Golang protocol.ReadAuthentication函数代码示例

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

	timedReader := v2net.NewTimeOutReader(this.config.Timeout, connection)
	reader := v2io.NewBufferedReader(timedReader)
	defer reader.Release()

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

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

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

func (server *SocksServer) HandleConnection(connection *net.TCPConn) error {
	defer connection.Close()

	reader := v2net.NewTimeOutReader(120, connection)

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && err != protocol.Socks4Downgrade {
		log.Error("Socks failed to read authentication: %v", err)
		return err
	}

	if err != nil && err == protocol.Socks4Downgrade {
		return server.handleSocks4(reader, connection, auth4)
	} else {
		return server.handleSocks5(reader, connection, auth)
	}
}

func (server *SocksServer) HandleConnection(connection net.Conn) error {
	defer connection.Close()

	reader := v2net.NewTimeOutReader(4, connection)

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && !errors.HasCode(err, 1000) {
		log.Error("Socks failed to read authentication: %v", err)
		return err
	}

	if err != nil && errors.HasCode(err, 1000) {
		return server.handleSocks4(reader, connection, auth4)
	} else {
		return server.handleSocks5(reader, connection, auth)
	}
}

func (this *SocksServer) handleConnection(connection *hub.TCPConn) {
	defer connection.Close()

	reader := v2net.NewTimeOutReader(120, connection)

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

	if err != nil && err == protocol.Socks4Downgrade {
		this.handleSocks4(reader, connection, auth4)
	} else {
		this.handleSocks5(reader, connection, auth)
	}
}

func (server *SocksServer) HandleConnection(connection net.Conn) error {
	defer connection.Close()

	reader := connection.(io.Reader)

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && err != protocol.ErrorSocksVersion4 {
		log.Error("Error on reading authentication: %v", err)
		return err
	}

	var dest v2net.Destination

	// TODO refactor this part
	if err == protocol.ErrorSocksVersion4 {
		result := protocol.Socks4RequestGranted
		if auth4.Command == protocol.CmdBind {
			result = protocol.Socks4RequestRejected
		}
		socks4Response := protocol.NewSocks4AuthenticationResponse(result, auth4.Port, auth4.IP[:])
		protocol.WriteSocks4AuthenticationResponse(connection, socks4Response)

		if result == protocol.Socks4RequestRejected {
			return ErrorCommandNotSupported
		}

		dest = v2net.NewTCPDestination(v2net.IPAddress(auth4.IP[:], auth4.Port))
	} else {
		expectedAuthMethod := protocol.AuthNotRequired
		if server.config.AuthMethod == JsonAuthMethodUserPass {
			expectedAuthMethod = protocol.AuthUserPass
		}

		if !auth.HasAuthMethod(expectedAuthMethod) {
			authResponse := protocol.NewAuthenticationResponse(protocol.AuthNoMatchingMethod)
			err = protocol.WriteAuthentication(connection, authResponse)
			if err != nil {
				log.Error("Error on socksio write authentication: %v", err)
				return err
			}
			log.Warning("Client doesn't support allowed any auth methods.")
			return ErrorAuthenticationFailed
		}

		authResponse := protocol.NewAuthenticationResponse(expectedAuthMethod)
		err = protocol.WriteAuthentication(connection, authResponse)
		if err != nil {
			log.Error("Error on socksio write authentication: %v", err)
			return err
		}
		if server.config.AuthMethod == JsonAuthMethodUserPass {
			upRequest, err := protocol.ReadUserPassRequest(reader)
			if err != nil {
				log.Error("Failed to read username and password: %v", err)
				return err
			}
			status := byte(0)
			if !upRequest.IsValid(server.config.Username, server.config.Password) {
				status = byte(0xFF)
			}
			upResponse := protocol.NewSocks5UserPassResponse(status)
			err = protocol.WriteUserPassResponse(connection, upResponse)
			if err != nil {
				log.Error("Error on socksio write user pass response: %v", err)
				return err
			}
			if status != byte(0) {
				return ErrorInvalidUser
			}
		}

		request, err := protocol.ReadRequest(reader)
		if err != nil {
			log.Error("Error on reading socks request: %v", err)
			return err
		}

		response := protocol.NewSocks5Response()

		if request.Command == protocol.CmdBind || request.Command == protocol.CmdUdpAssociate {
			response := protocol.NewSocks5Response()
			response.Error = protocol.ErrorCommandNotSupported
			err = protocol.WriteResponse(connection, response)
			if err != nil {
				log.Error("Error on socksio write response: %v", err)
				return err
			}
			log.Warning("Unsupported socks command %d", request.Command)
			return ErrorCommandNotSupported
		}

		response.Error = protocol.ErrorSuccess
		response.Port = request.Port
		response.AddrType = request.AddrType
		switch response.AddrType {
		case protocol.AddrTypeIPv4:
			copy(response.IPv4[:], request.IPv4[:])
		case protocol.AddrTypeIPv6:
			copy(response.IPv6[:], request.IPv6[:])
		case protocol.AddrTypeDomain:
//.........这里部分代码省略.........

func (server *SocksServer) HandleConnection(connection net.Conn) error {
	defer connection.Close()

	reader := v2net.NewTimeOutReader(4, connection)

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && !errors.HasCode(err, 1000) {
		log.Error("Socks failed to read authentication: %v", err)
		return err
	}

	var dest v2net.Destination

	// TODO refactor this part
	if errors.HasCode(err, 1000) {
		result := protocol.Socks4RequestGranted
		if auth4.Command == protocol.CmdBind {
			result = protocol.Socks4RequestRejected
		}
		socks4Response := protocol.NewSocks4AuthenticationResponse(result, auth4.Port, auth4.IP[:])
		connection.Write(socks4Response.ToBytes(nil))

		if result == protocol.Socks4RequestRejected {
			return errors.NewInvalidOperationError("Socks4 command " + strconv.Itoa(int(auth4.Command)))
		}

		dest = v2net.NewTCPDestination(v2net.IPAddress(auth4.IP[:], auth4.Port))
	} else {
		expectedAuthMethod := protocol.AuthNotRequired
		if server.config.IsPassword() {
			expectedAuthMethod = protocol.AuthUserPass
		}

		if !auth.HasAuthMethod(expectedAuthMethod) {
			authResponse := protocol.NewAuthenticationResponse(protocol.AuthNoMatchingMethod)
			err = protocol.WriteAuthentication(connection, authResponse)
			if err != nil {
				log.Error("Socks failed to write authentication: %v", err)
				return err
			}
			log.Warning("Socks client doesn't support allowed any auth methods.")
			return errors.NewInvalidOperationError("Unsupported auth methods.")
		}

		authResponse := protocol.NewAuthenticationResponse(expectedAuthMethod)
		err = protocol.WriteAuthentication(connection, authResponse)
		if err != nil {
			log.Error("Socks failed to write authentication: %v", err)
			return err
		}
		if server.config.IsPassword() {
			upRequest, err := protocol.ReadUserPassRequest(reader)
			if err != nil {
				log.Error("Socks failed to read username and password: %v", err)
				return err
			}
			status := byte(0)
			if !upRequest.IsValid(server.config.Username, server.config.Password) {
				status = byte(0xFF)
			}
			upResponse := protocol.NewSocks5UserPassResponse(status)
			err = protocol.WriteUserPassResponse(connection, upResponse)
			if err != nil {
				log.Error("Socks failed to write user pass response: %v", err)
				return err
			}
			if status != byte(0) {
				err = errors.NewAuthenticationError(upRequest.AuthDetail())
				log.Warning(err.Error())
				return err
			}
		}

		request, err := protocol.ReadRequest(reader)
		if err != nil {
			log.Error("Socks failed to read request: %v", err)
			return err
		}

		response := protocol.NewSocks5Response()

		if request.Command == protocol.CmdBind || request.Command == protocol.CmdUdpAssociate {
			response := protocol.NewSocks5Response()
			response.Error = protocol.ErrorCommandNotSupported
			err = protocol.WriteResponse(connection, response)
			if err != nil {
				log.Error("Socks failed to write response: %v", err)
				return err
			}
			log.Warning("Unsupported socks command %d", request.Command)
			return errors.NewInvalidOperationError("Socks command " + strconv.Itoa(int(request.Command)))
		}

		response.Error = protocol.ErrorSuccess
		response.Port = request.Port
		response.AddrType = request.AddrType
		switch response.AddrType {
		case protocol.AddrTypeIPv4:
			copy(response.IPv4[:], request.IPv4[:])
		case protocol.AddrTypeIPv6:
//.........这里部分代码省略.........