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/*
This file is part of the KTextTemplate library
SPDX-FileCopyrightText: 2011 Stephen Kelly <steveire@gmail.com>
SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "rssfeed.h"
#include <KTextTemplate/Util>
#include <QAbstractXmlNodeModel>
#include <QBuffer>
#include <QDebug>
#include <QEventLoop>
#include <QFile>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QXmlNodeModelIndex>
#include <QXmlQuery>
#include <QXmlResultItems>
Q_DECLARE_METATYPE(QXmlQuery)
RssFeedNodeFactory::RssFeedNodeFactory(QObject *parent)
: KTextTemplate::AbstractNodeFactory(parent)
{
}
KTextTemplate::Node *RssFeedNodeFactory::getNode(const QString &tagContent, KTextTemplate::Parser *p) const
{
QStringList expr = smartSplit(tagContent);
KTextTemplate::FilterExpression url(expr.at(1), p);
KTextTemplate::FilterExpression query(expr.at(2), p);
RssFeedNode *n = new RssFeedNode(url, query);
QList<KTextTemplate::Node *> nodes = p->parse(n, "endrssfeed");
p->takeNextToken();
n->setChildNodes(nodes);
return n;
}
RssFeedNode::RssFeedNode(const KTextTemplate::FilterExpression &url, const KTextTemplate::FilterExpression &query, QObject *parent)
: KTextTemplate::Node(parent)
, m_url(url)
, m_query(query)
{
}
void RssFeedNode::setChildNodes(QList<KTextTemplate::Node *> childNodes)
{
m_childNodes = childNodes;
}
void RssFeedNode::render(KTextTemplate::OutputStream *stream, KTextTemplate::Context *c) const
{
QNetworkAccessManager *mgr = new QNetworkAccessManager(const_cast<RssFeedNode *>(this));
QUrl url(KTextTemplate::getSafeString(m_url.resolve(c)));
QNetworkReply *reply = mgr->get(QNetworkRequest(url));
QEventLoop eLoop;
connect(mgr, SIGNAL(finished(QNetworkReply *)), &eLoop, SLOT(quit()));
eLoop.exec(QEventLoop::ExcludeUserInputEvents);
c->push();
foreach (KTextTemplate::Node *n, m_childNodes) {
if (!n->inherits(XmlNamespaceNode::staticMetaObject.className()))
continue;
KTextTemplate::OutputStream _dummy;
n->render(&_dummy, c);
}
QXmlQuery query;
QByteArray ba = reply->readAll();
QBuffer buffer;
buffer.setData(ba);
buffer.open(QIODevice::ReadOnly);
query.bindVariable("inputDocument", &buffer);
QString ns;
QHash<QString, QVariant> h = c->lookup("_ns").toHash();
QHash<QString, QVariant>::const_iterator it = h.constBegin();
const QHash<QString, QVariant>::const_iterator end = h.constEnd();
for (; it != end; ++it) {
if (it.key().isEmpty()) {
ns += QStringLiteral("declare default element namespace ") + QLatin1String(" \"") + it.value().toString() + QLatin1String("\";\n");
} else {
ns += QStringLiteral("declare namespace ") + it.key() + QLatin1String(" = \"") + it.value().toString() + QLatin1String("\";\n");
}
}
query.setQuery(ns + "doc($inputDocument)" + KTextTemplate::getSafeString(m_query.resolve(c)).get());
QXmlResultItems result;
query.evaluateTo(&result);
QXmlItem item(result.next());
int count = 0;
while (!item.isNull()) {
if (count++ > 20)
break;
query.setFocus(item);
c->push();
foreach (KTextTemplate::Node *n, m_childNodes) {
if (n->inherits(XmlNamespaceNode::staticMetaObject.className()))
continue;
c->insert("_q", QVariant::fromValue(query));
n->render(stream, c);
}
c->pop();
item = result.next();
}
c->pop();
}
XmlRoleNodeFactory::XmlRoleNodeFactory(QObject *parent)
{
}
KTextTemplate::Node *XmlRoleNodeFactory::getNode(const QString &tagContent, KTextTemplate::Parser *p) const
{
QStringList expr = smartSplit(tagContent);
KTextTemplate::FilterExpression query(expr.at(1), p);
return new XmlRoleNode(query);
}
XmlRoleNode::XmlRoleNode(const KTextTemplate::FilterExpression &query, QObject *parent)
: m_query(query)
, m_count(0)
{
}
static QString unescape(const QString &_input)
{
QString input = _input;
input.replace("<", "<");
input.replace(">", ">");
input.replace(""", "\"");
input.replace("&", "&");
return input;
}
void XmlRoleNode::render(KTextTemplate::OutputStream *stream, KTextTemplate::Context *c) const
{
QXmlQuery q = c->lookup("_q").value<QXmlQuery>();
QHash<QString, QVariant> h = c->lookup("_ns").toHash();
QString ns;
QHash<QString, QVariant>::const_iterator it = h.constBegin();
const QHash<QString, QVariant>::const_iterator end = h.constEnd();
for (; it != end; ++it) {
if (it.key().isEmpty()) {
ns += QStringLiteral("declare default element namespace ") + QLatin1String(" \"") + it.value().toString() + QLatin1String("\";\n");
} else {
ns += QStringLiteral("declare namespace ") + it.key() + QLatin1String(" = \"") + it.value().toString() + QLatin1String("\";\n");
}
}
q.setQuery(ns + KTextTemplate::getSafeString(m_query.resolve(c)));
QString s;
q.evaluateTo(&s);
(*stream) << unescape(s);
}
XmlNamespaceNodeFactory::XmlNamespaceNodeFactory(QObject *parent)
{
}
KTextTemplate::Node *XmlNamespaceNodeFactory::getNode(const QString &tagContent, KTextTemplate::Parser *p) const
{
QStringList expr = smartSplit(tagContent);
KTextTemplate::FilterExpression query(expr.at(1), p);
QString name;
if (expr.size() == 4)
name = expr.at(3);
return new XmlNamespaceNode(query, name);
}
XmlNamespaceNode::XmlNamespaceNode(const KTextTemplate::FilterExpression &query, const QString &name, QObject *parent)
: m_query(query)
, m_name(name)
{
}
void XmlNamespaceNode::render(KTextTemplate::OutputStream *stream, KTextTemplate::Context *c) const
{
QString q = KTextTemplate::getSafeString(m_query.resolve(c));
QHash<QString, QVariant> h = c->lookup("_ns").toHash();
h.insert(m_name, q);
c->insert("_ns", h);
}
QVariant ResizeFilter::doFilter(const QVariant &input, const QVariant &argument, bool autoescape) const
{
QString url = KTextTemplate::getSafeString(input);
url.replace("_s", "_z");
return url;
}
#include "moc_rssfeed.cpp"
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