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/*
* Copyright (C) 2008-2010 The QXmpp developers
*
* Author:
* Jeremy Lainé
*
* Source:
* http://code.google.com/p/qxmpp
*
* This file is a part of QXmpp library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
#include <QDomElement>
#include <QSslKey>
#include <QSslSocket>
#include "QXmppConstants.h"
#include "QXmppDialback.h"
#include "QXmppOutgoingServer.h"
#include "QXmppStreamFeatures.h"
#include "QXmppUtils.h"
class QXmppOutgoingServerPrivate
{
public:
QString domain;
QString incomingId;
QString incomingKey;
QString localStreamKey;
bool ready;
};
/// Constructs a new outgoing server-to-server stream.
///
/// \param socket
/// \param domain the local domain
/// \param parent the parent object
///
QXmppOutgoingServer::QXmppOutgoingServer(const QString &domain, QObject *parent)
: QXmppOutgoingClient(parent),
d(new QXmppOutgoingServerPrivate)
{
d->domain = domain;
d->ready = false;
configuration().setKeepAliveInterval(0);
}
/// Destroys the stream.
///
QXmppOutgoingServer::~QXmppOutgoingServer()
{
delete d;
}
void QXmppOutgoingServer::handleStart()
{
QString data = QString("<?xml version='1.0'?><stream:stream"
" xmlns='%1' xmlns:db='%2' xmlns:stream='%3' version='1.0'>").arg(
ns_server,
ns_server_dialback,
ns_stream);
sendData(data.toUtf8());
}
void QXmppOutgoingServer::handleStanza(const QDomElement &stanza)
{
const QString ns = stanza.namespaceURI();
if(QXmppStreamFeatures::isStreamFeatures(stanza))
{
QXmppStreamFeatures features;
features.parse(stanza);
if (features.securityMode() != QXmppConfiguration::TLSDisabled)
{
// let QXmppOutgoingClient handle TLS
QXmppOutgoingClient::handleStanza(stanza);
}
else if (!d->localStreamKey.isEmpty())
{
// send dialback key
QXmppDialback dialback;
dialback.setCommand(QXmppDialback::Result);
dialback.setFrom(d->domain);
dialback.setTo(configuration().domain());
dialback.setKey(d->localStreamKey);
sendPacket(dialback);
}
else if (!d->incomingId.isEmpty() && !d->incomingKey.isEmpty())
{
// send dialback verify
QXmppDialback verify;
verify.setCommand(QXmppDialback::Verify);
verify.setId(d->incomingId);
verify.setTo(configuration().domain());
verify.setFrom(d->domain);
verify.setKey(d->incomingKey);
sendPacket(verify);
}
}
else if (ns == ns_tls)
{
if (stanza.tagName() == "proceed")
{
debug("Starting encryption");
socket()->startClientEncryption();
return;
}
}
else if (QXmppDialback::isDialback(stanza))
{
QXmppDialback response;
response.parse(stanza);
// check the request is valid
if (response.from().isEmpty() ||
response.to() != d->domain ||
response.type().isEmpty())
{
warning("Invalid dialback response received");
return;
}
if (response.command() == QXmppDialback::Result)
{
if (response.type() == "valid")
{
info("Outgoing stream is ready");
d->ready = true;
emit connected();
}
}
else if (response.command() == QXmppDialback::Verify)
{
emit dialbackResponseReceived(response);
}
}
else
{
bool handled = false;
emit elementReceived(stanza, handled);
}
}
bool QXmppOutgoingServer::isConnected() const
{
return d->ready;
}
QString QXmppOutgoingServer::localStreamKey() const
{
return d->localStreamKey;
}
void QXmppOutgoingServer::setLocalStreamKey(const QString &key)
{
d->localStreamKey = key;
}
void QXmppOutgoingServer::setVerify(const QString &id, const QString &key)
{
d->incomingId = id;
d->incomingKey = key;
}
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