QGIS API Documentation 3.37.0-Master (df6056bf1be)
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qgsblockingnetworkrequest.h
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1/***************************************************************************
2 qgsblockingnetworkrequest.h
3 ---------------------------
4 begin : November 2018
5 copyright : (C) 2018 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15#ifndef QGSBLOCKINGNETWORKREQUEST_H
16#define QGSBLOCKINGNETWORKREQUEST_H
17
18#include "qgis_core.h"
19#include "qgsnetworkreply.h"
20#include "qgsfeedback.h"
21#include <QThread>
22#include <QObject>
23#include <functional>
24#include <QPointer>
25
26class QNetworkRequest;
27class QNetworkReply;
28
46class CORE_EXPORT QgsBlockingNetworkRequest : public QObject
47{
48 Q_OBJECT
49 public:
50
59
62
64
85 ErrorCode get( QNetworkRequest &request, bool forceRefresh = false, QgsFeedback *feedback = nullptr );
86
108 ErrorCode post( QNetworkRequest &request, QIODevice *data, bool forceRefresh = false, QgsFeedback *feedback = nullptr );
109
115 ErrorCode post( QNetworkRequest &request, const QByteArray &data, bool forceRefresh = false, QgsFeedback *feedback = nullptr );
116
137 ErrorCode head( QNetworkRequest &request, bool forceRefresh = false, QgsFeedback *feedback = nullptr );
138
156 ErrorCode put( QNetworkRequest &request, QIODevice *data, QgsFeedback *feedback = nullptr );
157
164 ErrorCode put( QNetworkRequest &request, const QByteArray &data, QgsFeedback *feedback = nullptr );
165
183 ErrorCode deleteResource( QNetworkRequest &request, QgsFeedback *feedback = nullptr );
184
188 QString errorMessage() const { return mErrorMessage; }
189
193 QgsNetworkReplyContent reply() const { return mReplyContent; }
194
199 QString authCfg() const;
200
205 void setAuthCfg( const QString &authCfg );
206
207 public slots:
208
212 void abort();
213
214 signals:
215
219 void downloadProgress( qint64, qint64 );
220
225 Q_DECL_DEPRECATED void downloadFinished() SIP_DEPRECATED;
226
231 void uploadProgress( qint64, qint64 );
232
236 void finished();
237
238 private slots:
239 void replyProgress( qint64, qint64 );
240 void replyFinished();
241 void requestTimedOut( QNetworkReply *reply );
242
243 private :
244
245 enum Method
246 {
247 Get,
248 Post,
249 Head,
250 Put,
251 Delete
252 };
253
255 QNetworkReply *mReply = nullptr;
256
257 Method mMethod = Get;
258
260 QIODevice *mPayloadData;
261
263 QString mAuthCfg;
264
266 QString mErrorMessage;
267
269 ErrorCode mErrorCode = NoError;
270
271 QgsNetworkReplyContent mReplyContent;
272
274 bool mIsAborted = false;
275
277 bool mForceRefresh = false;
278
280 bool mTimedout = false;
281
283 bool mGotNonEmptyResponse = false;
284
285 int mExpirationSec = 30;
286
287 QPointer< QgsFeedback > mFeedback;
288
289 ErrorCode doRequest( Method method, QNetworkRequest &request, bool forceRefresh, QgsFeedback *feedback = nullptr );
290
291 QString errorMessageFailedAuth();
292
293 void sendRequestToNetworkAccessManager( const QNetworkRequest &request );
294
295 void abortIfNotPartialContentReturned();
296};
297
299#ifndef SIP_RUN
300
301class DownloaderThread : public QThread
302{
303 Q_OBJECT
304
305 public:
306 DownloaderThread( const std::function<void()> &function, QObject *parent = nullptr )
307 : QThread( parent )
308 , mFunction( function )
309 {
310 }
311
312 void run() override
313 {
314 mFunction();
315 }
316
317 private:
318 std::function<void()> mFunction;
319};
320
321#endif
323
324#endif // QGSBLOCKINGNETWORKREQUEST_H
A thread safe class for performing blocking (sync) network requests, with full support for QGIS proxy...
void downloadProgress(qint64, qint64)
Emitted when when data arrives during a request.
Q_DECL_DEPRECATED void downloadFinished()
Emitted once a request has finished downloading.
QString errorMessage() const
Returns the error message string, after a get(), post(), head() or put() request has been made.
@ NetworkError
A network error occurred.
@ ServerExceptionError
An exception was raised by the server.
@ NoError
No error was encountered.
@ TimeoutError
Timeout was reached before a reply was received.
QgsNetworkReplyContent reply() const
Returns the content of the network reply, after a get(), post(), head() or put() request has been mad...
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition qgsfeedback.h:44
Encapsulates a network reply within a container which is inexpensive to copy and safe to pass between...
#define SIP_DEPRECATED
Definition qgis_sip.h:106