blob: 5c4c65340e3bd6527d5874580bf315e83f1ac358 [file] [log] [blame]
/*
* libjingle
* Copyright 2004--2006, 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"
#include "talk/xmpp/ratelimitmanager.h"
namespace buzz {
RateLimitManager task_rate_manager;
XmppTask::XmppTask(TaskParent* parent, XmppEngine::HandlerLevel level)
: Task(parent), client_(NULL) {
#ifdef _DEBUG
debug_force_timeout_ = false;
#endif
XmppClient* client =
static_cast<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;
}
}
XmppReturnStatus XmppTask::SendStanza(const XmlElement* stanza) {
if (client_ == NULL)
return XMPP_RETURN_BADSTATE;
return client_->SendStanza(stanza);
}
XmppReturnStatus 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) {
#ifdef _DEBUG
if (debug_force_timeout_)
return;
#endif
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(QN_IQ);
if (!type.empty())
result->AddAttr(QN_TYPE, type);
if (to != JID_EMPTY)
result->AddAttr(QN_TO, to.Str());
if (!id.empty())
result->AddAttr(QN_ID, id);
return result;
}
XmlElement* XmppTask::MakeIqResult(const XmlElement * query) {
XmlElement* result = new XmlElement(QN_IQ);
result->AddAttr(QN_TYPE, STR_RESULT);
if (query->HasAttr(QN_FROM)) {
result->AddAttr(QN_TO, query->Attr(QN_FROM));
}
result->AddAttr(QN_ID, query->Attr(QN_ID));
return result;
}
bool XmppTask::MatchResponseIq(const XmlElement* stanza,
const Jid& to,
const std::string& id) {
if (stanza->Name() != QN_IQ)
return false;
if (stanza->Attr(QN_ID) != id)
return false;
return MatchStanzaFrom(stanza, to);
}
bool XmppTask::MatchStanzaFrom(const XmlElement* stanza,
const Jid& to) {
Jid from(stanza->Attr(QN_FROM));
if (from == to)
return true;
// We address the server as "", check if we are doing so here.
if (to != JID_EMPTY)
return false;
// It is legal for the server to identify itself with "domain" or
// "myself@domain"
Jid me = client_->jid();
return (from == Jid(me.domain())) || (from == me.BareJid());
}
bool XmppTask::MatchRequestIq(const XmlElement* stanza,
const std::string& type,
const QName& qn) {
if (stanza->Name() != QN_IQ)
return false;
if (stanza->Attr(QN_TYPE) != type)
return false;
if (stanza->FirstNamed(qn) == NULL)
return false;
return true;
}
bool XmppTask::VerifyTaskRateLimit(const std::string task_name, int max_count,
int per_x_seconds) {
return task_rate_manager.VerifyRateLimit(task_name, max_count,
per_x_seconds);
}
}