void QgsFileDownloader::startDownload()
{
QgsNetworkAccessManager* nam = QgsNetworkAccessManager::instance();
QNetworkRequest request( mUrl );
if ( mReply )
{
disconnect( mReply, &QNetworkReply::readyRead, this, &QgsFileDownloader::onReadyRead );
disconnect( mReply, &QNetworkReply::finished, this, &QgsFileDownloader::onFinished );
disconnect( mReply, &QNetworkReply::downloadProgress, this, &QgsFileDownloader::onDownloadProgress );
mReply->abort();
mReply->deleteLater();
}
mReply = nam->get( request );
connect( mReply, &QNetworkReply::readyRead, this, &QgsFileDownloader::onReadyRead );
connect( mReply, &QNetworkReply::finished, this, &QgsFileDownloader::onFinished );
connect( mReply, &QNetworkReply::downloadProgress, this, &QgsFileDownloader::onDownloadProgress );
connect( nam, &QgsNetworkAccessManager::requestTimedOut, this, &QgsFileDownloader::onRequestTimedOut, Qt::UniqueConnection );
#ifndef QT_NO_SSL
connect( nam, &QgsNetworkAccessManager::sslErrors, this, &QgsFileDownloader::onSslErrors, Qt::UniqueConnection );
#endif
if ( mGuiNotificationsEnabled )
{
mProgressDialog = new QProgressDialog();
mProgressDialog->setWindowTitle( tr( "Download" ) );
mProgressDialog->setLabelText( tr( "Downloading %1." ).arg( mFile.fileName() ) );
mProgressDialog->show();
connect( mProgressDialog, &QProgressDialog::canceled, this, &QgsFileDownloader::onDownloadCanceled );
}
}
bool QgsGlobePluginDialog::validateRemoteUri( const QString &uri, QString &errMsg ) const
{
QUrl url( uri );
QgsNetworkAccessManager *nam = QgsNetworkAccessManager::instance();
QNetworkReply *reply = nullptr;
while ( true )
{
QNetworkRequest req( url );
req.setRawHeader( "User-Agent", "Wget/1.13.4" );
reply = nam->get( req );
QTimer timer;
QEventLoop loop;
QObject::connect( &timer, SIGNAL( timeout() ), &loop, SLOT( quit() ) );
QObject::connect( reply, SIGNAL( finished() ), &loop, SLOT( quit() ) );
timer.setSingleShot( true );
timer.start( 500 );
loop.exec();
if ( reply->isRunning() )
{
// Timeout
reply->close();
delete reply;
errMsg = tr( "Timeout" );
return false;
}
QUrl redirectUrl = reply->attribute( QNetworkRequest::RedirectionTargetAttribute ).toUrl();
if ( redirectUrl.isValid() && url != redirectUrl )
{
delete reply;
url = redirectUrl;
}
else
{
break;
}
}
errMsg = reply->error() == QNetworkReply::NoError ? QString() : reply->errorString();
delete reply;
return errMsg.isEmpty();
}
bool QgsOSMDownload::start()
{
mError.clear();
if ( mQuery.isEmpty() )
{
mError = tr( "No query has been specified." );
return false;
}
if ( mReply )
{
mError = tr( "There is already a pending request for data." );
return false;
}
if ( !mFile.open( QIODevice::WriteOnly | QIODevice::Truncate ) )
{
mError = tr( "Cannot open output file: %1" ).arg( mFile.fileName() );
return false;
}
QgsNetworkAccessManager* nwam = QgsNetworkAccessManager::instance();
QUrl url( mServiceUrl );
url.addQueryItem( QStringLiteral( "data" ), mQuery );
QNetworkRequest request( url );
request.setRawHeader( "User-Agent", "QGIS" );
mReply = nwam->get( request );
connect( mReply, SIGNAL( readyRead() ), this, SLOT( onReadyRead() ) );
connect( mReply, SIGNAL( error( QNetworkReply::NetworkError ) ), this, SLOT( onError( QNetworkReply::NetworkError ) ) );
connect( mReply, SIGNAL( finished() ), this, SLOT( onFinished() ) );
connect( mReply, SIGNAL( downloadProgress( qint64, qint64 ) ), this, SIGNAL( downloadProgress( qint64, qint64 ) ) );
return true;
}
