qBittorrent/src/rss/rssdownloadrulelist.cpp
Christophe Dumez c387c15eb0 Fix possible rule saving issue
Matching articles are now previewable in the rss downloader dialog
Make sure Rss downloading is enabled before checking for matching rules
2010-11-13 19:36:46 +00:00

223 lines
6.6 KiB
C++

/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2010 Christophe Dumez
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* Contact : chris@qbittorrent.org
*/
#include <QFile>
#include <QDataStream>
#include <QDebug>
#include "rssdownloadrulelist.h"
#include "rsssettings.h"
#include "qinisettings.h"
RssDownloadRuleList* RssDownloadRuleList::m_instance = 0;
RssDownloadRuleList::RssDownloadRuleList(){
loadRulesFromStorage();
}
RssDownloadRuleList* RssDownloadRuleList::instance()
{
if(!m_instance)
m_instance = new RssDownloadRuleList;
return m_instance;
}
void RssDownloadRuleList::drop()
{
if(m_instance)
delete m_instance;
}
RssDownloadRule RssDownloadRuleList::findMatchingRule(const QString &feed_url, const QString &article_title) const
{
Q_ASSERT(RssSettings::isRssDownloadingEnabled());
QStringList rule_names = feedRules(feed_url);
foreach(const QString &rule_name, rule_names) {
RssDownloadRule rule = m_rules[rule_name];
if(rule.isEnabled() && rule.matches(article_title)) return rule;
}
return RssDownloadRule();
}
void RssDownloadRuleList::saveRulesToStorage()
{
QIniSettings qBTRSS("qBittorrent", "qBittorrent-rss");
qBTRSS.setValue("download_rules", toVariantHash());
}
void RssDownloadRuleList::loadRulesFromStorage()
{
QIniSettings qBTRSS("qBittorrent", "qBittorrent-rss");
if(qBTRSS.contains("feed_filters")) {
importFeedsInOldFormat(qBTRSS.value("feed_filters").toHash());
// Remove outdated rules
qBTRSS.remove("feed_filters");
// Save to new format
saveRulesToStorage();
return;
}
// Load from new format
loadRulesFromVariantHash(qBTRSS.value("download_rules").toHash());
}
void RssDownloadRuleList::importFeedsInOldFormat(const QHash<QString, QVariant> &rules)
{
foreach(const QString &feed_url, rules.keys()) {
importFeedRulesInOldFormat(feed_url, rules.value(feed_url).toHash());
}
}
void RssDownloadRuleList::importFeedRulesInOldFormat(const QString &feed_url, const QHash<QString, QVariant> &rules)
{
foreach(const QString &rule_name, rules.keys()) {
RssDownloadRule rule = RssDownloadRule::fromOldFormat(rules.value(rule_name).toHash(), feed_url, rule_name);
if(!rule.isValid()) continue;
// Check for rule name clash
while(m_rules.contains(rule.name())) {
rule.setName(rule.name()+"_");
}
// Add the rule to the list
saveRule(rule);
}
}
QVariantHash RssDownloadRuleList::toVariantHash() const
{
QVariantHash ret;
foreach(const RssDownloadRule &rule, m_rules.values()) {
ret.insert(rule.name(), rule.toVariantHash());
}
return ret;
}
void RssDownloadRuleList::loadRulesFromVariantHash(const QVariantHash &h)
{
foreach(const QVariant& v, h.values()) {
RssDownloadRule rule = RssDownloadRule::fromNewFormat(v.toHash());
if(!rule.name().isEmpty()) {
saveRule(rule);
}
}
}
void RssDownloadRuleList::saveRule(const RssDownloadRule &rule)
{
qDebug() << Q_FUNC_INFO << rule.name();
Q_ASSERT(rule.isValid());
if(m_rules.contains(rule.name())) {
removeRule(rule.name());
}
m_rules.insert(rule.name(), rule);
// Update feedRules hashtable
foreach(const QString &feed_url, rule.rssFeeds()) {
m_feedRules[feed_url].append(rule.name());
}
// Save rules
saveRulesToStorage();
}
void RssDownloadRuleList::removeRule(const QString &name)
{
qDebug() << Q_FUNC_INFO << name;
if(!m_rules.contains(name)) return;
const RssDownloadRule rule = m_rules.take(name);
// Update feedRules hashtable
foreach(const QString &feed_url, rule.rssFeeds()) {
m_feedRules[feed_url].removeOne(rule.name());
}
// Save rules
saveRulesToStorage();
}
void RssDownloadRuleList::renameRule(const QString &old_name, const QString &new_name)
{
if(!m_rules.contains(old_name)) return;
RssDownloadRule rule = m_rules.take(old_name);
rule.setName(new_name);
m_rules.insert(new_name, rule);
// Update feedRules hashtable
foreach(const QString &feed_url, rule.rssFeeds()) {
m_feedRules[feed_url].replace(m_feedRules[feed_url].indexOf(old_name), new_name);
}
// Save rules
saveRulesToStorage();
}
RssDownloadRule RssDownloadRuleList::getRule(const QString &name) const
{
return m_rules.value(name);
}
bool RssDownloadRuleList::serialize(const QString& path)
{
QFile f(path);
if(f.open(QIODevice::WriteOnly)) {
QDataStream out(&f);
out.setVersion(QDataStream::Qt_4_5);
out << toVariantHash();
f.close();
return true;
} else {
return false;
}
}
bool RssDownloadRuleList::unserialize(const QString &path)
{
QFile f(path);
if(f.open(QIODevice::ReadOnly)) {
QDataStream in(&f);
if(path.endsWith(".filters", Qt::CaseInsensitive)) {
// Old format (< 2.5.0)
qDebug("Old serialization format detected, processing...");
in.setVersion(QDataStream::Qt_4_3);
QVariantHash tmp;
in >> tmp;
f.close();
if(tmp.isEmpty()) return false;
qDebug("Processing was successful!");
// Unfortunately the feed_url is lost
importFeedRulesInOldFormat("", tmp);
} else {
qDebug("New serialization format detected, processing...");
in.setVersion(QDataStream::Qt_4_5);
QVariantHash tmp;
in >> tmp;
f.close();
if(tmp.isEmpty()) return false;
qDebug("Processing was successful!");
loadRulesFromVariantHash(tmp);
}
return true;
}
qDebug("Error: could not open file at %s", qPrintable(path));
return false;
}