mirror of
https://github.com/bytedance/deer-flow.git
synced 2026-05-21 15:36:48 +00:00
feat(auth): wire auth end-to-end (middleware + frontend replacement)
Backend: - Port auth_middleware, csrf_middleware, langgraph_auth, routers/auth - Port authz decorator (owner_filter_key defaults to 'owner_id') - Merge app.py: register AuthMiddleware + CSRFMiddleware + CORS, add _ensure_admin_user lifespan hook, _migrate_orphaned_threads helper, register auth router - Merge deps.py: add get_local_provider, get_current_user_from_request, get_optional_user_from_request; keep get_current_user as thin str|None adapter for feedback router - langgraph.json: add auth path pointing to langgraph_auth.py:auth - Rename metadata['user_id'] -> metadata['owner_id'] in langgraph_auth (both metadata write and LangGraph filter dict) + test fixtures Frontend: - Delete better-auth library and api catch-all route - Remove better-auth npm dependency and env vars (BETTER_AUTH_SECRET, BETTER_AUTH_GITHUB_*) from env.js - Port frontend/src/core/auth/* (AuthProvider, gateway-config, proxy-policy, server-side getServerSideUser, types) - Port frontend/src/core/api/fetcher.ts - Port (auth)/layout, (auth)/login, (auth)/setup pages - Rewrite workspace/layout.tsx as server component that calls getServerSideUser and wraps in AuthProvider - Port workspace/workspace-content.tsx for the client-side sidebar logic Tests: - Port 5 auth test files (test_auth, test_auth_middleware, test_auth_type_system, test_ensure_admin, test_langgraph_auth) - 176 auth tests PASS After this commit: login/logout/registration flow works, but persistence layer does not yet filter by owner_id. Commit 4 closes that gap.
This commit is contained in:
greatmengqi
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"""Authorization decorators and context for DeerFlow.
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Inspired by LangGraph Auth system: https://github.com/langchain-ai/langgraph/blob/main/libs/sdk-py/langgraph_sdk/auth/__init__.py
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**Usage:**
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1. Use ``@require_auth`` on routes that need authentication
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2. Use ``@require_permission("resource", "action", filter_key=...)`` for permission checks
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3. The decorator chain processes from bottom to top
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**Example:**
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@router.get("/{thread_id}")
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@require_auth
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@require_permission("threads", "read", owner_check=True)
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async def get_thread(thread_id: str, request: Request):
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# User is authenticated and has threads:read permission
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...
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**Permission Model:**
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- threads:read - View thread
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- threads:write - Create/update thread
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- threads:delete - Delete thread
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- runs:create - Run agent
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- runs:read - View run
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- runs:cancel - Cancel run
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"""
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from __future__ import annotations
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import functools
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from collections.abc import Callable
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from typing import TYPE_CHECKING, Any, ParamSpec, TypeVar
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from fastapi import HTTPException, Request
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if TYPE_CHECKING:
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from app.gateway.auth.models import User
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P = ParamSpec("P")
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T = TypeVar("T")
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# Permission constants
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class Permissions:
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"""Permission constants for resource:action format."""
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# Threads
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THREADS_READ = "threads:read"
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THREADS_WRITE = "threads:write"
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THREADS_DELETE = "threads:delete"
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# Runs
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RUNS_CREATE = "runs:create"
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RUNS_READ = "runs:read"
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RUNS_CANCEL = "runs:cancel"
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class AuthContext:
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"""Authentication context for the current request.
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Stored in request.state.auth after require_auth decoration.
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Attributes:
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user: The authenticated user, or None if anonymous
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permissions: List of permission strings (e.g., "threads:read")
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"""
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__slots__ = ("user", "permissions")
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def __init__(self, user: User | None = None, permissions: list[str] | None = None):
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self.user = user
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self.permissions = permissions or []
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@property
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def is_authenticated(self) -> bool:
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"""Check if user is authenticated."""
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return self.user is not None
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def has_permission(self, resource: str, action: str) -> bool:
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"""Check if context has permission for resource:action.
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Args:
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resource: Resource name (e.g., "threads")
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action: Action name (e.g., "read")
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Returns:
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True if user has permission
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"""
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permission = f"{resource}:{action}"
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return permission in self.permissions
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def require_user(self) -> User:
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"""Get user or raise 401.
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Raises:
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HTTPException 401 if not authenticated
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"""
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if not self.user:
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raise HTTPException(status_code=401, detail="Authentication required")
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return self.user
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def get_auth_context(request: Request) -> AuthContext | None:
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"""Get AuthContext from request state."""
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return getattr(request.state, "auth", None)
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_ALL_PERMISSIONS: list[str] = [
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Permissions.THREADS_READ,
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Permissions.THREADS_WRITE,
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Permissions.THREADS_DELETE,
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Permissions.RUNS_CREATE,
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Permissions.RUNS_READ,
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Permissions.RUNS_CANCEL,
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]
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async def _authenticate(request: Request) -> AuthContext:
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"""Authenticate request and return AuthContext.
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Delegates to deps.get_optional_user_from_request() for the JWT→User pipeline.
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Returns AuthContext with user=None for anonymous requests.
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"""
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from app.gateway.deps import get_optional_user_from_request
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user = await get_optional_user_from_request(request)
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if user is None:
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return AuthContext(user=None, permissions=[])
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# In future, permissions could be stored in user record
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return AuthContext(user=user, permissions=_ALL_PERMISSIONS)
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def require_auth[**P, T](func: Callable[P, T]) -> Callable[P, T]:
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"""Decorator that authenticates the request and sets AuthContext.
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Must be placed ABOVE other decorators (executes after them).
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Usage:
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@router.get("/{thread_id}")
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@require_auth # Bottom decorator (executes first after permission check)
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@require_permission("threads", "read")
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async def get_thread(thread_id: str, request: Request):
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auth: AuthContext = request.state.auth
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...
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Raises:
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ValueError: If 'request' parameter is missing
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"""
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@functools.wraps(func)
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async def wrapper(*args: Any, **kwargs: Any) -> Any:
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request = kwargs.get("request")
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if request is None:
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raise ValueError("require_auth decorator requires 'request' parameter")
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# Authenticate and set context
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auth_context = await _authenticate(request)
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request.state.auth = auth_context
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return await func(*args, **kwargs)
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return wrapper
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def require_permission(
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resource: str,
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action: str,
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owner_check: bool = False,
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owner_filter_key: str = "owner_id",
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inject_record: bool = False,
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) -> Callable[[Callable[P, T]], Callable[P, T]]:
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"""Decorator that checks permission for resource:action.
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Must be used AFTER @require_auth.
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Args:
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resource: Resource name (e.g., "threads", "runs")
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action: Action name (e.g., "read", "write", "delete")
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owner_check: If True, validates that the current user owns the resource.
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Requires 'thread_id' path parameter and performs ownership check.
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owner_filter_key: Field name for ownership filter (default: "owner_id")
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inject_record: If True and owner_check is True, injects the thread record
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into kwargs['thread_record'] for use in the handler.
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Usage:
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# Simple permission check
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@require_permission("threads", "read")
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async def get_thread(thread_id: str, request: Request):
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...
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# With ownership check (for /threads/{thread_id} endpoints)
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@require_permission("threads", "delete", owner_check=True)
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async def delete_thread(thread_id: str, request: Request):
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...
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# With ownership check and record injection
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@require_permission("threads", "delete", owner_check=True, inject_record=True)
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async def delete_thread(thread_id: str, request: Request, thread_record: dict = None):
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# thread_record is injected if found
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...
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Raises:
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HTTPException 401: If authentication required but user is anonymous
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HTTPException 403: If user lacks permission
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HTTPException 404: If owner_check=True but user doesn't own the thread
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ValueError: If owner_check=True but 'thread_id' parameter is missing
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"""
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def decorator(func: Callable[P, T]) -> Callable[P, T]:
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@functools.wraps(func)
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async def wrapper(*args: Any, **kwargs: Any) -> Any:
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request = kwargs.get("request")
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if request is None:
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raise ValueError("require_permission decorator requires 'request' parameter")
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auth: AuthContext = getattr(request.state, "auth", None)
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if auth is None:
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auth = await _authenticate(request)
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request.state.auth = auth
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if not auth.is_authenticated:
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raise HTTPException(status_code=401, detail="Authentication required")
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# Check permission
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if not auth.has_permission(resource, action):
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raise HTTPException(
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status_code=403,
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detail=f"Permission denied: {resource}:{action}",
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)
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# Owner check for thread-specific resources
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if owner_check:
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thread_id = kwargs.get("thread_id")
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if thread_id is None:
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raise ValueError("require_permission with owner_check=True requires 'thread_id' parameter")
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# Get thread and verify ownership
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from app.gateway.routers.threads import _store_get, get_store
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store = get_store(request)
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if store is not None:
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record = await _store_get(store, thread_id)
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if record:
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owner_id = record.get("metadata", {}).get(owner_filter_key)
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if owner_id and owner_id != str(auth.user.id):
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raise HTTPException(
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status_code=404,
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detail=f"Thread {thread_id} not found",
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)
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# Inject record if requested
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if inject_record:
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kwargs["thread_record"] = record
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return await func(*args, **kwargs)
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return wrapper
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return decorator
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