// read and create items from a rss document
void RssParser::parseFeed(const ParsingJob& job)
{
qDebug() << Q_FUNC_INFO << job.feedUrl << job.filePath;
QFile fileRss(job.filePath);
if (!fileRss.open(QIODevice::ReadOnly | QIODevice::Text)) {
reportFailure(job, tr("Failed to open downloaded RSS file."));
return;
}
QXmlStreamReader xml(&fileRss);
bool found_channel = false;
while (xml.readNextStartElement()) {
if (xml.name() == "rss") {
// Find channels
while (xml.readNextStartElement()) {
if (xml.name() == "channel") {
parseRSSChannel(xml, job.feedUrl);
found_channel = true;
break;
} else {
qDebug() << "Skip rss item: " << xml.name();
xml.skipCurrentElement();
}
}
break;
}
else if (xml.name() == "feed") { // Atom feed
parseAtomChannel(xml, job.feedUrl);
found_channel = true;
break;
} else {
qDebug() << "Skip root item: " << xml.name();
xml.skipCurrentElement();
}
}
if (xml.hasError()) {
reportFailure(job, xml.errorString());
return;
}
if (!found_channel) {
reportFailure(job, tr("Invalid RSS feed at %1.").arg(job.feedUrl));
return;
}
// Clean up
fileRss.close();
emit feedParsingFinished(job.feedUrl, QString());
fsutils::forceRemove(job.filePath);
}
/*
* Retrieves the distro RSS news feed from its respective site
* If it fails to connect to the internet, uses the available "./.config/octopi/distro_rss.xml"
* The result is a QString containing the RSS News Feed XML code
*/
QString MainWindow::retrieveDistroNews(bool searchForLatestNews)
{
const QString ctn_ARCH_LINUX_RSS = "https://www.archlinux.org/feeds/news/";
const QString ctn_CHAKRA_RSS = "http://chakra-project.org/news/index.php?/feeds/index.rss2";
const QString ctn_MANJARO_LINUX_RSS = "http://manjaro.org/feed/";
LinuxDistro distro = UnixCommand::getLinuxDistro();
QString res;
QString tmpRssPath = QDir::homePath() + QDir::separator() + ".config/octopi/.tmp_distro_rss.xml";
QString rssPath = QDir::homePath() + QDir::separator() + ".config/octopi/distro_rss.xml";
QString contentsRss;
QFile fileRss(rssPath);
if (fileRss.exists())
{
if (!fileRss.open(QIODevice::ReadOnly | QIODevice::Text)) res = "";
QTextStream in2(&fileRss);
contentsRss = in2.readAll();
fileRss.close();
}
if(searchForLatestNews && UnixCommand::hasInternetConnection() && distro != ectn_UNKNOWN)
{
QString curlCommand = "curl %1 -o %2";
if (distro == ectn_ARCHLINUX || distro == ectn_ARCHBANGLINUX)
{
curlCommand = curlCommand.arg(ctn_ARCH_LINUX_RSS).arg(tmpRssPath);
}
else if (distro == ectn_CHAKRA)
{
curlCommand = curlCommand.arg(ctn_CHAKRA_RSS).arg(tmpRssPath);
}
else if (distro == ectn_MANJAROLINUX)
{
curlCommand = curlCommand.arg(ctn_MANJARO_LINUX_RSS).arg(tmpRssPath);
}
if (UnixCommand::runCurlCommand(curlCommand).isEmpty())
{
QFile fileTmpRss(tmpRssPath);
QFile fileRss(rssPath);
if (!fileRss.exists())
{
fileTmpRss.rename(tmpRssPath, rssPath);
if (!fileRss.open(QIODevice::ReadOnly | QIODevice::Text)) res = "";
QTextStream in2(&fileRss);
contentsRss = in2.readAll();
fileRss.close();
res = contentsRss;
}
else
{
//A rss file already exists. We have to make a SHA1 hash to compare the contents
QString tmpRssSHA1;
QString rssSHA1;
QString contentsTmpRss;
QFile fileTmpRss(tmpRssPath);
if (!fileTmpRss.open(QIODevice::ReadOnly | QIODevice::Text)) res = "";
QTextStream in(&fileTmpRss);
contentsTmpRss = in.readAll();
fileTmpRss.close();
tmpRssSHA1 = QCryptographicHash::hash(contentsTmpRss.toAscii(), QCryptographicHash::Sha1);
rssSHA1 = QCryptographicHash::hash(contentsRss.toAscii(), QCryptographicHash::Sha1);
if (tmpRssSHA1 != rssSHA1){
fileRss.remove();
fileTmpRss.rename(tmpRssPath, rssPath);
res = "*" + contentsTmpRss; //The asterisk indicates there is a MORE updated rss!
}
else
{
fileTmpRss.remove();
res = contentsRss;
}
}
}
}
//Either we don't have internet or we weren't asked to retrieve the latest news
else
{
QFile fileRss(rssPath);
//Maybe we have a file in "./.config/octopi/distro_rss.xml"
if (fileRss.exists())
{
res = contentsRss;
}
else if (searchForLatestNews)
{
res = "<h3><font color=\"#E55451\">" + StrConstants::getInternetUnavailableError() + "</font></h3>";
}
else if (distro != ectn_UNKNOWN)
{
res = "<h3><font color=\"#E55451\">" + StrConstants::getNewsErrorMessage() + "</font></h3>";
}
else
{
res = "<h3><font color=\"#E55451\">" + StrConstants::getIncompatibleLinuxDistroError() + "</font></h3>";
}
}
return res;
}
