mirror of https://github.com/ehang-io/nps
119 lines
2.7 KiB
Go
Executable File
119 lines
2.7 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/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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"os"
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"path/filepath"
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"strings"
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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.TCPListener
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}
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//tcp|http|host
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func NewTunnelModeServer(process process, bridge *bridge.Bridge, 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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var err error
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s.listener, err = net.ListenTCP("tcp", &net.TCPAddr{net.ParseIP("0.0.0.0"), s.task.Port, ""})
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if err != nil {
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return err
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}
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for {
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c, err := s.listener.AcceptTCP()
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if err != nil {
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if strings.Contains(err.Error(), "use of closed network connection") {
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break
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}
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logs.Info(err)
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continue
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}
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if s.task.Client.GetConn() {
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logs.Trace("New tcp connection,client %d,remote address %s", s.task.Client.Id, c.RemoteAddr())
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go s.process(conn.NewConn(c), s)
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} else {
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logs.Info("Connections exceed the current client %d limit", s.task.Client.Id)
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c.Close()
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}
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}
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return nil
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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("httpport")
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if !common.TestTcpPort(p) {
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logs.Error("Web management port %d is occupied", p)
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os.Exit(0)
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}
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beego.BConfig.WebConfig.Session.SessionOn = true
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logs.Info("Web management start, access port is", p)
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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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beego.Run()
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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隧道模式
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func ProcessTunnel(c *conn.Conn, s *TunnelModeServer) error {
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return s.DealClient(c, s.task.Target, nil)
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}
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//http代理模式
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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"))
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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, addr, rb)
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}
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