kdeconnect-kde/core/backends/lan/uploadjob.cpp
2016-11-26 15:12:38 +01:00

133 lines
4.2 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 <KLocalizedString>
#include "lanlinkprovider.h"
#include "kdeconnectconfig.h"
#include "core_debug.h"
UploadJob::UploadJob(const QSharedPointer<QIODevice>& source, const QString& deviceId)
: KJob()
, mInput(source)
, mServer(new Server(this))
, mSocket(nullptr)
, mPort(0)
, mDeviceId(deviceId) // We will use this info if link is on ssl, to send encrypted payload
{
connect(mInput.data(), &QIODevice::readyRead, this, &UploadJob::startUploading);
connect(mInput.data(), &QIODevice::aboutToClose, this, &UploadJob::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;
setError(1);
setErrorText(i18n("Couldn't find an available port"));
emitResult();
return;
}
}
connect(mServer, &QTcpServer::newConnection, this, &UploadJob::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, &QTcpServer::newConnection, this, &UploadJob::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();
}