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/**
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This file is part of CWRT package **
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). **
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU (Lesser) General Public License as
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published by the Free Software Foundation, version 2.1 of the License.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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(Lesser) General Public License for more details. You should have
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received a copy of the GNU (Lesser) General Public License along
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with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "omadownloadbackend.h"
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#include "omaddparser.h"
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#include "downloadmanager.h"
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#include "clientdownload.h"
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#include "downloadcore.h"
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#include "downloadevent.h"
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#include <QCoreApplication>
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#include <QFileInfo>
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#ifdef Q_OS_LINUX
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#include <sys/statvfs.h>
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#endif
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#ifdef Q_OS_LINUX
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static double freeSpace(const char *path)
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#else
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static double freeSpace(const char* /*path*/)
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#endif
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{
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#ifdef Q_OS_LINUX
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struct statvfs fiData;
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if ((statvfs(path,&fiData)) < 0 )
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return 0;
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else {
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int blockSize = fiData.f_bsize/1024;
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double freeSize = (fiData.f_bavail)*blockSize;
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freeSize = freeSize/1024;
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return freeSize;
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}
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#endif
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return 0;
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}
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// private implementation
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class OMADownloadBackendPrivate {
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DM_DECLARE_PUBLIC(OMADownloadBackend);
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public:
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OMADownloadBackendPrivate();
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~OMADownloadBackendPrivate();
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DownloadCore *m_downloadCore;
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ClientDownload *m_download;
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OMADownloadDescParser *m_parser; // for parsing oma descriptor
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OMADownloadDescriptor *m_downloadDesc;
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bool m_isMediaDownload; // flag to indicate if media download is happening
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ClientDownload *m_mediaDownload; // not owned
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bool m_isUserCancelled;
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};
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OMADownloadBackendPrivate::OMADownloadBackendPrivate()
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{
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m_downloadCore = 0;
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m_download = 0;
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m_parser = 0;
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m_downloadDesc = 0;
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m_isMediaDownload = false;
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m_mediaDownload = 0;
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m_isUserCancelled = false;
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}
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OMADownloadBackendPrivate::~OMADownloadBackendPrivate()
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{
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if (m_parser) {
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delete m_parser;
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m_parser = 0;
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m_downloadDesc = 0;
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}
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if (m_mediaDownload) {
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delete m_mediaDownload;
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m_mediaDownload = NULL;
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}
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}
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OMADownloadBackend::OMADownloadBackend(DownloadCore *dlCore, ClientDownload *dl)
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:DownloadBackend(dlCore, dl)
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{
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DM_INITIALIZE(OMADownloadBackend);
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priv->m_downloadCore = dlCore;
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priv->m_download = dl;
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}
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OMADownloadBackend::~OMADownloadBackend()
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{
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DM_UNINITIALIZE(OMADownloadBackend);
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}
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int OMADownloadBackend::pause()
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{
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DM_PRIVATE(OMADownloadBackend);
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if (priv->m_isMediaDownload) {
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priv->m_mediaDownload->pause();
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setDownloadState(DlPaused);
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}
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return 0;
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}
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int OMADownloadBackend::resume()
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{
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DM_PRIVATE(OMADownloadBackend);
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priv->m_isUserCancelled = false;
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if (priv->m_isMediaDownload)
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return (priv->m_mediaDownload->resume());
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// Ready to download after the descriptor is parsed
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// capability check on the descriptor information
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if (checkDownloadDescriptor()) {
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// create download for media object
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priv->m_mediaDownload = new ClientDownload(priv->m_download->downloadManager(),
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priv->m_downloadDesc->getAttribute(OMADownloadDescObjectURI).toString(), priv->m_download->id());
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if (!priv->m_mediaDownload) {
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deleteInfo();
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return -1;
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}
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priv->m_mediaDownload->setAttribute(DlFileName, priv->m_downloadDesc->getAttribute(OMADownloadDescName));
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priv->m_mediaDownload->registerEventReceiver(this);
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priv->m_mediaDownload->start();
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priv->m_isMediaDownload = true;
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deleteInfo();
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return 0;
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}
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return -1;
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}
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int OMADownloadBackend::cancel()
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{
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DM_PRIVATE(OMADownloadBackend);
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priv->m_isUserCancelled = true;
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if (priv->m_isMediaDownload)
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priv->m_mediaDownload->cancel();
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else
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DownloadBackend::cancel();
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return 0;
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}
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QVariant OMADownloadBackend::getAttribute(DownloadAttribute attr)
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{
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DM_PRIVATE(OMADownloadBackend);
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switch(attr) {
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case OMADownloadDescriptorName:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescName);
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case OMADownloadDescriptorVersion:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescVersion);
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case OMADownloadDescriptorType:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescType);
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case OMADownloadDescriptorSize:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescSize);
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case OMADownloadDescriptorVendor:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescVendor);
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case OMADownloadDescriptorDescription:
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return priv->m_downloadDesc->getAttribute(OMADownloadDescDescription);
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case DlFileName:
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{
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if (!priv->m_isMediaDownload) {
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QString url = priv->m_downloadCore->url();
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QFileInfo fileUrl(url);
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return QVariant(fileUrl.fileName());
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} else
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return priv->m_downloadDesc->getAttribute(OMADownloadDescName);
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}
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case DlContentType:
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{
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if (!priv->m_isMediaDownload)
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return DownloadBackend::getAttribute(DlContentType);
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else
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return priv->m_mediaDownload->getAttribute(DlContentType);
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}
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default:
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return DownloadBackend::getAttribute(attr);
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}
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return QVariant();
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}
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int OMADownloadBackend::setAttribute(DownloadAttribute attr, const QVariant& value)
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{
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return DownloadBackend::setAttribute(attr, value);
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}
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// stores the data in storage
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void OMADownloadBackend::store(QByteArray /*data*/, bool /*lastChunk=false*/)
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{
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return;
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}
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// deletes the storage
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void OMADownloadBackend::deleteStore()
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{
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return;
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}
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// returns the size of stored data
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qint64 OMADownloadBackend::storedDataSize()
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{
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return 0;
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}
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void OMADownloadBackend::bytesRecieved(qint64 /*bytesRecieved*/, qint64 /*bytesTotal*/)
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{
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//Do nothing. This is here to avoid this signal to reach to base class' slot.
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return;
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}
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void OMADownloadBackend::bytesUploaded(qint64 bytesUploaded, qint64 bytesTotal)
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{
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DM_PRIVATE(OMADownloadBackend);
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// once data is uploaded, cancel the transaction
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if (bytesUploaded == bytesTotal)
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priv->m_downloadCore->abort() ;
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}
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void OMADownloadBackend::handleFinished()
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{
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DM_PRIVATE(OMADownloadBackend);
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QString contentType = priv->m_downloadCore->contentType();
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if (contentType == OMA_CONTENT_TYPE) {
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bool bSucceeded = parseDownloadDescriptor();
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if (bSucceeded) {
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priv->m_downloadDesc = priv->m_parser->downloadDescriptor();
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QString objectURI = priv->m_downloadDesc->getAttribute(OMADownloadDescObjectURI).toString();
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if (objectURI.isEmpty()) {
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("905 Attribute Mismatch"));
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priv->m_downloadCore->setLastError(QNetworkReply::UnknownContentError);
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priv->m_downloadCore->setLastErrorString(tr("No ObjectURI"));
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setDownloadState(DlFailed);
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postEvent(Error, NULL);
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return;
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}
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setDownloadState(DlPaused);
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postEvent(OMADownloadDescriptorReady, NULL);
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} else {
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priv->m_downloadDesc = priv->m_parser->downloadDescriptor();
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("906 Invalid descriptor"));
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priv->m_downloadCore->setLastError(QNetworkReply::UnknownContentError);
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priv->m_downloadCore->setLastErrorString(tr("Invalid Descriptor"));
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setDownloadState(DlFailed);
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postEvent(Error, NULL);
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}
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}
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}
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bool OMADownloadBackend::parseDownloadDescriptor()
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{
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DM_PRIVATE(OMADownloadBackend);
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priv->m_parser = new OMADownloadDescParser();
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QXmlInputSource source(priv->m_downloadCore->reply());
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QXmlSimpleReader reader;
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reader.setContentHandler(priv->m_parser);
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reader.setErrorHandler(priv->m_parser);
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return reader.parse(source);
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}
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// capability check on the descriptor
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bool OMADownloadBackend::checkDownloadDescriptor()
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{
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DM_PRIVATE(OMADownloadBackend);
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QString version = priv->m_downloadDesc->getAttribute(OMADownloadDescVersion).toString();
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if (! version.isEmpty() && (version != OMA_VERSION_1)) {
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("951 Invalid DDVersion"));
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priv->m_downloadCore->setLastError(QNetworkReply::UnknownContentError);
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priv->m_downloadCore->setLastErrorString(tr("951 Invalid DDVersion"));
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setDownloadState(DlFailed);
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postEvent(Error, NULL);
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return false;
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}
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#ifdef Q_OS_LINUX
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// "Size" check needs to be done
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double fileSize = priv->m_downloadDesc->getAttribute(OMADownloadDescSize).toDouble();
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double mbFactor = 1024*1024;
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fileSize = fileSize/mbFactor; //fileSize in MB
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double spaceLeft = freeSpace(ROOT_PATH); //spaze left in MB
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if (fileSize > spaceLeft) {
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("901 Insufficient memory"));
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priv->m_downloadCore->setLastError(QNetworkReply::UnknownContentError);
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priv->m_downloadCore->setLastErrorString(tr("901 Insufficient Memory"));
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setDownloadState(DlFailed);
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postEvent(Error, NULL);
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return false;
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}
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#endif
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return true;
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}
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bool OMADownloadBackend::event(QEvent *event)
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{
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DM_PRIVATE(OMADownloadBackend);
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DEventType type = (DEventType)event->type();
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switch(type) {
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case Started:
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break;
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case HeaderReceived:
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{
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// handling the events from media object downloads
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// Check the mismatch in total size returned by server with the size given in the descriptor.
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//This piece of code is commented as-of-now. when needed in future , will be uncommented
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/*int totalSize = dl->getAttribute(DlTotalSize).toInt();
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if (priv->m_downloadDesc->getAttribute(OMADownloadDescSize).toInt() != totalSize)
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{
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("905 Attribute Mismatch"));
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if (dl)
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{
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dl->setError("905 Attribute Mismatch");
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dl->cancel();
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dl->setDownloadState(DlFailed);
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dl->postEvent(Error, NULL);
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}
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return true;
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}*/
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// Check the mismatch in content type returned by server with the content type given in the descriptor.
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QString contentType = priv->m_mediaDownload->getAttribute(DlContentType).toString();
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if (priv->m_downloadDesc->getAttribute(OMADownloadDescType).toString() != contentType) {
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// media object download cannot be proceeded
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if (priv->m_mediaDownload) {
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priv->m_mediaDownload->setError("905 Attribute Mismatch");
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priv->m_mediaDownload->cancel();
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priv->m_mediaDownload->setDownloadState(DlFailed);
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priv->m_mediaDownload->postEvent(Error, NULL);
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}
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break;
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}
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}
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case Progress:
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{
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QVariant tSize = priv->m_mediaDownload->getAttribute(DlTotalSize);
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setTotalSize(tSize.toInt());
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QVariant curDlsize = priv->m_mediaDownload->getAttribute(DlDownloadedSize);
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setDownloadedDataSize(curDlsize.toInt());
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setDownloadState(DlInprogress);
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postEvent(Progress, NULL);
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break;
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}
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case NetworkLoss:
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{
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postEvent(NetworkLoss, NULL);
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break;
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}
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case Cancelled:
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{
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if (priv->m_isUserCancelled)
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("902 User Cancelled"));
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setDownloadState(DlCancelled);
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postEvent(Cancelled, NULL);
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break;
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}
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case Completed:
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{
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("900 Success "));
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setDownloadState(DlCompleted);
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postEvent(Completed, NULL);
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break;
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}
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case Error:
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{
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priv->m_downloadCore->post(priv->m_downloadDesc->getAttribute(OMADownloadDescInstallNotifyURI).toString(), QByteArray("905 Attribute Mismatch"));
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priv->m_downloadCore->setLastError(QNetworkReply::UnknownContentError);
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priv->m_downloadCore->setLastErrorString(tr("905 Attribute Mismatch"));
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setDownloadState(DlFailed);
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postEvent(Error, NULL);
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break;
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}
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default:
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break;
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}
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return true;
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}
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