Lomiri
CachingNetworkManagerFactory.cpp
1 /*
2  * Copyright (C) 2014 Canonical Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  */
17 
18 #include "CachingNetworkManagerFactory.h"
19 
20 #include <QNetworkDiskCache>
21 #include <QNetworkAccessManager>
22 #include <QStandardPaths>
23 
24 CachingNetworkAccessManager::CachingNetworkAccessManager(QObject *parent)
25  : QNetworkAccessManager(parent)
26 {
27  m_networkingStatus = new connectivityqt::Connectivity(QDBusConnection::sessionBus(), this);
28 }
29 
30 QNetworkReply* CachingNetworkAccessManager::createRequest(Operation op, const QNetworkRequest &request, QIODevice *outgoingData)
31 {
32  if (m_networkingStatus->status() != connectivityqt::Connectivity::Status::Online) {
33  qDebug() << "Not connected to the internet. Request for" << request.url().toString() << "will be served only from the cache.";
34  QNetworkRequest req(request);
35  req.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::AlwaysCache);
36  return QNetworkAccessManager::createRequest(op, req, outgoingData);
37  }
38 
39  return QNetworkAccessManager::createRequest(op, request, outgoingData);
40 }
41 
42 CachingNetworkManagerFactory::CachingNetworkManagerFactory()
43 {
44 }
45 
46 QNetworkAccessManager *CachingNetworkManagerFactory::create(QObject *parent) {
47  QNetworkAccessManager *manager = new CachingNetworkAccessManager(parent);
48 
49  QNetworkDiskCache* cache = new QNetworkDiskCache(manager);
50  cache->setCacheDirectory(QStringLiteral("%1/network").arg(QStandardPaths::writableLocation(QStandardPaths::CacheLocation)));
51 
52  manager->setCache(cache);
53  return manager;
54 }