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/* Ricochet - https://ricochet.im/
* Copyright (C) 2014, John Brooks <john.brooks@dereferenced.net>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the names of the copyright owners nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER OR CONTRIBUTORS 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.
*/
/* Through the QQmlNetworkAccessManagerFactory below, all network requests
* created via QML will be passed to this object; including, for example,
* <img> tags parsed in rich Text items.
*
* Ricochet's UI does not directly cause network requests for any reason. These
* are always a potentially deanonymizing bug. This object will block them,
* and assert if appropriate.
*/
#include <QDebug>
class BlockedNetworkAccessManager : public QNetworkAccessManager
{
public:
BlockedNetworkAccessManager(QObject *parent)
: QNetworkAccessManager(parent)
{
setProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QLatin1String("0.0.0.0"), 0));
}
protected:
virtual QNetworkReply *createRequest(Operation op, const QNetworkRequest &req, QIODevice *outgoingData = 0)
{
qCritical() << "QML attempted to load a network resource from" << req.url() << " - this is potentially an input sanitization flaw.";
return QNetworkAccessManager::createRequest(op, QNetworkRequest(), outgoingData);
}
};
class NetworkAccessBlockingFactory : public QQmlNetworkAccessManagerFactory
{
public:
virtual QNetworkAccessManager *create(QObject *parent)
{
return new BlockedNetworkAccessManager(parent);
}
};
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