| /* |
| * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_LIBJINGLE_SESSION_SESSIONSENDTASK_H_ |
| #define WEBRTC_LIBJINGLE_SESSION_SESSIONSENDTASK_H_ |
| |
| #include "webrtc/libjingle/session/sessionmanager.h" |
| #include "webrtc/libjingle/xmpp/constants.h" |
| #include "webrtc/libjingle/xmpp/xmppclient.h" |
| #include "webrtc/libjingle/xmpp/xmppengine.h" |
| #include "webrtc/libjingle/xmpp/xmpptask.h" |
| #include "webrtc/base/common.h" |
| |
| namespace cricket { |
| |
| // The job of this task is to send an IQ stanza out (after stamping it with |
| // an ID attribute) and then wait for a response. If not response happens |
| // within 5 seconds, it will signal failure on a SessionManager. If an error |
| // happens it will also signal failure. If, however, the send succeeds this |
| // task will quietly go away. |
| |
| class SessionSendTask : public buzz::XmppTask { |
| public: |
| SessionSendTask(buzz::XmppTaskParentInterface* parent, |
| SessionManager* session_manager) |
| : buzz::XmppTask(parent, buzz::XmppEngine::HL_SINGLE), |
| session_manager_(session_manager) { |
| set_timeout_seconds(15); |
| session_manager_->SignalDestroyed.connect( |
| this, &SessionSendTask::OnSessionManagerDestroyed); |
| } |
| |
| virtual ~SessionSendTask() { |
| SignalDone(this); |
| } |
| |
| void Send(const buzz::XmlElement* stanza) { |
| ASSERT(stanza_.get() == NULL); |
| |
| // This should be an IQ of type set, result, or error. In the first case, |
| // we supply an ID. In the others, it should be present. |
| ASSERT(stanza->Name() == buzz::QN_IQ); |
| ASSERT(stanza->HasAttr(buzz::QN_TYPE)); |
| if (stanza->Attr(buzz::QN_TYPE) == "set") { |
| ASSERT(!stanza->HasAttr(buzz::QN_ID)); |
| } else { |
| ASSERT((stanza->Attr(buzz::QN_TYPE) == "result") || |
| (stanza->Attr(buzz::QN_TYPE) == "error")); |
| ASSERT(stanza->HasAttr(buzz::QN_ID)); |
| } |
| |
| stanza_.reset(new buzz::XmlElement(*stanza)); |
| if (stanza_->HasAttr(buzz::QN_ID)) { |
| set_task_id(stanza_->Attr(buzz::QN_ID)); |
| } else { |
| stanza_->SetAttr(buzz::QN_ID, task_id()); |
| } |
| } |
| |
| void OnSessionManagerDestroyed() { |
| // If the session manager doesn't exist anymore, we should still try to |
| // send the message, but avoid calling back into the SessionManager. |
| session_manager_ = NULL; |
| } |
| |
| sigslot::signal1<SessionSendTask *> SignalDone; |
| |
| protected: |
| virtual int OnTimeout() { |
| if (session_manager_ != NULL) { |
| session_manager_->OnFailedSend(stanza_.get(), NULL); |
| } |
| |
| return XmppTask::OnTimeout(); |
| } |
| |
| virtual int ProcessStart() { |
| SendStanza(stanza_.get()); |
| if (stanza_->Attr(buzz::QN_TYPE) == buzz::STR_SET) { |
| return STATE_RESPONSE; |
| } else { |
| return STATE_DONE; |
| } |
| } |
| |
| virtual int ProcessResponse() { |
| const buzz::XmlElement* next = NextStanza(); |
| if (next == NULL) |
| return STATE_BLOCKED; |
| |
| if (session_manager_ != NULL) { |
| if (next->Attr(buzz::QN_TYPE) == buzz::STR_RESULT) { |
| session_manager_->OnIncomingResponse(stanza_.get(), next); |
| } else { |
| session_manager_->OnFailedSend(stanza_.get(), next); |
| } |
| } |
| |
| return STATE_DONE; |
| } |
| |
| virtual bool HandleStanza(const buzz::XmlElement *stanza) { |
| if (!MatchResponseIq(stanza, |
| buzz::Jid(stanza_->Attr(buzz::QN_TO)), task_id())) |
| return false; |
| if (stanza->Attr(buzz::QN_TYPE) == buzz::STR_RESULT || |
| stanza->Attr(buzz::QN_TYPE) == buzz::STR_ERROR) { |
| QueueStanza(stanza); |
| return true; |
| } |
| return false; |
| } |
| |
| private: |
| SessionManager *session_manager_; |
| rtc::scoped_ptr<buzz::XmlElement> stanza_; |
| }; |
| |
| } |
| |
| #endif // WEBRTC_P2P_CLIENT_SESSIONSENDTASK_H_ |