/
socks5.go
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/
socks5.go
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// 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"
"log"
"net"
frpNet "github.com/HaidyCao/frp_0390/pkg/util/net"
gosocks5 "github.com/armon/go-socks5"
)
const PluginSocks5 = "socks5"
func init() {
Register(PluginSocks5, NewSocks5Plugin)
}
type Socks5Plugin struct {
Server *gosocks5.Server
user string
passwd string
}
func NewSocks5Plugin(params map[string]string) (p Plugin, err error) {
user := params["plugin_user"]
passwd := params["plugin_passwd"]
cfg := &gosocks5.Config{
Logger: log.New(io.Discard, "", log.LstdFlags),
}
if user != "" || passwd != "" {
cfg.Credentials = gosocks5.StaticCredentials(map[string]string{user: passwd})
}
sp := &Socks5Plugin{}
sp.Server, err = gosocks5.New(cfg)
p = sp
return
}
func (sp *Socks5Plugin) Handle(conn io.ReadWriteCloser, realConn net.Conn, extraBufToLocal []byte) {
defer conn.Close()
wrapConn := frpNet.WrapReadWriteCloserToConn(conn, realConn)
sp.Server.ServeConn(wrapConn)
}
func (sp *Socks5Plugin) Name() string {
return PluginSocks5
}
func (sp *Socks5Plugin) Close() error {
return nil
}