Clear _logs_since_flush before iterating callbacks by capturing logs
into a local variable first. This prevents duplicate logs if a
callback raises an exception, since the instance variable is already
cleared before any callback runs.
Add test to verify logs are cleared even when callbacks raise.
Move _logs_since_flush reset outside the callback loop so all
registered callbacks receive the same log data instead of only
the first callback getting logs while subsequent ones get an empty list.
Add test to verify multiple callbacks all receive the same logs.
When running ComfyUI in API mode on Windows, print() statements from
custom nodes can crash with "OSError: [Errno 22] Invalid argument"
during flush. This occurs because piped/redirected stdout streams on
Windows may fail to flush even after successful writes.
This fix catches OSError with errno 22 (EINVAL) specifically in
LogInterceptor.flush(), allowing the flush callbacks to still execute.
The error is safe to ignore since write() already succeeded.
Fixes#11367
* feat(security): add System User protection with `__` prefix
Add protected namespace for custom nodes to store sensitive data
(API keys, licenses) that cannot be accessed via HTTP endpoints.
Key changes:
- New API: get_system_user_directory() for internal access
- New API: get_public_user_directory() with structural blocking
- 3-layer defense: header validation, path blocking, creation prevention
- 54 tests covering security, edge cases, and backward compatibility
System Users use `__` prefix (e.g., __system, __cache) following
Python's private member convention. They exist in user_directory/
but are completely blocked from /userdata HTTP endpoints.
* style: remove unused imports
Adds installed and required workflow templates version information to the
/system_stats endpoint, allowing the frontend to detect and notify users
when their templates package is outdated.
- Add get_installed_templates_version() and get_required_templates_version()
methods to FrontendManager
- Include templates version info in system_stats response
- Add comprehensive unit tests for the new functionality
* Added the parameter required_frontend_version in the /system_stats api response
* Update server.py
* Created a function get_required_frontend_version and wrote tests for it
* Refactored the function to return currently installed frontend pacakage version
* Moved required_frontend to a new function and imported that in server.py
* Corrected test cases using mocking techniques
* Corrected files to comply with ruff formatting
* Add frontend manager
* Add tests
* nit
* Add unit test to github CI
* Fix path
* nit
* ignore
* Add logging
* Install test deps
* Remove 'stable' keyword support
* Update test
* Add web-root arg
* Rename web-root to front-end-root
* Add test on non-exist version number
* Use repo owner/name to replace hard coded provider list
* Inline cmd args
* nit
* Fix unit test
