// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package proxy import ( "io" "net" "net/url" "strconv" "sync" "testing" ) func TestFromURL(t *testing.T) { endSystem, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { t.Fatalf("net.Listen failed: %v", err) } defer endSystem.Close() gateway, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { t.Fatalf("net.Listen failed: %v", err) } defer gateway.Close() var wg sync.WaitGroup wg.Add(1) go socks5Gateway(t, gateway, endSystem, socks5Domain, &wg) url, err := url.Parse("socks5://user:password@" + gateway.Addr().String()) if err != nil { t.Fatalf("url.Parse failed: %v", err) } proxy, err := FromURL(url, Direct) if err != nil { t.Fatalf("FromURL failed: %v", err) } _, port, err := net.SplitHostPort(endSystem.Addr().String()) if err != nil { t.Fatalf("net.SplitHostPort failed: %v", err) } if c, err := proxy.Dial("tcp", "localhost:"+port); err != nil { t.Fatalf("FromURL.Dial failed: %v", err) } else { c.Close() } wg.Wait() } func TestSOCKS5(t *testing.T) { endSystem, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { t.Fatalf("net.Listen failed: %v", err) } defer endSystem.Close() gateway, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { t.Fatalf("net.Listen failed: %v", err) } defer gateway.Close() var wg sync.WaitGroup wg.Add(1) go socks5Gateway(t, gateway, endSystem, socks5IP4, &wg) proxy, err := SOCKS5("tcp", gateway.Addr().String(), nil, Direct) if err != nil { t.Fatalf("SOCKS5 failed: %v", err) } if c, err := proxy.Dial("tcp", endSystem.Addr().String()); err != nil { t.Fatalf("SOCKS5.Dial failed: %v", err) } else { c.Close() } wg.Wait() } func socks5Gateway(t *testing.T, gateway, endSystem net.Listener, typ byte, wg *sync.WaitGroup) { defer wg.Done() c, err := gateway.Accept() if err != nil { t.Errorf("net.Listener.Accept failed: %v", err) return } defer c.Close() b := make([]byte, 32) var n int if typ == socks5Domain { n = 4 } else { n = 3 } if _, err := io.ReadFull(c, b[:n]); err != nil { t.Errorf("io.ReadFull failed: %v", err) return } if _, err := c.Write([]byte{socks5Version, socks5AuthNone}); err != nil { t.Errorf("net.Conn.Write failed: %v", err) return } if typ == socks5Domain { n = 16 } else { n = 10 } if _, err := io.ReadFull(c, b[:n]); err != nil { t.Errorf("io.ReadFull failed: %v", err) return } if b[0] != socks5Version || b[1] != socks5Connect || b[2] != 0x00 || b[3] != typ { t.Errorf("got an unexpected packet: %#02x %#02x %#02x %#02x", b[0], b[1], b[2], b[3]) return } if typ == socks5Domain { copy(b[:5], []byte{socks5Version, 0x00, 0x00, socks5Domain, 9}) b = append(b, []byte("localhost")...) } else { copy(b[:4], []byte{socks5Version, 0x00, 0x00, socks5IP4}) } host, port, err := net.SplitHostPort(endSystem.Addr().String()) if err != nil { t.Errorf("net.SplitHostPort failed: %v", err) return } b = append(b, []byte(net.ParseIP(host).To4())...) p, err := strconv.Atoi(port) if err != nil { t.Errorf("strconv.Atoi failed: %v", err) return } b = append(b, []byte{byte(p >> 8), byte(p)}...) if _, err := c.Write(b); err != nil { t.Errorf("net.Conn.Write failed: %v", err) return } }