22#include <QNetworkAccessManager>
23#include <QNetworkRequest>
24#include <QNetworkReply>
31 , mDownloadCanceled( false )
32 , mHttpMethod( httpMethod )
35 if ( !outputFileName.isEmpty() )
36 mFile.setFileName( outputFileName );
48 mReply->deleteLater();
56 QNetworkRequest request( mUrl );
57 request.setAttribute( QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::RedirectPolicy::NoLessSafeRedirectPolicy );
59 if ( !mAuthCfg.isEmpty() )
66 disconnect( mReply, &QNetworkReply::readyRead,
this, &QgsFileDownloader::onReadyRead );
67 disconnect( mReply, &QNetworkReply::finished,
this, &QgsFileDownloader::onFinished );
68 disconnect( mReply, &QNetworkReply::downloadProgress,
this, &QgsFileDownloader::onDownloadProgress );
70 mReply->deleteLater();
73 switch ( mHttpMethod )
77 mReply = nam->get( request );
82 mReply = nam->post( request, mData );
87 if ( !mAuthCfg.isEmpty() )
92 connect( mReply, &QNetworkReply::readyRead,
this, &QgsFileDownloader::onReadyRead );
93 connect( mReply, &QNetworkReply::finished,
this, &QgsFileDownloader::onFinished );
94 connect( mReply, &QNetworkReply::downloadProgress,
this, &QgsFileDownloader::onDownloadProgress );
97 connect( nam, &QgsNetworkAccessManager::sslErrors,
this, &QgsFileDownloader::onSslErrors, Qt::UniqueConnection );
103 mDownloadCanceled =
true;
108void QgsFileDownloader::onRequestTimedOut( QNetworkReply *reply )
110 if ( reply == mReply )
111 error( tr(
"Network request %1 timed out" ).arg( mUrl.toString() ) );
115void QgsFileDownloader::onSslErrors( QNetworkReply *reply,
const QList<QSslError> &errors )
117 if ( reply == mReply )
119 QStringList errorMessages;
120 errorMessages.reserve( errors.size() + 1 );
121 errorMessages << QStringLiteral(
"SSL Errors: " );
123 for (
const QSslError &error : errors )
124 errorMessages << error.errorString();
126 error( errorMessages );
132void QgsFileDownloader::error(
const QStringList &errorMessages )
134 for (
const QString &error : errorMessages )
142void QgsFileDownloader::error(
const QString &errorMessage )
144 error( QStringList() << errorMessage );
147void QgsFileDownloader::onReadyRead()
150 if ( mFile.fileName().isEmpty() )
152 error( tr(
"No output filename specified" ) );
155 else if ( ! mFile.isOpen() && ! mFile.open( QIODevice::WriteOnly | QIODevice::Truncate ) )
157 error( tr(
"Cannot open output file: %1" ).arg( mFile.fileName() ) );
162 const QByteArray data = mReply->readAll();
167void QgsFileDownloader::onFinished()
170 if ( ! mErrors.isEmpty() || mDownloadCanceled )
172 if ( mFile.isOpen() )
174 if ( mFile.exists() )
180 if ( mFile.isOpen() )
186 if ( mReply->error() )
189 error( tr(
"Download failed: %1" ).arg( mReply->errorString() ) );
201void QgsFileDownloader::onDownloadProgress( qint64 bytesReceived, qint64 bytesTotal )
203 if ( mDownloadCanceled )
HttpMethod
Different methods of HTTP requests.
static QgsAuthManager * authManager()
Returns the application's authentication manager instance.
bool updateNetworkRequest(QNetworkRequest &request, const QString &authcfg, const QString &dataprovider=QString())
Provider call to update a QNetworkRequest with an authentication config.
bool updateNetworkReply(QNetworkReply *reply, const QString &authcfg, const QString &dataprovider=QString())
Provider call to update a QNetworkReply with an authentication config (used to skip known SSL errors,...
void cancelDownload()
Call to abort the download and delete this object after the cancellation has been processed.
void downloadExited()
Emitted always when the downloader exits.
void downloadCanceled()
Emitted when the download was canceled by the user.
void downloadError(QStringList errorMessages)
Emitted when an error makes the download fail.
void startDownload()
Called to start the download.
QgsFileDownloader(const QUrl &url, const QString &outputFileName, const QString &authcfg=QString(), bool delayStart=false, Qgis::HttpMethod httpMethod=Qgis::HttpMethod::Get, const QByteArray &data=QByteArray())
QgsFileDownloader.
void downloadCompleted(const QUrl &url)
Emitted when the download has completed successfully.
void downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
Emitted when data are ready to be processed.
~QgsFileDownloader() override
network access manager for QGIS
static QgsNetworkAccessManager * instance(Qt::ConnectionType connectionType=Qt::BlockingQueuedConnection)
Returns a pointer to the active QgsNetworkAccessManager for the current thread.
void requestTimedOut(QgsNetworkRequestParameters request)
Emitted when a network request has timed out.
#define QgsSetRequestInitiatorClass(request, _class)