Upstream version 7.36.149.0
[platform/framework/web/crosswalk.git] / src / remoting / client / log_to_server.h
1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef REMOTING_CLIENT_LOG_TO_SERVER_H_
6 #define REMOTING_CLIENT_LOG_TO_SERVER_H_
7
8 #include <deque>
9 #include <map>
10 #include <string>
11
12 #include "base/threading/non_thread_safe.h"
13 #include "base/time/time.h"
14 #include "remoting/client/server_log_entry.h"
15 #include "remoting/jingle_glue/signal_strategy.h"
16 #include "remoting/protocol/connection_to_host.h"
17 #include "remoting/protocol/errors.h"
18
19 namespace buzz {
20 class XmlElement;
21 }  // namespace buzz
22
23 namespace remoting {
24
25 class ChromotingStats;
26 class IqSender;
27
28 // Temporary namespace to prevent conflict with the same-named class in
29 // remoting/host when linking unittests.
30 //
31 // TODO(lambroslambrou): Remove this and factor out any shared code.
32 namespace client {
33
34 // LogToServer sends log entries to a server.
35 // The contents of the log entries are described in server_log_entry.cc.
36 // They do not contain any personally identifiable information.
37 class LogToServer : public base::NonThreadSafe,
38                     public SignalStrategy::Listener {
39  public:
40   LogToServer(ServerLogEntry::Mode mode,
41               SignalStrategy* signal_strategy,
42               const std::string& directory_bot_jid);
43   virtual ~LogToServer();
44
45   // Logs a session state change.
46   void LogSessionStateChange(protocol::ConnectionToHost::State state,
47                              protocol::ErrorCode error);
48   void LogStatistics(remoting::ChromotingStats* statistics);
49
50   // SignalStrategy::Listener interface.
51   virtual void OnSignalStrategyStateChange(
52       SignalStrategy::State state) OVERRIDE;
53   virtual bool OnSignalStrategyIncomingStanza(
54       const buzz::XmlElement* stanza) OVERRIDE;
55
56  private:
57   void Log(const ServerLogEntry& entry);
58   void SendPendingEntries();
59
60   // Generates a new random session ID.
61   void GenerateSessionId();
62
63   // Expire the session ID if the maximum duration has been exceeded.
64   void MaybeExpireSessionId();
65
66   ServerLogEntry::Mode mode_;
67   SignalStrategy* signal_strategy_;
68   scoped_ptr<IqSender> iq_sender_;
69   std::string directory_bot_jid_;
70
71   std::deque<ServerLogEntry> pending_entries_;
72
73   // A randomly generated session ID to be attached to log messages. This
74   // is regenerated at the start of a new session.
75   std::string session_id_;
76
77   // Start time of the session.
78   base::TimeTicks session_start_time_;
79
80   // Time when the session ID was generated.
81   base::TimeTicks session_id_generation_time_;
82
83   DISALLOW_COPY_AND_ASSIGN(LogToServer);
84 };
85
86 }  // namespace client
87
88 }  // namespace remoting
89
90 #endif  // REMOTING_CLIENT_LOG_TO_SERVER_H_