proxy over kcp

testing/scenarios/feature_test.go

@@ -231,6 +231,156 @@ func TestProxy(t *testing.T) {
 	CloseAllServers()
 }
 
+func TestProxyOverKCP(t *testing.T) {
+	assert := assert.On(t)
+
+	tcpServer := tcp.Server{
+		MsgProcessor: xor,
+	}
+	dest, err := tcpServer.Start()
+	assert.Error(err).IsNil()
+	defer tcpServer.Close()
+
+	serverUserID := protocol.NewID(uuid.New())
+	serverPort := pickPort()
+	serverConfig := &core.Config{
+		Inbound: []*core.InboundConnectionConfig{
+			{
+				PortRange: v2net.SinglePortRange(serverPort),
+				ListenOn:  v2net.NewIPOrDomain(v2net.LocalHostIP),
+				Settings: serial.ToTypedMessage(&inbound.Config{
+					User: []*protocol.User{
+						{
+							Account: serial.ToTypedMessage(&vmess.Account{
+								Id: serverUserID.String(),
+							}),
+						},
+					},
+				}),
+				StreamSettings: &internet.StreamConfig{
+					Protocol: internet.TransportProtocol_MKCP,
+				},
+			},
+		},
+		Outbound: []*core.OutboundConnectionConfig{
+			{
+				Settings: serial.ToTypedMessage(&freedom.Config{}),
+			},
+		},
+	}
+
+	proxyUserID := protocol.NewID(uuid.New())
+	proxyPort := pickPort()
+	proxyConfig := &core.Config{
+		Inbound: []*core.InboundConnectionConfig{
+			{
+				PortRange: v2net.SinglePortRange(proxyPort),
+				ListenOn:  v2net.NewIPOrDomain(v2net.LocalHostIP),
+				Settings: serial.ToTypedMessage(&inbound.Config{
+					User: []*protocol.User{
+						{
+							Account: serial.ToTypedMessage(&vmess.Account{
+								Id: proxyUserID.String(),
+							}),
+						},
+					},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundConnectionConfig{
+			{
+				Settings: serial.ToTypedMessage(&freedom.Config{}),
+				StreamSettings: &internet.StreamConfig{
+					Protocol: internet.TransportProtocol_MKCP,
+				},
+			},
+		},
+	}
+
+	clientPort := pickPort()
+	clientConfig := &core.Config{
+		Inbound: []*core.InboundConnectionConfig{
+			{
+				PortRange: v2net.SinglePortRange(clientPort),
+				ListenOn:  v2net.NewIPOrDomain(v2net.LocalHostIP),
+				Settings: serial.ToTypedMessage(&dokodemo.Config{
+					Address: v2net.NewIPOrDomain(dest.Address),
+					Port:    uint32(dest.Port),
+					NetworkList: &v2net.NetworkList{
+						Network: []v2net.Network{v2net.Network_TCP},
+					},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundConnectionConfig{
+			{
+				Settings: serial.ToTypedMessage(&outbound.Config{
+					Receiver: []*protocol.ServerEndpoint{
+						{
+							Address: v2net.NewIPOrDomain(v2net.LocalHostIP),
+							Port:    uint32(serverPort),
+							User: []*protocol.User{
+								{
+									Account: serial.ToTypedMessage(&vmess.Account{
+										Id: serverUserID.String(),
+									}),
+								},
+							},
+						},
+					},
+				}),
+				ProxySettings: &internet.ProxyConfig{
+					Tag: "proxy",
+				},
+				StreamSettings: &internet.StreamConfig{
+					Protocol: internet.TransportProtocol_MKCP,
+				},
+			},
+			{
+				Tag: "proxy",
+				Settings: serial.ToTypedMessage(&outbound.Config{
+					Receiver: []*protocol.ServerEndpoint{
+						{
+							Address: v2net.NewIPOrDomain(v2net.LocalHostIP),
+							Port:    uint32(proxyPort),
+							User: []*protocol.User{
+								{
+									Account: serial.ToTypedMessage(&vmess.Account{
+										Id: proxyUserID.String(),
+									}),
+								},
+							},
+						},
+					},
+				}),
+			},
+		},
+	}
+
+	assert.Error(InitializeServerConfig(serverConfig)).IsNil()
+	assert.Error(InitializeServerConfig(proxyConfig)).IsNil()
+	assert.Error(InitializeServerConfig(clientConfig)).IsNil()
+
+	conn, err := net.DialTCP("tcp", nil, &net.TCPAddr{
+		IP:   []byte{127, 0, 0, 1},
+		Port: int(clientPort),
+	})
+	assert.Error(err).IsNil()
+
+	payload := "dokodemo request."
+	nBytes, err := conn.Write([]byte(payload))
+	assert.Error(err).IsNil()
+	assert.Int(nBytes).Equals(len(payload))
+
+	response := make([]byte, 1024)
+	nBytes, err = conn.Read(response)
+	assert.Error(err).IsNil()
+	assert.Bytes(response[:nBytes]).Equals(xor([]byte(payload)))
+	assert.Error(conn.Close()).IsNil()
+
+	CloseAllServers()
+}
+
 func TestBlackhole(t *testing.T) {
 	assert := assert.On(t)