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/*
* libjingle
* Copyright 2010, 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/jingleinfotask.h"
#include "talk/base/socketaddress.h"
#include "talk/xmpp/constants.h"
#include "talk/xmpp/xmppclient.h"
#include "talk/xmpp/xmpptask.h"
namespace buzz {
class JingleInfoTask::JingleInfoGetTask : public XmppTask {
public:
explicit JingleInfoGetTask(XmppTaskParentInterface* parent)
: XmppTask(parent, XmppEngine::HL_SINGLE),
done_(false) {}
virtual int ProcessStart() {
talk_base::scoped_ptr<XmlElement> get(
MakeIq(STR_GET, Jid(), task_id()));
get->AddElement(new XmlElement(QN_JINGLE_INFO_QUERY, true));
if (SendStanza(get.get()) != XMPP_RETURN_OK) {
return STATE_ERROR;
}
return STATE_RESPONSE;
}
virtual int ProcessResponse() {
if (done_)
return STATE_DONE;
return STATE_BLOCKED;
}
protected:
virtual bool HandleStanza(const XmlElement * stanza) {
if (!MatchResponseIq(stanza, Jid(), task_id()))
return false;
if (stanza->Attr(QN_TYPE) != STR_RESULT)
return false;
// Queue the stanza with the parent so these don't get handled out of order
JingleInfoTask* parent = static_cast<JingleInfoTask*>(GetParent());
parent->QueueStanza(stanza);
// Wake ourselves so we can go into the done state
done_ = true;
Wake();
return true;
}
bool done_;
};
void JingleInfoTask::RefreshJingleInfoNow() {
JingleInfoGetTask* get_task = new JingleInfoGetTask(this);
get_task->Start();
}
bool
JingleInfoTask::HandleStanza(const XmlElement * stanza) {
if (!MatchRequestIq(stanza, "set", QN_JINGLE_INFO_QUERY))
return false;
// only respect relay push from the server
Jid from(stanza->Attr(QN_FROM));
if (!from.IsEmpty() &&
!from.BareEquals(GetClient()->jid()) &&
from != Jid(GetClient()->jid().domain()))
return false;
QueueStanza(stanza);
return true;
}
int
JingleInfoTask::ProcessStart() {
std::vector<std::string> relay_hosts;
std::vector<talk_base::SocketAddress> stun_hosts;
std::string relay_token;
const XmlElement * stanza = NextStanza();
if (stanza == NULL)
return STATE_BLOCKED;
const XmlElement * query = stanza->FirstNamed(QN_JINGLE_INFO_QUERY);
if (query == NULL)
return STATE_START;
const XmlElement *stun = query->FirstNamed(QN_JINGLE_INFO_STUN);
if (stun) {
for (const XmlElement *server = stun->FirstNamed(QN_JINGLE_INFO_SERVER);
server != NULL; server = server->NextNamed(QN_JINGLE_INFO_SERVER)) {
std::string host = server->Attr(QN_JINGLE_INFO_HOST);
std::string port = server->Attr(QN_JINGLE_INFO_UDP);
if (host != STR_EMPTY && host != STR_EMPTY) {
stun_hosts.push_back(talk_base::SocketAddress(host, atoi(port.c_str())));
}
}
}
const XmlElement *relay = query->FirstNamed(QN_JINGLE_INFO_RELAY);
if (relay) {
relay_token = relay->TextNamed(QN_JINGLE_INFO_TOKEN);
for (const XmlElement *server = relay->FirstNamed(QN_JINGLE_INFO_SERVER);
server != NULL; server = server->NextNamed(QN_JINGLE_INFO_SERVER)) {
std::string host = server->Attr(QN_JINGLE_INFO_HOST);
if (host != STR_EMPTY) {
relay_hosts.push_back(host);
}
}
}
SignalJingleInfo(relay_token, relay_hosts, stun_hosts);
return STATE_START;
}
}
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