start refactoring

client/proxy.go

@@ -0,0 +1,141 @@
+// 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 client
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/fatedier/frp/models/config"
+	"github.com/fatedier/frp/models/proto/tcp"
+	"github.com/fatedier/frp/utils/net"
+)
+
+type Proxy interface {
+	Run()
+	InWorkConn(conn net.Conn)
+	Close()
+}
+
+func NewProxy(ctl *Control, pxyConf config.ProxyConf) (pxy Proxy) {
+	switch cfg := pxyConf.(type) {
+	case *config.TcpProxyConf:
+		pxy = &TcpProxy{
+			cfg: cfg,
+			ctl: ctl,
+		}
+	case *config.UdpProxyConf:
+		pxy = &UdpProxy{
+			cfg: cfg,
+			ctl: ctl,
+		}
+	case *config.HttpProxyConf:
+		pxy = &HttpProxy{
+			cfg: cfg,
+			ctl: ctl,
+		}
+	case *config.HttpsProxyConf:
+		pxy = &HttpsProxy{
+			cfg: cfg,
+			ctl: ctl,
+		}
+	}
+	return
+}
+
+// TCP
+type TcpProxy struct {
+	cfg *config.TcpProxyConf
+	ctl *Control
+}
+
+func (pxy *TcpProxy) Run() {
+}
+
+func (pxy *TcpProxy) Close() {
+}
+
+func (pxy *TcpProxy) InWorkConn(conn net.Conn) {
+	defer conn.Close()
+	localConn, err := net.ConnectTcpServer(fmt.Sprintf("%s:%d", pxy.cfg.LocalIp, pxy.cfg.LocalPort))
+	if err != nil {
+		conn.Error("connect to local service [%s:%d] error: %v", pxy.cfg.LocalIp, pxy.cfg.LocalPort, err)
+		return
+	}
+
+	var remote io.ReadWriteCloser
+	remote = conn
+	if pxy.cfg.UseEncryption {
+		remote, err = tcp.WithEncryption(remote, []byte(config.ClientCommonCfg.PrivilegeToken))
+		if err != nil {
+			conn.Error("create encryption stream error: %v", err)
+			return
+		}
+	}
+	if pxy.cfg.UseCompression {
+		remote = tcp.WithCompression(remote)
+	}
+	conn.Debug("join connections")
+	tcp.Join(localConn, remote)
+	conn.Debug("join connections closed")
+}
+
+// UDP
+type UdpProxy struct {
+	cfg *config.UdpProxyConf
+	ctl *Control
+}
+
+func (pxy *UdpProxy) Run() {
+}
+
+func (pxy *UdpProxy) Close() {
+}
+
+func (pxy *UdpProxy) InWorkConn(conn net.Conn) {
+	defer conn.Close()
+}
+
+// HTTP
+type HttpProxy struct {
+	cfg *config.HttpProxyConf
+	ctl *Control
+}
+
+func (pxy *HttpProxy) Run() {
+}
+
+func (pxy *HttpProxy) Close() {
+}
+
+func (pxy *HttpProxy) InWorkConn(conn net.Conn) {
+	defer conn.Close()
+}
+
+// HTTPS
+type HttpsProxy struct {
+	cfg *config.HttpsProxyConf
+	ctl *Control
+}
+
+func (pxy *HttpsProxy) Run() {
+}
+
+func (pxy *HttpsProxy) Close() {
+}
+
+func (pxy *HttpsProxy) InWorkConn(conn net.Conn) {
+	defer conn.Close()
+}