The SQLCipher engine used a dummy sqlite:// URL with a creator function,
which caused SQLAlchemy to auto-select SingletonThreadPool. This pool
non-deterministically closes in-use connections when thread count exceeds
pool_size (default 5), leading to use-after-free segfaults (exit code 139)
in the native sqlcipher3 C library during multi-threaded operations like
user signup.
Now defaults to NullPool (each operation creates/closes its own connection)
for maximum safety with the native C extension. Also respects the
DATABASE_POOL_SIZE setting: if explicitly set >0, QueuePool is used with
the configured pool parameters, matching the behavior of other DB paths.
Fixes#22258
Backend emits terminal events for write_file, replace_file_content,
and run_command. Frontend showFileNavDir subscriber uses startsWith
path matching to smartly refresh only when the event is relevant:
- write_file/replace_file_content: refresh if path is in current view
- run_command: always refresh (uses root '/' which matches everything)
- Also adds copy-to-clipboard button and code preview full-height fix
* fix: enforce ownership check on user-memory collection queries
fix: enforce ownership check on user-memory collection queries
Prevent authenticated users from querying other users' memory
collections via the /query/doc and /query/collection endpoints.
A new _validate_collection_access helper rejects requests for
user-memory-{UUID} collections where the UUID does not match
the requesting user. Admins bypass the check.
* Update retrieval.py
* Update retrieval.py
- Use os.path.basename() for filename sanitization instead of fragile blocklist
- Replace ERROR_MESSAGES.DEFAULT(e) with generic error message in both except blocks to prevent CWE-209 information disclosure
- Server-side logging via log.exception(e) is preserved for debugging
Three improvements to the socket event emitter hot path (when realtime chat save is enabled):
1. Wrap all synchronous Chats.* DB calls in asyncio.to_thread() to avoid blocking the event loop during streaming. With N concurrent users, sync DB calls serialize all writes and block socket event delivery.
2. Only persist final (done=True) status events to DB. Intermediate statuses (tool calling progress, web search progress, etc.) are ephemeral UI-only data already delivered via socket — writing every one to DB is unnecessary I/O.
3. Convert if/if/if chain to if/elif since event types are mutually exclusive, avoiding unnecessary string comparisons after a match.
Classic298