frp/models/plugin/socks5.go

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2017-07-01 15:56:48 +08:00
// Copyright 2017 fatedier, fatedier@gmail.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package plugin
import (
"io"
"io/ioutil"
"log"
frpNet "github.com/fatedier/frp/utils/net"
gosocks5 "github.com/armon/go-socks5"
)
const PluginSocks5 = "socks5"
func init() {
Register(PluginSocks5, NewSocks5Plugin)
}
type Socks5Plugin struct {
Server *gosocks5.Server
}
func NewSocks5Plugin(params map[string]string) (p Plugin, err error) {
sp := &Socks5Plugin{}
sp.Server, err = gosocks5.New(&gosocks5.Config{
Logger: log.New(ioutil.Discard, "", log.LstdFlags),
})
p = sp
return
}
func (sp *Socks5Plugin) Handle(conn io.ReadWriteCloser) {
defer conn.Close()
var wrapConn frpNet.Conn
if realConn, ok := conn.(frpNet.Conn); ok {
wrapConn = realConn
} else {
wrapConn = frpNet.WrapReadWriteCloserToConn(conn)
}
sp.Server.ServeConn(wrapConn)
}
func (sp *Socks5Plugin) Name() string {
return PluginSocks5
}
func (sp *Socks5Plugin) Close() error {
return nil
}