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 _SESSIONMANAGERTASK_H_ 29 #define _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 36 namespace 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 41 class SessionManagerTask : public buzz::XmppTask { 42 public: SessionManagerTask(TaskParent * parent,SessionManager * session_manager)43 SessionManagerTask(TaskParent *parent, SessionManager *session_manager) 44 : buzz::XmppTask(parent, buzz::XmppEngine::HL_SINGLE) { 45 session_manager_ = session_manager; 46 } 47 ~SessionManagerTask()48 ~SessionManagerTask() { 49 } 50 51 // Turns on simple support for sending messages, using SessionSendTask. EnableOutgoingMessages()52 void EnableOutgoingMessages() { 53 session_manager_->SignalOutgoingMessage.connect( 54 this, &SessionManagerTask::OnOutgoingMessage); 55 session_manager_->SignalRequestSignaling.connect( 56 session_manager_, &SessionManager::OnSignalingReady); 57 } 58 ProcessStart()59 virtual int ProcessStart() { 60 const buzz::XmlElement *stanza = NextStanza(); 61 if (stanza == NULL) 62 return STATE_BLOCKED; 63 session_manager_->OnIncomingMessage(stanza); 64 return STATE_START; 65 } 66 67 protected: HandleStanza(const buzz::XmlElement * stanza)68 virtual bool HandleStanza(const buzz::XmlElement *stanza) { 69 if (!session_manager_->IsSessionMessage(stanza)) 70 return false; 71 // Responses are handled by the SessionSendTask that sent the request. 72 //if (stanza->Attr(buzz::QN_TYPE) != buzz::STR_SET) 73 // return false; 74 QueueStanza(stanza); 75 return true; 76 } 77 78 private: 79 SessionManager* session_manager_; 80 OnOutgoingMessage(SessionManager * manager,const buzz::XmlElement * stanza)81 void OnOutgoingMessage(SessionManager* manager, 82 const buzz::XmlElement* stanza) { 83 cricket::SessionSendTask* sender = 84 new cricket::SessionSendTask(GetParent(), session_manager_); 85 sender->Send(stanza); 86 sender->Start(); 87 } 88 }; 89 90 } // namespace cricket 91 92 #endif // _SESSIONMANAGERTASK_H_ 93