| // Copyright 2020 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_BASE_PROTOBUF_HTTP_STREAM_REQUEST_H_ |
| #define REMOTING_BASE_PROTOBUF_HTTP_STREAM_REQUEST_H_ |
| |
| #include "base/functional/bind.h" |
| #include "base/functional/callback.h" |
| #include "base/memory/raw_ptr.h" |
| #include "base/timer/timer.h" |
| #include "remoting/base/protobuf_http_request_base.h" |
| #include "services/network/public/cpp/simple_url_loader_stream_consumer.h" |
| |
| namespace google { |
| namespace protobuf { |
| class MessageLite; |
| } // namespace protobuf |
| } // namespace google |
| |
| namespace remoting { |
| |
| class ProtobufHttpClient; |
| class ProtobufHttpStatus; |
| class ProtobufHttpStreamParser; |
| |
| // A server streaming request. |
| class ProtobufHttpStreamRequest final |
| : public ProtobufHttpRequestBase, |
| public network::SimpleURLLoaderStreamConsumer { |
| public: |
| template <typename MessageType> |
| using MessageCallback = |
| base::RepeatingCallback<void(std::unique_ptr<MessageType> message)>; |
| using StreamClosedCallback = |
| base::OnceCallback<void(const ProtobufHttpStatus& status)>; |
| |
| static constexpr base::TimeDelta kStreamReadyTimeoutDuration = |
| base::Seconds(30); |
| |
| explicit ProtobufHttpStreamRequest( |
| std::unique_ptr<ProtobufHttpRequestConfig> config); |
| ~ProtobufHttpStreamRequest() override; |
| |
| // Sets a callback that gets called when the stream is ready to receive data. |
| void SetStreamReadyCallback(base::OnceClosure callback); |
| |
| // Sets a callback that gets called when the stream is closed. |
| void SetStreamClosedCallback(StreamClosedCallback callback); |
| |
| // Sets the callback to be called every time a new message is received. |
| // |MessageType| needs to be a protobuf message type. |
| template <typename MessageType> |
| void SetMessageCallback(const MessageCallback<MessageType>& callback) { |
| default_message_ = &MessageType::default_instance(); |
| message_callback_ = base::BindRepeating( |
| [](MessageCallback<MessageType> callback, |
| std::unique_ptr<google::protobuf::MessageLite> generic_message) { |
| std::move(callback).Run(std::unique_ptr<MessageType>( |
| static_cast<MessageType*>(generic_message.release()))); |
| }, |
| callback); |
| } |
| |
| private: |
| friend class ProtobufHttpClient; |
| |
| // ProtobufHttpStreamParser callbacks. |
| void OnMessage(const std::string& message); |
| void OnStreamClosed(const ProtobufHttpStatus& status); |
| |
| // ProtobufHttpRequestBase implementations. |
| void OnAuthFailed(const ProtobufHttpStatus& status) override; |
| void StartRequestInternal( |
| network::mojom::URLLoaderFactory* loader_factory) override; |
| base::TimeDelta GetRequestTimeoutDuration() const override; |
| |
| // network::SimpleURLLoaderStreamConsumer implementations. |
| void OnDataReceived(base::StringPiece string_piece, |
| base::OnceClosure resume) override; |
| void OnComplete(bool success) override; |
| void OnRetry(base::OnceClosure start_retry) override; |
| |
| void OnStreamReadyTimeout(); |
| |
| // Used to create new response message instances. |
| raw_ptr<const google::protobuf::MessageLite> default_message_; |
| |
| std::unique_ptr<ProtobufHttpStreamParser> stream_parser_; |
| |
| base::OneShotTimer stream_ready_timeout_timer_; |
| |
| base::OnceClosure stream_ready_callback_; |
| StreamClosedCallback stream_closed_callback_; |
| base::RepeatingCallback<void(std::unique_ptr<google::protobuf::MessageLite>)> |
| message_callback_; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_BASE_PROTOBUF_HTTP_STREAM_REQUEST_H_ |