* update MCP Tests
* [autofix.ci] apply automated fixes
* Update util.py
* [autofix.ci] apply automated fixes
* Refactor MCP session manager for better configurability and cleanup (#9176)
* Add log rotation and header validation features
Introduces support for log rotation via the LANGFLOW_LOG_ROTATION environment variable and CLI/config options, with documentation updates. Adds header validation and sanitization for MCP connections, ensuring RFC 7230 compliance and security. Frontend and backend now support passing custom headers for MCP servers. Includes extensive new and updated unit tests for header handling, MCP utilities, and log rotation.
* Add unit tests for MCP utilities and update disconnect logic
Added comprehensive unit tests for MCP utility functions, session management, header validation, and client classes in test_mcp_util.py. Updated MCPStdioClient and MCPSseClient disconnect methods for clearer session cleanup logic. Refactored test_mcp_component.py to remove redundant and duplicated tests, consolidating coverage in the new test suite.
* [autofix.ci] apply automated fixes
* Update test_mcp_memory_leak.py
* Update util.py
* Improve session and process cleanup in MCP
Added explicit session closing and a short delay to allow subprocess transports to clean up, reducing warnings and potential memory leaks. Test code now waits longer after cleanup and increases process termination timeout to ensure all child processes are properly terminated.
* Improve session and process cleanup logic
Enhanced MCPSessionManager to handle both async and sync session closing methods, using inspection to determine awaitability. Updated memory leak test to more robustly wait for and clean up child processes, logging process states and handling termination more gracefully.
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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>
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