141 lines
4.9 KiB
C++
141 lines
4.9 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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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 GNU
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* 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "opmlparser.h"
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#include <QXmlStreamReader>
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#include <QStringList>
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using namespace OpmlParser;
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static bool parseUntil(QXmlStreamReader &reader, const QString &elem)
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{
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while (!reader.atEnd()) {
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reader.readNext();
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if (reader.isStartElement() && reader.name() == elem) {
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return true;
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}
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}
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return false;
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}
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static void consumeCurrentElement(QXmlStreamReader &reader)
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{
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int level = 1;
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while (0!=level && !reader.atEnd()) {
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switch (reader.readNext()) {
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case QXmlStreamReader::StartElement: ++level; break;
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case QXmlStreamReader::EndElement: --level; break;
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default: break;
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}
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}
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}
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static void parseOutline(QXmlStreamReader &reader, Category &cat)
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{
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while (!reader.atEnd()) {
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QXmlStreamReader::TokenType type = reader.readNext();
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switch (type) {
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case QXmlStreamReader::StartElement: {
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const QStringRef name = reader.name();
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if (name != QLatin1String("outline")) {
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consumeCurrentElement(reader);
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continue;
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}
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QXmlStreamAttributes attributes = reader.attributes();
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if (QLatin1String("rss")==attributes.value(QLatin1String("type")).toString() ||
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QLatin1String("link")==attributes.value(QLatin1String("type")).toString()) {
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// Parse the feed and add it to this container
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Podcast podcast;
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podcast.name=attributes.value("title").toString().trimmed();
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if (podcast.name.isEmpty()) {
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podcast.name=attributes.value(QLatin1String("text")).toString();
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}
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podcast.description=attributes.value("description").toString().trimmed();
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if (podcast.description.isEmpty()) {
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podcast.description=attributes.value(QLatin1String("text")).toString();
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}
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podcast.htmlUrl=attributes.value("htmlUrl").toString().trimmed();
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podcast.url=QUrl::fromEncoded(attributes.value(QLatin1String("xmlUrl")).toString().toLatin1());
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if (podcast.url.isEmpty()) {
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podcast.url=QUrl::fromEncoded(attributes.value(QLatin1String("url")).toString().toLatin1());
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}
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podcast.image=QUrl::fromEncoded(attributes.value(QLatin1String("imageUrl")).toString().toLatin1());
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if (podcast.image.isEmpty()) {
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podcast.image=QUrl::fromEncoded(attributes.value(QLatin1String("imageHref")).toString().toLatin1());
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}
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cat.podcasts.append(podcast);
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// Consume any children and the EndElement.
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consumeCurrentElement(reader);
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} else {
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// Create a new child container
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Category child;
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// Take the name from the fullname attribute first if it exists.
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child.name = attributes.value(QLatin1String("fullname")).toString().trimmed();
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if (child.name.isEmpty()) {
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child.name = attributes.value(QLatin1String("title")).toString().trimmed();
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}
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if (child.name.isEmpty()) {
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child.name = attributes.value(QLatin1String("text")).toString().trimmed();
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}
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// Parse its contents and add it to this container
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parseOutline(reader, child);
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cat.categories.append(child);
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}
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break;
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}
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case QXmlStreamReader::EndElement:
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return;
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default:
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break;
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}
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}
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}
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Category OpmlParser::parse(QIODevice *dev)
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{
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Category cat;
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QXmlStreamReader reader(dev);
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if (parseUntil(reader, QLatin1String("body"))) {
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parseOutline(reader, cat);
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}
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return cat;
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}
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Category OpmlParser::parse(const QByteArray &data)
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{
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Category cat;
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QXmlStreamReader reader(data);
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if (parseUntil(reader, QLatin1String("body"))) {
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parseOutline(reader, cat);
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}
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return cat;
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}
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