kdeconnect-kde/core/backends/lan/uploadjob.cpp
Aleix Pol ef98fb4587 Fix file transfer under SSL
Introduces a big fat buffer :(
Actually test the trasfers :)
Takes QSslSocket causistic into account, for some reason QNAM refuses to
mark as finished when the QSslSocket (through QIODevice) closes.
It would be good to look into dropping the QBuffer, doing so with the test
in place will help.
2016-06-22 17:49:45 +02:00

136 lines
4.1 KiB
C++

/*
* Copyright 2013 Albert Vaca <albertvaka@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "uploadjob.h"
#include "lanlinkprovider.h"
#include <qalgorithms.h>
#include <QtGlobal>
#include <kdeconnectconfig.h>
#include "core_debug.h"
UploadJob::UploadJob(const QSharedPointer<QIODevice>& source, const QString& deviceId)
: KJob()
{
// TODO: initialize in constructor
mInput = source;
mServer = new Server(this);
mSocket = nullptr;
mPort = 0;
// We will use this info if link is on ssl, to send encrypted payload
this->mDeviceId = deviceId;
connect(mInput.data(), SIGNAL(readyRead()), this, SLOT(startUploading()));
connect(mInput.data(), SIGNAL(aboutToClose()), this, SLOT(aboutToClose()));
}
void UploadJob::start()
{
mPort = 1739;
while (!mServer->listen(QHostAddress::Any, mPort)) {
mPort++;
if (mPort > 1764) { //No ports available?
qCWarning(KDECONNECT_CORE) << "Error opening a port in range 1739-1764 for file transfer";
mPort = 0;
emitResult();
return;
}
}
connect(mServer, SIGNAL(newConnection()), this, SLOT(newConnection()));
}
void UploadJob::newConnection()
{
if (!mInput->open(QIODevice::ReadOnly)) {
qCWarning(KDECONNECT_CORE) << "error when opening the input to upload";
return; //TODO: Handle error, clean up...
}
Server* server = qobject_cast<Server*>(sender());
// FIXME : It is called again when payload sending is finished. Unsolved mystery :(
disconnect(mServer, SIGNAL(newConnection()), this, SLOT(newConnection()));
mSocket = server->nextPendingConnection();
mSocket->setParent(this);
connect(mSocket, &QSslSocket::disconnected, this, &UploadJob::cleanup);
connect(mSocket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketFailed(QAbstractSocket::SocketError)));
connect(mSocket, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(sslErrors(QList<QSslError>)));
connect(mSocket, &QSslSocket::encrypted, this, &UploadJob::startUploading);
// connect(mSocket, &QAbstractSocket::stateChanged, [](QAbstractSocket::SocketState state){ qDebug() << "statechange" << state; });
LanLinkProvider::configureSslSocket(mSocket, mDeviceId, true);
mSocket->startServerEncryption();
}
void UploadJob::startUploading()
{
while ( mInput->bytesAvailable() > 0 )
{
qint64 bytes = qMin(mInput->bytesAvailable(), (qint64)4096);
int w = mSocket->write(mInput->read(bytes));
if (w<0) {
qCWarning(KDECONNECT_CORE) << "error when writing data to upload" << bytes << mInput->bytesAvailable();
break;
}
else
{
while ( mSocket->flush() );
}
}
mInput->close();
}
void UploadJob::aboutToClose()
{
// qDebug() << "closing...";
mSocket->disconnectFromHost();
}
void UploadJob::cleanup()
{
mSocket->close();
// qDebug() << "closed!";
emitResult();
}
QVariantMap UploadJob::transferInfo()
{
Q_ASSERT(mPort != 0);
return {{"port", mPort}};
}
void UploadJob::socketFailed(QAbstractSocket::SocketError error)
{
qWarning() << "error uploading" << error;
setError(2);
emitResult();
mSocket->close();
}
void UploadJob::sslErrors(const QList<QSslError>& errors)
{
qWarning() << "ssl errors" << errors;
setError(1);
emitResult();
mSocket->close();
}