# go-socks5 

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Provides the `socks5` package that implements a [SOCKS5](http://en.wikipedia.org/wiki/SOCKS).
SOCKS (Secure Sockets) is used to route traffic between a client and server through
an intermediate proxy layer. This can be used to bypass firewalls or NATs.

### Feature


The package has the following features:
- Support client(**under ccsocks5 directory**) and server(**under root directory**)
- Support TCP/UDP and IPv4/IPv6
- Unit tests
- "No Auth" mode
- User/Password authentication optional user addr limit
- Support for the CONNECT command
- Support for the ASSOCIATE command
- Rules to do granular filtering of commands
- Custom DNS resolution
- Custom goroutine pool
- buffer pool design and optional custom buffer pool
- Custom logger

### TODO

The package still needs the following:
- Support for the BIND command

### Installation

Use go get.
```bash
    go get github.com/thinkgos/go-socks5
```

Then import the socks5 server package into your own code.

```bash
    import "github.com/thinkgos/go-socks5"
```

or  
 
import the socks5 client package into your own code.

```bash
    import "github.com/thinkgos/go-socks5/ccsocks5"
```

### Example

Below is a simple example of usage, more see [example](https://github.com/thinkgos/go-socks5/tree/master/_example)


```go
    // Server: 

    // Create a SOCKS5 server
    server := socks5.NewServer()
    
    // Create SOCKS5 proxy on localhost port 8000
    if err := server.ListenAndServe("tcp", ":8000"); err != nil {
      panic(err)
    }
```

```go
   // Client: 
   client := ccsocks5.NewClient("127.0.0.1:10800")
    conn, err := client.Dial("tcp", "127.0.0.1:12345") // server you want to visitor
    if err != nil {
    	panic(err)
    }
    conn.Write([]byte("hahaha"))
    time.Sleep(time.Second)
```

### Reference
- [rfc1928](https://www.ietf.org/rfc/rfc1928.txt) 
- original armon [go-sock5](https://github.com/armon/go-socks5)