// Copyright 2014 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 REMOTING_HOST_HOST_EXTENSION_SESSION_MANAGER_H_ #define REMOTING_HOST_HOST_EXTENSION_SESSION_MANAGER_H_ #include #include #include #include "base/memory/raw_ptr.h" namespace remoting { class ClientSessionDetails; class HostExtension; class HostExtensionSession; namespace protocol { class ClientStub; class ExtensionMessage; } // Helper class used to create and manage a set of HostExtensionSession // instances depending upon the set of registered HostExtensions, and the // set of capabilities negotiated between client and host. class HostExtensionSessionManager { public: using HostExtensions = std::vector; // Creates an extension manager for the specified |extensions|. HostExtensionSessionManager(const HostExtensions& extensions, ClientSessionDetails* client_session_details); HostExtensionSessionManager(const HostExtensionSessionManager&) = delete; HostExtensionSessionManager& operator=(const HostExtensionSessionManager&) = delete; virtual ~HostExtensionSessionManager(); // Returns the union of all capabilities supported by registered extensions. std::string GetCapabilities() const; // Handles completion of authentication and capabilities negotiation, creating // the set of HostExtensionSessions to match the client's capabilities. void OnNegotiatedCapabilities(protocol::ClientStub* client_stub, const std::string& capabilities); // Passes |message| to each HostExtensionSession in turn until the message // is handled, or none remain. Returns true if the message was handled. // It is not valid for more than one extension to handle the same message. bool OnExtensionMessage(const protocol::ExtensionMessage& message); private: using HostExtensionSessions = std::vector>; // Passed to HostExtensionSessions to allow them to send messages, // disconnect the session, etc. raw_ptr client_session_details_; raw_ptr client_stub_; // The HostExtensions to instantiate for the session, if it reaches the // authenticated state. HostExtensions extensions_; // The instantiated HostExtensionSessions, used to handle extension messages. HostExtensionSessions extension_sessions_; }; } // namespace remoting #endif // REMOTING_HOST_HOST_EXTENSION_SESSION_MANAGER_H_