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367 lines
7.9 KiB
367 lines
7.9 KiB
/***************************************************************************
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* Copyright (C) 2006 by Alan Jones *
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* skyphyr@gmail.com *
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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 2 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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "rssfeed.h"
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#include <kglobal.h>
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#include <kstandarddirs.h>
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#include <krfcdate.h>
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#include <kio/netaccess.h>
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#include <tqfile.h>
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#include <tqapplication.h>
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#include <tqdir.h>
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namespace kt
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{
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void RssFeed::startFeed()
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{
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if (m_active)
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{
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refreshFeed();
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refreshTimer.start(TQTime().msecsTo(m_autoRefresh));
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}
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else
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{
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refreshTimer.stop();
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}
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}
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void RssFeed::initialize()
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{
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feedLoading = false;
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loadArticles();
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connect(&refreshTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT( refreshFeed() ) );
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connect(this, TQT_SIGNAL(articlesChanged(const RssArticle::List&)), this, TQT_SLOT( saveArticles() ) );
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startFeed();
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}
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RssFeed::RssFeed(TQObject * parent) : TQObject(parent)
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{
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m_active = false;
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m_articleAge = 365;
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m_ignoreTTL = false;
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m_title = "New";
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initialize();
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}
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RssFeed::RssFeed(KURL feedUrl, TQString title, bool active, int articleAge, bool ignoreTTL, TQTime autoRefresh )
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{
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m_feedUrl = feedUrl;
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m_title = title;
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m_active = active;
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m_articleAge = articleAge;
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m_ignoreTTL = ignoreTTL;
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m_autoRefresh = autoRefresh;
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initialize();
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}
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RssFeed::RssFeed(const RssFeed &other) : TQObject()
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{
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*this = other;
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}
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RssFeed &RssFeed::operator=(const RssFeed &other)
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{
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if (&other != this)
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{
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m_feedUrl = other.feedUrl();
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m_title = other.title();
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m_active = other.active();
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m_articleAge = other.articleAge();
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m_ignoreTTL = other.ignoreTTL();
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m_autoRefresh = other.autoRefresh();
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}
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initialize();
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return *this;
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}
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void RssFeed::setFeedUrl( const KURL& url )
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{
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if (m_feedUrl != url)
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{
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m_feedUrl = url;
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loadArticles();
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startFeed();
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emit feedUrlChanged(url);
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}
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}
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void RssFeed::setFeedUrl( const TQString& url )
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{
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if (m_feedUrl != url)
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{
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m_feedUrl = url;
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loadArticles();
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startFeed();
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emit feedUrlChanged(url);
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}
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}
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void RssFeed::setActive( bool active )
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{
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if (m_active != active)
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{
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m_active = active;
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startFeed();
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emit activeChanged(active);
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}
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}
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void RssFeed::setArticleAge( int articleAge )
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{
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if (m_articleAge != articleAge)
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{
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if (articleAge < m_articleAge)
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{
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cleanArticles();
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}
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m_articleAge = articleAge;
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emit articleAgeChanged(articleAge);
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}
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}
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void RssFeed::setTitle( const TQString& title )
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{
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if (m_title != title)
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{
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m_title = title;
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emit titleChanged(title);
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}
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}
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void RssFeed::setAutoRefresh( const TQTime& autoRefresh )
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{
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if (m_autoRefresh != autoRefresh)
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{
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m_autoRefresh = autoRefresh;
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if (m_active)
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{
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refreshTimer.changeInterval(TQTime().msecsTo(m_autoRefresh));
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}
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emit autoRefreshChanged(autoRefresh);
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}
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}
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void RssFeed::setIgnoreTTL( bool ignoreTTL )
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{
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if (m_ignoreTTL != ignoreTTL)
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{
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m_ignoreTTL = ignoreTTL;
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emit ignoreTTLChanged(ignoreTTL);
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}
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}
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TQString RssFeed::getFilename()
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{
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TQDir directory;
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directory.mkdir(KGlobal::dirs()->saveLocation("data","ktorrent") + "rssfeeds");
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return KGlobal::dirs()->saveLocation("data","ktorrent") + "rssfeeds/" + m_feedUrl.prettyURL(-1).replace("/", "_").replace(":", "_") + ".ktr";
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}
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void RssFeed::loadArticles()
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{
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TQString filename = getFilename();
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//load articles from disk
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TQFile file(filename);
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if (file.exists())
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{
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try
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{
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file.open( IO_ReadOnly );
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TQDataStream in(&file);
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in >> m_articles;
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emit articlesChanged( m_articles );
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}
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catch (...)
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{
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m_articles.clear();
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}
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}
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}
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void RssFeed::saveArticles()
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{
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TQString filename = getFilename();
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//load articles from disk
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TQFile file(filename);
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file.open( IO_WriteOnly );
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TQDataStream out(&file);
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out << m_articles;
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}
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void RssFeed::cleanArticles()
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{
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bool removed = false;
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RssArticle::List::iterator it;
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for ( it = m_articles.begin(); it != m_articles.end(); )
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{
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if ((*it).pubDate().daysTo(TQDateTime::currentDateTime()) > m_articleAge)
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{
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it = m_articles.erase(it);
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removed = true;
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}
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else
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{
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it++;
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}
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}
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if (removed)
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{
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emit articlesChanged(m_articles);
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}
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}
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void RssFeed::clearArticles()
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{
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m_articles.clear();
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}
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void RssFeed::refreshFeed()
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{
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if (feedLoading)
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return;
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feedLoading = true;
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cleanArticles();
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Loader * feedLoader = Loader::create();
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connect( feedLoader, TQT_SIGNAL( loadingComplete( Loader *, Document, Status ) ),
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this, TQT_SLOT( feedLoaded( Loader *, Document, Status ) ) );
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feedLoader->loadFrom( m_feedUrl, new FileRetriever );
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}
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void RssFeed::feedLoaded(Loader *feedLoader, Document doc, Status status)
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{
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feedLoading = false;
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if ( status == Success )
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{
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bool added = false;
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if (m_title.isEmpty() || m_title == TQString("New"))
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{
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setTitle(doc.title());
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emit updateTitle(doc.title());
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}
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if (!m_ignoreTTL)
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{
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if (doc.ttl() < 0)
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{
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setAutoRefresh(TQTime().addSecs(3600));
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}
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else
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{
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setAutoRefresh(TQTime().addSecs(doc.ttl() * 60));
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}
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}
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RssArticle curArticle;
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for (int i=doc.articles().count()-1; i>=0; i--)
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{
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curArticle = doc.articles()[i];
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if (curArticle.pubDate().daysTo(TQDateTime::currentDateTime()) < m_articleAge && !m_articles.contains(curArticle))
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{
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m_articles.prepend(curArticle);
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emit scanRssArticle(curArticle);
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added = true;
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}
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}
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if (added)
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{
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emit articlesChanged(m_articles);
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}
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} else {
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qDebug( "There was and error loading the feed\n");
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}
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disconnect( feedLoader, TQT_SIGNAL( loadingComplete( Loader *, Document, Status ) ),
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this, TQT_SLOT( feedLoaded( Loader *, Document, Status ) ) );
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feedLoader->deleteLater();
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}
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void RssFeed::setDownloaded(TQString link, int downloaded)
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{
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bool changed = false;
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RssArticle::List::iterator it;
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for ( it = m_articles.begin(); it != m_articles.end(); it++ )
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{
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if ((*it).link().prettyURL() == link)
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{
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(*it).setDownloaded( downloaded );
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changed = true;
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}
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}
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if (changed)
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{
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emit articlesChanged(m_articles);
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}
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}
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TQDataStream &operator<<( TQDataStream &out, const RssFeed &feed )
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{
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out << feed.feedUrl() << feed.title() << int(feed.active()) << feed.articleAge() << int(feed.ignoreTTL()) << feed.autoRefresh();
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return out;
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}
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TQDataStream &operator>>( TQDataStream &in, RssFeed &feed )
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{
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KURL feedUrl;
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TQString title;
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int active;
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int articleAge;
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int ignoreTTL;
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TQTime autoRefresh;
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in >> feedUrl >> title >> active >> articleAge >> ignoreTTL >> autoRefresh;
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feed = RssFeed(feedUrl, title, active, articleAge, ignoreTTL, autoRefresh);
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return in;
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}
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RssFeed::~RssFeed()
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{
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}
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}
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