Golang Destination.Port方法代碼示例

func (this *VMessOutboundHandler) Dispatch(target v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
	defer ray.OutboundInput().Release()
	defer ray.OutboundOutput().Close()

	var rec *protocol.ServerSpec
	var conn internet.Connection

	err := retry.Timed(5, 100).On(func() error {
		rec = this.serverPicker.PickServer()
		rawConn, err := internet.Dial(this.meta.Address, rec.Destination(), this.meta.StreamSettings)
		if err != nil {
			return err
		}
		conn = rawConn

		return nil
	})
	if err != nil {
		log.Error("VMess|Outbound: Failed to find an available destination:", err)
		return err
	}
	log.Info("VMess|Outbound: Tunneling request to ", target, " via ", rec.Destination())

	command := protocol.RequestCommandTCP
	if target.IsUDP() {
		command = protocol.RequestCommandUDP
	}
	request := &protocol.RequestHeader{
		Version: encoding.Version,
		User:    rec.PickUser(),
		Command: command,
		Address: target.Address(),
		Port:    target.Port(),
		Option:  protocol.RequestOptionChunkStream,
	}

	defer conn.Close()

	conn.SetReusable(true)
	if conn.Reusable() { // Conn reuse may be disabled on transportation layer
		request.Option.Set(protocol.RequestOptionConnectionReuse)
	}

	input := ray.OutboundInput()
	output := ray.OutboundOutput()

	var requestFinish, responseFinish sync.Mutex
	requestFinish.Lock()
	responseFinish.Lock()

	session := encoding.NewClientSession(protocol.DefaultIDHash)

	go this.handleRequest(session, conn, request, payload, input, &requestFinish)
	go this.handleResponse(session, conn, request, rec.Destination(), output, &responseFinish)

	requestFinish.Lock()
	responseFinish.Lock()
	return nil
}

func socks5UDPRequest(address v2net.Destination, payload []byte) []byte {
	request := make([]byte, 0, 1024)
	request = append(request, 0, 0, 0)
	request = appendAddress(request, address.Address())
	request = address.Port().Bytes(request)
	request = append(request, payload...)
	return request
}

// Private: Visible for testing.
func (this *Router) ResolveIP(dest v2net.Destination) []v2net.Destination {
	ips := this.dnsServer.Get(dest.Address().Domain())
	if len(ips) == 0 {
		return nil
	}
	dests := make([]v2net.Destination, len(ips))
	for idx, ip := range ips {
		if dest.IsTCP() {
			dests[idx] = v2net.TCPDestination(v2net.IPAddress(ip), dest.Port())
		} else {
			dests[idx] = v2net.UDPDestination(v2net.IPAddress(ip), dest.Port())
		}
	}
	return dests
}

func DialKCP(src v2net.Address, dest v2net.Destination) (internet.Connection, error) {
	udpDest := v2net.UDPDestination(dest.Address(), dest.Port())
	log.Info("KCP|Dialer: Dialing KCP to ", udpDest)
	conn, err := internet.DialToDest(src, udpDest)
	if err != nil {
		log.Error("KCP|Dialer: Failed to dial to dest: ", err)
		return nil, err
	}

	cpip, err := effectiveConfig.GetAuthenticator()
	if err != nil {
		log.Error("KCP|Dialer: Failed to create authenticator: ", err)
		return nil, err
	}
	conv := uint16(atomic.AddUint32(&globalConv, 1))
	session := NewConnection(conv, conn, conn.LocalAddr().(*net.UDPAddr), conn.RemoteAddr().(*net.UDPAddr), cpip)
	session.FetchInputFrom(conn)

	return session, nil
}

func calcPto(dst v2net.Destination) string {

	if effectiveConfig.Pto != "" {
		return effectiveConfig.Pto
	}

	switch dst.Port().Value() {
	/*
		Since the value is not given explicitly,
		We are guessing it now.

		HTTP Port:
				80
				8080
				8880
				2052
				2082
				2086
				2095

		HTTPS Port:
				443
				2053
				2083
				2087
				2096
				8443

		if the port you are using is not well-known,
		specify it to avoid this process.

		We will	return "CRASH"turn "unknown" if we can't guess it, cause Dial to fail.
	*/
	case 80, 8080, 8880, 2052, 2082, 2086, 2095:
		return "ws"
	case 443, 2053, 2083, 2087, 2096, 8443:
		return "wss"
	default:
		return "unknown"
	}
}

// Private: Visible for testing.
func (this *FreedomConnection) ResolveIP(destination v2net.Destination) v2net.Destination {
	if !destination.Address().Family().IsDomain() {
		return destination
	}

	ips := this.dns.Get(destination.Address().Domain())
	if len(ips) == 0 {
		log.Info("Freedom: DNS returns nil answer. Keep domain as is.")
		return destination
	}

	ip := ips[dice.Roll(len(ips))]
	var newDest v2net.Destination
	if destination.IsTCP() {
		newDest = v2net.TCPDestination(v2net.IPAddress(ip), destination.Port())
	} else {
		newDest = v2net.UDPDestination(v2net.IPAddress(ip), destination.Port())
	}
	log.Info("Freedom: Changing destination from ", destination, " to ", newDest)
	return newDest
}

func (this *PortMatcher) Apply(dest v2net.Destination) bool {
	return this.port.Contains(dest.Port())
}

func (this *UDPHub) WriteTo(payload []byte, dest v2net.Destination) (int, error) {
	return this.conn.WriteToUDP(payload, &net.UDPAddr{
		IP:   dest.Address().IP(),
		Port: int(dest.Port()),
	})
}

func socks5Request(command byte, address v2net.Destination) []byte {
	request := []byte{socks5Version, command, 0}
	request = appendAddress(request, address.Address())
	request = address.Port().Bytes(request)
	return request
}