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// Copyright 2019 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_SIGNALING_FTL_MESSAGING_CLIENT_H_
#define REMOTING_SIGNALING_FTL_MESSAGING_CLIENT_H_
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "remoting/signaling/message_tracker.h"
#include "remoting/signaling/messaging_client.h"
namespace google {
namespace protobuf {
class MessageLite;
} // namespace protobuf
} // namespace google
namespace net {
struct NetworkTrafficAnnotationTag;
} // namespace net
namespace network {
class SharedURLLoaderFactory;
} // namespace network
namespace remoting {
class ProtobufHttpClient;
class MessageReceptionChannel;
class OAuthTokenGetter;
class RegistrationManager;
class ScopedProtobufHttpRequest;
class SignalingTracker;
// A class for sending and receiving messages via the FTL API.
class FtlMessagingClient final : public MessagingClient {
public:
// |signaling_tracker| is nullable.
// Raw pointers must outlive |this|.
FtlMessagingClient(
OAuthTokenGetter* token_getter,
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory,
RegistrationManager* registration_manager,
SignalingTracker* signaling_tracker = nullptr);
FtlMessagingClient(const FtlMessagingClient&) = delete;
FtlMessagingClient& operator=(const FtlMessagingClient&) = delete;
~FtlMessagingClient() override;
// MessagingClient implementations.
base::CallbackListSubscription RegisterMessageCallback(
const MessageCallback& callback) override;
void SendMessage(const std::string& destination,
const std::string& destination_registration_id,
const ftl::ChromotingMessage& message,
DoneCallback on_done) override;
void StartReceivingMessages(base::OnceClosure on_ready,
DoneCallback on_closed) override;
void StopReceivingMessages() override;
bool IsReceivingMessages() const override;
private:
friend class FtlMessagingClientTest;
FtlMessagingClient(std::unique_ptr<ProtobufHttpClient> client,
RegistrationManager* registration_manager,
std::unique_ptr<MessageReceptionChannel> channel);
template <typename CallbackFunctor>
void ExecuteRequest(const net::NetworkTrafficAnnotationTag& tag,
const std::string& path,
bool enable_retries,
std::unique_ptr<google::protobuf::MessageLite> request,
CallbackFunctor callback_functor,
DoneCallback on_done);
void OnSendMessageResponse(DoneCallback on_done,
const HttpStatus& status,
std::unique_ptr<ftl::InboxSendResponse> response);
void BatchAckMessages(const ftl::BatchAckMessagesRequest& request,
DoneCallback on_done);
void OnBatchAckMessagesResponse(
DoneCallback on_done,
const HttpStatus& status,
std::unique_ptr<ftl::BatchAckMessagesResponse> response);
std::unique_ptr<ScopedProtobufHttpRequest> OpenReceiveMessagesStream(
base::OnceClosure on_channel_ready,
const base::RepeatingCallback<
void(std::unique_ptr<ftl::ReceiveMessagesResponse>)>& on_incoming_msg,
base::OnceCallback<void(const HttpStatus&)> on_channel_closed);
void RunMessageCallbacks(const ftl::InboxMessage& message);
void OnMessageReceived(const ftl::InboxMessage& message);
std::unique_ptr<ProtobufHttpClient> client_;
raw_ptr<RegistrationManager> registration_manager_;
std::unique_ptr<MessageReceptionChannel> reception_channel_;
MessageCallbackList callback_list_;
MessageTracker message_tracker_;
};
} // namespace remoting
#endif // REMOTING_SIGNALING_FTL_MESSAGING_CLIENT_H_
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