able to redirect to another destination in freedom

testing/scenarios/feature_test.go

@@ -4,6 +4,7 @@ import (
 	"net"
 	"testing"
 
+	xproxy "golang.org/x/net/proxy"
 	"v2ray.com/core"
 	"v2ray.com/core/app/proxyman"
 	"v2ray.com/core/app/router"
@@ -14,6 +15,7 @@ import (
 	"v2ray.com/core/proxy/blackhole"
 	"v2ray.com/core/proxy/dokodemo"
 	"v2ray.com/core/proxy/freedom"
+	"v2ray.com/core/proxy/socks"
 	"v2ray.com/core/proxy/vmess"
 	"v2ray.com/core/proxy/vmess/inbound"
 	"v2ray.com/core/proxy/vmess/outbound"
@@ -498,3 +500,68 @@ func TestBlackhole(t *testing.T) {
 
 	CloseAllServers()
 }
+
+func TestForward(t *testing.T) {
+	assert := assert.On(t)
+
+	tcpServer := tcp.Server{
+		MsgProcessor: xor,
+	}
+	dest, err := tcpServer.Start()
+	assert.Error(err).IsNil()
+	defer tcpServer.Close()
+
+	serverPort := pickPort()
+	serverConfig := &core.Config{
+		Inbound: []*proxyman.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortRange: v2net.SinglePortRange(serverPort),
+					Listen:    v2net.NewIPOrDomain(v2net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&socks.ServerConfig{
+					AuthType: socks.AuthType_NO_AUTH,
+					Accounts: map[string]string{
+						"Test Account": "Test Password",
+					},
+					Address:    v2net.NewIPOrDomain(v2net.LocalHostIP),
+					UdpEnabled: false,
+				}),
+			},
+		},
+		Outbound: []*proxyman.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&freedom.Config{
+					DestinationOverride: &freedom.DestinationOverride{
+						Server: &protocol.ServerEndpoint{
+							Address: v2net.NewIPOrDomain(v2net.LocalHostIP),
+							Port:    uint32(dest.Port),
+						},
+					},
+				}),
+			},
+		},
+	}
+
+	assert.Error(InitializeServerConfig(serverConfig)).IsNil()
+
+	{
+		noAuthDialer, err := xproxy.SOCKS5("tcp", v2net.TCPDestination(v2net.LocalHostIP, serverPort).NetAddr(), nil, xproxy.Direct)
+		assert.Error(err).IsNil()
+		conn, err := noAuthDialer.Dial("tcp", "google.com:80")
+		assert.Error(err).IsNil()
+
+		payload := "test payload"
+		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()
+}