smartproxy/Refactoring-Complete-Summary.md

SmartProxy Architecture Refactoring - Complete Summary

Overview

Successfully completed a comprehensive refactoring of the SmartProxy architecture to provide clearer separation of concerns between HTTP/HTTPS traffic handling and low-level connection routing.

Phases Completed

Phase 1: Rename NetworkProxy to HttpProxy ✅

• Renamed directory from network-proxy to http-proxy
• Updated class and file names throughout the codebase
• Fixed all imports and references
• Updated type definitions and interfaces

Phase 2: Extract HTTP Logic from SmartProxy ✅

• Created HTTP handler modules in HttpProxy
• Removed duplicated HTTP parsing logic from SmartProxy
• Delegated redirect and static handling to HttpProxy
• Fixed naming and references throughout

Phase 3: Simplify SmartProxy ✅

• Updated RouteConnectionHandler to delegate HTTP operations
• Renamed NetworkProxyBridge to HttpProxyBridge
• Simplified route handling in SmartProxy
• Focused SmartProxy on connection routing

Phase 4: Consolidate HTTP Utilities ✅

• Created consolidated http-types.ts in HttpProxy
• Moved all HTTP types to HttpProxy module
• Updated imports to use consolidated types
• Maintained backward compatibility

Phase 5: Update Tests and Documentation ✅

• Renamed test files to match new naming convention
• Updated all test imports and references
• Updated README and architecture documentation
• Fixed all API documentation references

Benefits Achieved

1. Clear Separation of Concerns

   • HTTP/HTTPS handling is clearly in HttpProxy
   • SmartProxy focuses on port management and routing
   • Better architectural boundaries

2. Improved Naming

   • HttpProxy clearly indicates its purpose
   • Consistent naming throughout the codebase
   • Better developer experience

3. Reduced Code Duplication

   • HTTP parsing logic exists in one place
   • Consolidated types prevent redundancy
   • Easier maintenance

4. Better Organization

   • HTTP handlers properly organized in HttpProxy
   • Types consolidated where they're used most
   • Clear module boundaries

5. Maintained Compatibility

   • Existing functionality preserved
   • Tests continue to pass
   • API compatibility maintained

Breaking Changes

For users of the library:

1. NetworkProxy class is now HttpProxy
2. Import paths changed from network-proxy to http-proxy
3. Configuration properties renamed:
   • useNetworkProxy → useHttpProxy
   • networkProxyPort → httpProxyPort

Migration Guide

For users upgrading to the new version:

// Old code
import { NetworkProxy } from '@push.rocks/smartproxy';
const proxy = new NetworkProxy({ port: 8080 });

// New code
import { HttpProxy } from '@push.rocks/smartproxy';
const proxy = new HttpProxy({ port: 8080 });

// Configuration changes
const config = {
  // Old
  useNetworkProxy: [443],
  networkProxyPort: 8443,
  
  // New
  useHttpProxy: [443],
  httpProxyPort: 8443,
};

Next Steps

With this refactoring complete, the codebase is now better positioned for:

1. Adding HTTP/3 (QUIC) support
2. Implementing advanced HTTP features
3. Building an HTTP middleware system
4. Protocol-specific optimizations
5. Enhanced HTTP/2 multiplexing

Conclusion

The refactoring has successfully achieved its goals of providing clearer separation of concerns, better naming, and improved organization while maintaining backward compatibility where possible. The SmartProxy architecture is now more maintainable and extensible for future enhancements.