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go.net/proxy: make proxy tests able to run with host protocol stack

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R=golang-dev, dave, agl
CC=golang-dev
https://golang.org/cl/7314047
This commit is contained in:
Mikio Hara
2013-02-10 10:45:18 +09:00
parent 6440e89078
commit 5a456bdb1f
1 changed files with 65 additions and 43 deletions
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108
proxy/proxy_test.go
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@@ -13,43 +13,41 @@ import (
"testing"
)
type testFromURLDialer struct {
network, addr string
}
func (t *testFromURLDialer) Dial(network, addr string) (net.Conn, error) {
t.network = network
t.addr = addr
return nil, t
}
func (t *testFromURLDialer) Error() string {
return "testFromURLDialer " + t.network + " " + t.addr
}
func TestFromURL(t *testing.T) {
u, err := url.Parse("socks5://user:password@1.2.3.4:5678")
endSystem, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("failed to parse URL: %s", err)
t.Fatalf("net.Listen failed: %v", err)
}
tp := &testFromURLDialer{}
proxy, err := FromURL(u, tp)
defer endSystem.Close()
gateway, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("FromURL failed: %s", err)
t.Fatalf("net.Listen failed: %v", err)
}
defer gateway.Close()
conn, err := proxy.Dial("tcp", "example.com:80")
if conn != nil {
t.Error("Dial unexpected didn't return an error")
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)
}
if tp, ok := err.(*testFromURLDialer); ok {
if tp.network != "tcp" || tp.addr != "1.2.3.4:5678" {
t.Errorf("Dialer connected to wrong host. Wanted 1.2.3.4:5678, got: %v", tp)
}
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 {
t.Errorf("Unexpected error from Dial: %s", err)
c.Close()
}
wg.Wait()
}
func TestSOCKS5(t *testing.T) {
@@ -64,9 +62,9 @@ func TestSOCKS5(t *testing.T) {
}
defer gateway.Close()
wg := &sync.WaitGroup{}
go socks5Gateway(t, gateway, endSystem, wg)
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 {
@@ -81,40 +79,64 @@ func TestSOCKS5(t *testing.T) {
wg.Wait()
}
func socks5Gateway(t *testing.T, gateway, endSystem net.Listener, wg *sync.WaitGroup) {
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.Fatalf("net.Listener.Accept failed: %v", err)
t.Errorf("net.Listener.Accept failed: %v", err)
return
}
defer c.Close()
b := make([]byte, 32)
if _, err := io.ReadFull(c, b[:3]); err != nil {
t.Fatalf("net.Conn.Read failed: %v", err)
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.Fatalf("net.Conn.Write failed: %v", err)
t.Errorf("net.Conn.Write failed: %v", err)
return
}
if _, err := io.ReadFull(c, b[:10]); err != nil {
t.Fatalf("net.Conn.Read failed: %v", err)
if typ == socks5Domain {
n = 16
} else {
n = 10
}
if b[0] != socks5Version || b[1] != socks5Connect || b[2] != 0x00 || b[3] != socks5IP4 {
t.Fatalf("got an unexpected packet: %v, %v, %v, %v", b[0], b[1], b[2], b[3])
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})
}
copy(b[:4], []byte{socks5Version, 0x00, 0x00, socks5IP4})
host, port, err := net.SplitHostPort(endSystem.Addr().String())
if err != nil {
t.Fatalf("net.SplitHostPort failed: %v", err)
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.Fatalf("strconv.Atoi failed: %v", err)
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.Fatalf("net.Conn.Write failed: %v", err)
t.Errorf("net.Conn.Write failed: %v", err)
return
}
}