add shadowsocks compitable

client.go

@@ -3,6 +3,8 @@ package main
 import (
 	"bufio"
 	"bytes"
+	"encoding/binary"
+	"fmt"
 	"github.com/ginuerzh/gosocks5"
 	"github.com/shadowsocks/shadowsocks-go/shadowsocks"
 	"io"
@@ -81,8 +83,14 @@ func cliHandle(conn net.Conn) {
 		sconn = shadowsocks.NewConn(sconn, cipher)
 	}
 
-	b := make([]byte, 8192)
+	if Shadows {
+		cipher, _ := shadowsocks.NewCipher(Cipher, Password)
+		conn = shadowsocks.NewConn(conn, cipher)
+		handleShadow(conn, sconn)
+		return
+	}
 
+	b := make([]byte, 8192)
 	n, err := io.ReadAtLeast(conn, b, 2)
 	if err != nil {
 		log.Println(err)
@@ -258,3 +266,106 @@ func handleHttp(req *http.Request, conn net.Conn, sconn net.Conn) {
 		log.Println(err)
 	}
 }
+
+func handleShadow(conn, sconn net.Conn) {
+	addr, extra, err := getShadowRequest(conn)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+
+	req := gosocks5.NewRequest(gosocks5.CmdConnect, addr)
+	if err := req.Write(sconn); err != nil {
+		log.Println(err)
+		return
+	}
+	rep, err := gosocks5.ReadReply(sconn)
+	if err != nil || rep.Rep != gosocks5.Succeeded {
+		log.Println(err)
+		return
+	}
+
+	if extra != nil {
+		if _, err := sconn.Write(extra); err != nil {
+			log.Println(err)
+			return
+		}
+	}
+
+	if err := Transport(conn, sconn); err != nil {
+		log.Println(err)
+	}
+}
+
+func getShadowRequest(conn net.Conn) (addr *gosocks5.Addr, extra []byte, err error) {
+	const (
+		idType  = 0 // address type index
+		idIP0   = 1 // ip addres start index
+		idDmLen = 1 // domain address length index
+		idDm0   = 2 // domain address start index
+
+		typeIPv4 = 1 // type is ipv4 address
+		typeDm   = 3 // type is domain address
+		typeIPv6 = 4 // type is ipv6 address
+
+		lenIPv4   = 1 + net.IPv4len + 2 // 1addrType + ipv4 + 2port
+		lenIPv6   = 1 + net.IPv6len + 2 // 1addrType + ipv6 + 2port
+		lenDmBase = 1 + 1 + 2           // 1addrType + 1addrLen + 2port, plus addrLen
+	)
+
+	// buf size should at least have the same size with the largest possible
+	// request size (when addrType is 3, domain name has at most 256 bytes)
+	// 1(addrType) + 1(lenByte) + 256(max length address) + 2(port)
+	buf := make([]byte, 260)
+	var n int
+	// read till we get possible domain length field
+	//shadowsocks.SetReadTimeout(conn)
+	if n, err = io.ReadAtLeast(conn, buf, idDmLen+1); err != nil {
+		log.Println(err)
+		return
+	}
+
+	addr = &gosocks5.Addr{
+		Type: buf[idType],
+	}
+
+	reqLen := -1
+	switch buf[idType] {
+	case typeIPv4:
+		reqLen = lenIPv4
+	case typeIPv6:
+		reqLen = lenIPv6
+	case typeDm:
+		reqLen = int(buf[idDmLen]) + lenDmBase
+	default:
+		err = fmt.Errorf("addr type %d not supported", buf[idType])
+		return
+	}
+
+	if n < reqLen { // rare case
+		//ss.SetReadTimeout(conn)
+		if _, err = io.ReadFull(conn, buf[n:reqLen]); err != nil {
+			log.Println(err)
+			return
+		}
+	} else if n > reqLen {
+		// it's possible to read more than just the request head
+		extra = buf[reqLen:n]
+	}
+
+	// Return string for typeIP is not most efficient, but browsers (Chrome,
+	// Safari, Firefox) all seems using typeDm exclusively. So this is not a
+	// big problem.
+	switch buf[idType] {
+	case typeIPv4:
+		addr.Host = net.IP(buf[idIP0 : idIP0+net.IPv4len]).String()
+	case typeIPv6:
+		addr.Host = net.IP(buf[idIP0 : idIP0+net.IPv6len]).String()
+	case typeDm:
+		addr.Host = string(buf[idDm0 : idDm0+buf[idDmLen]])
+	}
+	// parse port
+	addr.Port = binary.BigEndian.Uint16(buf[reqLen-2 : reqLen])
+
+	return
+}

gost.go

@@ -1,681 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"bytes"
-	//"crypto/tls"
-	//"errors"
-	"io"
-	//"io/ioutil"
-	"log"
-	"net"
-	"net/http"
-	"strconv"
-	"strings"
-	//"sync/atomic"
-	"encoding/binary"
-	"fmt"
-	"github.com/shadowsocks/shadowsocks-go/shadowsocks"
-	//"net/url"
-	"time"
-)
-
-const (
-	readWait  = 300 * time.Second
-	writeWait = 300 * time.Second
-)
-
-type Gost struct {
-	Laddr, Saddr, Proxy string
-	Shadows             bool // shadowsocks compatible
-	Cipher              bool
-}
-
-func (g *Gost) Run() error {
-	addr, err := net.ResolveTCPAddr("tcp", g.Laddr)
-	if err != nil {
-		return err
-	}
-
-	ln, err := net.ListenTCP("tcp", addr)
-	if err != nil {
-		return err
-	}
-
-	for {
-		conn, err := ln.AcceptTCP()
-		if err != nil {
-			log.Println("accept:", err)
-			continue
-		}
-		//log.Println("accept", conn.RemoteAddr().String())
-		go g.handle(conn)
-	}
-
-	return ln.Close()
-}
-
-func (g *Gost) handle(conn net.Conn) {
-	defer conn.Close()
-
-	// as client
-	if len(g.Saddr) > 0 {
-		g.cli(conn)
-		return
-	}
-	// as server
-	g.srv(conn)
-}
-
-func (g *Gost) cli(conn net.Conn) {
-	lg := NewLog(false)
-	defer func() {
-		lg.Logln()
-		lg.Flush()
-	}()
-
-	raddr := conn.(*net.TCPConn).RemoteAddr()
-	lg.Logln("accept", raddr.String())
-
-	sconn, err := Connect(g.Saddr, g.Proxy)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	defer sconn.Close()
-
-	laddr := sconn.(*net.TCPConn).LocalAddr().String()
-	lg.Logln(laddr)
-
-	b := make([]byte, 8192)
-	b[0] = 5
-	b[1] = 1
-	if len(Cipher) > 0 {
-		b[2] = MethodAES256
-	}
-
-	if _, err := sconn.Write(b[:3]); err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln(">>>|", b[:3])
-
-	n, err := io.ReadFull(sconn, b[:2])
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln("<<<|", b[:n])
-
-	if b[1] == MethodAES256 {
-		cipher, _ := shadowsocks.NewCipher("aes-256-cfb", "gost")
-		sconn = shadowsocks.NewConn(sconn, cipher)
-	}
-
-	if g.Shadows {
-		lg.Logln("shadowsocks, aes-256-cfb")
-		cipher, _ := shadowsocks.NewCipher("aes-256-cfb", "gost")
-
-		shadowTransfer(shadowsocks.NewConn(conn, cipher), sconn, lg)
-		return
-	}
-
-	n, err = conn.Read(b)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	//log.Println(b[:n])
-	if b[0] == 5 { // socks5,NO AUTHENTICATION
-		lg.Logln("|>>>", b[:n])
-
-		if _, err := conn.Write([]byte{5, 0}); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|<<<", []byte{5, 0})
-
-		socks5Transfer(conn, sconn, lg)
-		return
-	}
-
-	//log.Println(string(b[:n]))
-	req, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(b[:n])))
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-
-	httpTransfer(req, conn, sconn, lg)
-}
-
-func (g *Gost) srv(conn net.Conn) {
-	b := make([]byte, 8192)
-	lg := NewLog(false)
-	defer func() {
-		lg.Logln()
-		lg.Flush()
-	}()
-	raddr := conn.(*net.TCPConn).RemoteAddr()
-	lg.Logln("accept", raddr.String())
-
-	n, err := conn.Read(b)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-
-	if b[0] == 5 { // socks5
-		lg.Logln("|>>>", b[:n])
-		method := b[2]
-		if _, err := conn.Write([]byte{5, method}); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|<<<", []byte{5, method})
-
-		if method == MethodAES256 {
-			cipher, _ := shadowsocks.NewCipher("aes-256-cfb", "gost")
-			conn = shadowsocks.NewConn(conn, cipher)
-		}
-		cmd, err := ReadCmd(conn)
-		if err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|>>>", cmd)
-
-		switch cmd.Cmd {
-		case CmdConnect:
-			//host := cmd.Addr + ":" + strconv.Itoa(int(cmd.Port))
-			host := net.JoinHostPort(cmd.Addr, strconv.Itoa(int(cmd.Port)))
-			lg.Logln("connect", host)
-
-			tconn, err := Connect(host, g.Proxy)
-			if err != nil {
-				lg.Logln(err)
-				cmd = NewCmd(ConnRefused, 0, "", 0)
-				cmd.Write(conn)
-				lg.Logln("|<<<", cmd)
-				return
-			}
-			defer tconn.Close()
-
-			cmd = NewCmd(Succeeded, AddrIPv4, "", 0)
-			if err = cmd.Write(conn); err != nil {
-				lg.Logln(err)
-				return
-			}
-			lg.Logln("|<<<", cmd)
-
-			if err := Transport(conn, tconn); err != nil {
-				lg.Logln(err)
-			}
-		case CmdUdp:
-			//log.Println("recv udp")
-			//addr := &net.UDPAddr{IP: raddr.(*net.TCPAddr).IP}
-			uconn, err := net.ListenUDP("udp", nil)
-			if err != nil {
-				lg.Logln(err)
-				return
-			}
-			defer uconn.Close()
-
-			uaddr := uconn.LocalAddr()
-			lg.Logln("listen udp", uaddr)
-
-			_, port, _ := net.SplitHostPort(uaddr.String())
-			p, _ := strconv.Atoi(port)
-			cmd = NewCmd(Succeeded, AddrIPv4, "", uint16(p))
-			if err = cmd.Write(conn); err != nil {
-				lg.Logln(err)
-				return
-			}
-			lg.Logln("|<<<", cmd)
-
-			if err := tunnelUdp(conn, uconn, true); err != nil {
-				lg.Logln(err)
-			}
-			/*
-				up, err := ReadUdpPayload(uconn)
-				if err != nil {
-					lg.Logln(err)
-					return
-				}
-				lg.Logln("[>>>", up)
-			*/
-		case CmdBind:
-			//log.Println("recv bind")
-			l, err := net.ListenTCP("tcp", nil)
-			if err != nil {
-				lg.Logln(err)
-				cmd := NewCmd(Failure, AddrIPv4, "", 0)
-				cmd.Write(conn)
-				lg.Logln("|<<<", cmd)
-				return
-			}
-			defer l.Close()
-
-			addr := ""
-			ifis, _ := net.Interfaces()
-			for _, ifi := range ifis {
-				if strings.HasPrefix(ifi.Name, "eth") {
-					addrs, _ := ifi.Addrs()
-					if len(addrs) > 0 {
-						ip, _, _ := net.ParseCIDR(addrs[0].String())
-						addr = ip.String()
-					}
-					break
-				}
-			}
-			lg.Logln("bind", addr, l.Addr().(*net.TCPAddr).Port)
-			cmd := NewCmd(Succeeded, AddrIPv4, addr, uint16(l.Addr().(*net.TCPAddr).Port))
-			if err := cmd.Write(conn); err != nil {
-				lg.Logln(err)
-				return
-			}
-			lg.Logln("|<<<", cmd)
-
-			for {
-				c, err := l.AcceptTCP()
-				if err != nil {
-					log.Println("accept:", err)
-					return
-				}
-				raddr := c.RemoteAddr().(*net.TCPAddr)
-				cmd := NewCmd(Succeeded, AddrIPv4, raddr.IP.String(), uint16(raddr.Port))
-				if err := cmd.Write(conn); err != nil {
-					log.Println(err)
-					return
-				}
-				defer c.Close()
-
-				Transport(conn, c)
-				return
-			}
-		}
-
-		return
-	}
-
-	//log.Println(string(b[:n]))
-	req, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(b[:n])))
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-
-	lg.Logln(req.Method, req.RequestURI)
-	host := req.Host
-	if !strings.Contains(host, ":") {
-		host = host + ":80"
-	}
-	tconn, err := Connect(host, g.Proxy)
-	if err != nil {
-		lg.Logln(err)
-		conn.Write([]byte("HTTP/1.1 503 Service unavailable\r\n" +
-			"Proxy-Agent: gost/1.0\r\n\r\n"))
-		return
-	}
-	defer tconn.Close()
-
-	if req.Method == "CONNECT" {
-		if _, err = conn.Write(
-			[]byte("HTTP/1.1 200 Connection established\r\n" +
-				"Proxy-Agent: gost/1.0\r\n\r\n")); err != nil {
-			lg.Logln(err)
-			return
-		}
-	} else {
-		if err := req.Write(tconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-	}
-
-	if err := Transport(conn, tconn); err != nil {
-		lg.Logln(err)
-	}
-}
-
-func tunnelUdp(conn net.Conn, uconn *net.UDPConn, rawUdp bool) (err error) {
-	rChan := make(chan error, 1)
-	wChan := make(chan error, 1)
-	var raddr *net.UDPAddr
-
-	go func() {
-		for {
-			up, err := ReadUdpPayload(conn)
-			if err != nil {
-				rChan <- err
-				return
-			}
-
-			addr, err := net.ResolveUDPAddr("udp", net.JoinHostPort(up.Addr, strconv.Itoa(int(up.Port))))
-			if err != nil {
-				log.Println(err)
-				continue
-			}
-			if rawUdp {
-				if _, err = uconn.WriteToUDP(up.Data, addr); err != nil {
-					log.Println(err)
-				}
-				log.Println("r", up)
-			} else {
-				up.Rsv = 0
-				buf := &bytes.Buffer{}
-				up.Write(buf)
-				log.Println(raddr, buf.Bytes())
-				if _, err := uconn.WriteToUDP(buf.Bytes(), raddr); err != nil {
-					log.Println(err)
-				}
-				log.Println("r", up)
-			}
-		}
-	}()
-
-	go func() {
-		for {
-			b := make([]byte, 65797)
-			n, addr, err := uconn.ReadFromUDP(b)
-			if err != nil {
-				log.Println(err)
-				return
-			}
-			raddr = addr
-
-			if rawUdp {
-				host, port, _ := net.SplitHostPort(addr.String())
-				p, _ := strconv.Atoi(port)
-				up := NewUdpPayload(uint16(n), AddrIPv4, host, uint16(p), b[:n])
-				if err := up.Write(conn); err != nil {
-					wChan <- err
-					return
-				}
-				log.Println("w", up)
-				continue
-			}
-
-			rbuf := bytes.NewReader(b[:n])
-			up, err := ReadUdpPayload(rbuf)
-			if err != nil {
-				log.Println(err)
-				continue
-			}
-			up.Rsv = uint16(len(up.Data))
-			if err := up.Write(conn); err != nil {
-				wChan <- err
-				return
-			}
-			log.Println("w", up)
-		}
-	}()
-
-	select {
-	case err = <-wChan:
-		//log.Println("w exit", err)
-	case err = <-rChan:
-		//log.Println("r exit", err)
-	}
-
-	return
-}
-
-func socks5Transfer(conn, sconn net.Conn, lg *BufferedLog) {
-	cmd, err := ReadCmd(conn)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln("|>>>", cmd)
-
-	switch cmd.Cmd {
-	case CmdConnect:
-		if err = cmd.Write(sconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln(">>>|", cmd)
-
-		cmd, err = ReadCmd(sconn)
-		if err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("<<<|", cmd)
-
-		if err = cmd.Write(conn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|<<<", cmd)
-
-		if err := Transport(conn, sconn); err != nil {
-			lg.Logln("transport:", err)
-		}
-	case CmdUdp:
-		//raddr := conn.(*net.TCPConn).RemoteAddr()
-		addr := &net.UDPAddr{IP: net.ParseIP(cmd.Addr)}
-		uconn, err := net.ListenUDP("udp", addr)
-		if err != nil {
-			lg.Logln(err)
-			return
-		}
-		uaddr := uconn.LocalAddr()
-		lg.Logln("listen udp", uaddr)
-
-		cmd := NewCmd(CmdUdp, AddrIPv4, "", 0)
-		if err = cmd.Write(sconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln(">>>|", cmd)
-
-		if cmd, err = ReadCmd(sconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("<<<|", cmd)
-
-		_, port, _ := net.SplitHostPort(uconn.LocalAddr().String())
-		p, _ := strconv.Atoi(port)
-		cmd = NewCmd(Succeeded, AddrIPv4, "", uint16(p))
-		if err = cmd.Write(conn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|<<<", cmd)
-
-		if err := tunnelUdp(sconn, uconn, false); err != nil {
-			lg.Logln("tunnel UDP:", err)
-		}
-	case CmdBind:
-		if err := cmd.Write(sconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-
-		cmd, err := ReadCmd(sconn)
-		if err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("<<<|", cmd)
-		if err := cmd.Write(conn); err != nil {
-			lg.Logln(err)
-			return
-		}
-		lg.Logln("|<<<", cmd)
-
-		if err := Transport(conn, sconn); err != nil {
-			lg.Logln("bind:", err)
-		}
-	}
-
-}
-
-func httpTransfer(req *http.Request, conn, sconn net.Conn, lg *BufferedLog) {
-	lg.Logln(req.Method, req.RequestURI)
-
-	var addr string
-	var port uint16
-
-	host := strings.Split(req.Host, ":")
-	if len(host) == 1 {
-		addr = host[0]
-		port = 80
-	}
-	if len(host) == 2 {
-		addr = host[0]
-		n, _ := strconv.ParseUint(host[1], 10, 16)
-		port = uint16(n)
-	}
-
-	cmd := NewCmd(CmdConnect, AddrDomain, addr, port)
-	err := cmd.Write(sconn)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln(">>>|", cmd)
-
-	if cmd, err = ReadCmd(sconn); err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln("<<<|", cmd)
-
-	if cmd.Cmd != Succeeded {
-		conn.Write([]byte("HTTP/1.1 503 Service unavailable\r\n" +
-			"Proxy-Agent: gost/1.0\r\n\r\n"))
-		return
-	}
-
-	if req.Method == "CONNECT" {
-		if _, err = conn.Write(
-			[]byte("HTTP/1.1 200 Connection established\r\n" +
-				"Proxy-Agent: gost/2.0\r\n\r\n")); err != nil {
-			lg.Logln(err)
-			return
-		}
-	} else {
-		if err = req.Write(sconn); err != nil {
-			lg.Logln(err)
-			return
-		}
-	}
-
-	if err := Transport(conn, sconn); err != nil {
-		lg.Logln(err)
-	}
-}
-
-func shadowTransfer(conn, sconn net.Conn, lg *BufferedLog) {
-	t, addr, port, extra, err := getRequest(conn)
-	if err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln(addr, port)
-
-	cmd := NewCmd(CmdConnect, t, addr, port)
-	if err = cmd.Write(sconn); err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln(">>>|", cmd)
-
-	if cmd, err = ReadCmd(sconn); err != nil {
-		lg.Logln(err)
-		return
-	}
-	lg.Logln("<<<|", cmd)
-
-	if cmd.Cmd != Succeeded {
-		conn.Write([]byte("HTTP/1.1 503 Service unavailable\r\n" +
-			"Proxy-Agent: gost/1.0\r\n\r\n"))
-		return
-	}
-
-	if extra != nil {
-		//lg.Logln("extra:", string(extra))
-		if _, err := sconn.Write(extra); err != nil {
-			lg.Logln(err)
-			return
-		}
-	}
-
-	if err := Transport(conn, sconn); err != nil {
-		lg.Logln(err)
-	}
-}
-
-func getRequest(conn net.Conn) (addrType uint8, addr string, port uint16, extra []byte, err error) {
-	const (
-		idType  = 0 // address type index
-		idIP0   = 1 // ip addres start index
-		idDmLen = 1 // domain address length index
-		idDm0   = 2 // domain address start index
-
-		typeIPv4 = 1 // type is ipv4 address
-		typeDm   = 3 // type is domain address
-		typeIPv6 = 4 // type is ipv6 address
-
-		lenIPv4   = 1 + net.IPv4len + 2 // 1addrType + ipv4 + 2port
-		lenIPv6   = 1 + net.IPv6len + 2 // 1addrType + ipv6 + 2port
-		lenDmBase = 1 + 1 + 2           // 1addrType + 1addrLen + 2port, plus addrLen
-	)
-
-	// buf size should at least have the same size with the largest possible
-	// request size (when addrType is 3, domain name has at most 256 bytes)
-	// 1(addrType) + 1(lenByte) + 256(max length address) + 2(port)
-	buf := make([]byte, 260)
-	var n int
-	// read till we get possible domain length field
-	//shadowsocks.SetReadTimeout(conn)
-	if n, err = io.ReadAtLeast(conn, buf, idDmLen+1); err != nil {
-		log.Println(err)
-		return
-	}
-	//log.Println(buf[:n])
-	addrType = buf[idType]
-
-	reqLen := -1
-	switch buf[idType] {
-	case typeIPv4:
-		reqLen = lenIPv4
-	case typeIPv6:
-		reqLen = lenIPv6
-	case typeDm:
-		reqLen = int(buf[idDmLen]) + lenDmBase
-	default:
-		err = fmt.Errorf("addr type %d not supported", buf[idType])
-		return
-	}
-
-	if n < reqLen { // rare case
-		//ss.SetReadTimeout(conn)
-		if _, err = io.ReadFull(conn, buf[n:reqLen]); err != nil {
-			log.Println(err)
-			return
-		}
-	} else if n > reqLen {
-		// it's possible to read more than just the request head
-		extra = buf[reqLen:n]
-	}
-
-	// Return string for typeIP is not most efficient, but browsers (Chrome,
-	// Safari, Firefox) all seems using typeDm exclusively. So this is not a
-	// big problem.
-	switch buf[idType] {
-	case typeIPv4:
-		addr = net.IP(buf[idIP0 : idIP0+net.IPv4len]).String()
-	case typeIPv6:
-		addr = net.IP(buf[idIP0 : idIP0+net.IPv6len]).String()
-	case typeDm:
-		addr = string(buf[idDm0 : idDm0+buf[idDmLen]])
-	}
-	// parse port
-	port = binary.BigEndian.Uint16(buf[reqLen-2 : reqLen])
-	return
-}

main.go

@@ -18,7 +18,7 @@ func init() {
 	flag.StringVar(&Saddr, "S", "", "the server that connecting to")
 	flag.StringVar(&Laddr, "L", ":8080", "listen address")
 	flag.StringVar(&Cipher, "cipher", "rc4-md5", "cipher method")
-	flag.StringVar(&Password, "password", "20150327", "cipher password")
+	flag.StringVar(&Password, "password", "ginuerzh@gmail.com", "cipher password")
 	flag.BoolVar(&Shadows, "ss", false, "shadowsocks compatible")
 	flag.BoolVar(&Debug, "d", false, "debug option")
 	flag.Parse()

server.go

@@ -18,7 +18,7 @@ func selectMethod(methods ...uint8) uint8 {
 			return method
 		}
 	}
-	return gosocks5.MethodNoAcceptable
+	return gosocks5.MethodNoAuth
 }
 
 func srvHandle(conn net.Conn, method uint8) {