This pull request introduces significant improvements to the WebSocket handling traits, focusing on enhanced error handling, validation, and logging for both frame and message processing. The changes make the codebase more robust against malformed data, oversized payloads, and client communication errors, while also improving observability for debugging and production monitoring.

WebSocket Frame Handling Enhancements (HandlesWebSocketFrames)

Validation and Error Handling:

• Added strict validation for opcodes and payload sizes, including a maximum payload limit (16MB) and checks for incomplete or invalid frame headers and lengths. Errors are logged with detailed context. [1] [2] [3] [4] [5]
• Frame decoding and encoding now catch and log exceptions, preventing silent failures and improving resilience. [1] [2] [3]

Logging and Debugging:

• Introduced logFrameDebug and logFrameError helper methods for consistent logging of frame processing events and errors, including summaries after decoding and details for encoded frames. [1] [2] [3]

API Improvements:

• sendPong now accepts an optional payload and provides error handling and logging for failed frame sends.
• Added isValidOpcode method to centralize opcode validation logic.

WebSocket Message Handling Enhancements (HandlesWebSocketMessages)

Validation and Error Handling:

• Incoming messages are validated for non-empty payload, maximum allowed size (64KB), valid JSON structure, and correct event/data fields. Validation errors are sent back to clients and logged.
• Added robust error reporting to clients via sendErrorMessage, including timestamp and detailed logging for failures to send messages.

API and Utility Methods:

• Added validateMessageStructure, createMessage, and sendMessage methods for structured message creation, validation, and sending to clients, with logging for both success and failure cases.

Logging and Observability:

• Improved debug logging for message processing, including event names, client IDs, and data details.

These changes collectively make the WebSocket server more robust, easier to debug, and safer against malformed or malicious input.