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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/xmpp/xmpptask.h"
#include "talk/xmpp/xmppclient.h"
#include "talk/xmpp/xmppengine.h"
#include "talk/xmpp/constants.h"
namespace buzz {
XmppTask::XmppTask(Task * parent, XmppEngine::HandlerLevel level)
: Task(parent), client_(NULL) {
XmppClient * client = (XmppClient*)parent->GetParent(XMPP_CLIENT_TASK_CODE);
client_ = client;
id_ = client->NextId();
client->AddXmppTask(this, level);
client->SignalDisconnected.connect(this, &XmppTask::OnDisconnect);
}
XmppTask::~XmppTask() {
StopImpl();
}
void
XmppTask::StopImpl() {
while (NextStanza() != NULL) {}
if (client_) {
client_->RemoveXmppTask(this);
client_->SignalDisconnected.disconnect(this);
client_ = NULL;
}
}
XmppReturntqStatus
XmppTask::SendStanza(const XmlElement * stanza) {
if (client_ == NULL)
return XMPP_RETURN_BADSTATE;
return client_->SendStanza(stanza);
}
XmppReturntqStatus
XmppTask::SendStanzaError(const XmlElement * element_original,
XmppStanzaError code,
const std::string & text) {
if (client_ == NULL)
return XMPP_RETURN_BADSTATE;
return client_->SendStanzaError(element_original, code, text);
}
void
XmppTask::Stop() {
StopImpl();
Task::Stop();
}
void
XmppTask::OnDisconnect() {
Error();
}
void
XmppTask::QueueStanza(const XmlElement * stanza) {
stanza_queue_.push_back(new XmlElement(*stanza));
Wake();
}
const XmlElement *
XmppTask::NextStanza() {
XmlElement * result = NULL;
if (!stanza_queue_.empty()) {
result = stanza_queue_.front();
stanza_queue_.pop_front();
}
next_stanza_.reset(result);
return result;
}
XmlElement *
XmppTask::MakeIq(const std::string & type,
const buzz::Jid & to, const std::string id) {
XmlElement * result = new XmlElement(TQN_IQ);
if (!type.empty())
result->AddAttr(TQN_TYPE, type);
if (to != JID_EMPTY)
result->AddAttr(TQN_TO, to.Str());
if (!id.empty())
result->AddAttr(TQN_ID, id);
return result;
}
XmlElement *
XmppTask::MakeIqResult(const XmlElement * query) {
XmlElement * result = new XmlElement(TQN_IQ);
result->AddAttr(TQN_TYPE, STR_RESULT);
if (query->HasAttr(TQN_FROM)) {
result->AddAttr(TQN_TO, query->Attr(TQN_FROM));
}
result->AddAttr(TQN_ID, query->Attr(TQN_ID));
return result;
}
bool
XmppTask::MatchResponseIq(const XmlElement * stanza,
const Jid & to, const std::string & id) {
if (stanza->Name() != TQN_IQ)
return false;
if (stanza->Attr(TQN_ID) != id)
return false;
Jid from(stanza->Attr(TQN_FROM));
if (from != to) {
Jid me = client_->jid();
// we address the server as "", but it is legal for the server
// to identify itself with "domain" or "myself@domain"
if (to != JID_EMPTY) {
return false;
}
if (from != Jid(me.domain()) && from != me.BareJid()) {
return false;
}
}
return true;
}
bool
XmppTask::MatchRequestIq(const XmlElement * stanza,
const std::string & type, const TQName & qn) {
if (stanza->Name() != TQN_IQ)
return false;
if (stanza->Attr(TQN_TYPE) != type)
return false;
if (stanza->FirstNamed(qn) == NULL)
return false;
return true;
}
}
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