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// Copyright (c) 2012 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_STATUS_SERVICE_H_
#define REMOTING_HOST_HOST_STATUS_SERVICE_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "remoting/host/websocket_listener.h"
namespace base {
class DictionaryValue;
} // namespace remoting
namespace remoting {
// HostStatusService implements a WebSocket server for the remoting web app to
// use to query the current status of the host.
class HostStatusService {
public:
HostStatusService();
~HostStatusService();
// Must be called whenever state of the host changes.
void SetHostIsUp(const std::string& host_id);
void SetHostIsDown();
private:
class Connection;
friend class Connection;
// Returns true if |origin| is one of the remoting extension URLs.
static bool IsAllowedOrigin(const std::string& origin);
// Callback from WebsocketListener.
void OnNewConnection(scoped_ptr<WebSocketConnection> connection);
// Called from Connection instances when |connection| is closed and the
// Connection object should be destroyed.
void OnConnectionClosed(Connection* connection);
// Creates a status message that should be sent as a response to an incoming
// getHostState message.
scoped_ptr<base::DictionaryValue> GetStatusMessage();
WebSocketListener websocket_listener_;
std::set<Connection*> connections_;
// Host name we expect in incoming connections, e.g. "localhost:12810".
std::string service_host_name_;
// Current state of the host to provide to clients.
bool started_;
std::string host_id_;
DISALLOW_COPY_AND_ASSIGN(HostStatusService);
};
} // namespace remoting
#endif // REMOTING_HOST_HOST_STATUS_SERVICE_H_
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