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