/**
* Update a feed.
* Re-written by Michael Jervis (mike AT fuckingbrit DOT com)
* to use the new architecture
*
* @param int $fid feed id
*
*/
function SYND_updateFeed($fid)
{
global $_CONF, $_TABLES, $_SYND_DEBUG;
SYND_fixCharset($fid);
$result = DB_query("SELECT * FROM {$_TABLES['syndication']} WHERE fid = {$fid}");
$A = DB_fetchArray($result);
if ($A['is_enabled'] == 1) {
// Import the feed handling classes:
require_once $_CONF['path_system'] . '/classes/syndication/parserfactory.class.php';
require_once $_CONF['path_system'] . '/classes/syndication/feedparserbase.class.php';
// Load the actual feed handlers:
$factory = new FeedParserFactory($_CONF['path_system'] . '/classes/syndication/');
$format = explode('-', $A['format']);
$feed = $factory->writer($format[0], $format[1]);
if ($feed) {
$feed->encoding = $A['charset'];
$feed->lang = $A['language'];
if ($A['type'] == 'article') {
if ($A['topic'] == '::all') {
$content = SYND_getFeedContentAll(false, $A['limits'], $link, $data, $A['content_length'], $format[0], $format[1], $fid);
} elseif ($A['topic'] == '::frontpage') {
$content = SYND_getFeedContentAll(true, $A['limits'], $link, $data, $A['content_length'], $format[0], $format[1], $fid);
} else {
// feed for a single topic only
$content = SYND_getFeedContentPerTopic($A['topic'], $A['limits'], $link, $data, $A['content_length'], $format[0], $format[1], $fid);
}
} else {
$content = PLG_getFeedContent($A['type'], $fid, $link, $data, $format[0], $format[1]);
// can't randomly change the api to send a max length, so
// fix it here:
if ($A['content_length'] != 1) {
$count = count($content);
for ($i = 0; $i < $count; $i++) {
$content[$i]['summary'] = $A['content_length'] == 1 ? $content[$i]['text'] : COM_truncateHTML($content[$i]['text'], $A['content_length'], ' ...');
}
}
}
if (empty($link)) {
$link = $_CONF['site_url'];
}
$feed->title = $A['title'];
$feed->description = $A['description'];
if (empty($A['feedlogo'])) {
$feed->feedlogo = '';
} else {
$feed->feedlogo = $_CONF['site_url'] . $A['feedlogo'];
}
$feed->sitelink = $link;
$feed->copyright = 'Copyright ' . strftime('%Y') . ' ' . $_CONF['site_name'];
$feed->sitecontact = $_CONF['site_mail'];
$feed->system = 'Geeklog';
/* Gather any other stuff */
$feed->namespaces = array_merge($feed->namespaces, PLG_getFeedNSExtensions($A['type'], $format[0], $format[1], $A['topic'], $fid));
/* If the feed is RSS, and trackback is enabled */
if ($_CONF['trackback_enabled'] && $format[0] == 'RSS') {
/* Check to see if an article has trackbacks enabled, and if
* at least one does, then include the trackback namespace:
*/
$trackbackenabled = false;
foreach ($content as $item) {
if (array_key_exists('extensions', $item) && array_key_exists('trackbacktag', $item['extensions'])) {
// Found at least one article, with a trackbacktag
// in it's extensions tag.
$trackbackenabled = true;
break;
}
}
if ($trackbackenabled) {
$feed->namespaces[] = 'xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"';
}
}
/* Inject the namespace for Atom into RSS feeds. Illogical?
* Well apparantly not:
* http://feedvalidator.org/docs/warning/MissingAtomSelfLink.html
*/
if ($format[0] == 'RSS') {
$feed->namespaces[] = 'xmlns:atom="http://www.w3.org/2005/Atom"';
}
if (!empty($A['filename'])) {
$filename = $A['filename'];
} else {
$pos = strrpos($_CONF['rdf_file'], '/');
$filename = substr($_CONF['rdf_file'], $pos + 1);
}
$feed->url = SYND_getFeedUrl($filename);
$feed->extensions = PLG_getFeedExtensionTags($A['type'], $format[0], $format[1], $A['topic'], $fid, $feed);
/* Inject the self reference for Atom into RSS feeds. Illogical?
* Well apparantly not:
* http://feedvalidator.org/docs/warning/MissingAtomSelfLink.html
*/
if ($format[0] == 'RSS') {
$feed->extensions[] = '<atom:link href="' . $feed->url . '" rel="self" type="application/rss+xml" />';
}
$feed->articles = $content;
$feed->createFeed(SYND_getFeedPath($filename));
} else {
COM_errorLog("Unable to get a feed writer for {$format[0]} version {$format[1]}.", 1);
}
if (empty($data)) {
$data = 'NULL';
} else {
$data = "'" . $data . "'";
}
if ($_SYND_DEBUG) {
COM_errorLog("update_info for feed {$fid} is {$data}", 1);
}
DB_query("UPDATE {$_TABLES['syndication']} SET updated = NOW(), update_info = {$data} WHERE fid = {$fid}");
}
}
/**
* Syndication import function. Imports headline data to a portal block.
*
* Rewritten December 19th 2004 by Michael Jervis (mike AT fuckingbrit DOT com).
* Now utilises a Factory Pattern to open a URL and automaticaly retreive a feed
* object populated with feed data. Then import it into the portal block.
*
* @param string $bid Block ID
* @param string $rdfurl URL to get content from
* @param int $maxheadlines Maximum number of headlines to display
* @return void
* @see function COM_rdfCheck
*
*/
function COM_rdfImport($bid, $rdfurl, $maxheadlines = 0)
{
global $_CONF, $_TABLES, $LANG21;
// Import the feed handling classes:
require_once $_CONF['path_system'] . '/classes/syndication/parserfactory.class.php';
require_once $_CONF['path_system'] . '/classes/syndication/feedparserbase.class.php';
$result = DB_query("SELECT rdf_last_modified, rdf_etag FROM {$_TABLES['blocks']} WHERE bid = {$bid}");
list($last_modified, $etag) = DB_fetchArray($result);
// Load the actual feed handlers:
$factory = new FeedParserFactory($_CONF['path_system'] . '/classes/syndication/');
$factory->userAgent = 'Geeklog/' . VERSION;
if (!empty($last_modified) && !empty($etag)) {
$factory->lastModified = $last_modified;
$factory->eTag = $etag;
}
// Aquire a reader:
$feed = $factory->reader($rdfurl, $_CONF['default_charset']);
if ($feed) {
/* We have located a reader, and populated it with the information from
* the syndication file. Now we will sort out our display, and update
* the block.
*/
if ($maxheadlines == 0) {
if (!empty($_CONF['syndication_max_headlines'])) {
$maxheadlines = $_CONF['syndication_max_headlines'];
} else {
$maxheadlines = count($feed->articles);
}
}
$update = date('Y-m-d H:i:s');
$last_modified = '';
if (!empty($factory->lastModified)) {
$last_modified = addslashes($factory->lastModified);
}
$etag = '';
if (!empty($factory->eTag)) {
$etag = addslashes($factory->eTag);
}
if (empty($last_modified) || empty($etag)) {
DB_query("UPDATE {$_TABLES['blocks']} SET rdfupdated = '{$update}', rdf_last_modified = NULL, rdf_etag = NULL WHERE bid = '{$bid}'");
} else {
DB_query("UPDATE {$_TABLES['blocks']} SET rdfupdated = '{$update}', rdf_last_modified = '{$last_modified}', rdf_etag = '{$etag}' WHERE bid = '{$bid}'");
}
$charset = COM_getCharset();
// format articles for display
$readmax = min($maxheadlines, count($feed->articles));
for ($i = 0; $i < $readmax; $i++) {
if (empty($feed->articles[$i]['title'])) {
$feed->articles[$i]['title'] = $LANG21[61];
}
if ($charset == 'utf-8') {
$title = $feed->articles[$i]['title'];
} else {
$title = utf8_decode($feed->articles[$i]['title']);
}
if ($feed->articles[$i]['link'] != '') {
$content = COM_createLink($title, $feed->articles[$i]['link']);
} elseif ($feed->articles[$i]['enclosureurl'] != '') {
$content = COM_createLink($title, $feed->articles[$i]['enclosureurl']);
} else {
$content = $title;
}
$articles[] = $content;
}
// build a list
$content = COM_makeList($articles, 'list-feed');
$content = str_replace(array("\r", "\n"), '', $content);
if (strlen($content) > 65000) {
$content = $LANG21[68];
}
// Standard theme based function to put it in the block
$result = DB_change($_TABLES['blocks'], 'content', addslashes($content), 'bid', $bid);
} else {
if ($factory->errorStatus !== false) {
// failed to aquire info, 0 out the block and log an error
COM_errorLog("Unable to aquire feed reader for {$rdfurl}", 1);
COM_errorLog($factory->errorStatus[0] . ' ' . $factory->errorStatus[1] . ' ' . $factory->errorStatus[2]);
$content = addslashes($LANG21[4]);
DB_query("UPDATE {$_TABLES['blocks']} SET content = '{$content}', rdf_last_modified = NULL, rdf_etag = NULL WHERE bid = {$bid}");
}
}
}
/**
* Get a list of feed formats from the feed parser factory.
*
* @return array array of names of feed formats (and versions)
*
*/
function find_feedFormats()
{
global $_CONF;
// Import the feed handling classes:
require_once $_CONF['path_system'] . '/classes/syndication/parserfactory.class.php';
$factory = new FeedParserFactory();
$formats = $factory->getFeedTypes();
sort($formats);
return $formats;
}
