155 lines
3.2 KiB
Go
155 lines
3.2 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package socks5
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import (
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"errors"
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"fmt"
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"io"
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"net"
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"testing"
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"golang.org/x/net/proxy"
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)
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func socks5Server(listener net.Listener) {
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var server Server
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err := server.Serve(listener)
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if err != nil {
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panic(err)
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}
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listener.Close()
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}
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func backendServer(listener net.Listener) {
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conn, err := listener.Accept()
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if err != nil {
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panic(err)
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}
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conn.Write([]byte("Test"))
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conn.Close()
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listener.Close()
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}
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func TestRead(t *testing.T) {
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// backend server which we'll use SOCKS5 to connect to
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listener, err := net.Listen("tcp", ":0")
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if err != nil {
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t.Fatal(err)
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}
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backendServerPort := listener.Addr().(*net.TCPAddr).Port
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go backendServer(listener)
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// SOCKS5 server
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socks5, err := net.Listen("tcp", ":0")
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if err != nil {
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t.Fatal(err)
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}
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socks5Port := socks5.Addr().(*net.TCPAddr).Port
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go socks5Server(socks5)
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addr := fmt.Sprintf("localhost:%d", socks5Port)
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socksDialer, err := proxy.SOCKS5("tcp", addr, nil, proxy.Direct)
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if err != nil {
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t.Fatal(err)
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}
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addr = fmt.Sprintf("localhost:%d", backendServerPort)
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conn, err := socksDialer.Dial("tcp", addr)
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if err != nil {
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t.Fatal(err)
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}
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buf := make([]byte, 4)
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_, err = io.ReadFull(conn, buf)
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if err != nil {
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t.Fatal(err)
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}
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if string(buf) != "Test" {
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t.Fatalf("got: %q want: Test", buf)
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}
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err = conn.Close()
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestReadPassword(t *testing.T) {
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// backend server which we'll use SOCKS5 to connect to
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ln, err := net.Listen("tcp", ":0")
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if err != nil {
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t.Fatal(err)
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}
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backendServerPort := ln.Addr().(*net.TCPAddr).Port
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go backendServer(ln)
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socks5ln, err := net.Listen("tcp", ":0")
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if err != nil {
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t.Fatal(err)
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}
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t.Cleanup(func() {
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socks5ln.Close()
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})
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auth := &proxy.Auth{User: "foo", Password: "bar"}
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go func() {
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s := Server{Username: auth.User, Password: auth.Password}
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err := s.Serve(socks5ln)
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if err != nil && !errors.Is(err, net.ErrClosed) {
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panic(err)
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}
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}()
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addr := fmt.Sprintf("localhost:%d", socks5ln.Addr().(*net.TCPAddr).Port)
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if d, err := proxy.SOCKS5("tcp", addr, nil, proxy.Direct); err != nil {
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t.Fatal(err)
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} else {
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if _, err := d.Dial("tcp", addr); err == nil {
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t.Fatal("expected no-auth dial error")
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}
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}
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badPwd := &proxy.Auth{User: "foo", Password: "not right"}
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if d, err := proxy.SOCKS5("tcp", addr, badPwd, proxy.Direct); err != nil {
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t.Fatal(err)
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} else {
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if _, err := d.Dial("tcp", addr); err == nil {
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t.Fatal("expected bad password dial error")
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}
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}
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badUsr := &proxy.Auth{User: "not right", Password: "bar"}
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if d, err := proxy.SOCKS5("tcp", addr, badUsr, proxy.Direct); err != nil {
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t.Fatal(err)
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} else {
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if _, err := d.Dial("tcp", addr); err == nil {
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t.Fatal("expected bad username dial error")
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}
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}
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socksDialer, err := proxy.SOCKS5("tcp", addr, auth, proxy.Direct)
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if err != nil {
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t.Fatal(err)
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}
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addr = fmt.Sprintf("localhost:%d", backendServerPort)
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conn, err := socksDialer.Dial("tcp", addr)
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if err != nil {
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t.Fatal(err)
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}
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buf := make([]byte, 4)
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if _, err := io.ReadFull(conn, buf); err != nil {
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t.Fatal(err)
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}
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if string(buf) != "Test" {
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t.Fatalf("got: %q want: Test", buf)
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}
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if err := conn.Close(); err != nil {
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t.Fatal(err)
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}
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}
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