1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
20 type proxyFromEnvTest struct {
26 func (t proxyFromEnvTest) String() string {
33 if t.allProxyEnv != "" {
34 fmt.Fprintf(&buf, "all_proxy=%q", t.allProxyEnv)
36 if t.noProxyEnv != "" {
38 fmt.Fprintf(&buf, "no_proxy=%q", t.noProxyEnv)
40 return strings.TrimSpace(buf.String())
43 func TestFromEnvironment(t *testing.T) {
46 type dummyDialer struct {
50 RegisterDialerType("irc", func(_ *url.URL, _ Dialer) (Dialer, error) {
51 return dummyDialer{}, nil
54 proxyFromEnvTests := []proxyFromEnvTest{
55 {allProxyEnv: "127.0.0.1:8080", noProxyEnv: "localhost, 127.0.0.1", wantTypeOf: direct{}},
56 {allProxyEnv: "ftp://example.com:8000", noProxyEnv: "localhost, 127.0.0.1", wantTypeOf: direct{}},
57 {allProxyEnv: "socks5://example.com:8080", noProxyEnv: "localhost, 127.0.0.1", wantTypeOf: &PerHost{}},
58 {allProxyEnv: "irc://example.com:8000", wantTypeOf: dummyDialer{}},
59 {noProxyEnv: "localhost, 127.0.0.1", wantTypeOf: direct{}},
60 {wantTypeOf: direct{}},
63 for _, tt := range proxyFromEnvTests {
64 os.Setenv("ALL_PROXY", tt.allProxyEnv)
65 os.Setenv("NO_PROXY", tt.noProxyEnv)
66 ResetCachedEnvironment()
68 d := FromEnvironment()
69 if got, want := fmt.Sprintf("%T", d), fmt.Sprintf("%T", tt.wantTypeOf); got != want {
70 t.Errorf("%v: got type = %T, want %T", tt, d, tt.wantTypeOf)
75 func TestFromURL(t *testing.T) {
76 endSystem, err := net.Listen("tcp", "127.0.0.1:0")
78 t.Fatalf("net.Listen failed: %v", err)
80 defer endSystem.Close()
81 gateway, err := net.Listen("tcp", "127.0.0.1:0")
83 t.Fatalf("net.Listen failed: %v", err)
89 go socks5Gateway(t, gateway, endSystem, socks5Domain, &wg)
91 url, err := url.Parse("socks5://user:password@" + gateway.Addr().String())
93 t.Fatalf("url.Parse failed: %v", err)
95 proxy, err := FromURL(url, Direct)
97 t.Fatalf("FromURL failed: %v", err)
99 _, port, err := net.SplitHostPort(endSystem.Addr().String())
101 t.Fatalf("net.SplitHostPort failed: %v", err)
103 if c, err := proxy.Dial("tcp", "localhost:"+port); err != nil {
104 t.Fatalf("FromURL.Dial failed: %v", err)
112 func TestSOCKS5(t *testing.T) {
113 endSystem, err := net.Listen("tcp", "127.0.0.1:0")
115 t.Fatalf("net.Listen failed: %v", err)
117 defer endSystem.Close()
118 gateway, err := net.Listen("tcp", "127.0.0.1:0")
120 t.Fatalf("net.Listen failed: %v", err)
122 defer gateway.Close()
124 var wg sync.WaitGroup
126 go socks5Gateway(t, gateway, endSystem, socks5IP4, &wg)
128 proxy, err := SOCKS5("tcp", gateway.Addr().String(), nil, Direct)
130 t.Fatalf("SOCKS5 failed: %v", err)
132 if c, err := proxy.Dial("tcp", endSystem.Addr().String()); err != nil {
133 t.Fatalf("SOCKS5.Dial failed: %v", err)
141 func socks5Gateway(t *testing.T, gateway, endSystem net.Listener, typ byte, wg *sync.WaitGroup) {
144 c, err := gateway.Accept()
146 t.Errorf("net.Listener.Accept failed: %v", err)
151 b := make([]byte, 32)
153 if typ == socks5Domain {
158 if _, err := io.ReadFull(c, b[:n]); err != nil {
159 t.Errorf("io.ReadFull failed: %v", err)
162 if _, err := c.Write([]byte{socks5Version, socks5AuthNone}); err != nil {
163 t.Errorf("net.Conn.Write failed: %v", err)
166 if typ == socks5Domain {
171 if _, err := io.ReadFull(c, b[:n]); err != nil {
172 t.Errorf("io.ReadFull failed: %v", err)
175 if b[0] != socks5Version || b[1] != socks5Connect || b[2] != 0x00 || b[3] != typ {
176 t.Errorf("got an unexpected packet: %#02x %#02x %#02x %#02x", b[0], b[1], b[2], b[3])
179 if typ == socks5Domain {
180 copy(b[:5], []byte{socks5Version, 0x00, 0x00, socks5Domain, 9})
181 b = append(b, []byte("localhost")...)
183 copy(b[:4], []byte{socks5Version, 0x00, 0x00, socks5IP4})
185 host, port, err := net.SplitHostPort(endSystem.Addr().String())
187 t.Errorf("net.SplitHostPort failed: %v", err)
190 b = append(b, []byte(net.ParseIP(host).To4())...)
191 p, err := strconv.Atoi(port)
193 t.Errorf("strconv.Atoi failed: %v", err)
196 b = append(b, []byte{byte(p >> 8), byte(p)}...)
197 if _, err := c.Write(b); err != nil {
198 t.Errorf("net.Conn.Write failed: %v", err)
203 func ResetProxyEnv() {
204 for _, env := range []*envOnce{allProxyEnv, noProxyEnv} {
205 for _, v := range env.names {
209 ResetCachedEnvironment()
212 func ResetCachedEnvironment() {