diff options
Diffstat (limited to 'akregator/src/librss/article.cpp')
| -rw-r--r-- | akregator/src/librss/article.cpp | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/akregator/src/librss/article.cpp b/akregator/src/librss/article.cpp new file mode 100644 index 000000000..010cf5dcb --- /dev/null +++ b/akregator/src/librss/article.cpp @@ -0,0 +1,290 @@ +/* + * 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 "enclosure.h" +#include "category.h" + +#include <kdebug.h> +#include <krfcdate.h> +#include <kurl.h> +#include <kurllabel.h> +#include <kmdcodec.h> + +#include <qdatetime.h> +#include <qdom.h> + +using namespace RSS; +namespace RSS +{ + KMD5 md5Machine; +} + +struct Article::Private : public Shared +{ + QString title; + KURL link; + QString description; + QDateTime pubDate; + QString guid; + QString author; + bool guidIsPermaLink; + MetaInfoMap meta; + KURL commentsLink; + int numComments; + Enclosure enclosure; + QValueList<Category> categories; +}; + +Article::Article() : d(new Private) +{ +} + +Article::Article(const Article &other) : d(0) +{ + *this = other; +} + +Enclosure Article::enclosure() const +{ + return d->enclosure; +} + +QValueList<Category> Article::categories() const +{ + return d->categories; +} + + +Article::Article(const QDomNode &node, Format format, Version version) : d(new Private) +{ + QString elemText; + + d->numComments=0; + + if (!(elemText = extractTitle(node)).isNull()) + d->title = elemText; + + if (format==AtomFeed) + { + QDomNode n; + for (n = node.firstChild(); !n.isNull(); n = n.nextSibling()) { + const QDomElement e = n.toElement(); + if ( (e.tagName()==QString::fromLatin1("link")) && + (e.attribute(QString::fromLatin1("rel"), QString::fromLatin1("alternate")) == QString::fromLatin1("alternate"))) + { + d->link=n.toElement().attribute(QString::fromLatin1("href")); + break; + } + } + } + else + { + if (!(elemText = extractNode(node, QString::fromLatin1("link"))).isNull()) + d->link = elemText; + } + + + // prefer content/content:encoded over summary/description for feeds that provide it + QString tagName=(format==AtomFeed)? QString::fromLatin1("content"): QString::fromLatin1("content:encoded"); + + if (!(elemText = extractNode(node, tagName, false)).isNull()) + d->description = elemText; + + if (d->description.isEmpty()) + { + if (!(elemText = extractNode(node, QString::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, QString::fromLatin1((format==AtomFeed)? "summary" : "description"), false)).isNull()) + d->description = elemText; + } + } + + time_t time = 0; + + if (format == AtomFeed) + { + if (version == vAtom_1_0) + elemText = extractNode(node, QString::fromLatin1("updated")); + else + elemText = extractNode(node, QString::fromLatin1("issued")); + + if (!elemText.isNull()) + time = parseISO8601Date(elemText); + } + else + { + elemText = extractNode(node, QString::fromLatin1("pubDate")); + if (!elemText.isNull()) + time = KRFCDate::parseDate(elemText); + } + + if (!(elemText = extractNode(node, QString::fromLatin1("dc:date"))).isNull()) + { + time = parseISO8601Date(elemText); + } + + // 0 means invalid, not epoch (parsers return epoch+1 when parsing epoch, see the KRFCDate::parseDate() docs) + if (time != 0) + d->pubDate.setTime_t(time); + + if (!(elemText = extractNode(node, QString::fromLatin1("wfw:comment"))).isNull()) { + d->commentsLink = elemText; + } + + if (!(elemText = extractNode(node, QString::fromLatin1("slash:comments"))).isNull()) { + d->numComments = elemText.toInt(); + } + + QDomElement element = QDomNode(node).toElement(); + + // in RSS 1.0, we use <item about> attribute as ID + // FIXME: pass format version instead of checking for attribute + + if (!element.isNull() && element.hasAttribute(QString::fromLatin1("rdf:about"))) + { + d->guid = element.attribute(QString::fromLatin1("rdf:about")); // HACK: using ns properly did not work + d->guidIsPermaLink = false; + } + else + { + tagName=(format==AtomFeed)? QString::fromLatin1("id"): QString::fromLatin1("guid"); + QDomNode n = node.namedItem(tagName); + if (!n.isNull()) + { + d->guidIsPermaLink = (format==AtomFeed)? false : true; + if (n.toElement().attribute(QString::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(); + QDomNode n(node); + md5Machine.update(d->title.utf8()); + md5Machine.update(d->description.utf8()); + d->guid = QString(md5Machine.hexDigest().data()); + d->meta[QString::fromLatin1("guidIsHash")] = QString::fromLatin1("true"); + } + + QDomNode enclosure = element.namedItem(QString::fromLatin1("enclosure")); + if (enclosure.isElement()) + d->enclosure = Enclosure::fromXML(enclosure.toElement()); + + d->author = parseItemAuthor(element, format, version); + + for (QDomNode i = node.firstChild(); !i.isNull(); i = i.nextSibling()) + { + if (i.isElement()) + { + if (i.toElement().tagName() == QString::fromLatin1("metaInfo:meta")) + { + QString type = i.toElement().attribute(QString::fromLatin1("type")); + d->meta[type] = i.toElement().text(); + } + else if (i.toElement().tagName() == QString::fromLatin1("category")) + { + d->categories.append(Category::fromXML(i.toElement())); + } + } + } +} + +Article::~Article() +{ + if (d->deref()) + delete d; +} + +QString Article::title() const +{ + return d->title; +} + +QString Article::author() const +{ + return d->author; +} + +const KURL &Article::link() const +{ + return d->link; +} + +QString Article::description() const +{ + return d->description; +} + +QString Article::guid() const +{ + return d->guid; +} + +bool Article::guidIsPermaLink() const +{ + return d->guidIsPermaLink; +} + +const QDateTime &Article::pubDate() const +{ + return d->pubDate; +} + +const KURL &Article::commentsLink() const +{ + return d->commentsLink; +} + +int Article::comments() const +{ + return d->numComments; +} + + +QString Article::meta(const QString &key) const +{ + return d->meta[key]; +} + +KURLLabel *Article::widget(QWidget *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(); +} + +// vim:noet:ts=4 |