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/*
* xmlnewsaccess.cpp
*
* Copyright (c) 2001 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 "xmlnewsaccess.h"
#include <kcharsets.h>
#include <kdebug.h>
#include <kglobal.h>
#include <qbuffer.h>
#include <qdom.h>
#include <qregexp.h>
XMLNewsArticle::XMLNewsArticle(const QString &headline, const KURL &address)
: m_headline(headline),
m_address(address)
{
}
XMLNewsArticle &XMLNewsArticle::operator=(const XMLNewsArticle &other)
{
m_headline = other.m_headline;
m_address = other.m_address;
return *this;
}
bool XMLNewsArticle::operator==(const XMLNewsArticle &a)
{
return m_headline == a.headline() && m_address == a.address();
}
XMLNewsSource::XMLNewsSource() : QObject(),
m_name(QString::null),
m_link(QString::null),
m_description(QString::null),
m_downloadData(0)
{
}
XMLNewsSource::~XMLNewsSource()
{
delete m_downloadData; // Might exist if we are in the middle of a download
}
void XMLNewsSource::loadFrom(const KURL &url)
{
if ( m_downloadData != 0 ) {
kdDebug( 5005 ) << "XMLNewsSource::loadFrom(): Busy, ignoring load "
"request for " << url << endl;
return;
}
m_downloadData = new QBuffer;
m_downloadData->open(IO_WriteOnly);
KIO::Job *job = KIO::get(url, false, false);
job->addMetaData(QString::fromLatin1("UserAgent"),
QString::fromLatin1("KNewsTicker v0.2"));
connect(job, SIGNAL(data(KIO::Job *, const QByteArray &)),
SLOT(slotData(KIO::Job *, const QByteArray &)));
connect(job, SIGNAL(result(KIO::Job *)), SLOT(slotResult(KIO::Job *)));
}
void XMLNewsSource::slotData(KIO::Job *, const QByteArray &data)
{
m_downloadData->writeBlock(data.data(), data.size());
}
void XMLNewsSource::slotResult(KIO::Job *job)
{
kdDebug(5005) << "XMLNewsSource::slotResult(): Finished downloading data (" << job->error() << ")." << endl;
processData(m_downloadData->buffer(), !job->error());
delete m_downloadData;
m_downloadData = 0;
}
void XMLNewsSource::processData(const QByteArray &data, bool okSoFar)
{
bool validContent = okSoFar;
kdDebug(5005) << "XMLNewsSource::processData(): validContent = " << validContent << endl;
if (okSoFar) {
/*
* Some servers prepend whitespace before the <?xml...?> declaration.
* Since QDom doesn't like that we strip this first.
*/
QDomDocument domDoc;
const char *charData = data.data();
int len = data.count();
while (len && (*charData == ' ' || *charData == '\n' || *charData == '\t' || *charData == '\r') ) {
len--;
charData++;
}
QByteArray tmpData;
tmpData.setRawData(charData, len);
if (validContent = domDoc.setContent(tmpData)) {
QDomNode channelNode = domDoc.documentElement().namedItem(QString::fromLatin1("channel"));
m_name = channelNode.namedItem(QString::fromLatin1("title")).toElement().text().simplifyWhiteSpace();
kdDebug(5005) << "XMLNewsSource::processData(): Successfully updated " << m_name << endl;
m_link = channelNode.namedItem(QString::fromLatin1("link")).toElement().text().simplifyWhiteSpace();
m_description = channelNode.namedItem(QString::fromLatin1("description")).toElement().text().simplifyWhiteSpace();
QDomNodeList items = domDoc.elementsByTagName(QString::fromLatin1("item"));
m_articles.clear();
QDomNode itemNode;
QString headline, address;
for (unsigned int i = 0; i < items.count(); i++) {
itemNode = items.item(i);
headline = KCharsets::resolveEntities(itemNode.namedItem(QString::fromLatin1("title")).toElement().text().simplifyWhiteSpace());
address = KCharsets::resolveEntities(itemNode.namedItem(QString::fromLatin1("link")).toElement().text().simplifyWhiteSpace());
m_articles.append(XMLNewsArticle(headline, KURL( address )));
}
}
kdDebug(5005) << "XMLNewsSource::processData(): validContent = " << validContent << endl;
tmpData.resetRawData(charData, len);
}
emit loadComplete(this, validContent);
}
#include "xmlnewsaccess.moc"
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