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/*
* article.cpp
*
* Copyright (c) 2001, 2002, 2003, 2004 Frerich Raabe <raabe@kde.org>
*
* 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. For licensing and distribution details, check the
* accompanying file 'COPYING'.
*/
#include "article.h"
#include "tools_p.h"
#include <kdebug.h>
#include <krfcdate.h>
#include <kurl.h>
#include <kurllabel.h>
#include <kmdcodec.h>
#include <tqdatetime.h>
#include <tqdom.h>
using namespace RSS;
namespace RSS
{
KMD5 md5Machine;
}
struct Article::Private : public Shared
{
TQString title;
KURL link;
TQString description;
TQDateTime pubDate;
TQString guid;
bool guidIsPermaLink;
MetaInfoMap meta;
KURL commentsLink;
int numComments;
};
Article::Article() : d(new Private)
{
}
Article::Article(const Article &other) : d(0)
{
*this = other;
}
Article::Article(const TQDomNode &node, Format format) : d(new Private)
{
TQString elemText;
d->numComments=0;
if (!(elemText = extractNode(node, TQString::fromLatin1("title"))).isNull())
d->title = elemText;
TQDomNode n;
bool foundTorrentEnclosure = false;
for (n = node.firstChild(); !n.isNull(); n = n.nextSibling()) {
const TQDomElement e = n.toElement();
if ( (e.tagName()==TQString::fromLatin1("enclosure") ) )
{
TQString enclosureAttr = e.attribute(TQString::fromLatin1("type"));
if (!enclosureAttr.isNull() )
{
if (enclosureAttr == "application/x-bittorrent")
{
enclosureAttr = e.attribute(TQString::fromLatin1("url"));
if (!enclosureAttr.isNull() )
{
d->link=enclosureAttr;
foundTorrentEnclosure = true;
break;
}
}
}
}
}
if (!foundTorrentEnclosure)
{
if (format==AtomFeed)
{
TQDomNode n;
for (n = node.firstChild(); !n.isNull(); n = n.nextSibling()) {
const TQDomElement e = n.toElement();
if ( (e.tagName()==TQString::fromLatin1("link")) &&
(e.attribute(TQString::fromLatin1("rel"))==TQString::fromLatin1("alternate")))
{
d->link=n.toElement().attribute(TQString::fromLatin1("href"));
break;
}
}
}
else
{
if (!(elemText = extractNode(node, TQString::fromLatin1("link"))).isNull())
d->link = elemText;
}
}
// prefer content/content:encoded over summary/description for feeds that provide it
TQString tagName=(format==AtomFeed)? TQString::fromLatin1("content"): TQString::fromLatin1("content:encoded");
if (!(elemText = extractNode(node, tagName, false)).isNull())
d->description = elemText;
if (d->description.isEmpty())
{
if (!(elemText = extractNode(node, TQString::fromLatin1("body"), false)).isNull())
d->description = elemText;
if (d->description.isEmpty()) // 3rd try: see http://www.intertwingly.net/blog/1299.html
{
if (!(elemText = extractNode(node, TQString::fromLatin1((format==AtomFeed)? "summary" : "description"), false)).isNull())
d->description = elemText;
}
}
if (!(elemText = extractNode(node, TQString::fromLatin1((format==AtomFeed)? "created": "pubDate"))).isNull())
{
time_t _time;
if (format==AtomFeed)
_time = parseISO8601Date(elemText);
else
_time = KRFCDate::parseDate(elemText);
// 0 means invalid, not epoch (it returns epoch+1 when it parsed epoch, see the KRFCDate::parseDate() docs)
if (_time != 0)
d->pubDate.setTime_t(_time);
}
if (!(elemText = extractNode(node, TQString::fromLatin1("dc:date"))).isNull())
{
time_t _time = parseISO8601Date(elemText);
// 0 means invalid, not epoch (it returns epoch+1 when it parsed epoch, see the KRFCDate::parseDate() docs)
if (_time != 0)
d->pubDate.setTime_t(_time);
}
//no luck so far - so let's set it to the current time
if (!d->pubDate.isValid())
{
d->pubDate = TQDateTime::currentDateTime();
}
if (!(elemText = extractNode(node, TQString::fromLatin1("wfw:comment"))).isNull()) {
d->commentsLink = elemText;
}
if (!(elemText = extractNode(node, TQString::fromLatin1("slash:comments"))).isNull()) {
d->numComments = elemText.toInt();
}
tagName=(format==AtomFeed)? TQString::fromLatin1("id"): TQString::fromLatin1("guid");
n = node.namedItem(tagName);
if (!n.isNull()) {
d->guidIsPermaLink = (format==AtomFeed)? false : true;
if (n.toElement().attribute(TQString::fromLatin1("isPermaLink"), "true") == "false") d->guidIsPermaLink = false;
if (!(elemText = extractNode(node, tagName)).isNull())
d->guid = elemText;
}
if(d->guid.isEmpty()) {
d->guidIsPermaLink = false;
md5Machine.reset();
TQDomNode n(node);
md5Machine.update(d->title.utf8());
md5Machine.update(d->description.utf8());
d->guid = TQString(md5Machine.hexDigest().data());
d->meta[TQString::fromLatin1("guidIsHash")] = TQString::fromLatin1("true");
}
for (TQDomNode i = node.firstChild(); !i.isNull(); i = i.nextSibling())
{
if (i.isElement() && i.toElement().tagName() == TQString::fromLatin1("metaInfo:meta"))
{
TQString type = i.toElement().attribute(TQString::fromLatin1("type"));
d->meta[type] = i.toElement().text();
}
}
}
Article::~Article()
{
if (d->deref())
delete d;
}
TQString Article::title() const
{
return d->title;
}
const KURL &Article::link() const
{
return d->link;
}
TQString Article::description() const
{
return d->description;
}
TQString Article::guid() const
{
return d->guid;
}
bool Article::guidIsPermaLink() const
{
return d->guidIsPermaLink;
}
const TQDateTime &Article::pubDate() const
{
return d->pubDate;
}
const KURL &Article::commentsLink() const
{
return d->commentsLink;
}
int Article::comments() const
{
return d->numComments;
}
TQString Article::meta(const TQString &key) const
{
return d->meta[key];
}
KURLLabel *Article::widget(TQWidget *parent, const char *name) const
{
KURLLabel *label = new KURLLabel(d->link.url(), d->title, parent, name);
label->setUseTips(true);
if (!d->description.isNull())
label->setTipText(d->description);
return label;
}
Article &Article::operator=(const Article &other)
{
if (this != &other) {
other.d->ref();
if (d && d->deref())
delete d;
d = other.d;
}
return *this;
}
bool Article::operator==(const Article &other) const
{
return d->guid == other.guid();
}
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