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// SPDX-FileCopyrightText: 2019 Linus Jahn <lnj@kaidan.im>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
#include "QXmppClient.h"
#include "QXmppClient_p.h"
#include "QXmppConstants_p.h"
#include "QXmppOutgoingClient.h"
#include "QXmppStartTlsPacket.h"
#include "QXmppStreamFeatures.h"
#include "QXmppTlsManager_p.h"
#include <QDomElement>
#include <QSslSocket>
/// \cond
QXmppTlsManager::QXmppTlsManager() = default;
bool QXmppTlsManager::handleStanza(const QDomElement &stanza)
{
if (QXmppStreamFeatures::isStreamFeatures(stanza) && !clientStream()->socket()->isEncrypted()) {
QXmppStreamFeatures features;
features.parse(stanza);
// determine TLS mode to use
const QXmppConfiguration::StreamSecurityMode localSecurity = client()->configuration().streamSecurityMode();
const QXmppStreamFeatures::Mode remoteSecurity = features.tlsMode();
if (!clientStream()->socket()->supportsSsl() &&
(localSecurity == QXmppConfiguration::TLSRequired ||
remoteSecurity == QXmppStreamFeatures::Required)) {
warning("Disconnecting since TLS is required, but SSL support is not available");
client()->disconnectFromServer();
return true;
}
if (localSecurity == QXmppConfiguration::TLSRequired &&
remoteSecurity == QXmppStreamFeatures::Disabled) {
warning("Disconnecting since TLS is required, but not supported by the server");
client()->disconnectFromServer();
return true;
}
if (clientStream()->socket()->supportsSsl() &&
localSecurity != QXmppConfiguration::TLSDisabled &&
remoteSecurity != QXmppStreamFeatures::Disabled) {
// enable TLS since it is supported by both parties
client()->sendPacket(QXmppStartTlsPacket());
return true;
}
}
if (QXmppStartTlsPacket::isStartTlsPacket(stanza, QXmppStartTlsPacket::Proceed)) {
debug("Starting encryption");
clientStream()->socket()->startClientEncryption();
return true;
}
return false;
}
/// \endcond
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