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@ -11,8 +11,8 @@ import (
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type socks5Conn struct {
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//addr string
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client_conn net.Conn
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server_conn net.Conn
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clientConn net.Conn
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serverConn net.Conn
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dial dialFunc
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}
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@ -34,28 +34,28 @@ func (s5 *socks5Conn) handshake() error {
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// only process auth methods here
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buf := make([]byte, 258)
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n, err := io.ReadAtLeast(s5.client_conn, buf, 1)
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n, err := io.ReadAtLeast(s5.clientConn, buf, 1)
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if err != nil {
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return err
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}
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l := int(buf[0]) + 1
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if n < l {
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_, err := io.ReadFull(s5.client_conn, buf[n:l])
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_, err := io.ReadFull(s5.clientConn, buf[n:l])
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if err != nil {
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return err
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}
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}
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// no auth required
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s5.client_conn.Write([]byte{0x05, 0x00})
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s5.clientConn.Write([]byte{0x05, 0x00})
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return nil
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}
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func (s5 *socks5Conn) processRequest() error {
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buf := make([]byte, 258)
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n, err := io.ReadAtLeast(s5.client_conn, buf, 10)
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n, err := io.ReadAtLeast(s5.clientConn, buf, 10)
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if err != nil {
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return err
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}
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@ -83,7 +83,7 @@ func (s5 *socks5Conn) processRequest() error {
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msglen = 6 + hlen
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if n < msglen {
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_, err := io.ReadFull(s5.client_conn, buf[n:msglen])
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_, err := io.ReadFull(s5.clientConn, buf[n:msglen])
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if err != nil {
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return err
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}
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@ -103,12 +103,12 @@ func (s5 *socks5Conn) processRequest() error {
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// reply user with connect success
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// if dial to target failed, user will receive connection reset
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s5.client_conn.Write([]byte{0x05, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01})
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s5.clientConn.Write([]byte{0x05, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01})
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log.Printf("connecing to %s", target)
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// connect to the target
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s5.server_conn, err = s5.dial("tcp", target)
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s5.serverConn, err = s5.dial("tcp", target)
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if err != nil {
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return err
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}
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@ -120,15 +120,15 @@ func (s5 *socks5Conn) processRequest() error {
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}
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func (s5 *socks5Conn) forward() {
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go io.Copy(s5.client_conn, s5.server_conn)
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io.Copy(s5.server_conn, s5.client_conn)
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go io.Copy(s5.clientConn, s5.serverConn)
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io.Copy(s5.serverConn, s5.clientConn)
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}
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func (s5 *socks5Conn) Close() {
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if s5.server_conn != nil {
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s5.server_conn.Close()
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if s5.serverConn != nil {
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s5.serverConn.Close()
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}
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if s5.client_conn != nil {
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s5.client_conn.Close()
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if s5.clientConn != nil {
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s5.clientConn.Close()
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}
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}
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