170 lines
3.0 KiB
Go
170 lines
3.0 KiB
Go
package socks5
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"io"
|
|
"log"
|
|
"net"
|
|
"os"
|
|
"strings"
|
|
"testing"
|
|
)
|
|
|
|
type MockConn struct {
|
|
buf bytes.Buffer
|
|
}
|
|
|
|
func (m *MockConn) Write(b []byte) (int, error) {
|
|
return m.buf.Write(b)
|
|
}
|
|
|
|
func (m *MockConn) RemoteAddr() net.Addr {
|
|
return &net.TCPAddr{IP: []byte{127, 0, 0, 1}, Port: 65432}
|
|
}
|
|
|
|
func TestRequest_Connect(t *testing.T) {
|
|
// Create a local listener
|
|
l, err := net.Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
go func() {
|
|
conn, err := l.Accept()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
defer conn.Close()
|
|
|
|
buf := make([]byte, 4)
|
|
if _, err := io.ReadAtLeast(conn, buf, 4); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if !bytes.Equal(buf, []byte("ping")) {
|
|
t.Fatalf("bad: %v", buf)
|
|
}
|
|
conn.Write([]byte("pong"))
|
|
}()
|
|
lAddr := l.Addr().(*net.TCPAddr)
|
|
|
|
// Make server
|
|
s := &Server{config: &Config{
|
|
Rules: PermitAll(),
|
|
Resolver: DNSResolver{},
|
|
Logger: log.New(os.Stdout, "", log.LstdFlags),
|
|
}}
|
|
|
|
// Create the connect request
|
|
buf := bytes.NewBuffer(nil)
|
|
buf.Write([]byte{5, 1, 0, 1, 127, 0, 0, 1})
|
|
|
|
port := []byte{0, 0}
|
|
binary.BigEndian.PutUint16(port, uint16(lAddr.Port))
|
|
buf.Write(port)
|
|
|
|
// Send a ping
|
|
buf.Write([]byte("ping"))
|
|
|
|
// Handle the request
|
|
resp := &MockConn{}
|
|
req, err := NewRequest(buf)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if err := s.handleRequest(req, resp); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Verify response
|
|
out := resp.buf.Bytes()
|
|
expected := []byte{
|
|
5,
|
|
0,
|
|
0,
|
|
1,
|
|
127, 0, 0, 1,
|
|
0, 0,
|
|
'p', 'o', 'n', 'g',
|
|
}
|
|
|
|
// Ignore the port for both
|
|
out[8] = 0
|
|
out[9] = 0
|
|
|
|
if !bytes.Equal(out, expected) {
|
|
t.Fatalf("bad: %v %v", out, expected)
|
|
}
|
|
}
|
|
|
|
func TestRequest_Connect_RuleFail(t *testing.T) {
|
|
// Create a local listener
|
|
l, err := net.Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
go func() {
|
|
conn, err := l.Accept()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
defer conn.Close()
|
|
|
|
buf := make([]byte, 4)
|
|
if _, err := io.ReadAtLeast(conn, buf, 4); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if !bytes.Equal(buf, []byte("ping")) {
|
|
t.Fatalf("bad: %v", buf)
|
|
}
|
|
conn.Write([]byte("pong"))
|
|
}()
|
|
lAddr := l.Addr().(*net.TCPAddr)
|
|
|
|
// Make server
|
|
s := &Server{config: &Config{
|
|
Rules: PermitNone(),
|
|
Resolver: DNSResolver{},
|
|
Logger: log.New(os.Stdout, "", log.LstdFlags),
|
|
}}
|
|
|
|
// Create the connect request
|
|
buf := bytes.NewBuffer(nil)
|
|
buf.Write([]byte{5, 1, 0, 1, 127, 0, 0, 1})
|
|
|
|
port := []byte{0, 0}
|
|
binary.BigEndian.PutUint16(port, uint16(lAddr.Port))
|
|
buf.Write(port)
|
|
|
|
// Send a ping
|
|
buf.Write([]byte("ping"))
|
|
|
|
// Handle the request
|
|
resp := &MockConn{}
|
|
req, err := NewRequest(buf)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if err := s.handleRequest(req, resp); !strings.Contains(err.Error(), "blocked by rules") {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Verify response
|
|
out := resp.buf.Bytes()
|
|
expected := []byte{
|
|
5,
|
|
2,
|
|
0,
|
|
1,
|
|
0, 0, 0, 0,
|
|
0, 0,
|
|
}
|
|
|
|
if !bytes.Equal(out, expected) {
|
|
t.Fatalf("bad: %v %v", out, expected)
|
|
}
|
|
}
|