bool QgsWcsCapabilities::sendRequest( QString const & url )
{
QgsDebugMsg( "url = " + url );
mError = "";
QNetworkRequest request( url );
setAuthorization( request );
request.setAttribute( QNetworkRequest::CacheSaveControlAttribute, true );
request.setAttribute( QNetworkRequest::CacheLoadControlAttribute, mCacheLoadControl );
QgsDebugMsg( QString( "mCacheLoadControl = %1" ).arg( mCacheLoadControl ) );
QgsDebugMsg( QString( "getcapabilities: %1" ).arg( url ) );
mCapabilitiesReply = QgsNetworkAccessManager::instance()->get( request );
connect( mCapabilitiesReply, SIGNAL( finished() ), this, SLOT( capabilitiesReplyFinished() ) );
connect( mCapabilitiesReply, SIGNAL( downloadProgress( qint64, qint64 ) ), this, SLOT( capabilitiesReplyProgress( qint64, qint64 ) ) );
while ( mCapabilitiesReply )
{
QCoreApplication::processEvents( QEventLoop::ExcludeUserInputEvents );
}
if ( mCapabilitiesResponse.isEmpty() )
{
if ( mError.isEmpty() )
{
mErrorFormat = "text/plain";
mError = tr( "empty capabilities document" );
}
return false;
}
if ( mCapabilitiesResponse.startsWith( "<html>" ) ||
mCapabilitiesResponse.startsWith( "<HTML>" ) )
{
mErrorFormat = "text/html";
mError = mCapabilitiesResponse;
return false;
}
return true;
}
void QgsWcsCapabilities::capabilitiesReplyFinished()
{
if ( mCapabilitiesReply->error() == QNetworkReply::NoError )
{
QVariant redirect = mCapabilitiesReply->attribute( QNetworkRequest::RedirectionTargetAttribute );
if ( !redirect.isNull() )
{
emit statusChanged( tr( "Capabilities request redirected." ) );
QNetworkRequest request( redirect.toUrl() );
setAuthorization( request );
request.setAttribute( QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferNetwork );
request.setAttribute( QNetworkRequest::CacheSaveControlAttribute, true );
mCapabilitiesReply->deleteLater();
QgsDebugMsg( QString( "redirected getcapabilities: %1" ).arg( redirect.toString() ) );
mCapabilitiesReply = QgsNetworkAccessManager::instance()->get( request );
connect( mCapabilitiesReply, SIGNAL( finished() ), this, SLOT( capabilitiesReplyFinished() ) );
connect( mCapabilitiesReply, SIGNAL( downloadProgress( qint64, qint64 ) ), this, SLOT( capabilitiesReplyProgress( qint64, qint64 ) ) );
return;
}
mCapabilitiesResponse = mCapabilitiesReply->readAll();
if ( mCapabilitiesResponse.isEmpty() )
{
mErrorFormat = "text/plain";
mError = tr( "empty of capabilities: %1" ).arg( mCapabilitiesReply->errorString() );
}
}
else
{
// Resend request if AlwaysCache
QNetworkRequest request = mCapabilitiesReply->request();
if ( request.attribute( QNetworkRequest::CacheLoadControlAttribute ).toInt() == QNetworkRequest::AlwaysCache )
{
QgsDebugMsg( "Resend request with PreferCache" );
request.setAttribute( QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache );
mCapabilitiesReply->deleteLater();
mCapabilitiesReply = QgsNetworkAccessManager::instance()->get( request );
connect( mCapabilitiesReply, SIGNAL( finished() ), this, SLOT( capabilitiesReplyFinished() ) );
connect( mCapabilitiesReply, SIGNAL( downloadProgress( qint64, qint64 ) ), this, SLOT( capabilitiesReplyProgress( qint64, qint64 ) ) );
return;
}
mErrorFormat = "text/plain";
mError = tr( "Download of capabilities failed: %1" ).arg( mCapabilitiesReply->errorString() );
QgsMessageLog::logMessage( mError, tr( "WCS" ) );
mCapabilitiesResponse.clear();
}
mCapabilitiesReply->deleteLater();
mCapabilitiesReply = 0;
}
bool QgsWcsCapabilities::sendRequest( QString const & url )
{
QgsDebugMsg( "url = " + url );
mError = "";
QNetworkRequest request( url );
if ( !setAuthorization( request ) )
{
mError = tr( "Download of capabilities failed: network request update failed for authentication config" );
QgsMessageLog::logMessage( mError, tr( "WCS" ) );
return false;
}
request.setAttribute( QNetworkRequest::CacheSaveControlAttribute, true );
request.setAttribute( QNetworkRequest::CacheLoadControlAttribute, mCacheLoadControl );
QgsDebugMsg( QString( "mCacheLoadControl = %1" ).arg( mCacheLoadControl ) );
QgsDebugMsg( QString( "getcapabilities: %1" ).arg( url ) );
mCapabilitiesReply = QgsNetworkAccessManager::instance()->get( request );
if ( !setAuthorizationReply( mCapabilitiesReply ) )
{
mCapabilitiesReply->deleteLater();
mCapabilitiesReply = nullptr;
mError = tr( "Download of capabilities failed: network reply update failed for authentication config" );
QgsMessageLog::logMessage( mError, tr( "WCS" ) );
return false;
}
connect( mCapabilitiesReply, SIGNAL( finished() ), this, SLOT( capabilitiesReplyFinished() ) );
connect( mCapabilitiesReply, SIGNAL( downloadProgress( qint64, qint64 ) ), this, SLOT( capabilitiesReplyProgress( qint64, qint64 ) ) );
QEventLoop loop;
connect( this, SIGNAL( downloadFinished() ), &loop, SLOT( quit() ) );
loop.exec( QEventLoop::ExcludeUserInputEvents );
if ( mCapabilitiesResponse.isEmpty() )
{
if ( mError.isEmpty() )
{
mErrorFormat = "text/plain";
mError = tr( "empty capabilities document" );
}
return false;
}
if ( mCapabilitiesResponse.startsWith( "<html>" ) ||
mCapabilitiesResponse.startsWith( "<HTML>" ) )
{
mErrorFormat = "text/html";
mError = mCapabilitiesResponse;
return false;
}
return true;
}
