* chore: Bump @modelcontextprotocol/sdk to version 1.24.3
* refactor: Update resource handling in MCP parsers and types
- Simplified resource text checks in `parseAsString` and `formatToolContent` functions to ensure proper existence checks.
- Removed unnecessary resource name and description handling to streamline output.
- Updated type definitions in `index.ts` to align with the new structure from `@modelcontextprotocol/sdk`, enhancing type safety and clarity.
- Added `logo_uri` and `tos_uri` properties to `MCPOAuthHandler` for improved OAuth metadata support.
* refactor: Update custom endpoint configurations and type definitions
- Removed unused type imports and streamlined the custom parameters handling in `loadCustomEndpointsConfig`.
- Adjusted the `TCustomEndpointsConfig` type to utilize `TConfig` instead of `TEndpoint`, enhancing type accuracy.
- Made the endpoint schema optional in the configuration to improve flexibility.
* fix: Implement token cleanup and error handling for invalid OAuth tokens
- Added `cleanupInvalidTokens` method to remove invalid OAuth tokens from storage when detected.
- Introduced `isInvalidTokenError` method to identify errors indicating revoked or expired tokens.
- Integrated token cleanup logic into the connection attempt process to ensure fresh OAuth flow on invalid token detection.
* feat: Add revoke OAuth functionality in Server Initialization
- Introduced a new button to revoke OAuth for servers, enhancing user control over OAuth permissions.
- Updated the `useMCPServerManager` hook to include a standalone `revokeOAuthForServer` function for managing OAuth revocation.
- Adjusted the UI to conditionally render the revoke button based on server requirements.
* fix: error handling for authentication in MCPConnection
- Updated the error handling logic in MCPConnection to better identify various authentication error indicators, including 401 status, invalid tokens, and unauthorized messages.
- Removed the deprecated cleanupInvalidTokens method and integrated its logic into the connection attempt process for improved clarity and efficiency.
- Adjusted the MCPConnectionFactory to streamline the connection attempt process and handle OAuth errors more effectively.
* refactor: Update button rendering in ServerInitializationSection
- Removed the existing button for server initialization and replaced it with a new button implementation, maintaining the same functionality.
- Ensured consistent rendering of the button within the component's layout.
* chore: update resource type usage in parsers.test.ts
* 🔒 feat: Implement idempotency check for OAuth flow completion
- Added a check to prevent duplicate token exchanges if the OAuth flow has already been completed.
- Updated the OAuth callback route to redirect appropriately when a completed flow is detected.
- Refactored token storage logic to use original flow state credentials instead of updated ones.
- Enhanced tests to cover the new idempotency behavior and ensure correct handling of OAuth flow states.
* chore: add back scope for logging
* refactor: Add isFlowStale method to FlowStateManager for stale flow detection
- Implemented a new method to check if a flow is stale based on its age and status.
- Updated MCPConnectionFactory to utilize the isFlowStale method for cleaning up stale OAuth flows.
- Enhanced logging to provide more informative messages regarding flow status and age during cleanup.
* test: Add unit tests for isFlowStale method in FlowStateManager
- Implemented comprehensive tests for the isFlowStale method to verify its behavior across various flow statuses (PENDING, COMPLETED, FAILED) and age thresholds.
- Ensured correct handling of edge cases, including flows with missing timestamps and custom stale thresholds.
- Enhanced test coverage to validate the logic for determining flow staleness based on createdAt, completedAt, and failedAt timestamps.
* refactor: Restructure MCP registry system with caching
- Split MCPServersRegistry into modular components:
- MCPServerInspector: handles server inspection and health checks
- MCPServersInitializer: manages server initialization logic
- MCPServersRegistry: simplified registry coordination
- Add distributed caching layer:
- ServerConfigsCacheRedis: Redis-backed configuration cache
- ServerConfigsCacheInMemory: in-memory fallback cache
- RegistryStatusCache: distributed leader election state
- Add promise utilities (withTimeout) replacing Promise.race patterns
- Add comprehensive cache integration tests for all cache implementations
- Remove unused MCPManager.getAllToolFunctions method
* fix: Update OAuth flow to include user-specific headers
* chore: Update Jest configuration to ignore additional test files
- Added patterns to ignore files ending with .helper.ts and .helper.d.ts in testPathIgnorePatterns for cleaner test runs.
* fix: oauth headers in callback
* chore: Update Jest testPathIgnorePatterns to exclude helper files
- Modified testPathIgnorePatterns in package.json to ignore files ending with .helper.ts and .helper.d.ts for cleaner test execution.
* ci: update test mocks
---------
Co-authored-by: Danny Avila <danny@librechat.ai>
* feat: Add conversation ID support to custom endpoint headers
- Add LIBRECHAT_CONVERSATION_ID to customUserVars when provided
- Pass conversation ID to header resolution for dynamic headers
- Add comprehensive test coverage
Enables custom endpoints to access conversation context using {{LIBRECHAT_CONVERSATION_ID}} placeholder.
* fix: filter out unresolved placeholders from headers (thanks @MrunmayS)
* feat: add support for request body placeholders in custom endpoint headers
- Add {{LIBRECHAT_BODY_*}} placeholders for conversationId, parentMessageId, messageId
- Update tests to reflect new body placeholder functionality
* refactor resolveHeaders
* style: minor styling cleanup
* fix: type error in unit test
* feat: add body to other endpoints
* feat: add body for mcp tool calls
* chore: remove changes that unnecessarily increase scope after clarification of requirements
* refactor: move http.ts to packages/api and have RequestBody intersect with Express request body
* refactor: processMCPEnv now uses single object argument pattern
* refactor: update processMCPEnv to use 'options' parameter and align types across MCP connection classes
* feat: enhance MCP connection handling with dynamic request headers to pass request body fields
---------
Co-authored-by: Gopal Sharma <gopalsharma@gopal.sharma1>
Co-authored-by: s10gopal <36487439+s10gopal@users.noreply.github.com>
Co-authored-by: Dustin Healy <dustinhealy1@gmail.com>
* chore: Remove eslint-plugin-perfectionist from dependencies
* 🚌 fix: MCP Runtime Errors while Initializing
* chore: Bump @librechat/api version to 1.3.1
* chore: import order
* chore: import order
