Golang Connection.RemoteAddr方法代码示例

func (s *Server) Process(ctx context.Context, network v2net.Network, conn internet.Connection) error {
	conn.SetReusable(false)

	timedReader := v2net.NewTimeOutReader(s.config.Timeout, conn)
	reader := bufio.OriginalReaderSize(timedReader, 2048)

	request, err := http.ReadRequest(reader)
	if err != nil {
		if errors.Cause(err) != io.EOF {
			log.Warning("HTTP: Failed to read http request: ", err)
		}
		return err
	}
	log.Info("HTTP: Request to Method [", request.Method, "] Host [", request.Host, "] with URL [", request.URL, "]")
	defaultPort := v2net.Port(80)
	if strings.ToLower(request.URL.Scheme) == "https" {
		defaultPort = v2net.Port(443)
	}
	host := request.Host
	if len(host) == 0 {
		host = request.URL.Host
	}
	dest, err := parseHost(host, defaultPort)
	if err != nil {
		log.Warning("HTTP: Malformed proxy host (", host, "): ", err)
		return err
	}
	log.Access(conn.RemoteAddr(), request.URL, log.AccessAccepted, "")
	ctx = proxy.ContextWithDestination(ctx, dest)
	if strings.ToUpper(request.Method) == "CONNECT" {
		return s.handleConnect(ctx, request, reader, conn)
	} else {
		return s.handlePlainHTTP(ctx, request, reader, conn)
	}
}

func (v *Server) handleConnection(connection internet.Connection) {
	defer connection.Close()

	timedReader := v2net.NewTimeOutReader(v.config.Timeout, connection)
	reader := bufio.NewReader(timedReader)
	defer reader.Release()

	writer := bufio.NewWriter(connection)
	defer writer.Release()

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && errors.Cause(err) != protocol.Socks4Downgrade {
		if errors.Cause(err) != io.EOF {
			log.Warning("Socks: failed to read authentication: ", err)
		}
		return
	}

	clientAddr := v2net.DestinationFromAddr(connection.RemoteAddr())
	if err != nil && err == protocol.Socks4Downgrade {
		v.handleSocks4(clientAddr, reader, writer, auth4)
	} else {
		v.handleSocks5(clientAddr, reader, writer, auth)
	}
}

func (v *DokodemoDoor) HandleTCPConnection(conn internet.Connection) {
	defer conn.Close()

	var dest v2net.Destination
	if v.config.FollowRedirect {
		originalDest := GetOriginalDestination(conn)
		if originalDest.Network != v2net.Network_Unknown {
			log.Info("Dokodemo: Following redirect to: ", originalDest)
			dest = originalDest
		}
	}
	if dest.Network == v2net.Network_Unknown && v.address != nil && v.port > v2net.Port(0) {
		dest = v2net.TCPDestination(v.address, v.port)
	}

	if dest.Network == v2net.Network_Unknown {
		log.Info("Dokodemo: Unknown destination, stop forwarding...")
		return
	}
	log.Info("Dokodemo: Handling request to ", dest)

	ray := v.packetDispatcher.DispatchToOutbound(&proxy.SessionInfo{
		Source:      v2net.DestinationFromAddr(conn.RemoteAddr()),
		Destination: dest,
		Inbound:     v.meta,
	})
	defer ray.InboundOutput().Release()

	var wg sync.WaitGroup

	reader := v2net.NewTimeOutReader(v.config.Timeout, conn)
	defer reader.Release()

	wg.Add(1)
	go func() {
		v2reader := buf.NewReader(reader)
		defer v2reader.Release()

		if err := buf.PipeUntilEOF(v2reader, ray.InboundInput()); err != nil {
			log.Info("Dokodemo: Failed to transport all TCP request: ", err)
		}
		wg.Done()
		ray.InboundInput().Close()
	}()

	wg.Add(1)
	go func() {
		v2writer := buf.NewWriter(conn)
		defer v2writer.Release()

		if err := buf.PipeUntilEOF(ray.InboundOutput(), v2writer); err != nil {
			log.Info("Dokodemo: Failed to transport all TCP response: ", err)
		}
		wg.Done()
	}()

	wg.Wait()
}

func (this *DokodemoDoor) HandleTCPConnection(conn internet.Connection) {
	defer conn.Close()

	var dest v2net.Destination
	if this.config.FollowRedirect {
		originalDest := GetOriginalDestination(conn)
		if originalDest.Network != v2net.Network_Unknown {
			log.Info("Dokodemo: Following redirect to: ", originalDest)
			dest = originalDest
		}
	}
	if dest.Network == v2net.Network_Unknown && this.address != nil && this.port > v2net.Port(0) {
		dest = v2net.TCPDestination(this.address, this.port)
	}

	if dest.Network == v2net.Network_Unknown {
		log.Info("Dokodemo: Unknown destination, stop forwarding...")
		return
	}
	log.Info("Dokodemo: Handling request to ", dest)

	ray := this.packetDispatcher.DispatchToOutbound(&proxy.SessionInfo{
		Source:      v2net.DestinationFromAddr(conn.RemoteAddr()),
		Destination: dest,
		Inbound:     this.meta,
	})
	defer ray.InboundOutput().Release()

	var wg sync.WaitGroup

	reader := v2net.NewTimeOutReader(this.config.Timeout, conn)
	defer reader.Release()

	wg.Add(1)
	go func() {
		v2reader := v2io.NewAdaptiveReader(reader)
		defer v2reader.Release()

		v2io.Pipe(v2reader, ray.InboundInput())
		wg.Done()
		ray.InboundInput().Close()
	}()

	wg.Add(1)
	go func() {
		v2writer := v2io.NewAdaptiveWriter(conn)
		defer v2writer.Release()

		v2io.Pipe(ray.InboundOutput(), v2writer)
		wg.Done()
	}()

	wg.Wait()
}

func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn internet.Connection) error {
	log.Debug("Dokodemo: processing connection from: ", conn.RemoteAddr())
	conn.SetReusable(false)
	ctx = proxy.ContextWithDestination(ctx, net.Destination{
		Network: network,
		Address: d.address,
		Port:    d.port,
	})
	inboundRay := d.packetDispatcher.DispatchToOutbound(ctx)

	requestDone := signal.ExecuteAsync(func() error {
		defer inboundRay.InboundInput().Close()

		timedReader := net.NewTimeOutReader(d.config.Timeout, conn)
		chunkReader := buf.NewReader(timedReader)

		if err := buf.PipeUntilEOF(chunkReader, inboundRay.InboundInput()); err != nil {
			log.Info("Dokodemo: Failed to transport request: ", err)
			return err
		}

		return nil
	})

	responseDone := signal.ExecuteAsync(func() error {
		v2writer := buf.NewWriter(conn)

		if err := buf.PipeUntilEOF(inboundRay.InboundOutput(), v2writer); err != nil {
			log.Info("Dokodemo: Failed to transport response: ", err)
			return err
		}
		return nil
	})

	if err := signal.ErrorOrFinish2(requestDone, responseDone); err != nil {
		inboundRay.InboundInput().CloseError()
		inboundRay.InboundOutput().CloseError()
		log.Info("Dokodemo: Connection ends with ", err)
		return err
	}

	return nil
}

func (this *Server) handleConnection(conn internet.Connection) {
	defer conn.Close()
	timedReader := v2net.NewTimeOutReader(this.config.Timeout, conn)
	reader := bufio.NewReaderSize(timedReader, 2048)

	request, err := http.ReadRequest(reader)
	if err != nil {
		if err != io.EOF {
			log.Warning("HTTP: Failed to read http request: ", err)
		}
		return
	}
	log.Info("HTTP: Request to Method [", request.Method, "] Host [", request.Host, "] with URL [", request.URL, "]")
	defaultPort := v2net.Port(80)
	if strings.ToLower(request.URL.Scheme) == "https" {
		defaultPort = v2net.Port(443)
	}
	host := request.Host
	if len(host) == 0 {
		host = request.URL.Host
	}
	dest, err := parseHost(host, defaultPort)
	if err != nil {
		log.Warning("HTTP: Malformed proxy host (", host, "): ", err)
		return
	}
	log.Access(conn.RemoteAddr(), request.URL, log.AccessAccepted, "")
	session := &proxy.SessionInfo{
		Source:      v2net.DestinationFromAddr(conn.RemoteAddr()),
		Destination: dest,
		Inbound:     this.meta,
	}
	if strings.ToUpper(request.Method) == "CONNECT" {
		this.handleConnect(request, session, reader, conn)
	} else {
		this.handlePlainHTTP(request, session, reader, conn)
	}
}

func (v *VMessInboundHandler) Process(ctx context.Context, network net.Network, connection internet.Connection) error {
	connReader := net.NewTimeOutReader(8, connection)
	reader := bufio.NewReader(connReader)

	session := encoding.NewServerSession(v.clients)
	request, err := session.DecodeRequestHeader(reader)

	if err != nil {
		if errors.Cause(err) != io.EOF {
			log.Access(connection.RemoteAddr(), "", log.AccessRejected, err)
			log.Info("VMess|Inbound: Invalid request from ", connection.RemoteAddr(), ": ", err)
		}
		connection.SetReusable(false)
		return err
	}
	log.Access(connection.RemoteAddr(), request.Destination(), log.AccessAccepted, "")
	log.Info("VMess|Inbound: Received request for ", request.Destination())

	connection.SetReusable(request.Option.Has(protocol.RequestOptionConnectionReuse))

	ctx = proxy.ContextWithDestination(ctx, request.Destination())
	ctx = protocol.ContextWithUser(ctx, request.User)
	ray := v.packetDispatcher.DispatchToOutbound(ctx)

	input := ray.InboundInput()
	output := ray.InboundOutput()

	userSettings := request.User.GetSettings()
	connReader.SetTimeOut(userSettings.PayloadReadTimeout)
	reader.SetBuffered(false)

	requestDone := signal.ExecuteAsync(func() error {
		return transferRequest(session, request, reader, input)
	})

	writer := bufio.NewWriter(connection)
	response := &protocol.ResponseHeader{
		Command: v.generateCommand(ctx, request),
	}

	if connection.Reusable() {
		response.Option.Set(protocol.ResponseOptionConnectionReuse)
	}

	responseDone := signal.ExecuteAsync(func() error {
		return transferResponse(session, request, response, output, writer)
	})

	if err := signal.ErrorOrFinish2(requestDone, responseDone); err != nil {
		log.Info("VMess|Inbound: Connection ending with ", err)
		connection.SetReusable(false)
		input.CloseError()
		output.CloseError()
		return err
	}

	if err := writer.Flush(); err != nil {
		log.Info("VMess|Inbound: Failed to flush remain data: ", err)
		connection.SetReusable(false)
		return err
	}

	return nil
}

func (s *Server) handleConnection(ctx context.Context, conn internet.Connection) error {
	conn.SetReusable(false)

	timedReader := net.NewTimeOutReader(16, conn)
	bufferedReader := bufio.NewReader(timedReader)
	request, bodyReader, err := ReadTCPSession(s.user, bufferedReader)
	if err != nil {
		log.Access(conn.RemoteAddr(), "", log.AccessRejected, err)
		log.Info("Shadowsocks|Server: Failed to create request from: ", conn.RemoteAddr(), ": ", err)
		return err
	}

	bufferedReader.SetBuffered(false)

	userSettings := s.user.GetSettings()
	timedReader.SetTimeOut(userSettings.PayloadReadTimeout)

	dest := request.Destination()
	log.Access(conn.RemoteAddr(), dest, log.AccessAccepted, "")
	log.Info("Shadowsocks|Server: Tunnelling request to ", dest)

	ctx = proxy.ContextWithDestination(ctx, dest)
	ctx = protocol.ContextWithUser(ctx, request.User)
	ray := s.packetDispatcher.DispatchToOutbound(ctx)

	requestDone := signal.ExecuteAsync(func() error {
		bufferedWriter := bufio.NewWriter(conn)
		responseWriter, err := WriteTCPResponse(request, bufferedWriter)
		if err != nil {
			log.Warning("Shadowsocks|Server: Failed to write response: ", err)
			return err
		}

		payload, err := ray.InboundOutput().Read()
		if err != nil {
			return err
		}
		if err := responseWriter.Write(payload); err != nil {
			return err
		}
		payload.Release()

		if err := bufferedWriter.SetBuffered(false); err != nil {
			return err
		}

		if err := buf.PipeUntilEOF(ray.InboundOutput(), responseWriter); err != nil {
			log.Info("Shadowsocks|Server: Failed to transport all TCP response: ", err)
			return err
		}

		return nil
	})

	responseDone := signal.ExecuteAsync(func() error {
		defer ray.InboundInput().Close()

		if err := buf.PipeUntilEOF(bodyReader, ray.InboundInput()); err != nil {
			log.Info("Shadowsocks|Server: Failed to transport all TCP request: ", err)
			return err
		}
		return nil
	})

	if err := signal.ErrorOrFinish2(requestDone, responseDone); err != nil {
		log.Info("Shadowsocks|Server: Connection ends with ", err)
		ray.InboundInput().CloseError()
		ray.InboundOutput().CloseError()
		return err
	}

	return nil
}

func (this *VMessInboundHandler) HandleConnection(connection internet.Connection) {
	defer connection.Close()

	if !this.accepting {
		return
	}

	connReader := v2net.NewTimeOutReader(8, connection)
	defer connReader.Release()

	reader := v2io.NewBufferedReader(connReader)
	defer reader.Release()

	this.RLock()
	if !this.accepting {
		this.RUnlock()
		return
	}
	session := encoding.NewServerSession(this.clients)
	defer session.Release()

	request, err := session.DecodeRequestHeader(reader)
	this.RUnlock()

	if err != nil {
		if err != io.EOF {
			log.Access(connection.RemoteAddr(), "", log.AccessRejected, err)
			log.Warning("VMessIn: Invalid request from ", connection.RemoteAddr(), ": ", err)
		}
		connection.SetReusable(false)
		return
	}
	log.Access(connection.RemoteAddr(), request.Destination(), log.AccessAccepted, "")
	log.Info("VMessIn: Received request for ", request.Destination())

	connection.SetReusable(request.Option.Has(protocol.RequestOptionConnectionReuse))

	ray := this.packetDispatcher.DispatchToOutbound(this.meta, &proxy.SessionInfo{
		Source:      v2net.DestinationFromAddr(connection.RemoteAddr()),
		Destination: request.Destination(),
	})
	input := ray.InboundInput()
	output := ray.InboundOutput()
	defer input.Close()
	defer output.Release()

	var readFinish sync.Mutex
	readFinish.Lock()

	userSettings := protocol.GetUserSettings(request.User.Level)
	connReader.SetTimeOut(userSettings.PayloadReadTimeout)
	reader.SetCached(false)

	go func() {
		bodyReader := session.DecodeRequestBody(reader)
		var requestReader v2io.Reader
		if request.Option.Has(protocol.RequestOptionChunkStream) {
			requestReader = vmessio.NewAuthChunkReader(bodyReader)
		} else {
			requestReader = v2io.NewAdaptiveReader(bodyReader)
		}
		err := v2io.Pipe(requestReader, input)
		if err != io.EOF {
			connection.SetReusable(false)
		}

		requestReader.Release()
		input.Close()
		readFinish.Unlock()
	}()

	writer := v2io.NewBufferedWriter(connection)
	defer writer.Release()

	response := &protocol.ResponseHeader{
		Command: this.generateCommand(request),
	}

	if connection.Reusable() {
		response.Option.Set(protocol.ResponseOptionConnectionReuse)
	}

	session.EncodeResponseHeader(response, writer)

	bodyWriter := session.EncodeResponseBody(writer)
	var v2writer v2io.Writer = v2io.NewAdaptiveWriter(bodyWriter)
	if request.Option.Has(protocol.RequestOptionChunkStream) {
		v2writer = vmessio.NewAuthChunkWriter(v2writer)
	}

	// Optimize for small response packet
	if data, err := output.Read(); err == nil {
		if err := v2writer.Write(data); err != nil {
			connection.SetReusable(false)
		}

		writer.SetCached(false)

		err = v2io.Pipe(output, v2writer)
		if err != io.EOF {
//.........这里部分代码省略.........

func (this *Server) handleConnection(conn internet.Connection) {
	defer conn.Close()

	buffer := alloc.NewSmallBuffer()
	defer buffer.Release()

	timedReader := v2net.NewTimeOutReader(16, conn)
	defer timedReader.Release()

	bufferedReader := v2io.NewBufferedReader(timedReader)
	defer bufferedReader.Release()

	ivLen := this.config.Cipher.IVSize()
	_, err := io.ReadFull(bufferedReader, buffer.Value[:ivLen])
	if err != nil {
		if err != io.EOF {
			log.Access(conn.RemoteAddr(), "", log.AccessRejected, err)
			log.Warning("Shadowsocks: Failed to read IV: ", err)
		}
		return
	}

	iv := buffer.Value[:ivLen]
	key := this.config.Key

	stream, err := this.config.Cipher.NewDecodingStream(key, iv)
	if err != nil {
		log.Error("Shadowsocks: Failed to create decoding stream: ", err)
		return
	}

	reader := crypto.NewCryptionReader(stream, bufferedReader)

	request, err := ReadRequest(reader, NewAuthenticator(HeaderKeyGenerator(key, iv)), false)
	if err != nil {
		log.Access(conn.RemoteAddr(), "", log.AccessRejected, err)
		log.Warning("Shadowsocks: Invalid request from ", conn.RemoteAddr(), ": ", err)
		return
	}
	defer request.Release()
	bufferedReader.SetCached(false)

	userSettings := protocol.GetUserSettings(this.config.Level)
	timedReader.SetTimeOut(userSettings.PayloadReadTimeout)

	dest := v2net.TCPDestination(request.Address, request.Port)
	log.Access(conn.RemoteAddr(), dest, log.AccessAccepted, "")
	log.Info("Shadowsocks: Tunnelling request to ", dest)

	ray := this.packetDispatcher.DispatchToOutbound(this.meta, &proxy.SessionInfo{
		Source:      v2net.DestinationFromAddr(conn.RemoteAddr()),
		Destination: dest,
	})
	defer ray.InboundOutput().Release()

	var writeFinish sync.Mutex
	writeFinish.Lock()
	go func() {
		if payload, err := ray.InboundOutput().Read(); err == nil {
			payload.SliceBack(ivLen)
			rand.Read(payload.Value[:ivLen])

			stream, err := this.config.Cipher.NewEncodingStream(key, payload.Value[:ivLen])
			if err != nil {
				log.Error("Shadowsocks: Failed to create encoding stream: ", err)
				return
			}
			stream.XORKeyStream(payload.Value[ivLen:], payload.Value[ivLen:])

			conn.Write(payload.Value)
			payload.Release()

			writer := crypto.NewCryptionWriter(stream, conn)
			v2writer := v2io.NewAdaptiveWriter(writer)

			v2io.Pipe(ray.InboundOutput(), v2writer)
			writer.Release()
			v2writer.Release()
		}
		writeFinish.Unlock()
	}()

	var payloadReader v2io.Reader
	if request.OTA {
		payloadAuth := NewAuthenticator(ChunkKeyGenerator(iv))
		payloadReader = NewChunkReader(reader, payloadAuth)
	} else {
		payloadReader = v2io.NewAdaptiveReader(reader)
	}

	v2io.Pipe(payloadReader, ray.InboundInput())
	ray.InboundInput().Close()
	payloadReader.Release()

	writeFinish.Lock()
}