1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_P2P_CLIENT_SESSIONMANAGERTASK_H_
29#define TALK_P2P_CLIENT_SESSIONMANAGERTASK_H_
30
31#include "talk/p2p/base/sessionmanager.h"
32#include "talk/p2p/client/sessionsendtask.h"
33#include "talk/xmpp/xmppengine.h"
34#include "talk/xmpp/xmpptask.h"
35
36namespace cricket {
37
38// This class handles sending and receiving XMPP messages on behalf of the
39// SessionManager.  The sending part is handed over to SessionSendTask.
40
41class SessionManagerTask : public buzz::XmppTask {
42 public:
43  SessionManagerTask(buzz::XmppTaskParentInterface* parent,
44                     SessionManager* session_manager)
45      : buzz::XmppTask(parent, buzz::XmppEngine::HL_SINGLE),
46        session_manager_(session_manager) {
47  }
48
49  ~SessionManagerTask() {
50  }
51
52  // Turns on simple support for sending messages, using SessionSendTask.
53  void EnableOutgoingMessages() {
54    session_manager_->SignalOutgoingMessage.connect(
55        this, &SessionManagerTask::OnOutgoingMessage);
56    session_manager_->SignalRequestSignaling.connect(
57        session_manager_, &SessionManager::OnSignalingReady);
58  }
59
60  virtual int ProcessStart() {
61    const buzz::XmlElement *stanza = NextStanza();
62    if (stanza == NULL)
63      return STATE_BLOCKED;
64    session_manager_->OnIncomingMessage(stanza);
65    return STATE_START;
66  }
67
68 protected:
69  virtual bool HandleStanza(const buzz::XmlElement *stanza) {
70    if (!session_manager_->IsSessionMessage(stanza))
71      return false;
72    // Responses are handled by the SessionSendTask that sent the request.
73    //if (stanza->Attr(buzz::QN_TYPE) != buzz::STR_SET)
74    //  return false;
75    QueueStanza(stanza);
76    return true;
77  }
78
79 private:
80  void OnOutgoingMessage(SessionManager* manager,
81                         const buzz::XmlElement* stanza) {
82    cricket::SessionSendTask* sender =
83        new cricket::SessionSendTask(parent_, session_manager_);
84    sender->Send(stanza);
85    sender->Start();
86  }
87
88  SessionManager* session_manager_;
89};
90
91}  // namespace cricket
92
93#endif // TALK_P2P_CLIENT_SESSIONMANAGERTASK_H_
94