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Viewing changes to src/downloadablearchive.cpp

  • Committer: Patrick Hetu
  • Date: 2013-07-22 02:35:22 UTC
  • Revision ID: patrick.hetu@gmail.com-20130722023522-jrfmj5s6eb3mfdv8
initial test

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src/downloadablearchive.cpp
 
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/*
 
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 * evopedia: An offline Wikipedia reader.
 
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 *
 
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 * Copyright (C) 2010-2011 evopedia developers
 
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 *
 
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 * This program is free software: you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation, either version 3 of the License, or
 
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 * (at your option) any later version.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 *
 
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 */
 
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#include "downloadablearchive.h"
 
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#include <QtWidgets/QFileDialog>
 
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#include "evopediaapplication.h"
 
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DownloadableArchive::DownloadableArchive(const QString &language, const QString &date,
 
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                                         const QUrl &url, const QString &size, QObject *parent) :
 
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    Archive(parent), url(url), size(size)
 
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{
 
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    this->language = language;
 
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    this->date = date;
 
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}
 
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QString DownloadableArchive::askAndCreateDownloadDirectory()
 
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{
 
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    ArchiveManager *am((static_cast<EvopediaApplication *>(qApp))->evopedia()->getArchiveManager());
 
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    const QDir d;
 
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    QString baseDir = am->getArchivesBaseDir();
 
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    if (baseDir.isEmpty()) {
 
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        baseDir = QFileDialog::getExistingDirectory(0, tr("Select Base Download Directory For Archives"),
 
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                                                        QString(), QFileDialog::ShowDirsOnly);
 
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        if (baseDir.isEmpty())
 
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            return QString();
 
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        else
 
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            am->setArchivesBaseDir(baseDir);
 
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    }
 
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    QString downloadDirectory = QDir(baseDir).absolutePath() + "/" + QString("wikipedia_%1").arg(language);
 
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    if (!QDir(downloadDirectory).exists()) {
 
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        if (!QDir().mkpath(downloadDirectory)) {
 
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            QMessageBox::critical(0, tr("Error Downloading Torrent"),
 
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                                  tr("Unable to create directory %1.")
 
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                                  .arg(downloadDirectory));
 
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            return QString();
 
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        }
 
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    }
 
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    return downloadDirectory;
 
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}
 
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bool DownloadableArchive::startDownload()
 
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{
 
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    downloadDirectory = askAndCreateDownloadDirectory();
 
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    /* TODO2 sanity check for language and date? */
 
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    torrentFile = QString("wikipedia_%1_%2.torrent").arg(language, date);
 
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    QNetworkAccessManager* manager = new QNetworkAccessManager(this);
 
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    QObject::connect(manager, SIGNAL(finished(QNetworkReply* )),
 
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                     this, SLOT(torrentDownloadFinished(QNetworkReply* )));
 
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    manager->get(QNetworkRequest(url));
 
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    /* TODO1 indicator (progress bar, throbber) while file is downloaded */
 
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    /* TODO1 it could be possible that we have to move this code to
 
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       PartialArchive in order to achive that */
 
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    return true;
 
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}
 
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/* TODO1 download error handler */
 
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void DownloadableArchive::torrentDownloadFinished(QNetworkReply* reply) {
 
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    QFile f(downloadDirectory + "/" + torrentFile);
 
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    f.open(QIODevice::WriteOnly);
 
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    f.write(reply->readAll());
 
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    f.close();
 
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    ArchiveManager *am((static_cast<EvopediaApplication *>(qApp))->evopedia()->getArchiveManager());
 
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    PartialArchive *a = new PartialArchive(language, date, size,
 
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                                           torrentFile, downloadDirectory);
 
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    am->exchangeArchives(this, a);
 
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    a->startDownload();
 
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}