vcs.maemo.org Git - mdictionary/blob - src/plugins/xdxf/HttpDownloader.cpp

   1 /*******************************************************************************
   2
   3     This file is part of mDictionary.
   4
   5     mDictionary is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     mDictionary is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with mDictionary.  If not, see <http://www.gnu.org/licenses/>.
  17
  18     Copyright 2010 Comarch S.A.
  19
  20 *******************************************************************************/
  21
  22 /*!
  23   \file HttpDownloader.h
  24   \author Bartosz Szatkowski <bulislaw@linux.com>
  25  */
  26
  27
  28 #include "HttpDownloader.h"
  29
  30 HttpDownloader::HttpDownloader(QObject *parent) {
  31     http = new QHttp();
  32     //connect(http, SIGNAL(requestFinished(int, bool)), this,
  33      //       SLOT(getPageFinished()));
  34
  35     manager = new QNetworkAccessManager;
  36     connect(manager, SIGNAL(finished(QNetworkReply*)),
  37             SLOT(downloadFinished(QNetworkReply*)));
  38
  39     //connect(http, SIGNAL())
  40 }
  41
  42
  43 void HttpDownloader::download(QUrl url, QString file) {
  44     destFile = file;
  45     QNetworkRequest request(url);
  46     // Following line is crucial becouse sourceforge wont redirect correctly
  47     //    if no user-agent is supplied
  48     request.setRawHeader("User-Agent", "Wget/1.12 (linux-gnu)");
  49     currentReply = manager->get(request);
  50     connect(currentReply, SIGNAL(downloadProgress(qint64,qint64)),
  51                this, SIGNAL(progress(qint64,qint64)));
  52
  53 }
  54
  55 void HttpDownloader::downloadFinished(QNetworkReply *reply) {
  56
  57     disconnect(reply, SIGNAL(downloadProgress(qint64,qint64)),
  58                this, SIGNAL(progress(qint64,qint64)));
  59     if(reply->error() != QNetworkReply::NoError) {
  60         Q_EMIT error(reply->errorString());
  61         return;
  62     }
  63
  64     QUrl r = reply->attribute(QNetworkRequest::RedirectionTargetAttribute)
  65             .toUrl();
  66
  67     if(r.isValid()) {
  68        // Following redirect
  69        QNetworkRequest req;
  70        req.setRawHeader("User-Agent", "Wget/1.12 (linux-gnu)");
  71        req.setUrl(r);
  72        currentReply = manager->get(req);
  73        connect(currentReply, SIGNAL(downloadProgress(qint64,qint64)),
  74                   this, SIGNAL(progress(qint64,qint64)));
  75     }
  76     else {
  77         QFile resultFile(destFile);
  78         resultFile.open(QFile::WriteOnly);
  79         resultFile.write(reply->readAll());
  80         resultFile.close();
  81         Q_EMIT finished();
  82     }
  83 }
  84
  85
  86 void HttpDownloader::kill() {
  87     http->abort();
  88 }