Websocket to TCP Proxy

This is a simple Websocket to TCP proxy, built on libuv.

Building

 	git clone [email protected]:FloydZ/ws-tcp-proxy
    cd ws-tcp-proxy
    mkdir build
	cd build
	cmake ..
	make -j1

Running

The server accepts the following arguments:

    ./ws-tcp-proxy --local 0.0.0.0:8080 --remote 127.0.0.1:5000

Features

• supports parsing of all websocket control and data frames from a stream
• evented io handled by libuv
• does not support HTTP beyond what is required for performing a websocket handshake
• builds on mac
• at startup only consumes 600KB of RAM on linux
• very small overhead per connection (need to measure)
• handshake performed using joyent http-parser which is very low overhead and fast
• only supports http://tools.ietf.org/html/rfc6455. It Is not backwards compatible
• proxies websocket to a remote host/port
• does not do any utf8 decoding for text frames. chunks of frame payloads are returned as pointers to char buffers whether they are binary or text

Future

• support pausing of parser
• plan to add SSL support
• !!!!handle overflows on headers and header sizes!!!!
• allow user definable limits on headers and header sizes
• allow configuration of tcp backlog, nodelay, keepalive, connection limits, bandwidth throttling,
• daemonization
• websocket extension support
• older websocket version support (include base64)
• higher level api to deal with control frames and fragmented messages
• possibly add support for static file serving and http user modules
• tests
• benchmarks
• improve the make file to build and run tests
• clean and small websocket api for servers and clients

Credits

This project is inspired/copied from ws-uv (https://github.com/billywhizz/ws-uv.git)