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fix(history): strip base64 image data from REST endpoint responses (#3535)

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ViewImageMiddleware persists full base64 image payloads in hide_from_ui
human messages inside checkpoints. All REST endpoints that returned
serialize_channel_values(channel_values) sent these multi-megabyte
payloads to the frontend, freezing the UI on threads with images.

Add strip_data_url_image_blocks() to remove data:-scheme image_url
content blocks from hide_from_ui messages, and
serialize_channel_values_for_api() as a convenience wrapper used by all
six affected call sites across threads, runs, and thread_runs routers.
SSE streaming is unaffected (still uses serialize_channel_values).

Fixes #3496
This commit is contained in:
hataa
2026-06-13 08:58:19 +08:00
committed by GitHub
parent 839fa99237
commit 094296440f
6 changed files with 230 additions and 10 deletions
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backend/packages/harness/deerflow/runtime/__init__.py
+3 -1
View File
@@ -7,7 +7,7 @@ directly from ``deerflow.runtime``.
from .checkpointer import checkpointer_context, get_checkpointer, make_checkpointer, reset_checkpointer
from .runs import ConflictError, DisconnectMode, RunContext, RunManager, RunRecord, RunStatus, UnsupportedStrategyError, run_agent
from .serialization import serialize, serialize_channel_values, serialize_lc_object, serialize_messages_tuple
from .serialization import serialize, serialize_channel_values, serialize_channel_values_for_api, serialize_lc_object, serialize_messages_tuple, strip_data_url_image_blocks
from .store import get_store, make_store, reset_store, store_context
from .stream_bridge import END_SENTINEL, HEARTBEAT_SENTINEL, MemoryStreamBridge, StreamBridge, StreamEvent, make_stream_bridge
@@ -29,8 +29,10 @@ __all__ = [
# serialization
"serialize",
"serialize_channel_values",
"serialize_channel_values_for_api",
"serialize_lc_object",
"serialize_messages_tuple",
"strip_data_url_image_blocks",
# store
"get_store",
"make_store",