| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMEOS_SERVICES_SECURE_CHANNEL_SINGLE_CLIENT_MESSAGE_PROXY_H_ |
| #define CHROMEOS_SERVICES_SECURE_CHANNEL_SINGLE_CLIENT_MESSAGE_PROXY_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/unguessable_token.h" |
| #include "chromeos/services/secure_channel/public/mojom/secure_channel.mojom.h" |
| #include "mojo/public/cpp/bindings/binding.h" |
| |
| namespace chromeos { |
| |
| namespace secure_channel { |
| |
| // Proxies messages between clients and remote devices. When messages are sent |
| // from the client, this proxy notifies its delegate, and when messages are |
| // received from the remote device, HandleReceivedMessage() should be called so |
| // that the message can be passed to the client. |
| class SingleClientMessageProxy { |
| public: |
| class Delegate { |
| public: |
| virtual ~Delegate() = default; |
| virtual void OnSendMessageRequested(const std::string& message_feaure, |
| const std::string& message_payload, |
| base::OnceClosure on_sent_callback) = 0; |
| virtual void GetConnectionMetadata( |
| base::OnceCallback<void(mojom::ConnectionMetadataPtr)> callback) = 0; |
| virtual void OnClientDisconnected( |
| const base::UnguessableToken& proxy_id) = 0; |
| }; |
| |
| virtual ~SingleClientMessageProxy(); |
| |
| // Should be called when any message is received over the connection. |
| virtual void HandleReceivedMessage(const std::string& feature, |
| const std::string& payload) = 0; |
| |
| // Should be called when the underlying connection to the remote device has |
| // been disconnected (e.g., because the other device closed the connection or |
| // because of instability on the communication channel). |
| virtual void HandleRemoteDeviceDisconnection() = 0; |
| |
| virtual const base::UnguessableToken& GetProxyId() = 0; |
| |
| protected: |
| SingleClientMessageProxy(Delegate* delegate); |
| |
| void NotifySendMessageRequested(const std::string& message_feature, |
| const std::string& message_payload, |
| base::OnceClosure on_sent_callback); |
| void NotifyClientDisconnected(); |
| void GetConnectionMetadataFromDelegate( |
| base::OnceCallback<void(mojom::ConnectionMetadataPtr)> callback); |
| |
| private: |
| Delegate* delegate_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SingleClientMessageProxy); |
| }; |
| |
| } // namespace secure_channel |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_SERVICES_SECURE_CHANNEL_SINGLE_CLIENT_MESSAGE_PROXY_H_ |