github.com/fishBone000/socksy5

SOCKSY5

Socksy5 provides a Golang SOCKS5 middle layer that handle communication with clients for you, but let you to do decision on what to do with the handshakes and requests.
Yes, the repo name and package name differ. They used to be the same, but the repo name was changed to fit Go's package search engine.

What the middle layer does:

• Reading requests and sending replies
• Wrap requests and provide methods for accepting and rejecting them
• Attach connection from external code for CONNECT, BIND requests
• Emitting different types of log entries
• Support multi-homed BINDing and UDP ASSOCIATEing

What the middle layer requires you to do:

• Decision on accepting / rejecting incoming client handshake and requests
• Select which auth method and subnegotiation to use (supports custom)
• Dial and pass outbound connections to the middle layer (CONNECT)
• Listen for connections from application servers (BIND)
• UDP relaying (UDP ASSOCIATE)
• Writing logs to the console or files

If you want to make a SOCKS5 server fast, read on.

Some other implementation in this module:

• Func Connect for CONNECT and outbound dialing.
• Binder for BIND and listening for incoming connection.
• Associator for UDP ASSOCIATE and UDP relaying.
• NoAuthSubneg for NO AUTHENTICATION subnegotiation.
• UsrPwdSubneg for USERNAME/PASSWORD subnegotiation.
• NoCap for no encapsulation/decapsulation.

For details, see the Go reference.

Note

• Issues, suggestions and PRs welcome
• I will be busy for months, expect less maintanence.
• It's still in unstable release, expect:
  • Weird error and log util design
    • If you have better ideas, submit issues!