Claude
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1dcb357313
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Implement comprehensive fixes for remaining critical issues
This commit addresses the remaining high-priority issues identified in the
comprehensive codebase analysis, implementing proper notification systems,
error handling, input validation, and race condition fixes.
1. CRITICAL: Implement Stripe webhook notifications
- Created new NotificationService for centralized notification handling
- Supports both in-app notifications and email queuing
- Implemented all 4 missing webhook notifications:
* Subscription downgrade notifications
* Payment success receipts
* Payment failure alerts with recovery action
* Trial ending reminders with days remaining calculation
- Notifications stored in database and emitted via Socket.io
- File: src/backend/services/notificationService.js (NEW)
- Updated: src/backend/routes/webhooks/stripeWebhook.js
2. HIGH: Add comprehensive error handling to socket event handlers
- Wrapped all socket event handlers in try-catch blocks
- Emit error events back to clients when operations fail
- Prevents server crashes from unhandled socket errors
- Provides user feedback for failed socket operations
- File: src/backend/services/socketService.js
3. HIGH: Fix race condition in Chat component
- Added activeConversationRef to track current conversation
- Check conversation ID before updating messages after async load
- Clear messages immediately when switching conversations
- Prevents stale messages from appearing when rapidly switching
- File: src/frontend/components/Chat/Chat.jsx
4. HIGH: Add input validation to messaging service
- Validate userId and conversationId are valid strings
- Ensure message content is not empty and under 10K chars
- Validate contentType against allowed types
- Validate metadata structure
- Provides clear error messages for invalid input
- File: src/backend/services/messagingService.js
5. MEDIUM: Replace hardcoded URLs with environment variables
- Updated AuthContext to use VITE_API_URL env variable
- Maintains localhost fallback for development
- File: src/frontend/contexts/AuthContext.jsx
6. Documentation: Update .env.example
- Added FRONTEND_URL configuration
- Documented ALLOW_DEV_BYPASS security flag
- Added critical warnings for TURN server configuration
- Added Stripe configuration variables
- File: .env.example
These fixes significantly improve:
- User experience (notifications for all payment events)
- System reliability (proper error handling, race condition fixes)
- Security (input validation prevents malicious input)
- Maintainability (proper environment configuration)
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2026-01-19 06:41:28 +00:00 |
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