mirror of https://github.com/ehang-io/nps
117 lines
3.0 KiB
Go
Executable File
117 lines
3.0 KiB
Go
Executable File
package proxy
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import (
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"errors"
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"github.com/cnlh/nps/bridge"
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"github.com/cnlh/nps/lib/common"
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"github.com/cnlh/nps/lib/conn"
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"github.com/cnlh/nps/lib/file"
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"github.com/cnlh/nps/server/connection"
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"github.com/cnlh/nps/vender/github.com/astaxie/beego"
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"github.com/cnlh/nps/vender/github.com/astaxie/beego/logs"
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"net"
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"net/http"
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"path/filepath"
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"strconv"
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)
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type TunnelModeServer struct {
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BaseServer
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process process
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listener net.Listener
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}
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//tcp|http|host
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func NewTunnelModeServer(process process, bridge NetBridge, task *file.Tunnel) *TunnelModeServer {
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s := new(TunnelModeServer)
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s.bridge = bridge
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s.process = process
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s.task = task
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return s
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}
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//开始
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func (s *TunnelModeServer) Start() error {
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return conn.NewTcpListenerAndProcess(s.task.ServerIp+":"+strconv.Itoa(s.task.Port), func(c net.Conn) {
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if err := s.CheckFlowAndConnNum(s.task.Client); err != nil {
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logs.Warn("client id %d, task id %d,error %s, when tcp connection", s.task.Client.Id, s.task.Id, err.Error())
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c.Close()
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return
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}
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logs.Trace("new tcp connection,local port %d,client %d,remote address %s", s.task.Port, s.task.Client.Id, c.RemoteAddr())
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s.process(conn.NewConn(c), s)
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s.task.Client.AddConn()
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}, &s.listener)
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}
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//close
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func (s *TunnelModeServer) Close() error {
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return s.listener.Close()
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}
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//web管理方式
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type WebServer struct {
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BaseServer
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}
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//开始
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func (s *WebServer) Start() error {
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p, _ := beego.AppConfig.Int("web_port")
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if p == 0 {
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stop := make(chan struct{})
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<-stop
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}
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beego.BConfig.WebConfig.Session.SessionOn = true
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beego.SetStaticPath("/static", filepath.Join(common.GetRunPath(), "web", "static"))
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beego.SetViewsPath(filepath.Join(common.GetRunPath(), "web", "views"))
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if l, err := connection.GetWebManagerListener(); err == nil {
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beego.InitBeforeHTTPRun()
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http.Serve(l, beego.BeeApp.Handlers)
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} else {
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logs.Error(err)
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}
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return errors.New("Web management startup failure")
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}
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func (s *WebServer) Close() error {
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return nil
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}
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//new
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func NewWebServer(bridge *bridge.Bridge) *WebServer {
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s := new(WebServer)
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s.bridge = bridge
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return s
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}
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type process func(c *conn.Conn, s *TunnelModeServer) error
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//tcp proxy
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func ProcessTunnel(c *conn.Conn, s *TunnelModeServer) error {
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targetAddr, err := s.task.Target.GetRandomTarget()
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if err != nil {
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c.Close()
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logs.Warn("tcp port %d ,client id %d,task id %d connect error %s", s.task.Port, s.task.Client.Id, s.task.Id, err.Error())
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return err
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}
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return s.DealClient(c, s.task.Client, targetAddr, nil, common.CONN_TCP, nil, s.task.Flow, s.task.Target.LocalProxy)
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}
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//http proxy
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func ProcessHttp(c *conn.Conn, s *TunnelModeServer) error {
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_, addr, rb, err, r := c.GetHost()
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if err != nil {
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c.Close()
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logs.Info(err)
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return err
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}
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if r.Method == "CONNECT" {
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c.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
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rb = nil
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}
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if err := s.auth(r, c, s.task.Client.Cnf.U, s.task.Client.Cnf.P); err != nil {
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return err
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}
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return s.DealClient(c, s.task.Client, addr, rb, common.CONN_TCP, nil, s.task.Flow, s.task.Target.LocalProxy)
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}
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