125 lines
3.4 KiB
C++
Executable file
125 lines
3.4 KiB
C++
Executable file
// For license of this file, see <project-root-folder>/LICENSE.md.
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#include "services/standard/feedparser.h"
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#include "exceptions/applicationexception.h"
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#include <QDebug>
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#include <QRegularExpression>
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#include <utility>
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FeedParser::FeedParser(QString data) : m_xmlData(std::move(data)), m_mrssNamespace(QSL("http://search.yahoo.com/mrss/")) {
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m_xml.setContent(m_xmlData, true);
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}
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FeedParser::~FeedParser() = default;
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QList<Message> FeedParser::messages() {
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QString feed_author = feedAuthor();
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QList<Message> messages;
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QDateTime current_time = QDateTime::currentDateTime();
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// Pull out all messages.
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QDomNodeList messages_in_xml = messageElements();
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for (int i = 0; i < messages_in_xml.size(); i++) {
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QDomNode message_item = messages_in_xml.item(i);
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try {
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Message new_message = extractMessage(message_item.toElement(), current_time);
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if (new_message.m_author.isEmpty()) {
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new_message.m_author = feed_author;
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}
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new_message.m_url = new_message.m_url.replace(QRegularExpression("[\\t\\n]"), QString());
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messages.append(new_message);
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}
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catch (const ApplicationException& ex) {
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qDebug() << ex.message();
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}
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}
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return messages;
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}
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QList<Enclosure> FeedParser::mrssGetEnclosures(const QDomElement& msg_element) const {
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QList<Enclosure> enclosures;
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auto content_list = msg_element.elementsByTagNameNS(m_mrssNamespace, "content");
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for (int i = 0; i < content_list.size(); i++) {
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QDomElement elem_content = content_list.at(i).toElement();
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QString url = elem_content.attribute(QSL("url"));
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QString type = elem_content.attribute(QSL("type"));
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if (!url.isEmpty() && !type.isEmpty()) {
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enclosures.append(Enclosure(url, type));
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}
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}
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auto thumbnail_list = msg_element.elementsByTagNameNS(m_mrssNamespace, "thumbnail");
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for (int i = 0; i < thumbnail_list.size(); i++) {
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QDomElement elem_content = thumbnail_list.at(i).toElement();
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QString url = elem_content.attribute(QSL("url"));
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if (!url.isEmpty()) {
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enclosures.append(Enclosure(url, QSL("image/png")));
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}
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}
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return enclosures;
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}
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QString FeedParser::mrssTextFromPath(const QDomElement& msg_element, const QString& xml_path) const {
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QString text = msg_element.elementsByTagNameNS(m_mrssNamespace, xml_path).at(0).toElement().text();
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return text;
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}
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QStringList FeedParser::textsFromPath(const QDomElement& element, const QString& namespace_uri,
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const QString& xml_path, bool only_first) const {
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QStringList paths = xml_path.split('/');
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QStringList result;
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QList<QDomElement> current_elements;
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current_elements.append(element);
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while (!paths.isEmpty()) {
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QList<QDomElement> next_elements;
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QString next_local_name = paths.takeFirst();
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foreach (const QDomElement& elem, current_elements) {
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QDomNodeList elements = elem.elementsByTagNameNS(namespace_uri, next_local_name);
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for (int i = 0; i < elements.size(); i++) {
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next_elements.append(elements.at(i).toElement());
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if (only_first) {
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break;
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}
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}
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if (next_elements.size() == 1 && only_first) {
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break;
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}
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}
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current_elements = next_elements;
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}
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if (!current_elements.isEmpty()) {
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foreach (const QDomElement& elem, current_elements) {
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result.append(elem.text());
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}
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}
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return result;
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}
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QString FeedParser::feedAuthor() const {
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return "";
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}
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