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565 changed files with 8205 additions and 59835 deletions
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@@ -1,6 +1,3 @@
# Serper API Key (Google Search) - https://serper.dev
SERPER_API_KEY=your-serper-api-key
# TAVILY API Key
TAVILY_API_KEY=your-tavily-api-key
@@ -9,9 +6,8 @@ JINA_API_KEY=your-jina-api-key
# InfoQuest API Key
INFOQUEST_API_KEY=your-infoquest-api-key
# Browser CORS allowlist for split-origin or port-forwarded deployments (comma-separated exact origins).
# Leave unset when using the unified nginx endpoint, e.g. http://localhost:2026.
# GATEWAY_CORS_ORIGINS=http://localhost:3000,http://127.0.0.1:3000
# CORS Origins (comma-separated) - e.g., http://localhost:3000,http://localhost:3001
# CORS_ORIGINS=http://localhost:3000
# Optional:
# FIRECRAWL_API_KEY=your-firecrawl-api-key
@@ -28,7 +24,6 @@ INFOQUEST_API_KEY=your-infoquest-api-key
# SLACK_BOT_TOKEN=your-slack-bot-token
# SLACK_APP_TOKEN=your-slack-app-token
# TELEGRAM_BOT_TOKEN=your-telegram-bot-token
# DISCORD_BOT_TOKEN=your-discord-bot-token
# Enable LangSmith to monitor and debug your LLM calls, agent runs, and tool executions.
# LANGSMITH_TRACING=true
@@ -38,25 +33,5 @@ INFOQUEST_API_KEY=your-infoquest-api-key
# GitHub API Token
# GITHUB_TOKEN=your-github-token
# Database (only needed when config.yaml has database.backend: postgres)
# DATABASE_URL=postgresql://deerflow:password@localhost:5432/deerflow
#
# WECOM_BOT_ID=your-wecom-bot-id
# WECOM_BOT_SECRET=your-wecom-bot-secret
# DINGTALK_CLIENT_ID=your-dingtalk-client-id
# DINGTALK_CLIENT_SECRET=your-dingtalk-client-secret
# Set to "false" to disable Swagger UI, ReDoc, and OpenAPI schema in production
# GATEWAY_ENABLE_DOCS=false
# ── Frontend SSR → Gateway wiring ─────────────────────────────────────────────
# The Next.js server uses these to reach the Gateway during SSR (auth checks,
# /api/* rewrites). They default to localhost values that match `make dev` and
# `make start`, so most local users do not need to set them.
#
# Override only when the Gateway is not on localhost:8001 (e.g. when the
# frontend and gateway run on different hosts, in containers with a service
# alias, or behind a different port). docker-compose already sets these.
# DEER_FLOW_INTERNAL_GATEWAY_BASE_URL=http://localhost:8001
# DEER_FLOW_TRUSTED_ORIGINS=http://localhost:3000,http://localhost:2026
-101
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@@ -1,101 +0,0 @@
name: Publish Containers
on:
push:
tags:
- "v*"
jobs:
backend-container:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
attestations: write
id-token: write
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}-backend
steps:
- name: Checkout repository
uses: actions/checkout@v6
- name: Log in to the Container registry
uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 #v3.4.0
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 #v5.7.0
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
type=ref,event=tag
type=ref,event=branch
type=sha
type=raw,value=latest,enable={{is_default_branch}}
- name: Build and push Docker image
id: push
uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 #v6.18.0
with:
context: .
file: backend/Dockerfile
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
- name: Generate artifact attestation
uses: actions/attest-build-provenance@v2
with:
subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: true
frontend-container:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
attestations: write
id-token: write
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}-frontend
steps:
- name: Checkout repository
uses: actions/checkout@v6
- name: Log in to the Container registry
uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 #v3.4.0
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 #v5.7.0
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
type=ref,event=tag
type=ref,event=branch
type=sha
type=raw,value=latest,enable={{is_default_branch}}
- name: Build and push Docker image
id: push
uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 #v6.18.0
with:
context: .
file: frontend/Dockerfile
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
- name: Generate artifact attestation
uses: actions/attest-build-provenance@v2
with:
subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: true
-63
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@@ -1,63 +0,0 @@
name: E2E Tests
on:
push:
branches: [ 'main' ]
paths:
- 'frontend/**'
- '.github/workflows/e2e-tests.yml'
pull_request:
types: [opened, synchronize, reopened, ready_for_review]
paths:
- 'frontend/**'
- '.github/workflows/e2e-tests.yml'
concurrency:
group: e2e-tests-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
permissions:
contents: read
jobs:
e2e-tests:
if: ${{ github.event_name != 'pull_request' || github.event.pull_request.draft == false }}
runs-on: ubuntu-latest
timeout-minutes: 15
steps:
- name: Checkout
uses: actions/checkout@v6
- name: Setup Node.js
uses: actions/setup-node@v4
with:
node-version: '22'
- name: Enable Corepack
run: corepack enable
- name: Use pinned pnpm version
run: corepack prepare pnpm@10.26.2 --activate
- name: Install frontend dependencies
working-directory: frontend
run: pnpm install --frozen-lockfile
- name: Install Playwright Chromium
working-directory: frontend
run: npx playwright install chromium --with-deps
- name: Run E2E tests
working-directory: frontend
run: pnpm exec playwright test
env:
SKIP_ENV_VALIDATION: '1'
- name: Upload Playwright report
uses: actions/upload-artifact@v4
if: ${{ !cancelled() }}
with:
name: playwright-report
path: frontend/playwright-report/
retention-days: 7
-43
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@@ -1,43 +0,0 @@
name: Frontend Unit Tests
on:
push:
branches: [ 'main' ]
pull_request:
types: [opened, synchronize, reopened, ready_for_review]
concurrency:
group: frontend-unit-tests-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
permissions:
contents: read
jobs:
frontend-unit-tests:
if: github.event.pull_request.draft == false
runs-on: ubuntu-latest
timeout-minutes: 15
steps:
- name: Checkout
uses: actions/checkout@v6
- name: Setup Node.js
uses: actions/setup-node@v4
with:
node-version: '22'
- name: Enable Corepack
run: corepack enable
- name: Use pinned pnpm version
run: corepack prepare pnpm@10.26.2 --activate
- name: Install frontend dependencies
working-directory: frontend
run: pnpm install --frozen-lockfile
- name: Run unit tests of frontend
working-directory: frontend
run: make test
-3
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@@ -40,7 +40,6 @@ coverage/
skills/custom/*
logs/
log/
debug.log
# Local git hooks (keep only on this machine, do not push)
.githooks/
@@ -56,7 +55,5 @@ web/
backend/Dockerfile.langgraph
config.yaml.bak
.playwright-mcp
/frontend/test-results/
/frontend/playwright-report/
.gstack/
.worktrees
-33
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@@ -1,33 +0,0 @@
repos:
# Backend: ruff lint + format via uv (uses the same ruff version as backend deps)
- repo: local
hooks:
- id: ruff
name: ruff lint
entry: bash -c 'cd backend && uv run ruff check --fix "${@/#backend\//}"' --
language: system
types_or: [python]
files: ^backend/
- id: ruff-format
name: ruff format
entry: bash -c 'cd backend && uv run ruff format "${@/#backend\//}"' --
language: system
types_or: [python]
files: ^backend/
# Frontend: eslint + prettier (must run from frontend/ for node_modules resolution)
- repo: local
hooks:
- id: frontend-eslint
name: eslint (frontend)
entry: bash -c 'cd frontend && npx eslint --fix "${@/#frontend\//}"' --
language: system
types_or: [javascript, tsx, ts]
files: ^frontend/
- id: frontend-prettier
name: prettier (frontend)
entry: bash -c 'cd frontend && npx prettier --write "${@/#frontend\//}"' --
language: system
files: ^frontend/
types_or: [javascript, tsx, ts, json, css]
+26 -25
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@@ -46,12 +46,12 @@ Docker provides a consistent, isolated environment with all dependencies pre-con
All services will start with hot-reload enabled:
- Frontend changes are automatically reloaded
- Backend changes trigger automatic restart
- Gateway-hosted LangGraph-compatible runtime supports hot-reload
- LangGraph server supports hot-reload
4. **Access the application**:
- Web Interface: http://localhost:2026
- API Gateway: http://localhost:2026/api/*
- LangGraph-compatible API: http://localhost:2026/api/langgraph/*
- LangGraph: http://localhost:2026/api/langgraph/*
#### Docker Commands
@@ -94,7 +94,7 @@ Use these as practical starting points for development and review environments:
If `make docker-init`, `make docker-start`, or `make docker-stop` fails on Linux with an error like below, your current user likely does not have permission to access the Docker daemon socket:
```text
unable to get image 'deer-flow-gateway': permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
unable to get image 'deer-flow-dev-langgraph': permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
```
Recommended fix: add your current user to the `docker` group so Docker commands work without `sudo`.
@@ -131,8 +131,9 @@ Host Machine
Docker Compose (deer-flow-dev)
├→ nginx (port 2026) ← Reverse proxy
├→ web (port 3000) ← Frontend with hot-reload
├→ gateway (port 8001) ← Gateway API + LangGraph-compatible runtime with hot-reload
└→ provisioner (optional, port 8002) ← Started only in provisioner/K8s sandbox mode
├→ api (port 8001) ← Gateway API with hot-reload
├→ langgraph (port 2024) ← LangGraph server with hot-reload
└→ provisioner (optional, port 8002) ← Started only in provisioner/K8s sandbox mode
```
**Benefits of Docker Development**:
@@ -165,7 +166,7 @@ Required tools:
1. **Configure the application** (same as Docker setup above)
2. **Install dependencies** (this also sets up pre-commit hooks):
2. **Install dependencies**:
```bash
make install
```
@@ -183,13 +184,17 @@ Required tools:
If you need to start services individually:
1. **Start backend service**:
1. **Start backend services**:
```bash
# Terminal 1: Start Gateway API + embedded agent runtime (port 8001)
# Terminal 1: Start LangGraph Server (port 2024)
cd backend
make dev
# Terminal 2: Start Frontend (port 3000)
# Terminal 2: Start Gateway API (port 8001)
cd backend
make gateway
# Terminal 3: Start Frontend (port 3000)
cd frontend
pnpm dev
```
@@ -207,10 +212,10 @@ If you need to start services individually:
The nginx configuration provides:
- Unified entry point on port 2026
- Rewrites `/api/langgraph/*` to Gateway's LangGraph-compatible API (8001)
- Routes `/api/langgraph/*` to LangGraph Server (2024)
- Routes other `/api/*` endpoints to Gateway API (8001)
- Routes non-API requests to Frontend (3000)
- Same-origin API routing; split-origin or port-forwarded browser clients should use the Gateway `GATEWAY_CORS_ORIGINS` allowlist
- Centralized CORS handling
- SSE/streaming support for real-time agent responses
- Optimized timeouts for long-running operations
@@ -230,8 +235,8 @@ deer-flow/
│ └── nginx.local.conf # Nginx config for local dev
├── backend/ # Backend application
│ ├── src/
│ │ ├── gateway/ # Gateway API and LangGraph-compatible runtime (port 8001)
│ │ ├── agents/ # LangGraph agent runtime used by Gateway
│ │ ├── gateway/ # Gateway API (port 8001)
│ │ ├── agents/ # LangGraph agents (port 2024)
│ │ ├── mcp/ # Model Context Protocol integration
│ │ ├── skills/ # Skills system
│ │ └── sandbox/ # Sandbox execution
@@ -251,7 +256,8 @@ Browser
Nginx (port 2026) ← Unified entry point
├→ Frontend (port 3000) ← / (non-API requests)
→ Gateway API (port 8001) ← /api/* and /api/langgraph/* (LangGraph-compatible agent interactions)
→ Gateway API (port 8001) ← /api/models, /api/mcp, /api/skills, /api/threads/*/artifacts
└→ LangGraph Server (port 2024) ← /api/langgraph/* (agent interactions)
```
## Development Workflow
@@ -292,24 +298,19 @@ Nginx (port 2026) ← Unified entry point
```bash
# Backend tests
cd backend
make test
uv run pytest
# Frontend unit tests
# Frontend checks
cd frontend
make test
# Frontend E2E tests (requires Chromium; builds and auto-starts the Next.js production server)
cd frontend
make test-e2e
pnpm check
```
### PR Regression Checks
Every pull request triggers the following CI workflows:
Every pull request runs the backend regression workflow at [.github/workflows/backend-unit-tests.yml](.github/workflows/backend-unit-tests.yml), including:
- **Backend unit tests** — [.github/workflows/backend-unit-tests.yml](.github/workflows/backend-unit-tests.yml)
- **Frontend unit tests** — [.github/workflows/frontend-unit-tests.yml](.github/workflows/frontend-unit-tests.yml)
- **Frontend E2E tests** — [.github/workflows/e2e-tests.yml](.github/workflows/e2e-tests.yml) (triggered only when `frontend/` files change)
- `tests/test_provisioner_kubeconfig.py`
- `tests/test_docker_sandbox_mode_detection.py`
## Code Style
+37 -5
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@@ -1,6 +1,6 @@
# DeerFlow - Unified Development Environment
.PHONY: help config config-upgrade check install setup doctor dev dev-daemon start start-daemon stop up down clean docker-init docker-start docker-stop docker-logs docker-logs-frontend docker-logs-gateway
.PHONY: help config config-upgrade check install setup doctor dev dev-pro dev-daemon dev-daemon-pro start start-pro start-daemon start-daemon-pro stop up up-pro down clean docker-init docker-start docker-start-pro docker-stop docker-logs docker-logs-frontend docker-logs-gateway
BASH ?= bash
BACKEND_UV_RUN = cd backend && uv run
@@ -23,22 +23,28 @@ help:
@echo " make config - Generate local config files (aborts if config already exists)"
@echo " make config-upgrade - Merge new fields from config.example.yaml into config.yaml"
@echo " make check - Check if all required tools are installed"
@echo " make install - Install all dependencies (frontend + backend + pre-commit hooks)"
@echo " make install - Install all dependencies (frontend + backend)"
@echo " make setup-sandbox - Pre-pull sandbox container image (recommended)"
@echo " make dev - Start all services in development mode (with hot-reloading)"
@echo " make dev-pro - Start in dev + Gateway mode (experimental, no LangGraph server)"
@echo " make dev-daemon - Start dev services in background (daemon mode)"
@echo " make dev-daemon-pro - Start dev daemon + Gateway mode (experimental)"
@echo " make start - Start all services in production mode (optimized, no hot-reloading)"
@echo " make start-pro - Start in prod + Gateway mode (experimental)"
@echo " make start-daemon - Start prod services in background (daemon mode)"
@echo " make start-daemon-pro - Start prod daemon + Gateway mode (experimental)"
@echo " make stop - Stop all running services"
@echo " make clean - Clean up processes and temporary files"
@echo ""
@echo "Docker Production Commands:"
@echo " make up - Build and start production Docker services (localhost:2026)"
@echo " make up-pro - Build and start production Docker in Gateway mode (experimental)"
@echo " make down - Stop and remove production Docker containers"
@echo ""
@echo "Docker Development Commands:"
@echo " make docker-init - Pull the sandbox image"
@echo " make docker-start - Start Docker services (mode-aware from config.yaml, localhost:2026)"
@echo " make docker-start-pro - Start Docker in Gateway mode (experimental, no LangGraph container)"
@echo " make docker-stop - Stop Docker development services"
@echo " make docker-logs - View Docker development logs"
@echo " make docker-logs-frontend - View Docker frontend logs"
@@ -67,8 +73,6 @@ install:
@cd backend && uv sync
@echo "Installing frontend dependencies..."
@cd frontend && pnpm install
@echo "Installing pre-commit hooks..."
@$(BACKEND_UV_RUN) --with pre-commit pre-commit install
@echo "✓ All dependencies installed"
@echo ""
@echo "=========================================="
@@ -95,7 +99,7 @@ setup-sandbox:
echo ""; \
if command -v container >/dev/null 2>&1 && [ "$$(uname)" = "Darwin" ]; then \
echo "Detected Apple Container on macOS, pulling image..."; \
container image pull "$$IMAGE" || echo "⚠ Apple Container pull failed, will try Docker"; \
container pull "$$IMAGE" || echo "⚠ Apple Container pull failed, will try Docker"; \
fi; \
if command -v docker >/dev/null 2>&1; then \
echo "Pulling image using Docker..."; \
@@ -117,21 +121,41 @@ dev:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --dev
# Start all services in dev + Gateway mode (experimental: agent runtime embedded in Gateway)
dev-pro:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --dev --gateway
# Start all services in production mode (with optimizations)
start:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --prod
# Start all services in prod + Gateway mode (experimental)
start-pro:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --prod --gateway
# Start all services in daemon mode (background)
dev-daemon:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --dev --daemon
# Start daemon + Gateway mode (experimental)
dev-daemon-pro:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --dev --gateway --daemon
# Start prod services in daemon mode (background)
start-daemon:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --prod --daemon
# Start prod daemon + Gateway mode (experimental)
start-daemon-pro:
@$(PYTHON) ./scripts/check.py
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --prod --gateway --daemon
# Stop all services
stop:
@$(RUN_WITH_GIT_BASH) ./scripts/serve.sh --stop
@@ -156,6 +180,10 @@ docker-init:
docker-start:
@$(RUN_WITH_GIT_BASH) ./scripts/docker.sh start
# Start Docker in Gateway mode (experimental)
docker-start-pro:
@$(RUN_WITH_GIT_BASH) ./scripts/docker.sh start --gateway
# Stop Docker development environment
docker-stop:
@$(RUN_WITH_GIT_BASH) ./scripts/docker.sh stop
@@ -178,6 +206,10 @@ docker-logs-gateway:
up:
@$(RUN_WITH_GIT_BASH) ./scripts/deploy.sh
# Build and start production services in Gateway mode
up-pro:
@$(RUN_WITH_GIT_BASH) ./scripts/deploy.sh --gateway
# Stop and remove production containers
down:
@$(RUN_WITH_GIT_BASH) ./scripts/deploy.sh down
+37 -37
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@@ -243,9 +243,10 @@ make up # Build images and start all production services
make down # Stop and remove containers
```
Access: http://localhost:2026
> [!NOTE]
> The LangGraph agent server currently runs via `langgraph dev` (the open-source CLI server).
The unified nginx endpoint is same-origin by default and does not emit browser CORS headers. If you run a split-origin or port-forwarded browser client, set `GATEWAY_CORS_ORIGINS` to comma-separated exact origins such as `http://localhost:3000`; the Gateway then applies the CORS allowlist and matching CSRF origin checks.
Access: http://localhost:2026
See [CONTRIBUTING.md](CONTRIBUTING.md) for detailed Docker development guide.
@@ -253,7 +254,7 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for detailed Docker development guide.
If you prefer running services locally:
Prerequisite: complete the "Configuration" steps above first (`make setup`). `make dev` requires a valid `config.yaml` in the project root. Set `DEER_FLOW_PROJECT_ROOT` to define that root explicitly, or `DEER_FLOW_CONFIG_PATH` to point at a specific config file. Runtime state defaults to `.deer-flow` under the project root and can be moved with `DEER_FLOW_HOME`; skills default to `skills/` under the project root and can be moved with `DEER_FLOW_SKILLS_PATH`. Run `make doctor` to verify your setup before starting.
Prerequisite: complete the "Configuration" steps above first (`make setup`). `make dev` requires a valid `config.yaml` in the project root (can be overridden via `DEER_FLOW_CONFIG_PATH`). Run `make doctor` to verify your setup before starting.
On Windows, run the local development flow from Git Bash. Native `cmd.exe` and PowerShell shells are not supported for the bash-based service scripts, and WSL is not guaranteed because some scripts rely on Git for Windows utilities such as `cygpath`.
1. **Check prerequisites**:
@@ -263,7 +264,7 @@ On Windows, run the local development flow from Git Bash. Native `cmd.exe` and P
2. **Install dependencies**:
```bash
make install # Install backend + frontend dependencies + pre-commit hooks
make install # Install backend + frontend dependencies
```
3. **(Optional) Pre-pull sandbox image**:
@@ -288,31 +289,53 @@ On Windows, run the local development flow from Git Bash. Native `cmd.exe` and P
#### Startup Modes
DeerFlow runs the agent runtime inside the Gateway API. Development mode enables hot-reload; production mode uses a pre-built frontend.
DeerFlow supports multiple startup modes across two dimensions:
- **Dev / Prod** — dev enables hot-reload; prod uses pre-built frontend
- **Standard / Gateway** — standard uses a separate LangGraph server (4 processes); Gateway mode (experimental) embeds the agent runtime in the Gateway API (3 processes)
| | **Local Foreground** | **Local Daemon** | **Docker Dev** | **Docker Prod** |
|---|---|---|---|---|
| **Dev** | `./scripts/serve.sh --dev`<br/>`make dev` | `./scripts/serve.sh --dev --daemon`<br/>`make dev-daemon` | `./scripts/docker.sh start`<br/>`make docker-start` | — |
| **Dev + Gateway** | `./scripts/serve.sh --dev --gateway`<br/>`make dev-pro` | `./scripts/serve.sh --dev --gateway --daemon`<br/>`make dev-daemon-pro` | `./scripts/docker.sh start --gateway`<br/>`make docker-start-pro` | — |
| **Prod** | `./scripts/serve.sh --prod`<br/>`make start` | `./scripts/serve.sh --prod --daemon`<br/>`make start-daemon` | — | `./scripts/deploy.sh`<br/>`make up` |
| **Prod + Gateway** | `./scripts/serve.sh --prod --gateway`<br/>`make start-pro` | `./scripts/serve.sh --prod --gateway --daemon`<br/>`make start-daemon-pro` | — | `./scripts/deploy.sh --gateway`<br/>`make up-pro` |
| Action | Local | Docker Dev | Docker Prod |
|---|---|---|---|
| **Stop** | `./scripts/serve.sh --stop`<br/>`make stop` | `./scripts/docker.sh stop`<br/>`make docker-stop` | `./scripts/deploy.sh down`<br/>`make down` |
| **Restart** | `./scripts/serve.sh --restart [flags]` | `./scripts/docker.sh restart` | — |
Gateway owns `/api/langgraph/*` and translates those public LangGraph-compatible paths to its native `/api/*` routers behind nginx.
> **Gateway mode** eliminates the LangGraph server process — the Gateway API handles agent execution directly via async tasks, managing its own concurrency.
#### Why Gateway Mode?
In standard mode, DeerFlow runs a dedicated [LangGraph Platform](https://langchain-ai.github.io/langgraph/) server alongside the Gateway API. This architecture works well but has trade-offs:
| | Standard Mode | Gateway Mode |
|---|---|---|
| **Architecture** | Gateway (REST API) + LangGraph (agent runtime) | Gateway embeds agent runtime |
| **Concurrency** | `--n-jobs-per-worker` per worker (requires license) | `--workers` × async tasks (no per-worker cap) |
| **Containers / Processes** | 4 (frontend, gateway, langgraph, nginx) | 3 (frontend, gateway, nginx) |
| **Resource usage** | Higher (two Python runtimes) | Lower (single Python runtime) |
| **LangGraph Platform license** | Required for production images | Not required |
| **Cold start** | Slower (two services to initialize) | Faster |
Both modes are functionally equivalent — the same agents, tools, and skills work in either mode.
#### Docker Production Deployment
`deploy.sh` supports building and starting separately:
`deploy.sh` supports building and starting separately. Images are mode-agnostic — runtime mode is selected at start time:
```bash
# One-step (build + start)
deploy.sh
deploy.sh # standard mode (default)
deploy.sh --gateway # gateway mode
# Two-step (build once, start later)
# Two-step (build once, start with any mode)
deploy.sh build # build all images
deploy.sh start # start pre-built images
deploy.sh start # start in standard mode
deploy.sh start --gateway # start in gateway mode
# Stop
deploy.sh down
@@ -347,14 +370,13 @@ DeerFlow supports receiving tasks from messaging apps. Channels auto-start when
| Feishu / Lark | WebSocket | Moderate |
| WeChat | Tencent iLink (long-polling) | Moderate |
| WeCom | WebSocket | Moderate |
| DingTalk | Stream Push (WebSocket) | Moderate |
**Configuration in `config.yaml`:**
```yaml
channels:
# LangGraph-compatible Gateway API base URL (default: http://localhost:8001/api)
langgraph_url: http://localhost:8001/api
# LangGraph Server URL (default: http://localhost:2024)
langgraph_url: http://localhost:2024
# Gateway API URL (default: http://localhost:8001)
gateway_url: http://localhost:8001
@@ -417,19 +439,11 @@ channels:
context:
thinking_enabled: true
subagent_enabled: true
dingtalk:
enabled: true
client_id: $DINGTALK_CLIENT_ID # Client ID of your DingTalk application
client_secret: $DINGTALK_CLIENT_SECRET # Client Secret of your DingTalk application
allowed_users: [] # empty = allow all
card_template_id: "" # Optional: AI Card template ID for streaming typewriter effect
```
Notes:
- `assistant_id: lead_agent` calls the default LangGraph assistant directly.
- If `assistant_id` is set to a custom agent name, DeerFlow still routes through `lead_agent` and injects that value as `agent_name`, so the custom agent's SOUL/config takes effect for IM channels.
- IM channel workers call Gateway's LangGraph-compatible API internally and automatically attach process-local internal auth plus the CSRF cookie/header pair required for thread and run creation.
Set the corresponding API keys in your `.env` file:
@@ -452,10 +466,6 @@ WECHAT_ILINK_BOT_ID=your_ilink_bot_id
# WeCom
WECOM_BOT_ID=your_bot_id
WECOM_BOT_SECRET=your_bot_secret
# DingTalk
DINGTALK_CLIENT_ID=your_client_id
DINGTALK_CLIENT_SECRET=your_client_secret
```
**Telegram Setup**
@@ -494,15 +504,7 @@ DINGTALK_CLIENT_SECRET=your_client_secret
4. Make sure backend dependencies include `wecom-aibot-python-sdk`. The channel uses a WebSocket long connection and does not require a public callback URL.
5. The current integration supports inbound text, image, and file messages. Final images/files generated by the agent are also sent back to the WeCom conversation.
**DingTalk Setup**
1. Create a DingTalk application in the [DingTalk Developer Console](https://open.dingtalk.com/) and enable **Robot** capability.
2. Set the message receiving mode to **Stream Mode** in the robot configuration page.
3. Copy the `Client ID` and `Client Secret`, set `DINGTALK_CLIENT_ID` and `DINGTALK_CLIENT_SECRET` in `.env`, and enable the channel in `config.yaml`.
4. *(Optional)* To enable streaming AI Card replies (typewriter effect), create an **AI Card** template on the [DingTalk Card Platform](https://open.dingtalk.com/document/dingstart/typewriter-effect-streaming-ai-card), then set `card_template_id` in `config.yaml` to the template ID. You also need to apply for the `Card.Streaming.Write` and `Card.Instance.Write` permissions.
When DeerFlow runs in Docker Compose, IM channels execute inside the `gateway` container. In that case, do not point `channels.langgraph_url` or `channels.gateway_url` at `localhost`; use container service names such as `http://gateway:8001/api` and `http://gateway:8001`, or set `DEER_FLOW_CHANNELS_LANGGRAPH_URL` and `DEER_FLOW_CHANNELS_GATEWAY_URL`.
When DeerFlow runs in Docker Compose, IM channels execute inside the `gateway` container. In that case, do not point `channels.langgraph_url` or `channels.gateway_url` at `localhost`; use container service names such as `http://langgraph:2024` and `http://gateway:8001`, or set `DEER_FLOW_CHANNELS_LANGGRAPH_URL` and `DEER_FLOW_CHANNELS_GATEWAY_URL`.
**Commands**
@@ -628,7 +630,7 @@ See [`skills/public/claude-to-deerflow/SKILL.md`](skills/public/claude-to-deerfl
Complex tasks rarely fit in a single pass. DeerFlow decomposes them.
The lead agent can spawn sub-agents on the fly — each with its own scoped context, tools, and termination conditions. Sub-agents run in parallel when possible, report back structured results, and the lead agent synthesizes everything into a coherent output. When token usage tracking is enabled, completed sub-agent usage is attributed back to the dispatching step.
The lead agent can spawn sub-agents on the fly — each with its own scoped context, tools, and termination conditions. Sub-agents run in parallel when possible, report back structured results, and the lead agent synthesizes everything into a coherent output.
This is how DeerFlow handles tasks that take minutes to hours: a research task might fan out into a dozen sub-agents, each exploring a different angle, then converge into a single report — or a website — or a slide deck with generated visuals. One harness, many hands.
@@ -656,8 +658,6 @@ This is the difference between a chatbot with tool access and an agent with an a
**Summarization**: Within a session, DeerFlow manages context aggressively — summarizing completed sub-tasks, offloading intermediate results to the filesystem, compressing what's no longer immediately relevant. This lets it stay sharp across long, multi-step tasks without blowing the context window.
**Strict Tool-Call Recovery**: When a provider or middleware interrupts a tool-call loop, DeerFlow now strips provider-level raw tool-call metadata on forced-stop assistant messages and injects placeholder tool results for dangling calls before the next model invocation. This keeps OpenAI-compatible reasoning models that strictly validate `tool_call_id` sequences from failing with malformed history errors.
### Long-Term Memory
Most agents forget everything the moment a conversation ends. DeerFlow remembers.
+3 -22
View File
@@ -228,7 +228,7 @@ make down # Stop and remove containers
```
> [!NOTE]
> Le runtime d'agent s'exécute actuellement dans la Gateway. nginx réécrit `/api/langgraph/*` vers l'API compatible LangGraph servie par la Gateway.
> Le serveur d'agents LangGraph fonctionne actuellement via `langgraph dev` (le serveur CLI open source).
Accès : http://localhost:2026
@@ -290,14 +290,13 @@ DeerFlow peut recevoir des tâches depuis des applications de messagerie. Les ca
| Telegram | Bot API (long-polling) | Facile |
| Slack | Socket Mode | Modérée |
| Feishu / Lark | WebSocket | Modérée |
| DingTalk | Stream Push (WebSocket) | Modérée |
**Configuration dans `config.yaml` :**
```yaml
channels:
# LangGraph-compatible Gateway API base URL (default: http://localhost:8001/api)
langgraph_url: http://localhost:8001/api
# LangGraph Server URL (default: http://localhost:2024)
langgraph_url: http://localhost:2024
# Gateway API URL (default: http://localhost:8001)
gateway_url: http://localhost:8001
@@ -342,13 +341,6 @@ channels:
context:
thinking_enabled: true
subagent_enabled: true
dingtalk:
enabled: true
client_id: $DINGTALK_CLIENT_ID # ClientId depuis DingTalk Open Platform
client_secret: $DINGTALK_CLIENT_SECRET # ClientSecret depuis DingTalk Open Platform
allowed_users: [] # vide = tout le monde autorisé
card_template_id: "" # Optionnel : ID de modèle AI Card pour l'effet machine à écrire en streaming
```
Définissez les clés API correspondantes dans votre fichier `.env` :
@@ -364,10 +356,6 @@ SLACK_APP_TOKEN=xapp-...
# Feishu / Lark
FEISHU_APP_ID=cli_xxxx
FEISHU_APP_SECRET=your_app_secret
# DingTalk
DINGTALK_CLIENT_ID=your_client_id
DINGTALK_CLIENT_SECRET=your_client_secret
```
**Configuration Telegram**
@@ -390,13 +378,6 @@ DINGTALK_CLIENT_SECRET=your_client_secret
3. Dans **Events**, abonnez-vous à `im.message.receive_v1` et sélectionnez le mode **Long Connection**.
4. Copiez l'App ID et l'App Secret. Définissez `FEISHU_APP_ID` et `FEISHU_APP_SECRET` dans `.env` et activez le canal dans `config.yaml`.
**Configuration DingTalk**
1. Créez une application sur [DingTalk Open Platform](https://open.dingtalk.com/) et activez la capacité **Robot**.
2. Dans la page de configuration du robot, définissez le mode de réception des messages sur **Stream**.
3. Copiez le `Client ID` et le `Client Secret`. Définissez `DINGTALK_CLIENT_ID` et `DINGTALK_CLIENT_SECRET` dans `.env` et activez le canal dans `config.yaml`.
4. *(Optionnel)* Pour activer les réponses en streaming AI Card (effet machine à écrire), créez un modèle **AI Card** sur la [plateforme de cartes DingTalk](https://open.dingtalk.com/document/dingstart/typewriter-effect-streaming-ai-card), puis définissez `card_template_id` dans `config.yaml` avec l'ID du modèle. Vous devez également demander les permissions `Card.Streaming.Write` et `Card.Instance.Write`.
**Commandes**
Une fois un canal connecté, vous pouvez interagir avec DeerFlow directement depuis le chat :
+3 -22
View File
@@ -181,7 +181,7 @@ make down # コンテナを停止して削除
```
> [!NOTE]
> Agentランタイムは現在Gateway内で実行されます。`/api/langgraph/*`はnginxによってGatewayのLangGraph-compatible APIへ書き換えられます。
> LangGraphエージェントサーバーは現在`langgraph dev`(オープンソースCLIサーバー)経由で実行されます。
アクセス: http://localhost:2026
@@ -243,14 +243,13 @@ DeerFlowはメッセージングアプリからのタスク受信をサポート
| Telegram | Bot API(ロングポーリング) | 簡単 |
| Slack | Socket Mode | 中程度 |
| Feishu / Lark | WebSocket | 中程度 |
| DingTalk | Stream PushWebSocket | 中程度 |
**`config.yaml`での設定:**
```yaml
channels:
# LangGraph-compatible Gateway API base URL(デフォルト: http://localhost:8001/api
langgraph_url: http://localhost:8001/api
# LangGraphサーバーURL(デフォルト: http://localhost:2024
langgraph_url: http://localhost:2024
# Gateway API URL(デフォルト: http://localhost:8001
gateway_url: http://localhost:8001
@@ -295,13 +294,6 @@ channels:
context:
thinking_enabled: true
subagent_enabled: true
dingtalk:
enabled: true
client_id: $DINGTALK_CLIENT_ID # DingTalk Open PlatformのClientId
client_secret: $DINGTALK_CLIENT_SECRET # DingTalk Open PlatformのClientSecret
allowed_users: [] # 空 = 全員許可
card_template_id: "" # オプション:ストリーミングタイプライター効果用のAIカードテンプレートID
```
対応するAPIキーを`.env`ファイルに設定します:
@@ -317,10 +309,6 @@ SLACK_APP_TOKEN=xapp-...
# Feishu / Lark
FEISHU_APP_ID=cli_xxxx
FEISHU_APP_SECRET=your_app_secret
# DingTalk
DINGTALK_CLIENT_ID=your_client_id
DINGTALK_CLIENT_SECRET=your_client_secret
```
**Telegramのセットアップ**
@@ -343,13 +331,6 @@ DINGTALK_CLIENT_SECRET=your_client_secret
3. **イベント**で`im.message.receive_v1`を購読し、**ロングコネクション**モードを選択。
4. App IDとApp Secretをコピー。`.env`に`FEISHU_APP_ID`と`FEISHU_APP_SECRET`を設定し、`config.yaml`でチャネルを有効にします。
**DingTalkのセットアップ**
1. [DingTalk Open Platform](https://open.dingtalk.com/)でアプリを作成し、**ロボット**機能を有効化します。
2. ロボット設定ページでメッセージ受信モードを**Streamモード**に設定します。
3. `Client ID`と`Client Secret`をコピー。`.env`に`DINGTALK_CLIENT_ID`と`DINGTALK_CLIENT_SECRET`を設定し、`config.yaml`でチャネルを有効にします。
4. *(オプション)* ストリーミングAIカード返信(タイプライター効果)を有効にするには、[DingTalkカードプラットフォーム](https://open.dingtalk.com/document/dingstart/typewriter-effect-streaming-ai-card)で**AIカード**テンプレートを作成し、`config.yaml`の`card_template_id`にテンプレートIDを設定します。`Card.Streaming.Write` および `Card.Instance.Write` 権限の申請も必要です。
**コマンド**
チャネル接続後、チャットから直接DeerFlowと対話できます:
-15
View File
@@ -256,7 +256,6 @@ DeerFlow принимает задачи прямо из мессенджеро
| Telegram | Bot API (long-polling) | Просто |
| Slack | Socket Mode | Средне |
| Feishu / Lark | WebSocket | Средне |
| DingTalk | Stream Push (WebSocket) | Средне |
**Конфигурация в `config.yaml`:**
@@ -279,13 +278,6 @@ channels:
enabled: true
bot_token: $TELEGRAM_BOT_TOKEN
allowed_users: []
dingtalk:
enabled: true
client_id: $DINGTALK_CLIENT_ID # ClientId с DingTalk Open Platform
client_secret: $DINGTALK_CLIENT_SECRET # ClientSecret с DingTalk Open Platform
allowed_users: [] # пусто = разрешить всем
card_template_id: "" # Опционально: ID шаблона AI Card для потокового эффекта печатной машинки
```
**Настройка Telegram**
@@ -293,13 +285,6 @@ channels:
1. Напишите [@BotFather](https://t.me/BotFather), отправьте `/newbot` и скопируйте HTTP API-токен.
2. Укажите `TELEGRAM_BOT_TOKEN` в `.env` и включите канал в `config.yaml`.
**Настройка DingTalk**
1. Создайте приложение на [DingTalk Open Platform](https://open.dingtalk.com/) и включите возможность **Робот**.
2. На странице настроек робота установите режим приёма сообщений на **Stream**.
3. Скопируйте `Client ID` и `Client Secret`. Укажите `DINGTALK_CLIENT_ID` и `DINGTALK_CLIENT_SECRET` в `.env` и включите канал в `config.yaml`.
4. *(Опционально)* Для включения потоковых ответов AI Card (эффект печатной машинки) создайте шаблон **AI Card** на [платформе карточек DingTalk](https://open.dingtalk.com/document/dingstart/typewriter-effect-streaming-ai-card), затем укажите `card_template_id` в `config.yaml` с ID шаблона. Также необходимо запросить разрешения `Card.Streaming.Write` и `Card.Instance.Write`.
**Доступные команды**
| Команда | Описание |
+4 -23
View File
@@ -184,7 +184,7 @@ make down # 停止并移除容器
```
> [!NOTE]
> 当前 Agent 运行时嵌入在 Gateway 中运行,`/api/langgraph/*` 会由 nginx 重写到 Gateway 的 LangGraph-compatible API
> 当前 LangGraph agent server 通过开源 CLI 服务 `langgraph dev` 运行
访问地址:http://localhost:2026
@@ -194,7 +194,7 @@ make down # 停止并移除容器
如果你更希望直接在本地启动各个服务:
前提:先完成上面的“配置”步骤(`make config` 和模型 API key 配置)。`make dev` 需要有效配置文件,默认读取项目根目录下的 `config.yaml`。可以用 `DEER_FLOW_PROJECT_ROOT` 显式指定项目根目录,也可以 `DEER_FLOW_CONFIG_PATH` 指向某个具体配置文件。运行期状态默认写到项目根目录下的 `.deer-flow`,可用 `DEER_FLOW_HOME` 覆盖;skills 默认读取项目根目录下的 `skills/`,可用 `DEER_FLOW_SKILLS_PATH` 覆盖。
前提:先完成上面的“配置”步骤(`make config` 和模型 API key 配置)。`make dev` 需要有效配置文件,默认读取项目根目录下的 `config.yaml`,也可以通过 `DEER_FLOW_CONFIG_PATH` 覆盖。
在 Windows 上,请使用 Git Bash 运行本地开发流程。基于 bash 的服务脚本不支持直接在原生 `cmd.exe` 或 PowerShell 中执行,且 WSL 也不保证可用,因为部分脚本依赖 Git for Windows 的 `cygpath` 等工具。
1. **检查依赖环境**
@@ -248,14 +248,13 @@ DeerFlow 支持从即时通讯应用接收任务。只要配置完成,对应
| Slack | Socket Mode | 中等 |
| Feishu / Lark | WebSocket | 中等 |
| 企业微信智能机器人 | WebSocket | 中等 |
| 钉钉 | Stream PushWebSocket | 中等 |
**`config.yaml` 中的配置示例:**
```yaml
channels:
# LangGraph-compatible Gateway API base URL(默认:http://localhost:8001/api
langgraph_url: http://localhost:8001/api
# LangGraph Server URL(默认:http://localhost:2024
langgraph_url: http://localhost:2024
# Gateway API URL(默认:http://localhost:8001
gateway_url: http://localhost:8001
@@ -305,13 +304,6 @@ channels:
context:
thinking_enabled: true
subagent_enabled: true
dingtalk:
enabled: true
client_id: $DINGTALK_CLIENT_ID # 钉钉开放平台 ClientId
client_secret: $DINGTALK_CLIENT_SECRET # 钉钉开放平台 ClientSecret
allowed_users: [] # 留空表示允许所有人
card_template_id: "" # 可选:AI 卡片模板 ID,用于流式打字机效果
```
说明:
@@ -335,10 +327,6 @@ FEISHU_APP_SECRET=your_app_secret
# 企业微信智能机器人
WECOM_BOT_ID=your_bot_id
WECOM_BOT_SECRET=your_bot_secret
# 钉钉
DINGTALK_CLIENT_ID=your_client_id
DINGTALK_CLIENT_SECRET=your_client_secret
```
**Telegram 配置**
@@ -369,13 +357,6 @@ DINGTALK_CLIENT_SECRET=your_client_secret
4. 安装后端依赖时确保包含 `wecom-aibot-python-sdk`,渠道会通过 WebSocket 长连接接收消息,无需公网回调地址。
5. 当前支持文本、图片和文件入站消息;agent 生成的最终图片/文件也会回传到企业微信会话中。
**钉钉配置**
1. 在 [钉钉开放平台](https://open.dingtalk.com/) 创建应用,并启用 **机器人** 能力。
2. 在机器人配置页面设置消息接收模式为 **Stream模式**。
3. 复制 `Client ID` 和 `Client Secret`,在 `.env` 中设置 `DINGTALK_CLIENT_ID` 和 `DINGTALK_CLIENT_SECRET`,并在 `config.yaml` 中启用该渠道。
4. *(可选)* 如需开启流式 AI 卡片回复(打字机效果),请在[钉钉卡片平台](https://open.dingtalk.com/document/dingstart/typewriter-effect-streaming-ai-card)创建 **AI 卡片**模板,然后在 `config.yaml` 中将 `card_template_id` 设为该模板 ID。同时需要申请 `Card.Streaming.Write` 和 `Card.Instance.Write` 权限。
**命令**
渠道连接完成后,你可以直接在聊天窗口里和 DeerFlow 交互:
+58 -79
View File
@@ -7,13 +7,15 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
DeerFlow is a LangGraph-based AI super agent system with a full-stack architecture. The backend provides a "super agent" with sandbox execution, persistent memory, subagent delegation, and extensible tool integration - all operating in per-thread isolated environments.
**Architecture**:
- **Gateway API** (port 8001): REST API plus embedded LangGraph-compatible agent runtime
- **LangGraph Server** (port 2024): Agent runtime and workflow execution
- **Gateway API** (port 8001): REST API for models, MCP, skills, memory, artifacts, uploads, and local thread cleanup
- **Frontend** (port 3000): Next.js web interface
- **Nginx** (port 2026): Unified reverse proxy entry point
- **Provisioner** (port 8002, optional in Docker dev): Started only when sandbox is configured for provisioner/Kubernetes mode
**Runtime**:
- `make dev`, Docker dev, and production all run the agent runtime in Gateway via `RunManager` + `run_agent()` + `StreamBridge` (`packages/harness/deerflow/runtime/`). Nginx exposes that runtime at `/api/langgraph/*` and rewrites it to Gateway's native `/api/*` routers.
**Runtime Modes**:
- **Standard mode** (`make dev`): LangGraph Server handles agent execution as a separate process. 4 processes total.
- **Gateway mode** (`make dev-pro`, experimental): Agent runtime embedded in Gateway via `RunManager` + `run_agent()` + `StreamBridge` (`packages/harness/deerflow/runtime/`). Service manages its own concurrency via async tasks. 3 processes total, no LangGraph Server.
**Project Structure**:
```
@@ -23,7 +25,7 @@ deer-flow/
├── extensions_config.json # MCP servers and skills configuration
├── backend/ # Backend application (this directory)
│ ├── Makefile # Backend-only commands (dev, gateway, lint)
│ ├── langgraph.json # LangGraph Studio graph configuration
│ ├── langgraph.json # LangGraph server configuration
│ ├── packages/
│ │ └── harness/ # deerflow-harness package (import: deerflow.*)
│ │ ├── pyproject.toml
@@ -81,15 +83,16 @@ When making code changes, you MUST update the relevant documentation:
```bash
make check # Check system requirements
make install # Install all dependencies (frontend + backend)
make dev # Start all services (Gateway + Frontend + Nginx), with config.yaml preflight
make start # Start production services locally
make dev # Start all services (LangGraph + Gateway + Frontend + Nginx), with config.yaml preflight
make dev-pro # Gateway mode (experimental): skip LangGraph, agent runtime embedded in Gateway
make start-pro # Production + Gateway mode (experimental)
make stop # Stop all services
```
**Backend directory** (for backend development only):
```bash
make install # Install backend dependencies
make dev # Run Gateway API with reload (port 8001)
make dev # Run LangGraph server only (port 2024)
make gateway # Run Gateway API only (port 8001)
make test # Run all backend tests
make lint # Lint with ruff
@@ -112,7 +115,7 @@ CI runs these regression tests for every pull request via [.github/workflows/bac
The backend is split into two layers with a strict dependency direction:
- **Harness** (`packages/harness/deerflow/`): Publishable agent framework package (`deerflow-harness`). Import prefix: `deerflow.*`. Contains agent orchestration, tools, sandbox, models, MCP, skills, config — everything needed to build and run agents.
- **App** (`app/`): Unpublished application code. Import prefix: `app.*`. Contains the FastAPI Gateway API and IM channel integrations (Feishu, Slack, Telegram, DingTalk).
- **App** (`app/`): Unpublished application code. Import prefix: `app.*`. Contains the FastAPI Gateway API and IM channel integrations (Feishu, Slack, Telegram).
**Dependency rule**: App imports deerflow, but deerflow never imports app. This boundary is enforced by `tests/test_harness_boundary.py` which runs in CI.
@@ -153,26 +156,20 @@ from deerflow.config import get_app_config
### Middleware Chain
Lead-agent middlewares are assembled in strict append order across `packages/harness/deerflow/agents/middlewares/tool_error_handling_middleware.py` (`build_lead_runtime_middlewares`) and `packages/harness/deerflow/agents/lead_agent/agent.py` (`_build_middlewares`):
Middlewares execute in strict order in `packages/harness/deerflow/agents/lead_agent/agent.py`:
1. **ThreadDataMiddleware** - Creates per-thread directories under the user's isolation scope (`backend/.deer-flow/users/{user_id}/threads/{thread_id}/user-data/{workspace,uploads,outputs}`); resolves `user_id` via `get_effective_user_id()` (falls back to `"default"` in no-auth mode); Web UI thread deletion now follows LangGraph thread removal with Gateway cleanup of the local thread directory
1. **ThreadDataMiddleware** - Creates per-thread directories (`backend/.deer-flow/threads/{thread_id}/user-data/{workspace,uploads,outputs}`); Web UI thread deletion now follows LangGraph thread removal with Gateway cleanup of the local `.deer-flow/threads/{thread_id}` directory
2. **UploadsMiddleware** - Tracks and injects newly uploaded files into conversation
3. **SandboxMiddleware** - Acquires sandbox, stores `sandbox_id` in state
4. **DanglingToolCallMiddleware** - Injects placeholder ToolMessages for AIMessage tool_calls that lack responses (e.g., due to user interruption), including raw provider tool-call payloads preserved only in `additional_kwargs["tool_calls"]`
5. **LLMErrorHandlingMiddleware** - Normalizes provider/model invocation failures into recoverable assistant-facing errors before later middleware/tool stages run
6. **GuardrailMiddleware** - Pre-tool-call authorization via pluggable `GuardrailProvider` protocol (optional, if `guardrails.enabled` in config). Evaluates each tool call and returns error ToolMessage on deny. Three provider options: built-in `AllowlistProvider` (zero deps), OAP policy providers (e.g. `aport-agent-guardrails`), or custom providers. See [docs/GUARDRAILS.md](docs/GUARDRAILS.md) for setup, usage, and how to implement a provider.
7. **SandboxAuditMiddleware** - Audits sandboxed shell/file operations for security logging before tool execution continues
8. **ToolErrorHandlingMiddleware** - Converts tool exceptions into error `ToolMessage`s so the run can continue instead of aborting
9. **SummarizationMiddleware** - Context reduction when approaching token limits (optional, if enabled)
10. **TodoListMiddleware** - Task tracking with `write_todos` tool (optional, if plan_mode)
11. **TokenUsageMiddleware** - Records token usage metrics when token tracking is enabled (optional); subagent usage is cached by `tool_call_id` only while token usage is enabled and merged back into the dispatching AIMessage by message position rather than message id
12. **TitleMiddleware** - Auto-generates thread title after first complete exchange and normalizes structured message content before prompting the title model
13. **MemoryMiddleware** - Queues conversations for async memory update (filters to user + final AI responses)
14. **ViewImageMiddleware** - Injects base64 image data before LLM call (conditional on vision support)
15. **DeferredToolFilterMiddleware** - Hides deferred tool schemas from the bound model until tool search is enabled (optional)
16. **SubagentLimitMiddleware** - Truncates excess `task` tool calls from model response to enforce `MAX_CONCURRENT_SUBAGENTS` limit (optional, if `subagent_enabled`)
17. **LoopDetectionMiddleware** - Detects repeated tool-call loops; hard-stop responses clear both structured `tool_calls` and raw provider tool-call metadata before forcing a final text answer
18. **ClarificationMiddleware** - Intercepts `ask_clarification` tool calls, interrupts via `Command(goto=END)` (must be last)
4. **DanglingToolCallMiddleware** - Injects placeholder ToolMessages for AIMessage tool_calls that lack responses (e.g., due to user interruption)
5. **GuardrailMiddleware** - Pre-tool-call authorization via pluggable `GuardrailProvider` protocol (optional, if `guardrails.enabled` in config). Evaluates each tool call and returns error ToolMessage on deny. Three provider options: built-in `AllowlistProvider` (zero deps), OAP policy providers (e.g. `aport-agent-guardrails`), or custom providers. See [docs/GUARDRAILS.md](docs/GUARDRAILS.md) for setup, usage, and how to implement a provider.
6. **SummarizationMiddleware** - Context reduction when approaching token limits (optional, if enabled)
7. **TodoListMiddleware** - Task tracking with `write_todos` tool (optional, if plan_mode)
8. **TitleMiddleware** - Auto-generates thread title after first complete exchange and normalizes structured message content before prompting the title model
9. **MemoryMiddleware** - Queues conversations for async memory update (filters to user + final AI responses)
10. **ViewImageMiddleware** - Injects base64 image data before LLM call (conditional on vision support)
11. **SubagentLimitMiddleware** - Truncates excess `task` tool calls from model response to enforce `MAX_CONCURRENT_SUBAGENTS` limit (optional, if subagent_enabled)
12. **ClarificationMiddleware** - Intercepts `ask_clarification` tool calls, interrupts via `Command(goto=END)` (must be last)
### Configuration System
@@ -205,9 +202,7 @@ Configuration priority:
### Gateway API (`app/gateway/`)
FastAPI application on port 8001 with health check at `GET /health`. Set `GATEWAY_ENABLE_DOCS=false` to disable `/docs`, `/redoc`, and `/openapi.json` in production (default: enabled).
CORS is same-origin by default when requests enter through nginx on port 2026. Split-origin or port-forwarded browser clients must opt in with `GATEWAY_CORS_ORIGINS` (comma-separated exact origins); Gateway `CORSMiddleware` and `CSRFMiddleware` both read that variable so browser CORS and auth-origin checks stay aligned.
FastAPI application on port 8001 with health check at `GET /health`.
**Routers**:
@@ -221,37 +216,28 @@ CORS is same-origin by default when requests enter through nginx on port 2026. S
| **Threads** (`/api/threads/{id}`) | `DELETE /` - remove DeerFlow-managed local thread data after LangGraph thread deletion; unexpected failures are logged server-side and return a generic 500 detail |
| **Artifacts** (`/api/threads/{id}/artifacts`) | `GET /{path}` - serve artifacts; active content types (`text/html`, `application/xhtml+xml`, `image/svg+xml`) are always forced as download attachments to reduce XSS risk; `?download=true` still forces download for other file types |
| **Suggestions** (`/api/threads/{id}/suggestions`) | `POST /` - generate follow-up questions; rich list/block model content is normalized before JSON parsing |
| **Thread Runs** (`/api/threads/{id}/runs`) | `POST /` - create background run; `POST /stream` - create + SSE stream; `POST /wait` - create + block; `GET /` - list runs; `GET /{rid}` - run details; `POST /{rid}/cancel` - cancel; `GET /{rid}/join` - join SSE; `GET /{rid}/messages` - paginated messages `{data, has_more}`; `GET /{rid}/events` - full event stream; `GET /../messages` - thread messages with feedback; `GET /../token-usage` - aggregate tokens |
| **Feedback** (`/api/threads/{id}/runs/{rid}/feedback`) | `PUT /` - upsert feedback; `DELETE /` - delete user feedback; `POST /` - create feedback; `GET /` - list feedback; `GET /stats` - aggregate stats; `DELETE /{fid}` - delete specific |
| **Runs** (`/api/runs`) | `POST /stream` - stateless run + SSE; `POST /wait` - stateless run + block; `GET /{rid}/messages` - paginated messages by run_id `{data, has_more}` (cursor: `after_seq`/`before_seq`); `GET /{rid}/feedback` - list feedback by run_id |
**RunManager / RunStore contract**:
- `RunManager.get()` is async; direct callers must `await` it.
- When a persistent `RunStore` is configured, `get()` and `list_by_thread()` hydrate historical runs from the store. In-memory records win for the same `run_id` so task, abort, and stream-control state stays attached to active local runs.
- `cancel()` and `create_or_reject(..., multitask_strategy="interrupt"|"rollback")` persist interrupted status through `RunStore.update_status()`, matching normal `set_status()` transitions.
- Store-only hydrated runs are readable history. If the current worker has no in-memory task/control state for that run, cancellation APIs can return 409 because this worker cannot stop the task.
Proxied through nginx: `/api/langgraph/*` → Gateway LangGraph-compatible runtime, all other `/api/*` → Gateway REST APIs.
Proxied through nginx: `/api/langgraph/*` → LangGraph, all other `/api/*` → Gateway.
### Sandbox System (`packages/harness/deerflow/sandbox/`)
**Interface**: Abstract `Sandbox` with `execute_command`, `read_file`, `write_file`, `list_dir`
**Provider Pattern**: `SandboxProvider` with `acquire`, `get`, `release` lifecycle
**Implementations**:
- `LocalSandboxProvider` - Local filesystem execution. `acquire(thread_id)` returns a per-thread `LocalSandbox` (id `local:{thread_id}`) whose `path_mappings` resolve `/mnt/user-data/{workspace,uploads,outputs}` and `/mnt/acp-workspace` to that thread's host directories, so the public `Sandbox` API honours the `/mnt/user-data` contract uniformly with AIO. `acquire()` / `acquire(None)` keeps the legacy generic singleton (id `local`) for callers without a thread context. Per-thread sandboxes are held in an LRU cache (default 256 entries) guarded by a `threading.Lock`.
- `LocalSandboxProvider` - Singleton local filesystem execution with path mappings
- `AioSandboxProvider` (`packages/harness/deerflow/community/`) - Docker-based isolation
**Virtual Path System**:
- Agent sees: `/mnt/user-data/{workspace,uploads,outputs}`, `/mnt/skills`
- Physical: `backend/.deer-flow/users/{user_id}/threads/{thread_id}/user-data/...`, `deer-flow/skills/`
- Translation: `LocalSandboxProvider` builds per-thread `PathMapping`s for the user-data prefixes at acquire time; `tools.py` keeps `replace_virtual_path()` / `replace_virtual_paths_in_command()` as a defense-in-depth layer (and for path validation). AIO has the directories volume-mounted at the same virtual paths inside its container, so both implementations accept `/mnt/user-data/...` natively.
- Detection: `is_local_sandbox()` accepts both `sandbox_id == "local"` (legacy / no-thread) and `sandbox_id.startswith("local:")` (per-thread)
- Physical: `backend/.deer-flow/threads/{thread_id}/user-data/...`, `deer-flow/skills/`
- Translation: `replace_virtual_path()` / `replace_virtual_paths_in_command()`
- Detection: `is_local_sandbox()` checks `sandbox_id == "local"`
**Sandbox Tools** (in `packages/harness/deerflow/sandbox/tools.py`):
- `bash` - Execute commands with path translation and error handling
- `ls` - Directory listing (tree format, max 2 levels)
- `read_file` - Read file contents with optional line range
- `write_file` - Write/append to files, creates directories; overwrites by default and exposes the `append` argument in the model-facing schema for end-of-file writes
- `write_file` - Write/append to files, creates directories
- `str_replace` - Substring replacement (single or all occurrences); same-path serialization is scoped to `(sandbox.id, path)` so isolated sandboxes do not contend on identical virtual paths inside one process
### Subagent System (`packages/harness/deerflow/subagents/`)
@@ -271,10 +257,8 @@ Proxied through nginx: `/api/langgraph/*` → Gateway LangGraph-compatible runti
- `present_files` - Make output files visible to user (only `/mnt/user-data/outputs`)
- `ask_clarification` - Request clarification (intercepted by ClarificationMiddleware → interrupts)
- `view_image` - Read image as base64 (added only if model supports vision)
- `setup_agent` - Bootstrap-only: persist a brand-new custom agent's `SOUL.md` and `config.yaml`. Bound only when `is_bootstrap=True`.
- `update_agent` - Custom-agent-only: persist self-updates to the current agent's `SOUL.md` / `config.yaml` from inside a normal chat (partial update + atomic write). Bound when `agent_name` is set and `is_bootstrap=False`.
4. **Subagent tool** (if enabled):
- `task` - Delegate to subagent (description, prompt, subagent_type)
- `task` - Delegate to subagent (description, prompt, subagent_type, max_turns)
**Community tools** (`packages/harness/deerflow/community/`):
- `tavily/` - Web search (5 results default) and web fetch (4KB limit)
@@ -285,7 +269,7 @@ Proxied through nginx: `/api/langgraph/*` → Gateway LangGraph-compatible runti
- `invoke_acp_agent` - Invokes external ACP-compatible agents from `config.yaml`
- ACP launchers must be real ACP adapters. The standard `codex` CLI is not ACP-compatible by itself; configure a wrapper such as `npx -y @zed-industries/codex-acp` or an installed `codex-acp` binary
- Missing ACP executables now return an actionable error message instead of a raw `[Errno 2]`
- Each ACP agent uses a per-thread workspace at `{base_dir}/users/{user_id}/threads/{thread_id}/acp-workspace/`. The workspace is accessible to the lead agent via the virtual path `/mnt/acp-workspace/` (read-only). In docker sandbox mode, the directory is volume-mounted into the container at `/mnt/acp-workspace` (read-only); in local sandbox mode, path translation is handled by `tools.py`
- Each ACP agent uses a per-thread workspace at `{base_dir}/threads/{thread_id}/acp-workspace/`. The workspace is accessible to the lead agent via the virtual path `/mnt/acp-workspace/` (read-only). In docker sandbox mode, the directory is volume-mounted into the container at `/mnt/acp-workspace` (read-only); in local sandbox mode, path translation is handled by `tools.py`
- `image_search/` - Image search via DuckDuckGo
### MCP System (`packages/harness/deerflow/mcp/`)
@@ -322,10 +306,9 @@ Proxied through nginx: `/api/langgraph/*` → Gateway LangGraph-compatible runti
### IM Channels System (`app/channels/`)
Bridges external messaging platforms (Feishu, Slack, Telegram, DingTalk) to the DeerFlow agent via the LangGraph Server.
Bridges external messaging platforms (Feishu, Slack, Telegram) to the DeerFlow agent via the LangGraph Server.
**Architecture**: Channels communicate with Gateway through the `langgraph-sdk` HTTP client (same as the frontend), ensuring threads are created and managed server-side. The internal SDK client injects process-local internal auth plus a matching CSRF cookie/header pair so Gateway accepts state-changing thread/run requests from channel workers without relying on browser session cookies.
**Architecture**: Channels communicate with the LangGraph Server through `langgraph-sdk` HTTP client (same as the frontend), ensuring threads are created and managed server-side.
**Components**:
- `message_bus.py` - Async pub/sub hub (`InboundMessage` → queue → dispatcher; `OutboundMessage` → callbacks → channels)
@@ -333,52 +316,40 @@ Bridges external messaging platforms (Feishu, Slack, Telegram, DingTalk) to the
- `manager.py` - Core dispatcher: creates threads via `client.threads.create()`, routes commands, keeps Slack/Telegram on `client.runs.wait()`, and uses `client.runs.stream(["messages-tuple", "values"])` for Feishu incremental outbound updates
- `base.py` - Abstract `Channel` base class (start/stop/send lifecycle)
- `service.py` - Manages lifecycle of all configured channels from `config.yaml`
- `slack.py` / `feishu.py` / `telegram.py` / `dingtalk.py` - Platform-specific implementations (`feishu.py` tracks the running card `message_id` in memory and patches the same card in place; `dingtalk.py` optionally uses AI Card streaming for in-place updates when `card_template_id` is configured)
- `slack.py` / `feishu.py` / `telegram.py` - Platform-specific implementations (`feishu.py` tracks the running card `message_id` in memory and patches the same card in place)
**Message Flow**:
1. External platform -> Channel impl -> `MessageBus.publish_inbound()`
2. `ChannelManager._dispatch_loop()` consumes from queue
3. For chat: look up/create thread through Gateway's LangGraph-compatible API
3. For chat: look up/create thread on LangGraph Server
4. Feishu chat: `runs.stream()` → accumulate AI text → publish multiple outbound updates (`is_final=False`) → publish final outbound (`is_final=True`)
5. Slack/Telegram chat: `runs.wait()` → extract final response → publish outbound
6. Feishu channel sends one running reply card up front, then patches the same card for each outbound update (card JSON sets `config.update_multi=true` for Feishu's patch API requirement)
7. DingTalk AI Card mode (when `card_template_id` configured): `runs.stream()` → create card with initial text → stream updates via `PUT /v1.0/card/streaming` → finalize on `is_final=True`. Falls back to `sampleMarkdown` if card creation or streaming fails
8. For commands (`/new`, `/status`, `/models`, `/memory`, `/help`): handle locally or query Gateway API
9. Outbound → channel callbacks → platform reply
7. For commands (`/new`, `/status`, `/models`, `/memory`, `/help`): handle locally or query Gateway API
8. Outbound → channel callbacks → platform reply
**Configuration** (`config.yaml` -> `channels`):
- `langgraph_url` - LangGraph-compatible Gateway API base URL (default: `http://localhost:8001/api`)
- `langgraph_url` - LangGraph Server URL (default: `http://localhost:2024`)
- `gateway_url` - Gateway API URL for auxiliary commands (default: `http://localhost:8001`)
- In Docker Compose, IM channels run inside the `gateway` container, so `localhost` points back to that container. Use `http://gateway:8001/api` for `langgraph_url` and `http://gateway:8001` for `gateway_url`, or set `DEER_FLOW_CHANNELS_LANGGRAPH_URL` / `DEER_FLOW_CHANNELS_GATEWAY_URL`.
- Per-channel configs: `feishu` (app_id, app_secret), `slack` (bot_token, app_token), `telegram` (bot_token), `dingtalk` (client_id, client_secret, optional `card_template_id` for AI Card streaming)
- In Docker Compose, IM channels run inside the `gateway` container, so `localhost` points back to that container. Use `http://langgraph:2024` / `http://gateway:8001`, or set `DEER_FLOW_CHANNELS_LANGGRAPH_URL` / `DEER_FLOW_CHANNELS_GATEWAY_URL`.
- Per-channel configs: `feishu` (app_id, app_secret), `slack` (bot_token, app_token), `telegram` (bot_token)
### Memory System (`packages/harness/deerflow/agents/memory/`)
**Components**:
- `updater.py` - LLM-based memory updates with fact extraction, whitespace-normalized fact deduplication (trims leading/trailing whitespace before comparing), and atomic file I/O
- `queue.py` - Debounced update queue (per-thread deduplication, configurable wait time); captures `user_id` at enqueue time so it survives the `threading.Timer` boundary
- `queue.py` - Debounced update queue (per-thread deduplication, configurable wait time)
- `prompt.py` - Prompt templates for memory updates
- `storage.py` - File-based storage with per-user isolation; cache keyed by `(user_id, agent_name)` tuple
**Per-User Isolation**:
- Memory is stored per-user at `{base_dir}/users/{user_id}/memory.json`
- Per-agent per-user memory at `{base_dir}/users/{user_id}/agents/{agent_name}/memory.json`
- Custom agent definitions (`SOUL.md` + `config.yaml`) are also per-user at `{base_dir}/users/{user_id}/agents/{agent_name}/`. The legacy shared layout `{base_dir}/agents/{agent_name}/` remains read-only fallback for unmigrated installations
- `user_id` is resolved via `get_effective_user_id()` from `deerflow.runtime.user_context`
- In no-auth mode, `user_id` defaults to `"default"` (constant `DEFAULT_USER_ID`)
- Absolute `storage_path` in config opts out of per-user isolation
- **Migration**: Run `PYTHONPATH=. python scripts/migrate_user_isolation.py` to move legacy `memory.json`, `threads/`, and `agents/` into per-user layout. Supports `--dry-run` (preview changes) and `--user-id USER_ID` (assign unowned legacy data to a user, defaults to `default`).
**Data Structure** (stored in `{base_dir}/users/{user_id}/memory.json`):
**Data Structure** (stored in `backend/.deer-flow/memory.json`):
- **User Context**: `workContext`, `personalContext`, `topOfMind` (1-3 sentence summaries)
- **History**: `recentMonths`, `earlierContext`, `longTermBackground`
- **Facts**: Discrete facts with `id`, `content`, `category` (preference/knowledge/context/behavior/goal), `confidence` (0-1), `createdAt`, `source`
**Workflow**:
1. `MemoryMiddleware` filters messages (user inputs + final AI responses), captures `user_id` via `get_effective_user_id()`, and queues conversation with the captured `user_id`
1. `MemoryMiddleware` filters messages (user inputs + final AI responses) and queues conversation
2. Queue debounces (30s default), batches updates, deduplicates per-thread
3. Background thread invokes LLM to extract context updates and facts, using the stored `user_id` (not the contextvar, which is unavailable on timer threads)
3. Background thread invokes LLM to extract context updates and facts
4. Applies updates atomically (temp file + rename) with cache invalidation, skipping duplicate fact content before append
5. Next interaction injects top 15 facts + context into `<memory>` tags in system prompt
@@ -386,7 +357,7 @@ Focused regression coverage for the updater lives in `backend/tests/test_memory_
**Configuration** (`config.yaml``memory`):
- `enabled` / `injection_enabled` - Master switches
- `storage_path` - Path to memory.json (absolute path opts out of per-user isolation)
- `storage_path` - Path to memory.json
- `debounce_seconds` - Wait time before processing (default: 30)
- `model_name` - LLM for updates (null = default model)
- `max_facts` / `fact_confidence_threshold` - Fact storage limits (100 / 0.7)
@@ -421,9 +392,9 @@ Both can be modified at runtime via Gateway API endpoints or `DeerFlowClient` me
`DeerFlowClient` provides direct in-process access to all DeerFlow capabilities without HTTP services. All return types align with the Gateway API response schemas, so consumer code works identically in HTTP and embedded modes.
**Architecture**: Imports the same `deerflow` modules that Gateway API uses. Shares the same config files and data directories. No FastAPI dependency.
**Architecture**: Imports the same `deerflow` modules that LangGraph Server and Gateway API use. Shares the same config files and data directories. No FastAPI dependency.
**Agent Conversation**:
**Agent Conversation** (replaces LangGraph Server):
- `chat(message, thread_id)` — synchronous, accumulates streaming deltas per message-id and returns the final AI text
- `stream(message, thread_id)` — subscribes to LangGraph `stream_mode=["values", "messages", "custom"]` and yields `StreamEvent`:
- `"values"` — full state snapshot (title, messages, artifacts); AI text already delivered via `messages` mode is **not** re-synthesized here to avoid duplicate deliveries
@@ -486,15 +457,20 @@ This starts all services and makes the application available at `http://localhos
| | **Local Foreground** | **Local Daemon** | **Docker Dev** | **Docker Prod** |
|---|---|---|---|---|
| **Dev** | `./scripts/serve.sh --dev`<br/>`make dev` | `./scripts/serve.sh --dev --daemon`<br/>`make dev-daemon` | `./scripts/docker.sh start`<br/>`make docker-start` | — |
| **Dev + Gateway** | `./scripts/serve.sh --dev --gateway`<br/>`make dev-pro` | `./scripts/serve.sh --dev --gateway --daemon`<br/>`make dev-daemon-pro` | `./scripts/docker.sh start --gateway`<br/>`make docker-start-pro` | — |
| **Prod** | `./scripts/serve.sh --prod`<br/>`make start` | `./scripts/serve.sh --prod --daemon`<br/>`make start-daemon` | — | `./scripts/deploy.sh`<br/>`make up` |
| **Prod + Gateway** | `./scripts/serve.sh --prod --gateway`<br/>`make start-pro` | `./scripts/serve.sh --prod --gateway --daemon`<br/>`make start-daemon-pro` | — | `./scripts/deploy.sh --gateway`<br/>`make up-pro` |
| Action | Local | Docker Dev | Docker Prod |
|---|---|---|---|
| **Stop** | `./scripts/serve.sh --stop`<br/>`make stop` | `./scripts/docker.sh stop`<br/>`make docker-stop` | `./scripts/deploy.sh down`<br/>`make down` |
| **Restart** | `./scripts/serve.sh --restart [flags]` | `./scripts/docker.sh restart` | — |
Gateway mode embeds the agent runtime in Gateway, no LangGraph server.
**Nginx routing**:
- `/api/langgraph/*`Gateway embedded runtime (8001), rewritten to `/api/*`
- Standard mode: `/api/langgraph/*`LangGraph Server (2024)
- Gateway mode: `/api/langgraph/*` → Gateway embedded runtime (8001) (via envsubst)
- `/api/*` (other) → Gateway API (8001)
- `/` (non-API) → Frontend (3000)
@@ -503,11 +479,15 @@ This starts all services and makes the application available at `http://localhos
From the **backend** directory:
```bash
# Gateway API
# Terminal 1: LangGraph server
make dev
# Terminal 2: Gateway API
make gateway
```
Direct access (without nginx):
- LangGraph: `http://localhost:2024`
- Gateway: `http://localhost:8001`
### Frontend Configuration
@@ -528,7 +508,6 @@ Multi-file upload with automatic document conversion:
- Rejects directory inputs before copying so uploads stay all-or-nothing
- Reuses one conversion worker per request when called from an active event loop
- Files stored in thread-isolated directories
- Duplicate filenames in a single upload request are auto-renamed with `_N` suffixes so later files do not truncate earlier files
- Agent receives uploaded file list via `UploadsMiddleware`
See [docs/FILE_UPLOAD.md](docs/FILE_UPLOAD.md) for details.
+4 -1
View File
@@ -56,8 +56,11 @@ export OPENAI_API_KEY="your-api-key"
### Run the Development Server
```bash
# Gateway API + embedded agent runtime
# Terminal 1: LangGraph server
make dev
# Terminal 2: Gateway API
make gateway
```
## Project Structure
+1 -15
View File
@@ -13,9 +13,6 @@ FROM python:3.12-slim-bookworm AS builder
ARG NODE_MAJOR=22
ARG APT_MIRROR
ARG UV_INDEX_URL
# Optional extras to install (e.g. "postgres" for PostgreSQL support)
# Usage: docker build --build-arg UV_EXTRAS=postgres ...
ARG UV_EXTRAS
# Optionally override apt mirror for restricted networks (e.g. APT_MIRROR=mirrors.aliyun.com)
RUN if [ -n "${APT_MIRROR}" ]; then \
@@ -46,15 +43,8 @@ WORKDIR /app
COPY backend ./backend
# Install dependencies with cache mount
# When UV_EXTRAS is set (e.g. "postgres"), installs optional dependencies.
RUN --mount=type=cache,target=/root/.cache/uv \
sh -c "cd backend && UV_INDEX_URL=${UV_INDEX_URL:-https://pypi.org/simple} uv sync ${UV_EXTRAS:+--extra $UV_EXTRAS}"
# UTF-8 locale prevents UnicodeEncodeError on Chinese/emoji content in minimal
# containers where locale configuration may be missing and the default encoding is not UTF-8.
ENV LANG=C.UTF-8
ENV LC_ALL=C.UTF-8
ENV PYTHONIOENCODING=utf-8
sh -c "cd backend && UV_INDEX_URL=${UV_INDEX_URL:-https://pypi.org/simple} uv sync"
# ── Stage 2: Dev ──────────────────────────────────────────────────────────────
# Retains compiler toolchain from builder so startup-time `uv sync` can build
@@ -72,10 +62,6 @@ CMD ["sh", "-c", "cd backend && PYTHONPATH=. uv run uvicorn app.gateway.app:app
# Clean image without build-essential — reduces size (~200 MB) and attack surface.
FROM python:3.12-slim-bookworm
ENV LANG=C.UTF-8
ENV LC_ALL=C.UTF-8
ENV PYTHONIOENCODING=utf-8
# Copy Node.js runtime from builder (provides npx for MCP servers)
COPY --from=builder /usr/bin/node /usr/bin/node
COPY --from=builder /usr/lib/node_modules /usr/lib/node_modules
+1 -1
View File
@@ -2,7 +2,7 @@ install:
uv sync
dev:
PYTHONPATH=. uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001 --reload
uv run langgraph dev --no-browser --no-reload --n-jobs-per-worker 10
gateway:
PYTHONPATH=. uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001
+33 -29
View File
@@ -11,26 +11,31 @@ DeerFlow is a LangGraph-based AI super agent with sandbox execution, persistent
│ Nginx (Port 2026) │
│ Unified reverse proxy │
└───────┬──────────────────┬───────────┘
/api/langgraph/* │ /api/* (other)
rewritten to /api/* │
┌────────────────────────────────────────┐
Gateway API (8001)
FastAPI REST + agent runtime
Models, MCP, Skills, Memory, Uploads, │
Artifacts, Threads, Runs, Streaming
┌────────────────────────────────────┐
│ │ Lead Agent │ │
│ │ Middleware Chain, Tools, Subagents │ │
└────────────────────────────────────┘
└────────────────────────────────────────
/api/langgraph/* │ /api/* (other)
▼ ▼
┌────────────────────┐ ┌────────────────────────┐
│ LangGraph Server │ │ Gateway API (8001) │
(Port 2024) │ FastAPI REST
│ │
┌────────────────┐ │ │ Models, MCP, Skills,
│ Lead Agent │ │ │ Memory, Uploads,
│ ┌──────────┐ │ │ │ Artifacts
│ │Middleware│ │ │ └────────────────────────┘
│ │ Chain │ │
│ │ └──────────┘ │ │
│ │ ┌──────────┐ │ │
│ │ Tools │ │
│ │ └──────────┘ │ │
│ │ ┌──────────┐ │ │
│ │ │Subagents │ │ │
│ │ └──────────┘ │ │
│ └────────────────┘ │
└────────────────────┘
```
**Request Routing** (via Nginx):
- `/api/langgraph/*` Gateway LangGraph-compatible API - agent interactions, threads, streaming
- `/api/langgraph/*` → LangGraph Server - agent interactions, threads, streaming
- `/api/*` (other) → Gateway API - models, MCP, skills, memory, artifacts, uploads, thread-local cleanup
- `/` (non-API) → Frontend - Next.js web interface
@@ -74,7 +79,7 @@ Per-thread isolated execution with virtual path translation:
- **Skills path**: `/mnt/skills``deer-flow/skills/` directory
- **Skills loading**: Recursively discovers nested `SKILL.md` files under `skills/{public,custom}` and preserves nested container paths
- **File-write safety**: `str_replace` serializes read-modify-write per `(sandbox.id, path)` so isolated sandboxes keep concurrency even when virtual paths match
- **Tools**: `bash`, `ls`, `read_file`, `write_file`, `str_replace` (`write_file` overwrites by default and exposes `append` for end-of-file writes; `bash` is disabled by default when using `LocalSandboxProvider`; use `AioSandboxProvider` for isolated shell access)
- **Tools**: `bash`, `ls`, `read_file`, `write_file`, `str_replace` (`bash` is disabled by default when using `LocalSandboxProvider`; use `AioSandboxProvider` for isolated shell access)
### Subagent System
@@ -119,7 +124,7 @@ FastAPI application providing REST endpoints for frontend integration:
| `POST /api/memory/reload` | Force memory reload |
| `GET /api/memory/config` | Memory configuration |
| `GET /api/memory/status` | Combined config + data |
| `POST /api/threads/{id}/uploads` | Upload files (auto-converts PDF/PPT/Excel/Word to Markdown, rejects directory paths, auto-renames duplicate filenames in one request) |
| `POST /api/threads/{id}/uploads` | Upload files (auto-converts PDF/PPT/Excel/Word to Markdown, rejects directory paths) |
| `GET /api/threads/{id}/uploads/list` | List uploaded files |
| `DELETE /api/threads/{id}` | Delete DeerFlow-managed local thread data after LangGraph thread deletion; unexpected failures are logged server-side and return a generic 500 detail |
| `GET /api/threads/{id}/artifacts/{path}` | Serve generated artifacts |
@@ -188,7 +193,7 @@ export OPENAI_API_KEY="your-api-key-here"
**Full Application** (from project root):
```bash
make dev # Starts Gateway + Frontend + Nginx
make dev # Starts LangGraph + Gateway + Frontend + Nginx
```
Access at: http://localhost:2026
@@ -196,11 +201,14 @@ Access at: http://localhost:2026
**Backend Only** (from backend directory):
```bash
# Gateway API + embedded agent runtime
# Terminal 1: LangGraph server
make dev
# Terminal 2: Gateway API
make gateway
```
Direct access: Gateway at http://localhost:8001
Direct access: LangGraph at http://localhost:2024, Gateway at http://localhost:8001
---
@@ -236,16 +244,12 @@ backend/
│ └── utils/ # Utilities
├── docs/ # Documentation
├── tests/ # Test suite
├── langgraph.json # LangGraph graph registry for tooling/Studio compatibility
├── langgraph.json # LangGraph server configuration
├── pyproject.toml # Python dependencies
├── Makefile # Development commands
└── Dockerfile # Container build
```
`langgraph.json` is not the default service entrypoint. The scripts and Docker
deployments run the Gateway embedded runtime; the file is kept for LangGraph
tooling, Studio, or direct LangGraph Server compatibility.
---
## Configuration
@@ -358,8 +362,8 @@ If a provider is explicitly enabled but required credentials are missing, or the
```bash
make install # Install dependencies
make dev # Run Gateway API + embedded agent runtime (port 8001)
make gateway # Run Gateway API without reload (port 8001)
make dev # Run LangGraph server (port 2024)
make gateway # Run Gateway API (port 8001)
make lint # Run linter (ruff)
make format # Format code (ruff)
```
+1 -1
View File
@@ -2,7 +2,7 @@
Provides a pluggable channel system that connects external messaging platforms
(Feishu/Lark, Slack, Telegram) to the DeerFlow agent via the ChannelManager,
which uses ``langgraph-sdk`` to communicate with Gateway's LangGraph-compatible API.
which uses ``langgraph-sdk`` to communicate with the underlying LangGraph Server.
"""
from app.channels.base import Channel
-4
View File
@@ -31,10 +31,6 @@ class Channel(ABC):
def is_running(self) -> bool:
return self._running
@property
def supports_streaming(self) -> bool:
return False
# -- lifecycle ---------------------------------------------------------
@abstractmethod
-740
View File
@@ -1,740 +0,0 @@
"""DingTalk channel implementation."""
from __future__ import annotations
import asyncio
import json
import logging
import re
import threading
import time
from pathlib import Path
from typing import Any
import httpx
from app.channels.base import Channel
from app.channels.commands import KNOWN_CHANNEL_COMMANDS
from app.channels.message_bus import InboundMessage, InboundMessageType, MessageBus, OutboundMessage, ResolvedAttachment
logger = logging.getLogger(__name__)
DINGTALK_API_BASE = "https://api.dingtalk.com"
_TOKEN_REFRESH_MARGIN_SECONDS = 300
_CONVERSATION_TYPE_P2P = "1"
_CONVERSATION_TYPE_GROUP = "2"
_MAX_UPLOAD_SIZE_BYTES = 20 * 1024 * 1024
def _normalize_conversation_type(raw: Any) -> str:
"""Normalize ``conversationType`` to ``"1"`` (P2P) or ``"2"`` (group).
Stream payloads may send int or string values.
"""
if raw is None:
return _CONVERSATION_TYPE_P2P
s = str(raw).strip()
if s == _CONVERSATION_TYPE_GROUP:
return _CONVERSATION_TYPE_GROUP
return _CONVERSATION_TYPE_P2P
def _normalize_allowed_users(allowed_users: Any) -> set[str]:
if allowed_users is None:
return set()
if isinstance(allowed_users, str):
values = [allowed_users]
elif isinstance(allowed_users, (list, tuple, set)):
values = allowed_users
else:
logger.warning(
"DingTalk allowed_users should be a list of user IDs; treating %s as one string value",
type(allowed_users).__name__,
)
values = [allowed_users]
return {str(uid) for uid in values if str(uid)}
def _is_dingtalk_command(text: str) -> bool:
if not text.startswith("/"):
return False
return text.split(maxsplit=1)[0].lower() in KNOWN_CHANNEL_COMMANDS
def _extract_text_from_rich_text(rich_text_list: list) -> str:
parts: list[str] = []
for item in rich_text_list:
if isinstance(item, dict) and "text" in item:
parts.append(item["text"])
return " ".join(parts)
_FENCED_CODE_BLOCK_RE = re.compile(r"```(\w*)\n(.*?)```", re.DOTALL)
_INLINE_CODE_RE = re.compile(r"`([^`\n]+)`")
_HORIZONTAL_RULE_RE = re.compile(r"^-{3,}$", re.MULTILINE)
_TABLE_SEPARATOR_RE = re.compile(r"^\|[-:| ]+\|$", re.MULTILINE)
def _convert_markdown_table(text: str) -> str:
# DingTalk sampleMarkdown does not render pipe-delimited tables.
lines = text.split("\n")
result: list[str] = []
i = 0
while i < len(lines):
line = lines[i]
# Detect table: header row followed by separator row
if i + 1 < len(lines) and line.strip().startswith("|") and _TABLE_SEPARATOR_RE.match(lines[i + 1].strip()):
headers = [h.strip() for h in line.strip().strip("|").split("|")]
i += 2 # skip header + separator
while i < len(lines) and lines[i].strip().startswith("|"):
cells = [c.strip() for c in lines[i].strip().strip("|").split("|")]
for h, c in zip(headers, cells):
result.append(f"> **{h}**: {c}")
result.append("")
i += 1
else:
result.append(line)
i += 1
return "\n".join(result)
def _adapt_markdown_for_dingtalk(text: str) -> str:
"""Adapt markdown for DingTalk's limited sampleMarkdown renderer."""
def _code_block_to_quote(match: re.Match) -> str:
lang = match.group(1)
code = match.group(2).rstrip("\n")
prefix = f"> **{lang}**\n" if lang else ""
quoted_lines = "\n".join(f"> {line}" for line in code.split("\n"))
return f"{prefix}{quoted_lines}\n"
text = _FENCED_CODE_BLOCK_RE.sub(_code_block_to_quote, text)
text = _INLINE_CODE_RE.sub(r"**\1**", text)
text = _convert_markdown_table(text)
text = _HORIZONTAL_RULE_RE.sub("───────────", text)
return text
class DingTalkChannel(Channel):
"""DingTalk IM channel using Stream Push (WebSocket, no public IP needed)."""
def __init__(self, bus: MessageBus, config: dict[str, Any]) -> None:
super().__init__(name="dingtalk", bus=bus, config=config)
self._thread: threading.Thread | None = None
self._main_loop: asyncio.AbstractEventLoop | None = None
self._client_id: str = ""
self._client_secret: str = ""
self._allowed_users: set[str] = _normalize_allowed_users(config.get("allowed_users"))
self._cached_token: str = ""
self._token_expires_at: float = 0.0
self._token_lock = asyncio.Lock()
self._card_template_id: str = config.get("card_template_id", "")
self._card_track_ids: dict[str, str] = {}
self._dingtalk_client: Any = None
self._stream_client: Any = None
self._incoming_messages: dict[str, Any] = {}
self._incoming_messages_lock = threading.Lock()
self._card_repliers: dict[str, Any] = {}
@property
def supports_streaming(self) -> bool:
return bool(self._card_template_id)
async def start(self) -> None:
if self._running:
return
try:
import dingtalk_stream # noqa: F401
except ImportError:
logger.error("dingtalk-stream is not installed. Install it with: uv add dingtalk-stream")
return
client_id = self.config.get("client_id", "")
client_secret = self.config.get("client_secret", "")
if not client_id or not client_secret:
logger.error("DingTalk channel requires client_id and client_secret")
return
self._client_id = client_id
self._client_secret = client_secret
self._main_loop = asyncio.get_running_loop()
if self._card_template_id:
logger.info("[DingTalk] AI Card mode enabled (template=%s)", self._card_template_id)
self._running = True
self.bus.subscribe_outbound(self._on_outbound)
self._thread = threading.Thread(
target=self._run_stream,
args=(client_id, client_secret),
daemon=True,
)
self._thread.start()
logger.info("DingTalk channel started")
async def stop(self) -> None:
self._running = False
self.bus.unsubscribe_outbound(self._on_outbound)
stream_client = self._stream_client
if stream_client is not None:
try:
if hasattr(stream_client, "disconnect"):
stream_client.disconnect()
except Exception:
logger.debug("[DingTalk] error disconnecting stream client", exc_info=True)
self._dingtalk_client = None
self._stream_client = None
with self._incoming_messages_lock:
self._incoming_messages.clear()
self._card_repliers.clear()
self._card_track_ids.clear()
if self._thread:
self._thread.join(timeout=5)
self._thread = None
logger.info("DingTalk channel stopped")
def _resolve_routing(self, msg: OutboundMessage) -> tuple[str, str, str]:
"""Return (conversation_type, sender_staff_id, conversation_id).
Uses msg.chat_id as the primary routing key; metadata as fallback.
"""
conversation_type = _normalize_conversation_type(msg.metadata.get("conversation_type"))
sender_staff_id = msg.metadata.get("sender_staff_id", "")
conversation_id = msg.metadata.get("conversation_id", "")
if conversation_type == _CONVERSATION_TYPE_GROUP:
conversation_id = msg.chat_id or conversation_id
else:
sender_staff_id = msg.chat_id or sender_staff_id
return conversation_type, sender_staff_id, conversation_id
async def send(self, msg: OutboundMessage, *, _max_retries: int = 3) -> None:
conversation_type, sender_staff_id, conversation_id = self._resolve_routing(msg)
robot_code = self._client_id
# Card mode: stream update to existing AI card
source_key = self._make_card_source_key_from_outbound(msg)
out_track_id = self._card_track_ids.get(source_key)
# ``card_template_id`` enables ``runs.stream`` (non-final + final outbounds).
# If card creation failed, skip non-final chunks to avoid duplicate messages.
if self._card_template_id and not out_track_id and not msg.is_final:
return
if out_track_id:
try:
await self._stream_update_card(
out_track_id,
msg.text,
is_finalize=msg.is_final,
)
except Exception:
logger.warning("[DingTalk] card stream failed, falling back to sampleMarkdown")
if msg.is_final:
self._card_track_ids.pop(source_key, None)
self._card_repliers.pop(out_track_id, None)
await self._send_markdown_fallback(robot_code, conversation_type, sender_staff_id, conversation_id, msg.text)
return
if msg.is_final:
self._card_track_ids.pop(source_key, None)
self._card_repliers.pop(out_track_id, None)
return
# Non-card mode: send sampleMarkdown with retry
last_exc: Exception | None = None
for attempt in range(_max_retries):
try:
if conversation_type == _CONVERSATION_TYPE_GROUP:
await self._send_group_message(robot_code, conversation_id, msg.text, at_user_ids=[sender_staff_id] if sender_staff_id else None)
else:
await self._send_p2p_message(robot_code, sender_staff_id, msg.text)
return
except Exception as exc:
last_exc = exc
if attempt < _max_retries - 1:
delay = 2**attempt
logger.warning(
"[DingTalk] send failed (attempt %d/%d), retrying in %ds: %s",
attempt + 1,
_max_retries,
delay,
exc,
)
await asyncio.sleep(delay)
logger.error("[DingTalk] send failed after %d attempts: %s", _max_retries, last_exc)
if last_exc is None:
raise RuntimeError("DingTalk send failed without an exception from any attempt")
raise last_exc
async def _send_markdown_fallback(
self,
robot_code: str,
conversation_type: str,
sender_staff_id: str,
conversation_id: str,
text: str,
) -> None:
try:
if conversation_type == _CONVERSATION_TYPE_GROUP:
await self._send_group_message(robot_code, conversation_id, text)
else:
await self._send_p2p_message(robot_code, sender_staff_id, text)
except Exception:
logger.exception("[DingTalk] markdown fallback also failed")
raise
async def send_file(self, msg: OutboundMessage, attachment: ResolvedAttachment) -> bool:
if attachment.size > _MAX_UPLOAD_SIZE_BYTES:
logger.warning("[DingTalk] file too large (%d bytes), skipping: %s", attachment.size, attachment.filename)
return False
conversation_type, sender_staff_id, conversation_id = self._resolve_routing(msg)
robot_code = self._client_id
try:
media_id = await self._upload_media(attachment.actual_path, "image" if attachment.is_image else "file")
if not media_id:
return False
if attachment.is_image:
msg_key = "sampleImageMsg"
msg_param = json.dumps({"photoURL": media_id})
else:
msg_key = "sampleFile"
msg_param = json.dumps(
{
"fileUrl": media_id,
"fileName": attachment.filename,
"fileSize": str(attachment.size),
}
)
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(30.0)) as client:
if conversation_type == _CONVERSATION_TYPE_GROUP:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/groupMessages/send",
headers=self._api_headers(token),
json={
"msgKey": msg_key,
"msgParam": msg_param,
"robotCode": robot_code,
"openConversationId": conversation_id,
},
)
else:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/oToMessages/batchSend",
headers=self._api_headers(token),
json={
"msgKey": msg_key,
"msgParam": msg_param,
"robotCode": robot_code,
"userIds": [sender_staff_id],
},
)
response.raise_for_status()
logger.info("[DingTalk] file sent: %s", attachment.filename)
return True
except (httpx.HTTPError, OSError, ValueError, TypeError, AttributeError):
logger.exception("[DingTalk] failed to send file: %s", attachment.filename)
return False
# -- stream client (runs in dedicated thread) --------------------------
def _run_stream(self, client_id: str, client_secret: str) -> None:
try:
import dingtalk_stream
credential = dingtalk_stream.Credential(client_id, client_secret)
client = dingtalk_stream.DingTalkStreamClient(credential)
self._stream_client = client
client.register_callback_handler(
dingtalk_stream.chatbot.ChatbotMessage.TOPIC,
_DingTalkMessageHandler(self),
)
client.start_forever()
except Exception:
if self._running:
logger.exception("DingTalk Stream Push error")
finally:
self._stream_client = None
def _on_chatbot_message(self, message: Any) -> None:
if not self._running:
return
try:
sender_staff_id = message.sender_staff_id or ""
conversation_type = _normalize_conversation_type(message.conversation_type)
conversation_id = message.conversation_id or ""
msg_id = message.message_id or ""
sender_nick = message.sender_nick or ""
if self._allowed_users and sender_staff_id not in self._allowed_users:
logger.debug("[DingTalk] ignoring message from non-allowed user: %s", sender_staff_id)
return
text = self._extract_text(message)
if not text:
logger.info("[DingTalk] empty text, ignoring message")
return
logger.info(
"[DingTalk] parsed message: conv_type=%s, msg_id=%s, sender=%s(%s), text=%r",
conversation_type,
msg_id,
sender_staff_id,
sender_nick,
text[:100],
)
if _is_dingtalk_command(text):
msg_type = InboundMessageType.COMMAND
else:
msg_type = InboundMessageType.CHAT
# P2P: topic_id=None (single thread per user, like Telegram private chat)
# Group: topic_id=msg_id (each new message starts a new topic, like Feishu)
topic_id: str | None = msg_id if conversation_type == _CONVERSATION_TYPE_GROUP else None
# chat_id uses conversation_id for groups, sender_staff_id for P2P
chat_id = conversation_id if conversation_type == _CONVERSATION_TYPE_GROUP else sender_staff_id
inbound = self._make_inbound(
chat_id=chat_id,
user_id=sender_staff_id,
text=text,
msg_type=msg_type,
thread_ts=msg_id,
metadata={
"conversation_type": conversation_type,
"conversation_id": conversation_id,
"sender_staff_id": sender_staff_id,
"sender_nick": sender_nick,
"message_id": msg_id,
},
)
inbound.topic_id = topic_id
if self._card_template_id:
source_key = self._make_card_source_key(inbound)
with self._incoming_messages_lock:
self._incoming_messages[source_key] = message
if self._main_loop and self._main_loop.is_running():
logger.info("[DingTalk] publishing inbound message to bus (type=%s, msg_id=%s)", msg_type.value, msg_id)
fut = asyncio.run_coroutine_threadsafe(
self._prepare_inbound(chat_id, inbound),
self._main_loop,
)
fut.add_done_callback(lambda f, mid=msg_id: self._log_future_error(f, "prepare_inbound", mid))
else:
logger.warning("[DingTalk] main loop not running, cannot publish inbound message")
except Exception:
logger.exception("[DingTalk] error processing chatbot message")
@staticmethod
def _extract_text(message: Any) -> str:
msg_type = message.message_type
if msg_type == "text" and message.text:
return message.text.content.strip()
if msg_type == "richText" and message.rich_text_content:
return _extract_text_from_rich_text(message.rich_text_content.rich_text_list).strip()
return ""
async def _prepare_inbound(self, chat_id: str, inbound: InboundMessage) -> None:
# Running reply must finish before publish_inbound so AI card tracks are
# registered before the manager emits streaming outbounds.
await self._send_running_reply(chat_id, inbound)
await self.bus.publish_inbound(inbound)
async def _send_running_reply(self, chat_id: str, inbound: InboundMessage) -> None:
conversation_type = inbound.metadata.get("conversation_type", _CONVERSATION_TYPE_P2P)
sender_staff_id = inbound.metadata.get("sender_staff_id", "")
conversation_id = inbound.metadata.get("conversation_id", "")
text = "\u23f3 Working on it..."
try:
if self._card_template_id:
source_key = self._make_card_source_key(inbound)
with self._incoming_messages_lock:
chatbot_message = self._incoming_messages.pop(source_key, None)
out_track_id = await self._create_and_deliver_card(
text,
chatbot_message=chatbot_message,
)
if out_track_id:
self._card_track_ids[source_key] = out_track_id
logger.info("[DingTalk] AI card running reply sent for chat=%s", chat_id)
return
robot_code = self._client_id
if conversation_type == _CONVERSATION_TYPE_GROUP:
await self._send_text_message_to_group(robot_code, conversation_id, text)
else:
await self._send_text_message_to_user(robot_code, sender_staff_id, text)
logger.info("[DingTalk] 'Working on it...' reply sent for chat=%s", chat_id)
except Exception:
logger.exception("[DingTalk] failed to send running reply for chat=%s", chat_id)
# -- DingTalk API helpers ----------------------------------------------
async def _get_access_token(self) -> str:
if self._cached_token and time.monotonic() < self._token_expires_at:
return self._cached_token
async with self._token_lock:
if self._cached_token and time.monotonic() < self._token_expires_at:
return self._cached_token
async with httpx.AsyncClient(timeout=httpx.Timeout(10.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/oauth2/accessToken",
json={"appKey": self._client_id, "appSecret": self._client_secret}, # DingTalk API field names
)
response.raise_for_status()
data = response.json()
if not isinstance(data, dict):
raise ValueError(f"DingTalk access token response must be a JSON object, got {type(data).__name__}")
access_token = data.get("accessToken")
if not isinstance(access_token, str) or not access_token.strip():
raise ValueError("DingTalk access token response did not contain a usable accessToken")
raw_expires_in = data.get("expireIn", 7200)
try:
expires_in = int(raw_expires_in)
except (TypeError, ValueError):
logger.warning("[DingTalk] invalid expireIn value %r, using default 7200s", raw_expires_in)
expires_in = 7200
self._cached_token = access_token.strip()
self._token_expires_at = time.monotonic() + expires_in - _TOKEN_REFRESH_MARGIN_SECONDS
return self._cached_token
@staticmethod
def _api_headers(token: str) -> dict[str, str]:
return {
"x-acs-dingtalk-access-token": token,
"Content-Type": "application/json",
}
async def _send_text_message_to_user(self, robot_code: str, user_id: str, text: str) -> None:
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(30.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/oToMessages/batchSend",
headers=self._api_headers(token),
json={
"msgKey": "sampleText",
"msgParam": json.dumps({"content": text}),
"robotCode": robot_code,
"userIds": [user_id],
},
)
response.raise_for_status()
async def _send_text_message_to_group(self, robot_code: str, conversation_id: str, text: str) -> None:
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(30.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/groupMessages/send",
headers=self._api_headers(token),
json={
"msgKey": "sampleText",
"msgParam": json.dumps({"content": text}),
"robotCode": robot_code,
"openConversationId": conversation_id,
},
)
response.raise_for_status()
async def _send_p2p_message(self, robot_code: str, user_id: str, text: str) -> None:
text = _adapt_markdown_for_dingtalk(text)
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(30.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/oToMessages/batchSend",
headers=self._api_headers(token),
json={
"msgKey": "sampleMarkdown",
"msgParam": json.dumps({"title": "DeerFlow", "text": text}),
"robotCode": robot_code,
"userIds": [user_id],
},
)
response.raise_for_status()
data = response.json()
if data.get("processQueryKey"):
logger.info("[DingTalk] P2P message sent to user=%s", user_id)
else:
logger.warning("[DingTalk] P2P send response: %s", data)
async def _send_group_message(
self,
robot_code: str,
conversation_id: str,
text: str,
*,
at_user_ids: list[str] | None = None, # noqa: ARG002
) -> None:
# at_user_ids accepted for call-site compatibility but not passed to the API
# (sampleMarkdown does not support @mentions).
text = _adapt_markdown_for_dingtalk(text)
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(30.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/robot/groupMessages/send",
headers=self._api_headers(token),
json={
"msgKey": "sampleMarkdown",
"msgParam": json.dumps({"title": "DeerFlow", "text": text}),
"robotCode": robot_code,
"openConversationId": conversation_id,
},
)
response.raise_for_status()
data = response.json()
if data.get("processQueryKey"):
logger.info("[DingTalk] group message sent to conversation=%s", conversation_id)
else:
logger.warning("[DingTalk] group send response: %s", data)
# -- AI Card streaming helpers -------------------------------------------
def _make_card_source_key(self, inbound: InboundMessage) -> str:
m = inbound.metadata
return f"{m.get('conversation_type', '')}:{m.get('sender_staff_id', '')}:{m.get('conversation_id', '')}:{m.get('message_id', '')}"
def _make_card_source_key_from_outbound(self, msg: OutboundMessage) -> str:
m = msg.metadata
correlation_id = m.get("message_id") or msg.thread_ts or ""
return f"{m.get('conversation_type', '')}:{m.get('sender_staff_id', '')}:{m.get('conversation_id', '')}:{correlation_id}"
async def _create_and_deliver_card(
self,
initial_text: str,
*,
chatbot_message: Any = None,
) -> str | None:
if self._dingtalk_client is None or chatbot_message is None:
logger.warning("[DingTalk] SDK client or chatbot_message unavailable, skipping AI card")
return None
try:
from dingtalk_stream.card_replier import AICardReplier
except ImportError:
logger.warning("[DingTalk] dingtalk-stream card_replier not available")
return None
try:
replier = AICardReplier(self._dingtalk_client, chatbot_message)
card_instance_id = await replier.async_create_and_deliver_card(
card_template_id=self._card_template_id,
card_data={"content": initial_text},
)
if not card_instance_id:
return None
self._card_repliers[card_instance_id] = replier
logger.info("[DingTalk] AI card created: outTrackId=%s", card_instance_id)
return card_instance_id
except Exception:
logger.exception("[DingTalk] failed to create AI card")
return None
async def _stream_update_card(
self,
out_track_id: str,
content: str,
*,
is_finalize: bool = False,
is_error: bool = False,
) -> None:
replier = self._card_repliers.get(out_track_id)
if not replier:
raise RuntimeError(f"No AICardReplier found for track ID {out_track_id}")
await replier.async_streaming(
card_instance_id=out_track_id,
content_key="content",
content_value=content,
append=False,
finished=is_finalize,
failed=is_error,
)
# -- media upload --------------------------------------------------------
async def _upload_media(self, file_path: str | Path, media_type: str) -> str | None:
try:
file_bytes = await asyncio.to_thread(Path(file_path).read_bytes)
token = await self._get_access_token()
async with httpx.AsyncClient(timeout=httpx.Timeout(60.0)) as client:
response = await client.post(
f"{DINGTALK_API_BASE}/v1.0/files/upload",
headers={"x-acs-dingtalk-access-token": token},
files={"file": ("upload", file_bytes)},
data={"type": media_type},
)
response.raise_for_status()
try:
payload = response.json()
except json.JSONDecodeError:
logger.exception("[DingTalk] failed to decode upload response JSON: %s", file_path)
return None
if not isinstance(payload, dict):
logger.warning("[DingTalk] unexpected upload response type %s for %s", type(payload).__name__, file_path)
return None
return payload.get("mediaId")
except (httpx.HTTPError, OSError):
logger.exception("[DingTalk] failed to upload media: %s", file_path)
return None
@staticmethod
def _log_future_error(fut: Any, name: str, msg_id: str) -> None:
try:
exc = fut.exception()
if exc:
logger.error("[DingTalk] %s failed for msg_id=%s: %s", name, msg_id, exc)
except (asyncio.CancelledError, asyncio.InvalidStateError):
pass
class _DingTalkMessageHandler:
"""Callback handler registered with dingtalk-stream."""
def __init__(self, channel: DingTalkChannel) -> None:
self._channel = channel
def pre_start(self) -> None:
if hasattr(self, "dingtalk_client") and self.dingtalk_client is not None:
self._channel._dingtalk_client = self.dingtalk_client
async def raw_process(self, callback_message: Any) -> Any:
import dingtalk_stream
from dingtalk_stream.frames import Headers
code, message = await self.process(callback_message)
ack_message = dingtalk_stream.AckMessage()
ack_message.code = code
ack_message.headers.message_id = callback_message.headers.message_id
ack_message.headers.content_type = Headers.CONTENT_TYPE_APPLICATION_JSON
ack_message.data = {"response": message}
return ack_message
async def process(self, callback: Any) -> tuple[int, str]:
import dingtalk_stream
incoming_message = dingtalk_stream.ChatbotMessage.from_dict(callback.data)
self._channel._on_chatbot_message(incoming_message)
return dingtalk_stream.AckMessage.STATUS_OK, "OK"
-553
View File
@@ -1,553 +0,0 @@
"""Discord channel integration using discord.py."""
from __future__ import annotations
import asyncio
import json
import logging
import threading
from pathlib import Path
from typing import Any
from app.channels.base import Channel
from app.channels.message_bus import InboundMessageType, MessageBus, OutboundMessage, ResolvedAttachment
logger = logging.getLogger(__name__)
_DISCORD_MAX_MESSAGE_LEN = 2000
class DiscordChannel(Channel):
"""Discord bot channel.
Configuration keys (in ``config.yaml`` under ``channels.discord``):
- ``bot_token``: Discord Bot token.
- ``allowed_guilds``: (optional) List of allowed Discord guild IDs. Empty = allow all.
- ``mention_only``: (optional) If true, only respond when the bot is mentioned.
- ``allowed_channels``: (optional) List of channel IDs where messages are always accepted
(even when mention_only is true). Use for channels where you want the bot to respond
without mentions. Empty = mention_only applies everywhere.
- ``thread_mode``: (optional) If true, group a channel conversation into a thread.
Default: same as ``mention_only``.
"""
def __init__(self, bus: MessageBus, config: dict[str, Any]) -> None:
super().__init__(name="discord", bus=bus, config=config)
self._bot_token = str(config.get("bot_token", "")).strip()
self._allowed_guilds: set[int] = set()
for guild_id in config.get("allowed_guilds", []):
try:
self._allowed_guilds.add(int(guild_id))
except (TypeError, ValueError):
continue
self._mention_only: bool = bool(config.get("mention_only", False))
self._thread_mode: bool = config.get("thread_mode", self._mention_only)
self._allowed_channels: set[str] = set()
for channel_id in config.get("allowed_channels", []):
self._allowed_channels.add(str(channel_id))
# Session tracking: channel_id -> Discord thread_id (in-memory, persisted to JSON).
# Uses a dedicated JSON file separate from ChannelStore, which maps IM
# conversations to DeerFlow thread IDs — a different concern.
self._active_threads: dict[str, str] = {}
# Reverse-lookup set for O(1) thread ID checks (avoids O(n) scan of _active_threads.values()).
self._active_thread_ids: set[str] = set()
# Lock protecting _active_threads and the JSON file from concurrent access.
# _run_client (Discord loop thread) and the main thread both read/write.
self._thread_store_lock = threading.Lock()
store = config.get("channel_store")
if store is not None:
self._thread_store_path = store._path.parent / "discord_threads.json"
else:
self._thread_store_path = Path.home() / ".deer-flow" / "channels" / "discord_threads.json"
# Typing indicator management
self._typing_tasks: dict[str, asyncio.Task] = {}
self._client = None
self._thread: threading.Thread | None = None
self._discord_loop: asyncio.AbstractEventLoop | None = None
self._main_loop: asyncio.AbstractEventLoop | None = None
self._discord_module = None
async def start(self) -> None:
if self._running:
return
try:
import discord
except ImportError:
logger.error("discord.py is not installed. Install it with: uv add discord.py")
return
if not self._bot_token:
logger.error("Discord channel requires bot_token")
return
intents = discord.Intents.default()
intents.messages = True
intents.guilds = True
intents.message_content = True
client = discord.Client(
intents=intents,
allowed_mentions=discord.AllowedMentions.none(),
)
self._client = client
self._discord_module = discord
self._main_loop = asyncio.get_event_loop()
@client.event
async def on_message(message) -> None:
await self._on_message(message)
self._running = True
self.bus.subscribe_outbound(self._on_outbound)
self._thread = threading.Thread(target=self._run_client, daemon=True)
self._thread.start()
self._load_active_threads()
logger.info("Discord channel started")
def _load_active_threads(self) -> None:
"""Restore Discord thread mappings from the dedicated JSON file on startup."""
with self._thread_store_lock:
try:
if not self._thread_store_path.exists():
logger.debug("[Discord] no thread mappings file at %s", self._thread_store_path)
return
data = json.loads(self._thread_store_path.read_text())
self._active_threads.clear()
self._active_thread_ids.clear()
for channel_id, thread_id in data.items():
self._active_threads[channel_id] = thread_id
self._active_thread_ids.add(thread_id)
if self._active_threads:
logger.info("[Discord] restored %d thread mappings from %s", len(self._active_threads), self._thread_store_path)
except Exception:
logger.exception("[Discord] failed to load thread mappings")
def _save_thread(self, channel_id: str, thread_id: str) -> None:
"""Persist a Discord thread mapping to the dedicated JSON file."""
with self._thread_store_lock:
try:
data: dict[str, str] = {}
if self._thread_store_path.exists():
data = json.loads(self._thread_store_path.read_text())
old_id = data.get(channel_id)
data[channel_id] = thread_id
# Update reverse-lookup set
if old_id:
self._active_thread_ids.discard(old_id)
self._active_thread_ids.add(thread_id)
self._thread_store_path.parent.mkdir(parents=True, exist_ok=True)
self._thread_store_path.write_text(json.dumps(data, indent=2))
except Exception:
logger.exception("[Discord] failed to save thread mapping for channel %s", channel_id)
async def stop(self) -> None:
self._running = False
self.bus.unsubscribe_outbound(self._on_outbound)
# Cancel all active typing indicator tasks
for target_id, task in list(self._typing_tasks.items()):
if not task.done():
task.cancel()
logger.debug("[Discord] cancelled typing task for target %s", target_id)
self._typing_tasks.clear()
if self._client and self._discord_loop and self._discord_loop.is_running():
close_future = asyncio.run_coroutine_threadsafe(self._client.close(), self._discord_loop)
try:
await asyncio.wait_for(asyncio.wrap_future(close_future), timeout=10)
except TimeoutError:
logger.warning("[Discord] client close timed out after 10s")
except Exception:
logger.exception("[Discord] error while closing client")
if self._thread:
self._thread.join(timeout=10)
self._thread = None
self._client = None
self._discord_loop = None
self._discord_module = None
logger.info("Discord channel stopped")
async def send(self, msg: OutboundMessage) -> None:
# Stop typing indicator once we're sending the response
stop_future = asyncio.run_coroutine_threadsafe(self._stop_typing(msg.chat_id, msg.thread_ts), self._discord_loop)
await asyncio.wrap_future(stop_future)
target = await self._resolve_target(msg)
if target is None:
logger.error("[Discord] target not found for chat_id=%s thread_ts=%s", msg.chat_id, msg.thread_ts)
return
text = msg.text or ""
for chunk in self._split_text(text):
send_future = asyncio.run_coroutine_threadsafe(target.send(chunk), self._discord_loop)
await asyncio.wrap_future(send_future)
async def send_file(self, msg: OutboundMessage, attachment: ResolvedAttachment) -> bool:
stop_future = asyncio.run_coroutine_threadsafe(self._stop_typing(msg.chat_id, msg.thread_ts), self._discord_loop)
await asyncio.wrap_future(stop_future)
target = await self._resolve_target(msg)
if target is None:
logger.error("[Discord] target not found for file upload chat_id=%s thread_ts=%s", msg.chat_id, msg.thread_ts)
return False
if self._discord_module is None:
return False
try:
fp = open(str(attachment.actual_path), "rb") # noqa: SIM115
file = self._discord_module.File(fp, filename=attachment.filename)
send_future = asyncio.run_coroutine_threadsafe(target.send(file=file), self._discord_loop)
await asyncio.wrap_future(send_future)
logger.info("[Discord] file uploaded: %s", attachment.filename)
return True
except Exception:
logger.exception("[Discord] failed to upload file: %s", attachment.filename)
return False
async def _start_typing(self, channel, chat_id: str, thread_ts: str | None = None) -> None:
"""Starts a loop to send periodic typing indicators."""
target_id = thread_ts or chat_id
if target_id in self._typing_tasks:
return # Already typing for this target
async def _typing_loop():
try:
while True:
try:
await channel.trigger_typing()
except Exception:
pass
await asyncio.sleep(10)
except asyncio.CancelledError:
pass
task = asyncio.create_task(_typing_loop())
self._typing_tasks[target_id] = task
async def _stop_typing(self, chat_id: str, thread_ts: str | None = None) -> None:
"""Stops the typing loop for a specific target."""
target_id = thread_ts or chat_id
task = self._typing_tasks.pop(target_id, None)
if task and not task.done():
task.cancel()
logger.debug("[Discord] stopped typing indicator for target %s", target_id)
async def _add_reaction(self, message) -> None:
"""Add a checkmark reaction to acknowledge the message was received."""
try:
await message.add_reaction("")
except Exception:
logger.debug("[Discord] failed to add reaction to message %s", message.id, exc_info=True)
async def _on_message(self, message) -> None:
if not self._running or not self._client:
return
if message.author.bot:
return
if self._client.user and message.author.id == self._client.user.id:
return
guild = message.guild
if self._allowed_guilds:
if guild is None or guild.id not in self._allowed_guilds:
return
text = (message.content or "").strip()
if not text:
return
if self._discord_module is None:
return
# Determine whether the bot is mentioned in this message
user = self._client.user if self._client else None
if user:
bot_mention = user.mention # <@ID>
alt_mention = f"<@!{user.id}>" # <@!ID> (ping variant)
standard_mention = f"<@{user.id}>"
else:
bot_mention = None
alt_mention = None
standard_mention = ""
has_mention = (bot_mention and bot_mention in message.content) or (alt_mention and alt_mention in message.content) or (standard_mention and standard_mention in message.content)
# Strip mention from text for processing
if has_mention:
text = text.replace(bot_mention or "", "").replace(alt_mention or "", "").replace(standard_mention or "", "").strip()
# Don't return early if text is empty — still process the mention (e.g., create thread)
# --- Determine thread/channel routing and typing target ---
thread_id = None
chat_id = None
typing_target = None # The Discord object to type into
if isinstance(message.channel, self._discord_module.Thread):
# --- Message already inside a thread ---
thread_obj = message.channel
thread_id = str(thread_obj.id)
chat_id = str(thread_obj.parent_id or thread_obj.id)
typing_target = thread_obj
# If this is a known active thread, process normally
if thread_id in self._active_thread_ids:
msg_type = InboundMessageType.COMMAND if text.startswith("/") else InboundMessageType.CHAT
inbound = self._make_inbound(
chat_id=chat_id,
user_id=str(message.author.id),
text=text,
msg_type=msg_type,
thread_ts=thread_id,
metadata={
"guild_id": str(guild.id) if guild else None,
"channel_id": str(message.channel.id),
"message_id": str(message.id),
},
)
inbound.topic_id = thread_id
self._publish(inbound)
# Start typing indicator in the thread
if typing_target:
asyncio.create_task(self._start_typing(typing_target, chat_id, thread_id))
asyncio.create_task(self._add_reaction(message))
return
# Thread not tracked (orphaned) — create new thread and handle below
logger.debug("[Discord] message in orphaned thread %s, will create new thread", thread_id)
thread_id = None
typing_target = None
# At this point we're guaranteed to be in a channel, not a thread
# (the Thread case is handled above). Apply mention_only for all
# non-thread messages — no special case needed.
channel_id = str(message.channel.id)
# Check if there's an active thread for this channel
if channel_id in self._active_threads:
# respect mention_only: if enabled, only process messages that mention the bot
# (unless the channel is in allowed_channels)
# Messages within a thread are always allowed through (continuation).
# At this code point we know the message is in a channel, not a thread
# (Thread case handled above), so always apply the check.
if self._mention_only and not has_mention and channel_id not in self._allowed_channels:
logger.debug("[Discord] skipping no-@ message in channel %s (not in thread)", channel_id)
return
# mention_only + fresh @ → create new thread instead of routing to existing one
if self._mention_only and has_mention:
thread_obj = await self._create_thread(message)
if thread_obj is not None:
target_thread_id = str(thread_obj.id)
self._active_threads[channel_id] = target_thread_id
self._save_thread(channel_id, target_thread_id)
thread_id = target_thread_id
chat_id = channel_id
typing_target = thread_obj
logger.info("[Discord] created new thread %s in channel %s on mention (replacing existing thread)", target_thread_id, channel_id)
else:
logger.info("[Discord] thread creation failed in channel %s, falling back to channel replies", channel_id)
thread_id = channel_id
chat_id = channel_id
typing_target = message.channel
else:
# Existing session → route to the existing thread
target_thread_id = self._active_threads[channel_id]
logger.debug("[Discord] routing message in channel %s to existing thread %s", channel_id, target_thread_id)
thread_id = target_thread_id
chat_id = channel_id
typing_target = await self._get_channel_or_thread(target_thread_id)
elif self._mention_only and not has_mention and channel_id not in self._allowed_channels:
# Not mentioned and not in an allowed channel → skip
logger.debug("[Discord] skipping message without mention in channel %s", channel_id)
return
elif self._mention_only and has_mention:
# First mention in this channel → create thread
thread_obj = await self._create_thread(message)
if thread_obj is not None:
target_thread_id = str(thread_obj.id)
self._active_threads[channel_id] = target_thread_id
self._save_thread(channel_id, target_thread_id)
thread_id = target_thread_id
chat_id = channel_id
typing_target = thread_obj # Type into the new thread
logger.info("[Discord] created thread %s in channel %s for user %s", target_thread_id, channel_id, message.author.display_name)
else:
# Fallback: thread creation failed (disabled/permissions), reply in channel
logger.info("[Discord] thread creation failed in channel %s, falling back to channel replies", channel_id)
thread_id = channel_id
chat_id = channel_id
typing_target = message.channel # Type into the channel
elif self._thread_mode:
# thread_mode but mention_only is False → create thread anyway for conversation grouping
thread_obj = await self._create_thread(message)
if thread_obj is None:
# Thread creation failed (disabled/permissions), fall back to channel replies
logger.info("[Discord] thread creation failed in channel %s, falling back to channel replies", channel_id)
thread_id = channel_id
chat_id = channel_id
typing_target = message.channel # Type into the channel
else:
target_thread_id = str(thread_obj.id)
self._active_threads[channel_id] = target_thread_id
self._save_thread(channel_id, target_thread_id)
thread_id = target_thread_id
chat_id = channel_id
typing_target = thread_obj # Type into the new thread
else:
# No threading — reply directly in channel
thread_id = channel_id
chat_id = channel_id
typing_target = message.channel # Type into the channel
msg_type = InboundMessageType.COMMAND if text.startswith("/") else InboundMessageType.CHAT
inbound = self._make_inbound(
chat_id=chat_id,
user_id=str(message.author.id),
text=text,
msg_type=msg_type,
thread_ts=thread_id,
metadata={
"guild_id": str(guild.id) if guild else None,
"channel_id": str(message.channel.id),
"message_id": str(message.id),
},
)
inbound.topic_id = thread_id
# Start typing indicator in the correct target (thread or channel)
if typing_target:
asyncio.create_task(self._start_typing(typing_target, chat_id, thread_id))
self._publish(inbound)
asyncio.create_task(self._add_reaction(message))
def _publish(self, inbound) -> None:
"""Publish an inbound message to the main event loop."""
if self._main_loop and self._main_loop.is_running():
future = asyncio.run_coroutine_threadsafe(self.bus.publish_inbound(inbound), self._main_loop)
future.add_done_callback(lambda f: logger.exception("[Discord] publish_inbound failed", exc_info=f.exception()) if f.exception() else None)
def _run_client(self) -> None:
self._discord_loop = asyncio.new_event_loop()
asyncio.set_event_loop(self._discord_loop)
try:
self._discord_loop.run_until_complete(self._client.start(self._bot_token))
except Exception:
if self._running:
logger.exception("Discord client error")
finally:
try:
if self._client and not self._client.is_closed():
self._discord_loop.run_until_complete(self._client.close())
except Exception:
logger.exception("Error during Discord shutdown")
async def _create_thread(self, message):
try:
if self._discord_module is None:
return None
# Only TextChannel (type 0) and NewsChannel (type 10) support threads
channel_type = message.channel.type
if channel_type not in (
self._discord_module.ChannelType.text,
self._discord_module.ChannelType.news,
):
logger.info(
"[Discord] channel type %s (%s) does not support threads",
channel_type.value,
channel_type.name,
)
return None
thread_name = f"deerflow-{message.author.display_name}-{message.id}"[:100]
return await message.create_thread(name=thread_name)
except self._discord_module.errors.HTTPException as exc:
if exc.code == 50024:
logger.info(
"[Discord] cannot create thread in channel %s (error code 50024): %s",
message.channel.id,
channel_type.name if (channel_type := message.channel.type) else "unknown",
)
else:
logger.exception(
"[Discord] failed to create thread for message=%s (HTTPException %s)",
message.id,
exc.code,
)
return None
except Exception:
logger.exception("[Discord] failed to create thread for message=%s (threads may be disabled or missing permissions)", message.id)
return None
async def _resolve_target(self, msg: OutboundMessage):
if not self._client or not self._discord_loop:
return None
target_ids: list[str] = []
if msg.thread_ts:
target_ids.append(msg.thread_ts)
if msg.chat_id and msg.chat_id not in target_ids:
target_ids.append(msg.chat_id)
for raw_id in target_ids:
target = await self._get_channel_or_thread(raw_id)
if target is not None:
return target
return None
async def _get_channel_or_thread(self, raw_id: str):
if not self._client or not self._discord_loop:
return None
try:
target_id = int(raw_id)
except (TypeError, ValueError):
return None
get_future = asyncio.run_coroutine_threadsafe(self._fetch_channel(target_id), self._discord_loop)
try:
return await asyncio.wrap_future(get_future)
except Exception:
logger.exception("[Discord] failed to resolve target id=%s", raw_id)
return None
async def _fetch_channel(self, target_id: int):
if not self._client:
return None
channel = self._client.get_channel(target_id)
if channel is not None:
return channel
try:
return await self._client.fetch_channel(target_id)
except Exception:
return None
@staticmethod
def _split_text(text: str) -> list[str]:
if not text:
return [""]
chunks: list[str] = []
remaining = text
while len(remaining) > _DISCORD_MAX_MESSAGE_LEN:
split_at = remaining.rfind("\n", 0, _DISCORD_MAX_MESSAGE_LEN)
if split_at <= 0:
split_at = _DISCORD_MAX_MESSAGE_LEN
chunks.append(remaining[:split_at])
remaining = remaining[split_at:].lstrip("\n")
if remaining:
chunks.append(remaining)
return chunks
+2 -8
View File
@@ -13,7 +13,6 @@ from app.channels.base import Channel
from app.channels.commands import KNOWN_CHANNEL_COMMANDS
from app.channels.message_bus import InboundMessage, InboundMessageType, MessageBus, OutboundMessage, ResolvedAttachment
from deerflow.config.paths import VIRTUAL_PATH_PREFIX, get_paths
from deerflow.runtime.user_context import get_effective_user_id
from deerflow.sandbox.sandbox_provider import get_sandbox_provider
logger = logging.getLogger(__name__)
@@ -63,10 +62,6 @@ class FeishuChannel(Channel):
self._GetMessageResourceRequest = None
self._thread_lock = threading.Lock()
@property
def supports_streaming(self) -> bool:
return True
async def start(self) -> None:
if self._running:
return
@@ -349,9 +344,8 @@ class FeishuChannel(Channel):
return f"Failed to obtain the [{type}]"
paths = get_paths()
user_id = get_effective_user_id()
paths.ensure_thread_dirs(thread_id, user_id=user_id)
uploads_dir = paths.sandbox_uploads_dir(thread_id, user_id=user_id).resolve()
paths.ensure_thread_dirs(thread_id)
uploads_dir = paths.sandbox_uploads_dir(thread_id).resolve()
ext = "png" if type == "image" else "bin"
raw_filename = getattr(response, "file_name", "") or f"feishu_{file_key[-12:]}.{ext}"
+20 -100
View File
@@ -1,4 +1,4 @@
"""ChannelManager — consumes inbound messages and dispatches them to the DeerFlow agent via Gateway."""
"""ChannelManager — consumes inbound messages and dispatches them to the DeerFlow agent via LangGraph Server."""
from __future__ import annotations
@@ -17,13 +17,10 @@ from langgraph_sdk.errors import ConflictError
from app.channels.commands import KNOWN_CHANNEL_COMMANDS
from app.channels.message_bus import InboundMessage, InboundMessageType, MessageBus, OutboundMessage, ResolvedAttachment
from app.channels.store import ChannelStore
from app.gateway.csrf_middleware import CSRF_COOKIE_NAME, CSRF_HEADER_NAME, generate_csrf_token
from app.gateway.internal_auth import create_internal_auth_headers
from deerflow.runtime.user_context import get_effective_user_id
logger = logging.getLogger(__name__)
DEFAULT_LANGGRAPH_URL = "http://localhost:8001/api"
DEFAULT_LANGGRAPH_URL = "http://localhost:2024"
DEFAULT_GATEWAY_URL = "http://localhost:8001"
DEFAULT_ASSISTANT_ID = "lead_agent"
CUSTOM_AGENT_NAME_PATTERN = re.compile(r"^[A-Za-z0-9-]+$")
@@ -38,8 +35,6 @@ STREAM_UPDATE_MIN_INTERVAL_SECONDS = 0.35
THREAD_BUSY_MESSAGE = "This conversation is already processing another request. Please wait for it to finish and try again."
CHANNEL_CAPABILITIES = {
"dingtalk": {"supports_streaming": False},
"discord": {"supports_streaming": False},
"feishu": {"supports_streaming": True},
"slack": {"supports_streaming": False},
"telegram": {"supports_streaming": False},
@@ -49,13 +44,6 @@ CHANNEL_CAPABILITIES = {
InboundFileReader = Callable[[dict[str, Any], httpx.AsyncClient], Awaitable[bytes | None]]
_METADATA_DROP_KEYS = frozenset({"raw_message", "ref_msg"})
def _slim_metadata(meta: dict[str, Any]) -> dict[str, Any]:
"""Return a shallow copy of *meta* with known-large keys removed."""
return {k: v for k, v in meta.items() if k not in _METADATA_DROP_KEYS}
INBOUND_FILE_READERS: dict[str, InboundFileReader] = {}
@@ -146,13 +134,6 @@ def _normalize_custom_agent_name(raw_value: str) -> str:
return normalized
def _strip_loop_warning_text(text: str) -> str:
"""Remove middleware-authored loop warning lines from display text."""
if "[LOOP DETECTED]" not in text:
return text
return "\n".join(line for line in text.splitlines() if "[LOOP DETECTED]" not in line).strip()
def _extract_response_text(result: dict | list) -> str:
"""Extract the last AI message text from a LangGraph runs.wait result.
@@ -162,7 +143,7 @@ def _extract_response_text(result: dict | list) -> str:
Handles special cases:
- Regular AI text responses
- Clarification interrupts (``ask_clarification`` tool messages)
- Strips loop-detection warnings attached to tool-call AI messages
- AI messages with tool_calls but no text content
"""
if isinstance(result, list):
messages = result
@@ -192,12 +173,7 @@ def _extract_response_text(result: dict | list) -> str:
# Regular AI message with text content
if msg_type == "ai":
content = msg.get("content", "")
has_tool_calls = bool(msg.get("tool_calls"))
if isinstance(content, str) and content:
if has_tool_calls:
content = _strip_loop_warning_text(content)
if not content:
continue
return content
# content can be a list of content blocks
if isinstance(content, list):
@@ -208,8 +184,6 @@ def _extract_response_text(result: dict | list) -> str:
elif isinstance(block, str):
parts.append(block)
text = "".join(parts)
if has_tool_calls:
text = _strip_loop_warning_text(text)
if text:
return text
return ""
@@ -367,15 +341,14 @@ def _resolve_attachments(thread_id: str, artifacts: list[str]) -> list[ResolvedA
attachments: list[ResolvedAttachment] = []
paths = get_paths()
user_id = get_effective_user_id()
outputs_dir = paths.sandbox_outputs_dir(thread_id, user_id=user_id).resolve()
outputs_dir = paths.sandbox_outputs_dir(thread_id).resolve()
for virtual_path in artifacts:
# Security: only allow files from the agent outputs directory
if not virtual_path.startswith(_OUTPUTS_VIRTUAL_PREFIX):
logger.warning("[Manager] rejected non-outputs artifact path: %s", virtual_path)
continue
try:
actual = paths.resolve_virtual_path(thread_id, virtual_path, user_id=user_id)
actual = paths.resolve_virtual_path(thread_id, virtual_path)
# Verify the resolved path is actually under the outputs directory
# (guards against path-traversal even after prefix check)
try:
@@ -434,13 +407,7 @@ async def _ingest_inbound_files(thread_id: str, msg: InboundMessage) -> list[dic
if not msg.files:
return []
from deerflow.uploads.manager import (
UnsafeUploadPathError,
claim_unique_filename,
ensure_uploads_dir,
normalize_filename,
write_upload_file_no_symlink,
)
from deerflow.uploads.manager import claim_unique_filename, ensure_uploads_dir, normalize_filename
uploads_dir = ensure_uploads_dir(thread_id)
seen_names = {entry.name for entry in uploads_dir.iterdir() if entry.is_file()}
@@ -491,10 +458,7 @@ async def _ingest_inbound_files(thread_id: str, msg: InboundMessage) -> list[dic
dest = uploads_dir / safe_name
try:
dest = write_upload_file_no_symlink(uploads_dir, safe_name, data)
except UnsafeUploadPathError:
logger.warning("[Manager] skipping inbound file with unsafe destination: %s", safe_name)
continue
dest.write_bytes(data)
except Exception:
logger.exception("[Manager] failed to write inbound file: %s", dest)
continue
@@ -542,7 +506,7 @@ class ChannelManager:
"""Core dispatcher that bridges IM channels to the DeerFlow agent.
It reads from the MessageBus inbound queue, creates/reuses threads on
Gateway's LangGraph-compatible API, sends messages via ``runs.wait``, and publishes
the LangGraph Server, sends messages via ``runs.wait``, and publishes
outbound responses back through the bus.
"""
@@ -567,20 +531,12 @@ class ChannelManager:
self._default_session = _as_dict(default_session)
self._channel_sessions = dict(channel_sessions or {})
self._client = None # lazy init — langgraph_sdk async client
self._csrf_token = generate_csrf_token()
self._semaphore: asyncio.Semaphore | None = None
self._running = False
self._task: asyncio.Task | None = None
@staticmethod
def _channel_supports_streaming(channel_name: str) -> bool:
from .service import get_channel_service
service = get_channel_service()
if service:
channel = service.get_channel(channel_name)
if channel is not None:
return channel.supports_streaming
return CHANNEL_CAPABILITIES.get(channel_name, {}).get("supports_streaming", False)
def _resolve_session_layer(self, msg: InboundMessage) -> tuple[dict[str, Any], dict[str, Any]]:
@@ -603,17 +559,6 @@ class ChannelManager:
user_layer.get("config"),
)
configurable = run_config.get("configurable")
if isinstance(configurable, Mapping):
configurable = dict(configurable)
else:
configurable = {}
run_config["configurable"] = configurable
# Pin channel-triggered runs to the root graph namespace so follow-up
# turns continue from the same conversation checkpoint.
configurable["checkpoint_ns"] = ""
configurable["thread_id"] = thread_id
run_context = _merge_dicts(
DEFAULT_RUN_CONTEXT,
self._default_session.get("context"),
@@ -638,14 +583,7 @@ class ChannelManager:
if self._client is None:
from langgraph_sdk import get_client
self._client = get_client(
url=self._langgraph_url,
headers={
**create_internal_auth_headers(),
CSRF_HEADER_NAME: self._csrf_token,
"Cookie": f"{CSRF_COOKIE_NAME}={self._csrf_token}",
},
)
self._client = get_client(url=self._langgraph_url)
return self._client
# -- lifecycle ---------------------------------------------------------
@@ -728,7 +666,7 @@ class ChannelManager:
# -- chat handling -----------------------------------------------------
async def _create_thread(self, client, msg: InboundMessage) -> str:
"""Create a new thread through Gateway and store the mapping."""
"""Create a new thread on the LangGraph Server and store the mapping."""
thread = await client.threads.create()
thread_id = thread["thread_id"]
self.store.set_thread_id(
@@ -738,7 +676,7 @@ class ChannelManager:
topic_id=msg.topic_id,
user_id=msg.user_id,
)
logger.info("[Manager] new thread created through Gateway: thread_id=%s for chat_id=%s topic_id=%s", thread_id, msg.chat_id, msg.topic_id)
logger.info("[Manager] new thread created on LangGraph Server: thread_id=%s for chat_id=%s topic_id=%s", thread_id, msg.chat_id, msg.topic_id)
return thread_id
async def _handle_chat(self, msg: InboundMessage, extra_context: dict[str, Any] | None = None) -> None:
@@ -787,22 +725,13 @@ class ChannelManager:
return
logger.info("[Manager] invoking runs.wait(thread_id=%s, text=%r)", thread_id, msg.text[:100])
try:
result = await client.runs.wait(
thread_id,
assistant_id,
input={"messages": [{"role": "human", "content": msg.text}]},
config=run_config,
context=run_context,
multitask_strategy="reject",
)
except Exception as exc:
if _is_thread_busy_error(exc):
logger.warning("[Manager] thread busy (concurrent run rejected): thread_id=%s", thread_id)
await self._send_error(msg, THREAD_BUSY_MESSAGE)
return
else:
raise
result = await client.runs.wait(
thread_id,
assistant_id,
input={"messages": [{"role": "human", "content": msg.text}]},
config=run_config,
context=run_context,
)
response_text = _extract_response_text(result)
artifacts = _extract_artifacts(result)
@@ -830,7 +759,6 @@ class ChannelManager:
artifacts=artifacts,
attachments=attachments,
thread_ts=msg.thread_ts,
metadata=_slim_metadata(msg.metadata),
)
logger.info("[Manager] publishing outbound message to bus: channel=%s, chat_id=%s", msg.channel_name, msg.chat_id)
await self.bus.publish_outbound(outbound)
@@ -892,7 +820,6 @@ class ChannelManager:
text=latest_text,
is_final=False,
thread_ts=msg.thread_ts,
metadata=_slim_metadata(msg.metadata),
)
)
last_published_text = latest_text
@@ -937,7 +864,6 @@ class ChannelManager:
attachments=attachments,
is_final=True,
thread_ts=msg.thread_ts,
metadata=_slim_metadata(msg.metadata),
)
)
@@ -957,7 +883,7 @@ class ChannelManager:
return
if command == "new":
# Create a new thread through Gateway
# Create a new thread on the LangGraph Server
client = self._get_client()
thread = await client.threads.create()
new_thread_id = thread["thread_id"]
@@ -996,7 +922,6 @@ class ChannelManager:
thread_id=self.store.get_thread_id(msg.channel_name, msg.chat_id) or "",
text=reply,
thread_ts=msg.thread_ts,
metadata=_slim_metadata(msg.metadata),
)
await self.bus.publish_outbound(outbound)
@@ -1006,11 +931,7 @@ class ChannelManager:
try:
async with httpx.AsyncClient() as http:
resp = await http.get(
f"{self._gateway_url}{path}",
timeout=10,
headers=create_internal_auth_headers(),
)
resp = await http.get(f"{self._gateway_url}{path}", timeout=10)
resp.raise_for_status()
data = resp.json()
except Exception:
@@ -1034,6 +955,5 @@ class ChannelManager:
thread_id=self.store.get_thread_id(msg.channel_name, msg.chat_id) or "",
text=error_text,
thread_ts=msg.thread_ts,
metadata=_slim_metadata(msg.metadata),
)
await self.bus.publish_outbound(outbound)
+9 -42
View File
@@ -4,7 +4,7 @@ from __future__ import annotations
import logging
import os
from typing import TYPE_CHECKING, Any
from typing import Any
from app.channels.base import Channel
from app.channels.manager import DEFAULT_GATEWAY_URL, DEFAULT_LANGGRAPH_URL, ChannelManager
@@ -13,13 +13,8 @@ from app.channels.store import ChannelStore
logger = logging.getLogger(__name__)
if TYPE_CHECKING:
from deerflow.config.app_config import AppConfig
# Channel name → import path for lazy loading
_CHANNEL_REGISTRY: dict[str, str] = {
"dingtalk": "app.channels.dingtalk:DingTalkChannel",
"discord": "app.channels.discord:DiscordChannel",
"feishu": "app.channels.feishu:FeishuChannel",
"slack": "app.channels.slack:SlackChannel",
"telegram": "app.channels.telegram:TelegramChannel",
@@ -27,17 +22,6 @@ _CHANNEL_REGISTRY: dict[str, str] = {
"wecom": "app.channels.wecom:WeComChannel",
}
# Keys that indicate a user has configured credentials for a channel.
_CHANNEL_CREDENTIAL_KEYS: dict[str, list[str]] = {
"dingtalk": ["client_id", "client_secret"],
"discord": ["bot_token"],
"feishu": ["app_id", "app_secret"],
"slack": ["bot_token", "app_token"],
"telegram": ["bot_token"],
"wecom": ["bot_id", "bot_secret"],
"wechat": ["bot_token"],
}
_CHANNELS_LANGGRAPH_URL_ENV = "DEER_FLOW_CHANNELS_LANGGRAPH_URL"
_CHANNELS_GATEWAY_URL_ENV = "DEER_FLOW_CHANNELS_GATEWAY_URL"
@@ -80,15 +64,14 @@ class ChannelService:
self._running = False
@classmethod
def from_app_config(cls, app_config: AppConfig | None = None) -> ChannelService:
def from_app_config(cls) -> ChannelService:
"""Create a ChannelService from the application config."""
if app_config is None:
from deerflow.config.app_config import get_app_config
from deerflow.config.app_config import get_app_config
app_config = get_app_config()
config = get_app_config()
channels_config = {}
# extra fields are allowed by AppConfig (extra="allow")
extra = app_config.model_extra or {}
extra = config.model_extra or {}
if "channels" in extra:
channels_config = extra["channels"]
return cls(channels_config=channels_config)
@@ -104,16 +87,7 @@ class ChannelService:
if not isinstance(channel_config, dict):
continue
if not channel_config.get("enabled", False):
cred_keys = _CHANNEL_CREDENTIAL_KEYS.get(name, [])
has_creds = any(not isinstance(channel_config.get(k), bool) and channel_config.get(k) is not None and str(channel_config[k]).strip() for k in cred_keys)
if has_creds:
logger.warning(
"Channel '%s' has credentials configured but is disabled. Set enabled: true under channels.%s in config.yaml to activate it.",
name,
name,
)
else:
logger.info("Channel %s is disabled, skipping", name)
logger.info("Channel %s is disabled, skipping", name)
continue
await self._start_channel(name, channel_config)
@@ -167,19 +141,12 @@ class ChannelService:
return False
try:
config = dict(config)
config["channel_store"] = self.store
channel = channel_cls(bus=self.bus, config=config)
self._channels[name] = channel
await channel.start()
if not channel.is_running:
self._channels.pop(name, None)
logger.error("Channel %s did not enter a running state after start()", name)
return False
self._channels[name] = channel
logger.info("Channel %s started", name)
return True
except Exception:
self._channels.pop(name, None)
logger.exception("Failed to start channel %s", name)
return False
@@ -214,12 +181,12 @@ def get_channel_service() -> ChannelService | None:
return _channel_service
async def start_channel_service(app_config: AppConfig | None = None) -> ChannelService:
async def start_channel_service() -> ChannelService:
"""Create and start the global ChannelService from app config."""
global _channel_service
if _channel_service is not None:
return _channel_service
_channel_service = ChannelService.from_app_config(app_config)
_channel_service = ChannelService.from_app_config()
await _channel_service.start()
return _channel_service
+2 -20
View File
@@ -16,31 +16,13 @@ logger = logging.getLogger(__name__)
_slack_md_converter = SlackMarkdownConverter()
def _normalize_allowed_users(allowed_users: Any) -> set[str]:
if allowed_users is None:
return set()
if isinstance(allowed_users, str):
values = [allowed_users]
elif isinstance(allowed_users, list | tuple | set):
values = allowed_users
else:
logger.warning(
"Slack allowed_users should be a list of Slack user IDs or a single Slack user ID string; treating %s as one string value",
type(allowed_users).__name__,
)
values = [allowed_users]
return {str(user_id) for user_id in values if str(user_id)}
class SlackChannel(Channel):
"""Slack IM channel using Socket Mode (WebSocket, no public IP).
Configuration keys (in ``config.yaml`` under ``channels.slack``):
- ``bot_token``: Slack Bot User OAuth Token (xoxb-...).
- ``app_token``: Slack App-Level Token (xapp-...) for Socket Mode.
- ``allowed_users``: (optional) List of allowed Slack user IDs, or a
single Slack user ID string as shorthand. Empty = allow all. Other
scalar values are treated as a single string with a warning.
- ``allowed_users``: (optional) List of allowed Slack user IDs. Empty = allow all.
"""
def __init__(self, bus: MessageBus, config: dict[str, Any]) -> None:
@@ -48,7 +30,7 @@ class SlackChannel(Channel):
self._socket_client = None
self._web_client = None
self._loop: asyncio.AbstractEventLoop | None = None
self._allowed_users = _normalize_allowed_users(config.get("allowed_users", []))
self._allowed_users: set[str] = {str(user_id) for user_id in config.get("allowed_users", [])}
async def start(self) -> None:
if self._running:
-4
View File
@@ -29,10 +29,6 @@ class WeComChannel(Channel):
self._ws_stream_ids: dict[str, str] = {}
self._working_message = "Working on it..."
@property
def supports_streaming(self) -> bool:
return True
def _clear_ws_context(self, thread_ts: str | None) -> None:
if not thread_ts:
return
+13 -177
View File
@@ -1,22 +1,16 @@
import asyncio
import logging
from collections.abc import AsyncGenerator
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.gateway.auth_middleware import AuthMiddleware
from app.gateway.config import get_gateway_config
from app.gateway.csrf_middleware import CSRFMiddleware, get_configured_cors_origins
from app.gateway.deps import langgraph_runtime
from app.gateway.routers import (
agents,
artifacts,
assistants_compat,
auth,
channels,
feedback,
mcp,
memory,
models,
@@ -27,13 +21,9 @@ from app.gateway.routers import (
threads,
uploads,
)
from deerflow.config import app_config as deerflow_app_config
from deerflow.config.app_config import apply_logging_level
from deerflow.config.app_config import get_app_config
AppConfig = deerflow_app_config.AppConfig
get_app_config = deerflow_app_config.get_app_config
# Default logging; lifespan overrides from config.yaml log_level.
# Configure logging
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
@@ -42,120 +32,6 @@ logging.basicConfig(
logger = logging.getLogger(__name__)
# Upper bound (seconds) each lifespan shutdown hook is allowed to run.
# Bounds worker exit time so uvicorn's reload supervisor does not keep
# firing signals into a worker that is stuck waiting for shutdown cleanup.
_SHUTDOWN_HOOK_TIMEOUT_SECONDS = 5.0
async def _ensure_admin_user(app: FastAPI) -> None:
"""Startup hook: handle first boot and migrate orphan threads otherwise.
After admin creation, migrate orphan threads from the LangGraph
store (metadata.user_id unset) to the admin account. This is the
"no-auth → with-auth" upgrade path: users who ran DeerFlow without
authentication have existing LangGraph thread data that needs an
owner assigned.
First boot (no admin exists):
- Does NOT create any user accounts automatically.
- The operator must visit ``/setup`` to create the first admin.
Subsequent boots (admin already exists):
- Runs the one-time "no-auth → with-auth" orphan thread migration for
existing LangGraph thread metadata that has no user_id.
No SQL persistence migration is needed: the four user_id columns
(threads_meta, runs, run_events, feedback) only come into existence
alongside the auth module via create_all, so freshly created tables
never contain NULL-owner rows.
"""
from sqlalchemy import select
from app.gateway.deps import get_local_provider
from deerflow.persistence.engine import get_session_factory
from deerflow.persistence.user.model import UserRow
try:
provider = get_local_provider()
except RuntimeError:
# Auth persistence may not be initialized in some test/boot paths.
# Skip admin migration work rather than failing gateway startup.
logger.warning("Auth persistence not ready; skipping admin bootstrap check")
return
sf = get_session_factory()
if sf is None:
return
admin_count = await provider.count_admin_users()
if admin_count == 0:
logger.info("=" * 60)
logger.info(" First boot detected — no admin account exists.")
logger.info(" Visit /setup to complete admin account creation.")
logger.info("=" * 60)
return
# Admin already exists — run orphan thread migration for any
# LangGraph thread metadata that pre-dates the auth module.
async with sf() as session:
stmt = select(UserRow).where(UserRow.system_role == "admin").limit(1)
row = (await session.execute(stmt)).scalar_one_or_none()
if row is None:
return # Should not happen (admin_count > 0 above), but be safe.
admin_id = str(row.id)
# LangGraph store orphan migration — non-fatal.
# This covers the "no-auth → with-auth" upgrade path for users
# whose existing LangGraph thread metadata has no user_id set.
store = getattr(app.state, "store", None)
if store is not None:
try:
migrated = await _migrate_orphaned_threads(store, admin_id)
if migrated:
logger.info("Migrated %d orphan LangGraph thread(s) to admin", migrated)
except Exception:
logger.exception("LangGraph thread migration failed (non-fatal)")
async def _iter_store_items(store, namespace, *, page_size: int = 500):
"""Paginated async iterator over a LangGraph store namespace.
Replaces the old hardcoded ``limit=1000`` call with a cursor-style
loop so that environments with more than one page of orphans do
not silently lose data. Terminates when a page is empty OR when a
short page arrives (indicating the last page).
"""
offset = 0
while True:
batch = await store.asearch(namespace, limit=page_size, offset=offset)
if not batch:
return
for item in batch:
yield item
if len(batch) < page_size:
return
offset += page_size
async def _migrate_orphaned_threads(store, admin_user_id: str) -> int:
"""Migrate LangGraph store threads with no user_id to the given admin.
Uses cursor pagination so all orphans are migrated regardless of
count. Returns the number of rows migrated.
"""
migrated = 0
async for item in _iter_store_items(store, ("threads",)):
metadata = item.value.get("metadata", {})
if not metadata.get("user_id"):
metadata["user_id"] = admin_user_id
item.value["metadata"] = metadata
await store.aput(("threads",), item.key, item.value)
migrated += 1
return migrated
@asynccontextmanager
async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
@@ -163,8 +39,7 @@ async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
# Load config and check necessary environment variables at startup
try:
app.state.config = get_app_config()
apply_logging_level(app.state.config.log_level)
get_app_config()
logger.info("Configuration loaded successfully")
except Exception as e:
error_msg = f"Failed to load configuration during gateway startup: {e}"
@@ -177,34 +52,22 @@ async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
async with langgraph_runtime(app):
logger.info("LangGraph runtime initialised")
# Check admin bootstrap state and migrate orphan threads after admin exists.
# Must run AFTER langgraph_runtime so app.state.store is available for thread migration
await _ensure_admin_user(app)
# Start IM channel service if any channels are configured
try:
from app.channels.service import start_channel_service
channel_service = await start_channel_service(app.state.config)
channel_service = await start_channel_service()
logger.info("Channel service started: %s", channel_service.get_status())
except Exception:
logger.exception("No IM channels configured or channel service failed to start")
yield
# Stop channel service on shutdown (bounded to prevent worker hang)
# Stop channel service on shutdown
try:
from app.channels.service import stop_channel_service
await asyncio.wait_for(
stop_channel_service(),
timeout=_SHUTDOWN_HOOK_TIMEOUT_SECONDS,
)
except TimeoutError:
logger.warning(
"Channel service shutdown exceeded %.1fs; proceeding with worker exit.",
_SHUTDOWN_HOOK_TIMEOUT_SECONDS,
)
await stop_channel_service()
except Exception:
logger.exception("Failed to stop channel service")
@@ -217,10 +80,6 @@ def create_app() -> FastAPI:
Returns:
Configured FastAPI application instance.
"""
config = get_gateway_config()
docs_url = "/docs" if config.enable_docs else None
redoc_url = "/redoc" if config.enable_docs else None
openapi_url = "/openapi.json" if config.enable_docs else None
app = FastAPI(
title="DeerFlow API Gateway",
@@ -240,14 +99,14 @@ API Gateway for DeerFlow - A LangGraph-based AI agent backend with sandbox execu
### Architecture
LangGraph-compatible requests are routed through nginx to this gateway.
This gateway provides runtime endpoints for agent runs plus custom endpoints for models, MCP configuration, skills, and artifacts.
LangGraph requests are handled by nginx reverse proxy.
This gateway provides custom endpoints for models, MCP configuration, skills, and artifacts.
""",
version="0.1.0",
lifespan=lifespan,
docs_url=docs_url,
redoc_url=redoc_url,
openapi_url=openapi_url,
docs_url="/docs",
redoc_url="/redoc",
openapi_url="/openapi.json",
openapi_tags=[
{
"name": "models",
@@ -304,24 +163,7 @@ This gateway provides runtime endpoints for agent runs plus custom endpoints for
],
)
# Auth: reject unauthenticated requests to non-public paths (fail-closed safety net)
app.add_middleware(AuthMiddleware)
# CSRF: Double Submit Cookie pattern for state-changing requests
app.add_middleware(CSRFMiddleware)
# CORS: the unified nginx endpoint is same-origin by default. Split-origin
# browser clients must opt in with this explicit Gateway allowlist so CORS
# and CSRF origin checks share the same source of truth.
cors_origins = sorted(get_configured_cors_origins())
if cors_origins:
app.add_middleware(
CORSMiddleware,
allow_origins=cors_origins,
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# CORS is handled by nginx - no need for FastAPI middleware
# Include routers
# Models API is mounted at /api/models
@@ -357,12 +199,6 @@ This gateway provides runtime endpoints for agent runs plus custom endpoints for
# Assistants compatibility API (LangGraph Platform stub)
app.include_router(assistants_compat.router)
# Auth API is mounted at /api/v1/auth
app.include_router(auth.router)
# Feedback API is mounted at /api/threads/{thread_id}/runs/{run_id}/feedback
app.include_router(feedback.router)
# Thread Runs API (LangGraph Platform-compatible runs lifecycle)
app.include_router(thread_runs.router)
@@ -370,7 +206,7 @@ This gateway provides runtime endpoints for agent runs plus custom endpoints for
app.include_router(runs.router)
@app.get("/health", tags=["health"])
async def health_check() -> dict[str, str]:
async def health_check() -> dict:
"""Health check endpoint.
Returns:
-42
View File
@@ -1,42 +0,0 @@
"""Authentication module for DeerFlow.
This module provides:
- JWT-based authentication
- Provider Factory pattern for extensible auth methods
- UserRepository interface for storage backends (SQLite)
"""
from app.gateway.auth.config import AuthConfig, get_auth_config, set_auth_config
from app.gateway.auth.errors import AuthErrorCode, AuthErrorResponse, TokenError
from app.gateway.auth.jwt import TokenPayload, create_access_token, decode_token
from app.gateway.auth.local_provider import LocalAuthProvider
from app.gateway.auth.models import User, UserResponse
from app.gateway.auth.password import hash_password, verify_password
from app.gateway.auth.providers import AuthProvider
from app.gateway.auth.repositories.base import UserRepository
__all__ = [
# Config
"AuthConfig",
"get_auth_config",
"set_auth_config",
# Errors
"AuthErrorCode",
"AuthErrorResponse",
"TokenError",
# JWT
"TokenPayload",
"create_access_token",
"decode_token",
# Password
"hash_password",
"verify_password",
# Models
"User",
"UserResponse",
# Providers
"AuthProvider",
"LocalAuthProvider",
# Repository
"UserRepository",
]
-85
View File
@@ -1,85 +0,0 @@
"""Authentication configuration for DeerFlow."""
import logging
import os
import secrets
from pydantic import BaseModel, Field
logger = logging.getLogger(__name__)
_SECRET_FILE = ".jwt_secret"
class AuthConfig(BaseModel):
"""JWT and auth-related configuration. Parsed once at startup.
Note: the ``users`` table now lives in the shared persistence
database managed by ``deerflow.persistence.engine``. The old
``users_db_path`` config key has been removed — user storage is
configured through ``config.database`` like every other table.
"""
jwt_secret: str = Field(
...,
description="Secret key for JWT signing. MUST be set via AUTH_JWT_SECRET.",
)
token_expiry_days: int = Field(default=7, ge=1, le=30)
oauth_github_client_id: str | None = Field(default=None)
oauth_github_client_secret: str | None = Field(default=None)
_auth_config: AuthConfig | None = None
def _load_or_create_secret() -> str:
"""Load persisted JWT secret from ``{base_dir}/.jwt_secret``, or generate and persist a new one."""
from deerflow.config.paths import get_paths
paths = get_paths()
secret_file = paths.base_dir / _SECRET_FILE
try:
if secret_file.exists():
secret = secret_file.read_text(encoding="utf-8").strip()
if secret:
return secret
except OSError as exc:
raise RuntimeError(f"Failed to read JWT secret from {secret_file}. Set AUTH_JWT_SECRET explicitly or fix DEER_FLOW_HOME/base directory permissions so DeerFlow can read its persisted auth secret.") from exc
secret = secrets.token_urlsafe(32)
try:
secret_file.parent.mkdir(parents=True, exist_ok=True)
fd = os.open(secret_file, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600)
with os.fdopen(fd, "w", encoding="utf-8") as fh:
fh.write(secret)
except OSError as exc:
raise RuntimeError(f"Failed to persist JWT secret to {secret_file}. Set AUTH_JWT_SECRET explicitly or fix DEER_FLOW_HOME/base directory permissions so DeerFlow can store a stable auth secret.") from exc
return secret
def get_auth_config() -> AuthConfig:
"""Get the global AuthConfig instance. Parses from env on first call."""
global _auth_config
if _auth_config is None:
from dotenv import load_dotenv
load_dotenv()
jwt_secret = os.environ.get("AUTH_JWT_SECRET")
if not jwt_secret:
jwt_secret = _load_or_create_secret()
os.environ["AUTH_JWT_SECRET"] = jwt_secret
logger.warning(
"⚠ AUTH_JWT_SECRET is not set — using an auto-generated secret "
"persisted to .jwt_secret. Sessions will survive restarts. "
"For production, add AUTH_JWT_SECRET to your .env file: "
'python -c "import secrets; print(secrets.token_urlsafe(32))"'
)
_auth_config = AuthConfig(jwt_secret=jwt_secret)
return _auth_config
def set_auth_config(config: AuthConfig) -> None:
"""Set the global AuthConfig instance (for testing)."""
global _auth_config
_auth_config = config
@@ -1,48 +0,0 @@
"""Write initial admin credentials to a restricted file instead of logs.
Logging secrets to stdout/stderr is a well-known CodeQL finding
(py/clear-text-logging-sensitive-data) — in production those logs
get collected into ELK/Splunk/etc and become a secret sprawl
source. This helper writes the credential to a 0600 file that only
the process user can read, and returns the path so the caller can
log **the path** (not the password) for the operator to pick up.
"""
from __future__ import annotations
import os
from pathlib import Path
from deerflow.config.paths import get_paths
_CREDENTIAL_FILENAME = "admin_initial_credentials.txt"
def write_initial_credentials(email: str, password: str, *, label: str = "initial") -> Path:
"""Write the admin email + password to ``{base_dir}/admin_initial_credentials.txt``.
The file is created **atomically** with mode 0600 via ``os.open``
so the password is never world-readable, even for the single syscall
window between ``write_text`` and ``chmod``.
``label`` distinguishes "initial" (fresh creation) from "reset"
(password reset) in the file header so an operator picking up the
file after a restart can tell which event produced it.
Returns the absolute :class:`Path` to the file.
"""
target = get_paths().base_dir / _CREDENTIAL_FILENAME
target.parent.mkdir(parents=True, exist_ok=True)
content = (
f"# DeerFlow admin {label} credentials\n# This file is generated on first boot or password reset.\n# Change the password after login via Settings -> Account,\n# then delete this file.\n#\nemail: {email}\npassword: {password}\n"
)
# Atomic 0600 create-or-truncate. O_TRUNC (not O_EXCL) so the
# reset-password path can rewrite an existing file without a
# separate unlink-then-create dance.
fd = os.open(target, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600)
with os.fdopen(fd, "w", encoding="utf-8") as fh:
fh.write(content)
return target.resolve()
-45
View File
@@ -1,45 +0,0 @@
"""Typed error definitions for auth module.
AuthErrorCode: exhaustive enum of all auth failure conditions.
TokenError: exhaustive enum of JWT decode failures.
AuthErrorResponse: structured error payload for HTTP responses.
"""
from enum import StrEnum
from pydantic import BaseModel
class AuthErrorCode(StrEnum):
"""Exhaustive list of auth error conditions."""
INVALID_CREDENTIALS = "invalid_credentials"
TOKEN_EXPIRED = "token_expired"
TOKEN_INVALID = "token_invalid"
USER_NOT_FOUND = "user_not_found"
EMAIL_ALREADY_EXISTS = "email_already_exists"
PROVIDER_NOT_FOUND = "provider_not_found"
NOT_AUTHENTICATED = "not_authenticated"
SYSTEM_ALREADY_INITIALIZED = "system_already_initialized"
class TokenError(StrEnum):
"""Exhaustive list of JWT decode failure reasons."""
EXPIRED = "expired"
INVALID_SIGNATURE = "invalid_signature"
MALFORMED = "malformed"
class AuthErrorResponse(BaseModel):
"""Structured error response — replaces bare `detail` strings."""
code: AuthErrorCode
message: str
def token_error_to_code(err: TokenError) -> AuthErrorCode:
"""Map TokenError to AuthErrorCode — single source of truth."""
if err == TokenError.EXPIRED:
return AuthErrorCode.TOKEN_EXPIRED
return AuthErrorCode.TOKEN_INVALID
-55
View File
@@ -1,55 +0,0 @@
"""JWT token creation and verification."""
from datetime import UTC, datetime, timedelta
import jwt
from pydantic import BaseModel
from app.gateway.auth.config import get_auth_config
from app.gateway.auth.errors import TokenError
class TokenPayload(BaseModel):
"""JWT token payload."""
sub: str # user_id
exp: datetime
iat: datetime | None = None
ver: int = 0 # token_version — must match User.token_version
def create_access_token(user_id: str, expires_delta: timedelta | None = None, token_version: int = 0) -> str:
"""Create a JWT access token.
Args:
user_id: The user's UUID as string
expires_delta: Optional custom expiry, defaults to 7 days
token_version: User's current token_version for invalidation
Returns:
Encoded JWT string
"""
config = get_auth_config()
expiry = expires_delta or timedelta(days=config.token_expiry_days)
now = datetime.now(UTC)
payload = {"sub": user_id, "exp": now + expiry, "iat": now, "ver": token_version}
return jwt.encode(payload, config.jwt_secret, algorithm="HS256")
def decode_token(token: str) -> TokenPayload | TokenError:
"""Decode and validate a JWT token.
Returns:
TokenPayload if valid, or a specific TokenError variant.
"""
config = get_auth_config()
try:
payload = jwt.decode(token, config.jwt_secret, algorithms=["HS256"])
return TokenPayload(**payload)
except jwt.ExpiredSignatureError:
return TokenError.EXPIRED
except jwt.InvalidSignatureError:
return TokenError.INVALID_SIGNATURE
except jwt.PyJWTError:
return TokenError.MALFORMED
-104
View File
@@ -1,104 +0,0 @@
"""Local email/password authentication provider."""
import logging
from app.gateway.auth.models import User
from app.gateway.auth.password import hash_password_async, needs_rehash, verify_password_async
from app.gateway.auth.providers import AuthProvider
from app.gateway.auth.repositories.base import UserRepository
logger = logging.getLogger(__name__)
class LocalAuthProvider(AuthProvider):
"""Email/password authentication provider using local database."""
def __init__(self, repository: UserRepository):
"""Initialize with a UserRepository.
Args:
repository: UserRepository implementation (SQLite)
"""
self._repo = repository
async def authenticate(self, credentials: dict) -> User | None:
"""Authenticate with email and password.
Args:
credentials: dict with 'email' and 'password' keys
Returns:
User if authentication succeeds, None otherwise
"""
email = credentials.get("email")
password = credentials.get("password")
if not email or not password:
return None
user = await self._repo.get_user_by_email(email)
if user is None:
return None
if user.password_hash is None:
# OAuth user without local password
return None
if not await verify_password_async(password, user.password_hash):
return None
if needs_rehash(user.password_hash):
try:
user.password_hash = await hash_password_async(password)
await self._repo.update_user(user)
except Exception:
# Rehash is an opportunistic upgrade; a transient DB error must not
# prevent an otherwise-valid login from succeeding.
logger.warning("Failed to rehash password for user %s; login will still succeed", user.email, exc_info=True)
return user
async def get_user(self, user_id: str) -> User | None:
"""Get user by ID."""
return await self._repo.get_user_by_id(user_id)
async def create_user(self, email: str, password: str | None = None, system_role: str = "user", needs_setup: bool = False) -> User:
"""Create a new local user.
Args:
email: User email address
password: Plain text password (will be hashed)
system_role: Role to assign ("admin" or "user")
needs_setup: If True, user must complete setup on first login
Returns:
Created User instance
"""
password_hash = await hash_password_async(password) if password else None
user = User(
email=email,
password_hash=password_hash,
system_role=system_role,
needs_setup=needs_setup,
)
return await self._repo.create_user(user)
async def get_user_by_oauth(self, provider: str, oauth_id: str) -> User | None:
"""Get user by OAuth provider and ID."""
return await self._repo.get_user_by_oauth(provider, oauth_id)
async def count_users(self) -> int:
"""Return total number of registered users."""
return await self._repo.count_users()
async def count_admin_users(self) -> int:
"""Return number of admin users."""
return await self._repo.count_admin_users()
async def update_user(self, user: User) -> User:
"""Update an existing user."""
return await self._repo.update_user(user)
async def get_user_by_email(self, email: str) -> User | None:
"""Get user by email."""
return await self._repo.get_user_by_email(email)
-41
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@@ -1,41 +0,0 @@
"""User Pydantic models for authentication."""
from datetime import UTC, datetime
from typing import Literal
from uuid import UUID, uuid4
from pydantic import BaseModel, ConfigDict, EmailStr, Field
def _utc_now() -> datetime:
"""Return current UTC time (timezone-aware)."""
return datetime.now(UTC)
class User(BaseModel):
"""Internal user representation."""
model_config = ConfigDict(from_attributes=True)
id: UUID = Field(default_factory=uuid4, description="Primary key")
email: EmailStr = Field(..., description="Unique email address")
password_hash: str | None = Field(None, description="bcrypt hash, nullable for OAuth users")
system_role: Literal["admin", "user"] = Field(default="user")
created_at: datetime = Field(default_factory=_utc_now)
# OAuth linkage (optional)
oauth_provider: str | None = Field(None, description="e.g. 'github', 'google'")
oauth_id: str | None = Field(None, description="User ID from OAuth provider")
# Auth lifecycle
needs_setup: bool = Field(default=False, description="True when a reset account must complete setup")
token_version: int = Field(default=0, description="Incremented on password change to invalidate old JWTs")
class UserResponse(BaseModel):
"""Response model for user info endpoint."""
id: str
email: str
system_role: Literal["admin", "user"]
needs_setup: bool = False
-81
View File
@@ -1,81 +0,0 @@
"""Password hashing utilities with versioned hash format.
Hash format: ``$dfv<N>$<bcrypt_hash>`` where ``<N>`` is the version.
- **v1** (legacy): ``bcrypt(password)`` — plain bcrypt, susceptible to
72-byte silent truncation.
- **v2** (current): ``bcrypt(b64(sha256(password)))`` — SHA-256 pre-hash
avoids the 72-byte truncation limit so the full password contributes
to the hash.
Verification auto-detects the version and falls back to v1 for hashes
without a prefix, so existing deployments upgrade transparently on next
login.
"""
import asyncio
import base64
import hashlib
import bcrypt
_CURRENT_VERSION = 2
_PREFIX_V2 = "$dfv2$"
_PREFIX_V1 = "$dfv1$"
def _pre_hash_v2(password: str) -> bytes:
"""SHA-256 pre-hash to bypass bcrypt's 72-byte limit."""
return base64.b64encode(hashlib.sha256(password.encode("utf-8")).digest())
def hash_password(password: str) -> str:
"""Hash a password (current version: v2 — SHA-256 + bcrypt)."""
raw = bcrypt.hashpw(_pre_hash_v2(password), bcrypt.gensalt()).decode("utf-8")
return f"{_PREFIX_V2}{raw}"
def verify_password(plain_password: str, hashed_password: str) -> bool:
"""Verify a password, auto-detecting the hash version.
Accepts v2 (``$dfv2$…``), v1 (``$dfv1$…``), and bare bcrypt hashes
(treated as v1 for backward compatibility with pre-versioning data).
"""
try:
if hashed_password.startswith(_PREFIX_V2):
bcrypt_hash = hashed_password[len(_PREFIX_V2) :]
return bcrypt.checkpw(_pre_hash_v2(plain_password), bcrypt_hash.encode("utf-8"))
if hashed_password.startswith(_PREFIX_V1):
bcrypt_hash = hashed_password[len(_PREFIX_V1) :]
else:
bcrypt_hash = hashed_password
return bcrypt.checkpw(plain_password.encode("utf-8"), bcrypt_hash.encode("utf-8"))
except ValueError:
# bcrypt raises ValueError for malformed or corrupt hashes (e.g., invalid salt).
# Fail closed rather than crashing the request.
return False
def needs_rehash(hashed_password: str) -> bool:
"""Return True if the hash uses an older version and should be rehashed."""
return not hashed_password.startswith(_PREFIX_V2)
async def hash_password_async(password: str) -> str:
"""Hash a password using bcrypt (non-blocking).
Wraps the blocking bcrypt operation in a thread pool to avoid
blocking the event loop during password hashing.
"""
return await asyncio.to_thread(hash_password, password)
async def verify_password_async(plain_password: str, hashed_password: str) -> bool:
"""Verify a password against its hash (non-blocking).
Wraps the blocking bcrypt operation in a thread pool to avoid
blocking the event loop during password verification.
"""
return await asyncio.to_thread(verify_password, plain_password, hashed_password)
-24
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@@ -1,24 +0,0 @@
"""Auth provider abstraction."""
from abc import ABC, abstractmethod
class AuthProvider(ABC):
"""Abstract base class for authentication providers."""
@abstractmethod
async def authenticate(self, credentials: dict) -> "User | None":
"""Authenticate user with given credentials.
Returns User if authentication succeeds, None otherwise.
"""
raise NotImplementedError
@abstractmethod
async def get_user(self, user_id: str) -> "User | None":
"""Retrieve user by ID."""
raise NotImplementedError
# Import User at runtime to avoid circular imports
from app.gateway.auth.models import User # noqa: E402
@@ -1,102 +0,0 @@
"""User repository interface for abstracting database operations."""
from abc import ABC, abstractmethod
from app.gateway.auth.models import User
class UserNotFoundError(LookupError):
"""Raised when a user repository operation targets a non-existent row.
Subclass of :class:`LookupError` so callers that already catch
``LookupError`` for "missing entity" can keep working unchanged,
while specific call sites can pin to this class to distinguish
"concurrent delete during update" from other lookups.
"""
class UserRepository(ABC):
"""Abstract interface for user data storage.
Implement this interface to support different storage backends
(SQLite)
"""
@abstractmethod
async def create_user(self, user: User) -> User:
"""Create a new user.
Args:
user: User object to create
Returns:
Created User with ID assigned
Raises:
ValueError: If email already exists
"""
raise NotImplementedError
@abstractmethod
async def get_user_by_id(self, user_id: str) -> User | None:
"""Get user by ID.
Args:
user_id: User UUID as string
Returns:
User if found, None otherwise
"""
raise NotImplementedError
@abstractmethod
async def get_user_by_email(self, email: str) -> User | None:
"""Get user by email.
Args:
email: User email address
Returns:
User if found, None otherwise
"""
raise NotImplementedError
@abstractmethod
async def update_user(self, user: User) -> User:
"""Update an existing user.
Args:
user: User object with updated fields
Returns:
Updated User
Raises:
UserNotFoundError: If no row exists for ``user.id``. This is
a hard failure (not a no-op) so callers cannot mistake a
concurrent-delete race for a successful update.
"""
raise NotImplementedError
@abstractmethod
async def count_users(self) -> int:
"""Return total number of registered users."""
raise NotImplementedError
@abstractmethod
async def count_admin_users(self) -> int:
"""Return number of users with system_role == 'admin'."""
raise NotImplementedError
@abstractmethod
async def get_user_by_oauth(self, provider: str, oauth_id: str) -> User | None:
"""Get user by OAuth provider and ID.
Args:
provider: OAuth provider name (e.g. 'github', 'google')
oauth_id: User ID from the OAuth provider
Returns:
User if found, None otherwise
"""
raise NotImplementedError
@@ -1,127 +0,0 @@
"""SQLAlchemy-backed UserRepository implementation.
Uses the shared async session factory from
``deerflow.persistence.engine`` — the ``users`` table lives in the
same database as ``threads_meta``, ``runs``, ``run_events``, and
``feedback``.
Constructor takes the session factory directly (same pattern as the
other four repositories in ``deerflow.persistence.*``). Callers
construct this after ``init_engine_from_config()`` has run.
"""
from __future__ import annotations
from datetime import UTC
from uuid import UUID
from sqlalchemy import func, select
from sqlalchemy.exc import IntegrityError
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
from app.gateway.auth.models import User
from app.gateway.auth.repositories.base import UserNotFoundError, UserRepository
from deerflow.persistence.user.model import UserRow
class SQLiteUserRepository(UserRepository):
"""Async user repository backed by the shared SQLAlchemy engine."""
def __init__(self, session_factory: async_sessionmaker[AsyncSession]) -> None:
self._sf = session_factory
# ── Converters ────────────────────────────────────────────────────
@staticmethod
def _row_to_user(row: UserRow) -> User:
return User(
id=UUID(row.id),
email=row.email,
password_hash=row.password_hash,
system_role=row.system_role, # type: ignore[arg-type]
# SQLite loses tzinfo on read; reattach UTC so downstream
# code can compare timestamps reliably.
created_at=row.created_at if row.created_at.tzinfo else row.created_at.replace(tzinfo=UTC),
oauth_provider=row.oauth_provider,
oauth_id=row.oauth_id,
needs_setup=row.needs_setup,
token_version=row.token_version,
)
@staticmethod
def _user_to_row(user: User) -> UserRow:
return UserRow(
id=str(user.id),
email=user.email,
password_hash=user.password_hash,
system_role=user.system_role,
created_at=user.created_at,
oauth_provider=user.oauth_provider,
oauth_id=user.oauth_id,
needs_setup=user.needs_setup,
token_version=user.token_version,
)
# ── CRUD ──────────────────────────────────────────────────────────
async def create_user(self, user: User) -> User:
"""Insert a new user. Raises ``ValueError`` on duplicate email."""
row = self._user_to_row(user)
async with self._sf() as session:
session.add(row)
try:
await session.commit()
except IntegrityError as exc:
await session.rollback()
raise ValueError(f"Email already registered: {user.email}") from exc
return user
async def get_user_by_id(self, user_id: str) -> User | None:
async with self._sf() as session:
row = await session.get(UserRow, user_id)
return self._row_to_user(row) if row is not None else None
async def get_user_by_email(self, email: str) -> User | None:
stmt = select(UserRow).where(UserRow.email == email)
async with self._sf() as session:
result = await session.execute(stmt)
row = result.scalar_one_or_none()
return self._row_to_user(row) if row is not None else None
async def update_user(self, user: User) -> User:
async with self._sf() as session:
row = await session.get(UserRow, str(user.id))
if row is None:
# Hard fail on concurrent delete: callers (reset_admin,
# password change handlers, _ensure_admin_user) all
# fetched the user just before this call, so a missing
# row here means the row vanished underneath us. Silent
# success would let the caller log "password reset" for
# a row that no longer exists.
raise UserNotFoundError(f"User {user.id} no longer exists")
row.email = user.email
row.password_hash = user.password_hash
row.system_role = user.system_role
row.oauth_provider = user.oauth_provider
row.oauth_id = user.oauth_id
row.needs_setup = user.needs_setup
row.token_version = user.token_version
await session.commit()
return user
async def count_users(self) -> int:
stmt = select(func.count()).select_from(UserRow)
async with self._sf() as session:
return await session.scalar(stmt) or 0
async def count_admin_users(self) -> int:
stmt = select(func.count()).select_from(UserRow).where(UserRow.system_role == "admin")
async with self._sf() as session:
return await session.scalar(stmt) or 0
async def get_user_by_oauth(self, provider: str, oauth_id: str) -> User | None:
stmt = select(UserRow).where(UserRow.oauth_provider == provider, UserRow.oauth_id == oauth_id)
async with self._sf() as session:
result = await session.execute(stmt)
row = result.scalar_one_or_none()
return self._row_to_user(row) if row is not None else None
-91
View File
@@ -1,91 +0,0 @@
"""CLI tool to reset an admin password.
Usage:
python -m app.gateway.auth.reset_admin
python -m app.gateway.auth.reset_admin --email admin@example.com
Writes the new password to ``.deer-flow/admin_initial_credentials.txt``
(mode 0600) instead of printing it, so CI / log aggregators never see
the cleartext secret.
"""
from __future__ import annotations
import argparse
import asyncio
import secrets
import sys
from sqlalchemy import select
from app.gateway.auth.credential_file import write_initial_credentials
from app.gateway.auth.password import hash_password
from app.gateway.auth.repositories.sqlite import SQLiteUserRepository
from deerflow.persistence.user.model import UserRow
async def _run(email: str | None) -> int:
from deerflow.config import get_app_config
from deerflow.persistence.engine import (
close_engine,
get_session_factory,
init_engine_from_config,
)
config = get_app_config()
await init_engine_from_config(config.database)
try:
sf = get_session_factory()
if sf is None:
print("Error: persistence engine not available (check config.database).", file=sys.stderr)
return 1
repo = SQLiteUserRepository(sf)
if email:
user = await repo.get_user_by_email(email)
else:
# Find first admin via direct SELECT — repository does not
# expose a "first admin" helper and we do not want to add
# one just for this CLI.
async with sf() as session:
stmt = select(UserRow).where(UserRow.system_role == "admin").limit(1)
row = (await session.execute(stmt)).scalar_one_or_none()
if row is None:
user = None
else:
user = await repo.get_user_by_id(row.id)
if user is None:
if email:
print(f"Error: user '{email}' not found.", file=sys.stderr)
else:
print("Error: no admin user found.", file=sys.stderr)
return 1
new_password = secrets.token_urlsafe(16)
user.password_hash = hash_password(new_password)
user.token_version += 1
user.needs_setup = True
await repo.update_user(user)
cred_path = write_initial_credentials(user.email, new_password, label="reset")
print(f"Password reset for: {user.email}")
print(f"Credentials written to: {cred_path} (mode 0600)")
print("Next login will require setup (new email + password).")
return 0
finally:
await close_engine()
def main() -> None:
parser = argparse.ArgumentParser(description="Reset admin password")
parser.add_argument("--email", help="Admin email (default: first admin found)")
args = parser.parse_args()
exit_code = asyncio.run(_run(args.email))
sys.exit(exit_code)
if __name__ == "__main__":
main()
-126
View File
@@ -1,126 +0,0 @@
"""Global authentication middleware — fail-closed safety net.
Rejects unauthenticated requests to non-public paths with 401. When a
request passes the cookie check, resolves the JWT payload to a real
``User`` object and stamps it into both ``request.state.user`` and the
``deerflow.runtime.user_context`` contextvar so that repository-layer
owner filtering works automatically via the sentinel pattern.
Fine-grained permission checks remain in authz.py decorators.
"""
from collections.abc import Callable
from fastapi import HTTPException, Request, Response
from starlette.middleware.base import BaseHTTPMiddleware
from starlette.responses import JSONResponse
from starlette.types import ASGIApp
from app.gateway.auth.errors import AuthErrorCode, AuthErrorResponse
from app.gateway.authz import _ALL_PERMISSIONS, AuthContext
from app.gateway.internal_auth import INTERNAL_AUTH_HEADER_NAME, get_internal_user, is_valid_internal_auth_token
from deerflow.runtime.user_context import reset_current_user, set_current_user
# Paths that never require authentication.
_PUBLIC_PATH_PREFIXES: tuple[str, ...] = (
"/health",
"/docs",
"/redoc",
"/openapi.json",
)
# Exact auth paths that are public (login/register/status check).
# /api/v1/auth/me, /api/v1/auth/change-password etc. are NOT public.
_PUBLIC_EXACT_PATHS: frozenset[str] = frozenset(
{
"/api/v1/auth/login/local",
"/api/v1/auth/register",
"/api/v1/auth/logout",
"/api/v1/auth/setup-status",
"/api/v1/auth/initialize",
}
)
def _is_public(path: str) -> bool:
stripped = path.rstrip("/")
if stripped in _PUBLIC_EXACT_PATHS:
return True
return any(path.startswith(prefix) for prefix in _PUBLIC_PATH_PREFIXES)
class AuthMiddleware(BaseHTTPMiddleware):
"""Strict auth gate: reject requests without a valid session.
Two-stage check for non-public paths:
1. Cookie presence — return 401 NOT_AUTHENTICATED if missing
2. JWT validation via ``get_optional_user_from_request`` — return 401
TOKEN_INVALID if the token is absent, malformed, expired, or the
signed user does not exist / is stale
On success, stamps ``request.state.user`` and the
``deerflow.runtime.user_context`` contextvar so that repository-layer
owner filters work downstream without every route needing a
``@require_auth`` decorator. Routes that need per-resource
authorization (e.g. "user A cannot read user B's thread by guessing
the URL") should additionally use ``@require_permission(...,
owner_check=True)`` for explicit enforcement — but authentication
itself is fully handled here.
"""
def __init__(self, app: ASGIApp) -> None:
super().__init__(app)
async def dispatch(self, request: Request, call_next: Callable) -> Response:
if _is_public(request.url.path):
return await call_next(request)
internal_user = None
if is_valid_internal_auth_token(request.headers.get(INTERNAL_AUTH_HEADER_NAME)):
internal_user = get_internal_user()
# Non-public path: require session cookie
if internal_user is None and not request.cookies.get("access_token"):
return JSONResponse(
status_code=401,
content={
"detail": AuthErrorResponse(
code=AuthErrorCode.NOT_AUTHENTICATED,
message="Authentication required",
).model_dump()
},
)
# Strict JWT validation: reject junk/expired tokens with 401
# right here instead of silently passing through. This closes
# the "junk cookie bypass" gap (AUTH_TEST_PLAN test 7.5.8):
# without this, non-isolation routes like /api/models would
# accept any cookie-shaped string as authentication.
#
# We call the *strict* resolver so that fine-grained error
# codes (token_expired, token_invalid, user_not_found, …)
# propagate from AuthErrorCode, not get flattened into one
# generic code. BaseHTTPMiddleware doesn't let HTTPException
# bubble up, so we catch and render it as JSONResponse here.
from app.gateway.deps import get_current_user_from_request
if internal_user is not None:
user = internal_user
else:
try:
user = await get_current_user_from_request(request)
except HTTPException as exc:
return JSONResponse(status_code=exc.status_code, content={"detail": exc.detail})
# Stamp both request.state.user (for the contextvar pattern)
# and request.state.auth (so @require_permission's "auth is
# None" branch short-circuits instead of running the entire
# JWT-decode + DB-lookup pipeline a second time per request).
request.state.user = user
request.state.auth = AuthContext(user=user, permissions=_ALL_PERMISSIONS)
token = set_current_user(user)
try:
return await call_next(request)
finally:
reset_current_user(token)
-301
View File
@@ -1,301 +0,0 @@
"""Authorization decorators and context for DeerFlow.
Inspired by LangGraph Auth system: https://github.com/langchain-ai/langgraph/blob/main/libs/sdk-py/langgraph_sdk/auth/__init__.py
**Usage:**
1. Use ``@require_auth`` on routes that need authentication
2. Use ``@require_permission("resource", "action", filter_key=...)`` for permission checks
3. The decorator chain processes from bottom to top
**Example:**
@router.get("/{thread_id}")
@require_auth
@require_permission("threads", "read", owner_check=True)
async def get_thread(thread_id: str, request: Request):
# User is authenticated and has threads:read permission
...
**Permission Model:**
- threads:read - View thread
- threads:write - Create/update thread
- threads:delete - Delete thread
- runs:create - Run agent
- runs:read - View run
- runs:cancel - Cancel run
"""
from __future__ import annotations
import functools
import inspect
from collections.abc import Callable
from types import SimpleNamespace
from typing import TYPE_CHECKING, Any, ParamSpec, TypeVar
from fastapi import HTTPException, Request
if TYPE_CHECKING:
from app.gateway.auth.models import User
P = ParamSpec("P")
T = TypeVar("T")
# Permission constants
class Permissions:
"""Permission constants for resource:action format."""
# Threads
THREADS_READ = "threads:read"
THREADS_WRITE = "threads:write"
THREADS_DELETE = "threads:delete"
# Runs
RUNS_CREATE = "runs:create"
RUNS_READ = "runs:read"
RUNS_CANCEL = "runs:cancel"
class AuthContext:
"""Authentication context for the current request.
Stored in request.state.auth after require_auth decoration.
Attributes:
user: The authenticated user, or None if anonymous
permissions: List of permission strings (e.g., "threads:read")
"""
__slots__ = ("user", "permissions")
def __init__(self, user: User | None = None, permissions: list[str] | None = None):
self.user = user
self.permissions = permissions or []
@property
def is_authenticated(self) -> bool:
"""Check if user is authenticated."""
return self.user is not None
def has_permission(self, resource: str, action: str) -> bool:
"""Check if context has permission for resource:action.
Args:
resource: Resource name (e.g., "threads")
action: Action name (e.g., "read")
Returns:
True if user has permission
"""
permission = f"{resource}:{action}"
return permission in self.permissions
def require_user(self) -> User:
"""Get user or raise 401.
Raises:
HTTPException 401 if not authenticated
"""
if not self.user:
raise HTTPException(status_code=401, detail="Authentication required")
return self.user
def get_auth_context(request: Request) -> AuthContext | None:
"""Get AuthContext from request state."""
return getattr(request.state, "auth", None)
_ALL_PERMISSIONS: list[str] = [
Permissions.THREADS_READ,
Permissions.THREADS_WRITE,
Permissions.THREADS_DELETE,
Permissions.RUNS_CREATE,
Permissions.RUNS_READ,
Permissions.RUNS_CANCEL,
]
def _make_test_request_stub() -> Any:
"""Create a minimal request-like object for direct unit calls.
Used when decorated route handlers are invoked without FastAPI's
request injection. Includes fields accessed by auth helpers.
"""
return SimpleNamespace(state=SimpleNamespace(), cookies={}, _deerflow_test_bypass_auth=True)
async def _authenticate(request: Request) -> AuthContext:
"""Authenticate request and return AuthContext.
Delegates to deps.get_optional_user_from_request() for the JWT→User pipeline.
Returns AuthContext with user=None for anonymous requests.
"""
from app.gateway.deps import get_optional_user_from_request
user = await get_optional_user_from_request(request)
if user is None:
return AuthContext(user=None, permissions=[])
# In future, permissions could be stored in user record
return AuthContext(user=user, permissions=_ALL_PERMISSIONS)
def require_auth[**P, T](func: Callable[P, T]) -> Callable[P, T]:
"""Decorator that authenticates the request and enforces authentication.
Independently raises HTTP 401 for unauthenticated requests, regardless of
whether ``AuthMiddleware`` is present in the ASGI stack. Sets the resolved
``AuthContext`` on ``request.state.auth`` for downstream handlers.
Must be placed ABOVE other decorators (executes after them).
Usage:
@router.get("/{thread_id}")
@require_auth # Bottom decorator (executes first after permission check)
@require_permission("threads", "read")
async def get_thread(thread_id: str, request: Request):
auth: AuthContext = request.state.auth
...
Raises:
HTTPException: 401 if the request is unauthenticated.
ValueError: If 'request' parameter is missing.
"""
@functools.wraps(func)
async def wrapper(*args: Any, **kwargs: Any) -> Any:
request = kwargs.get("request")
if request is None:
# Unit tests may call decorated handlers directly without a
# FastAPI Request object. Inject a minimal request stub when
# the wrapped function declares `request`.
if "request" in inspect.signature(func).parameters:
kwargs["request"] = _make_test_request_stub()
else:
raise ValueError("require_auth decorator requires 'request' parameter")
request = kwargs["request"]
if getattr(request, "_deerflow_test_bypass_auth", False):
return await func(*args, **kwargs)
# Authenticate and set context
auth_context = await _authenticate(request)
request.state.auth = auth_context
if not auth_context.is_authenticated:
raise HTTPException(status_code=401, detail="Authentication required")
return await func(*args, **kwargs)
return wrapper
def require_permission(
resource: str,
action: str,
owner_check: bool = False,
require_existing: bool = False,
) -> Callable[[Callable[P, T]], Callable[P, T]]:
"""Decorator that checks permission for resource:action.
Must be used AFTER @require_auth.
Args:
resource: Resource name (e.g., "threads", "runs")
action: Action name (e.g., "read", "write", "delete")
owner_check: If True, validates that the current user owns the resource.
Requires 'thread_id' path parameter and performs ownership check.
require_existing: Only meaningful with ``owner_check=True``. If True, a
missing ``threads_meta`` row counts as a denial (404)
instead of "untracked legacy thread, allow". Use on
**destructive / mutating** routes (DELETE, PATCH,
state-update) so a deleted thread can't be re-targeted
by another user via the missing-row code path.
Usage:
# Read-style: legacy untracked threads are allowed
@require_permission("threads", "read", owner_check=True)
async def get_thread(thread_id: str, request: Request):
...
# Destructive: thread row MUST exist and be owned by caller
@require_permission("threads", "delete", owner_check=True, require_existing=True)
async def delete_thread(thread_id: str, request: Request):
...
Raises:
HTTPException 401: If authentication required but user is anonymous
HTTPException 403: If user lacks permission
HTTPException 404: If owner_check=True but user doesn't own the thread
ValueError: If owner_check=True but 'thread_id' parameter is missing
"""
def decorator(func: Callable[P, T]) -> Callable[P, T]:
@functools.wraps(func)
async def wrapper(*args: Any, **kwargs: Any) -> Any:
request = kwargs.get("request")
if request is None:
# Unit tests may call decorated route handlers directly without
# constructing a FastAPI Request object. Inject a minimal stub
# when the wrapped function declares `request`.
if "request" in inspect.signature(func).parameters:
kwargs["request"] = _make_test_request_stub()
else:
return await func(*args, **kwargs)
request = kwargs["request"]
if getattr(request, "_deerflow_test_bypass_auth", False):
return await func(*args, **kwargs)
auth: AuthContext = getattr(request.state, "auth", None)
if auth is None:
auth = await _authenticate(request)
request.state.auth = auth
if not auth.is_authenticated:
raise HTTPException(status_code=401, detail="Authentication required")
# Check permission
if not auth.has_permission(resource, action):
raise HTTPException(
status_code=403,
detail=f"Permission denied: {resource}:{action}",
)
# Owner check for thread-specific resources.
#
# 2.0-rc moved thread metadata into the SQL persistence layer
# (``threads_meta`` table). We verify ownership via
# ``ThreadMetaStore.check_access``: it returns True for
# missing rows (untracked legacy thread) and for rows whose
# ``user_id`` is NULL (shared / pre-auth data), so this is
# strict-deny rather than strict-allow — only an *existing*
# row with a *different* user_id triggers 404.
if owner_check:
thread_id = kwargs.get("thread_id")
if thread_id is None:
raise ValueError("require_permission with owner_check=True requires 'thread_id' parameter")
from app.gateway.deps import get_thread_store
thread_store = get_thread_store(request)
allowed = await thread_store.check_access(
thread_id,
str(auth.user.id),
require_existing=require_existing,
)
if not allowed:
raise HTTPException(
status_code=404,
detail=f"Thread {thread_id} not found",
)
return await func(*args, **kwargs)
return wrapper
return decorator
+3 -2
View File
@@ -8,7 +8,7 @@ class GatewayConfig(BaseModel):
host: str = Field(default="0.0.0.0", description="Host to bind the gateway server")
port: int = Field(default=8001, description="Port to bind the gateway server")
enable_docs: bool = Field(default=True, description="Enable Swagger/ReDoc/OpenAPI endpoints")
cors_origins: list[str] = Field(default_factory=lambda: ["http://localhost:3000"], description="Allowed CORS origins")
_gateway_config: GatewayConfig | None = None
@@ -18,9 +18,10 @@ def get_gateway_config() -> GatewayConfig:
"""Get gateway config, loading from environment if available."""
global _gateway_config
if _gateway_config is None:
cors_origins_str = os.getenv("CORS_ORIGINS", "http://localhost:3000")
_gateway_config = GatewayConfig(
host=os.getenv("GATEWAY_HOST", "0.0.0.0"),
port=int(os.getenv("GATEWAY_PORT", "8001")),
enable_docs=os.getenv("GATEWAY_ENABLE_DOCS", "true").lower() == "true",
cors_origins=cors_origins_str.split(","),
)
return _gateway_config
-229
View File
@@ -1,229 +0,0 @@
"""CSRF protection middleware for FastAPI.
Per RFC-001:
State-changing operations require CSRF protection.
"""
import os
import secrets
from collections.abc import Awaitable, Callable
from urllib.parse import urlsplit
from fastapi import Request, Response
from starlette.middleware.base import BaseHTTPMiddleware
from starlette.responses import JSONResponse
from starlette.types import ASGIApp
CSRF_COOKIE_NAME = "csrf_token"
CSRF_HEADER_NAME = "X-CSRF-Token"
CSRF_TOKEN_LENGTH = 64 # bytes
def is_secure_request(request: Request) -> bool:
"""Detect whether the original client request was made over HTTPS."""
return _request_scheme(request) == "https"
def generate_csrf_token() -> str:
"""Generate a secure random CSRF token."""
return secrets.token_urlsafe(CSRF_TOKEN_LENGTH)
def should_check_csrf(request: Request) -> bool:
"""Determine if a request needs CSRF validation.
CSRF is checked for state-changing methods (POST, PUT, DELETE, PATCH).
GET, HEAD, OPTIONS, and TRACE are exempt per RFC 7231.
"""
if request.method not in ("POST", "PUT", "DELETE", "PATCH"):
return False
path = request.url.path.rstrip("/")
# Exempt /api/v1/auth/me endpoint
if path == "/api/v1/auth/me":
return False
return True
_AUTH_EXEMPT_PATHS: frozenset[str] = frozenset(
{
"/api/v1/auth/login/local",
"/api/v1/auth/logout",
"/api/v1/auth/register",
"/api/v1/auth/initialize",
}
)
def is_auth_endpoint(request: Request) -> bool:
"""Check if the request is to an auth endpoint.
Auth endpoints don't need CSRF validation on first call (no token).
"""
return request.url.path.rstrip("/") in _AUTH_EXEMPT_PATHS
def _host_with_optional_port(hostname: str, port: int | None, scheme: str) -> str:
"""Return normalized host[:port], omitting default ports."""
host = hostname.lower()
if ":" in host and not host.startswith("["):
host = f"[{host}]"
if port is None or (scheme == "http" and port == 80) or (scheme == "https" and port == 443):
return host
return f"{host}:{port}"
def _normalize_origin(origin: str) -> str | None:
"""Return a normalized scheme://host[:port] origin, or None for invalid input."""
try:
parsed = urlsplit(origin.strip())
port = parsed.port
except ValueError:
return None
scheme = parsed.scheme.lower()
if scheme not in {"http", "https"} or not parsed.hostname:
return None
# Browser Origin is only scheme/host/port. Reject URL-shaped or credentialed values.
if parsed.username or parsed.password or parsed.path or parsed.query or parsed.fragment:
return None
return f"{scheme}://{_host_with_optional_port(parsed.hostname, port, scheme)}"
def _configured_cors_origins() -> set[str]:
"""Return explicit configured browser origins that may call auth routes."""
origins = set()
for raw_origin in os.environ.get("GATEWAY_CORS_ORIGINS", "").split(","):
origin = raw_origin.strip()
if not origin or origin == "*":
continue
normalized = _normalize_origin(origin)
if normalized:
origins.add(normalized)
return origins
def get_configured_cors_origins() -> set[str]:
"""Return normalized explicit browser origins from GATEWAY_CORS_ORIGINS."""
return _configured_cors_origins()
def _first_header_value(value: str | None) -> str | None:
"""Return the first value from a comma-separated proxy header."""
if not value:
return None
first = value.split(",", 1)[0].strip()
return first or None
def _forwarded_param(request: Request, name: str) -> str | None:
"""Extract a parameter from the first RFC 7239 Forwarded header entry."""
forwarded = _first_header_value(request.headers.get("forwarded"))
if not forwarded:
return None
for part in forwarded.split(";"):
key, sep, value = part.strip().partition("=")
if sep and key.lower() == name:
return value.strip().strip('"') or None
return None
def _request_scheme(request: Request) -> str:
"""Resolve the original request scheme from trusted proxy headers."""
scheme = _forwarded_param(request, "proto") or _first_header_value(request.headers.get("x-forwarded-proto")) or request.url.scheme
return scheme.lower()
def _request_origin(request: Request) -> str | None:
"""Build the origin for the URL the browser is targeting."""
scheme = _request_scheme(request)
host = _forwarded_param(request, "host") or _first_header_value(request.headers.get("x-forwarded-host")) or request.headers.get("host") or request.url.netloc
forwarded_port = _first_header_value(request.headers.get("x-forwarded-port"))
if forwarded_port and ":" not in host.rsplit("]", 1)[-1]:
host = f"{host}:{forwarded_port}"
return _normalize_origin(f"{scheme}://{host}")
def is_allowed_auth_origin(request: Request) -> bool:
"""Allow auth POSTs only from the same origin or explicit configured origins.
Login/register/initialize are exempt from the double-submit token because
first-time browser clients do not have a CSRF token yet. They still create
a session cookie, so browser requests with a hostile Origin header must be
rejected to prevent login CSRF / session fixation. Requests without Origin
are allowed for non-browser clients such as curl and mobile integrations.
"""
origin = request.headers.get("origin")
if not origin:
return True
normalized_origin = _normalize_origin(origin)
if normalized_origin is None:
return False
request_origin = _request_origin(request)
return normalized_origin in _configured_cors_origins() or (request_origin is not None and normalized_origin == request_origin)
class CSRFMiddleware(BaseHTTPMiddleware):
"""Middleware that implements CSRF protection using Double Submit Cookie pattern."""
def __init__(self, app: ASGIApp) -> None:
super().__init__(app)
async def dispatch(self, request: Request, call_next: Callable[[Request], Awaitable[Response]]) -> Response:
_is_auth = is_auth_endpoint(request)
if should_check_csrf(request) and _is_auth and not is_allowed_auth_origin(request):
return JSONResponse(
status_code=403,
content={"detail": "Cross-site auth request denied."},
)
if should_check_csrf(request) and not _is_auth:
cookie_token = request.cookies.get(CSRF_COOKIE_NAME)
header_token = request.headers.get(CSRF_HEADER_NAME)
if not cookie_token or not header_token:
return JSONResponse(
status_code=403,
content={"detail": "CSRF token missing. Include X-CSRF-Token header."},
)
if not secrets.compare_digest(cookie_token, header_token):
return JSONResponse(
status_code=403,
content={"detail": "CSRF token mismatch."},
)
response = await call_next(request)
# For auth endpoints that set up session, also set CSRF cookie
if _is_auth and request.method == "POST":
# Generate a new CSRF token for the session
csrf_token = generate_csrf_token()
is_https = is_secure_request(request)
response.set_cookie(
key=CSRF_COOKIE_NAME,
value=csrf_token,
httponly=False, # Must be JS-readable for Double Submit Cookie pattern
secure=is_https,
samesite="strict",
)
return response
def get_csrf_token(request: Request) -> str | None:
"""Get the CSRF token from the current request's cookies.
This is useful for server-side rendering where you need to embed
token in forms or headers.
"""
return request.cookies.get(CSRF_COOKIE_NAME)
+28 -203
View File
@@ -8,34 +8,12 @@ Initialization is handled directly in ``app.py`` via :class:`AsyncExitStack`.
from __future__ import annotations
from collections.abc import AsyncGenerator, Callable
from collections.abc import AsyncGenerator
from contextlib import AsyncExitStack, asynccontextmanager
from typing import TYPE_CHECKING, TypeVar, cast
from fastapi import FastAPI, HTTPException, Request
from langgraph.types import Checkpointer
from deerflow.config.app_config import AppConfig
from deerflow.persistence.feedback import FeedbackRepository
from deerflow.runtime import RunContext, RunManager, StreamBridge
from deerflow.runtime.events.store.base import RunEventStore
from deerflow.runtime.runs.store.base import RunStore
if TYPE_CHECKING:
from app.gateway.auth.local_provider import LocalAuthProvider
from app.gateway.auth.repositories.sqlite import SQLiteUserRepository
from deerflow.persistence.thread_meta.base import ThreadMetaStore
T = TypeVar("T")
def get_config(request: Request) -> AppConfig:
"""Return the app-scoped ``AppConfig`` stored on ``app.state``."""
config = getattr(request.app.state, "config", None)
if config is None:
raise HTTPException(status_code=503, detail="Configuration not available")
return config
from deerflow.runtime import RunManager, StreamBridge
@asynccontextmanager
@@ -47,54 +25,15 @@ async def langgraph_runtime(app: FastAPI) -> AsyncGenerator[None, None]:
async with langgraph_runtime(app):
yield
"""
from deerflow.persistence.engine import close_engine, get_session_factory, init_engine_from_config
from deerflow.agents.checkpointer.async_provider import make_checkpointer
from deerflow.runtime import make_store, make_stream_bridge
from deerflow.runtime.checkpointer.async_provider import make_checkpointer
from deerflow.runtime.events.store import make_run_event_store
async with AsyncExitStack() as stack:
config = getattr(app.state, "config", None)
if config is None:
raise RuntimeError("langgraph_runtime() requires app.state.config to be initialized")
app.state.stream_bridge = await stack.enter_async_context(make_stream_bridge(config))
# Initialize persistence engine BEFORE checkpointer so that
# auto-create-database logic runs first (postgres backend).
await init_engine_from_config(config.database)
app.state.checkpointer = await stack.enter_async_context(make_checkpointer(config))
app.state.store = await stack.enter_async_context(make_store(config))
# Initialize repositories — one get_session_factory() call for all.
sf = get_session_factory()
if sf is not None:
from deerflow.persistence.feedback import FeedbackRepository
from deerflow.persistence.run import RunRepository
app.state.run_store = RunRepository(sf)
app.state.feedback_repo = FeedbackRepository(sf)
else:
from deerflow.runtime.runs.store.memory import MemoryRunStore
app.state.run_store = MemoryRunStore()
app.state.feedback_repo = None
from deerflow.persistence.thread_meta import make_thread_store
app.state.thread_store = make_thread_store(sf, app.state.store)
# Run event store (has its own factory with config-driven backend selection)
run_events_config = getattr(config, "run_events", None)
app.state.run_event_store = make_run_event_store(run_events_config)
# RunManager with store backing for persistence
app.state.run_manager = RunManager(store=app.state.run_store)
try:
yield
finally:
await close_engine()
app.state.stream_bridge = await stack.enter_async_context(make_stream_bridge())
app.state.checkpointer = await stack.enter_async_context(make_checkpointer())
app.state.store = await stack.enter_async_context(make_store())
app.state.run_manager = RunManager()
yield
# ---------------------------------------------------------------------------
@@ -102,144 +41,30 @@ async def langgraph_runtime(app: FastAPI) -> AsyncGenerator[None, None]:
# ---------------------------------------------------------------------------
def _require(attr: str, label: str) -> Callable[[Request], T]:
"""Create a FastAPI dependency that returns ``app.state.<attr>`` or 503."""
def dep(request: Request) -> T:
val = getattr(request.app.state, attr, None)
if val is None:
raise HTTPException(status_code=503, detail=f"{label} not available")
return cast(T, val)
dep.__name__ = dep.__qualname__ = f"get_{attr}"
return dep
def get_stream_bridge(request: Request) -> StreamBridge:
"""Return the global :class:`StreamBridge`, or 503."""
bridge = getattr(request.app.state, "stream_bridge", None)
if bridge is None:
raise HTTPException(status_code=503, detail="Stream bridge not available")
return bridge
get_stream_bridge: Callable[[Request], StreamBridge] = _require("stream_bridge", "Stream bridge")
get_run_manager: Callable[[Request], RunManager] = _require("run_manager", "Run manager")
get_checkpointer: Callable[[Request], Checkpointer] = _require("checkpointer", "Checkpointer")
get_run_event_store: Callable[[Request], RunEventStore] = _require("run_event_store", "Run event store")
get_feedback_repo: Callable[[Request], FeedbackRepository] = _require("feedback_repo", "Feedback")
get_run_store: Callable[[Request], RunStore] = _require("run_store", "Run store")
def get_run_manager(request: Request) -> RunManager:
"""Return the global :class:`RunManager`, or 503."""
mgr = getattr(request.app.state, "run_manager", None)
if mgr is None:
raise HTTPException(status_code=503, detail="Run manager not available")
return mgr
def get_checkpointer(request: Request):
"""Return the global checkpointer, or 503."""
cp = getattr(request.app.state, "checkpointer", None)
if cp is None:
raise HTTPException(status_code=503, detail="Checkpointer not available")
return cp
def get_store(request: Request):
"""Return the global store (may be ``None`` if not configured)."""
return getattr(request.app.state, "store", None)
def get_thread_store(request: Request) -> ThreadMetaStore:
"""Return the thread metadata store (SQL or memory-backed)."""
val = getattr(request.app.state, "thread_store", None)
if val is None:
raise HTTPException(status_code=503, detail="Thread metadata store not available")
return val
def get_run_context(request: Request) -> RunContext:
"""Build a :class:`RunContext` from ``app.state`` singletons.
Returns a *base* context with infrastructure dependencies.
"""
config = get_config(request)
return RunContext(
checkpointer=get_checkpointer(request),
store=get_store(request),
event_store=get_run_event_store(request),
run_events_config=getattr(config, "run_events", None),
thread_store=get_thread_store(request),
app_config=config,
)
# ---------------------------------------------------------------------------
# Auth helpers (used by authz.py and auth middleware)
# ---------------------------------------------------------------------------
# Cached singletons to avoid repeated instantiation per request
_cached_local_provider: LocalAuthProvider | None = None
_cached_repo: SQLiteUserRepository | None = None
def get_local_provider() -> LocalAuthProvider:
"""Get or create the cached LocalAuthProvider singleton.
Must be called after ``init_engine_from_config()`` — the shared
session factory is required to construct the user repository.
"""
global _cached_local_provider, _cached_repo
if _cached_repo is None:
from app.gateway.auth.repositories.sqlite import SQLiteUserRepository
from deerflow.persistence.engine import get_session_factory
sf = get_session_factory()
if sf is None:
raise RuntimeError("get_local_provider() called before init_engine_from_config(); cannot access users table")
_cached_repo = SQLiteUserRepository(sf)
if _cached_local_provider is None:
from app.gateway.auth.local_provider import LocalAuthProvider
_cached_local_provider = LocalAuthProvider(repository=_cached_repo)
return _cached_local_provider
async def get_current_user_from_request(request: Request):
"""Get the current authenticated user from the request cookie.
Raises HTTPException 401 if not authenticated.
"""
from app.gateway.auth import decode_token
from app.gateway.auth.errors import AuthErrorCode, AuthErrorResponse, TokenError, token_error_to_code
access_token = request.cookies.get("access_token")
if not access_token:
raise HTTPException(
status_code=401,
detail=AuthErrorResponse(code=AuthErrorCode.NOT_AUTHENTICATED, message="Not authenticated").model_dump(),
)
payload = decode_token(access_token)
if isinstance(payload, TokenError):
raise HTTPException(
status_code=401,
detail=AuthErrorResponse(code=token_error_to_code(payload), message=f"Token error: {payload.value}").model_dump(),
)
provider = get_local_provider()
user = await provider.get_user(payload.sub)
if user is None:
raise HTTPException(
status_code=401,
detail=AuthErrorResponse(code=AuthErrorCode.USER_NOT_FOUND, message="User not found").model_dump(),
)
# Token version mismatch → password was changed, token is stale
if user.token_version != payload.ver:
raise HTTPException(
status_code=401,
detail=AuthErrorResponse(code=AuthErrorCode.TOKEN_INVALID, message="Token revoked (password changed)").model_dump(),
)
return user
async def get_optional_user_from_request(request: Request):
"""Get optional authenticated user from request.
Returns None if not authenticated.
"""
try:
return await get_current_user_from_request(request)
except HTTPException:
return None
async def get_current_user(request: Request) -> str | None:
"""Extract user_id from request cookie, or None if not authenticated.
Thin adapter that returns the string id for callers that only need
identification (e.g., ``feedback.py``). Full-user callers should use
``get_current_user_from_request`` or ``get_optional_user_from_request``.
"""
user = await get_optional_user_from_request(request)
return str(user.id) if user else None
-26
View File
@@ -1,26 +0,0 @@
"""Process-local authentication for Gateway internal callers."""
from __future__ import annotations
import secrets
from types import SimpleNamespace
from deerflow.runtime.user_context import DEFAULT_USER_ID
INTERNAL_AUTH_HEADER_NAME = "X-DeerFlow-Internal-Token"
_INTERNAL_AUTH_TOKEN = secrets.token_urlsafe(32)
def create_internal_auth_headers() -> dict[str, str]:
"""Return headers that authenticate same-process Gateway internal calls."""
return {INTERNAL_AUTH_HEADER_NAME: _INTERNAL_AUTH_TOKEN}
def is_valid_internal_auth_token(token: str | None) -> bool:
"""Return True when *token* matches the process-local internal token."""
return bool(token) and secrets.compare_digest(token, _INTERNAL_AUTH_TOKEN)
def get_internal_user():
"""Return the synthetic user used for trusted internal channel calls."""
return SimpleNamespace(id=DEFAULT_USER_ID, system_role="internal")
-110
View File
@@ -1,110 +0,0 @@
"""LangGraph compatibility auth handler — shares JWT logic with Gateway.
The default DeerFlow runtime is embedded in the FastAPI Gateway; scripts and
Docker deployments do not load this module. It is retained for LangGraph
tooling, Studio, or direct LangGraph Server compatibility through
``langgraph.json``'s ``auth.path``.
When that compatibility path is used, this module reuses the same JWT and CSRF
rules as Gateway so both modes validate sessions consistently.
Two layers:
1. @auth.authenticate — validates JWT cookie, extracts user_id,
and enforces CSRF on state-changing methods (POST/PUT/DELETE/PATCH)
2. @auth.on — returns metadata filter so each user only sees own threads
"""
import secrets
from langgraph_sdk import Auth
from app.gateway.auth.errors import TokenError
from app.gateway.auth.jwt import decode_token
from app.gateway.deps import get_local_provider
auth = Auth()
# Methods that require CSRF validation (state-changing per RFC 7231).
_CSRF_METHODS = frozenset({"POST", "PUT", "DELETE", "PATCH"})
def _check_csrf(request) -> None:
"""Enforce Double Submit Cookie CSRF check for state-changing requests.
Mirrors Gateway's CSRFMiddleware logic so that LangGraph routes
proxied directly by nginx have the same CSRF protection.
"""
method = getattr(request, "method", "") or ""
if method.upper() not in _CSRF_METHODS:
return
cookie_token = request.cookies.get("csrf_token")
header_token = request.headers.get("x-csrf-token")
if not cookie_token or not header_token:
raise Auth.exceptions.HTTPException(
status_code=403,
detail="CSRF token missing. Include X-CSRF-Token header.",
)
if not secrets.compare_digest(cookie_token, header_token):
raise Auth.exceptions.HTTPException(
status_code=403,
detail="CSRF token mismatch.",
)
@auth.authenticate
async def authenticate(request):
"""Validate the session cookie, decode JWT, and check token_version.
Same validation chain as Gateway's get_current_user_from_request:
cookie → decode JWT → DB lookup → token_version match
Also enforces CSRF on state-changing methods.
"""
# CSRF check before authentication so forged cross-site requests
# are rejected early, even if the cookie carries a valid JWT.
_check_csrf(request)
token = request.cookies.get("access_token")
if not token:
raise Auth.exceptions.HTTPException(
status_code=401,
detail="Not authenticated",
)
payload = decode_token(token)
if isinstance(payload, TokenError):
raise Auth.exceptions.HTTPException(
status_code=401,
detail="Invalid token",
)
user = await get_local_provider().get_user(payload.sub)
if user is None:
raise Auth.exceptions.HTTPException(
status_code=401,
detail="User not found",
)
if user.token_version != payload.ver:
raise Auth.exceptions.HTTPException(
status_code=401,
detail="Token revoked (password changed)",
)
return payload.sub
@auth.on
async def add_owner_filter(ctx: Auth.types.AuthContext, value: dict):
"""Inject user_id metadata on writes; filter by user_id on reads.
Gateway stores thread ownership as ``metadata.user_id``.
This handler ensures LangGraph Server enforces the same isolation.
"""
# On create/update: stamp user_id into metadata
metadata = value.setdefault("metadata", {})
metadata["user_id"] = ctx.user.identity
# Return filter dict — LangGraph applies it to search/read/delete
return {"user_id": ctx.user.identity}
+1 -2
View File
@@ -5,7 +5,6 @@ from pathlib import Path
from fastapi import HTTPException
from deerflow.config.paths import get_paths
from deerflow.runtime.user_context import get_effective_user_id
def resolve_thread_virtual_path(thread_id: str, virtual_path: str) -> Path:
@@ -23,7 +22,7 @@ def resolve_thread_virtual_path(thread_id: str, virtual_path: str) -> Path:
HTTPException: If the path is invalid or outside allowed directories.
"""
try:
return get_paths().resolve_virtual_path(thread_id, virtual_path, user_id=get_effective_user_id())
return get_paths().resolve_virtual_path(thread_id, virtual_path)
except ValueError as e:
status = 403 if "traversal" in str(e) else 400
raise HTTPException(status_code=status, detail=str(e))
+22 -85
View File
@@ -8,10 +8,8 @@ import yaml
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel, Field
from deerflow.config.agents_api_config import get_agents_api_config
from deerflow.config.agents_config import AgentConfig, list_custom_agents, load_agent_config, load_agent_soul
from deerflow.config.paths import get_paths
from deerflow.runtime.user_context import get_effective_user_id
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api", tags=["agents"])
@@ -26,7 +24,6 @@ class AgentResponse(BaseModel):
description: str = Field(default="", description="Agent description")
model: str | None = Field(default=None, description="Optional model override")
tool_groups: list[str] | None = Field(default=None, description="Optional tool group whitelist")
skills: list[str] | None = Field(default=None, description="Optional skill whitelist (None=all, []=none)")
soul: str | None = Field(default=None, description="SOUL.md content")
@@ -43,7 +40,6 @@ class AgentCreateRequest(BaseModel):
description: str = Field(default="", description="Agent description")
model: str | None = Field(default=None, description="Optional model override")
tool_groups: list[str] | None = Field(default=None, description="Optional tool group whitelist")
skills: list[str] | None = Field(default=None, description="Optional skill whitelist (None=all enabled, []=none)")
soul: str = Field(default="", description="SOUL.md content — agent personality and behavioral guardrails")
@@ -53,7 +49,6 @@ class AgentUpdateRequest(BaseModel):
description: str | None = Field(default=None, description="Updated description")
model: str | None = Field(default=None, description="Updated model override")
tool_groups: list[str] | None = Field(default=None, description="Updated tool group whitelist")
skills: list[str] | None = Field(default=None, description="Updated skill whitelist (None=all, []=none)")
soul: str | None = Field(default=None, description="Updated SOUL.md content")
@@ -78,27 +73,17 @@ def _normalize_agent_name(name: str) -> str:
return name.lower()
def _require_agents_api_enabled() -> None:
"""Reject access unless the custom-agent management API is explicitly enabled."""
if not get_agents_api_config().enabled:
raise HTTPException(
status_code=403,
detail=("Custom-agent management API is disabled. Set agents_api.enabled=true to expose agent and user-profile routes over HTTP."),
)
def _agent_config_to_response(agent_cfg: AgentConfig, include_soul: bool = False, *, user_id: str | None = None) -> AgentResponse:
def _agent_config_to_response(agent_cfg: AgentConfig, include_soul: bool = False) -> AgentResponse:
"""Convert AgentConfig to AgentResponse."""
soul: str | None = None
if include_soul:
soul = load_agent_soul(agent_cfg.name, user_id=user_id) or ""
soul = load_agent_soul(agent_cfg.name) or ""
return AgentResponse(
name=agent_cfg.name,
description=agent_cfg.description,
model=agent_cfg.model,
tool_groups=agent_cfg.tool_groups,
skills=agent_cfg.skills,
soul=soul,
)
@@ -115,12 +100,9 @@ async def list_agents() -> AgentsListResponse:
Returns:
List of all custom agents with their metadata and soul content.
"""
_require_agents_api_enabled()
user_id = get_effective_user_id()
try:
agents = list_custom_agents(user_id=user_id)
return AgentsListResponse(agents=[_agent_config_to_response(a, include_soul=True, user_id=user_id) for a in agents])
agents = list_custom_agents()
return AgentsListResponse(agents=[_agent_config_to_response(a, include_soul=True) for a in agents])
except Exception as e:
logger.error(f"Failed to list agents: {e}", exc_info=True)
raise HTTPException(status_code=500, detail=f"Failed to list agents: {str(e)}")
@@ -143,15 +125,9 @@ async def check_agent_name(name: str) -> dict:
Raises:
HTTPException: 422 if the name is invalid.
"""
_require_agents_api_enabled()
_validate_agent_name(name)
normalized = _normalize_agent_name(name)
user_id = get_effective_user_id()
paths = get_paths()
# Treat the name as taken if either the per-user path or the legacy shared
# path holds an agent — picking a name that collides with an unmigrated
# legacy agent would shadow the legacy entry once migration runs.
available = not paths.user_agent_dir(user_id, normalized).exists() and not paths.agent_dir(normalized).exists()
available = not get_paths().agent_dir(normalized).exists()
return {"available": available, "name": normalized}
@@ -173,14 +149,12 @@ async def get_agent(name: str) -> AgentResponse:
Raises:
HTTPException: 404 if agent not found.
"""
_require_agents_api_enabled()
_validate_agent_name(name)
name = _normalize_agent_name(name)
user_id = get_effective_user_id()
try:
agent_cfg = load_agent_config(name, user_id=user_id)
return _agent_config_to_response(agent_cfg, include_soul=True, user_id=user_id)
agent_cfg = load_agent_config(name)
return _agent_config_to_response(agent_cfg, include_soul=True)
except FileNotFoundError:
raise HTTPException(status_code=404, detail=f"Agent '{name}' not found")
except Exception as e:
@@ -207,16 +181,12 @@ async def create_agent_endpoint(request: AgentCreateRequest) -> AgentResponse:
Raises:
HTTPException: 409 if agent already exists, 422 if name is invalid.
"""
_require_agents_api_enabled()
_validate_agent_name(request.name)
normalized_name = _normalize_agent_name(request.name)
user_id = get_effective_user_id()
paths = get_paths()
agent_dir = paths.user_agent_dir(user_id, normalized_name)
legacy_dir = paths.agent_dir(normalized_name)
agent_dir = get_paths().agent_dir(normalized_name)
if agent_dir.exists() or legacy_dir.exists():
if agent_dir.exists():
raise HTTPException(status_code=409, detail=f"Agent '{normalized_name}' already exists")
try:
@@ -230,8 +200,6 @@ async def create_agent_endpoint(request: AgentCreateRequest) -> AgentResponse:
config_data["model"] = request.model
if request.tool_groups is not None:
config_data["tool_groups"] = request.tool_groups
if request.skills is not None:
config_data["skills"] = request.skills
config_file = agent_dir / "config.yaml"
with open(config_file, "w", encoding="utf-8") as f:
@@ -243,8 +211,8 @@ async def create_agent_endpoint(request: AgentCreateRequest) -> AgentResponse:
logger.info(f"Created agent '{normalized_name}' at {agent_dir}")
agent_cfg = load_agent_config(normalized_name, user_id=user_id)
return _agent_config_to_response(agent_cfg, include_soul=True, user_id=user_id)
agent_cfg = load_agent_config(normalized_name)
return _agent_config_to_response(agent_cfg, include_soul=True)
except HTTPException:
raise
@@ -275,52 +243,33 @@ async def update_agent(name: str, request: AgentUpdateRequest) -> AgentResponse:
Raises:
HTTPException: 404 if agent not found.
"""
_require_agents_api_enabled()
_validate_agent_name(name)
name = _normalize_agent_name(name)
user_id = get_effective_user_id()
try:
agent_cfg = load_agent_config(name, user_id=user_id)
agent_cfg = load_agent_config(name)
except FileNotFoundError:
raise HTTPException(status_code=404, detail=f"Agent '{name}' not found")
paths = get_paths()
agent_dir = paths.user_agent_dir(user_id, name)
if not agent_dir.exists() and paths.agent_dir(name).exists():
raise HTTPException(
status_code=409,
detail=(f"Agent '{name}' only exists in the legacy shared layout and is not scoped to a user. Run scripts/migrate_user_isolation.py to move legacy agents into the per-user layout before updating."),
)
agent_dir = get_paths().agent_dir(name)
try:
# Update config if any config fields changed
# Use model_fields_set to distinguish "field omitted" from "explicitly set to null".
# This is critical for skills where None means "inherit all" (not "don't change").
fields_set = request.model_fields_set
config_changed = bool(fields_set & {"description", "model", "tool_groups", "skills"})
config_changed = any(v is not None for v in [request.description, request.model, request.tool_groups])
if config_changed:
updated: dict = {
"name": agent_cfg.name,
"description": request.description if "description" in fields_set else agent_cfg.description,
"description": request.description if request.description is not None else agent_cfg.description,
}
new_model = request.model if "model" in fields_set else agent_cfg.model
new_model = request.model if request.model is not None else agent_cfg.model
if new_model is not None:
updated["model"] = new_model
new_tool_groups = request.tool_groups if "tool_groups" in fields_set else agent_cfg.tool_groups
new_tool_groups = request.tool_groups if request.tool_groups is not None else agent_cfg.tool_groups
if new_tool_groups is not None:
updated["tool_groups"] = new_tool_groups
# skills: None = inherit all, [] = no skills, ["a","b"] = whitelist
if "skills" in fields_set:
new_skills = request.skills
else:
new_skills = agent_cfg.skills
if new_skills is not None:
updated["skills"] = new_skills
config_file = agent_dir / "config.yaml"
with open(config_file, "w", encoding="utf-8") as f:
yaml.dump(updated, f, default_flow_style=False, allow_unicode=True)
@@ -332,8 +281,8 @@ async def update_agent(name: str, request: AgentUpdateRequest) -> AgentResponse:
logger.info(f"Updated agent '{name}'")
refreshed_cfg = load_agent_config(name, user_id=user_id)
return _agent_config_to_response(refreshed_cfg, include_soul=True, user_id=user_id)
refreshed_cfg = load_agent_config(name)
return _agent_config_to_response(refreshed_cfg, include_soul=True)
except HTTPException:
raise
@@ -366,8 +315,6 @@ async def get_user_profile() -> UserProfileResponse:
Returns:
UserProfileResponse with content=None if USER.md does not exist yet.
"""
_require_agents_api_enabled()
try:
user_md_path = get_paths().user_md_file
if not user_md_path.exists():
@@ -394,8 +341,6 @@ async def update_user_profile(request: UserProfileUpdateRequest) -> UserProfileR
Returns:
UserProfileResponse with the saved content.
"""
_require_agents_api_enabled()
try:
paths = get_paths()
paths.base_dir.mkdir(parents=True, exist_ok=True)
@@ -420,22 +365,14 @@ async def delete_agent(name: str) -> None:
name: The agent name.
Raises:
HTTPException: 404 if no per-user copy exists; 409 if only a legacy
shared copy exists (suggesting the migration script).
HTTPException: 404 if agent not found.
"""
_require_agents_api_enabled()
_validate_agent_name(name)
name = _normalize_agent_name(name)
user_id = get_effective_user_id()
paths = get_paths()
agent_dir = paths.user_agent_dir(user_id, name)
agent_dir = get_paths().agent_dir(name)
if not agent_dir.exists():
if paths.agent_dir(name).exists():
raise HTTPException(
status_code=409,
detail=(f"Agent '{name}' only exists in the legacy shared layout and is not scoped to a user. Run scripts/migrate_user_isolation.py to move legacy agents into the per-user layout before deleting."),
)
raise HTTPException(status_code=404, detail=f"Agent '{name}' not found")
try:
+5 -26
View File
@@ -7,7 +7,6 @@ from urllib.parse import quote
from fastapi import APIRouter, HTTPException, Request
from fastapi.responses import FileResponse, PlainTextResponse, Response
from app.gateway.authz import require_permission
from app.gateway.path_utils import resolve_thread_virtual_path
logger = logging.getLogger(__name__)
@@ -20,9 +19,6 @@ ACTIVE_CONTENT_MIME_TYPES = {
"image/svg+xml",
}
MAX_SKILL_ARCHIVE_MEMBER_BYTES = 16 * 1024 * 1024
_SKILL_ARCHIVE_READ_CHUNK_SIZE = 64 * 1024
def _build_content_disposition(disposition_type: str, filename: str) -> str:
"""Build an RFC 5987 encoded Content-Disposition header value."""
@@ -47,22 +43,6 @@ def is_text_file_by_content(path: Path, sample_size: int = 8192) -> bool:
return False
def _read_skill_archive_member(zip_ref: zipfile.ZipFile, info: zipfile.ZipInfo) -> bytes:
"""Read a .skill archive member while enforcing an uncompressed size cap."""
if info.file_size > MAX_SKILL_ARCHIVE_MEMBER_BYTES:
raise HTTPException(status_code=413, detail="Skill archive member is too large to preview")
chunks: list[bytes] = []
total_read = 0
with zip_ref.open(info, "r") as src:
while chunk := src.read(_SKILL_ARCHIVE_READ_CHUNK_SIZE):
total_read += len(chunk)
if total_read > MAX_SKILL_ARCHIVE_MEMBER_BYTES:
raise HTTPException(status_code=413, detail="Skill archive member is too large to preview")
chunks.append(chunk)
return b"".join(chunks)
def _extract_file_from_skill_archive(zip_path: Path, internal_path: str) -> bytes | None:
"""Extract a file from a .skill ZIP archive.
@@ -79,16 +59,16 @@ def _extract_file_from_skill_archive(zip_path: Path, internal_path: str) -> byte
try:
with zipfile.ZipFile(zip_path, "r") as zip_ref:
# List all files in the archive
infos_by_name = {info.filename: info for info in zip_ref.infolist()}
namelist = zip_ref.namelist()
# Try direct path first
if internal_path in infos_by_name:
return _read_skill_archive_member(zip_ref, infos_by_name[internal_path])
if internal_path in namelist:
return zip_ref.read(internal_path)
# Try with any top-level directory prefix (e.g., "skill-name/SKILL.md")
for name, info in infos_by_name.items():
for name in namelist:
if name.endswith("/" + internal_path) or name == internal_path:
return _read_skill_archive_member(zip_ref, info)
return zip_ref.read(name)
# Not found
return None
@@ -101,7 +81,6 @@ def _extract_file_from_skill_archive(zip_path: Path, internal_path: str) -> byte
summary="Get Artifact File",
description="Retrieve an artifact file generated by the AI agent. Text and binary files can be viewed inline, while active web content is always downloaded.",
)
@require_permission("threads", "read", owner_check=True)
async def get_artifact(thread_id: str, path: str, request: Request, download: bool = False) -> Response:
"""Get an artifact file by its path.
-527
View File
@@ -1,527 +0,0 @@
"""Authentication endpoints."""
import asyncio
import logging
import os
import time
from ipaddress import ip_address, ip_network
from fastapi import APIRouter, Depends, HTTPException, Request, Response, status
from fastapi.security import OAuth2PasswordRequestForm
from pydantic import BaseModel, EmailStr, Field, field_validator
from app.gateway.auth import (
UserResponse,
create_access_token,
)
from app.gateway.auth.config import get_auth_config
from app.gateway.auth.errors import AuthErrorCode, AuthErrorResponse
from app.gateway.csrf_middleware import is_secure_request
from app.gateway.deps import get_current_user_from_request, get_local_provider
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/v1/auth", tags=["auth"])
# ── Request/Response Models ──────────────────────────────────────────────
class LoginResponse(BaseModel):
"""Response model for login — token only lives in HttpOnly cookie."""
expires_in: int # seconds
needs_setup: bool = False
# Top common-password blocklist. Drawn from the public SecLists "10k worst
# passwords" set, lowercased + length>=8 only (shorter ones already fail
# the min_length check). Kept tight on purpose: this is the **lower bound**
# defense, not a full HIBP / passlib check, and runs in-process per request.
_COMMON_PASSWORDS: frozenset[str] = frozenset(
{
"password",
"password1",
"password12",
"password123",
"password1234",
"12345678",
"123456789",
"1234567890",
"qwerty12",
"qwertyui",
"qwerty123",
"abc12345",
"abcd1234",
"iloveyou",
"letmein1",
"welcome1",
"welcome123",
"admin123",
"administrator",
"passw0rd",
"p@ssw0rd",
"monkey12",
"trustno1",
"sunshine",
"princess",
"football",
"baseball",
"superman",
"batman123",
"starwars",
"dragon123",
"master123",
"shadow12",
"michael1",
"jennifer",
"computer",
}
)
def _password_is_common(password: str) -> bool:
"""Case-insensitive blocklist check.
Lowercases the input so trivial mutations like ``Password`` /
``PASSWORD`` are also rejected. Does not normalize digit substitutions
(``p@ssw0rd`` is included as a literal entry instead) — keeping the
rule cheap and predictable.
"""
return password.lower() in _COMMON_PASSWORDS
def _validate_strong_password(value: str) -> str:
"""Pydantic field-validator body shared by Register + ChangePassword.
Constraint = function, not type-level mixin. The two request models
have no "is-a" relationship; they only share the password-strength
rule. Lifting it into a free function lets each model bind it via
``@field_validator(field_name)`` without inheritance gymnastics.
"""
if _password_is_common(value):
raise ValueError("Password is too common; choose a stronger password.")
return value
class RegisterRequest(BaseModel):
"""Request model for user registration."""
email: EmailStr
password: str = Field(..., min_length=8)
_strong_password = field_validator("password")(classmethod(lambda cls, v: _validate_strong_password(v)))
class ChangePasswordRequest(BaseModel):
"""Request model for password change (also handles setup flow)."""
current_password: str
new_password: str = Field(..., min_length=8)
new_email: EmailStr | None = None
_strong_password = field_validator("new_password")(classmethod(lambda cls, v: _validate_strong_password(v)))
class MessageResponse(BaseModel):
"""Generic message response."""
message: str
# ── Helpers ───────────────────────────────────────────────────────────────
def _set_session_cookie(response: Response, token: str, request: Request) -> None:
"""Set the access_token HttpOnly cookie on the response."""
config = get_auth_config()
is_https = is_secure_request(request)
response.set_cookie(
key="access_token",
value=token,
httponly=True,
secure=is_https,
samesite="lax",
max_age=config.token_expiry_days * 24 * 3600 if is_https else None,
)
# ── Rate Limiting ────────────────────────────────────────────────────────
# In-process dict — not shared across workers.
#
# **Limitation**: with multi-worker deployments (e.g., gunicorn -w N), each
# worker maintains its own lockout table, so an attacker effectively gets
# N × _MAX_LOGIN_ATTEMPTS guesses before being locked out everywhere. For
# production multi-worker setups, replace this with a shared store (Redis,
# database-backed counter) to enforce a true per-IP limit.
_MAX_LOGIN_ATTEMPTS = 5
_LOCKOUT_SECONDS = 300 # 5 minutes
# ip → (fail_count, lock_until_timestamp)
_login_attempts: dict[str, tuple[int, float]] = {}
def _trusted_proxies() -> list:
"""Parse ``AUTH_TRUSTED_PROXIES`` env var into a list of ip_network objects.
Comma-separated CIDR or single-IP entries. Empty / unset = no proxy is
trusted (direct mode). Invalid entries are skipped with a logger warning.
Read live so env-var overrides take effect immediately and tests can
``monkeypatch.setenv`` without poking a module-level cache.
"""
raw = os.getenv("AUTH_TRUSTED_PROXIES", "").strip()
if not raw:
return []
nets = []
for entry in raw.split(","):
entry = entry.strip()
if not entry:
continue
try:
nets.append(ip_network(entry, strict=False))
except ValueError:
logger.warning("AUTH_TRUSTED_PROXIES: ignoring invalid entry %r", entry)
return nets
def _get_client_ip(request: Request) -> str:
"""Extract the real client IP for rate limiting.
Trust model:
- The TCP peer (``request.client.host``) is always the baseline. It is
whatever the kernel reports as the connecting socket — unforgeable
by the client itself.
- ``X-Real-IP`` is **only** honored if the TCP peer is in the
``AUTH_TRUSTED_PROXIES`` allowlist (set via env var, comma-separated
CIDR or single IPs). When set, the gateway is assumed to be behind a
reverse proxy (nginx, Cloudflare, ALB, …) that overwrites
``X-Real-IP`` with the original client address.
- With no ``AUTH_TRUSTED_PROXIES`` set, ``X-Real-IP`` is silently
ignored — closing the bypass where any client could rotate the
header to dodge per-IP rate limits in dev / direct-gateway mode.
``X-Forwarded-For`` is intentionally NOT used because it is naturally
client-controlled at the *first* hop and the trust chain is harder to
audit per-request.
"""
peer_host = request.client.host if request.client else None
trusted = _trusted_proxies()
if trusted and peer_host:
try:
peer_ip = ip_address(peer_host)
if any(peer_ip in net for net in trusted):
real_ip = request.headers.get("x-real-ip", "").strip()
if real_ip:
return real_ip
except ValueError:
# peer_host wasn't a parseable IP (e.g. "unknown") — fall through
pass
return peer_host or "unknown"
def _check_rate_limit(ip: str) -> None:
"""Raise 429 if the IP is currently locked out."""
record = _login_attempts.get(ip)
if record is None:
return
fail_count, lock_until = record
if fail_count >= _MAX_LOGIN_ATTEMPTS:
if time.time() < lock_until:
raise HTTPException(
status_code=429,
detail="Too many login attempts. Try again later.",
)
del _login_attempts[ip]
_MAX_TRACKED_IPS = 10000
def _record_login_failure(ip: str) -> None:
"""Record a failed login attempt for the given IP."""
# Evict expired lockouts when dict grows too large
if len(_login_attempts) >= _MAX_TRACKED_IPS:
now = time.time()
expired = [k for k, (c, t) in _login_attempts.items() if c >= _MAX_LOGIN_ATTEMPTS and now >= t]
for k in expired:
del _login_attempts[k]
# If still too large, evict cheapest-to-lose half: below-threshold
# IPs (lock_until=0.0) sort first, then earliest-expiring lockouts.
if len(_login_attempts) >= _MAX_TRACKED_IPS:
by_time = sorted(_login_attempts.items(), key=lambda kv: kv[1][1])
for k, _ in by_time[: len(by_time) // 2]:
del _login_attempts[k]
record = _login_attempts.get(ip)
if record is None:
_login_attempts[ip] = (1, 0.0)
else:
new_count = record[0] + 1
lock_until = time.time() + _LOCKOUT_SECONDS if new_count >= _MAX_LOGIN_ATTEMPTS else 0.0
_login_attempts[ip] = (new_count, lock_until)
def _record_login_success(ip: str) -> None:
"""Clear failure counter for the given IP on successful login."""
_login_attempts.pop(ip, None)
# ── Endpoints ─────────────────────────────────────────────────────────────
@router.post("/login/local", response_model=LoginResponse)
async def login_local(
request: Request,
response: Response,
form_data: OAuth2PasswordRequestForm = Depends(),
):
"""Local email/password login."""
client_ip = _get_client_ip(request)
_check_rate_limit(client_ip)
user = await get_local_provider().authenticate({"email": form_data.username, "password": form_data.password})
if user is None:
_record_login_failure(client_ip)
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail=AuthErrorResponse(code=AuthErrorCode.INVALID_CREDENTIALS, message="Incorrect email or password").model_dump(),
)
_record_login_success(client_ip)
token = create_access_token(str(user.id), token_version=user.token_version)
_set_session_cookie(response, token, request)
return LoginResponse(
expires_in=get_auth_config().token_expiry_days * 24 * 3600,
needs_setup=user.needs_setup,
)
@router.post("/register", response_model=UserResponse, status_code=status.HTTP_201_CREATED)
async def register(request: Request, response: Response, body: RegisterRequest):
"""Register a new user account (always 'user' role).
The first admin is created explicitly through /initialize. This endpoint creates regular users.
Auto-login by setting the session cookie.
"""
try:
user = await get_local_provider().create_user(email=body.email, password=body.password, system_role="user")
except ValueError:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=AuthErrorResponse(code=AuthErrorCode.EMAIL_ALREADY_EXISTS, message="Email already registered").model_dump(),
)
token = create_access_token(str(user.id), token_version=user.token_version)
_set_session_cookie(response, token, request)
return UserResponse(id=str(user.id), email=user.email, system_role=user.system_role)
@router.post("/logout", response_model=MessageResponse)
async def logout(request: Request, response: Response):
"""Logout current user by clearing the cookie."""
response.delete_cookie(key="access_token", secure=is_secure_request(request), samesite="lax")
return MessageResponse(message="Successfully logged out")
@router.post("/change-password", response_model=MessageResponse)
async def change_password(request: Request, response: Response, body: ChangePasswordRequest):
"""Change password for the currently authenticated user.
Also handles the first-boot setup flow:
- If new_email is provided, updates email (checks uniqueness)
- If user.needs_setup is True and new_email is given, clears needs_setup
- Always increments token_version to invalidate old sessions
- Re-issues session cookie with new token_version
"""
from app.gateway.auth.password import hash_password_async, verify_password_async
user = await get_current_user_from_request(request)
if user.password_hash is None:
raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=AuthErrorResponse(code=AuthErrorCode.INVALID_CREDENTIALS, message="OAuth users cannot change password").model_dump())
if not await verify_password_async(body.current_password, user.password_hash):
raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=AuthErrorResponse(code=AuthErrorCode.INVALID_CREDENTIALS, message="Current password is incorrect").model_dump())
provider = get_local_provider()
# Update email if provided
if body.new_email is not None:
existing = await provider.get_user_by_email(body.new_email)
if existing and str(existing.id) != str(user.id):
raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=AuthErrorResponse(code=AuthErrorCode.EMAIL_ALREADY_EXISTS, message="Email already in use").model_dump())
user.email = body.new_email
# Update password + bump version
user.password_hash = await hash_password_async(body.new_password)
user.token_version += 1
# Clear setup flag if this is the setup flow
if user.needs_setup and body.new_email is not None:
user.needs_setup = False
await provider.update_user(user)
# Re-issue cookie with new token_version
token = create_access_token(str(user.id), token_version=user.token_version)
_set_session_cookie(response, token, request)
return MessageResponse(message="Password changed successfully")
@router.get("/me", response_model=UserResponse)
async def get_me(request: Request):
"""Get current authenticated user info."""
user = await get_current_user_from_request(request)
return UserResponse(id=str(user.id), email=user.email, system_role=user.system_role, needs_setup=user.needs_setup)
# Per-IP cache: ip → (timestamp, result_dict).
# Returns the cached result within the TTL instead of 429, because
# the answer (whether an admin exists) rarely changes and returning
# 429 breaks multi-tab / post-restart reconnection storms.
_SETUP_STATUS_CACHE: dict[str, tuple[float, dict]] = {}
_SETUP_STATUS_CACHE_TTL_SECONDS = 60
_MAX_TRACKED_SETUP_STATUS_IPS = 10000
_SETUP_STATUS_INFLIGHT: dict[str, asyncio.Task[dict]] = {}
_SETUP_STATUS_INFLIGHT_GUARD = asyncio.Lock()
@router.get("/setup-status")
async def setup_status(request: Request):
"""Check if an admin account exists. Returns needs_setup=True when no admin exists."""
client_ip = _get_client_ip(request)
now = time.time()
# Return cached result when within TTL — avoids 429 on multi-tab reconnection.
cached = _SETUP_STATUS_CACHE.get(client_ip)
if cached is not None:
cached_time, cached_result = cached
if now - cached_time < _SETUP_STATUS_CACHE_TTL_SECONDS:
return cached_result
async with _SETUP_STATUS_INFLIGHT_GUARD:
# Recheck cache after waiting for the inflight guard.
now = time.time()
cached = _SETUP_STATUS_CACHE.get(client_ip)
if cached is not None:
cached_time, cached_result = cached
if now - cached_time < _SETUP_STATUS_CACHE_TTL_SECONDS:
return cached_result
task = _SETUP_STATUS_INFLIGHT.get(client_ip)
if task is None:
# Evict stale entries when dict grows too large to bound memory usage.
if len(_SETUP_STATUS_CACHE) >= _MAX_TRACKED_SETUP_STATUS_IPS:
cutoff = now - _SETUP_STATUS_CACHE_TTL_SECONDS
stale = [k for k, (t, _) in _SETUP_STATUS_CACHE.items() if t < cutoff]
for k in stale:
del _SETUP_STATUS_CACHE[k]
if len(_SETUP_STATUS_CACHE) >= _MAX_TRACKED_SETUP_STATUS_IPS:
by_time = sorted(_SETUP_STATUS_CACHE.items(), key=lambda entry: entry[1][0])
for k, _ in by_time[: len(by_time) // 2]:
del _SETUP_STATUS_CACHE[k]
async def _compute_setup_status() -> dict:
admin_count = await get_local_provider().count_admin_users()
return {"needs_setup": admin_count == 0}
task = asyncio.create_task(_compute_setup_status())
_SETUP_STATUS_INFLIGHT[client_ip] = task
try:
result = await task
finally:
async with _SETUP_STATUS_INFLIGHT_GUARD:
if _SETUP_STATUS_INFLIGHT.get(client_ip) is task:
del _SETUP_STATUS_INFLIGHT[client_ip]
# Cache only the stable "initialized" result to avoid stale setup redirects.
if result["needs_setup"] is False:
_SETUP_STATUS_CACHE[client_ip] = (time.time(), result)
else:
_SETUP_STATUS_CACHE.pop(client_ip, None)
return result
class InitializeAdminRequest(BaseModel):
"""Request model for first-boot admin account creation."""
email: EmailStr
password: str = Field(..., min_length=8)
_strong_password = field_validator("password")(classmethod(lambda cls, v: _validate_strong_password(v)))
@router.post("/initialize", response_model=UserResponse, status_code=status.HTTP_201_CREATED)
async def initialize_admin(request: Request, response: Response, body: InitializeAdminRequest):
"""Create the first admin account on initial system setup.
Only callable when no admin exists. Returns 409 Conflict if an admin
already exists.
On success, the admin account is created with ``needs_setup=False`` and
the session cookie is set.
"""
admin_count = await get_local_provider().count_admin_users()
if admin_count > 0:
raise HTTPException(
status_code=status.HTTP_409_CONFLICT,
detail=AuthErrorResponse(code=AuthErrorCode.SYSTEM_ALREADY_INITIALIZED, message="System already initialized").model_dump(),
)
try:
user = await get_local_provider().create_user(email=body.email, password=body.password, system_role="admin", needs_setup=False)
except ValueError:
# DB unique-constraint race: another concurrent request beat us.
raise HTTPException(
status_code=status.HTTP_409_CONFLICT,
detail=AuthErrorResponse(code=AuthErrorCode.SYSTEM_ALREADY_INITIALIZED, message="System already initialized").model_dump(),
)
token = create_access_token(str(user.id), token_version=user.token_version)
_set_session_cookie(response, token, request)
return UserResponse(id=str(user.id), email=user.email, system_role=user.system_role)
# ── OAuth Endpoints (Future/Placeholder) ─────────────────────────────────
@router.get("/oauth/{provider}")
async def oauth_login(provider: str):
"""Initiate OAuth login flow.
Redirects to the OAuth provider's authorization URL.
Currently a placeholder - requires OAuth provider implementation.
"""
if provider not in ["github", "google"]:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=f"Unsupported OAuth provider: {provider}",
)
raise HTTPException(
status_code=status.HTTP_501_NOT_IMPLEMENTED,
detail="OAuth login not yet implemented",
)
@router.get("/callback/{provider}")
async def oauth_callback(provider: str, code: str, state: str):
"""OAuth callback endpoint.
Handles the OAuth provider's callback after user authorization.
Currently a placeholder.
"""
raise HTTPException(
status_code=status.HTTP_501_NOT_IMPLEMENTED,
detail="OAuth callback not yet implemented",
)
-188
View File
@@ -1,188 +0,0 @@
"""Feedback endpoints — create, list, stats, delete.
Allows users to submit thumbs-up/down feedback on runs,
optionally scoped to a specific message.
"""
from __future__ import annotations
import logging
from typing import Any
from fastapi import APIRouter, HTTPException, Request
from pydantic import BaseModel, Field
from app.gateway.authz import require_permission
from app.gateway.deps import get_current_user, get_feedback_repo, get_run_store
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/threads", tags=["feedback"])
# ---------------------------------------------------------------------------
# Request / response models
# ---------------------------------------------------------------------------
class FeedbackCreateRequest(BaseModel):
rating: int = Field(..., description="Feedback rating: +1 (positive) or -1 (negative)")
comment: str | None = Field(default=None, description="Optional text feedback")
message_id: str | None = Field(default=None, description="Optional: scope feedback to a specific message")
class FeedbackUpsertRequest(BaseModel):
rating: int = Field(..., description="Feedback rating: +1 (positive) or -1 (negative)")
comment: str | None = Field(default=None, description="Optional text feedback")
class FeedbackResponse(BaseModel):
feedback_id: str
run_id: str
thread_id: str
user_id: str | None = None
message_id: str | None = None
rating: int
comment: str | None = None
created_at: str = ""
class FeedbackStatsResponse(BaseModel):
run_id: str
total: int = 0
positive: int = 0
negative: int = 0
# ---------------------------------------------------------------------------
# Endpoints
# ---------------------------------------------------------------------------
@router.put("/{thread_id}/runs/{run_id}/feedback", response_model=FeedbackResponse)
@require_permission("threads", "write", owner_check=True, require_existing=True)
async def upsert_feedback(
thread_id: str,
run_id: str,
body: FeedbackUpsertRequest,
request: Request,
) -> dict[str, Any]:
"""Create or update feedback for a run (idempotent)."""
if body.rating not in (1, -1):
raise HTTPException(status_code=400, detail="rating must be +1 or -1")
user_id = await get_current_user(request)
run_store = get_run_store(request)
run = await run_store.get(run_id)
if run is None:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
if run.get("thread_id") != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found in thread {thread_id}")
feedback_repo = get_feedback_repo(request)
return await feedback_repo.upsert(
run_id=run_id,
thread_id=thread_id,
rating=body.rating,
user_id=user_id,
comment=body.comment,
)
@router.delete("/{thread_id}/runs/{run_id}/feedback")
@require_permission("threads", "delete", owner_check=True, require_existing=True)
async def delete_run_feedback(
thread_id: str,
run_id: str,
request: Request,
) -> dict[str, bool]:
"""Delete the current user's feedback for a run."""
user_id = await get_current_user(request)
feedback_repo = get_feedback_repo(request)
deleted = await feedback_repo.delete_by_run(
thread_id=thread_id,
run_id=run_id,
user_id=user_id,
)
if not deleted:
raise HTTPException(status_code=404, detail="No feedback found for this run")
return {"success": True}
@router.post("/{thread_id}/runs/{run_id}/feedback", response_model=FeedbackResponse)
@require_permission("threads", "write", owner_check=True, require_existing=True)
async def create_feedback(
thread_id: str,
run_id: str,
body: FeedbackCreateRequest,
request: Request,
) -> dict[str, Any]:
"""Submit feedback (thumbs-up/down) for a run."""
if body.rating not in (1, -1):
raise HTTPException(status_code=400, detail="rating must be +1 or -1")
user_id = await get_current_user(request)
# Validate run exists and belongs to thread
run_store = get_run_store(request)
run = await run_store.get(run_id)
if run is None:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
if run.get("thread_id") != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found in thread {thread_id}")
feedback_repo = get_feedback_repo(request)
return await feedback_repo.create(
run_id=run_id,
thread_id=thread_id,
rating=body.rating,
user_id=user_id,
message_id=body.message_id,
comment=body.comment,
)
@router.get("/{thread_id}/runs/{run_id}/feedback", response_model=list[FeedbackResponse])
@require_permission("threads", "read", owner_check=True)
async def list_feedback(
thread_id: str,
run_id: str,
request: Request,
) -> list[dict[str, Any]]:
"""List all feedback for a run."""
feedback_repo = get_feedback_repo(request)
return await feedback_repo.list_by_run(thread_id, run_id)
@router.get("/{thread_id}/runs/{run_id}/feedback/stats", response_model=FeedbackStatsResponse)
@require_permission("threads", "read", owner_check=True)
async def feedback_stats(
thread_id: str,
run_id: str,
request: Request,
) -> dict[str, Any]:
"""Get aggregated feedback stats (positive/negative counts) for a run."""
feedback_repo = get_feedback_repo(request)
return await feedback_repo.aggregate_by_run(thread_id, run_id)
@router.delete("/{thread_id}/runs/{run_id}/feedback/{feedback_id}")
@require_permission("threads", "delete", owner_check=True, require_existing=True)
async def delete_feedback(
thread_id: str,
run_id: str,
feedback_id: str,
request: Request,
) -> dict[str, bool]:
"""Delete a feedback record."""
feedback_repo = get_feedback_repo(request)
# Verify feedback belongs to the specified thread/run before deleting
existing = await feedback_repo.get(feedback_id)
if existing is None:
raise HTTPException(status_code=404, detail=f"Feedback {feedback_id} not found")
if existing.get("thread_id") != thread_id or existing.get("run_id") != run_id:
raise HTTPException(status_code=404, detail=f"Feedback {feedback_id} not found in run {run_id}")
deleted = await feedback_repo.delete(feedback_id)
if not deleted:
raise HTTPException(status_code=404, detail=f"Feedback {feedback_id} not found")
return {"success": True}
+7 -10
View File
@@ -13,7 +13,6 @@ from deerflow.agents.memory.updater import (
update_memory_fact,
)
from deerflow.config.memory_config import get_memory_config
from deerflow.runtime.user_context import get_effective_user_id
router = APIRouter(prefix="/api", tags=["memory"])
@@ -148,7 +147,7 @@ async def get_memory() -> MemoryResponse:
}
```
"""
memory_data = get_memory_data(user_id=get_effective_user_id())
memory_data = get_memory_data()
return MemoryResponse(**memory_data)
@@ -168,7 +167,7 @@ async def reload_memory() -> MemoryResponse:
Returns:
The reloaded memory data.
"""
memory_data = reload_memory_data(user_id=get_effective_user_id())
memory_data = reload_memory_data()
return MemoryResponse(**memory_data)
@@ -182,7 +181,7 @@ async def reload_memory() -> MemoryResponse:
async def clear_memory() -> MemoryResponse:
"""Clear all persisted memory data."""
try:
memory_data = clear_memory_data(user_id=get_effective_user_id())
memory_data = clear_memory_data()
except OSError as exc:
raise HTTPException(status_code=500, detail="Failed to clear memory data.") from exc
@@ -203,7 +202,6 @@ async def create_memory_fact_endpoint(request: FactCreateRequest) -> MemoryRespo
content=request.content,
category=request.category,
confidence=request.confidence,
user_id=get_effective_user_id(),
)
except ValueError as exc:
raise _map_memory_fact_value_error(exc) from exc
@@ -223,7 +221,7 @@ async def create_memory_fact_endpoint(request: FactCreateRequest) -> MemoryRespo
async def delete_memory_fact_endpoint(fact_id: str) -> MemoryResponse:
"""Delete a single fact from memory by fact id."""
try:
memory_data = delete_memory_fact(fact_id, user_id=get_effective_user_id())
memory_data = delete_memory_fact(fact_id)
except KeyError as exc:
raise HTTPException(status_code=404, detail=f"Memory fact '{fact_id}' not found.") from exc
except OSError as exc:
@@ -247,7 +245,6 @@ async def update_memory_fact_endpoint(fact_id: str, request: FactPatchRequest) -
content=request.content,
category=request.category,
confidence=request.confidence,
user_id=get_effective_user_id(),
)
except ValueError as exc:
raise _map_memory_fact_value_error(exc) from exc
@@ -268,7 +265,7 @@ async def update_memory_fact_endpoint(fact_id: str, request: FactPatchRequest) -
)
async def export_memory() -> MemoryResponse:
"""Export the current memory data."""
memory_data = get_memory_data(user_id=get_effective_user_id())
memory_data = get_memory_data()
return MemoryResponse(**memory_data)
@@ -282,7 +279,7 @@ async def export_memory() -> MemoryResponse:
async def import_memory(request: MemoryResponse) -> MemoryResponse:
"""Import and persist memory data."""
try:
memory_data = import_memory_data(request.model_dump(), user_id=get_effective_user_id())
memory_data = import_memory_data(request.model_dump())
except OSError as exc:
raise HTTPException(status_code=500, detail="Failed to import memory data.") from exc
@@ -340,7 +337,7 @@ async def get_memory_status() -> MemoryStatusResponse:
Combined memory configuration and current data.
"""
config = get_memory_config()
memory_data = get_memory_data(user_id=get_effective_user_id())
memory_data = get_memory_data()
return MemoryStatusResponse(
config=MemoryConfigResponse(
+11 -27
View File
@@ -1,8 +1,7 @@
from fastapi import APIRouter, Depends, HTTPException
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel, Field
from app.gateway.deps import get_config
from deerflow.config.app_config import AppConfig
from deerflow.config import get_app_config
router = APIRouter(prefix="/api", tags=["models"])
@@ -18,17 +17,10 @@ class ModelResponse(BaseModel):
supports_reasoning_effort: bool = Field(default=False, description="Whether model supports reasoning effort")
class TokenUsageResponse(BaseModel):
"""Token usage display configuration."""
enabled: bool = Field(default=False, description="Whether token usage display is enabled")
class ModelsListResponse(BaseModel):
"""Response model for listing all models."""
models: list[ModelResponse]
token_usage: TokenUsageResponse
@router.get(
@@ -37,14 +29,14 @@ class ModelsListResponse(BaseModel):
summary="List All Models",
description="Retrieve a list of all available AI models configured in the system.",
)
async def list_models(config: AppConfig = Depends(get_config)) -> ModelsListResponse:
async def list_models() -> ModelsListResponse:
"""List all available models from configuration.
Returns model information suitable for frontend display,
excluding sensitive fields like API keys and internal configuration.
Returns:
A list of all configured models with their metadata and token usage display settings.
A list of all configured models with their metadata.
Example Response:
```json
@@ -52,27 +44,21 @@ async def list_models(config: AppConfig = Depends(get_config)) -> ModelsListResp
"models": [
{
"name": "gpt-4",
"model": "gpt-4",
"display_name": "GPT-4",
"description": "OpenAI GPT-4 model",
"supports_thinking": false,
"supports_reasoning_effort": false
"supports_thinking": false
},
{
"name": "claude-3-opus",
"model": "claude-3-opus",
"display_name": "Claude 3 Opus",
"description": "Anthropic Claude 3 Opus model",
"supports_thinking": true,
"supports_reasoning_effort": false
"supports_thinking": true
}
],
"token_usage": {
"enabled": true
}
]
}
```
"""
config = get_app_config()
models = [
ModelResponse(
name=model.name,
@@ -84,10 +70,7 @@ async def list_models(config: AppConfig = Depends(get_config)) -> ModelsListResp
)
for model in config.models
]
return ModelsListResponse(
models=models,
token_usage=TokenUsageResponse(enabled=config.token_usage.enabled),
)
return ModelsListResponse(models=models)
@router.get(
@@ -96,7 +79,7 @@ async def list_models(config: AppConfig = Depends(get_config)) -> ModelsListResp
summary="Get Model Details",
description="Retrieve detailed information about a specific AI model by its name.",
)
async def get_model(model_name: str, config: AppConfig = Depends(get_config)) -> ModelResponse:
async def get_model(model_name: str) -> ModelResponse:
"""Get a specific model by name.
Args:
@@ -118,6 +101,7 @@ async def get_model(model_name: str, config: AppConfig = Depends(get_config)) ->
}
```
"""
config = get_app_config()
model = config.get_model_config(model_name)
if model is None:
raise HTTPException(status_code=404, detail=f"Model '{model_name}' not found")
+2 -58
View File
@@ -11,11 +11,10 @@ import asyncio
import logging
import uuid
from fastapi import APIRouter, HTTPException, Query, Request
from fastapi import APIRouter, Request
from fastapi.responses import StreamingResponse
from app.gateway.authz import require_permission
from app.gateway.deps import get_checkpointer, get_feedback_repo, get_run_event_store, get_run_manager, get_run_store, get_stream_bridge
from app.gateway.deps import get_checkpointer, get_run_manager, get_stream_bridge
from app.gateway.routers.thread_runs import RunCreateRequest
from app.gateway.services import sse_consumer, start_run
from deerflow.runtime import serialize_channel_values
@@ -86,58 +85,3 @@ async def stateless_wait(body: RunCreateRequest, request: Request) -> dict:
logger.exception("Failed to fetch final state for run %s", record.run_id)
return {"status": record.status.value, "error": record.error}
# ---------------------------------------------------------------------------
# Run-scoped read endpoints
# ---------------------------------------------------------------------------
async def _resolve_run(run_id: str, request: Request) -> dict:
"""Fetch run by run_id with user ownership check. Raises 404 if not found."""
run_store = get_run_store(request)
record = await run_store.get(run_id) # user_id=AUTO filters by contextvar
if record is None:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
return record
@router.get("/{run_id}/messages")
@require_permission("runs", "read")
async def run_messages(
run_id: str,
request: Request,
limit: int = Query(default=50, le=200, ge=1),
before_seq: int | None = Query(default=None),
after_seq: int | None = Query(default=None),
) -> dict:
"""Return paginated messages for a run (cursor-based).
Pagination:
- after_seq: messages with seq > after_seq (forward)
- before_seq: messages with seq < before_seq (backward)
- neither: latest messages
Response: { data: [...], has_more: bool }
"""
run = await _resolve_run(run_id, request)
event_store = get_run_event_store(request)
rows = await event_store.list_messages_by_run(
run["thread_id"],
run_id,
limit=limit + 1,
before_seq=before_seq,
after_seq=after_seq,
)
has_more = len(rows) > limit
data = rows[:limit] if has_more else rows
return {"data": data, "has_more": has_more}
@router.get("/{run_id}/feedback")
@require_permission("runs", "read")
async def run_feedback(run_id: str, request: Request) -> list[dict]:
"""Return all feedback for a run."""
run = await _resolve_run(run_id, request)
feedback_repo = get_feedback_repo(request)
return await feedback_repo.list_by_run(run["thread_id"], run_id)
+65 -61
View File
@@ -1,20 +1,29 @@
import json
import logging
import shutil
from pathlib import Path
from fastapi import APIRouter, Depends, HTTPException
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel, Field
from app.gateway.deps import get_config
from app.gateway.path_utils import resolve_thread_virtual_path
from deerflow.agents.lead_agent.prompt import refresh_skills_system_prompt_cache_async
from deerflow.config.app_config import AppConfig
from deerflow.config.extensions_config import ExtensionsConfig, SkillStateConfig, get_extensions_config, reload_extensions_config
from deerflow.skills import Skill
from deerflow.skills.installer import SkillAlreadyExistsError
from deerflow.skills import Skill, load_skills
from deerflow.skills.installer import SkillAlreadyExistsError, install_skill_from_archive
from deerflow.skills.manager import (
append_history,
atomic_write,
custom_skill_exists,
ensure_custom_skill_is_editable,
get_custom_skill_dir,
get_custom_skill_file,
get_skill_history_file,
read_custom_skill_content,
read_history,
validate_skill_markdown_content,
)
from deerflow.skills.security_scanner import scan_skill_content
from deerflow.skills.storage import get_or_new_skill_storage
from deerflow.skills.types import SKILL_MD_FILE, SkillCategory
logger = logging.getLogger(__name__)
@@ -27,7 +36,7 @@ class SkillResponse(BaseModel):
name: str = Field(..., description="Name of the skill")
description: str = Field(..., description="Description of what the skill does")
license: str | None = Field(None, description="License information")
category: SkillCategory = Field(..., description="Category of the skill (public or custom)")
category: str = Field(..., description="Category of the skill (public or custom)")
enabled: bool = Field(default=True, description="Whether this skill is enabled")
@@ -91,9 +100,9 @@ def _skill_to_response(skill: Skill) -> SkillResponse:
summary="List All Skills",
description="Retrieve a list of all available skills from both public and custom directories.",
)
async def list_skills(config: AppConfig = Depends(get_config)) -> SkillsListResponse:
async def list_skills() -> SkillsListResponse:
try:
skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
skills = load_skills(enabled_only=False)
return SkillsListResponse(skills=[_skill_to_response(skill) for skill in skills])
except Exception as e:
logger.error(f"Failed to load skills: {e}", exc_info=True)
@@ -106,10 +115,10 @@ async def list_skills(config: AppConfig = Depends(get_config)) -> SkillsListResp
summary="Install Skill",
description="Install a skill from a .skill file (ZIP archive) located in the thread's user-data directory.",
)
async def install_skill(request: SkillInstallRequest, config: AppConfig = Depends(get_config)) -> SkillInstallResponse:
async def install_skill(request: SkillInstallRequest) -> SkillInstallResponse:
try:
skill_file_path = resolve_thread_virtual_path(request.thread_id, request.path)
result = await get_or_new_skill_storage(app_config=config).ainstall_skill_from_archive(skill_file_path)
result = install_skill_from_archive(skill_file_path)
await refresh_skills_system_prompt_cache_async()
return SkillInstallResponse(**result)
except FileNotFoundError as e:
@@ -126,9 +135,9 @@ async def install_skill(request: SkillInstallRequest, config: AppConfig = Depend
@router.get("/skills/custom", response_model=SkillsListResponse, summary="List Custom Skills")
async def list_custom_skills(config: AppConfig = Depends(get_config)) -> SkillsListResponse:
async def list_custom_skills() -> SkillsListResponse:
try:
skills = [skill for skill in get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False) if skill.category == SkillCategory.CUSTOM]
skills = [skill for skill in load_skills(enabled_only=False) if skill.category == "custom"]
return SkillsListResponse(skills=[_skill_to_response(skill) for skill in skills])
except Exception as e:
logger.error("Failed to list custom skills: %s", e, exc_info=True)
@@ -136,14 +145,13 @@ async def list_custom_skills(config: AppConfig = Depends(get_config)) -> SkillsL
@router.get("/skills/custom/{skill_name}", response_model=CustomSkillContentResponse, summary="Get Custom Skill Content")
async def get_custom_skill(skill_name: str, config: AppConfig = Depends(get_config)) -> CustomSkillContentResponse:
async def get_custom_skill(skill_name: str) -> CustomSkillContentResponse:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
skill = next((s for s in skills if s.name == skill_name and s.category == SkillCategory.CUSTOM), None)
skills = load_skills(enabled_only=False)
skill = next((s for s in skills if s.name == skill_name and s.category == "custom"), None)
if skill is None:
raise HTTPException(status_code=404, detail=f"Custom skill '{skill_name}' not found")
return CustomSkillContentResponse(**_skill_to_response(skill).model_dump(), content=get_or_new_skill_storage(app_config=config).read_custom_skill(skill_name))
return CustomSkillContentResponse(**_skill_to_response(skill).model_dump(), content=read_custom_skill_content(skill_name))
except HTTPException:
raise
except Exception as e:
@@ -152,31 +160,30 @@ async def get_custom_skill(skill_name: str, config: AppConfig = Depends(get_conf
@router.put("/skills/custom/{skill_name}", response_model=CustomSkillContentResponse, summary="Edit Custom Skill")
async def update_custom_skill(skill_name: str, request: CustomSkillUpdateRequest, config: AppConfig = Depends(get_config)) -> CustomSkillContentResponse:
async def update_custom_skill(skill_name: str, request: CustomSkillUpdateRequest) -> CustomSkillContentResponse:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
storage = get_or_new_skill_storage(app_config=config)
storage.ensure_custom_skill_is_editable(skill_name)
storage.validate_skill_markdown_content(skill_name, request.content)
scan = await scan_skill_content(request.content, executable=False, location=f"{skill_name}/{SKILL_MD_FILE}", app_config=config)
ensure_custom_skill_is_editable(skill_name)
validate_skill_markdown_content(skill_name, request.content)
scan = await scan_skill_content(request.content, executable=False, location=f"{skill_name}/SKILL.md")
if scan.decision == "block":
raise HTTPException(status_code=400, detail=f"Security scan blocked the edit: {scan.reason}")
prev_content = storage.read_custom_skill(skill_name)
storage.write_custom_skill(skill_name, SKILL_MD_FILE, request.content)
storage.append_history(
skill_file = get_custom_skill_dir(skill_name) / "SKILL.md"
prev_content = skill_file.read_text(encoding="utf-8")
atomic_write(skill_file, request.content)
append_history(
skill_name,
{
"action": "human_edit",
"author": "human",
"thread_id": None,
"file_path": SKILL_MD_FILE,
"file_path": "SKILL.md",
"prev_content": prev_content,
"new_content": request.content,
"scanner": {"decision": scan.decision, "reason": scan.reason},
},
)
await refresh_skills_system_prompt_cache_async()
return await get_custom_skill(skill_name, config)
return await get_custom_skill(skill_name)
except HTTPException:
raise
except FileNotFoundError as e:
@@ -189,22 +196,24 @@ async def update_custom_skill(skill_name: str, request: CustomSkillUpdateRequest
@router.delete("/skills/custom/{skill_name}", summary="Delete Custom Skill")
async def delete_custom_skill(skill_name: str, config: AppConfig = Depends(get_config)) -> dict[str, bool]:
async def delete_custom_skill(skill_name: str) -> dict[str, bool]:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
storage = get_or_new_skill_storage(app_config=config)
storage.delete_custom_skill(
ensure_custom_skill_is_editable(skill_name)
skill_dir = get_custom_skill_dir(skill_name)
prev_content = read_custom_skill_content(skill_name)
append_history(
skill_name,
history_meta={
{
"action": "human_delete",
"author": "human",
"thread_id": None,
"file_path": SKILL_MD_FILE,
"prev_content": None,
"file_path": "SKILL.md",
"prev_content": prev_content,
"new_content": None,
"scanner": {"decision": "allow", "reason": "Deletion requested."},
},
)
shutil.rmtree(skill_dir)
await refresh_skills_system_prompt_cache_async()
return {"success": True}
except FileNotFoundError as e:
@@ -217,13 +226,11 @@ async def delete_custom_skill(skill_name: str, config: AppConfig = Depends(get_c
@router.get("/skills/custom/{skill_name}/history", response_model=CustomSkillHistoryResponse, summary="Get Custom Skill History")
async def get_custom_skill_history(skill_name: str, config: AppConfig = Depends(get_config)) -> CustomSkillHistoryResponse:
async def get_custom_skill_history(skill_name: str) -> CustomSkillHistoryResponse:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
storage = get_or_new_skill_storage(app_config=config)
if not storage.custom_skill_exists(skill_name) and not storage.get_skill_history_file(skill_name).exists():
if not custom_skill_exists(skill_name) and not get_skill_history_file(skill_name).exists():
raise HTTPException(status_code=404, detail=f"Custom skill '{skill_name}' not found")
return CustomSkillHistoryResponse(history=storage.read_history(skill_name))
return CustomSkillHistoryResponse(history=read_history(skill_name))
except HTTPException:
raise
except Exception as e:
@@ -232,39 +239,38 @@ async def get_custom_skill_history(skill_name: str, config: AppConfig = Depends(
@router.post("/skills/custom/{skill_name}/rollback", response_model=CustomSkillContentResponse, summary="Rollback Custom Skill")
async def rollback_custom_skill(skill_name: str, request: SkillRollbackRequest, config: AppConfig = Depends(get_config)) -> CustomSkillContentResponse:
async def rollback_custom_skill(skill_name: str, request: SkillRollbackRequest) -> CustomSkillContentResponse:
try:
storage = get_or_new_skill_storage(app_config=config)
if not storage.custom_skill_exists(skill_name) and not storage.get_skill_history_file(skill_name).exists():
if not custom_skill_exists(skill_name) and not get_skill_history_file(skill_name).exists():
raise HTTPException(status_code=404, detail=f"Custom skill '{skill_name}' not found")
history = storage.read_history(skill_name)
history = read_history(skill_name)
if not history:
raise HTTPException(status_code=400, detail=f"Custom skill '{skill_name}' has no history")
record = history[request.history_index]
target_content = record.get("prev_content")
if target_content is None:
raise HTTPException(status_code=400, detail="Selected history entry has no previous content to roll back to")
storage.validate_skill_markdown_content(skill_name, target_content)
scan = await scan_skill_content(target_content, executable=False, location=f"{skill_name}/{SKILL_MD_FILE}", app_config=config)
skill_file = storage.get_custom_skill_file(skill_name)
validate_skill_markdown_content(skill_name, target_content)
scan = await scan_skill_content(target_content, executable=False, location=f"{skill_name}/SKILL.md")
skill_file = get_custom_skill_file(skill_name)
current_content = skill_file.read_text(encoding="utf-8") if skill_file.exists() else None
history_entry = {
"action": "rollback",
"author": "human",
"thread_id": None,
"file_path": SKILL_MD_FILE,
"file_path": "SKILL.md",
"prev_content": current_content,
"new_content": target_content,
"rollback_from_ts": record.get("ts"),
"scanner": {"decision": scan.decision, "reason": scan.reason},
}
if scan.decision == "block":
storage.append_history(skill_name, history_entry)
append_history(skill_name, history_entry)
raise HTTPException(status_code=400, detail=f"Rollback blocked by security scanner: {scan.reason}")
storage.write_custom_skill(skill_name, SKILL_MD_FILE, target_content)
storage.append_history(skill_name, history_entry)
atomic_write(skill_file, target_content)
append_history(skill_name, history_entry)
await refresh_skills_system_prompt_cache_async()
return await get_custom_skill(skill_name, config)
return await get_custom_skill(skill_name)
except HTTPException:
raise
except IndexError:
@@ -284,10 +290,9 @@ async def rollback_custom_skill(skill_name: str, request: SkillRollbackRequest,
summary="Get Skill Details",
description="Retrieve detailed information about a specific skill by its name.",
)
async def get_skill(skill_name: str, config: AppConfig = Depends(get_config)) -> SkillResponse:
async def get_skill(skill_name: str) -> SkillResponse:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
skills = load_skills(enabled_only=False)
skill = next((s for s in skills if s.name == skill_name), None)
if skill is None:
@@ -307,10 +312,9 @@ async def get_skill(skill_name: str, config: AppConfig = Depends(get_config)) ->
summary="Update Skill",
description="Update a skill's enabled status by modifying the extensions_config.json file.",
)
async def update_skill(skill_name: str, request: SkillUpdateRequest, config: AppConfig = Depends(get_config)) -> SkillResponse:
async def update_skill(skill_name: str, request: SkillUpdateRequest) -> SkillResponse:
try:
skill_name = skill_name.replace("\r\n", "").replace("\n", "")
skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
skills = load_skills(enabled_only=False)
skill = next((s for s in skills if s.name == skill_name), None)
if skill is None:
@@ -336,7 +340,7 @@ async def update_skill(skill_name: str, request: SkillUpdateRequest, config: App
reload_extensions_config()
await refresh_skills_system_prompt_cache_async()
skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
skills = load_skills(enabled_only=False)
updated_skill = next((s for s in skills if s.name == skill_name), None)
if updated_skill is None:
+7 -16
View File
@@ -1,13 +1,10 @@
import json
import logging
from fastapi import APIRouter, Depends, Request
from fastapi import APIRouter
from langchain_core.messages import HumanMessage, SystemMessage
from pydantic import BaseModel, Field
from app.gateway.authz import require_permission
from app.gateway.deps import get_config
from deerflow.config.app_config import AppConfig
from deerflow.models import create_chat_model
logger = logging.getLogger(__name__)
@@ -101,18 +98,12 @@ def _format_conversation(messages: list[SuggestionMessage]) -> str:
summary="Generate Follow-up Questions",
description="Generate short follow-up questions a user might ask next, based on recent conversation context.",
)
@require_permission("threads", "read", owner_check=True)
async def generate_suggestions(
thread_id: str,
body: SuggestionsRequest,
request: Request,
config: AppConfig = Depends(get_config),
) -> SuggestionsResponse:
if not body.messages:
async def generate_suggestions(thread_id: str, request: SuggestionsRequest) -> SuggestionsResponse:
if not request.messages:
return SuggestionsResponse(suggestions=[])
n = body.n
conversation = _format_conversation(body.messages)
n = request.n
conversation = _format_conversation(request.messages)
if not conversation:
return SuggestionsResponse(suggestions=[])
@@ -129,8 +120,8 @@ async def generate_suggestions(
user_content = f"Conversation Context:\n{conversation}\n\nGenerate {n} follow-up questions"
try:
model = create_chat_model(name=body.model_name, thinking_enabled=False, app_config=config)
response = await model.ainvoke([SystemMessage(content=system_instruction), HumanMessage(content=user_content)], config={"run_name": "suggest_agent"})
model = create_chat_model(name=request.model_name, thinking_enabled=False)
response = await model.ainvoke([SystemMessage(content=system_instruction), HumanMessage(content=user_content)])
raw = _extract_response_text(response.content)
suggestions = _parse_json_string_list(raw) or []
cleaned = [s.replace("\n", " ").strip() for s in suggestions if s.strip()]
+13 -155
View File
@@ -19,10 +19,9 @@ from fastapi import APIRouter, HTTPException, Query, Request
from fastapi.responses import Response, StreamingResponse
from pydantic import BaseModel, Field
from app.gateway.authz import require_permission
from app.gateway.deps import get_checkpointer, get_current_user, get_feedback_repo, get_run_event_store, get_run_manager, get_run_store, get_stream_bridge
from app.gateway.deps import get_checkpointer, get_run_manager, get_stream_bridge
from app.gateway.services import sse_consumer, start_run
from deerflow.runtime import RunRecord, RunStatus, serialize_channel_values
from deerflow.runtime import RunRecord, serialize_channel_values
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/threads", tags=["runs"])
@@ -68,38 +67,11 @@ class RunResponse(BaseModel):
updated_at: str = ""
class ThreadTokenUsageModelBreakdown(BaseModel):
tokens: int = 0
runs: int = 0
class ThreadTokenUsageCallerBreakdown(BaseModel):
lead_agent: int = 0
subagent: int = 0
middleware: int = 0
class ThreadTokenUsageResponse(BaseModel):
thread_id: str
total_tokens: int = 0
total_input_tokens: int = 0
total_output_tokens: int = 0
total_runs: int = 0
by_model: dict[str, ThreadTokenUsageModelBreakdown] = Field(default_factory=dict)
by_caller: ThreadTokenUsageCallerBreakdown = Field(default_factory=ThreadTokenUsageCallerBreakdown)
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def _cancel_conflict_detail(run_id: str, record: RunRecord) -> str:
if record.status in (RunStatus.pending, RunStatus.running):
return f"Run {run_id} is not active on this worker and cannot be cancelled"
return f"Run {run_id} is not cancellable (status: {record.status.value})"
def _record_to_response(record: RunRecord) -> RunResponse:
return RunResponse(
run_id=record.run_id,
@@ -120,7 +92,6 @@ def _record_to_response(record: RunRecord) -> RunResponse:
@router.post("/{thread_id}/runs", response_model=RunResponse)
@require_permission("runs", "create", owner_check=True, require_existing=True)
async def create_run(thread_id: str, body: RunCreateRequest, request: Request) -> RunResponse:
"""Create a background run (returns immediately)."""
record = await start_run(body, thread_id, request)
@@ -128,7 +99,6 @@ async def create_run(thread_id: str, body: RunCreateRequest, request: Request) -
@router.post("/{thread_id}/runs/stream")
@require_permission("runs", "create", owner_check=True, require_existing=True)
async def stream_run(thread_id: str, body: RunCreateRequest, request: Request) -> StreamingResponse:
"""Create a run and stream events via SSE.
@@ -156,7 +126,6 @@ async def stream_run(thread_id: str, body: RunCreateRequest, request: Request) -
@router.post("/{thread_id}/runs/wait", response_model=dict)
@require_permission("runs", "create", owner_check=True, require_existing=True)
async def wait_run(thread_id: str, body: RunCreateRequest, request: Request) -> dict:
"""Create a run and block until it completes, returning the final state."""
record = await start_run(body, thread_id, request)
@@ -182,29 +151,24 @@ async def wait_run(thread_id: str, body: RunCreateRequest, request: Request) ->
@router.get("/{thread_id}/runs", response_model=list[RunResponse])
@require_permission("runs", "read", owner_check=True)
async def list_runs(thread_id: str, request: Request) -> list[RunResponse]:
"""List all runs for a thread."""
run_mgr = get_run_manager(request)
user_id = await get_current_user(request)
records = await run_mgr.list_by_thread(thread_id, user_id=user_id)
records = await run_mgr.list_by_thread(thread_id)
return [_record_to_response(r) for r in records]
@router.get("/{thread_id}/runs/{run_id}", response_model=RunResponse)
@require_permission("runs", "read", owner_check=True)
async def get_run(thread_id: str, run_id: str, request: Request) -> RunResponse:
"""Get details of a specific run."""
run_mgr = get_run_manager(request)
user_id = await get_current_user(request)
record = await run_mgr.get(run_id, user_id=user_id)
record = run_mgr.get(run_id)
if record is None or record.thread_id != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
return _record_to_response(record)
@router.post("/{thread_id}/runs/{run_id}/cancel")
@require_permission("runs", "cancel", owner_check=True, require_existing=True)
async def cancel_run(
thread_id: str,
run_id: str,
@@ -220,13 +184,16 @@ async def cancel_run(
- wait=false: Return immediately with 202
"""
run_mgr = get_run_manager(request)
record = await run_mgr.get(run_id)
record = run_mgr.get(run_id)
if record is None or record.thread_id != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
cancelled = await run_mgr.cancel(run_id, action=action)
if not cancelled:
raise HTTPException(status_code=409, detail=_cancel_conflict_detail(run_id, record))
raise HTTPException(
status_code=409,
detail=f"Run {run_id} is not cancellable (status: {record.status.value})",
)
if wait and record.task is not None:
try:
@@ -239,17 +206,14 @@ async def cancel_run(
@router.get("/{thread_id}/runs/{run_id}/join")
@require_permission("runs", "read", owner_check=True)
async def join_run(thread_id: str, run_id: str, request: Request) -> StreamingResponse:
"""Join an existing run's SSE stream."""
bridge = get_stream_bridge(request)
run_mgr = get_run_manager(request)
record = await run_mgr.get(run_id)
record = run_mgr.get(run_id)
if record is None or record.thread_id != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
if record.store_only:
raise HTTPException(status_code=409, detail=f"Run {run_id} is not active on this worker and cannot be streamed")
bridge = get_stream_bridge(request)
return StreamingResponse(
sse_consumer(bridge, record, request, run_mgr),
media_type="text/event-stream",
@@ -262,7 +226,6 @@ async def join_run(thread_id: str, run_id: str, request: Request) -> StreamingRe
@router.api_route("/{thread_id}/runs/{run_id}/stream", methods=["GET", "POST"], response_model=None)
@require_permission("runs", "read", owner_check=True)
async def stream_existing_run(
thread_id: str,
run_id: str,
@@ -278,18 +241,14 @@ async def stream_existing_run(
remaining buffered events so the client observes a clean shutdown.
"""
run_mgr = get_run_manager(request)
record = await run_mgr.get(run_id)
record = run_mgr.get(run_id)
if record is None or record.thread_id != thread_id:
raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
if record.store_only and action is None:
raise HTTPException(status_code=409, detail=f"Run {run_id} is not active on this worker and cannot be streamed")
# Cancel if an action was requested (stop-button / interrupt flow)
if action is not None:
cancelled = await run_mgr.cancel(run_id, action=action)
if not cancelled:
raise HTTPException(status_code=409, detail=_cancel_conflict_detail(run_id, record))
if wait and record.task is not None:
if cancelled and wait and record.task is not None:
try:
await record.task
except (asyncio.CancelledError, Exception):
@@ -306,104 +265,3 @@ async def stream_existing_run(
"X-Accel-Buffering": "no",
},
)
# ---------------------------------------------------------------------------
# Messages / Events / Token usage endpoints
# ---------------------------------------------------------------------------
@router.get("/{thread_id}/messages")
@require_permission("runs", "read", owner_check=True)
async def list_thread_messages(
thread_id: str,
request: Request,
limit: int = Query(default=50, le=200),
before_seq: int | None = Query(default=None),
after_seq: int | None = Query(default=None),
) -> list[dict]:
"""Return displayable messages for a thread (across all runs), with feedback attached."""
event_store = get_run_event_store(request)
messages = await event_store.list_messages(thread_id, limit=limit, before_seq=before_seq, after_seq=after_seq)
# Attach feedback to the last AI message of each run
feedback_repo = get_feedback_repo(request)
user_id = await get_current_user(request)
feedback_map = await feedback_repo.list_by_thread_grouped(thread_id, user_id=user_id)
# Find the last ai_message per run_id
last_ai_per_run: dict[str, int] = {} # run_id -> index in messages list
for i, msg in enumerate(messages):
if msg.get("event_type") == "ai_message":
last_ai_per_run[msg["run_id"]] = i
# Attach feedback field
last_ai_indices = set(last_ai_per_run.values())
for i, msg in enumerate(messages):
if i in last_ai_indices:
run_id = msg["run_id"]
fb = feedback_map.get(run_id)
msg["feedback"] = (
{
"feedback_id": fb["feedback_id"],
"rating": fb["rating"],
"comment": fb.get("comment"),
}
if fb
else None
)
else:
msg["feedback"] = None
return messages
@router.get("/{thread_id}/runs/{run_id}/messages")
@require_permission("runs", "read", owner_check=True)
async def list_run_messages(
thread_id: str,
run_id: str,
request: Request,
limit: int = Query(default=50, le=200, ge=1),
before_seq: int | None = Query(default=None),
after_seq: int | None = Query(default=None),
) -> dict:
"""Return paginated messages for a specific run.
Response: { data: [...], has_more: bool }
"""
event_store = get_run_event_store(request)
rows = await event_store.list_messages_by_run(
thread_id,
run_id,
limit=limit + 1,
before_seq=before_seq,
after_seq=after_seq,
)
has_more = len(rows) > limit
data = rows[:limit] if has_more else rows
return {"data": data, "has_more": has_more}
@router.get("/{thread_id}/runs/{run_id}/events")
@require_permission("runs", "read", owner_check=True)
async def list_run_events(
thread_id: str,
run_id: str,
request: Request,
event_types: str | None = Query(default=None),
limit: int = Query(default=500, le=2000),
) -> list[dict]:
"""Return the full event stream for a run (debug/audit)."""
event_store = get_run_event_store(request)
types = event_types.split(",") if event_types else None
return await event_store.list_events(thread_id, run_id, event_types=types, limit=limit)
@router.get("/{thread_id}/token-usage", response_model=ThreadTokenUsageResponse)
@require_permission("threads", "read", owner_check=True)
async def thread_token_usage(thread_id: str, request: Request) -> ThreadTokenUsageResponse:
"""Thread-level token usage aggregation."""
run_store = get_run_store(request)
agg = await run_store.aggregate_tokens_by_thread(thread_id)
return ThreadTokenUsageResponse(thread_id=thread_id, **agg)
+256 -222
View File
@@ -13,41 +13,28 @@ matching the LangGraph Platform wire format expected by the
from __future__ import annotations
import logging
import time
import uuid
from typing import Any
from fastapi import APIRouter, HTTPException, Request
from langgraph.checkpoint.base import empty_checkpoint
from pydantic import BaseModel, Field, field_validator
from pydantic import BaseModel, Field
from app.gateway.authz import require_permission
from app.gateway.deps import get_checkpointer
from app.gateway.utils import sanitize_log_param
from app.gateway.deps import get_checkpointer, get_store
from deerflow.config.paths import Paths, get_paths
from deerflow.runtime import serialize_channel_values
from deerflow.runtime.user_context import get_effective_user_id
from deerflow.utils.time import coerce_iso, now_iso
# ---------------------------------------------------------------------------
# Store namespace
# ---------------------------------------------------------------------------
THREADS_NS: tuple[str, ...] = ("threads",)
"""Namespace used by the Store for thread metadata records."""
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/threads", tags=["threads"])
# Metadata keys that the server controls; clients are not allowed to set
# them. Pydantic ``@field_validator("metadata")`` strips them on every
# inbound model below so a malicious client cannot reflect a forged
# owner identity through the API surface. Defense-in-depth — the
# row-level invariant is still ``threads_meta.user_id`` populated from
# the auth contextvar; this list closes the metadata-blob echo gap.
_SERVER_RESERVED_METADATA_KEYS: frozenset[str] = frozenset({"owner_id", "user_id"})
def _strip_reserved_metadata(metadata: dict[str, Any] | None) -> dict[str, Any]:
"""Return ``metadata`` with server-controlled keys removed."""
if not metadata:
return metadata or {}
return {k: v for k, v in metadata.items() if k not in _SERVER_RESERVED_METADATA_KEYS}
# ---------------------------------------------------------------------------
# Response / request models
# ---------------------------------------------------------------------------
@@ -76,11 +63,8 @@ class ThreadCreateRequest(BaseModel):
"""Request body for creating a thread."""
thread_id: str | None = Field(default=None, description="Optional thread ID (auto-generated if omitted)")
assistant_id: str | None = Field(default=None, description="Associate thread with an assistant")
metadata: dict[str, Any] = Field(default_factory=dict, description="Initial metadata")
_strip_reserved = field_validator("metadata")(classmethod(lambda cls, v: _strip_reserved_metadata(v)))
class ThreadSearchRequest(BaseModel):
"""Request body for searching threads."""
@@ -90,28 +74,6 @@ class ThreadSearchRequest(BaseModel):
offset: int = Field(default=0, ge=0, description="Pagination offset")
status: str | None = Field(default=None, description="Filter by thread status")
@field_validator("metadata")
@classmethod
def _validate_metadata_filters(cls, v: dict[str, Any]) -> dict[str, Any]:
"""Reject filter entries the SQL backend cannot compile.
Enforces consistent behaviour across SQL and memory backends.
See ``deerflow.persistence.json_compat`` for the shared validators.
"""
if not v:
return v
from deerflow.persistence.json_compat import validate_metadata_filter_key, validate_metadata_filter_value
bad_entries: list[str] = []
for key, value in v.items():
if not validate_metadata_filter_key(key):
bad_entries.append(f"{key!r} (unsafe key)")
elif not validate_metadata_filter_value(value):
bad_entries.append(f"{key!r} (unsupported value type {type(value).__name__})")
if bad_entries:
raise ValueError(f"Invalid metadata filter entries: {', '.join(bad_entries)}")
return v
class ThreadStateResponse(BaseModel):
"""Response model for thread state."""
@@ -131,8 +93,6 @@ class ThreadPatchRequest(BaseModel):
metadata: dict[str, Any] = Field(default_factory=dict, description="Metadata to merge")
_strip_reserved = field_validator("metadata")(classmethod(lambda cls, v: _strip_reserved_metadata(v)))
class ThreadStateUpdateRequest(BaseModel):
"""Request body for updating thread state (human-in-the-loop resume)."""
@@ -166,25 +126,70 @@ class ThreadHistoryRequest(BaseModel):
# ---------------------------------------------------------------------------
def _delete_thread_data(thread_id: str, paths: Paths | None = None, *, user_id: str | None = None) -> ThreadDeleteResponse:
def _delete_thread_data(thread_id: str, paths: Paths | None = None) -> ThreadDeleteResponse:
"""Delete local persisted filesystem data for a thread."""
path_manager = paths or get_paths()
try:
path_manager.delete_thread_dir(thread_id, user_id=user_id)
path_manager.delete_thread_dir(thread_id)
except ValueError as exc:
raise HTTPException(status_code=422, detail=str(exc)) from exc
except FileNotFoundError:
# Not critical — thread data may not exist on disk
logger.debug("No local thread data to delete for %s", sanitize_log_param(thread_id))
logger.debug("No local thread data to delete for %s", thread_id)
return ThreadDeleteResponse(success=True, message=f"No local data for {thread_id}")
except Exception as exc:
logger.exception("Failed to delete thread data for %s", sanitize_log_param(thread_id))
logger.exception("Failed to delete thread data for %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to delete local thread data.") from exc
logger.info("Deleted local thread data for %s", sanitize_log_param(thread_id))
logger.info("Deleted local thread data for %s", thread_id)
return ThreadDeleteResponse(success=True, message=f"Deleted local thread data for {thread_id}")
async def _store_get(store, thread_id: str) -> dict | None:
"""Fetch a thread record from the Store; returns ``None`` if absent."""
item = await store.aget(THREADS_NS, thread_id)
return item.value if item is not None else None
async def _store_put(store, record: dict) -> None:
"""Write a thread record to the Store."""
await store.aput(THREADS_NS, record["thread_id"], record)
async def _store_upsert(store, thread_id: str, *, metadata: dict | None = None, values: dict | None = None) -> None:
"""Create or refresh a thread record in the Store.
On creation the record is written with ``status="idle"``. On update only
``updated_at`` (and optionally ``metadata`` / ``values``) are changed so
that existing fields are preserved.
``values`` carries the agent-state snapshot exposed to the frontend
(currently just ``{"title": "..."}``).
"""
now = time.time()
existing = await _store_get(store, thread_id)
if existing is None:
await _store_put(
store,
{
"thread_id": thread_id,
"status": "idle",
"created_at": now,
"updated_at": now,
"metadata": metadata or {},
"values": values or {},
},
)
else:
val = dict(existing)
val["updated_at"] = now
if metadata:
val.setdefault("metadata", {}).update(metadata)
if values:
val.setdefault("values", {}).update(values)
await _store_put(store, val)
def _derive_thread_status(checkpoint_tuple) -> str:
"""Derive thread status from checkpoint metadata."""
if checkpoint_tuple is None:
@@ -210,18 +215,22 @@ def _derive_thread_status(checkpoint_tuple) -> str:
@router.delete("/{thread_id}", response_model=ThreadDeleteResponse)
@require_permission("threads", "delete", owner_check=True, require_existing=True)
async def delete_thread_data(thread_id: str, request: Request) -> ThreadDeleteResponse:
"""Delete local persisted filesystem data for a thread.
Cleans DeerFlow-managed thread directories, removes checkpoint data,
and removes the thread_meta row from the configured ThreadMetaStore
(sqlite or memory).
and removes the thread record from the Store.
"""
from app.gateway.deps import get_thread_store
# Clean local filesystem
response = _delete_thread_data(thread_id, user_id=get_effective_user_id())
response = _delete_thread_data(thread_id)
# Remove from Store (best-effort)
store = get_store(request)
if store is not None:
try:
await store.adelete(THREADS_NS, thread_id)
except Exception:
logger.debug("Could not delete store record for thread %s (not critical)", thread_id)
# Remove checkpoints (best-effort)
checkpointer = getattr(request.app.state, "checkpointer", None)
@@ -230,15 +239,7 @@ async def delete_thread_data(thread_id: str, request: Request) -> ThreadDeleteRe
if hasattr(checkpointer, "adelete_thread"):
await checkpointer.adelete_thread(thread_id)
except Exception:
logger.debug("Could not delete checkpoints for thread %s (not critical)", sanitize_log_param(thread_id))
# Remove thread_meta row (best-effort) — required for sqlite backend
# so the deleted thread no longer appears in /threads/search.
try:
thread_store = get_thread_store(request)
await thread_store.delete(thread_id)
except Exception:
logger.debug("Could not delete thread_meta for %s (not critical)", sanitize_log_param(thread_id))
logger.debug("Could not delete checkpoints for thread %s (not critical)", thread_id)
return response
@@ -247,44 +248,49 @@ async def delete_thread_data(thread_id: str, request: Request) -> ThreadDeleteRe
async def create_thread(body: ThreadCreateRequest, request: Request) -> ThreadResponse:
"""Create a new thread.
Writes a thread_meta record (so the thread appears in /threads/search)
and an empty checkpoint (so state endpoints work immediately).
The thread record is written to the Store (for fast listing) and an
empty checkpoint is written to the checkpointer (for state reads).
Idempotent: returns the existing record when ``thread_id`` already exists.
"""
from app.gateway.deps import get_thread_store
store = get_store(request)
checkpointer = get_checkpointer(request)
thread_store = get_thread_store(request)
thread_id = body.thread_id or str(uuid.uuid4())
now = now_iso()
# ``body.metadata`` is already stripped of server-reserved keys by
# ``ThreadCreateRequest._strip_reserved`` — see the model definition.
now = time.time()
# Idempotency: return existing record when already present
existing_record = await thread_store.get(thread_id)
if existing_record is not None:
return ThreadResponse(
thread_id=thread_id,
status=existing_record.get("status", "idle"),
created_at=coerce_iso(existing_record.get("created_at", "")),
updated_at=coerce_iso(existing_record.get("updated_at", "")),
metadata=existing_record.get("metadata", {}),
)
# Idempotency: return existing record from Store when already present
if store is not None:
existing_record = await _store_get(store, thread_id)
if existing_record is not None:
return ThreadResponse(
thread_id=thread_id,
status=existing_record.get("status", "idle"),
created_at=str(existing_record.get("created_at", "")),
updated_at=str(existing_record.get("updated_at", "")),
metadata=existing_record.get("metadata", {}),
)
# Write thread_meta so the thread appears in /threads/search immediately
try:
await thread_store.create(
thread_id,
assistant_id=getattr(body, "assistant_id", None),
metadata=body.metadata,
)
except Exception:
logger.exception("Failed to write thread_meta for %s", sanitize_log_param(thread_id))
raise HTTPException(status_code=500, detail="Failed to create thread")
# Write thread record to Store
if store is not None:
try:
await _store_put(
store,
{
"thread_id": thread_id,
"status": "idle",
"created_at": now,
"updated_at": now,
"metadata": body.metadata,
},
)
except Exception:
logger.exception("Failed to write thread %s to store", thread_id)
raise HTTPException(status_code=500, detail="Failed to create thread")
# Write an empty checkpoint so state endpoints work immediately
config = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ""}}
try:
from langgraph.checkpoint.base import empty_checkpoint
ckpt_metadata = {
"step": -1,
"source": "input",
@@ -295,15 +301,15 @@ async def create_thread(body: ThreadCreateRequest, request: Request) -> ThreadRe
}
await checkpointer.aput(config, empty_checkpoint(), ckpt_metadata, {})
except Exception:
logger.exception("Failed to create checkpoint for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to create checkpoint for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to create thread")
logger.info("Thread created: %s", sanitize_log_param(thread_id))
logger.info("Thread created: %s", thread_id)
return ThreadResponse(
thread_id=thread_id,
status="idle",
created_at=now,
updated_at=now,
created_at=str(now),
updated_at=str(now),
metadata=body.metadata,
)
@@ -312,105 +318,173 @@ async def create_thread(body: ThreadCreateRequest, request: Request) -> ThreadRe
async def search_threads(body: ThreadSearchRequest, request: Request) -> list[ThreadResponse]:
"""Search and list threads.
Delegates to the configured ThreadMetaStore implementation
(SQL-backed for sqlite/postgres, Store-backed for memory mode).
"""
from app.gateway.deps import get_thread_store
from deerflow.persistence.thread_meta import InvalidMetadataFilterError
Two-phase approach:
repo = get_thread_store(request)
**Phase 1 — Store (fast path, O(threads))**: returns threads that were
created or run through this Gateway. Store records are tiny metadata
dicts so fetching all of them at once is cheap.
**Phase 2 — Checkpointer supplement (lazy migration)**: threads that
were created directly by LangGraph Server (and therefore absent from the
Store) are discovered here by iterating the shared checkpointer. Any
newly found thread is immediately written to the Store so that the next
search skips Phase 2 for that thread — the Store converges to a full
index over time without a one-shot migration job.
"""
store = get_store(request)
checkpointer = get_checkpointer(request)
# -----------------------------------------------------------------------
# Phase 1: Store
# -----------------------------------------------------------------------
merged: dict[str, ThreadResponse] = {}
if store is not None:
try:
items = await store.asearch(THREADS_NS, limit=10_000)
except Exception:
logger.warning("Store search failed — falling back to checkpointer only", exc_info=True)
items = []
for item in items:
val = item.value
merged[val["thread_id"]] = ThreadResponse(
thread_id=val["thread_id"],
status=val.get("status", "idle"),
created_at=str(val.get("created_at", "")),
updated_at=str(val.get("updated_at", "")),
metadata=val.get("metadata", {}),
values=val.get("values", {}),
)
# -----------------------------------------------------------------------
# Phase 2: Checkpointer supplement
# Discovers threads not yet in the Store (e.g. created by LangGraph
# Server) and lazily migrates them so future searches skip this phase.
# -----------------------------------------------------------------------
try:
rows = await repo.search(
metadata=body.metadata or None,
status=body.status,
limit=body.limit,
offset=body.offset,
)
except InvalidMetadataFilterError as exc:
raise HTTPException(status_code=400, detail=str(exc)) from exc
return [
ThreadResponse(
thread_id=r["thread_id"],
status=r.get("status", "idle"),
# ``coerce_iso`` heals legacy unix-second values that
# ``MemoryThreadMetaStore`` historically wrote with ``time.time()``;
# SQL-backed rows already arrive as ISO strings and pass through.
created_at=coerce_iso(r.get("created_at", "")),
updated_at=coerce_iso(r.get("updated_at", "")),
metadata=r.get("metadata", {}),
values={"title": r["display_name"]} if r.get("display_name") else {},
interrupts={},
)
for r in rows
]
async for checkpoint_tuple in checkpointer.alist(None):
cfg = getattr(checkpoint_tuple, "config", {})
thread_id = cfg.get("configurable", {}).get("thread_id")
if not thread_id or thread_id in merged:
continue
# Skip sub-graph checkpoints (checkpoint_ns is non-empty for those)
if cfg.get("configurable", {}).get("checkpoint_ns", ""):
continue
ckpt_meta = getattr(checkpoint_tuple, "metadata", {}) or {}
# Strip LangGraph internal keys from the user-visible metadata dict
user_meta = {k: v for k, v in ckpt_meta.items() if k not in ("created_at", "updated_at", "step", "source", "writes", "parents")}
# Extract state values (title) from the checkpoint's channel_values
checkpoint_data = getattr(checkpoint_tuple, "checkpoint", {}) or {}
channel_values = checkpoint_data.get("channel_values", {})
ckpt_values = {}
if title := channel_values.get("title"):
ckpt_values["title"] = title
thread_resp = ThreadResponse(
thread_id=thread_id,
status=_derive_thread_status(checkpoint_tuple),
created_at=str(ckpt_meta.get("created_at", "")),
updated_at=str(ckpt_meta.get("updated_at", ckpt_meta.get("created_at", ""))),
metadata=user_meta,
values=ckpt_values,
)
merged[thread_id] = thread_resp
# Lazy migration — write to Store so the next search finds it there
if store is not None:
try:
await _store_upsert(store, thread_id, metadata=user_meta, values=ckpt_values or None)
except Exception:
logger.debug("Failed to migrate thread %s to store (non-fatal)", thread_id)
except Exception:
logger.exception("Checkpointer scan failed during thread search")
# Don't raise — return whatever was collected from Store + partial scan
# -----------------------------------------------------------------------
# Phase 3: Filter → sort → paginate
# -----------------------------------------------------------------------
results = list(merged.values())
if body.metadata:
results = [r for r in results if all(r.metadata.get(k) == v for k, v in body.metadata.items())]
if body.status:
results = [r for r in results if r.status == body.status]
results.sort(key=lambda r: r.updated_at, reverse=True)
return results[body.offset : body.offset + body.limit]
@router.patch("/{thread_id}", response_model=ThreadResponse)
@require_permission("threads", "write", owner_check=True, require_existing=True)
async def patch_thread(thread_id: str, body: ThreadPatchRequest, request: Request) -> ThreadResponse:
"""Merge metadata into a thread record."""
from app.gateway.deps import get_thread_store
store = get_store(request)
if store is None:
raise HTTPException(status_code=503, detail="Store not available")
thread_store = get_thread_store(request)
record = await thread_store.get(thread_id)
record = await _store_get(store, thread_id)
if record is None:
raise HTTPException(status_code=404, detail=f"Thread {thread_id} not found")
# ``body.metadata`` already stripped by ``ThreadPatchRequest._strip_reserved``.
now = time.time()
updated = dict(record)
updated.setdefault("metadata", {}).update(body.metadata)
updated["updated_at"] = now
try:
await thread_store.update_metadata(thread_id, body.metadata)
await _store_put(store, updated)
except Exception:
logger.exception("Failed to patch thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to patch thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to update thread")
# Re-read to get the merged metadata + refreshed updated_at
record = await thread_store.get(thread_id) or record
return ThreadResponse(
thread_id=thread_id,
status=record.get("status", "idle"),
created_at=coerce_iso(record.get("created_at", "")),
updated_at=coerce_iso(record.get("updated_at", "")),
metadata=record.get("metadata", {}),
status=updated.get("status", "idle"),
created_at=str(updated.get("created_at", "")),
updated_at=str(now),
metadata=updated.get("metadata", {}),
)
@router.get("/{thread_id}", response_model=ThreadResponse)
@require_permission("threads", "read", owner_check=True)
async def get_thread(thread_id: str, request: Request) -> ThreadResponse:
"""Get thread info.
Reads metadata from the ThreadMetaStore and derives the accurate
execution status from the checkpointer. Falls back to the checkpointer
alone for threads that pre-date ThreadMetaStore adoption (backward compat).
Reads metadata from the Store and derives the accurate execution
status from the checkpointer. Falls back to the checkpointer alone
for threads that pre-date Store adoption (backward compat).
"""
from app.gateway.deps import get_thread_store
thread_store = get_thread_store(request)
store = get_store(request)
checkpointer = get_checkpointer(request)
record: dict | None = await thread_store.get(thread_id)
record: dict | None = None
if store is not None:
record = await _store_get(store, thread_id)
# Derive accurate status from the checkpointer
config = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ""}}
try:
checkpoint_tuple = await checkpointer.aget_tuple(config)
except Exception:
logger.exception("Failed to get checkpoint for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to get checkpoint for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to get thread")
if record is None and checkpoint_tuple is None:
raise HTTPException(status_code=404, detail=f"Thread {thread_id} not found")
# If the thread exists in the checkpointer but not in thread_meta (e.g.
# legacy data created before thread_meta adoption), synthesize a minimal
# record from the checkpoint metadata.
# If the thread exists in the checkpointer but not the store (e.g. legacy
# data), synthesize a minimal store record from the checkpoint metadata.
if record is None and checkpoint_tuple is not None:
ckpt_meta = getattr(checkpoint_tuple, "metadata", {}) or {}
record = {
"thread_id": thread_id,
"status": "idle",
"created_at": coerce_iso(ckpt_meta.get("created_at", "")),
"updated_at": coerce_iso(ckpt_meta.get("updated_at", ckpt_meta.get("created_at", ""))),
"created_at": ckpt_meta.get("created_at", ""),
"updated_at": ckpt_meta.get("updated_at", ckpt_meta.get("created_at", "")),
"metadata": {k: v for k, v in ckpt_meta.items() if k not in ("created_at", "updated_at", "step", "source", "writes", "parents")},
}
@@ -424,16 +498,14 @@ async def get_thread(thread_id: str, request: Request) -> ThreadResponse:
return ThreadResponse(
thread_id=thread_id,
status=status,
created_at=coerce_iso(record.get("created_at", "")),
updated_at=coerce_iso(record.get("updated_at", "")),
created_at=str(record.get("created_at", "")),
updated_at=str(record.get("updated_at", "")),
metadata=record.get("metadata", {}),
values=serialize_channel_values(channel_values),
)
# ---------------------------------------------------------------------------
@router.get("/{thread_id}/state", response_model=ThreadStateResponse)
@require_permission("threads", "read", owner_check=True)
async def get_thread_state(thread_id: str, request: Request) -> ThreadStateResponse:
"""Get the latest state snapshot for a thread.
@@ -446,7 +518,7 @@ async def get_thread_state(thread_id: str, request: Request) -> ThreadStateRespo
try:
checkpoint_tuple = await checkpointer.aget_tuple(config)
except Exception:
logger.exception("Failed to get state for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to get state for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to get thread state")
if checkpoint_tuple is None:
@@ -470,34 +542,28 @@ async def get_thread_state(thread_id: str, request: Request) -> ThreadStateRespo
next_tasks = [t.name for t in tasks_raw if hasattr(t, "name")]
tasks = [{"id": getattr(t, "id", ""), "name": getattr(t, "name", "")} for t in tasks_raw]
values = serialize_channel_values(channel_values)
return ThreadStateResponse(
values=values,
values=serialize_channel_values(channel_values),
next=next_tasks,
metadata=metadata,
checkpoint={"id": checkpoint_id, "ts": coerce_iso(metadata.get("created_at", ""))},
checkpoint={"id": checkpoint_id, "ts": str(metadata.get("created_at", ""))},
checkpoint_id=checkpoint_id,
parent_checkpoint_id=parent_checkpoint_id,
created_at=coerce_iso(metadata.get("created_at", "")),
created_at=str(metadata.get("created_at", "")),
tasks=tasks,
)
@router.post("/{thread_id}/state", response_model=ThreadStateResponse)
@require_permission("threads", "write", owner_check=True, require_existing=True)
async def update_thread_state(thread_id: str, body: ThreadStateUpdateRequest, request: Request) -> ThreadStateResponse:
"""Update thread state (e.g. for human-in-the-loop resume or title rename).
Writes a new checkpoint that merges *body.values* into the latest
channel values, then syncs any updated ``title`` field through the
ThreadMetaStore abstraction so that ``/threads/search`` reflects the
change immediately in both sqlite and memory backends.
channel values, then syncs any updated ``title`` field back to the Store
so that ``/threads/search`` reflects the change immediately.
"""
from app.gateway.deps import get_thread_store
checkpointer = get_checkpointer(request)
thread_store = get_thread_store(request)
store = get_store(request)
# checkpoint_ns must be present in the config for aput — default to ""
# (the root graph namespace). checkpoint_id is optional; omitting it
@@ -514,7 +580,7 @@ async def update_thread_state(thread_id: str, body: ThreadStateUpdateRequest, re
try:
checkpoint_tuple = await checkpointer.aget_tuple(read_config)
except Exception:
logger.exception("Failed to get state for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to get state for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to get thread state")
if checkpoint_tuple is None:
@@ -529,7 +595,7 @@ async def update_thread_state(thread_id: str, body: ThreadStateUpdateRequest, re
channel_values.update(body.values)
checkpoint["channel_values"] = channel_values
metadata["updated_at"] = now_iso()
metadata["updated_at"] = time.time()
if body.as_node:
metadata["source"] = "update"
@@ -548,43 +614,32 @@ async def update_thread_state(thread_id: str, body: ThreadStateUpdateRequest, re
try:
new_config = await checkpointer.aput(write_config, checkpoint, metadata, {})
except Exception:
logger.exception("Failed to update state for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to update state for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to update thread state")
new_checkpoint_id: str | None = None
if isinstance(new_config, dict):
new_checkpoint_id = new_config.get("configurable", {}).get("checkpoint_id")
# Sync title changes through the ThreadMetaStore abstraction so /threads/search
# reflects them immediately in both sqlite and memory backends.
if body.values and "title" in body.values:
new_title = body.values["title"]
if new_title: # Skip empty strings and None
try:
await thread_store.update_display_name(thread_id, new_title)
except Exception:
logger.debug("Failed to sync title to thread_meta for %s (non-fatal)", sanitize_log_param(thread_id))
# Sync title changes to the Store so /threads/search reflects them immediately.
if store is not None and body.values and "title" in body.values:
try:
await _store_upsert(store, thread_id, values={"title": body.values["title"]})
except Exception:
logger.debug("Failed to sync title to store for thread %s (non-fatal)", thread_id)
return ThreadStateResponse(
values=serialize_channel_values(channel_values),
next=[],
metadata=metadata,
checkpoint_id=new_checkpoint_id,
created_at=coerce_iso(metadata.get("created_at", "")),
created_at=str(metadata.get("created_at", "")),
)
@router.post("/{thread_id}/history", response_model=list[HistoryEntry])
@require_permission("threads", "read", owner_check=True)
async def get_thread_history(thread_id: str, body: ThreadHistoryRequest, request: Request) -> list[HistoryEntry]:
"""Get checkpoint history for a thread.
Messages are read from the checkpointer's channel values (the
authoritative source) and serialized via
:func:`~deerflow.runtime.serialization.serialize_channel_values`.
Only the latest (first) checkpoint carries the ``messages`` key to
avoid duplicating them across every entry.
"""
"""Get checkpoint history for a thread."""
checkpointer = get_checkpointer(request)
config: dict[str, Any] = {"configurable": {"thread_id": thread_id}}
@@ -592,7 +647,6 @@ async def get_thread_history(thread_id: str, body: ThreadHistoryRequest, request
config["configurable"]["checkpoint_id"] = body.before
entries: list[HistoryEntry] = []
is_latest_checkpoint = True
try:
async for checkpoint_tuple in checkpointer.alist(config, limit=body.limit):
ckpt_config = getattr(checkpoint_tuple, "config", {})
@@ -607,42 +661,22 @@ async def get_thread_history(thread_id: str, body: ThreadHistoryRequest, request
channel_values = checkpoint.get("channel_values", {})
# Build values from checkpoint channel_values
values: dict[str, Any] = {}
if title := channel_values.get("title"):
values["title"] = title
if thread_data := channel_values.get("thread_data"):
values["thread_data"] = thread_data
# Attach messages only to the latest checkpoint entry.
if is_latest_checkpoint:
messages = channel_values.get("messages")
if messages:
values["messages"] = serialize_channel_values({"messages": messages}).get("messages", [])
is_latest_checkpoint = False
# Derive next tasks
tasks_raw = getattr(checkpoint_tuple, "tasks", []) or []
next_tasks = [t.name for t in tasks_raw if hasattr(t, "name")]
# Strip LangGraph internal keys from metadata
user_meta = {k: v for k, v in metadata.items() if k not in ("created_at", "updated_at", "step", "source", "writes", "parents")}
# Keep step for ordering context
if "step" in metadata:
user_meta["step"] = metadata["step"]
entries.append(
HistoryEntry(
checkpoint_id=checkpoint_id,
parent_checkpoint_id=parent_id,
metadata=user_meta,
values=values,
created_at=coerce_iso(metadata.get("created_at", "")),
metadata=metadata,
values=serialize_channel_values(channel_values),
created_at=str(metadata.get("created_at", "")),
next=next_tasks,
)
)
except Exception:
logger.exception("Failed to get history for thread %s", sanitize_log_param(thread_id))
logger.exception("Failed to get history for thread %s", thread_id)
raise HTTPException(status_code=500, detail="Failed to get thread history")
return entries
+24 -198
View File
@@ -4,26 +4,19 @@ import logging
import os
import stat
from fastapi import APIRouter, Depends, File, HTTPException, Request, UploadFile
from pydantic import BaseModel, Field
from fastapi import APIRouter, File, HTTPException, UploadFile
from pydantic import BaseModel
from app.gateway.authz import require_permission
from app.gateway.deps import get_config
from deerflow.config.app_config import AppConfig
from deerflow.config.paths import get_paths
from deerflow.runtime.user_context import get_effective_user_id
from deerflow.sandbox.sandbox_provider import SandboxProvider, get_sandbox_provider
from deerflow.sandbox.sandbox_provider import get_sandbox_provider
from deerflow.uploads.manager import (
PathTraversalError,
UnsafeUploadPathError,
claim_unique_filename,
delete_file_safe,
enrich_file_listing,
ensure_uploads_dir,
get_uploads_dir,
list_files_in_dir,
normalize_filename,
open_upload_file_no_symlink,
upload_artifact_url,
upload_virtual_path,
)
@@ -33,11 +26,6 @@ logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/threads/{thread_id}/uploads", tags=["uploads"])
UPLOAD_CHUNK_SIZE = 8192
DEFAULT_MAX_FILES = 10
DEFAULT_MAX_FILE_SIZE = 50 * 1024 * 1024
DEFAULT_MAX_TOTAL_SIZE = 100 * 1024 * 1024
class UploadResponse(BaseModel):
"""Response model for file upload."""
@@ -45,15 +33,6 @@ class UploadResponse(BaseModel):
success: bool
files: list[dict[str, str]]
message: str
skipped_files: list[str] = Field(default_factory=list)
class UploadLimits(BaseModel):
"""Application-level upload limits exposed to clients."""
max_files: int
max_file_size: int
max_total_size: int
def _make_file_sandbox_writable(file_path: os.PathLike[str] | str) -> None:
@@ -74,188 +53,66 @@ def _make_file_sandbox_writable(file_path: os.PathLike[str] | str) -> None:
os.chmod(file_path, writable_mode, **chmod_kwargs)
def _uses_thread_data_mounts(sandbox_provider: SandboxProvider) -> bool:
return bool(getattr(sandbox_provider, "uses_thread_data_mounts", False))
def _get_uploads_config_value(app_config: AppConfig, key: str, default: object) -> object:
"""Read a value from the uploads config, supporting dict and attribute access."""
uploads_cfg = getattr(app_config, "uploads", None)
if isinstance(uploads_cfg, dict):
return uploads_cfg.get(key, default)
return getattr(uploads_cfg, key, default)
def _get_upload_limit(app_config: AppConfig, key: str, default: int, *, legacy_key: str | None = None) -> int:
try:
value = _get_uploads_config_value(app_config, key, None)
if value is None and legacy_key is not None:
value = _get_uploads_config_value(app_config, legacy_key, None)
if value is None:
value = default
limit = int(value)
if limit <= 0:
raise ValueError
return limit
except Exception:
logger.warning("Invalid uploads.%s value; falling back to %d", key, default)
return default
def _get_upload_limits(app_config: AppConfig) -> UploadLimits:
return UploadLimits(
max_files=_get_upload_limit(app_config, "max_files", DEFAULT_MAX_FILES, legacy_key="max_file_count"),
max_file_size=_get_upload_limit(app_config, "max_file_size", DEFAULT_MAX_FILE_SIZE, legacy_key="max_single_file_size"),
max_total_size=_get_upload_limit(app_config, "max_total_size", DEFAULT_MAX_TOTAL_SIZE),
)
def _cleanup_uploaded_paths(paths: list[os.PathLike[str] | str]) -> None:
for path in reversed(paths):
try:
os.unlink(path)
except FileNotFoundError:
pass
except Exception:
logger.warning("Failed to clean up upload path after rejected request: %s", path, exc_info=True)
async def _write_upload_file_with_limits(
file: UploadFile,
*,
uploads_dir: os.PathLike[str] | str,
display_filename: str,
max_single_file_size: int,
max_total_size: int,
total_size: int,
) -> tuple[os.PathLike[str] | str, int, int]:
file_size = 0
file_path, fh = open_upload_file_no_symlink(uploads_dir, display_filename)
try:
while chunk := await file.read(UPLOAD_CHUNK_SIZE):
file_size += len(chunk)
total_size += len(chunk)
if file_size > max_single_file_size:
raise HTTPException(status_code=413, detail=f"File too large: {display_filename}")
if total_size > max_total_size:
raise HTTPException(status_code=413, detail="Total upload size too large")
fh.write(chunk)
except Exception:
fh.close()
try:
os.unlink(file_path)
except FileNotFoundError:
pass
raise
else:
fh.close()
return file_path, file_size, total_size
def _auto_convert_documents_enabled(app_config: AppConfig) -> bool:
"""Return whether automatic host-side document conversion is enabled.
The secure default is disabled unless an operator explicitly opts in via
uploads.auto_convert_documents in config.yaml.
"""
try:
raw = _get_uploads_config_value(app_config, "auto_convert_documents", False)
if isinstance(raw, str):
return raw.strip().lower() in {"1", "true", "yes", "on"}
return bool(raw)
except Exception:
return False
@router.post("", response_model=UploadResponse)
@require_permission("threads", "write", owner_check=True, require_existing=False)
async def upload_files(
thread_id: str,
request: Request,
files: list[UploadFile] = File(...),
config: AppConfig = Depends(get_config),
) -> UploadResponse:
"""Upload multiple files to a thread's uploads directory."""
if not files:
raise HTTPException(status_code=400, detail="No files provided")
limits = _get_upload_limits(config)
if len(files) > limits.max_files:
raise HTTPException(status_code=413, detail=f"Too many files: maximum is {limits.max_files}")
try:
uploads_dir = ensure_uploads_dir(thread_id)
except ValueError as e:
raise HTTPException(status_code=400, detail=str(e))
sandbox_uploads = get_paths().sandbox_uploads_dir(thread_id, user_id=get_effective_user_id())
sandbox_uploads = get_paths().sandbox_uploads_dir(thread_id)
uploaded_files = []
written_paths = []
sandbox_sync_targets = []
skipped_files = []
total_size = 0
# Track filenames within this request so duplicate form parts do not
# silently truncate each other. Existing uploads keep the historical
# overwrite behavior for a single replacement upload.
seen_filenames: set[str] = set()
sandbox_provider = get_sandbox_provider()
sync_to_sandbox = not _uses_thread_data_mounts(sandbox_provider)
sandbox = None
if sync_to_sandbox:
sandbox_id = sandbox_provider.acquire(thread_id)
sandbox = sandbox_provider.get(sandbox_id)
if sandbox is None:
raise HTTPException(status_code=500, detail="Failed to acquire sandbox")
auto_convert_documents = _auto_convert_documents_enabled(config)
sandbox_id = sandbox_provider.acquire(thread_id)
sandbox = sandbox_provider.get(sandbox_id)
for file in files:
if not file.filename:
continue
try:
original_filename = normalize_filename(file.filename)
safe_filename = claim_unique_filename(original_filename, seen_filenames)
safe_filename = normalize_filename(file.filename)
except ValueError:
logger.warning(f"Skipping file with unsafe filename: {file.filename!r}")
continue
try:
file_path, file_size, total_size = await _write_upload_file_with_limits(
file,
uploads_dir=uploads_dir,
display_filename=safe_filename,
max_single_file_size=limits.max_file_size,
max_total_size=limits.max_total_size,
total_size=total_size,
)
written_paths.append(file_path)
content = await file.read()
file_path = uploads_dir / safe_filename
file_path.write_bytes(content)
virtual_path = upload_virtual_path(safe_filename)
if sync_to_sandbox:
sandbox_sync_targets.append((file_path, virtual_path))
if sandbox_id != "local":
_make_file_sandbox_writable(file_path)
sandbox.update_file(virtual_path, content)
file_info = {
"filename": safe_filename,
"size": str(file_size),
"size": str(len(content)),
"path": str(sandbox_uploads / safe_filename),
"virtual_path": virtual_path,
"artifact_url": upload_artifact_url(thread_id, safe_filename),
}
if safe_filename != original_filename:
file_info["original_filename"] = original_filename
logger.info(f"Saved file: {safe_filename} ({file_size} bytes) to {file_info['path']}")
logger.info(f"Saved file: {safe_filename} ({len(content)} bytes) to {file_info['path']}")
file_ext = file_path.suffix.lower()
if auto_convert_documents and file_ext in CONVERTIBLE_EXTENSIONS:
if file_ext in CONVERTIBLE_EXTENSIONS:
md_path = await convert_file_to_markdown(file_path)
if md_path:
written_paths.append(md_path)
md_virtual_path = upload_virtual_path(md_path.name)
if sync_to_sandbox:
sandbox_sync_targets.append((md_path, md_virtual_path))
if sandbox_id != "local":
_make_file_sandbox_writable(md_path)
sandbox.update_file(md_virtual_path, md_path.read_bytes())
file_info["markdown_file"] = md_path.name
file_info["markdown_path"] = str(sandbox_uploads / md_path.name)
@@ -264,49 +121,19 @@ async def upload_files(
uploaded_files.append(file_info)
except HTTPException as e:
_cleanup_uploaded_paths(written_paths)
raise e
except UnsafeUploadPathError as e:
logger.warning("Skipping upload with unsafe destination %s: %s", file.filename, e)
skipped_files.append(safe_filename)
continue
except Exception as e:
logger.error(f"Failed to upload {file.filename}: {e}")
_cleanup_uploaded_paths(written_paths)
raise HTTPException(status_code=500, detail=f"Failed to upload {file.filename}: {str(e)}")
if sync_to_sandbox:
for file_path, virtual_path in sandbox_sync_targets:
_make_file_sandbox_writable(file_path)
sandbox.update_file(virtual_path, file_path.read_bytes())
message = f"Successfully uploaded {len(uploaded_files)} file(s)"
if skipped_files:
message += f"; skipped {len(skipped_files)} unsafe file(s)"
return UploadResponse(
success=not skipped_files,
success=True,
files=uploaded_files,
message=message,
skipped_files=skipped_files,
message=f"Successfully uploaded {len(uploaded_files)} file(s)",
)
@router.get("/limits", response_model=UploadLimits)
@require_permission("threads", "read", owner_check=True)
async def get_upload_limits(
thread_id: str,
request: Request,
config: AppConfig = Depends(get_config),
) -> UploadLimits:
"""Return upload limits used by the gateway for this thread."""
return _get_upload_limits(config)
@router.get("/list", response_model=dict)
@require_permission("threads", "read", owner_check=True)
async def list_uploaded_files(thread_id: str, request: Request) -> dict:
async def list_uploaded_files(thread_id: str) -> dict:
"""List all files in a thread's uploads directory."""
try:
uploads_dir = get_uploads_dir(thread_id)
@@ -316,7 +143,7 @@ async def list_uploaded_files(thread_id: str, request: Request) -> dict:
enrich_file_listing(result, thread_id)
# Gateway additionally includes the sandbox-relative path.
sandbox_uploads = get_paths().sandbox_uploads_dir(thread_id, user_id=get_effective_user_id())
sandbox_uploads = get_paths().sandbox_uploads_dir(thread_id)
for f in result["files"]:
f["path"] = str(sandbox_uploads / f["filename"])
@@ -324,8 +151,7 @@ async def list_uploaded_files(thread_id: str, request: Request) -> dict:
@router.delete("/{filename}")
@require_permission("threads", "delete", owner_check=True, require_existing=True)
async def delete_uploaded_file(thread_id: str, filename: str, request: Request) -> dict:
async def delete_uploaded_file(thread_id: str, filename: str) -> dict:
"""Delete a file from a thread's uploads directory."""
try:
uploads_dir = get_uploads_dir(thread_id)
+112 -132
View File
@@ -11,15 +11,13 @@ import asyncio
import json
import logging
import re
from collections.abc import Mapping
import time
from typing import Any
from fastapi import HTTPException, Request
from langchain_core.messages import HumanMessage
from app.gateway.deps import get_run_context, get_run_manager, get_stream_bridge
from app.gateway.utils import sanitize_log_param
from deerflow.config.app_config import get_app_config
from app.gateway.deps import get_checkpointer, get_run_manager, get_store, get_stream_bridge
from deerflow.runtime import (
END_SENTINEL,
HEARTBEAT_SENTINEL,
@@ -99,70 +97,13 @@ def normalize_input(raw_input: dict[str, Any] | None) -> dict[str, Any]:
_DEFAULT_ASSISTANT_ID = "lead_agent"
# Whitelist of run-context keys that the langgraph-compat layer forwards from
# ``body.context`` into the run config. ``config["context"]`` exists in
# LangGraph >=0.6, but these values must be written to both ``configurable``
# (for legacy ``_get_runtime_config`` consumers) and ``context`` because
# LangGraph >=1.1.9 no longer makes ``ToolRuntime.context`` fall back to
# ``configurable`` for consumers like ``setup_agent``.
_CONTEXT_CONFIGURABLE_KEYS: frozenset[str] = frozenset(
{
"model_name",
"mode",
"thinking_enabled",
"reasoning_effort",
"is_plan_mode",
"subagent_enabled",
"max_concurrent_subagents",
"agent_name",
"is_bootstrap",
}
)
def merge_run_context_overrides(config: dict[str, Any], context: Mapping[str, Any] | None) -> None:
"""Merge whitelisted keys from ``body.context`` into both ``config['configurable']``
and ``config['context']`` so they are visible to legacy configurable readers and
to LangGraph ``ToolRuntime.context`` consumers (e.g. the ``setup_agent`` tool —
see issue #2677)."""
if not context:
return
configurable = config.setdefault("configurable", {})
runtime_context = config.setdefault("context", {})
for key in _CONTEXT_CONFIGURABLE_KEYS:
if key in context:
if isinstance(configurable, dict):
configurable.setdefault(key, context[key])
if isinstance(runtime_context, dict):
runtime_context.setdefault(key, context[key])
def inject_authenticated_user_context(config: dict[str, Any], request: Request) -> None:
"""Stamp the authenticated user into the run context for background tools.
Tool execution may happen after the request handler has returned, so tools
that persist user-scoped files should not rely only on ambient ContextVars.
The value comes from server-side auth state, never from client context.
"""
user = getattr(request.state, "user", None)
user_id = getattr(user, "id", None)
if user_id is None:
return
runtime_context = config.setdefault("context", {})
if isinstance(runtime_context, dict):
runtime_context["user_id"] = str(user_id)
def resolve_agent_factory(assistant_id: str | None):
"""Resolve the agent factory callable from config.
Custom agents are implemented as ``lead_agent`` + an ``agent_name``
injected into ``configurable`` or ``context`` — see
:func:`build_run_config`. All ``assistant_id`` values therefore map to the
same factory; the routing happens inside ``make_lead_agent`` when it reads
``cfg["agent_name"]``.
injected into ``configurable`` — see :func:`build_run_config`. All
``assistant_id`` values therefore map to the same factory; the routing
happens inside ``make_lead_agent`` when it reads ``cfg["agent_name"]``.
"""
from deerflow.agents.lead_agent.agent import make_lead_agent
@@ -179,12 +120,10 @@ def build_run_config(
"""Build a RunnableConfig dict for the agent.
When *assistant_id* refers to a custom agent (anything other than
``"lead_agent"`` / ``None``), the name is forwarded as ``agent_name`` in
whichever runtime options container is active: ``context`` for
LangGraph >= 0.6.0 requests, otherwise ``configurable``.
``make_lead_agent`` reads this key to load the matching
``agents/<name>/SOUL.md`` and per-agent config — without it the agent
silently runs as the default lead agent.
``"lead_agent"`` / ``None``), the name is forwarded as
``configurable["agent_name"]``. ``make_lead_agent`` reads this key to
load the matching ``agents/<name>/SOUL.md`` and per-agent config —
without it the agent silently runs as the default lead agent.
This mirrors the channel manager's ``_resolve_run_params`` logic so that
the LangGraph Platform-compatible HTTP API and the IM channel path behave
@@ -203,14 +142,7 @@ def build_run_config(
thread_id,
list(request_config.get("configurable", {}).keys()),
)
context_value = request_config["context"]
if context_value is None:
context = {}
elif isinstance(context_value, Mapping):
context = dict(context_value)
else:
raise ValueError("request config 'context' must be a mapping or null.")
config["context"] = context
config["context"] = request_config["context"]
else:
configurable = {"thread_id": thread_id}
configurable.update(request_config.get("configurable", {}))
@@ -222,19 +154,13 @@ def build_run_config(
config["configurable"] = {"thread_id": thread_id}
# Inject custom agent name when the caller specified a non-default assistant.
# Honour an explicit agent_name in the active runtime options container.
if assistant_id and assistant_id != _DEFAULT_ASSISTANT_ID:
normalized = assistant_id.strip().lower().replace("_", "-")
if not normalized or not re.fullmatch(r"[a-z0-9-]+", normalized):
raise ValueError(f"Invalid assistant_id {assistant_id!r}: must contain only letters, digits, and hyphens after normalization.")
if "configurable" in config:
target = config["configurable"]
elif "context" in config:
target = config["context"]
else:
target = config.setdefault("configurable", {})
if target is not None and "agent_name" not in target:
target["agent_name"] = normalized
# Honour an explicit configurable["agent_name"] in the request if already set.
if assistant_id and assistant_id != _DEFAULT_ASSISTANT_ID and "configurable" in config:
if "agent_name" not in config["configurable"]:
normalized = assistant_id.strip().lower().replace("_", "-")
if not normalized or not re.fullmatch(r"[a-z0-9-]+", normalized):
raise ValueError(f"Invalid assistant_id {assistant_id!r}: must contain only letters, digits, and hyphens after normalization.")
config["configurable"]["agent_name"] = normalized
if metadata:
config.setdefault("metadata", {}).update(metadata)
return config
@@ -245,6 +171,71 @@ def build_run_config(
# ---------------------------------------------------------------------------
async def _upsert_thread_in_store(store, thread_id: str, metadata: dict | None) -> None:
"""Create or refresh the thread record in the Store.
Called from :func:`start_run` so that threads created via the stateless
``/runs/stream`` endpoint (which never calls ``POST /threads``) still
appear in ``/threads/search`` results.
"""
# Deferred import to avoid circular import with the threads router module.
from app.gateway.routers.threads import _store_upsert
try:
await _store_upsert(store, thread_id, metadata=metadata)
except Exception:
logger.warning("Failed to upsert thread %s in store (non-fatal)", thread_id)
async def _sync_thread_title_after_run(
run_task: asyncio.Task,
thread_id: str,
checkpointer: Any,
store: Any,
) -> None:
"""Wait for *run_task* to finish, then persist the generated title to the Store.
TitleMiddleware writes the generated title to the LangGraph agent state
(checkpointer) but the Gateway's Store record is not updated automatically.
This coroutine closes that gap by reading the final checkpoint after the
run completes and syncing ``values.title`` into the Store record so that
subsequent ``/threads/search`` responses include the correct title.
Runs as a fire-and-forget :func:`asyncio.create_task`; failures are
logged at DEBUG level and never propagate.
"""
# Wait for the background run task to complete (any outcome).
# asyncio.wait does not propagate task exceptions — it just returns
# when the task is done, cancelled, or failed.
await asyncio.wait({run_task})
# Deferred import to avoid circular import with the threads router module.
from app.gateway.routers.threads import _store_get, _store_put
try:
ckpt_config = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ""}}
ckpt_tuple = await checkpointer.aget_tuple(ckpt_config)
if ckpt_tuple is None:
return
channel_values = ckpt_tuple.checkpoint.get("channel_values", {})
title = channel_values.get("title")
if not title:
return
existing = await _store_get(store, thread_id)
if existing is None:
return
updated = dict(existing)
updated.setdefault("values", {})["title"] = title
updated["updated_at"] = time.time()
await _store_put(store, updated)
logger.debug("Synced title %r for thread %s", title, thread_id)
except Exception:
logger.debug("Failed to sync title for thread %s (non-fatal)", thread_id, exc_info=True)
async def start_run(
body: Any,
thread_id: str,
@@ -264,27 +255,11 @@ async def start_run(
"""
bridge = get_stream_bridge(request)
run_mgr = get_run_manager(request)
run_ctx = get_run_context(request)
checkpointer = get_checkpointer(request)
store = get_store(request)
disconnect = DisconnectMode.cancel if body.on_disconnect == "cancel" else DisconnectMode.continue_
body_context = getattr(body, "context", None) or {}
model_name = body_context.get("model_name")
# Coerce non-string model_name values to str before truncation.
if model_name is not None and not isinstance(model_name, str):
model_name = str(model_name)
# Validate model against the allowlist when a model_name is provided.
if model_name:
app_config = get_app_config()
resolved = app_config.get_model_config(model_name)
if resolved is None:
raise HTTPException(
status_code=400,
detail=f"Model {model_name!r} is not in the configured model allowlist",
)
try:
record = await run_mgr.create_or_reject(
thread_id,
@@ -293,39 +268,41 @@ async def start_run(
metadata=body.metadata or {},
kwargs={"input": body.input, "config": body.config},
multitask_strategy=body.multitask_strategy,
model_name=model_name,
)
except ConflictError as exc:
raise HTTPException(status_code=409, detail=str(exc)) from exc
except UnsupportedStrategyError as exc:
raise HTTPException(status_code=501, detail=str(exc)) from exc
# Upsert thread metadata so the thread appears in /threads/search,
# even for threads that were never explicitly created via POST /threads
# (e.g. stateless runs).
try:
existing = await run_ctx.thread_store.get(thread_id)
if existing is None:
await run_ctx.thread_store.create(
thread_id,
assistant_id=body.assistant_id,
metadata=body.metadata,
)
else:
await run_ctx.thread_store.update_status(thread_id, "running")
except Exception:
logger.warning("Failed to upsert thread_meta for %s (non-fatal)", sanitize_log_param(thread_id))
# Ensure the thread is visible in /threads/search, even for threads that
# were never explicitly created via POST /threads (e.g. stateless runs).
store = get_store(request)
if store is not None:
await _upsert_thread_in_store(store, thread_id, body.metadata)
agent_factory = resolve_agent_factory(body.assistant_id)
graph_input = normalize_input(body.input)
config = build_run_config(thread_id, body.config, body.metadata, assistant_id=body.assistant_id)
# Merge DeerFlow-specific context overrides into both ``configurable`` and ``context``.
# Merge DeerFlow-specific context overrides into configurable.
# The ``context`` field is a custom extension for the langgraph-compat layer
# that carries agent configuration (model_name, thinking_enabled, etc.).
# Only agent-relevant keys are forwarded; unknown keys (e.g. thread_id) are ignored.
merge_run_context_overrides(config, getattr(body, "context", None))
inject_authenticated_user_context(config, request)
context = getattr(body, "context", None)
if context:
_CONTEXT_CONFIGURABLE_KEYS = {
"model_name",
"mode",
"thinking_enabled",
"reasoning_effort",
"is_plan_mode",
"subagent_enabled",
"max_concurrent_subagents",
}
configurable = config.setdefault("configurable", {})
for key in _CONTEXT_CONFIGURABLE_KEYS:
if key in context:
configurable.setdefault(key, context[key])
stream_modes = normalize_stream_modes(body.stream_mode)
@@ -334,7 +311,8 @@ async def start_run(
bridge,
run_mgr,
record,
ctx=run_ctx,
checkpointer=checkpointer,
store=store,
agent_factory=agent_factory,
graph_input=graph_input,
config=config,
@@ -346,9 +324,11 @@ async def start_run(
)
record.task = task
# Title sync is handled by worker.py's finally block which reads the
# title from the checkpoint and calls thread_store.update_display_name
# after the run completes.
# After the run completes, sync the title generated by TitleMiddleware from
# the checkpointer into the Store record so that /threads/search returns the
# correct title instead of an empty values dict.
if store is not None:
asyncio.create_task(_sync_thread_title_after_run(task, thread_id, checkpointer, store))
return record
-6
View File
@@ -1,6 +0,0 @@
"""Shared utility helpers for the Gateway layer."""
def sanitize_log_param(value: str) -> str:
"""Strip control characters to prevent log injection."""
return value.replace("\n", "").replace("\r", "").replace("\x00", "")
+13 -90
View File
@@ -19,72 +19,24 @@ import asyncio
import logging
from dotenv import load_dotenv
from langchain_core.messages import HumanMessage
try:
from prompt_toolkit import PromptSession
from prompt_toolkit.history import InMemoryHistory
_HAS_PROMPT_TOOLKIT = True
except ImportError:
_HAS_PROMPT_TOOLKIT = False
from deerflow.agents import make_lead_agent
load_dotenv()
_LOG_FMT = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
_LOG_DATEFMT = "%Y-%m-%d %H:%M:%S"
def _setup_logging(log_level: int = logging.INFO) -> None:
"""Route logs to ``debug.log`` using *log_level* for the initial root/file setup.
This configures the root logger and the ``debug.log`` file handler so logs do
not print on the interactive console. It is idempotent: any pre-existing
handlers on the root logger (e.g. installed by ``logging.basicConfig`` in
transitively imported modules) are removed so the debug session output only
lands in ``debug.log``.
Note: later config-driven logging adjustments may change named logger
verbosity without raising the root logger or file-handler thresholds set
here, so the eventual contents of ``debug.log`` may not be filtered solely by
this function's ``log_level`` argument.
"""
root = logging.root
for h in list(root.handlers):
root.removeHandler(h)
h.close()
root.setLevel(log_level)
file_handler = logging.FileHandler("debug.log", mode="a", encoding="utf-8")
file_handler.setLevel(log_level)
file_handler.setFormatter(logging.Formatter(_LOG_FMT, datefmt=_LOG_DATEFMT))
root.addHandler(file_handler)
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
datefmt="%Y-%m-%d %H:%M:%S",
)
async def main():
# Install file logging first so warnings emitted while loading config do not
# leak onto the interactive terminal via Python's lastResort handler.
_setup_logging()
from deerflow.config import get_app_config
from deerflow.config.app_config import apply_logging_level
app_config = get_app_config()
apply_logging_level(app_config.log_level)
# Delay the rest of the deerflow imports until *after* logging is installed
# so that any import-time side effects (e.g. deerflow.agents starts a
# background skill-loader thread on import) emit logs to debug.log instead
# of leaking onto the interactive terminal via Python's lastResort handler.
from langchain_core.messages import HumanMessage
from langgraph.runtime import Runtime
from deerflow.agents import make_lead_agent
from deerflow.config.paths import get_paths
from deerflow.mcp import initialize_mcp_tools
from deerflow.runtime.user_context import get_effective_user_id
# Initialize MCP tools at startup
try:
from deerflow.mcp import initialize_mcp_tools
await initialize_mcp_tools()
except Exception as e:
print(f"Warning: Failed to initialize MCP tools: {e}")
@@ -100,29 +52,16 @@ async def main():
}
}
runtime = Runtime(context={"thread_id": config["configurable"]["thread_id"]})
config["configurable"]["__pregel_runtime"] = runtime
agent = make_lead_agent(config)
session = PromptSession(history=InMemoryHistory()) if _HAS_PROMPT_TOOLKIT else None
print("=" * 50)
print("Lead Agent Debug Mode")
print("Type 'quit' or 'exit' to stop")
print(f"Logs: debug.log (log_level={app_config.log_level})")
if not _HAS_PROMPT_TOOLKIT:
print("Tip: `uv sync --group dev` to enable arrow-key & history support")
print("=" * 50)
seen_artifacts: set[str] = set()
while True:
try:
if session:
user_input = (await session.prompt_async("\nYou: ")).strip()
else:
user_input = input("\nYou: ").strip()
user_input = input("\nYou: ").strip()
if not user_input:
continue
if user_input.lower() in ("quit", "exit"):
@@ -131,31 +70,15 @@ async def main():
# Invoke the agent
state = {"messages": [HumanMessage(content=user_input)]}
result = await agent.ainvoke(state, config=config)
result = await agent.ainvoke(state, config=config, context={"thread_id": "debug-thread-001"})
# Print the response
if result.get("messages"):
last_message = result["messages"][-1]
print(f"\nAgent: {last_message.content}")
# Show files presented to the user this turn (new artifacts only)
artifacts = result.get("artifacts") or []
new_artifacts = [p for p in artifacts if p not in seen_artifacts]
if new_artifacts:
thread_id = config["configurable"]["thread_id"]
user_id = get_effective_user_id()
paths = get_paths()
print("\n[Presented files]")
for virtual in new_artifacts:
try:
physical = paths.resolve_virtual_path(thread_id, virtual, user_id=user_id)
print(f" - {virtual}\n{physical}")
except ValueError as exc:
print(f" - {virtual} (failed to resolve physical path: {exc})")
seen_artifacts.update(new_artifacts)
except (KeyboardInterrupt, EOFError):
print("\nGoodbye!")
except KeyboardInterrupt:
print("\nInterrupted. Goodbye!")
break
except Exception as e:
print(f"\nError: {e}")
+35 -52
View File
@@ -6,16 +6,16 @@ This document provides a complete reference for the DeerFlow backend APIs.
DeerFlow backend exposes two sets of APIs:
1. **LangGraph-compatible API** - Agent interactions, threads, and streaming (`/api/langgraph/*`)
1. **LangGraph API** - Agent interactions, threads, and streaming (`/api/langgraph/*`)
2. **Gateway API** - Models, MCP, skills, uploads, and artifacts (`/api/*`)
All APIs are accessed through the Nginx reverse proxy at port 2026.
## LangGraph-compatible API
## LangGraph API
Base URL: `/api/langgraph`
The public LangGraph-compatible API follows LangGraph SDK conventions. In the unified nginx deployment, Gateway owns `/api/langgraph/*` and translates those paths to its native `/api/*` run, thread, and streaming routers.
The LangGraph API is provided by the LangGraph server and follows the LangGraph SDK conventions.
### Threads
@@ -104,11 +104,17 @@ Content-Type: application/json
**Recursion Limit:**
`config.recursion_limit` caps the number of graph steps LangGraph will execute
in a single run. The unified Gateway path defaults to `100` in
`build_run_config` (see `backend/app/gateway/services.py`), which is a safer
starting point for plan-mode or subagent-heavy runs. Clients can still set
`recursion_limit` explicitly in the request body; increase it if you run deeply
nested subagent graphs.
in a single run. The `/api/langgraph/*` endpoints go straight to the LangGraph
server and therefore inherit LangGraph's native default of **25**, which is
too low for plan-mode or subagent-heavy runs — the agent typically errors out
with `GraphRecursionError` after the first round of subagent results comes
back, before the lead agent can synthesize the final answer.
DeerFlow's own Gateway and IM-channel paths mitigate this by defaulting to
`100` in `build_run_config` (see `backend/app/gateway/services.py`), but
clients calling the LangGraph API directly must set `recursion_limit`
explicitly in the request body. `100` matches the Gateway default and is a
safe starting point; increase it if you run deeply nested subagent graphs.
**Configurable Options:**
- `model_name` (string): Override the default model
@@ -535,28 +541,14 @@ All APIs return errors in a consistent format:
## Authentication
DeerFlow enforces authentication for all non-public HTTP routes. Public routes are limited to health/docs metadata and these public auth endpoints:
Currently, DeerFlow does not implement authentication. All APIs are accessible without credentials.
- `POST /api/v1/auth/initialize` creates the first admin account when no admin exists.
- `POST /api/v1/auth/login/local` logs in with email/password and sets an HttpOnly `access_token` cookie.
- `POST /api/v1/auth/register` creates a regular `user` account and sets the session cookie.
- `POST /api/v1/auth/logout` clears the session cookie.
- `GET /api/v1/auth/setup-status` reports whether the first admin still needs to be created.
Note: This is about DeerFlow API authentication. MCP outbound connections can still use OAuth for configured HTTP/SSE MCP servers.
The authenticated auth endpoints are:
- `GET /api/v1/auth/me` returns the current user.
- `POST /api/v1/auth/change-password` changes password, optionally changes email during setup, increments `token_version`, and reissues the cookie.
Protected state-changing requests also require the CSRF double-submit token: send the `csrf_token` cookie value as the `X-CSRF-Token` header. Login/register/initialize/logout are bootstrap auth endpoints: they are exempt from the double-submit token but still reject hostile browser `Origin` headers.
User isolation is enforced from the authenticated user context:
- Thread metadata is scoped by `threads_meta.user_id`; search/read/write/delete APIs only expose the current user's threads.
- Thread files live under `{base_dir}/users/{user_id}/threads/{thread_id}/user-data/` and are exposed inside the sandbox as `/mnt/user-data/`.
- Memory and custom agents are stored under `{base_dir}/users/{user_id}/...`.
Note: MCP outbound connections can still use OAuth for configured HTTP/SSE MCP servers; that is separate from DeerFlow API authentication.
For production deployments, it is recommended to:
1. Use Nginx for basic auth or OAuth integration
2. Deploy behind a VPN or private network
3. Implement custom authentication middleware
---
@@ -575,13 +567,12 @@ location /api/ {
---
## Streaming Support
## WebSocket Support
Gateway's LangGraph-compatible API streams run events with Server-Sent Events (SSE):
The LangGraph server supports WebSocket connections for real-time streaming. Connect to:
```http
POST /api/langgraph/threads/{thread_id}/runs/stream
Accept: text/event-stream
```
ws://localhost:2026/api/langgraph/threads/{thread_id}/runs/stream
```
---
@@ -617,21 +608,13 @@ const response = await fetch('/api/models');
const data = await response.json();
console.log(data.models);
// Create a run and stream SSE events
const streamResponse = await fetch(`/api/langgraph/threads/${threadId}/runs/stream`, {
method: "POST",
headers: {
"Content-Type": "application/json",
Accept: "text/event-stream",
},
body: JSON.stringify({
input: { messages: [{ role: "user", content: "Hello" }] },
stream_mode: ["values", "messages-tuple", "custom"],
}),
});
const reader = streamResponse.body?.getReader();
// Decode and parse SSE frames from reader in your client code.
// Using EventSource for streaming
const eventSource = new EventSource(
`/api/langgraph/threads/${threadId}/runs/stream`
);
eventSource.onmessage = (event) => {
console.log(JSON.parse(event.data));
};
```
### cURL Examples
@@ -666,7 +649,7 @@ curl -X POST http://localhost:2026/api/langgraph/threads/abc123/runs \
}'
```
> The unified Gateway path defaults `config.recursion_limit` to 100 for
> plan-mode and subagent-heavy runs. Clients may still set
> `config.recursion_limit` explicitly — see the [Create Run](#create-run)
> section for details.
> The `/api/langgraph/*` endpoints bypass DeerFlow's Gateway and inherit
> LangGraph's native `recursion_limit` default of 25, which is too low for
> plan-mode or subagent runs. Set `config.recursion_limit` explicitly — see
> the [Create Run](#create-run) section for details.
+30 -30
View File
@@ -14,28 +14,30 @@ This document provides a comprehensive overview of the DeerFlow backend architec
│ Nginx (Port 2026) │
│ Unified Reverse Proxy Entry Point │
│ ┌────────────────────────────────────────────────────────────────────┐ │
│ │ /api/langgraph/* → Gateway LangGraph-compatible runtime (8001) │ │
│ │ /api/* → Gateway REST APIs (8001) │ │
│ │ /api/langgraph/* → LangGraph Server (2024) │ │
│ │ /api/* → Gateway API (8001) │ │
│ │ /* → Frontend (3000) │ │
│ └────────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────┬────────────────────────────────────────┘
┌──────────────────────────────────────────────┐
┌─────────────────────────────────────────────┐ ┌─────────────────────┐
Gateway API │ │ Frontend │
│ (Port 8001) │ │ (Port 3000) │
│ │ │
│ - LangGraph-compatible runs/threads API │ │ - Next.js App │
│ - Embedded Agent Runtime │ │ - React UI │
│ - SSE Streaming │ │ - Chat Interface │
│ - Checkpointing │ │ │
- Models, MCP, Skills, Uploads, Artifacts │ │ │
- Thread Cleanup │ │ │
└─────────────────────────────────────────────┘ └─────────────────────┘
┌──────────────────────────────────────────────┐
┌─────────────────────┐ ┌─────────────────────┐ ┌─────────────────────┐
LangGraph Server │ │ Gateway API │ │ Frontend │
(Port 2024) │ │ (Port 8001) │ │ (Port 3000) │
│ │ │ │ │
│ - Agent Runtime │ │ - Models API │ │ - Next.js App │
│ - Thread Mgmt │ │ - MCP Config │ │ - React UI │
│ - SSE Streaming │ │ - Skills Mgmt │ │ - Chat Interface │
│ - Checkpointing │ │ - File Uploads │ │ │
│ │ - Thread Cleanup │ │ │
│ │ - Artifacts │ │ │
└─────────────────────┘ └─────────────────────┘ └─────────────────────┘
│ ┌─────────────────┘
│ │
▼ ▼
┌──────────────────────────────────────────────────────────────────────────┐
│ Shared Configuration │
│ ┌─────────────────────────┐ ┌────────────────────────────────────────┐ │
@@ -50,9 +52,9 @@ This document provides a comprehensive overview of the DeerFlow backend architec
## Component Details
### Gateway Embedded Agent Runtime
### LangGraph Server
The agent runtime is embedded in the FastAPI Gateway and built on LangGraph for robust multi-agent workflow orchestration. Nginx rewrites `/api/langgraph/*` to Gateway's native `/api/*` routes, so the public API remains compatible with LangGraph SDK clients without running a separate LangGraph server.
The LangGraph server is the core agent runtime, built on LangGraph for robust multi-agent workflow orchestration.
**Entry Point**: `packages/harness/deerflow/agents/lead_agent/agent.py:make_lead_agent`
@@ -63,8 +65,7 @@ The agent runtime is embedded in the FastAPI Gateway and built on LangGraph for
- Tool execution orchestration
- SSE streaming for real-time responses
**Graph registry**: `langgraph.json` remains available for tooling, Studio, or direct LangGraph Server compatibility.
It is not the default service entrypoint; scripts and Docker deployments run the Gateway embedded runtime.
**Configuration**: `langgraph.json`
```json
{
@@ -77,13 +78,12 @@ It is not the default service entrypoint; scripts and Docker deployments run the
### Gateway API
FastAPI application providing REST endpoints plus the public LangGraph-compatible `/api/langgraph/*` runtime routes.
FastAPI application providing REST endpoints for non-agent operations.
**Entry Point**: `app/gateway/app.py`
**Routers**:
- `models.py` - `/api/models` - Model listing and details
- `thread_runs.py` / `runs.py` - `/api/threads/{id}/runs`, `/api/runs/*` - LangGraph-compatible runs and streaming
- `mcp.py` - `/api/mcp` - MCP server configuration
- `skills.py` - `/api/skills` - Skills management
- `uploads.py` - `/api/threads/{id}/uploads` - File upload
@@ -91,7 +91,7 @@ FastAPI application providing REST endpoints plus the public LangGraph-compatibl
- `artifacts.py` - `/api/threads/{id}/artifacts` - Artifact serving
- `suggestions.py` - `/api/threads/{id}/suggestions` - Follow-up suggestion generation
The web conversation delete flow first deletes Gateway-managed thread state through the LangGraph-compatible route, then the Gateway `threads.py` router removes DeerFlow-managed filesystem data via `Paths.delete_thread_dir()`.
The web conversation delete flow is now split across both backend surfaces: LangGraph handles `DELETE /api/langgraph/threads/{thread_id}` for thread state, then the Gateway `threads.py` router removes DeerFlow-managed filesystem data via `Paths.delete_thread_dir()`.
### Agent Architecture
@@ -199,7 +199,7 @@ class ThreadState(AgentState):
│ Built-in Tools │ │ Configured Tools │ │ MCP Tools │
│ (packages/harness/deerflow/tools/) │ │ (config.yaml) │ │ (extensions.json) │
├─────────────────────┤ ├─────────────────────┤ ├─────────────────────┤
│ - present_files │ │ - web_search │ │ - github │
│ - present_file │ │ - web_search │ │ - github │
│ - ask_clarification │ │ - web_fetch │ │ - filesystem │
│ - view_image │ │ - bash │ │ - postgres │
│ │ │ - read_file │ │ - brave-search │
@@ -353,10 +353,10 @@ SKILL.md Format:
POST /api/langgraph/threads/{thread_id}/runs
{"input": {"messages": [{"role": "user", "content": "Hello"}]}}
2. Nginx → Gateway API (8001)
`/api/langgraph/*` is rewritten to Gateway's LangGraph-compatible `/api/*` routes
2. Nginx → LangGraph Server (2024)
Proxied to LangGraph server
3. Gateway embedded runtime
3. LangGraph Server
a. Load/create thread state
b. Execute middleware chain:
- ThreadDataMiddleware: Set up paths
@@ -412,7 +412,7 @@ SKILL.md Format:
### Thread Cleanup Flow
```
1. Client deletes conversation via the LangGraph-compatible Gateway route
1. Client deletes conversation via LangGraph
DELETE /api/langgraph/threads/{thread_id}
2. Web UI follows up with Gateway cleanup
-331
View File
@@ -1,331 +0,0 @@
# 用户认证与隔离设计
本文档描述 DeerFlow 当前内置认证模块的设计,而不是历史 RFC。它覆盖浏览器登录、API 认证、CSRF、用户隔离、首次初始化、密码重置、内部调用和升级迁移。
## 设计目标
认证模块的核心目标是把 DeerFlow 从“本地单用户工具”提升为“可多用户部署的 agent runtime”,并让用户身份贯穿 HTTP API、LangGraph-compatible runtime、文件系统、memory、自定义 agent 和反馈数据。
设计约束:
- 默认强制认证:除健康检查、文档和 auth bootstrap 端点外,HTTP 路由都必须有有效 session。
- 服务端持有所有权:客户端 metadata 不能声明 `user_id``owner_id`
- 隔离默认开启:repository(仓储)、文件路径、memory、agent 配置默认按当前用户解析。
- 旧数据可升级:无认证版本留下的 thread 可以在 admin 存在后迁移到 admin。
- 密码不进日志:首次初始化由操作者设置密码;`reset_admin` 只写 0600 凭据文件。
非目标:
- 当前 OAuth 端点只是占位,尚未实现第三方登录。
- 当前用户角色只有 `admin``user`,尚未实现细粒度 RBAC。
- 当前登录限速是进程内字典,多 worker 下不是全局精确限速。
## 核心模型
```mermaid
graph TB
classDef actor fill:#D8CFC4,stroke:#6E6259,color:#2F2A26;
classDef api fill:#C9D7D2,stroke:#5D706A,color:#21302C;
classDef state fill:#D7D3E8,stroke:#6B6680,color:#29263A;
classDef data fill:#E5D2C4,stroke:#806A5B,color:#30251E;
Browser["Browser — access_token cookie and csrf_token cookie"]:::actor
AuthMiddleware["AuthMiddleware — strict session gate"]:::api
CSRFMiddleware["CSRFMiddleware — double-submit token and Origin check"]:::api
AuthRoutes["Auth routes — initialize login register logout me change-password"]:::api
UserContext["Current user ContextVar — request-scoped identity"]:::state
Repositories["Repositories — AUTO resolves user_id from context"]:::state
Files["Filesystem — users/{user_id}/threads/{thread_id}/user-data"]:::data
Memory["Memory and agents — users/{user_id}/memory.json and agents"]:::data
Browser --> AuthMiddleware
Browser --> CSRFMiddleware
AuthMiddleware --> AuthRoutes
AuthMiddleware --> UserContext
UserContext --> Repositories
UserContext --> Files
UserContext --> Memory
```
### 用户表
用户记录定义在 `app.gateway.auth.models.User`,持久化到 `users` 表。关键字段:
| 字段 | 语义 |
|---|---|
| `id` | 用户主键,JWT `sub` 使用该值 |
| `email` | 唯一登录名 |
| `password_hash` | bcrypt hashOAuth 用户可为空 |
| `system_role` | `admin``user` |
| `needs_setup` | reset 后要求用户完成邮箱 / 密码设置 |
| `token_version` | 改密码或 reset 时递增,用于废弃旧 JWT |
### 运行时身份
认证成功后,`AuthMiddleware` 把用户同时写入:
- `request.state.user`
- `request.state.auth`
- `deerflow.runtime.user_context``ContextVar`
`ContextVar` 是这里的核心边界。上层 Gateway 负责写入身份,下层 persistence / file path 只读取结构化的当前用户,不反向依赖 `app.gateway.auth` 具体类型。
可以把 repository 调用的用户参数理解成一个三态 ADT:
```scala
enum UserScope:
case AutoFromContext
case Explicit(userId: String)
case BypassForMigration
```
对应 Python 实现是 `AUTO | str | None`
- `AUTO`:从 `ContextVar` 解析当前用户;没有上下文则抛错。
- `str`:显式指定用户,主要用于测试或管理脚本。
- `None`:跳过用户过滤,只允许迁移脚本或 admin CLI 使用。
## 登录与初始化流程
### 首次初始化
首次启动时,如果没有 admin,服务不会自动创建账号,只记录日志提示访问 `/setup`
流程:
1. 用户访问 `/setup`
2. 前端调用 `GET /api/v1/auth/setup-status`
3. 如果返回 `{"needs_setup": true}`,前端展示创建 admin 表单。
4. 表单提交 `POST /api/v1/auth/initialize`
5. 服务端确认当前没有 admin,创建 `system_role="admin"``needs_setup=false` 的用户。
6. 服务端设置 `access_token` HttpOnly cookie,用户进入 workspace。
`/api/v1/auth/initialize` 只在没有 admin 时可用。并发初始化由数据库唯一约束兜底,失败方返回 409。
### 普通登录
`POST /api/v1/auth/login/local` 使用 `OAuth2PasswordRequestForm`
- `username` 是邮箱。
- `password` 是密码。
- 成功后签发 JWT,放入 `access_token` HttpOnly cookie。
- 响应体只返回 `expires_in``needs_setup`,不返回 token。
登录失败会按客户端 IP 计数。IP 解析只在 TCP peer 属于 `AUTH_TRUSTED_PROXIES` 时信任 `X-Real-IP`,不使用 `X-Forwarded-For`
### 注册
`POST /api/v1/auth/register` 创建普通 `user`,并自动登录。
当前实现允许在没有 admin 时注册普通用户,但 `setup-status` 仍会返回 `needs_setup=true`,因为 admin 仍不存在。这是当前产品策略边界:如果后续要求“必须先初始化 admin 才能注册普通用户”,需要在 `/register` 增加 admin-exists gate。
### 改密码与 reset setup
`POST /api/v1/auth/change-password` 需要当前密码和新密码:
- 校验当前密码。
- 更新 bcrypt hash。
- `token_version += 1`,使旧 JWT 立即失效。
- 重新签发 cookie。
- 如果 `needs_setup=true` 且传了 `new_email`,则更新邮箱并清除 `needs_setup`
`python -m app.gateway.auth.reset_admin` 会:
- 找到 admin 或指定邮箱用户。
- 生成随机密码。
- 更新密码 hash。
- `token_version += 1`
- 设置 `needs_setup=true`
- 写入 `.deer-flow/admin_initial_credentials.txt`,权限 `0600`
命令行只输出凭据文件路径,不输出明文密码。
## HTTP 认证边界
`AuthMiddleware` 是 fail-closed(默认拒绝)的全局认证门。
公开路径:
- `/health`
- `/docs`
- `/redoc`
- `/openapi.json`
- `/api/v1/auth/login/local`
- `/api/v1/auth/register`
- `/api/v1/auth/logout`
- `/api/v1/auth/setup-status`
- `/api/v1/auth/initialize`
其余路径都要求有效 `access_token` cookie。存在 cookie 但 JWT 无效、过期、用户不存在或 `token_version` 不匹配时,直接返回 401,而不是让请求穿透到业务路由。
路由级别的 owner check 由 `require_permission(..., owner_check=True)` 完成:
- 读类请求允许旧的未追踪 legacy thread 兼容读取。
- 写 / 删除类请求使用 `require_existing=True`,要求 thread row 存在且属于当前用户,避免删除后缺 row 导致其他用户误通过。
## CSRF 设计
DeerFlow 使用 Double Submit Cookie
- 服务端设置 `csrf_token` cookie。
- 前端 state-changing 请求发送同值 `X-CSRF-Token` header。
- 服务端用 `secrets.compare_digest` 比较 cookie/header。
需要 CSRF 的方法:
- `POST`
- `PUT`
- `DELETE`
- `PATCH`
auth bootstrap 端点(login/register/initialize/logout)不要求 double-submit token,因为首次调用时浏览器还没有 token;但这些端点会校验 browser `Origin`,拒绝 hostile Origin,避免 login CSRF / session fixation。
## 用户隔离
### Thread metadata
Thread metadata 存在 `threads_meta`,关键隔离字段是 `user_id`
创建 thread 时:
- 客户端传入的 `metadata.user_id``metadata.owner_id` 会被剥离。
- `ThreadMetaRepository.create(..., user_id=AUTO)``ContextVar` 解析真实用户。
- `/api/threads/search` 默认只返回当前用户的 thread。
读取 / 修改 / 删除时:
- `get()` 默认按当前用户过滤。
- `check_access()` 用于路由 owner check。
- 对其他用户的 thread 返回 404,避免泄露资源存在性。
### 文件系统
当前线程文件布局:
```text
{base_dir}/users/{user_id}/threads/{thread_id}/user-data/
├── workspace/
├── uploads/
└── outputs/
```
agent 在 sandbox 内看到统一虚拟路径:
```text
/mnt/user-data/workspace
/mnt/user-data/uploads
/mnt/user-data/outputs
```
`ThreadDataMiddleware` 使用 `get_effective_user_id()` 解析当前用户并生成线程路径。没有认证上下文时会落到 `default` 用户桶,主要用于内部调用、嵌入式 client 或无 HTTP 的本地执行路径。
### Memory
默认 memory 存储:
```text
{base_dir}/users/{user_id}/memory.json
{base_dir}/users/{user_id}/agents/{agent_name}/memory.json
```
有用户上下文时,空或相对 `memory.storage_path` 都使用上述 per-user 默认路径;只有绝对 `memory.storage_path` 会视为显式 opt-out(退出) per-user isolation,所有用户共享该路径。无用户上下文的 legacy 路径仍会把相对 `storage_path` 解析到 `Paths.base_dir` 下。
### 自定义 agent
用户自定义 agent 写入:
```text
{base_dir}/users/{user_id}/agents/{agent_name}/
├── config.yaml
├── SOUL.md
└── memory.json
```
旧布局 `{base_dir}/agents/{agent_name}/` 只作为只读兼容回退。更新或删除旧共享 agent 会要求先运行迁移脚本。
## 内部调用与 IM 渠道
IM channel worker 不是浏览器用户,不持有浏览器 cookie。它们通过 Gateway 内部认证:
- 请求带 `X-DeerFlow-Internal-Token`
- 同时带匹配的 CSRF cookie/header。
- 服务端识别为内部用户,`id="default"``system_role="internal"`
这意味着 channel 产生的数据默认进入 `default` 用户桶。这个选择适合“平台级 bot 身份”,但不是“每个 IM 用户单独隔离”。如果后续要做到外部 IM 用户隔离,需要把外部 platform user 映射到 DeerFlow user,并让 channel manager 设置对应的 scoped identity。
## LangGraph-compatible 认证
Gateway 内嵌 runtime 路径由 `AuthMiddleware``CSRFMiddleware` 保护。
仓库仍保留 `app.gateway.langgraph_auth`,用于 LangGraph Server 直连模式:
- `@auth.authenticate` 校验 JWT cookie、CSRF、用户存在性和 `token_version`
- `@auth.on` 在写入 metadata 时注入 `user_id`,并在读路径返回 `{"user_id": current_user}` 过滤条件。
这保证 Gateway 路由和 LangGraph-compatible 直连模式使用同一 JWT 语义。
## 升级与迁移
从无认证版本升级时,可能存在没有 `user_id` 的历史 thread。
当前策略:
1. 首次启动如果没有 admin,只提示访问 `/setup`,不迁移。
2. 操作者创建 admin。
3. 后续启动时,`_ensure_admin_user()` 找到 admin,并把 LangGraph store 中缺少 `metadata.user_id` 的 thread 迁移到 admin。
文件系统旧布局迁移由脚本处理:
```bash
cd backend
PYTHONPATH=. python scripts/migrate_user_isolation.py --dry-run
PYTHONPATH=. python scripts/migrate_user_isolation.py --user-id <target-user-id>
```
迁移脚本覆盖 legacy `memory.json``threads/``agents/` 到 per-user layout。
## 安全不变量
必须长期保持的不变量:
- JWT 只在 HttpOnly cookie 中传输,不出现在响应 JSON。
- 任何非 public HTTP 路由都不能只靠“cookie 存在”放行,必须严格验证 JWT。
- `token_version` 不匹配必须拒绝,保证改密码 / reset 后旧 session 失效。
- 客户端 metadata 中的 `user_id` / `owner_id` 必须剥离。
- repository 默认 `AUTO` 必须从当前用户上下文解析,不能静默退化成全局查询。
- 只有迁移脚本和 admin CLI 可以显式传 `user_id=None` 绕过隔离。
- 本地文件路径必须通过 `Paths` 和 sandbox path validation 解析,不能拼接未校验的用户输入。
- 捕获认证、迁移、后台任务异常必须记录日志;不能空 catch。
## 已知边界
| 边界 | 当前行为 | 后续方向 |
|---|---|---|
| 无 admin 时注册普通用户 | 允许注册普通 `user` | 如产品要求先初始化 admin,给 `/register` 加 gate |
| 登录限速 | 进程内 dict,单 worker 精确,多 worker 近似 | Redis / DB-backed rate limiter |
| OAuth | 端点占位,未实现 | 接入 provider 并统一 `token_version` / role 语义 |
| IM 用户隔离 | channel 使用 `default` 内部用户 | 建立外部用户到 DeerFlow user 的映射 |
| 绝对 memory path | 显式共享 memory | UI / docs 明确提示 opt-out 风险 |
## 相关文件
| 文件 | 职责 |
|---|---|
| `app/gateway/auth_middleware.py` | 全局认证门、JWT 严格验证、写入 user context |
| `app/gateway/csrf_middleware.py` | CSRF double-submit 和 auth Origin 校验 |
| `app/gateway/routers/auth.py` | initialize/login/register/logout/me/change-password |
| `app/gateway/auth/jwt.py` | JWT 创建与解析 |
| `app/gateway/auth/reset_admin.py` | 密码 reset CLI |
| `app/gateway/auth/credential_file.py` | 0600 凭据文件写入 |
| `app/gateway/authz.py` | 路由权限与 owner check |
| `deerflow/runtime/user_context.py` | 当前用户 ContextVar 与 `AUTO` sentinel |
| `deerflow/persistence/thread_meta/` | thread metadata owner filter |
| `deerflow/config/paths.py` | per-user filesystem layout |
| `deerflow/agents/middlewares/thread_data_middleware.py` | run 时解析用户线程目录 |
| `deerflow/agents/memory/storage.py` | per-user memory storage |
| `deerflow/config/agents_config.py` | per-user custom agents |
| `app/channels/manager.py` | IM channel 内部认证调用 |
| `scripts/migrate_user_isolation.py` | legacy 数据迁移到 per-user layout |
| `.deer-flow/data/deerflow.db` | 统一 SQLite 数据库,包含 users / threads_meta / runs / feedback 等表 |
| `.deer-flow/users/{user_id}/agents/{agent_name}/` | 用户自定义 agent 配置、SOUL 和 agent memory |
| `.deer-flow/admin_initial_credentials.txt` | `reset_admin` 生成的新凭据文件(0600,读完应删除) |
-77
View File
@@ -1,77 +0,0 @@
# Docker Test Gap (Section 七 7.4)
This file documents the only **un-executed** test cases from
`backend/docs/AUTH_TEST_PLAN.md` after the full release validation pass.
## Why this gap exists
The release validation environment (sg_dev: `10.251.229.92`) **does not have
a Docker daemon installed**. The TC-DOCKER cases are container-runtime
behavior tests that need an actual Docker engine to spin up
`docker/docker-compose.yaml` services.
```bash
$ ssh sg_dev "which docker; docker --version"
# (empty)
# bash: docker: command not found
```
All other test plan sections were executed against either:
- The local dev box (Mac, all services running locally), or
- The deployed sg_dev instance (gateway + frontend + nginx via SSH tunnel)
## Cases not executed
| Case | Title | What it covers | Why not run |
|---|---|---|---|
| TC-DOCKER-01 | `deerflow.db` volume persistence | Verify the `DEER_FLOW_HOME` bind mount survives container restart | needs `docker compose up` |
| TC-DOCKER-02 | Session persistence across container restart | `AUTH_JWT_SECRET` env var keeps cookies valid after `docker compose down && up` | needs `docker compose down/up` |
| TC-DOCKER-03 | Per-worker rate limiter divergence | Confirms in-process `_login_attempts` dict doesn't share state across `gunicorn` workers (4 by default in the compose file); known limitation, documented | needs multi-worker container |
| TC-DOCKER-04 | IM channels use internal Gateway auth | Verify Feishu/Slack/Telegram dispatchers attach the process-local internal auth header plus CSRF cookie/header when calling Gateway-compatible LangGraph APIs | needs `docker logs` |
| TC-DOCKER-05 | Reset credentials surfacing | `reset_admin` writes a 0600 credential file in `DEER_FLOW_HOME` instead of logging plaintext. The file-based behavior is validated by non-Docker reset tests, so the only Docker-specific gap is verifying the volume mount carries the file out to the host | needs container + host volume |
| TC-DOCKER-06 | Gateway-mode Docker deploy | `./scripts/deploy.sh --gateway` produces a 3-container topology (no `langgraph` container); same auth flow as standard mode | needs `docker compose --profile gateway` |
## Coverage already provided by non-Docker tests
The **auth-relevant** behavior in each Docker case is already exercised by
the test cases that ran on sg_dev or local:
| Docker case | Auth behavior covered by |
|---|---|
| TC-DOCKER-01 (volume persistence) | TC-REENT-01 on sg_dev (admin row survives gateway restart) — same SQLite file, just no container layer between |
| TC-DOCKER-02 (session persistence) | TC-API-02/03/06 (cookie roundtrip), plus TC-REENT-04 (multi-cookie) — JWT verification is process-state-free, container restart is equivalent to `pkill uvicorn && uv run uvicorn` |
| TC-DOCKER-03 (per-worker rate limit) | TC-GW-04 + TC-REENT-09 (single-worker rate limit + 5min expiry). The cross-worker divergence is an architectural property of the in-memory dict; no auth code path differs |
| TC-DOCKER-04 (IM channels use internal auth) | Code-level: `app/channels/manager.py` creates the `langgraph_sdk` client with `create_internal_auth_headers()` plus CSRF cookie/header, so channel workers do not rely on browser cookies |
| TC-DOCKER-05 (credential surfacing) | `reset_admin` writes `.deer-flow/admin_initial_credentials.txt` with mode 0600 and logs only the path — the only Docker-unique step is whether the bind mount projects this path onto the host, which is a `docker compose` config check, not a runtime behavior change |
| TC-DOCKER-06 (gateway-mode container) | Section 七 7.2 covered by TC-GW-01..05 + Section 二 (gateway-mode auth flow on sg_dev) — same Gateway code, container is just a packaging change |
## Reproduction steps when Docker becomes available
Anyone with `docker` + `docker compose` installed can reproduce the gap by
running the test plan section verbatim. Pre-flight:
```bash
# Required on the host
docker --version # >=24.x
docker compose version # plugin >=2.x
# Required env var (otherwise sessions reset on every container restart)
echo "AUTH_JWT_SECRET=$(python3 -c 'import secrets; print(secrets.token_urlsafe(32))')" \
>> .env
# Optional: pin DEER_FLOW_HOME to a stable host path
echo "DEER_FLOW_HOME=$HOME/deer-flow-data" >> .env
```
Then run TC-DOCKER-01..06 from the test plan as written.
## Decision log
- **Not blocking the release.** The auth-relevant behavior in every Docker
case has an already-validated equivalent on bare metal. The gap is purely
about *container packaging* details (bind mounts, multi-worker, log
collection), not about whether the auth code paths work.
- **TC-DOCKER-05 was updated in place** in `AUTH_TEST_PLAN.md` to reflect
the current reset flow (`reset_admin` → 0600 credentials file, no log leak).
The old "grep 'Password:' in docker logs" expectation would have failed
silently and given a false sense of coverage.
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@@ -1,140 +0,0 @@
# Authentication Upgrade Guide
DeerFlow 内置了认证模块。本文档面向从无认证版本升级的用户。
完整设计见 [AUTH_DESIGN.md](AUTH_DESIGN.md)。
## 核心概念
认证模块采用**始终强制**策略:
- 首次启动时不会自动创建账号;首次访问 `/setup` 时由操作者创建第一个 admin 账号
- 认证从一开始就是强制的,无竞争窗口
- 已有 admin 后,服务启动时会把历史对话(升级前创建且缺少 `user_id` 的 thread)迁移到 admin 名下
- 新数据按用户隔离:thread、workspace/uploads/outputs、memory、自定义 agent 都归属当前用户
## 升级步骤
### 1. 更新代码
```bash
git pull origin main
cd backend && make install
```
### 2. 首次启动
```bash
make dev
```
如果没有 admin 账号,控制台只会提示:
```
============================================================
First boot detected — no admin account exists.
Visit /setup to complete admin account creation.
============================================================
```
首次启动不会在日志里打印随机密码,也不会写入默认 admin。这样避免启动日志泄露凭据,也避免在操作者创建账号前出现可被猜测的默认身份。
### 3. 创建 admin
访问 `http://localhost:2026/setup`,填写邮箱和密码创建第一个 admin 账号。创建成功后会自动登录并进入 workspace。
如果这是从无认证版本升级,创建 admin 后重启一次服务,让启动迁移把缺少 `user_id` 的历史 thread 归属到 admin。
### 4. 登录
后续访问 `http://localhost:2026/login`,使用已创建的邮箱和密码登录。
### 5. 添加用户(可选)
其他用户通过 `/login` 页面注册,自动获得 **user** 角色。每个用户只能看到自己的对话、上传文件、输出文件、memory 和自定义 agent。
## 安全机制
| 机制 | 说明 |
|------|------|
| JWT HttpOnly Cookie | Token 不暴露给 JavaScript,防止 XSS 窃取 |
| CSRF Double Submit Cookie | 受保护的 POST/PUT/PATCH/DELETE 请求需携带 `X-CSRF-Token`;登录/注册/初始化/登出走 auth 端点 Origin 校验 |
| bcrypt 密码哈希 | 密码不以明文存储 |
| Thread owner filter | `threads_meta.user_id` 由服务端认证上下文写入,搜索、读取、更新、删除默认按当前用户过滤 |
| 文件系统隔离 | 线程数据写入 `{base_dir}/users/{user_id}/threads/{thread_id}/user-data/`sandbox 内统一映射为 `/mnt/user-data/` |
| Memory / agent 隔离 | 用户 memory 和自定义 agent 写入 `{base_dir}/users/{user_id}/...`;旧共享 agent 只作为只读兼容回退 |
| HTTPS 自适应 | 检测 `x-forwarded-proto`,自动设置 `Secure` cookie 标志 |
## 常见操作
### 忘记密码
```bash
cd backend
# 重置 admin 密码
python -m app.gateway.auth.reset_admin
# 重置指定用户密码
python -m app.gateway.auth.reset_admin --email user@example.com
```
会把新的随机密码写入 `.deer-flow/admin_initial_credentials.txt`,文件权限为 `0600`。命令行只输出文件路径,不输出明文密码。
### 完全重置
删除统一 SQLite 数据库,重启后重新访问 `/setup` 创建新 admin
```bash
rm -f backend/.deer-flow/data/deerflow.db
# 重启服务后访问 http://localhost:2026/setup
```
## 数据存储
| 文件 | 内容 |
|------|------|
| `.deer-flow/data/deerflow.db` | 统一 SQLite 数据库(users、threads_meta、runs、feedback 等应用数据) |
| `.deer-flow/users/{user_id}/threads/{thread_id}/user-data/` | 用户线程的 workspace、uploads、outputs |
| `.deer-flow/users/{user_id}/memory.json` | 用户级 memory |
| `.deer-flow/users/{user_id}/agents/{agent_name}/` | 用户自定义 agent 配置、SOUL 和 agent memory |
| `.deer-flow/admin_initial_credentials.txt` | `reset_admin` 生成的新凭据文件(0600,读完应删除) |
| `.env` 中的 `AUTH_JWT_SECRET` | JWT 签名密钥(未设置时自动生成并持久化到 `.deer-flow/.jwt_secret`,重启后 session 保持) |
### 生产环境建议
```bash
# 生成持久化 JWT 密钥,避免重启后所有用户需重新登录
python -c "import secrets; print(secrets.token_urlsafe(32))"
# 将输出添加到 .env
# AUTH_JWT_SECRET=<生成的密钥>
```
## API 端点
| 端点 | 方法 | 说明 |
|------|------|------|
| `/api/v1/auth/login/local` | POST | 邮箱密码登录(OAuth2 form |
| `/api/v1/auth/register` | POST | 注册新用户(user 角色) |
| `/api/v1/auth/logout` | POST | 登出(清除 cookie |
| `/api/v1/auth/me` | GET | 获取当前用户信息 |
| `/api/v1/auth/change-password` | POST | 修改密码 |
| `/api/v1/auth/setup-status` | GET | 检查 admin 是否存在 |
| `/api/v1/auth/initialize` | POST | 首次初始化第一个 admin(仅无 admin 时可调用) |
## 兼容性
- **标准模式**`make dev`):完全兼容;无 admin 时访问 `/setup` 初始化
- **Gateway 模式**`make dev-pro`):完全兼容
- **Docker 部署**:完全兼容,`.deer-flow/data/deerflow.db` 需持久化卷挂载
- **IM 渠道**Feishu/Slack/Telegram):通过 Gateway 内部认证通信,使用 `default` 用户桶
- **DeerFlowClient**(嵌入式):不经过 HTTP,不受认证影响
## 故障排查
| 症状 | 原因 | 解决 |
|------|------|------|
| 启动后没看到密码 | 当前实现不在启动日志输出密码 | 首次安装访问 `/setup`;忘记密码用 `reset_admin` |
| `/login` 自动跳到 `/setup` | 系统还没有 admin | 在 `/setup` 创建第一个 admin |
| 登录后 POST 返回 403 | CSRF token 缺失 | 确认前端已更新 |
| 重启后需要重新登录 | `.jwt_secret` 文件被删除且 `.env` 未设置 `AUTH_JWT_SECRET` | 在 `.env` 中设置固定密钥 |
+6 -13
View File
@@ -259,8 +259,6 @@ sandbox:
When you configure `sandbox.mounts`, DeerFlow exposes those `container_path` values in the agent prompt so the agent can discover and operate on mounted directories directly instead of assuming everything must live under `/mnt/user-data`.
For bare-metal Docker sandbox runs that use localhost, DeerFlow binds the sandbox HTTP port to `127.0.0.1` by default so it is not exposed on every host interface. Docker-outside-of-Docker deployments that connect through `host.docker.internal` keep the broad legacy bind for compatibility. Set `DEER_FLOW_SANDBOX_BIND_HOST` explicitly if your deployment needs a different bind address.
### Skills
Configure the skills directory for specialized workflows:
@@ -321,16 +319,11 @@ models:
- `DEEPSEEK_API_KEY` - DeepSeek API key
- `NOVITA_API_KEY` - Novita API key (OpenAI-compatible endpoint)
- `TAVILY_API_KEY` - Tavily search API key
- `DEER_FLOW_PROJECT_ROOT` - Project root for relative runtime paths
- `DEER_FLOW_CONFIG_PATH` - Custom config file path
- `DEER_FLOW_EXTENSIONS_CONFIG_PATH` - Custom extensions config file path
- `DEER_FLOW_HOME` - Runtime state directory (defaults to `.deer-flow` under the project root)
- `DEER_FLOW_SKILLS_PATH` - Skills directory when `skills.path` is omitted
- `GATEWAY_ENABLE_DOCS` - Set to `false` to disable Swagger UI (`/docs`), ReDoc (`/redoc`), and OpenAPI schema (`/openapi.json`) endpoints (default: `true`)
## Configuration Location
The configuration file should be placed in the **project root directory** (`deer-flow/config.yaml`). Set `DEER_FLOW_PROJECT_ROOT` when the process may start from another working directory, or set `DEER_FLOW_CONFIG_PATH` to point at a specific file.
The configuration file should be placed in the **project root directory** (`deer-flow/config.yaml`), not in the backend directory.
## Configuration Priority
@@ -338,12 +331,12 @@ DeerFlow searches for configuration in this order:
1. Path specified in code via `config_path` argument
2. Path from `DEER_FLOW_CONFIG_PATH` environment variable
3. `config.yaml` under `DEER_FLOW_PROJECT_ROOT`, or under the current working directory when `DEER_FLOW_PROJECT_ROOT` is unset
4. Legacy backend/repository-root locations for monorepo compatibility
3. `config.yaml` in current working directory (typically `backend/` when running)
4. `config.yaml` in parent directory (project root: `deer-flow/`)
## Best Practices
1. **Place `config.yaml` in project root** - Set `DEER_FLOW_PROJECT_ROOT` if the runtime starts elsewhere
1. **Place `config.yaml` in project root** - Not in `backend/` directory
2. **Never commit `config.yaml`** - It's already in `.gitignore`
3. **Use environment variables for secrets** - Don't hardcode API keys
4. **Keep `config.example.yaml` updated** - Document all new options
@@ -354,7 +347,7 @@ DeerFlow searches for configuration in this order:
### "Config file not found"
- Ensure `config.yaml` exists in the **project root** directory (`deer-flow/config.yaml`)
- If the runtime starts outside the project root, set `DEER_FLOW_PROJECT_ROOT`
- The backend searches parent directory by default, so root location is preferred
- Alternatively, set `DEER_FLOW_CONFIG_PATH` environment variable to custom location
### "Invalid API key"
@@ -364,7 +357,7 @@ DeerFlow searches for configuration in this order:
### "Skills not loading"
- Check that `deer-flow/skills/` directory exists
- Verify skills have valid `SKILL.md` files
- Check `skills.path` or `DEER_FLOW_SKILLS_PATH` if using a custom path
- Check `skills.path` configuration if using custom path
### "Docker sandbox fails to start"
- Ensure Docker is running
+5 -26
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@@ -2,12 +2,12 @@
## 概述
DeerFlow 后端提供了完整的文件上传功能,支持多文件上传,并可选地将 Office 文档和 PDF 转换为 Markdown 格式。
DeerFlow 后端提供了完整的文件上传功能,支持多文件上传,并自动将 Office 文档和 PDF 转换为 Markdown 格式。
## 功能特性
- ✅ 支持多文件同时上传
-可选地转换文档为 MarkdownPDF、PPT、Excel、Word
-自动转换文档为 MarkdownPDF、PPT、Excel、Word
- ✅ 文件存储在线程隔离的目录中
- ✅ Agent 自动感知已上传的文件
- ✅ 支持文件列表查询和删除
@@ -22,8 +22,6 @@ POST /api/threads/{thread_id}/uploads
**请求体:** `multipart/form-data`
- `files`: 一个或多个文件
网关会在应用层限制上传规模,默认最多 10 个文件、单文件 50 MiB、单次请求总计 100 MiB。可通过 `config.yaml``uploads.max_files``uploads.max_file_size``uploads.max_total_size` 调整;前端会读取同一组限制并在选择文件时提示,超过限制时后端返回 `413 Payload Too Large`
**响应:**
```json
{
@@ -50,23 +48,7 @@ POST /api/threads/{thread_id}/uploads
- `virtual_path`: Agent 在沙箱中使用的虚拟路径
- `artifact_url`: 前端通过 HTTP 访问文件的 URL
### 2. 查询上传限制
```
GET /api/threads/{thread_id}/uploads/limits
```
返回网关当前生效的上传限制,供前端在用户选择文件前提示和拦截。
**响应:**
```json
{
"max_files": 10,
"max_file_size": 52428800,
"max_total_size": 104857600
}
```
### 3. 列出已上传文件
### 2. 列出已上传文件
```
GET /api/threads/{thread_id}/uploads/list
```
@@ -89,7 +71,7 @@ GET /api/threads/{thread_id}/uploads/list
}
```
### 4. 删除文件
### 3. 删除文件
```
DELETE /api/threads/{thread_id}/uploads/{filename}
```
@@ -104,7 +86,7 @@ DELETE /api/threads/{thread_id}/uploads/{filename}
## 支持的文档格式
以下格式在显式启用 `uploads.auto_convert_documents: true`会自动转换为 Markdown
以下格式会自动转换为 Markdown:
- PDF (`.pdf`)
- PowerPoint (`.ppt`, `.pptx`)
- Excel (`.xls`, `.xlsx`)
@@ -112,8 +94,6 @@ DELETE /api/threads/{thread_id}/uploads/{filename}
转换后的 Markdown 文件会保存在同一目录下,文件名为原文件名 + `.md` 扩展名。
默认情况下,自动转换是关闭的,以避免在网关主机上对不受信任的 Office/PDF 上传执行解析。只有在受信任部署中明确接受此风险时,才应将 `uploads.auto_convert_documents` 设置为 `true`
## Agent 集成
### 自动文件列举
@@ -227,7 +207,6 @@ backend/.deer-flow/threads/
- 最大文件大小:100MB(可在 nginx.conf 中配置 `client_max_body_size`
- 文件名安全性:系统会自动验证文件路径,防止目录遍历攻击
- 线程隔离:每个线程的上传文件相互隔离,无法跨线程访问
- 自动文档转换默认关闭;如需启用,需在 `config.yaml` 中显式设置 `uploads.auto_convert_documents: true`
## 技术实现
+1 -1
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@@ -296,7 +296,7 @@ These are the tool names your provider will see in `request.tool_name`:
| `web_search` | Web search query |
| `web_fetch` | Fetch URL content |
| `image_search` | Image search |
| `present_files` | Present file to user |
| `present_file` | Present file to user |
| `view_image` | Display image |
| `ask_clarification` | Ask user a question |
| `task` | Delegate to subagent |
+343
View File
@@ -0,0 +1,343 @@
# DeerFlow 后端拆分设计文档:Harness + App
> 状态:Draft
> 作者:DeerFlow Team
> 日期:2026-03-13
## 1. 背景与动机
DeerFlow 后端当前是一个单一 Python 包(`src.*`),包含了从底层 agent 编排到上层用户产品的所有代码。随着项目发展,这种结构带来了几个问题:
- **复用困难**:其他产品(CLI 工具、Slack bot、第三方集成)想用 agent 能力,必须依赖整个后端,包括 FastAPI、IM SDK 等不需要的依赖
- **职责模糊**:agent 编排逻辑和用户产品逻辑混在同一个 `src/` 下,边界不清晰
- **依赖膨胀**LangGraph Server 运行时不需要 FastAPI/uvicorn/Slack SDK,但当前必须安装全部依赖
本文档提出将后端拆分为两部分:**deerflow-harness**(可发布的 agent 框架包)和 **app**(不打包的用户产品代码)。
## 2. 核心概念
### 2.1 Harness(线束/框架层)
Harness 是 agent 的构建与编排框架,回答 **"如何构建和运行 agent"** 的问题:
- Agent 工厂与生命周期管理
- Middleware pipeline
- 工具系统(内置工具 + MCP + 社区工具)
- 沙箱执行环境
- 子 agent 委派
- 记忆系统
- 技能加载与注入
- 模型工厂
- 配置系统
**Harness 是一个可发布的 Python 包**`deerflow-harness`),可以独立安装和使用。
**Harness 的设计原则**:对上层应用完全无感知。它不知道也不关心谁在调用它——可以是 Web App、CLI、Slack Bot、或者一个单元测试。
### 2.2 App(应用层)
App 是面向用户的产品代码,回答 **"如何将 agent 呈现给用户"** 的问题:
- Gateway APIFastAPI REST 接口)
- IM Channels(飞书、Slack、Telegram 集成)
- Custom Agent 的 CRUD 管理
- 文件上传/下载的 HTTP 接口
**App 不打包、不发布**,它是 DeerFlow 项目内部的应用代码,直接运行。
**App 依赖 Harness,但 Harness 不依赖 App。**
### 2.3 边界划分
| 模块 | 归属 | 说明 |
|------|------|------|
| `config/` | Harness | 配置系统是基础设施 |
| `reflection/` | Harness | 动态模块加载工具 |
| `utils/` | Harness | 通用工具函数 |
| `agents/` | Harness | Agent 工厂、middleware、state、memory |
| `subagents/` | Harness | 子 agent 委派系统 |
| `sandbox/` | Harness | 沙箱执行环境 |
| `tools/` | Harness | 工具注册与发现 |
| `mcp/` | Harness | MCP 协议集成 |
| `skills/` | Harness | 技能加载、解析、定义 schema |
| `models/` | Harness | LLM 模型工厂 |
| `community/` | Harness | 社区工具(tavily、jina 等) |
| `client.py` | Harness | 嵌入式 Python 客户端 |
| `gateway/` | App | FastAPI REST API |
| `channels/` | App | IM 平台集成 |
**关于 Custom Agents**agent 定义格式(`config.yaml` + `SOUL.md` schema)由 Harness 层的 `config/agents_config.py` 定义,但文件的存储、CRUD、发现机制由 App 层的 `gateway/routers/agents.py` 负责。
## 3. 目标架构
### 3.1 目录结构
```
backend/
├── packages/
│ └── harness/
│ ├── pyproject.toml # deerflow-harness 包定义
│ └── deerflow/ # Python 包根(import 前缀: deerflow.*
│ ├── __init__.py
│ ├── config/
│ ├── reflection/
│ ├── utils/
│ ├── agents/
│ │ ├── lead_agent/
│ │ ├── middlewares/
│ │ ├── memory/
│ │ ├── checkpointer/
│ │ └── thread_state.py
│ ├── subagents/
│ ├── sandbox/
│ ├── tools/
│ ├── mcp/
│ ├── skills/
│ ├── models/
│ ├── community/
│ └── client.py
├── app/ # 不打包(import 前缀: app.*
│ ├── __init__.py
│ ├── gateway/
│ │ ├── __init__.py
│ │ ├── app.py
│ │ ├── config.py
│ │ ├── path_utils.py
│ │ └── routers/
│ └── channels/
│ ├── __init__.py
│ ├── base.py
│ ├── manager.py
│ ├── service.py
│ ├── store.py
│ ├── message_bus.py
│ ├── feishu.py
│ ├── slack.py
│ └── telegram.py
├── pyproject.toml # uv workspace root
├── langgraph.json
├── tests/
├── docs/
└── Makefile
```
### 3.2 Import 规则
两个层使用不同的 import 前缀,职责边界一目了然:
```python
# ---------------------------------------------------------------
# Harness 内部互相引用(deerflow.* 前缀)
# ---------------------------------------------------------------
from deerflow.agents import make_lead_agent
from deerflow.models import create_chat_model
from deerflow.config import get_app_config
from deerflow.tools import get_available_tools
# ---------------------------------------------------------------
# App 内部互相引用(app.* 前缀)
# ---------------------------------------------------------------
from app.gateway.app import app
from app.gateway.routers.uploads import upload_files
from app.channels.service import start_channel_service
# ---------------------------------------------------------------
# App 调用 Harness(单向依赖,Harness 永远不 import app
# ---------------------------------------------------------------
from deerflow.agents import make_lead_agent
from deerflow.models import create_chat_model
from deerflow.skills import load_skills
from deerflow.config.extensions_config import get_extensions_config
```
**App 调用 Harness 示例 — Gateway 中启动 agent**
```python
# app/gateway/routers/chat.py
from deerflow.agents.lead_agent.agent import make_lead_agent
from deerflow.models import create_chat_model
from deerflow.config import get_app_config
async def create_chat_session(thread_id: str, model_name: str):
config = get_app_config()
model = create_chat_model(name=model_name)
agent = make_lead_agent(config=...)
# ... 使用 agent 处理用户消息
```
**App 调用 Harness 示例 — Channel 中查询 skills**
```python
# app/channels/manager.py
from deerflow.skills import load_skills
from deerflow.agents.memory.updater import get_memory_data
def handle_status_command():
skills = load_skills(enabled_only=True)
memory = get_memory_data()
return f"Skills: {len(skills)}, Memory facts: {len(memory.get('facts', []))}"
```
**禁止方向**Harness 代码中绝不能出现 `from app.``import app.`
### 3.3 为什么 App 不打包
| 方面 | 打包(放 packages/ 下) | 不打包(放 backend/app/ |
|------|------------------------|--------------------------|
| 命名空间 | 需要 pkgutil `extend_path` 合并,或独立前缀 | 天然独立,`app.*` vs `deerflow.*` |
| 发布需求 | 没有——App 是项目内部代码 | 不需要 pyproject.toml |
| 复杂度 | 需要管理两个包的构建、版本、依赖声明 | 直接运行,零额外配置 |
| 运行方式 | `pip install deerflow-app` | `PYTHONPATH=. uvicorn app.gateway.app:app` |
App 的唯一消费者是 DeerFlow 项目自身,没有独立发布的需求。放在 `backend/app/` 下作为普通 Python 包,通过 `PYTHONPATH` 或 editable install 让 Python 找到即可。
### 3.4 依赖关系
```
┌─────────────────────────────────────┐
│ app/ (不打包,直接运行) │
│ ├── fastapi, uvicorn │
│ ├── slack-sdk, lark-oapi, ... │
│ └── import deerflow.* │
└──────────────┬──────────────────────┘
┌─────────────────────────────────────┐
│ deerflow-harness (可发布的包) │
│ ├── langgraph, langchain │
│ ├── markitdown, pydantic, ... │
│ └── 零 app 依赖 │
└─────────────────────────────────────┘
```
**依赖分类**
| 分类 | 依赖包 |
|------|--------|
| Harness only | agent-sandbox, langchain*, langgraph*, markdownify, markitdown, pydantic, pyyaml, readabilipy, tavily-python, firecrawl-py, tiktoken, ddgs, duckdb, httpx, kubernetes, dotenv |
| App only | fastapi, uvicorn, sse-starlette, python-multipart, lark-oapi, slack-sdk, python-telegram-bot, markdown-to-mrkdwn |
| Shared | langgraph-sdkchannels 用 HTTP client, pydantic, httpx |
### 3.5 Workspace 配置
`backend/pyproject.toml`workspace root):
```toml
[project]
name = "deer-flow"
version = "0.1.0"
requires-python = ">=3.12"
dependencies = ["deerflow-harness"]
[dependency-groups]
dev = ["pytest>=8.0.0", "ruff>=0.14.11"]
# App 的额外依赖(fastapi 等)也声明在 workspace root,因为 app 不打包
app = ["fastapi", "uvicorn", "sse-starlette", "python-multipart"]
channels = ["lark-oapi", "slack-sdk", "python-telegram-bot"]
[tool.uv.workspace]
members = ["packages/harness"]
[tool.uv.sources]
deerflow-harness = { workspace = true }
```
## 4. 当前的跨层依赖问题
在拆分之前,需要先解决 `client.py` 中两处从 harness 到 app 的反向依赖:
### 4.1 `_validate_skill_frontmatter`
```python
# client.py — harness 导入了 app 层代码
from src.gateway.routers.skills import _validate_skill_frontmatter
```
**解决方案**:将该函数提取到 `deerflow/skills/validation.py`。这是一个纯逻辑函数(解析 YAML frontmatter、校验字段),与 FastAPI 无关。
### 4.2 `CONVERTIBLE_EXTENSIONS` + `convert_file_to_markdown`
```python
# client.py — harness 导入了 app 层代码
from src.gateway.routers.uploads import CONVERTIBLE_EXTENSIONS, convert_file_to_markdown
```
**解决方案**:将它们提取到 `deerflow/utils/file_conversion.py`。仅依赖 `markitdown` + `pathlib`,是通用工具函数。
## 5. 基础设施变更
### 5.1 LangGraph Server
LangGraph Server 只需要 harness 包。`langgraph.json` 更新:
```json
{
"dependencies": ["./packages/harness"],
"graphs": {
"lead_agent": "deerflow.agents:make_lead_agent"
},
"checkpointer": {
"path": "./packages/harness/deerflow/agents/checkpointer/async_provider.py:make_checkpointer"
}
}
```
### 5.2 Gateway API
```bash
# serve.sh / Makefile
# PYTHONPATH 包含 backend/ 根目录,使 app.* 和 deerflow.* 都能被找到
PYTHONPATH=. uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001
```
### 5.3 Nginx
无需变更(只做 URL 路由,不涉及 Python 模块路径)。
### 5.4 Docker
Dockerfile 中的 module 引用从 `src.` 改为 `deerflow.` / `app.``COPY` 命令需覆盖 `packages/``app/` 目录。
## 6. 实施计划
分 3 个 PR 递进执行:
### PR 1:提取共享工具函数(Low Risk)
1. 创建 `src/skills/validation.py`,从 `gateway/routers/skills.py` 提取 `_validate_skill_frontmatter`
2. 创建 `src/utils/file_conversion.py`,从 `gateway/routers/uploads.py` 提取文件转换逻辑
3. 更新 `client.py``gateway/routers/skills.py``gateway/routers/uploads.py` 的 import
4. 运行全部测试确认无回归
### PR 2Rename + 物理拆分(High Risk,原子操作)
1. 创建 `packages/harness/` 目录,创建 `pyproject.toml`
2. `git mv` 将 harness 相关模块从 `src/` 移入 `packages/harness/deerflow/`
3. `git mv` 将 app 相关模块从 `src/` 移入 `app/`
4. 全局替换 import
- harness 模块:`src.*``deerflow.*`(所有 `.py` 文件、`langgraph.json`、测试、文档)
- app 模块:`src.gateway.*``app.gateway.*``src.channels.*``app.channels.*`
5. 更新 workspace root `pyproject.toml`
6. 更新 `langgraph.json``Makefile``Dockerfile`
7. `uv sync` + 全部测试 + 手动验证服务启动
### PR 3:边界检查 + 文档(Low Risk
1. 添加 lint 规则:检查 harness 不 import app 模块
2. 更新 `CLAUDE.md``README.md`
## 7. 风险与缓解
| 风险 | 影响 | 缓解措施 |
|------|------|----------|
| 全局 rename 误伤 | 字符串中的 `src` 被错误替换 | 正则精确匹配 `\bsrc\.`review diff |
| LangGraph Server 找不到模块 | 服务启动失败 | `langgraph.json``dependencies` 指向正确的 harness 包路径 |
| App 的 `PYTHONPATH` 缺失 | Gateway/Channel 启动 import 报错 | Makefile/Docker 统一设置 `PYTHONPATH=.` |
| `config.yaml` 中的 `use` 字段引用旧路径 | 运行时模块解析失败 | `config.yaml` 中的 `use` 字段同步更新为 `deerflow.*` |
| 测试中 `sys.path` 混乱 | 测试失败 | 用 editable install`uv sync`)确保 deerflow 可导入,`conftest.py` 中添加 `app/``sys.path` |
## 8. 未来演进
- **独立发布**harness 可以发布到内部 PyPI,让其他项目直接 `pip install deerflow-harness`
- **插件化 App**:不同的 appweb、CLI、bot)可以各自独立,都依赖同一个 harness
- **更细粒度拆分**:如果 harness 内部模块继续增长,可以进一步拆分(如 `deerflow-sandbox``deerflow-mcp`
-35
View File
@@ -45,41 +45,6 @@ Example:
}
```
## Custom Tool Interceptors
You can register custom interceptors that run before every MCP tool call. This is useful for injecting per-request headers (e.g., user auth tokens from the LangGraph execution context), logging, or metrics.
Declare interceptors in `extensions_config.json` using the `mcpInterceptors` field:
```json
{
"mcpInterceptors": [
"my_package.mcp.auth:build_auth_interceptor"
],
"mcpServers": { ... }
}
```
Each entry is a Python import path in `module:variable` format (resolved via `resolve_variable`). The variable must be a **no-arg builder function** that returns an async interceptor compatible with `MultiServerMCPClient`s `tool_interceptors` interface, or `None` to skip.
Example interceptor that injects auth headers from LangGraph metadata:
```python
def build_auth_interceptor():
async def interceptor(request, handler):
from langgraph.config import get_config
metadata = get_config().get("metadata", {})
headers = dict(request.headers or {})
if token := metadata.get("auth_token"):
headers["X-Auth-Token"] = token
return await handler(request.override(headers=headers))
return interceptor
```
- A single string value is accepted and normalized to a one-element list.
- Invalid paths or builder failures are logged as warnings without blocking other interceptors.
- The builder return value must be `callable`; non-callable values are skipped with a warning.
## How It Works
MCP servers expose tools that are automatically discovered and integrated into DeerFlows agent system at runtime. Once enabled, these tools become available to agents without additional code changes.
-2
View File
@@ -8,7 +8,6 @@ This directory contains detailed documentation for the DeerFlow backend.
|----------|-------------|
| [ARCHITECTURE.md](ARCHITECTURE.md) | System architecture overview |
| [API.md](API.md) | Complete API reference |
| [AUTH_DESIGN.md](AUTH_DESIGN.md) | User authentication, CSRF, and per-user isolation design |
| [CONFIGURATION.md](CONFIGURATION.md) | Configuration options |
| [SETUP.md](SETUP.md) | Quick setup guide |
@@ -43,7 +42,6 @@ docs/
├── README.md # This file
├── ARCHITECTURE.md # System architecture
├── API.md # API reference
├── AUTH_DESIGN.md # User authentication and isolation design
├── CONFIGURATION.md # Configuration guide
├── SETUP.md # Setup instructions
├── FILE_UPLOAD.md # File upload feature
+8 -14
View File
@@ -23,9 +23,6 @@ DeerFlow uses a YAML configuration file that should be placed in the **project r
# Option A: Set environment variables (recommended)
export OPENAI_API_KEY="your-key-here"
# Optional: pin the project root when running from another directory
export DEER_FLOW_PROJECT_ROOT="/path/to/deer-flow"
# Option B: Edit config.yaml directly
vim config.yaml # or your preferred editor
```
@@ -38,20 +35,17 @@ DeerFlow uses a YAML configuration file that should be placed in the **project r
## Important Notes
- **Location**: `config.yaml` should be in `deer-flow/` (project root)
- **Location**: `config.yaml` should be in `deer-flow/` (project root), not `deer-flow/backend/`
- **Git**: `config.yaml` is automatically ignored by git (contains secrets)
- **Runtime root**: Set `DEER_FLOW_PROJECT_ROOT` if DeerFlow may start from outside the project root
- **Runtime data**: State defaults to `.deer-flow` under the project root; set `DEER_FLOW_HOME` to move it
- **Skills**: Skills default to `skills/` under the project root; set `DEER_FLOW_SKILLS_PATH` or `skills.path` to move them
- **Priority**: If both `backend/config.yaml` and `../config.yaml` exist, backend version takes precedence
## Configuration File Locations
The backend searches for `config.yaml` in this order:
1. Explicit `config_path` argument from code
2. `DEER_FLOW_CONFIG_PATH` environment variable (if set)
3. `config.yaml` under `DEER_FLOW_PROJECT_ROOT`, or the current working directory when `DEER_FLOW_PROJECT_ROOT` is unset
4. Legacy backend/repository-root locations for monorepo compatibility
1. `DEER_FLOW_CONFIG_PATH` environment variable (if set)
2. `backend/config.yaml` (current directory when running from backend/)
3. `deer-flow/config.yaml` (parent directory - **recommended location**)
**Recommended**: Place `config.yaml` in project root (`deer-flow/config.yaml`).
@@ -83,8 +77,8 @@ python -c "from deerflow.config.app_config import AppConfig; print(AppConfig.res
If it can't find the config:
1. Ensure you've copied `config.example.yaml` to `config.yaml`
2. Verify you're in the project root, or set `DEER_FLOW_PROJECT_ROOT`
3. Check the file exists: `ls -la config.yaml`
2. Verify you're in the correct directory
3. Check the file exists: `ls -la ../config.yaml`
### Permission denied
@@ -95,4 +89,4 @@ chmod 600 ../config.yaml # Protect sensitive configuration
## See Also
- [Configuration Guide](CONFIGURATION.md) - Detailed configuration options
- [Architecture Overview](../CLAUDE.md) - System architecture
- [Architecture Overview](../CLAUDE.md) - System architecture
@@ -124,7 +124,7 @@ title:
# checkpointer.py
from langgraph.checkpoint.sqlite import SqliteSaver
checkpointer = SqliteSaver.from_conn_string("deerflow.db")
checkpointer = SqliteSaver.from_conn_string("checkpoints.db")
```
```json
+3 -3
View File
@@ -11,7 +11,6 @@
- [x] Add Plan Mode with TodoList middleware
- [x] Add vision model support with ViewImageMiddleware
- [x] Skills system with SKILL.md format
- [x] Replace `time.sleep(5)` with `asyncio.sleep()` in `packages/harness/deerflow/tools/builtins/task_tool.py` (subagent polling)
## Planned Features
@@ -22,9 +21,10 @@
- [ ] Support for more document formats in upload
- [ ] Skill marketplace / remote skill installation
- [ ] Optimize async concurrency in agent hot path (IM channels multi-task scenario)
- [ ] Replace `subprocess.run()` with `asyncio.create_subprocess_shell()` in `packages/harness/deerflow/sandbox/local/local_sandbox.py`
- Replace `time.sleep(5)` with `asyncio.sleep()` in `packages/harness/deerflow/tools/builtins/task_tool.py` (subagent polling)
- Replace `subprocess.run()` with `asyncio.create_subprocess_shell()` in `packages/harness/deerflow/sandbox/local/local_sandbox.py`
- Replace sync `requests` with `httpx.AsyncClient` in community tools (tavily, jina_ai, firecrawl, infoquest, image_search)
- [x] Replace sync `model.invoke()` with async `model.ainvoke()` in title_middleware and memory updater
- Replace sync `model.invoke()` with async `model.ainvoke()` in title_middleware and memory updater
- Consider `asyncio.to_thread()` wrapper for remaining blocking file I/O
- For production: use `langgraph up` (multi-worker) instead of `langgraph dev` (single-worker)
-28
View File
@@ -41,13 +41,6 @@ summarization:
# Custom summary prompt (optional)
summary_prompt: null
# Tool names treated as skill file reads for skill rescue
skill_file_read_tool_names:
- read_file
- read
- view
- cat
```
### Configuration Options
@@ -132,26 +125,6 @@ keep:
- **Default**: `null` (uses LangChain's default prompt)
- **Description**: Custom prompt template for generating summaries. The prompt should guide the model to extract the most important context.
#### `preserve_recent_skill_count`
- **Type**: Integer (≥ 0)
- **Default**: `5`
- **Description**: Number of most-recently-loaded skill files (tool results whose tool name is in `skill_file_read_tool_names` and whose target path is under `skills.container_path`, e.g. `/mnt/skills/...`) that are rescued from summarization. Prevents the agent from losing skill instructions after compression. Set to `0` to disable skill rescue entirely.
#### `preserve_recent_skill_tokens`
- **Type**: Integer (≥ 0)
- **Default**: `25000`
- **Description**: Total token budget reserved for rescued skill reads. Once this budget is exhausted, older skill bundles are allowed to be summarized.
#### `preserve_recent_skill_tokens_per_skill`
- **Type**: Integer (≥ 0)
- **Default**: `5000`
- **Description**: Per-skill token cap. Any individual skill read whose tool result exceeds this size is not rescued (it falls through to the summarizer like ordinary content).
#### `skill_file_read_tool_names`
- **Type**: List of strings
- **Default**: `["read_file", "read", "view", "cat"]`
- **Description**: Tool names treated as skill file reads during summarization rescue. A tool call is only eligible for skill rescue when its name appears in this list and its target path is under `skills.container_path`.
**Default Prompt Behavior:**
The default LangChain prompt instructs the model to:
- Extract highest quality/most relevant context
@@ -174,7 +147,6 @@ The default LangChain prompt instructs the model to:
- A single summary message is added
- Recent messages are preserved
6. **AI/Tool Pair Protection**: The system ensures AI messages and their corresponding tool messages stay together
7. **Skill Rescue**: Before the summary is generated, the most recently loaded skill files (tool results whose tool name is in `skill_file_read_tool_names` and whose target path is under `skills.container_path`) are lifted out of the summarization set and prepended to the preserved tail. Selection walks newest-first under three budgets: `preserve_recent_skill_count`, `preserve_recent_skill_tokens`, and `preserve_recent_skill_tokens_per_skill`. The triggering AIMessage and all of its paired ToolMessages move together so tool_call ↔ tool_result pairing stays intact.
### Token Counting
+1 -4
View File
@@ -8,10 +8,7 @@
"graphs": {
"lead_agent": "deerflow.agents:make_lead_agent"
},
"auth": {
"path": "./app/gateway/langgraph_auth.py:auth"
},
"checkpointer": {
"path": "./packages/harness/deerflow/runtime/checkpointer/async_provider.py:make_checkpointer"
"path": "./packages/harness/deerflow/agents/checkpointer/async_provider.py:make_checkpointer"
}
}
@@ -1,3 +1,4 @@
from .checkpointer import get_checkpointer, make_checkpointer, reset_checkpointer
from .factory import create_deerflow_agent
from .features import Next, Prev, RuntimeFeatures
from .lead_agent import make_lead_agent
@@ -17,4 +18,7 @@ __all__ = [
"make_lead_agent",
"SandboxState",
"ThreadState",
"get_checkpointer",
"reset_checkpointer",
"make_checkpointer",
]
@@ -7,12 +7,12 @@ Supported backends: memory, sqlite, postgres.
Usage (e.g. FastAPI lifespan)::
from deerflow.runtime.checkpointer.async_provider import make_checkpointer
from deerflow.agents.checkpointer.async_provider import make_checkpointer
async with make_checkpointer() as checkpointer:
app.state.checkpointer = checkpointer # InMemorySaver if not configured
For sync usage see :mod:`deerflow.runtime.checkpointer.provider`.
For sync usage see :mod:`deerflow.agents.checkpointer.provider`.
"""
from __future__ import annotations
@@ -24,12 +24,12 @@ from collections.abc import AsyncIterator
from langgraph.types import Checkpointer
from deerflow.config.app_config import AppConfig, get_app_config
from deerflow.runtime.checkpointer.provider import (
from deerflow.agents.checkpointer.provider import (
POSTGRES_CONN_REQUIRED,
POSTGRES_INSTALL,
SQLITE_INSTALL,
)
from deerflow.config.app_config import get_app_config
from deerflow.runtime.store._sqlite_utils import ensure_sqlite_parent_dir, resolve_sqlite_conn_str
logger = logging.getLogger(__name__)
@@ -84,77 +84,23 @@ async def _async_checkpointer(config) -> AsyncIterator[Checkpointer]:
@contextlib.asynccontextmanager
async def _async_checkpointer_from_database(db_config) -> AsyncIterator[Checkpointer]:
"""Async context manager that constructs a checkpointer from unified DatabaseConfig."""
if db_config.backend == "memory":
async def make_checkpointer() -> AsyncIterator[Checkpointer]:
"""Async context manager that yields a checkpointer for the caller's lifetime.
Resources are opened on enter and closed on exit no global state::
async with make_checkpointer() as checkpointer:
app.state.checkpointer = checkpointer
Yields an ``InMemorySaver`` when no checkpointer is configured in *config.yaml*.
"""
config = get_app_config()
if config.checkpointer is None:
from langgraph.checkpoint.memory import InMemorySaver
yield InMemorySaver()
return
if db_config.backend == "sqlite":
try:
from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
except ImportError as exc:
raise ImportError(SQLITE_INSTALL) from exc
conn_str = db_config.checkpointer_sqlite_path
ensure_sqlite_parent_dir(conn_str)
async with AsyncSqliteSaver.from_conn_string(conn_str) as saver:
await saver.setup()
yield saver
return
if db_config.backend == "postgres":
try:
from langgraph.checkpoint.postgres.aio import AsyncPostgresSaver
except ImportError as exc:
raise ImportError(POSTGRES_INSTALL) from exc
if not db_config.postgres_url:
raise ValueError("database.postgres_url is required for the postgres backend")
async with AsyncPostgresSaver.from_conn_string(db_config.postgres_url) as saver:
await saver.setup()
yield saver
return
raise ValueError(f"Unknown database backend: {db_config.backend!r}")
@contextlib.asynccontextmanager
async def make_checkpointer(app_config: AppConfig | None = None) -> AsyncIterator[Checkpointer]:
"""Async context manager that yields a checkpointer for the caller's lifetime.
Resources are opened on enter and closed on exit -- no global state::
async with make_checkpointer(app_config) as checkpointer:
app.state.checkpointer = checkpointer
Yields an ``InMemorySaver`` when no checkpointer is configured in *config.yaml*.
Priority:
1. Legacy ``checkpointer:`` config section (backward compatible)
2. Unified ``database:`` config section
3. Default InMemorySaver
"""
if app_config is None:
app_config = get_app_config()
# Legacy: standalone checkpointer config takes precedence
if app_config.checkpointer is not None:
async with _async_checkpointer(app_config.checkpointer) as saver:
yield saver
return
# Unified database config
db_config = getattr(app_config, "database", None)
if db_config is not None and db_config.backend != "memory":
async with _async_checkpointer_from_database(db_config) as saver:
yield saver
return
# Default: in-memory
from langgraph.checkpoint.memory import InMemorySaver
yield InMemorySaver()
async with _async_checkpointer(config.checkpointer) as saver:
yield saver
@@ -7,7 +7,7 @@ Supported backends: memory, sqlite, postgres.
Usage::
from deerflow.runtime.checkpointer.provider import get_checkpointer, checkpointer_context
from deerflow.agents.checkpointer.provider import get_checkpointer, checkpointer_context
# Singleton — reused across calls, closed on process exit
cp = get_checkpointer()
@@ -27,7 +27,7 @@ from langgraph.types import Checkpointer
from deerflow.config.app_config import get_app_config
from deerflow.config.checkpointer_config import CheckpointerConfig
from deerflow.runtime.store._sqlite_utils import ensure_sqlite_parent_dir, resolve_sqlite_conn_str
from deerflow.runtime.store._sqlite_utils import resolve_sqlite_conn_str
logger = logging.getLogger(__name__)
@@ -36,9 +36,7 @@ logger = logging.getLogger(__name__)
# ---------------------------------------------------------------------------
SQLITE_INSTALL = "langgraph-checkpoint-sqlite is required for the SQLite checkpointer. Install it with: uv add langgraph-checkpoint-sqlite"
POSTGRES_INSTALL = (
"langgraph-checkpoint-postgres is required for the PostgreSQL checkpointer. Install the package extra with: pip install 'deerflow-harness[postgres]' (or use: uv sync --all-packages --extra postgres when developing locally)"
)
POSTGRES_INSTALL = "langgraph-checkpoint-postgres is required for the PostgreSQL checkpointer. Install it with: uv add langgraph-checkpoint-postgres psycopg[binary] psycopg-pool"
POSTGRES_CONN_REQUIRED = "checkpointer.connection_string is required for the postgres backend"
# ---------------------------------------------------------------------------
@@ -69,7 +67,6 @@ def _sync_checkpointer_cm(config: CheckpointerConfig) -> Iterator[Checkpointer]:
raise ImportError(SQLITE_INSTALL) from exc
conn_str = resolve_sqlite_conn_str(config.connection_string or "store.db")
ensure_sqlite_parent_dir(conn_str)
with SqliteSaver.from_conn_string(conn_str) as saver:
saver.setup()
logger.info("Checkpointer: using SqliteSaver (%s)", conn_str)
@@ -173,7 +173,7 @@ def _assemble_from_features(
9. MemoryMiddleware (memory feature)
10. ViewImageMiddleware (vision feature)
11. SubagentLimitMiddleware (subagent feature)
12. LoopDetectionMiddleware (loop_detection feature)
12. LoopDetectionMiddleware (always)
13. ClarificationMiddleware (always last)
Two-phase ordering:
@@ -254,11 +254,9 @@ def _assemble_from_features(
from deerflow.agents.middlewares.view_image_middleware import ViewImageMiddleware
chain.append(ViewImageMiddleware())
from deerflow.tools.builtins import view_image_tool
if feat.sandbox is not False:
from deerflow.tools.builtins import view_image_tool
extra_tools.append(view_image_tool)
extra_tools.append(view_image_tool)
# --- [11] Subagent ---
if feat.subagent is not False:
@@ -272,15 +270,10 @@ def _assemble_from_features(
extra_tools.append(task_tool)
# --- [12] LoopDetection ---
if feat.loop_detection is not False:
if isinstance(feat.loop_detection, AgentMiddleware):
chain.append(feat.loop_detection)
else:
from deerflow.agents.middlewares.loop_detection_middleware import LoopDetectionMiddleware
from deerflow.config.loop_detection_config import LoopDetectionConfig
# --- [12] LoopDetection (always) ---
from deerflow.agents.middlewares.loop_detection_middleware import LoopDetectionMiddleware
chain.append(LoopDetectionMiddleware.from_config(LoopDetectionConfig()))
chain.append(LoopDetectionMiddleware())
# --- [13] Clarification (always last among built-ins) ---
chain.append(ClarificationMiddleware())
@@ -31,7 +31,6 @@ class RuntimeFeatures:
vision: bool | AgentMiddleware = False
auto_title: bool | AgentMiddleware = False
guardrail: Literal[False] | AgentMiddleware = False
loop_detection: bool | AgentMiddleware = True
# ---------------------------------------------------------------------------
@@ -1,43 +1,31 @@
import logging
from langchain.agents import create_agent
from langchain.agents.middleware import AgentMiddleware
from langchain.agents.middleware import AgentMiddleware, SummarizationMiddleware
from langchain_core.runnables import RunnableConfig
from deerflow.agents.lead_agent.prompt import apply_prompt_template
from deerflow.agents.memory.summarization_hook import memory_flush_hook
from deerflow.agents.middlewares.clarification_middleware import ClarificationMiddleware
from deerflow.agents.middlewares.loop_detection_middleware import LoopDetectionMiddleware
from deerflow.agents.middlewares.memory_middleware import MemoryMiddleware
from deerflow.agents.middlewares.subagent_limit_middleware import SubagentLimitMiddleware
from deerflow.agents.middlewares.summarization_middleware import BeforeSummarizationHook, DeerFlowSummarizationMiddleware
from deerflow.agents.middlewares.title_middleware import TitleMiddleware
from deerflow.agents.middlewares.todo_middleware import TodoMiddleware
from deerflow.agents.middlewares.token_usage_middleware import TokenUsageMiddleware
from deerflow.agents.middlewares.tool_error_handling_middleware import build_lead_runtime_middlewares
from deerflow.agents.middlewares.view_image_middleware import ViewImageMiddleware
from deerflow.agents.thread_state import ThreadState
from deerflow.config.agents_config import load_agent_config, validate_agent_name
from deerflow.config.app_config import AppConfig, get_app_config
from deerflow.config.agents_config import load_agent_config
from deerflow.config.app_config import get_app_config
from deerflow.config.summarization_config import get_summarization_config
from deerflow.models import create_chat_model
from deerflow.skills.tool_policy import filter_tools_by_skill_allowed_tools
from deerflow.skills.types import Skill
logger = logging.getLogger(__name__)
def _get_runtime_config(config: RunnableConfig) -> dict:
"""Merge legacy configurable options with LangGraph runtime context."""
cfg = dict(config.get("configurable", {}) or {})
context = config.get("context", {}) or {}
if isinstance(context, dict):
cfg.update(context)
return cfg
def _resolve_model_name(requested_model_name: str | None = None, *, app_config: AppConfig | None = None) -> str:
def _resolve_model_name(requested_model_name: str | None = None) -> str:
"""Resolve a runtime model name safely, falling back to default if invalid. Returns None if no models are configured."""
app_config = app_config or get_app_config()
app_config = get_app_config()
default_model_name = app_config.models[0].name if app_config.models else None
if default_model_name is None:
raise ValueError("No chat models are configured. Please configure at least one model in config.yaml.")
@@ -50,10 +38,9 @@ def _resolve_model_name(requested_model_name: str | None = None, *, app_config:
return default_model_name
def _create_summarization_middleware(*, app_config: AppConfig | None = None) -> DeerFlowSummarizationMiddleware | None:
def _create_summarization_middleware() -> SummarizationMiddleware | None:
"""Create and configure the summarization middleware from config."""
resolved_app_config = app_config or get_app_config()
config = resolved_app_config.summarization
config = get_summarization_config()
if not config.enabled:
return None
@@ -69,15 +56,13 @@ def _create_summarization_middleware(*, app_config: AppConfig | None = None) ->
# Prepare keep parameter
keep = config.keep.to_tuple()
# Prepare model parameter.
# Bind "middleware:summarize" tag so RunJournal identifies these LLM calls
# as middleware rather than lead_agent (SummarizationMiddleware is a
# LangChain built-in, so we tag the model at creation time).
# Prepare model parameter
if config.model_name:
model = create_chat_model(name=config.model_name, thinking_enabled=False, app_config=resolved_app_config)
model = create_chat_model(name=config.model_name, thinking_enabled=False)
else:
model = create_chat_model(thinking_enabled=False, app_config=resolved_app_config)
model = model.with_config(tags=["middleware:summarize"])
# Use a lightweight model for summarization to save costs
# Falls back to default model if not explicitly specified
model = create_chat_model(thinking_enabled=False)
# Prepare kwargs
kwargs = {
@@ -92,24 +77,7 @@ def _create_summarization_middleware(*, app_config: AppConfig | None = None) ->
if config.summary_prompt is not None:
kwargs["summary_prompt"] = config.summary_prompt
hooks: list[BeforeSummarizationHook] = []
if resolved_app_config.memory.enabled:
hooks.append(memory_flush_hook)
# The logic below relies on two assumptions holding true: this factory is
# the sole entry point for DeerFlowSummarizationMiddleware, and the runtime
# config is not expected to change after startup.
skills_container_path = resolved_app_config.skills.container_path or "/mnt/skills"
return DeerFlowSummarizationMiddleware(
**kwargs,
skills_container_path=skills_container_path,
skill_file_read_tool_names=config.skill_file_read_tool_names,
before_summarization=hooks,
preserve_recent_skill_count=config.preserve_recent_skill_count,
preserve_recent_skill_tokens=config.preserve_recent_skill_tokens,
preserve_recent_skill_tokens_per_skill=config.preserve_recent_skill_tokens_per_skill,
)
return SummarizationMiddleware(**kwargs)
def _create_todo_list_middleware(is_plan_mode: bool) -> TodoMiddleware | None:
@@ -237,14 +205,7 @@ Being proactive with task management demonstrates thoroughness and ensures all r
# ViewImageMiddleware should be before ClarificationMiddleware to inject image details before LLM
# ToolErrorHandlingMiddleware should be before ClarificationMiddleware to convert tool exceptions to ToolMessages
# ClarificationMiddleware should be last to intercept clarification requests after model calls
def _build_middlewares(
config: RunnableConfig,
model_name: str | None,
agent_name: str | None = None,
custom_middlewares: list[AgentMiddleware] | None = None,
*,
app_config: AppConfig | None = None,
):
def _build_middlewares(config: RunnableConfig, model_name: str | None, agent_name: str | None = None, custom_middlewares: list[AgentMiddleware] | None = None):
"""Build middleware chain based on runtime configuration.
Args:
@@ -255,59 +216,50 @@ def _build_middlewares(
Returns:
List of middleware instances.
"""
resolved_app_config = app_config or get_app_config()
middlewares = build_lead_runtime_middlewares(app_config=resolved_app_config, lazy_init=True)
# Always inject current date (and optionally memory) as <system-reminder> into the
# first HumanMessage to keep the system prompt fully static for prefix-cache reuse.
from deerflow.agents.middlewares.dynamic_context_middleware import DynamicContextMiddleware
middlewares.append(DynamicContextMiddleware(agent_name=agent_name, app_config=resolved_app_config))
middlewares = build_lead_runtime_middlewares(lazy_init=True)
# Add summarization middleware if enabled
summarization_middleware = _create_summarization_middleware(app_config=resolved_app_config)
summarization_middleware = _create_summarization_middleware()
if summarization_middleware is not None:
middlewares.append(summarization_middleware)
# Add TodoList middleware if plan mode is enabled
cfg = _get_runtime_config(config)
is_plan_mode = cfg.get("is_plan_mode", False)
is_plan_mode = config.get("configurable", {}).get("is_plan_mode", False)
todo_list_middleware = _create_todo_list_middleware(is_plan_mode)
if todo_list_middleware is not None:
middlewares.append(todo_list_middleware)
# Add TokenUsageMiddleware when token_usage tracking is enabled
if resolved_app_config.token_usage.enabled:
if get_app_config().token_usage.enabled:
middlewares.append(TokenUsageMiddleware())
# Add TitleMiddleware
middlewares.append(TitleMiddleware(app_config=resolved_app_config))
middlewares.append(TitleMiddleware())
# Add MemoryMiddleware (after TitleMiddleware)
middlewares.append(MemoryMiddleware(agent_name=agent_name, memory_config=resolved_app_config.memory))
middlewares.append(MemoryMiddleware(agent_name=agent_name))
# Add ViewImageMiddleware only if the current model supports vision.
# Use the resolved runtime model_name from make_lead_agent to avoid stale config values.
model_config = resolved_app_config.get_model_config(model_name) if model_name else None
app_config = get_app_config()
model_config = app_config.get_model_config(model_name) if model_name else None
if model_config is not None and model_config.supports_vision:
middlewares.append(ViewImageMiddleware())
# Add DeferredToolFilterMiddleware to hide deferred tool schemas from model binding
if resolved_app_config.tool_search.enabled:
if app_config.tool_search.enabled:
from deerflow.agents.middlewares.deferred_tool_filter_middleware import DeferredToolFilterMiddleware
middlewares.append(DeferredToolFilterMiddleware())
# Add SubagentLimitMiddleware to truncate excess parallel task calls
subagent_enabled = cfg.get("subagent_enabled", False)
subagent_enabled = config.get("configurable", {}).get("subagent_enabled", False)
if subagent_enabled:
max_concurrent_subagents = cfg.get("max_concurrent_subagents", 3)
max_concurrent_subagents = config.get("configurable", {}).get("max_concurrent_subagents", 3)
middlewares.append(SubagentLimitMiddleware(max_concurrent=max_concurrent_subagents))
# LoopDetectionMiddleware — detect and break repetitive tool call loops
loop_detection_config = resolved_app_config.loop_detection
if loop_detection_config.enabled:
middlewares.append(LoopDetectionMiddleware.from_config(loop_detection_config))
middlewares.append(LoopDetectionMiddleware())
# Inject custom middlewares before ClarificationMiddleware
if custom_middlewares:
@@ -318,42 +270,12 @@ def _build_middlewares(
return middlewares
def _available_skill_names(agent_config, is_bootstrap: bool) -> set[str] | None:
if is_bootstrap:
return {"bootstrap"}
if agent_config and agent_config.skills is not None:
return set(agent_config.skills)
return None
def _load_enabled_skills_for_tool_policy(available_skills: set[str] | None, *, app_config: AppConfig) -> list[Skill]:
try:
from deerflow.agents.lead_agent.prompt import get_enabled_skills_for_config
skills = get_enabled_skills_for_config(app_config)
except Exception:
logger.exception("Failed to load skills for allowed-tools policy")
raise
if available_skills is None:
return skills
return [skill for skill in skills if skill.name in available_skills]
def make_lead_agent(config: RunnableConfig):
"""LangGraph graph factory; keep the signature compatible with LangGraph Server."""
runtime_config = _get_runtime_config(config)
runtime_app_config = runtime_config.get("app_config")
return _make_lead_agent(config, app_config=runtime_app_config or get_app_config())
def _make_lead_agent(config: RunnableConfig, *, app_config: AppConfig):
# Lazy import to avoid circular dependency
from deerflow.tools import get_available_tools
from deerflow.tools.builtins import setup_agent, update_agent
from deerflow.tools.builtins import setup_agent
cfg = _get_runtime_config(config)
resolved_app_config = app_config
cfg = config.get("configurable", {})
thinking_enabled = cfg.get("thinking_enabled", True)
reasoning_effort = cfg.get("reasoning_effort", None)
@@ -362,17 +284,17 @@ def _make_lead_agent(config: RunnableConfig, *, app_config: AppConfig):
subagent_enabled = cfg.get("subagent_enabled", False)
max_concurrent_subagents = cfg.get("max_concurrent_subagents", 3)
is_bootstrap = cfg.get("is_bootstrap", False)
agent_name = validate_agent_name(cfg.get("agent_name"))
agent_name = cfg.get("agent_name")
agent_config = load_agent_config(agent_name) if not is_bootstrap else None
available_skills = _available_skill_names(agent_config, is_bootstrap)
# Custom agent model from agent config (if any), or None to let _resolve_model_name pick the default
agent_model_name = agent_config.model if agent_config and agent_config.model else None
# Final model name resolution: request → agent config → global default, with fallback for unknown names
model_name = _resolve_model_name(requested_model_name or agent_model_name, app_config=resolved_app_config)
model_name = _resolve_model_name(requested_model_name or agent_model_name)
model_config = resolved_app_config.get_model_config(model_name)
app_config = get_app_config()
model_config = app_config.get_model_config(model_name)
if model_config is None:
raise ValueError("No chat model could be resolved. Please configure at least one model in config.yaml or provide a valid 'model_name'/'model' in the request.")
@@ -403,44 +325,26 @@ def _make_lead_agent(config: RunnableConfig, *, app_config: AppConfig):
"reasoning_effort": reasoning_effort,
"is_plan_mode": is_plan_mode,
"subagent_enabled": subagent_enabled,
"tool_groups": agent_config.tool_groups if agent_config else None,
"available_skills": sorted(available_skills) if available_skills is not None else None,
}
)
skills_for_tool_policy = _load_enabled_skills_for_tool_policy(available_skills, app_config=resolved_app_config)
if is_bootstrap:
# Special bootstrap agent with minimal prompt for initial custom agent creation flow
tools = get_available_tools(model_name=model_name, subagent_enabled=subagent_enabled, app_config=resolved_app_config) + [setup_agent]
return create_agent(
model=create_chat_model(name=model_name, thinking_enabled=thinking_enabled, app_config=resolved_app_config),
tools=filter_tools_by_skill_allowed_tools(tools, skills_for_tool_policy),
middleware=_build_middlewares(config, model_name=model_name, app_config=resolved_app_config),
system_prompt=apply_prompt_template(
subagent_enabled=subagent_enabled,
max_concurrent_subagents=max_concurrent_subagents,
available_skills=set(["bootstrap"]),
app_config=resolved_app_config,
),
model=create_chat_model(name=model_name, thinking_enabled=thinking_enabled),
tools=get_available_tools(model_name=model_name, subagent_enabled=subagent_enabled) + [setup_agent],
middleware=_build_middlewares(config, model_name=model_name),
system_prompt=apply_prompt_template(subagent_enabled=subagent_enabled, max_concurrent_subagents=max_concurrent_subagents, available_skills=set(["bootstrap"])),
state_schema=ThreadState,
)
# Custom agents can update their own SOUL.md / config via update_agent.
# The default agent (no agent_name) does not see this tool.
extra_tools = [update_agent] if agent_name else []
# Default lead agent (unchanged behavior)
tools = get_available_tools(model_name=model_name, groups=agent_config.tool_groups if agent_config else None, subagent_enabled=subagent_enabled, app_config=resolved_app_config)
return create_agent(
model=create_chat_model(name=model_name, thinking_enabled=thinking_enabled, reasoning_effort=reasoning_effort, app_config=resolved_app_config),
tools=filter_tools_by_skill_allowed_tools(tools + extra_tools, skills_for_tool_policy),
middleware=_build_middlewares(config, model_name=model_name, agent_name=agent_name, app_config=resolved_app_config),
model=create_chat_model(name=model_name, thinking_enabled=thinking_enabled, reasoning_effort=reasoning_effort),
tools=get_available_tools(model_name=model_name, groups=agent_config.tool_groups if agent_config else None, subagent_enabled=subagent_enabled),
middleware=_build_middlewares(config, model_name=model_name, agent_name=agent_name),
system_prompt=apply_prompt_template(
subagent_enabled=subagent_enabled,
max_concurrent_subagents=max_concurrent_subagents,
agent_name=agent_name,
available_skills=set(agent_config.skills) if agent_config and agent_config.skills is not None else None,
app_config=resolved_app_config,
subagent_enabled=subagent_enabled, max_concurrent_subagents=max_concurrent_subagents, agent_name=agent_name, available_skills=set(agent_config.skills) if agent_config and agent_config.skills is not None else None
),
state_schema=ThreadState,
)
@@ -1,32 +1,26 @@
from __future__ import annotations
import asyncio
import logging
import threading
from datetime import datetime
from functools import lru_cache
from typing import TYPE_CHECKING
from deerflow.config.agents_config import load_agent_soul
from deerflow.skills.storage import get_or_new_skill_storage
from deerflow.skills.types import Skill, SkillCategory
from deerflow.skills import load_skills
from deerflow.skills.types import Skill
from deerflow.subagents import get_available_subagent_names
if TYPE_CHECKING:
from deerflow.config.app_config import AppConfig
logger = logging.getLogger(__name__)
_ENABLED_SKILLS_REFRESH_WAIT_TIMEOUT_SECONDS = 5.0
_enabled_skills_lock = threading.Lock()
_enabled_skills_cache: list[Skill] | None = None
_enabled_skills_by_config_cache: dict[int, tuple[object, list[Skill]]] = {}
_enabled_skills_refresh_active = False
_enabled_skills_refresh_version = 0
_enabled_skills_refresh_event = threading.Event()
def _load_enabled_skills_sync() -> list[Skill]:
return list(get_or_new_skill_storage().load_skills(enabled_only=True))
return list(load_skills(enabled_only=True))
def _start_enabled_skills_refresh_thread() -> None:
@@ -84,7 +78,6 @@ def _invalidate_enabled_skills_cache() -> threading.Event:
_get_cached_skills_prompt_section.cache_clear()
with _enabled_skills_lock:
_enabled_skills_cache = None
_enabled_skills_by_config_cache.clear()
_enabled_skills_refresh_version += 1
_enabled_skills_refresh_event.clear()
if _enabled_skills_refresh_active:
@@ -108,15 +101,6 @@ def warm_enabled_skills_cache(timeout_seconds: float = _ENABLED_SKILLS_REFRESH_W
def _get_enabled_skills():
return get_cached_enabled_skills()
def get_cached_enabled_skills() -> list[Skill]:
"""Return the cached enabled-skills list, kicking off a background refresh on miss.
Safe to call from request paths: never blocks on disk I/O. Returns an empty
list on cache miss; the next call will see the warmed result.
"""
with _enabled_skills_lock:
cached = _enabled_skills_cache
@@ -127,33 +111,8 @@ def get_cached_enabled_skills() -> list[Skill]:
return []
def get_enabled_skills_for_config(app_config: AppConfig | None = None) -> list[Skill]:
"""Return enabled skills using the caller's config source.
When a concrete ``app_config`` is supplied, cache the loaded skills by that
config object's identity so request-scoped config injection still resolves
skill paths from the matching config without rescanning storage on every
agent factory call.
"""
if app_config is None:
return _get_enabled_skills()
cache_key = id(app_config)
with _enabled_skills_lock:
cached = _enabled_skills_by_config_cache.get(cache_key)
if cached is not None:
cached_config, cached_skills = cached
if cached_config is app_config:
return list(cached_skills)
skills = list(get_or_new_skill_storage(app_config=app_config).load_skills(enabled_only=True))
with _enabled_skills_lock:
_enabled_skills_by_config_cache[cache_key] = (app_config, skills)
return list(skills)
def _skill_mutability_label(category: SkillCategory | str) -> str:
return "[custom, editable]" if category == SkillCategory.CUSTOM else "[built-in]"
def _skill_mutability_label(category: str) -> str:
return "[custom, editable]" if category == "custom" else "[built-in]"
def clear_skills_system_prompt_cache() -> None:
@@ -164,6 +123,31 @@ async def refresh_skills_system_prompt_cache_async() -> None:
await asyncio.to_thread(_invalidate_enabled_skills_cache().wait)
def _reset_skills_system_prompt_cache_state() -> None:
global _enabled_skills_cache, _enabled_skills_refresh_active, _enabled_skills_refresh_version
_get_cached_skills_prompt_section.cache_clear()
with _enabled_skills_lock:
_enabled_skills_cache = None
_enabled_skills_refresh_active = False
_enabled_skills_refresh_version = 0
_enabled_skills_refresh_event.clear()
def _refresh_enabled_skills_cache() -> None:
"""Backward-compatible test helper for direct synchronous reload."""
try:
skills = _load_enabled_skills_sync()
except Exception:
logger.exception("Failed to load enabled skills for prompt injection")
skills = []
with _enabled_skills_lock:
_enabled_skills_cache = skills
_enabled_skills_refresh_active = False
_enabled_skills_refresh_event.set()
def _build_skill_evolution_section(skill_evolution_enabled: bool) -> str:
if not skill_evolution_enabled:
return ""
@@ -180,37 +164,7 @@ Skip simple one-off tasks.
"""
def _build_available_subagents_description(available_names: list[str], bash_available: bool, *, app_config: AppConfig | None = None) -> str:
"""Dynamically build subagent type descriptions from registry.
Mirrors Codex's pattern where agent_type_description is dynamically generated
from all registered roles, so the LLM knows about every available type.
"""
# Built-in descriptions (kept for backward compatibility with existing prompt quality)
builtin_descriptions = {
"general-purpose": "For ANY non-trivial task - web research, code exploration, file operations, analysis, etc.",
"bash": (
"For command execution (git, build, test, deploy operations)" if bash_available else "Not available in the current sandbox configuration. Use direct file/web tools or switch to AioSandboxProvider for isolated shell access."
),
}
# Lazy import moved outside loop to avoid repeated import overhead
from deerflow.subagents.registry import get_subagent_config
lines = []
for name in available_names:
if name in builtin_descriptions:
lines.append(f"- **{name}**: {builtin_descriptions[name]}")
else:
config = get_subagent_config(name, app_config=app_config)
if config is not None:
desc = config.description.split("\n")[0].strip() # First line only for brevity
lines.append(f"- **{name}**: {desc}")
return "\n".join(lines)
def _build_subagent_section(max_concurrent: int, *, app_config: AppConfig | None = None) -> str:
def _build_subagent_section(max_concurrent: int) -> str:
"""Build the subagent system prompt section with dynamic concurrency limit.
Args:
@@ -220,12 +174,13 @@ def _build_subagent_section(max_concurrent: int, *, app_config: AppConfig | None
Formatted subagent section string.
"""
n = max_concurrent
available_names = get_available_subagent_names(app_config=app_config) if app_config is not None else get_available_subagent_names()
bash_available = "bash" in available_names
# Dynamically build subagent type descriptions from registry (aligned with Codex's
# agent_type_description pattern where all registered roles are listed in the tool spec).
available_subagents = _build_available_subagents_description(available_names, bash_available, app_config=app_config)
bash_available = "bash" in get_available_subagent_names()
available_subagents = (
"- **general-purpose**: For ANY non-trivial task - web research, code exploration, file operations, analysis, etc.\n- **bash**: For command execution (git, build, test, deploy operations)"
if bash_available
else "- **general-purpose**: For ANY non-trivial task - web research, code exploration, file operations, analysis, etc.\n"
"- **bash**: Not available in the current sandbox configuration. Use direct file/web tools or switch to AioSandboxProvider for isolated shell access."
)
direct_tool_examples = "bash, ls, read_file, web_search, etc." if bash_available else "ls, read_file, web_search, etc."
direct_execution_example = (
'# User asks: "Run the tests"\n# Thinking: Cannot decompose into parallel sub-tasks\n# → Execute directly\n\nbash("npm test") # Direct execution, not task()'
@@ -366,7 +321,8 @@ You are {agent_name}, an open-source super agent.
</role>
{soul}
{self_update_section}
{memory_context}
<thinking_style>
- Think concisely and strategically about the user's request BEFORE taking action
- Break down the task: What is clear? What is ambiguous? What is missing?
@@ -464,7 +420,7 @@ You: "Deploying to staging..." [proceed]
- Treat `/mnt/user-data/workspace` as your default current working directory for coding and file-editing tasks
- When writing scripts or commands that create/read files from the workspace, prefer relative paths such as `hello.txt`, `../uploads/data.csv`, and `../outputs/report.md`
- Avoid hardcoding `/mnt/user-data/...` inside generated scripts when a relative path from the workspace is enough
- Final deliverables must be copied to `/mnt/user-data/outputs` and presented using `present_files` tool
- Final deliverables must be copied to `/mnt/user-data/outputs` and presented using `present_file` tool
{acp_section}
</working_directory>
@@ -551,32 +507,24 @@ combined with a FastAPI gateway for REST API access [citation:FastAPI](https://f
"""
def _get_memory_context(agent_name: str | None = None, *, app_config: AppConfig | None = None) -> str:
def _get_memory_context(agent_name: str | None = None) -> str:
"""Get memory context for injection into system prompt.
Args:
agent_name: If provided, loads per-agent memory. If None, loads global memory.
app_config: Explicit application config. When provided, memory options
are read from this value instead of the global config singleton.
Returns:
Formatted memory context string wrapped in XML tags, or empty string if disabled.
"""
try:
from deerflow.agents.memory import format_memory_for_injection, get_memory_data
from deerflow.runtime.user_context import get_effective_user_id
if app_config is None:
from deerflow.config.memory_config import get_memory_config
config = get_memory_config()
else:
config = app_config.memory
from deerflow.config.memory_config import get_memory_config
config = get_memory_config()
if not config.enabled or not config.injection_enabled:
return ""
memory_data = get_memory_data(agent_name, user_id=get_effective_user_id())
memory_data = get_memory_data(agent_name)
memory_content = format_memory_for_injection(memory_data, max_tokens=config.max_injection_tokens)
if not memory_content.strip():
@@ -586,8 +534,8 @@ def _get_memory_context(agent_name: str | None = None, *, app_config: AppConfig
{memory_content}
</memory>
"""
except Exception:
logger.exception("Failed to load memory context")
except Exception as e:
logger.error("Failed to load memory context: %s", e)
return ""
@@ -623,24 +571,19 @@ You have access to skills that provide optimized workflows for specific tasks. E
</skill_system>"""
def get_skills_prompt_section(available_skills: set[str] | None = None, *, app_config: AppConfig | None = None) -> str:
def get_skills_prompt_section(available_skills: set[str] | None = None) -> str:
"""Generate the skills prompt section with available skills list."""
skills = get_enabled_skills_for_config(app_config)
skills = _get_enabled_skills()
if app_config is None:
try:
from deerflow.config import get_app_config
try:
from deerflow.config import get_app_config
config = get_app_config()
container_base_path = config.skills.container_path
skill_evolution_enabled = config.skill_evolution.enabled
except Exception:
container_base_path = "/mnt/skills"
skill_evolution_enabled = False
else:
config = app_config
config = get_app_config()
container_base_path = config.skills.container_path
skill_evolution_enabled = config.skill_evolution.enabled
except Exception:
container_base_path = "/mnt/skills"
skill_evolution_enabled = False
if not skills and not skill_evolution_enabled:
return ""
@@ -664,27 +607,7 @@ def get_agent_soul(agent_name: str | None) -> str:
return ""
def _build_self_update_section(agent_name: str | None) -> str:
"""Prompt block that teaches the custom agent to persist self-updates via update_agent."""
if not agent_name:
return ""
return f"""<self_update>
You are running as the custom agent **{agent_name}** with a persisted SOUL.md and config.yaml.
When the user asks you to update your own description, personality, behaviour, skill set, tool groups, or default model,
you MUST persist the change with the `update_agent` tool. Do NOT use `bash`, `write_file`, or any sandbox tool to edit
SOUL.md or config.yaml — those write into a temporary sandbox/tool workspace and the changes will be lost on the next turn.
Rules:
- Always pass the FULL replacement text for `soul` (no patch semantics). Start from your current SOUL above and apply the user's edits.
- Only pass the fields that should change. Omit the others to preserve them.
- Pass `skills=[]` to disable all skills, or omit `skills` to keep the existing whitelist.
- After `update_agent` returns successfully, tell the user the change is persisted and will take effect on the next turn.
</self_update>
"""
def get_deferred_tools_prompt_section(*, app_config: AppConfig | None = None) -> str:
def get_deferred_tools_prompt_section() -> str:
"""Generate <available-deferred-tools> block for the system prompt.
Lists only deferred tool names so the agent knows what exists
@@ -693,17 +616,12 @@ def get_deferred_tools_prompt_section(*, app_config: AppConfig | None = None) ->
"""
from deerflow.tools.builtins.tool_search import get_deferred_registry
if app_config is None:
try:
from deerflow.config import get_app_config
try:
from deerflow.config import get_app_config
config = get_app_config()
except Exception:
if not get_app_config().tool_search.enabled:
return ""
else:
config = app_config
if not config.tool_search.enabled:
except Exception:
return ""
registry = get_deferred_registry()
@@ -714,19 +632,15 @@ def get_deferred_tools_prompt_section(*, app_config: AppConfig | None = None) ->
return f"<available-deferred-tools>\n{names}\n</available-deferred-tools>"
def _build_acp_section(*, app_config: AppConfig | None = None) -> str:
def _build_acp_section() -> str:
"""Build the ACP agent prompt section, only if ACP agents are configured."""
if app_config is None:
try:
from deerflow.config.acp_config import get_acp_agents
try:
from deerflow.config.acp_config import get_acp_agents
agents = get_acp_agents()
except Exception:
agents = get_acp_agents()
if not agents:
return ""
else:
agents = getattr(app_config, "acp_agents", {}) or {}
if not agents:
except Exception:
return ""
return (
@@ -734,24 +648,19 @@ def _build_acp_section(*, app_config: AppConfig | None = None) -> str:
"- ACP agents (e.g. codex, claude_code) run in their own independent workspace — NOT in `/mnt/user-data/`\n"
"- When writing prompts for ACP agents, describe the task only — do NOT reference `/mnt/user-data` paths\n"
"- ACP agent results are accessible at `/mnt/acp-workspace/` (read-only) — use `ls`, `read_file`, or `bash cp` to retrieve output files\n"
"- To deliver ACP output to the user: copy from `/mnt/acp-workspace/<file>` to `/mnt/user-data/outputs/<file>`, then use `present_files`"
"- To deliver ACP output to the user: copy from `/mnt/acp-workspace/<file>` to `/mnt/user-data/outputs/<file>`, then use `present_file`"
)
def _build_custom_mounts_section(*, app_config: AppConfig | None = None) -> str:
def _build_custom_mounts_section() -> str:
"""Build a prompt section for explicitly configured sandbox mounts."""
if app_config is None:
try:
from deerflow.config import get_app_config
try:
from deerflow.config import get_app_config
config = get_app_config()
except Exception:
logger.exception("Failed to load configured sandbox mounts for the lead-agent prompt")
return ""
else:
config = app_config
mounts = config.sandbox.mounts or []
mounts = get_app_config().sandbox.mounts or []
except Exception:
logger.exception("Failed to load configured sandbox mounts for the lead-agent prompt")
return ""
if not mounts:
return ""
@@ -765,17 +674,13 @@ def _build_custom_mounts_section(*, app_config: AppConfig | None = None) -> str:
return f"\n**Custom Mounted Directories:**\n{mounts_list}\n- If the user needs files outside `/mnt/user-data`, use these absolute container paths directly when they match the requested directory"
def apply_prompt_template(
subagent_enabled: bool = False,
max_concurrent_subagents: int = 3,
*,
agent_name: str | None = None,
available_skills: set[str] | None = None,
app_config: AppConfig | None = None,
) -> str:
def apply_prompt_template(subagent_enabled: bool = False, max_concurrent_subagents: int = 3, *, agent_name: str | None = None, available_skills: set[str] | None = None) -> str:
# Get memory context
memory_context = _get_memory_context(agent_name)
# Include subagent section only if enabled (from runtime parameter)
n = max_concurrent_subagents
subagent_section = _build_subagent_section(n, app_config=app_config) if subagent_enabled else ""
subagent_section = _build_subagent_section(n) if subagent_enabled else ""
# Add subagent reminder to critical_reminders if enabled
subagent_reminder = (
@@ -796,28 +701,27 @@ def apply_prompt_template(
)
# Get skills section
skills_section = get_skills_prompt_section(available_skills, app_config=app_config)
skills_section = get_skills_prompt_section(available_skills)
# Get deferred tools section (tool_search)
deferred_tools_section = get_deferred_tools_prompt_section(app_config=app_config)
deferred_tools_section = get_deferred_tools_prompt_section()
# Build ACP agent section only if ACP agents are configured
acp_section = _build_acp_section(app_config=app_config)
custom_mounts_section = _build_custom_mounts_section(app_config=app_config)
acp_section = _build_acp_section()
custom_mounts_section = _build_custom_mounts_section()
acp_and_mounts_section = "\n".join(section for section in (acp_section, custom_mounts_section) if section)
# Build and return the fully static system prompt.
# Memory and current date are injected per-turn via DynamicContextMiddleware
# as a <system-reminder> in the first HumanMessage, keeping this prompt
# identical across users and sessions for maximum prefix-cache reuse.
return SYSTEM_PROMPT_TEMPLATE.format(
# Format the prompt with dynamic skills and memory
prompt = SYSTEM_PROMPT_TEMPLATE.format(
agent_name=agent_name or "DeerFlow 2.0",
soul=get_agent_soul(agent_name),
self_update_section=_build_self_update_section(agent_name),
skills_section=skills_section,
deferred_tools_section=deferred_tools_section,
memory_context=memory_context,
subagent_section=subagent_section,
subagent_reminder=subagent_reminder,
subagent_thinking=subagent_thinking,
acp_section=acp_and_mounts_section,
)
return prompt + f"\n<current_date>{datetime.now().strftime('%Y-%m-%d, %A')}</current_date>"
@@ -1,109 +0,0 @@
"""Shared helpers for turning conversations into memory update inputs."""
from __future__ import annotations
import re
from copy import copy
from typing import Any
_UPLOAD_BLOCK_RE = re.compile(r"<uploaded_files>[\s\S]*?</uploaded_files>\n*", re.IGNORECASE)
_CORRECTION_PATTERNS = (
re.compile(r"\bthat(?:'s| is) (?:wrong|incorrect)\b", re.IGNORECASE),
re.compile(r"\byou misunderstood\b", re.IGNORECASE),
re.compile(r"\btry again\b", re.IGNORECASE),
re.compile(r"\bredo\b", re.IGNORECASE),
re.compile(r"不对"),
re.compile(r"你理解错了"),
re.compile(r"你理解有误"),
re.compile(r"重试"),
re.compile(r"重新来"),
re.compile(r"换一种"),
re.compile(r"改用"),
)
_REINFORCEMENT_PATTERNS = (
re.compile(r"\byes[,.]?\s+(?:exactly|perfect|that(?:'s| is) (?:right|correct|it))\b", re.IGNORECASE),
re.compile(r"\bperfect(?:[.!?]|$)", re.IGNORECASE),
re.compile(r"\bexactly\s+(?:right|correct)\b", re.IGNORECASE),
re.compile(r"\bthat(?:'s| is)\s+(?:exactly\s+)?(?:right|correct|what i (?:wanted|needed|meant))\b", re.IGNORECASE),
re.compile(r"\bkeep\s+(?:doing\s+)?that\b", re.IGNORECASE),
re.compile(r"\bjust\s+(?:like\s+)?(?:that|this)\b", re.IGNORECASE),
re.compile(r"\bthis is (?:great|helpful)\b(?:[.!?]|$)", re.IGNORECASE),
re.compile(r"\bthis is what i wanted\b(?:[.!?]|$)", re.IGNORECASE),
re.compile(r"对[,]?\s*就是这样(?:[。!?!?.]|$)"),
re.compile(r"完全正确(?:[。!?!?.]|$)"),
re.compile(r"(?:对[,]?\s*)?就是这个意思(?:[。!?!?.]|$)"),
re.compile(r"正是我想要的(?:[。!?!?.]|$)"),
re.compile(r"继续保持(?:[。!?!?.]|$)"),
)
def extract_message_text(message: Any) -> str:
"""Extract plain text from message content for filtering and signal detection."""
content = getattr(message, "content", "")
if isinstance(content, list):
text_parts: list[str] = []
for part in content:
if isinstance(part, str):
text_parts.append(part)
elif isinstance(part, dict):
text_val = part.get("text")
if isinstance(text_val, str):
text_parts.append(text_val)
return " ".join(text_parts)
return str(content)
def filter_messages_for_memory(messages: list[Any]) -> list[Any]:
"""Keep only user inputs and final assistant responses for memory updates."""
filtered = []
skip_next_ai = False
for msg in messages:
msg_type = getattr(msg, "type", None)
if msg_type == "human":
content_str = extract_message_text(msg)
if "<uploaded_files>" in content_str:
stripped = _UPLOAD_BLOCK_RE.sub("", content_str).strip()
if not stripped:
skip_next_ai = True
continue
clean_msg = copy(msg)
clean_msg.content = stripped
filtered.append(clean_msg)
skip_next_ai = False
else:
filtered.append(msg)
skip_next_ai = False
elif msg_type == "ai":
tool_calls = getattr(msg, "tool_calls", None)
if not tool_calls:
if skip_next_ai:
skip_next_ai = False
continue
filtered.append(msg)
return filtered
def detect_correction(messages: list[Any]) -> bool:
"""Detect explicit user corrections in recent conversation turns."""
recent_user_msgs = [msg for msg in messages[-6:] if getattr(msg, "type", None) == "human"]
for msg in recent_user_msgs:
content = extract_message_text(msg).strip()
if content and any(pattern.search(content) for pattern in _CORRECTION_PATTERNS):
return True
return False
def detect_reinforcement(messages: list[Any]) -> bool:
"""Detect explicit positive reinforcement signals in recent conversation turns."""
recent_user_msgs = [msg for msg in messages[-6:] if getattr(msg, "type", None) == "human"]
for msg in recent_user_msgs:
content = extract_message_text(msg).strip()
if content and any(pattern.search(content) for pattern in _REINFORCEMENT_PATTERNS):
return True
return False
@@ -20,7 +20,6 @@ class ConversationContext:
messages: list[Any]
timestamp: datetime = field(default_factory=lambda: datetime.now(UTC))
agent_name: str | None = None
user_id: str | None = None
correction_detected: bool = False
reinforcement_detected: bool = False
@@ -40,21 +39,11 @@ class MemoryUpdateQueue:
self._timer: threading.Timer | None = None
self._processing = False
@staticmethod
def _queue_key(
thread_id: str,
user_id: str | None,
agent_name: str | None,
) -> tuple[str, str | None, str | None]:
"""Return the debounce identity for a memory update target."""
return (thread_id, user_id, agent_name)
def add(
self,
thread_id: str,
messages: list[Any],
agent_name: str | None = None,
user_id: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
) -> None:
@@ -64,9 +53,6 @@ class MemoryUpdateQueue:
thread_id: The thread ID.
messages: The conversation messages.
agent_name: If provided, memory is stored per-agent. If None, uses global memory.
user_id: The user ID captured at enqueue time. Stored in ConversationContext so it
survives the threading.Timer boundary (ContextVar does not propagate across
raw threads).
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
"""
@@ -75,94 +61,48 @@ class MemoryUpdateQueue:
return
with self._lock:
self._enqueue_locked(
existing_context = next(
(context for context in self._queue if context.thread_id == thread_id),
None,
)
merged_correction_detected = correction_detected or (existing_context.correction_detected if existing_context is not None else False)
merged_reinforcement_detected = reinforcement_detected or (existing_context.reinforcement_detected if existing_context is not None else False)
context = ConversationContext(
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
correction_detected=merged_correction_detected,
reinforcement_detected=merged_reinforcement_detected,
)
# Check if this thread already has a pending update
# If so, replace it with the newer one
self._queue = [c for c in self._queue if c.thread_id != thread_id]
self._queue.append(context)
# Reset or start the debounce timer
self._reset_timer()
logger.info("Memory update queued for thread %s, queue size: %d", thread_id, len(self._queue))
def add_nowait(
self,
thread_id: str,
messages: list[Any],
agent_name: str | None = None,
user_id: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
) -> None:
"""Add a conversation and start processing immediately in the background."""
config = get_memory_config()
if not config.enabled:
return
with self._lock:
self._enqueue_locked(
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
)
self._schedule_timer(0)
logger.info("Memory update queued for immediate processing on thread %s, queue size: %d", thread_id, len(self._queue))
def _enqueue_locked(
self,
*,
thread_id: str,
messages: list[Any],
agent_name: str | None,
user_id: str | None,
correction_detected: bool,
reinforcement_detected: bool,
) -> None:
queue_key = self._queue_key(thread_id, user_id, agent_name)
existing_context = next(
(context for context in self._queue if self._queue_key(context.thread_id, context.user_id, context.agent_name) == queue_key),
None,
)
merged_correction_detected = correction_detected or (existing_context.correction_detected if existing_context is not None else False)
merged_reinforcement_detected = reinforcement_detected or (existing_context.reinforcement_detected if existing_context is not None else False)
context = ConversationContext(
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=merged_correction_detected,
reinforcement_detected=merged_reinforcement_detected,
)
self._queue = [context for context in self._queue if self._queue_key(context.thread_id, context.user_id, context.agent_name) != queue_key]
self._queue.append(context)
def _reset_timer(self) -> None:
"""Reset the debounce timer."""
config = get_memory_config()
self._schedule_timer(config.debounce_seconds)
logger.debug("Memory update timer set for %ss", config.debounce_seconds)
def _schedule_timer(self, delay_seconds: float) -> None:
"""Schedule queue processing after the provided delay."""
# Cancel existing timer if any
if self._timer is not None:
self._timer.cancel()
# Start new timer
self._timer = threading.Timer(
delay_seconds,
config.debounce_seconds,
self._process_queue,
)
self._timer.daemon = True
self._timer.start()
logger.debug("Memory update timer set for %ss", config.debounce_seconds)
def _process_queue(self) -> None:
"""Process all queued conversation contexts."""
# Import here to avoid circular dependency
@@ -170,8 +110,8 @@ class MemoryUpdateQueue:
with self._lock:
if self._processing:
# Preserve immediate flush semantics even if another worker is active.
self._schedule_timer(0)
# Already processing, reschedule
self._reset_timer()
return
if not self._queue:
@@ -196,7 +136,6 @@ class MemoryUpdateQueue:
agent_name=context.agent_name,
correction_detected=context.correction_detected,
reinforcement_detected=context.reinforcement_detected,
user_id=context.user_id,
)
if success:
logger.info("Memory updated successfully for thread %s", context.thread_id)
@@ -225,13 +164,6 @@ class MemoryUpdateQueue:
self._process_queue()
def flush_nowait(self) -> None:
"""Start queue processing immediately in a background thread."""
with self._lock:
# Daemon thread: queued messages may be lost if the process exits
# before _process_queue completes. Acceptable for best-effort memory updates.
self._schedule_timer(0)
def clear(self) -> None:
"""Clear the queue without processing.
@@ -4,7 +4,6 @@ import abc
import json
import logging
import threading
import uuid
from datetime import UTC, datetime
from pathlib import Path
from typing import Any
@@ -44,17 +43,17 @@ class MemoryStorage(abc.ABC):
"""Abstract base class for memory storage providers."""
@abc.abstractmethod
def load(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def load(self, agent_name: str | None = None) -> dict[str, Any]:
"""Load memory data for the given agent."""
pass
@abc.abstractmethod
def reload(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def reload(self, agent_name: str | None = None) -> dict[str, Any]:
"""Force reload memory data for the given agent."""
pass
@abc.abstractmethod
def save(self, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
def save(self, memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
"""Save memory data for the given agent."""
pass
@@ -64,11 +63,9 @@ class FileMemoryStorage(MemoryStorage):
def __init__(self):
"""Initialize the file memory storage."""
# Per-user/agent memory cache: keyed by (user_id, agent_name) tuple (None = global)
# Per-agent memory cache: keyed by agent_name (None = global)
# Value: (memory_data, file_mtime)
self._memory_cache: dict[tuple[str | None, str | None], tuple[dict[str, Any], float | None]] = {}
# Guards all reads and writes to _memory_cache across concurrent callers.
self._cache_lock = threading.Lock()
self._memory_cache: dict[str | None, tuple[dict[str, Any], float | None]] = {}
def _validate_agent_name(self, agent_name: str) -> None:
"""Validate that the agent name is safe to use in filesystem paths.
@@ -81,29 +78,21 @@ class FileMemoryStorage(MemoryStorage):
if not AGENT_NAME_PATTERN.match(agent_name):
raise ValueError(f"Invalid agent name {agent_name!r}: names must match {AGENT_NAME_PATTERN.pattern}")
def _get_memory_file_path(self, agent_name: str | None = None, *, user_id: str | None = None) -> Path:
def _get_memory_file_path(self, agent_name: str | None = None) -> Path:
"""Get the path to the memory file."""
if user_id is not None:
if agent_name is not None:
self._validate_agent_name(agent_name)
return get_paths().user_agent_memory_file(user_id, agent_name)
config = get_memory_config()
if config.storage_path and Path(config.storage_path).is_absolute():
return Path(config.storage_path)
return get_paths().user_memory_file(user_id)
# Legacy: no user_id
if agent_name is not None:
self._validate_agent_name(agent_name)
return get_paths().agent_memory_file(agent_name)
config = get_memory_config()
if config.storage_path:
p = Path(config.storage_path)
return p if p.is_absolute() else get_paths().base_dir / p
return get_paths().memory_file
def _load_memory_from_file(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def _load_memory_from_file(self, agent_name: str | None = None) -> dict[str, Any]:
"""Load memory data from file."""
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
file_path = self._get_memory_file_path(agent_name)
if not file_path.exists():
return create_empty_memory()
@@ -116,60 +105,46 @@ class FileMemoryStorage(MemoryStorage):
logger.warning("Failed to load memory file: %s", e)
return create_empty_memory()
@staticmethod
def _cache_key(agent_name: str | None = None, *, user_id: str | None = None) -> tuple[str | None, str | None]:
return (user_id, agent_name)
def load(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def load(self, agent_name: str | None = None) -> dict[str, Any]:
"""Load memory data (cached with file modification time check)."""
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
cache_key = self._cache_key(agent_name, user_id=user_id)
file_path = self._get_memory_file_path(agent_name)
try:
current_mtime = file_path.stat().st_mtime if file_path.exists() else None
except OSError:
current_mtime = None
with self._cache_lock:
cached = self._memory_cache.get(cache_key)
if cached is not None and cached[1] == current_mtime:
return cached[0]
cached = self._memory_cache.get(agent_name)
memory_data = self._load_memory_from_file(agent_name, user_id=user_id)
if cached is None or cached[1] != current_mtime:
memory_data = self._load_memory_from_file(agent_name)
self._memory_cache[agent_name] = (memory_data, current_mtime)
return memory_data
with self._cache_lock:
self._memory_cache[cache_key] = (memory_data, current_mtime)
return cached[0]
return memory_data
def reload(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def reload(self, agent_name: str | None = None) -> dict[str, Any]:
"""Reload memory data from file, forcing cache invalidation."""
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
memory_data = self._load_memory_from_file(agent_name, user_id=user_id)
cache_key = self._cache_key(agent_name, user_id=user_id)
file_path = self._get_memory_file_path(agent_name)
memory_data = self._load_memory_from_file(agent_name)
try:
mtime = file_path.stat().st_mtime if file_path.exists() else None
except OSError:
mtime = None
with self._cache_lock:
self._memory_cache[cache_key] = (memory_data, mtime)
self._memory_cache[agent_name] = (memory_data, mtime)
return memory_data
def save(self, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
def save(self, memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
"""Save memory data to file and update cache."""
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
cache_key = self._cache_key(agent_name, user_id=user_id)
file_path = self._get_memory_file_path(agent_name)
try:
file_path.parent.mkdir(parents=True, exist_ok=True)
# Shallow-copy before adding lastUpdated so the caller's dict is not
# mutated as a side-effect, and the cache reference is not silently
# updated before the file write succeeds.
memory_data = {**memory_data, "lastUpdated": utc_now_iso_z()}
memory_data["lastUpdated"] = utc_now_iso_z()
temp_path = file_path.with_suffix(f".{uuid.uuid4().hex}.tmp")
temp_path = file_path.with_suffix(".tmp")
with open(temp_path, "w", encoding="utf-8") as f:
json.dump(memory_data, f, indent=2, ensure_ascii=False)
@@ -180,8 +155,7 @@ class FileMemoryStorage(MemoryStorage):
except OSError:
mtime = None
with self._cache_lock:
self._memory_cache[cache_key] = (memory_data, mtime)
self._memory_cache[agent_name] = (memory_data, mtime)
logger.info("Memory saved to %s", file_path)
return True
except OSError as e:
@@ -1,34 +0,0 @@
"""Hooks fired before summarization removes messages from state."""
from __future__ import annotations
from deerflow.agents.memory.message_processing import detect_correction, detect_reinforcement, filter_messages_for_memory
from deerflow.agents.memory.queue import get_memory_queue
from deerflow.agents.middlewares.summarization_middleware import SummarizationEvent
from deerflow.config.memory_config import get_memory_config
from deerflow.runtime.user_context import resolve_runtime_user_id
def memory_flush_hook(event: SummarizationEvent) -> None:
"""Flush messages about to be summarized into the memory queue."""
if not get_memory_config().enabled or not event.thread_id:
return
filtered_messages = filter_messages_for_memory(list(event.messages_to_summarize))
user_messages = [message for message in filtered_messages if getattr(message, "type", None) == "human"]
assistant_messages = [message for message in filtered_messages if getattr(message, "type", None) == "ai"]
if not user_messages or not assistant_messages:
return
correction_detected = detect_correction(filtered_messages)
reinforcement_detected = not correction_detected and detect_reinforcement(filtered_messages)
user_id = resolve_runtime_user_id(event.runtime)
queue = get_memory_queue()
queue.add_nowait(
thread_id=event.thread_id,
messages=filtered_messages,
agent_name=event.agent_name,
user_id=user_id,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
)
@@ -1,9 +1,5 @@
"""Memory updater for reading, writing, and updating memory data."""
import asyncio
import atexit
import concurrent.futures
import copy
import json
import logging
import math
@@ -26,45 +22,32 @@ from deerflow.models import create_chat_model
logger = logging.getLogger(__name__)
# Thread pool for offloading sync memory updates when called from an async
# context. Unlike the previous asyncio.run() approach, this runs *sync*
# model.invoke() calls — no event loop is created, so the langchain async
# httpx client pool (globally cached via @lru_cache) is never touched and
# cross-loop connection reuse is impossible.
_SYNC_MEMORY_UPDATER_EXECUTOR = concurrent.futures.ThreadPoolExecutor(
max_workers=4,
thread_name_prefix="memory-updater-sync",
)
atexit.register(lambda: _SYNC_MEMORY_UPDATER_EXECUTOR.shutdown(wait=False))
def _create_empty_memory() -> dict[str, Any]:
"""Backward-compatible wrapper around the storage-layer empty-memory factory."""
return create_empty_memory()
def _save_memory_to_file(memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
def _save_memory_to_file(memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
"""Backward-compatible wrapper around the configured memory storage save path."""
return get_memory_storage().save(memory_data, agent_name, user_id=user_id)
return get_memory_storage().save(memory_data, agent_name)
def get_memory_data(agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def get_memory_data(agent_name: str | None = None) -> dict[str, Any]:
"""Get the current memory data via storage provider."""
return get_memory_storage().load(agent_name, user_id=user_id)
return get_memory_storage().load(agent_name)
def reload_memory_data(agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def reload_memory_data(agent_name: str | None = None) -> dict[str, Any]:
"""Reload memory data via storage provider."""
return get_memory_storage().reload(agent_name, user_id=user_id)
return get_memory_storage().reload(agent_name)
def import_memory_data(memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def import_memory_data(memory_data: dict[str, Any], agent_name: str | None = None) -> dict[str, Any]:
"""Persist imported memory data via storage provider.
Args:
memory_data: Full memory payload to persist.
agent_name: If provided, imports into per-agent memory.
user_id: If provided, scopes memory to a specific user.
Returns:
The saved memory data after storage normalization.
@@ -73,15 +56,15 @@ def import_memory_data(memory_data: dict[str, Any], agent_name: str | None = Non
OSError: If persisting the imported memory fails.
"""
storage = get_memory_storage()
if not storage.save(memory_data, agent_name, user_id=user_id):
if not storage.save(memory_data, agent_name):
raise OSError("Failed to save imported memory data")
return storage.load(agent_name, user_id=user_id)
return storage.load(agent_name)
def clear_memory_data(agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def clear_memory_data(agent_name: str | None = None) -> dict[str, Any]:
"""Clear all stored memory data and persist an empty structure."""
cleared_memory = create_empty_memory()
if not _save_memory_to_file(cleared_memory, agent_name, user_id=user_id):
if not _save_memory_to_file(cleared_memory, agent_name):
raise OSError("Failed to save cleared memory data")
return cleared_memory
@@ -98,8 +81,6 @@ def create_memory_fact(
category: str = "context",
confidence: float = 0.5,
agent_name: str | None = None,
*,
user_id: str | None = None,
) -> dict[str, Any]:
"""Create a new fact and persist the updated memory data."""
normalized_content = content.strip()
@@ -109,7 +90,7 @@ def create_memory_fact(
normalized_category = category.strip() or "context"
validated_confidence = _validate_confidence(confidence)
now = utc_now_iso_z()
memory_data = get_memory_data(agent_name, user_id=user_id)
memory_data = get_memory_data(agent_name)
updated_memory = dict(memory_data)
facts = list(memory_data.get("facts", []))
facts.append(
@@ -124,15 +105,15 @@ def create_memory_fact(
)
updated_memory["facts"] = facts
if not _save_memory_to_file(updated_memory, agent_name, user_id=user_id):
if not _save_memory_to_file(updated_memory, agent_name):
raise OSError("Failed to save memory data after creating fact")
return updated_memory
def delete_memory_fact(fact_id: str, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
def delete_memory_fact(fact_id: str, agent_name: str | None = None) -> dict[str, Any]:
"""Delete a fact by its id and persist the updated memory data."""
memory_data = get_memory_data(agent_name, user_id=user_id)
memory_data = get_memory_data(agent_name)
facts = memory_data.get("facts", [])
updated_facts = [fact for fact in facts if fact.get("id") != fact_id]
if len(updated_facts) == len(facts):
@@ -141,7 +122,7 @@ def delete_memory_fact(fact_id: str, agent_name: str | None = None, *, user_id:
updated_memory = dict(memory_data)
updated_memory["facts"] = updated_facts
if not _save_memory_to_file(updated_memory, agent_name, user_id=user_id):
if not _save_memory_to_file(updated_memory, agent_name):
raise OSError(f"Failed to save memory data after deleting fact '{fact_id}'")
return updated_memory
@@ -153,11 +134,9 @@ def update_memory_fact(
category: str | None = None,
confidence: float | None = None,
agent_name: str | None = None,
*,
user_id: str | None = None,
) -> dict[str, Any]:
"""Update an existing fact and persist the updated memory data."""
memory_data = get_memory_data(agent_name, user_id=user_id)
memory_data = get_memory_data(agent_name)
updated_memory = dict(memory_data)
updated_facts: list[dict[str, Any]] = []
found = False
@@ -184,7 +163,7 @@ def update_memory_fact(
updated_memory["facts"] = updated_facts
if not _save_memory_to_file(updated_memory, agent_name, user_id=user_id):
if not _save_memory_to_file(updated_memory, agent_name):
raise OSError(f"Failed to save memory data after updating fact '{fact_id}'")
return updated_memory
@@ -290,154 +269,6 @@ class MemoryUpdater:
model_name = self._model_name or config.model_name
return create_chat_model(name=model_name, thinking_enabled=False)
def _build_correction_hint(
self,
correction_detected: bool,
reinforcement_detected: bool,
) -> str:
"""Build optional prompt hints for correction and reinforcement signals."""
correction_hint = ""
if correction_detected:
correction_hint = (
"IMPORTANT: Explicit correction signals were detected in this conversation. "
"Pay special attention to what the agent got wrong, what the user corrected, "
"and record the correct approach as a fact with category "
'"correction" and confidence >= 0.95 when appropriate.'
)
if reinforcement_detected:
reinforcement_hint = (
"IMPORTANT: Positive reinforcement signals were detected in this conversation. "
"The user explicitly confirmed the agent's approach was correct or helpful. "
"Record the confirmed approach, style, or preference as a fact with category "
'"preference" or "behavior" and confidence >= 0.9 when appropriate.'
)
correction_hint = (correction_hint + "\n" + reinforcement_hint).strip() if correction_hint else reinforcement_hint
return correction_hint
def _prepare_update_prompt(
self,
messages: list[Any],
agent_name: str | None,
correction_detected: bool,
reinforcement_detected: bool,
user_id: str | None = None,
) -> tuple[dict[str, Any], str] | None:
"""Load memory and build the update prompt for a conversation."""
config = get_memory_config()
if not config.enabled or not messages:
return None
current_memory = get_memory_data(agent_name, user_id=user_id)
conversation_text = format_conversation_for_update(messages)
if not conversation_text.strip():
return None
correction_hint = self._build_correction_hint(
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
)
prompt = MEMORY_UPDATE_PROMPT.format(
current_memory=json.dumps(current_memory, indent=2),
conversation=conversation_text,
correction_hint=correction_hint,
)
return current_memory, prompt
def _finalize_update(
self,
current_memory: dict[str, Any],
response_content: Any,
thread_id: str | None,
agent_name: str | None,
user_id: str | None = None,
) -> bool:
"""Parse the model response, apply updates, and persist memory."""
response_text = _extract_text(response_content).strip()
if response_text.startswith("```"):
lines = response_text.split("\n")
response_text = "\n".join(lines[1:-1] if lines[-1] == "```" else lines[1:])
update_data = json.loads(response_text)
# Deep-copy before in-place mutation so a subsequent save() failure
# cannot corrupt the still-cached original object reference.
updated_memory = self._apply_updates(copy.deepcopy(current_memory), update_data, thread_id)
updated_memory = _strip_upload_mentions_from_memory(updated_memory)
return get_memory_storage().save(updated_memory, agent_name, user_id=user_id)
async def aupdate_memory(
self,
messages: list[Any],
thread_id: str | None = None,
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Update memory asynchronously by delegating to the sync path.
Uses ``asyncio.to_thread`` to run the *sync* ``model.invoke()`` path
in a worker thread so no second event loop is created and the
langchain async httpx client pool (shared with the lead agent) is
never touched. This eliminates the cross-loop connection-reuse bug
described in issue #2615.
"""
return await asyncio.to_thread(
self._do_update_memory_sync,
messages=messages,
thread_id=thread_id,
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
user_id=user_id,
)
def _do_update_memory_sync(
self,
messages: list[Any],
thread_id: str | None = None,
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Pure-sync memory update using ``model.invoke()``.
Uses the *sync* LLM call path so no event loop is created. This
guarantees that the langchain provider's globally cached async
httpx ``AsyncClient`` / connection pool (the one shared with the
lead agent) is never touched — no cross-loop connection reuse is
possible.
"""
try:
prepared = self._prepare_update_prompt(
messages=messages,
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
user_id=user_id,
)
if prepared is None:
return False
current_memory, prompt = prepared
model = self._get_model()
response = model.invoke(prompt, config={"run_name": "memory_agent"})
return self._finalize_update(
current_memory=current_memory,
response_content=response.content,
thread_id=thread_id,
agent_name=agent_name,
user_id=user_id,
)
except json.JSONDecodeError as e:
logger.warning("Failed to parse LLM response for memory update: %s", e)
return False
except Exception as e:
logger.exception("Memory update failed: %s", e)
return False
def update_memory(
self,
messages: list[Any],
@@ -445,18 +276,8 @@ class MemoryUpdater:
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Synchronously update memory using the sync LLM path.
Uses ``model.invoke()`` (sync HTTP) which operates on a completely
separate connection pool from the async ``AsyncClient`` shared by
the lead agent. This eliminates the cross-loop connection-reuse
bug described in issue #2615.
When called from within a running event loop (e.g. from a LangGraph
node), the blocking sync call is offloaded to a thread pool so the
caller's loop is not blocked.
"""Update memory based on conversation messages.
Args:
messages: List of conversation messages.
@@ -464,40 +285,82 @@ class MemoryUpdater:
agent_name: If provided, updates per-agent memory. If None, updates global memory.
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
user_id: If provided, scopes memory to a specific user.
Returns:
True if update was successful, False otherwise.
"""
try:
loop = asyncio.get_running_loop()
except RuntimeError:
loop = None
config = get_memory_config()
if not config.enabled:
return False
if loop is not None and loop.is_running():
try:
future = _SYNC_MEMORY_UPDATER_EXECUTOR.submit(
self._do_update_memory_sync,
messages=messages,
thread_id=thread_id,
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
user_id=user_id,
)
return future.result()
except Exception:
logger.exception("Failed to offload memory update to executor")
if not messages:
return False
try:
# Get current memory
current_memory = get_memory_data(agent_name)
# Format conversation for prompt
conversation_text = format_conversation_for_update(messages)
if not conversation_text.strip():
return False
return self._do_update_memory_sync(
messages=messages,
thread_id=thread_id,
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
user_id=user_id,
)
# Build prompt
correction_hint = ""
if correction_detected:
correction_hint = (
"IMPORTANT: Explicit correction signals were detected in this conversation. "
"Pay special attention to what the agent got wrong, what the user corrected, "
"and record the correct approach as a fact with category "
'"correction" and confidence >= 0.95 when appropriate.'
)
if reinforcement_detected:
reinforcement_hint = (
"IMPORTANT: Positive reinforcement signals were detected in this conversation. "
"The user explicitly confirmed the agent's approach was correct or helpful. "
"Record the confirmed approach, style, or preference as a fact with category "
'"preference" or "behavior" and confidence >= 0.9 when appropriate.'
)
correction_hint = (correction_hint + "\n" + reinforcement_hint).strip() if correction_hint else reinforcement_hint
prompt = MEMORY_UPDATE_PROMPT.format(
current_memory=json.dumps(current_memory, indent=2),
conversation=conversation_text,
correction_hint=correction_hint,
)
# Call LLM
model = self._get_model()
response = model.invoke(prompt)
response_text = _extract_text(response.content).strip()
# Parse response
# Remove markdown code blocks if present
if response_text.startswith("```"):
lines = response_text.split("\n")
response_text = "\n".join(lines[1:-1] if lines[-1] == "```" else lines[1:])
update_data = json.loads(response_text)
# Apply updates
updated_memory = self._apply_updates(current_memory, update_data, thread_id)
# Strip file-upload mentions from all summaries before saving.
# Uploaded files are session-scoped and won't exist in future sessions,
# so recording upload events in long-term memory causes the agent to
# try (and fail) to locate those files in subsequent conversations.
updated_memory = _strip_upload_mentions_from_memory(updated_memory)
# Save
return get_memory_storage().save(updated_memory, agent_name)
except json.JSONDecodeError as e:
logger.warning("Failed to parse LLM response for memory update: %s", e)
return False
except Exception as e:
logger.exception("Memory update failed: %s", e)
return False
def _apply_updates(
self,
@@ -592,7 +455,6 @@ def update_memory_from_conversation(
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Convenience function to update memory from a conversation.
@@ -602,10 +464,9 @@ def update_memory_from_conversation(
agent_name: If provided, updates per-agent memory. If None, updates global memory.
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
user_id: If provided, scopes memory to a specific user.
Returns:
True if successful, False otherwise.
"""
updater = MemoryUpdater()
return updater.update_memory(messages, thread_id, agent_name, correction_detected, reinforcement_detected, user_id=user_id)
return updater.update_memory(messages, thread_id, agent_name, correction_detected, reinforcement_detected)
@@ -3,7 +3,6 @@
import json
import logging
from collections.abc import Callable
from hashlib import sha256
from typing import override
from langchain.agents import AgentState
@@ -37,13 +36,6 @@ class ClarificationMiddleware(AgentMiddleware[ClarificationMiddlewareState]):
state_schema = ClarificationMiddlewareState
def _stable_message_id(self, tool_call_id: str, formatted_message: str) -> str:
"""Build a deterministic message ID so retried clarification calls replace, not append."""
if tool_call_id:
return f"clarification:{tool_call_id}"
digest = sha256(formatted_message.encode("utf-8")).hexdigest()[:16]
return f"clarification:{digest}"
def _is_chinese(self, text: str) -> bool:
"""Check if text contains Chinese characters.
@@ -139,7 +131,6 @@ class ClarificationMiddleware(AgentMiddleware[ClarificationMiddlewareState]):
# Create a ToolMessage with the formatted question
# This will be added to the message history
tool_message = ToolMessage(
id=self._stable_message_id(tool_call_id, formatted_message),
content=formatted_message,
tool_call_id=tool_call_id,
name="ask_clarification",
@@ -13,7 +13,6 @@ at the correct positions (immediately after each dangling AIMessage), not append
to the end of the message list as before_model + add_messages reducer would do.
"""
import json
import logging
from collections.abc import Awaitable, Callable
from typing import override
@@ -34,132 +33,58 @@ class DanglingToolCallMiddleware(AgentMiddleware[AgentState]):
offending AIMessage so the LLM receives a well-formed conversation.
"""
@staticmethod
def _message_tool_calls(msg) -> list[dict]:
"""Return normalized tool calls from structured fields or raw provider payloads.
LangChain stores malformed provider function calls in ``invalid_tool_calls``.
They do not execute, but provider adapters may still serialize enough of
the call id/name back into the next request that strict OpenAI-compatible
validators expect a matching ToolMessage. Treat them as dangling calls so
the next model request stays well-formed and the model sees a recoverable
tool error instead of another provider 400.
"""
normalized: list[dict] = []
tool_calls = getattr(msg, "tool_calls", None) or []
normalized.extend(list(tool_calls))
raw_tool_calls = (getattr(msg, "additional_kwargs", None) or {}).get("tool_calls") or []
if not tool_calls:
for raw_tc in raw_tool_calls:
if not isinstance(raw_tc, dict):
continue
function = raw_tc.get("function")
name = raw_tc.get("name")
if not name and isinstance(function, dict):
name = function.get("name")
args = raw_tc.get("args", {})
if not args and isinstance(function, dict):
raw_args = function.get("arguments")
if isinstance(raw_args, str):
try:
parsed_args = json.loads(raw_args)
except (TypeError, ValueError, json.JSONDecodeError):
parsed_args = {}
args = parsed_args if isinstance(parsed_args, dict) else {}
normalized.append(
{
"id": raw_tc.get("id"),
"name": name or "unknown",
"args": args if isinstance(args, dict) else {},
}
)
for invalid_tc in getattr(msg, "invalid_tool_calls", None) or []:
if not isinstance(invalid_tc, dict):
continue
normalized.append(
{
"id": invalid_tc.get("id"),
"name": invalid_tc.get("name") or "unknown",
"args": {},
"invalid": True,
"error": invalid_tc.get("error"),
}
)
return normalized
@staticmethod
def _synthetic_tool_message_content(tool_call: dict) -> str:
if tool_call.get("invalid"):
error = tool_call.get("error")
if isinstance(error, str) and error:
return f"[Tool call could not be executed because its arguments were invalid: {error}]"
return "[Tool call could not be executed because its arguments were invalid.]"
return "[Tool call was interrupted and did not return a result.]"
def _build_patched_messages(self, messages: list) -> list | None:
"""Return messages with tool results grouped after their tool-call AIMessage.
"""Return a new message list with patches inserted at the correct positions.
This normalizes model-bound causal order before provider serialization while
preserving already-valid transcripts unchanged.
For each AIMessage with dangling tool_calls (no corresponding ToolMessage),
a synthetic ToolMessage is inserted immediately after that AIMessage.
Returns None if no patches are needed.
"""
tool_messages_by_id: dict[str, ToolMessage] = {}
# Collect IDs of all existing ToolMessages
existing_tool_msg_ids: set[str] = set()
for msg in messages:
if isinstance(msg, ToolMessage):
tool_messages_by_id.setdefault(msg.tool_call_id, msg)
existing_tool_msg_ids.add(msg.tool_call_id)
tool_call_ids: set[str] = set()
# Check if any patching is needed
needs_patch = False
for msg in messages:
if getattr(msg, "type", None) != "ai":
continue
for tc in self._message_tool_calls(msg):
for tc in getattr(msg, "tool_calls", None) or []:
tc_id = tc.get("id")
if tc_id:
tool_call_ids.add(tc_id)
if tc_id and tc_id not in existing_tool_msg_ids:
needs_patch = True
break
if needs_patch:
break
if not needs_patch:
return None
# Build new list with patches inserted right after each dangling AIMessage
patched: list = []
consumed_tool_msg_ids: set[str] = set()
patched_ids: set[str] = set()
patch_count = 0
for msg in messages:
if isinstance(msg, ToolMessage) and msg.tool_call_id in tool_call_ids:
continue
patched.append(msg)
if getattr(msg, "type", None) != "ai":
continue
for tc in self._message_tool_calls(msg):
for tc in getattr(msg, "tool_calls", None) or []:
tc_id = tc.get("id")
if not tc_id or tc_id in consumed_tool_msg_ids:
continue
existing_tool_msg = tool_messages_by_id.get(tc_id)
if existing_tool_msg is not None:
patched.append(existing_tool_msg)
consumed_tool_msg_ids.add(tc_id)
else:
if tc_id and tc_id not in existing_tool_msg_ids and tc_id not in patched_ids:
patched.append(
ToolMessage(
content=self._synthetic_tool_message_content(tc),
content="[Tool call was interrupted and did not return a result.]",
tool_call_id=tc_id,
name=tc.get("name", "unknown"),
status="error",
)
)
consumed_tool_msg_ids.add(tc_id)
patched_ids.add(tc_id)
patch_count += 1
if patched == messages:
return None
if patch_count:
logger.warning(f"Injecting {patch_count} placeholder ToolMessage(s) for dangling tool calls")
logger.warning(f"Injecting {patch_count} placeholder ToolMessage(s) for dangling tool calls")
return patched
@override
@@ -16,9 +16,6 @@ from typing import override
from langchain.agents import AgentState
from langchain.agents.middleware import AgentMiddleware
from langchain.agents.middleware.types import ModelCallResult, ModelRequest, ModelResponse
from langchain_core.messages import ToolMessage
from langgraph.prebuilt.tool_node import ToolCallRequest
from langgraph.types import Command
logger = logging.getLogger(__name__)
@@ -38,7 +35,7 @@ class DeferredToolFilterMiddleware(AgentMiddleware[AgentState]):
if not registry:
return request
deferred_names = registry.deferred_names
deferred_names = {e.name for e in registry.entries}
active_tools = [t for t in request.tools if getattr(t, "name", None) not in deferred_names]
if len(active_tools) < len(request.tools):
@@ -46,28 +43,6 @@ class DeferredToolFilterMiddleware(AgentMiddleware[AgentState]):
return request.override(tools=active_tools)
def _blocked_tool_message(self, request: ToolCallRequest) -> ToolMessage | None:
from deerflow.tools.builtins.tool_search import get_deferred_registry
registry = get_deferred_registry()
if not registry:
return None
tool_name = str(request.tool_call.get("name") or "")
if not tool_name:
return None
if not registry.contains(tool_name):
return None
tool_call_id = str(request.tool_call.get("id") or "missing_tool_call_id")
return ToolMessage(
content=(f"Error: Tool '{tool_name}' is deferred and has not been promoted yet. Call tool_search first to expose and promote this tool's schema, then retry."),
tool_call_id=tool_call_id,
name=tool_name,
status="error",
)
@override
def wrap_model_call(
self,
@@ -76,17 +51,6 @@ class DeferredToolFilterMiddleware(AgentMiddleware[AgentState]):
) -> ModelCallResult:
return handler(self._filter_tools(request))
@override
def wrap_tool_call(
self,
request: ToolCallRequest,
handler: Callable[[ToolCallRequest], ToolMessage | Command],
) -> ToolMessage | Command:
blocked = self._blocked_tool_message(request)
if blocked is not None:
return blocked
return handler(request)
@override
async def awrap_model_call(
self,
@@ -94,14 +58,3 @@ class DeferredToolFilterMiddleware(AgentMiddleware[AgentState]):
handler: Callable[[ModelRequest], Awaitable[ModelResponse]],
) -> ModelCallResult:
return await handler(self._filter_tools(request))
@override
async def awrap_tool_call(
self,
request: ToolCallRequest,
handler: Callable[[ToolCallRequest], Awaitable[ToolMessage | Command]],
) -> ToolMessage | Command:
blocked = self._blocked_tool_message(request)
if blocked is not None:
return blocked
return await handler(request)
@@ -1,204 +0,0 @@
"""Middleware to inject dynamic context (memory, current date) as a system-reminder.
The system prompt is kept fully static for maximum prefix-cache reuse across users
and sessions. The current date is always injected. Per-user memory is also injected
when ``memory.injection_enabled`` is True in the app config. Both are delivered once
per conversation as a dedicated <system-reminder> HumanMessage inserted before the
first user message (frozen-snapshot pattern).
When a conversation spans midnight the middleware detects the date change and injects
a lightweight date-update reminder as a separate HumanMessage before the current turn.
This correction is persisted so subsequent turns on the new day see a consistent history
and do not re-inject.
Reminder format:
<system-reminder>
<memory>...</memory>
<current_date>2026-05-08, Friday</current_date>
</system-reminder>
Date-update format:
<system-reminder>
<current_date>2026-05-09, Saturday</current_date>
</system-reminder>
"""
from __future__ import annotations
import logging
import re
import uuid
from datetime import datetime
from typing import TYPE_CHECKING, override
from langchain.agents.middleware import AgentMiddleware
from langchain_core.messages import HumanMessage
from langgraph.runtime import Runtime
if TYPE_CHECKING:
from deerflow.config.app_config import AppConfig
logger = logging.getLogger(__name__)
_DATE_RE = re.compile(r"<current_date>([^<]+)</current_date>")
_DYNAMIC_CONTEXT_REMINDER_KEY = "dynamic_context_reminder"
_SUMMARY_MESSAGE_NAME = "summary"
def _extract_date(content: str) -> str | None:
"""Return the first <current_date> value found in *content*, or None."""
m = _DATE_RE.search(content)
return m.group(1) if m else None
def is_dynamic_context_reminder(message: object) -> bool:
"""Return whether *message* is a hidden dynamic-context reminder."""
return isinstance(message, HumanMessage) and bool(message.additional_kwargs.get(_DYNAMIC_CONTEXT_REMINDER_KEY))
def _last_injected_date(messages: list) -> str | None:
"""Scan messages in reverse and return the most recently injected date.
Detection uses the ``dynamic_context_reminder`` additional_kwargs flag rather
than content substring matching, so user messages containing ``<system-reminder>``
are not mistakenly treated as injected reminders.
"""
for msg in reversed(messages):
if is_dynamic_context_reminder(msg):
content_str = msg.content if isinstance(msg.content, str) else str(msg.content)
return _extract_date(content_str)
return None
def _is_user_injection_target(message: object) -> bool:
"""Return whether *message* can receive a dynamic-context reminder."""
return isinstance(message, HumanMessage) and not is_dynamic_context_reminder(message) and message.name != _SUMMARY_MESSAGE_NAME
class DynamicContextMiddleware(AgentMiddleware):
"""Inject memory and current date into HumanMessages as a <system-reminder>.
First turn
----------
Prepends a full system-reminder (memory + date) to the first HumanMessage and
persists it (same message ID). The first message is then frozen for the whole
session — its content never changes again, so the prefix cache can hit on every
subsequent turn.
Midnight crossing
-----------------
If the conversation spans midnight, the current date differs from the date that
was injected earlier. In that case a lightweight date-update reminder is prepended
to the **current** (last) HumanMessage and persisted. Subsequent turns on the new
day see the corrected date in history and skip re-injection.
"""
def __init__(self, agent_name: str | None = None, *, app_config: AppConfig | None = None):
super().__init__()
self._agent_name = agent_name
self._app_config = app_config
def _build_full_reminder(self) -> str:
from deerflow.agents.lead_agent.prompt import _get_memory_context
# Memory injection is gated by injection_enabled; date is always included.
injection_enabled = self._app_config.memory.injection_enabled if self._app_config else True
memory_context = _get_memory_context(self._agent_name, app_config=self._app_config) if injection_enabled else ""
current_date = datetime.now().strftime("%Y-%m-%d, %A")
lines: list[str] = ["<system-reminder>"]
if memory_context:
lines.append(memory_context.strip())
lines.append("") # blank line separating memory from date
lines.append(f"<current_date>{current_date}</current_date>")
lines.append("</system-reminder>")
return "\n".join(lines)
def _build_date_update_reminder(self) -> str:
current_date = datetime.now().strftime("%Y-%m-%d, %A")
return "\n".join(
[
"<system-reminder>",
f"<current_date>{current_date}</current_date>",
"</system-reminder>",
]
)
@staticmethod
def _make_reminder_and_user_messages(original: HumanMessage, reminder_content: str) -> tuple[HumanMessage, HumanMessage]:
"""Return (reminder_msg, user_msg) using the ID-swap technique.
reminder_msg takes the original message's ID so that add_messages replaces it
in-place (preserving position). user_msg carries the original content with a
derived ``{id}__user`` ID and is appended immediately after by add_messages.
If the original message has no ID a stable UUID is generated so the derived
``{id}__user`` ID never collapses to the ambiguous ``None__user`` string.
"""
stable_id = original.id or str(uuid.uuid4())
reminder_msg = HumanMessage(
content=reminder_content,
id=stable_id,
additional_kwargs={"hide_from_ui": True, _DYNAMIC_CONTEXT_REMINDER_KEY: True},
)
user_msg = HumanMessage(
content=original.content,
id=f"{stable_id}__user",
name=original.name,
additional_kwargs=original.additional_kwargs,
)
return reminder_msg, user_msg
def _inject(self, state) -> dict | None:
messages = list(state.get("messages", []))
if not messages:
return None
current_date = datetime.now().strftime("%Y-%m-%d, %A")
last_date = _last_injected_date(messages)
logger.debug(
"DynamicContextMiddleware._inject: msg_count=%d last_date=%r current_date=%r",
len(messages),
last_date,
current_date,
)
if last_date is None:
# ── First turn: inject full reminder as a separate HumanMessage ─────
first_idx = next((i for i, m in enumerate(messages) if _is_user_injection_target(m)), None)
if first_idx is None:
return None
full_reminder = self._build_full_reminder()
logger.info(
"DynamicContextMiddleware: injecting full reminder (len=%d, has_memory=%s) into first HumanMessage id=%r",
len(full_reminder),
"<memory>" in full_reminder,
messages[first_idx].id,
)
reminder_msg, user_msg = self._make_reminder_and_user_messages(messages[first_idx], full_reminder)
return {"messages": [reminder_msg, user_msg]}
if last_date == current_date:
# ── Same day: nothing to do ──────────────────────────────────────────
return None
# ── Midnight crossed: inject date-update reminder as a separate HumanMessage ──
last_human_idx = next((i for i in reversed(range(len(messages))) if _is_user_injection_target(messages[i])), None)
if last_human_idx is None:
return None
reminder_msg, user_msg = self._make_reminder_and_user_messages(messages[last_human_idx], self._build_date_update_reminder())
logger.info("DynamicContextMiddleware: midnight crossing detected — injected date update before current turn")
return {"messages": [reminder_msg, user_msg]}
@override
def before_agent(self, state, runtime: Runtime) -> dict | None:
return self._inject(state)
@override
async def abefore_agent(self, state, runtime: Runtime) -> dict | None:
return self._inject(state)
@@ -4,7 +4,6 @@ from __future__ import annotations
import asyncio
import logging
import threading
import time
from collections.abc import Awaitable, Callable
from email.utils import parsedate_to_datetime
@@ -20,8 +19,6 @@ from langchain.agents.middleware.types import (
from langchain_core.messages import AIMessage
from langgraph.errors import GraphBubbleUp
from deerflow.config.app_config import AppConfig
logger = logging.getLogger(__name__)
_RETRIABLE_STATUS_CODES = {408, 409, 425, 429, 500, 502, 503, 504}
@@ -70,71 +67,6 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
retry_base_delay_ms: int = 1000
retry_cap_delay_ms: int = 8000
def __init__(self, *, app_config: AppConfig, **kwargs: Any) -> None:
super().__init__(**kwargs)
self.circuit_failure_threshold = app_config.circuit_breaker.failure_threshold
self.circuit_recovery_timeout_sec = app_config.circuit_breaker.recovery_timeout_sec
# Circuit Breaker state
self._circuit_lock = threading.Lock()
self._circuit_failure_count = 0
self._circuit_open_until = 0.0
self._circuit_state = "closed"
self._circuit_probe_in_flight = False
def _check_circuit(self) -> bool:
"""Returns True if circuit is OPEN (fast fail), False otherwise."""
with self._circuit_lock:
now = time.time()
if self._circuit_state == "open":
if now < self._circuit_open_until:
return True
self._circuit_state = "half_open"
self._circuit_probe_in_flight = False
if self._circuit_state == "half_open":
if self._circuit_probe_in_flight:
return True
self._circuit_probe_in_flight = True
return False
return False
def _record_success(self) -> None:
with self._circuit_lock:
if self._circuit_state != "closed" or self._circuit_failure_count > 0:
logger.info("Circuit breaker reset (Closed). LLM service recovered.")
self._circuit_failure_count = 0
self._circuit_open_until = 0.0
self._circuit_state = "closed"
self._circuit_probe_in_flight = False
def _record_failure(self) -> None:
with self._circuit_lock:
if self._circuit_state == "half_open":
self._circuit_open_until = time.time() + self.circuit_recovery_timeout_sec
self._circuit_state = "open"
self._circuit_probe_in_flight = False
logger.error(
"Circuit breaker probe failed (Open). Will probe again after %ds.",
self.circuit_recovery_timeout_sec,
)
return
self._circuit_failure_count += 1
if self._circuit_failure_count >= self.circuit_failure_threshold:
self._circuit_open_until = time.time() + self.circuit_recovery_timeout_sec
if self._circuit_state != "open":
self._circuit_state = "open"
self._circuit_probe_in_flight = False
logger.error(
"Circuit breaker tripped (Open). Threshold reached (%d). Will probe after %ds.",
self.circuit_failure_threshold,
self.circuit_recovery_timeout_sec,
)
def _classify_error(self, exc: BaseException) -> tuple[bool, str]:
detail = _extract_error_detail(exc)
lowered = detail.lower()
@@ -151,8 +83,6 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
"APITimeoutError",
"APIConnectionError",
"InternalServerError",
"ReadError", # httpx.ReadError: connection dropped mid-stream
"RemoteProtocolError", # httpx: server closed connection unexpectedly
}:
return True, "transient"
if status_code in _RETRIABLE_STATUS_CODES:
@@ -174,9 +104,6 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
reason_text = "provider is busy" if reason == "busy" else "provider request failed temporarily"
return f"LLM request retry {attempt}/{self.retry_max_attempts}: {reason_text}. Retrying in {seconds}s."
def _build_circuit_breaker_message(self) -> str:
return "The configured LLM provider is currently unavailable due to continuous failures. Circuit breaker is engaged to protect the system. Please wait a moment before trying again."
def _build_user_message(self, exc: BaseException, reason: str) -> str:
detail = _extract_error_detail(exc)
if reason == "quota":
@@ -211,20 +138,12 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
request: ModelRequest,
handler: Callable[[ModelRequest], ModelResponse],
) -> ModelCallResult:
if self._check_circuit():
return AIMessage(content=self._build_circuit_breaker_message())
attempt = 1
while True:
try:
response = handler(request)
self._record_success()
return response
return handler(request)
except GraphBubbleUp:
# Preserve LangGraph control-flow signals (interrupt/pause/resume).
with self._circuit_lock:
if self._circuit_state == "half_open":
self._circuit_probe_in_flight = False
raise
except Exception as exc:
retriable, reason = self._classify_error(exc)
@@ -247,8 +166,6 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
_extract_error_detail(exc),
exc_info=exc,
)
if retriable:
self._record_failure()
return AIMessage(content=self._build_user_message(exc, reason))
@override
@@ -257,20 +174,12 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
request: ModelRequest,
handler: Callable[[ModelRequest], Awaitable[ModelResponse]],
) -> ModelCallResult:
if self._check_circuit():
return AIMessage(content=self._build_circuit_breaker_message())
attempt = 1
while True:
try:
response = await handler(request)
self._record_success()
return response
return await handler(request)
except GraphBubbleUp:
# Preserve LangGraph control-flow signals (interrupt/pause/resume).
with self._circuit_lock:
if self._circuit_state == "half_open":
self._circuit_probe_in_flight = False
raise
except Exception as exc:
retriable, reason = self._classify_error(exc)
@@ -293,8 +202,6 @@ class LLMErrorHandlingMiddleware(AgentMiddleware[AgentState]):
_extract_error_detail(exc),
exc_info=exc,
)
if retriable:
self._record_failure()
return AIMessage(content=self._build_user_message(exc, reason))
@@ -12,23 +12,18 @@ Detection strategy:
response so the agent is forced to produce a final text answer.
"""
from __future__ import annotations
import hashlib
import json
import logging
import threading
from collections import OrderedDict, defaultdict
from copy import deepcopy
from typing import TYPE_CHECKING, override
from typing import override
from langchain.agents import AgentState
from langchain.agents.middleware import AgentMiddleware
from langchain_core.messages import HumanMessage
from langgraph.runtime import Runtime
if TYPE_CHECKING:
from deerflow.config.loop_detection_config import LoopDetectionConfig
logger = logging.getLogger(__name__)
# Defaults — can be overridden via constructor
@@ -36,8 +31,6 @@ _DEFAULT_WARN_THRESHOLD = 3 # inject warning after 3 identical calls
_DEFAULT_HARD_LIMIT = 5 # force-stop after 5 identical calls
_DEFAULT_WINDOW_SIZE = 20 # track last N tool calls
_DEFAULT_MAX_TRACKED_THREADS = 100 # LRU eviction limit
_DEFAULT_TOOL_FREQ_WARN = 30 # warn after 30 calls to the same tool type
_DEFAULT_TOOL_FREQ_HARD_LIMIT = 50 # force-stop after 50 calls to the same tool type
def _normalize_tool_call_args(raw_args: object) -> tuple[dict, str | None]:
@@ -132,21 +125,12 @@ def _hash_tool_calls(tool_calls: list[dict]) -> str:
_WARNING_MSG = "[LOOP DETECTED] You are repeating the same tool calls. Stop calling tools and produce your final answer now. If you cannot complete the task, summarize what you accomplished so far."
_TOOL_FREQ_WARNING_MSG = (
"[LOOP DETECTED] You have called {tool_name} {count} times without producing a final answer. Stop calling tools and produce your final answer now. If you cannot complete the task, summarize what you accomplished so far."
)
_HARD_STOP_MSG = "[FORCED STOP] Repeated tool calls exceeded the safety limit. Producing final answer with results collected so far."
_TOOL_FREQ_HARD_STOP_MSG = "[FORCED STOP] Tool {tool_name} called {count} times — exceeded the per-tool safety limit. Producing final answer with results collected so far."
class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
"""Detects and breaks repetitive tool call loops.
Threshold parameters are validated upstream by :class:`LoopDetectionConfig`;
construct via :meth:`from_config` to ensure values pass Pydantic validation.
Args:
warn_threshold: Number of identical tool call sets before injecting
a warning message. Default: 3.
@@ -156,20 +140,6 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
Default: 20.
max_tracked_threads: Maximum number of threads to track before
evicting the least recently used. Default: 100.
tool_freq_warn: Number of calls to the same tool *type* (regardless
of arguments) before injecting a frequency warning. Catches
cross-file read loops that hash-based detection misses.
Default: 30.
tool_freq_hard_limit: Number of calls to the same tool type before
forcing a stop. Default: 50.
tool_freq_overrides: Per-tool overrides for frequency thresholds,
keyed by tool name. Each value is a ``(warn, hard_limit)`` tuple
that replaces ``tool_freq_warn`` / ``tool_freq_hard_limit`` for
that specific tool. Tools not listed here fall back to the global
thresholds. Useful for raising limits on intentionally
high-frequency tools (e.g. ``bash`` in batch pipelines) without
weakening protection on all other tools. Default: ``None``
(no overrides).
"""
def __init__(
@@ -178,36 +148,16 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
hard_limit: int = _DEFAULT_HARD_LIMIT,
window_size: int = _DEFAULT_WINDOW_SIZE,
max_tracked_threads: int = _DEFAULT_MAX_TRACKED_THREADS,
tool_freq_warn: int = _DEFAULT_TOOL_FREQ_WARN,
tool_freq_hard_limit: int = _DEFAULT_TOOL_FREQ_HARD_LIMIT,
tool_freq_overrides: dict[str, tuple[int, int]] | None = None,
):
super().__init__()
self.warn_threshold = warn_threshold
self.hard_limit = hard_limit
self.window_size = window_size
self.max_tracked_threads = max_tracked_threads
self.tool_freq_warn = tool_freq_warn
self.tool_freq_hard_limit = tool_freq_hard_limit
self._tool_freq_overrides: dict[str, tuple[int, int]] = tool_freq_overrides or {}
self._lock = threading.Lock()
# Per-thread tracking using OrderedDict for LRU eviction
self._history: OrderedDict[str, list[str]] = OrderedDict()
self._warned: dict[str, set[str]] = defaultdict(set)
self._tool_freq: dict[str, dict[str, int]] = defaultdict(lambda: defaultdict(int))
self._tool_freq_warned: dict[str, set[str]] = defaultdict(set)
@classmethod
def from_config(cls, config: LoopDetectionConfig) -> LoopDetectionMiddleware:
"""Construct from a Pydantic-validated config, trusting its validation."""
return cls(
warn_threshold=config.warn_threshold,
hard_limit=config.hard_limit,
window_size=config.window_size,
max_tracked_threads=config.max_tracked_threads,
tool_freq_warn=config.tool_freq_warn,
tool_freq_hard_limit=config.tool_freq_hard_limit,
tool_freq_overrides={name: (o.warn, o.hard_limit) for name, o in config.tool_freq_overrides.items()},
)
def _get_thread_id(self, runtime: Runtime) -> str:
"""Extract thread_id from runtime context for per-thread tracking."""
@@ -224,19 +174,11 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
while len(self._history) > self.max_tracked_threads:
evicted_id, _ = self._history.popitem(last=False)
self._warned.pop(evicted_id, None)
self._tool_freq.pop(evicted_id, None)
self._tool_freq_warned.pop(evicted_id, None)
logger.debug("Evicted loop tracking for thread %s (LRU)", evicted_id)
def _track_and_check(self, state: AgentState, runtime: Runtime) -> tuple[str | None, bool]:
"""Track tool calls and check for loops.
Two detection layers:
1. **Hash-based** (existing): catches identical tool call sets.
2. **Frequency-based** (new): catches the same *tool type* being
called many times with varying arguments (e.g. ``read_file``
on 40 different files).
Returns:
(warning_message_or_none, should_hard_stop)
"""
@@ -271,7 +213,6 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
count = history.count(call_hash)
tool_names = [tc.get("name", "?") for tc in tool_calls]
# --- Layer 1: hash-based (identical call sets) ---
if count >= self.hard_limit:
logger.error(
"Loop hard limit reached — forcing stop",
@@ -298,45 +239,8 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
},
)
return _WARNING_MSG, False
# --- Layer 2: per-tool-type frequency ---
freq = self._tool_freq[thread_id]
for tc in tool_calls:
name = tc.get("name", "")
if not name:
continue
freq[name] += 1
tc_count = freq[name]
if name in self._tool_freq_overrides:
eff_warn, eff_hard = self._tool_freq_overrides[name]
else:
eff_warn, eff_hard = self.tool_freq_warn, self.tool_freq_hard_limit
if tc_count >= eff_hard:
logger.error(
"Tool frequency hard limit reached — forcing stop",
extra={
"thread_id": thread_id,
"tool_name": name,
"count": tc_count,
},
)
return _TOOL_FREQ_HARD_STOP_MSG.format(tool_name=name, count=tc_count), True
if tc_count >= eff_warn:
warned = self._tool_freq_warned[thread_id]
if name not in warned:
warned.add(name)
logger.warning(
"Tool frequency warning — too many calls to same tool type",
extra={
"thread_id": thread_id,
"tool_name": name,
"count": tc_count,
},
)
return _TOOL_FREQ_WARNING_MSG.format(tool_name=name, count=tc_count), False
# Warning already injected for this hash — suppress
return None, False
return None, False
@@ -357,26 +261,6 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
# Fallback: coerce unexpected types to str to avoid TypeError
return str(content) + f"\n\n{text}"
@staticmethod
def _build_hard_stop_update(last_msg, content: str | list) -> dict:
"""Clear tool-call metadata so forced-stop messages serialize as plain assistant text."""
update = {
"tool_calls": [],
"content": content,
}
additional_kwargs = dict(getattr(last_msg, "additional_kwargs", {}) or {})
for key in ("tool_calls", "function_call"):
additional_kwargs.pop(key, None)
update["additional_kwargs"] = additional_kwargs
response_metadata = deepcopy(getattr(last_msg, "response_metadata", {}) or {})
if response_metadata.get("finish_reason") == "tool_calls":
response_metadata["finish_reason"] = "stop"
update["response_metadata"] = response_metadata
return update
def _apply(self, state: AgentState, runtime: Runtime) -> dict | None:
warning, hard_stop = self._track_and_check(state, runtime)
@@ -384,35 +268,22 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
# Strip tool_calls from the last AIMessage to force text output
messages = state.get("messages", [])
last_msg = messages[-1]
content = self._append_text(last_msg.content, warning or _HARD_STOP_MSG)
stripped_msg = last_msg.model_copy(update=self._build_hard_stop_update(last_msg, content))
stripped_msg = last_msg.model_copy(
update={
"tool_calls": [],
"content": self._append_text(last_msg.content, _HARD_STOP_MSG),
}
)
return {"messages": [stripped_msg]}
if warning:
# WORKAROUND for v2.0-m1 — see #2724.
#
# Append the warning to the AIMessage content instead of
# injecting a separate HumanMessage. Inserting any non-tool
# message between an AIMessage(tool_calls=...) and its
# ToolMessage responses breaks OpenAI/Moonshot strict pairing
# validation ("tool_call_ids did not have response messages")
# because the tools node has not run yet at after_model time.
# tool_calls are preserved so the tools node still executes.
#
# This is a temporary mitigation: mutating an existing
# AIMessage to carry framework-authored text leaks loop-warning
# text into downstream consumers (MemoryMiddleware fact
# extraction, TitleMiddleware, telemetry, model replay) as if
# the model said it. The proper fix is to defer warning
# injection from after_model to wrap_model_call so every prior
# ToolMessage is already in the request — see RFC #2517 (which
# lists "loop intervention does not leave invalid
# tool-call/tool-message state" as acceptance criteria) and
# the prototype on `fix/loop-detection-tool-call-pairing`.
messages = state.get("messages", [])
last_msg = messages[-1]
patched_msg = last_msg.model_copy(update={"content": self._append_text(last_msg.content, warning)})
return {"messages": [patched_msg]}
# Inject as HumanMessage instead of SystemMessage to avoid
# Anthropic's "multiple non-consecutive system messages" error.
# Anthropic models require system messages only at the start of
# the conversation; injecting one mid-conversation crashes
# langchain_anthropic's _format_messages(). HumanMessage works
# with all providers. See #1299.
return {"messages": [HumanMessage(content=warning)]}
return None
@@ -430,10 +301,6 @@ class LoopDetectionMiddleware(AgentMiddleware[AgentState]):
if thread_id:
self._history.pop(thread_id, None)
self._warned.pop(thread_id, None)
self._tool_freq.pop(thread_id, None)
self._tool_freq_warned.pop(thread_id, None)
else:
self._history.clear()
self._warned.clear()
self._tool_freq.clear()
self._tool_freq_warned.clear()

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