547 lines
20 KiB
PHP
547 lines
20 KiB
PHP
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<?php
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/**
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* XML feed export
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @global array $conf
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* @global Input $INPUT
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*/
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use dokuwiki\Cache\Cache;
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use dokuwiki\ChangeLog\MediaChangeLog;
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use dokuwiki\ChangeLog\PageChangeLog;
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use dokuwiki\Extension\AuthPlugin;
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use dokuwiki\Extension\Event;
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if (!defined('DOKU_INC')) define('DOKU_INC', dirname(__FILE__) . '/');
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require_once(DOKU_INC . 'inc/init.php');
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//close session
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session_write_close();
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//feed disabled?
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if (!actionOK('rss')) {
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http_status(404);
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echo '<error>RSS feed is disabled.</error>';
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exit;
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}
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// get params
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$opt = rss_parseOptions();
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// the feed is dynamic - we need a cache for each combo
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// (but most people just use the default feed so it's still effective)
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$key = join('', array_values($opt)) . '$' . $INPUT->server->str('REMOTE_USER')
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. '$' . $INPUT->server->str('HTTP_HOST') . $INPUT->server->str('SERVER_PORT');
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$cache = new Cache($key, '.feed');
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// prepare cache depends
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$depends['files'] = getConfigFiles('main');
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$depends['age'] = $conf['rss_update'];
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$depends['purge'] = $INPUT->bool('purge');
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// check cacheage and deliver if nothing has changed since last
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// time or the update interval has not passed, also handles conditional requests
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header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
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header('Pragma: public');
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header('Content-Type: application/xml; charset=utf-8');
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header('X-Robots-Tag: noindex');
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if ($cache->useCache($depends)) {
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http_conditionalRequest($cache->getTime());
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if ($conf['allowdebug']) header("X-CacheUsed: $cache->cache");
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print $cache->retrieveCache();
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exit;
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} else {
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http_conditionalRequest(time());
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}
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// create new feed
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$rss = new UniversalFeedCreator();
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$rss->title = $conf['title'] . (($opt['namespace']) ? ' ' . $opt['namespace'] : '');
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$rss->link = DOKU_URL;
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$rss->syndicationURL = DOKU_URL . 'feed.php';
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$rss->cssStyleSheet = DOKU_URL . 'lib/exe/css.php?s=feed';
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$image = new FeedImage();
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$image->title = $conf['title'];
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$image->url = tpl_getMediaFile([':wiki:favicon.ico', ':favicon.ico', 'images/favicon.ico'], true);
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$image->link = DOKU_URL;
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$rss->image = $image;
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$data = null;
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$modes = [
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'list' => 'rssListNamespace',
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'search' => 'rssSearch',
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'recent' => 'rssRecentChanges'
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];
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if (isset($modes[$opt['feed_mode']])) {
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$data = $modes[$opt['feed_mode']]($opt);
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} else {
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$eventData = [
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'opt' => &$opt,
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'data' => &$data,
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];
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$event = new Event('FEED_MODE_UNKNOWN', $eventData);
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if ($event->advise_before(true)) {
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echo sprintf('<error>Unknown feed mode %s</error>', hsc($opt['feed_mode']));
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exit;
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}
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$event->advise_after();
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}
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rss_buildItems($rss, $data, $opt);
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$feed = $rss->createFeed($opt['feed_type']);
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// save cachefile
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$cache->storeCache($feed);
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// finally deliver
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print $feed;
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// ---------------------------------------------------------------- //
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/**
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* Get URL parameters and config options and return an initialized option array
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function rss_parseOptions()
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{
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global $conf;
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global $INPUT;
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$opt = [];
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foreach (
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[
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// Basic feed properties
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// Plugins may probably want to add new values to these
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// properties for implementing own feeds
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// One of: list, search, recent
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'feed_mode' => ['str', 'mode', 'recent'],
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// One of: diff, page, rev, current
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'link_to' => ['str', 'linkto', $conf['rss_linkto']],
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// One of: abstract, diff, htmldiff, html
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'item_content' => ['str', 'content', $conf['rss_content']],
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// Special feed properties
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// These are only used by certain feed_modes
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// String, used for feed title, in list and rc mode
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'namespace' => ['str', 'ns', null],
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// Positive integer, only used in rc mode
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'items' => ['int', 'num', $conf['recent']],
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// Boolean, only used in rc mode
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'show_minor' => ['bool', 'minor', false],
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// Boolean, only used in rc mode
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'only_new' => ['bool', 'onlynewpages', false],
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// String, only used in list mode
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'sort' => ['str', 'sort', 'natural'],
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// String, only used in search mode
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'search_query' => ['str', 'q', null],
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// One of: pages, media, both
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'content_type' => ['str', 'view', $conf['rss_media']]
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] as $name => $val
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) {
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$opt[$name] = $INPUT->{$val[0]}($val[1], $val[2], true);
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}
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$opt['items'] = max(0, (int) $opt['items']);
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$opt['show_minor'] = (bool) $opt['show_minor'];
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$opt['only_new'] = (bool) $opt['only_new'];
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$opt['sort'] = valid_input_set('sort', ['default' => 'natural', 'date'], $opt);
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$opt['guardmail'] = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none');
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$type = $INPUT->valid(
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'type',
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['rss', 'rss2', 'atom', 'atom1', 'rss1'],
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$conf['rss_type']
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);
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switch ($type) {
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case 'rss':
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$opt['feed_type'] = 'RSS0.91';
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$opt['mime_type'] = 'text/xml';
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break;
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case 'rss2':
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$opt['feed_type'] = 'RSS2.0';
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$opt['mime_type'] = 'text/xml';
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break;
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case 'atom':
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$opt['feed_type'] = 'ATOM0.3';
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$opt['mime_type'] = 'application/xml';
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break;
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case 'atom1':
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$opt['feed_type'] = 'ATOM1.0';
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$opt['mime_type'] = 'application/atom+xml';
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break;
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default:
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$opt['feed_type'] = 'RSS1.0';
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$opt['mime_type'] = 'application/xml';
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}
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$eventData = [
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'opt' => &$opt,
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];
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Event::createAndTrigger('FEED_OPTS_POSTPROCESS', $eventData);
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return $opt;
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}
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/**
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* Add recent changed pages to a feed object
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*
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* @param FeedCreator $rss the FeedCreator Object
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* @param array $data the items to add
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* @param array $opt the feed options
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function rss_buildItems(&$rss, &$data, $opt)
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{
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global $conf;
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global $lang;
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/* @var AuthPlugin $auth */
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global $auth;
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$eventData = [
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'rss' => &$rss,
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'data' => &$data,
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'opt' => &$opt,
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];
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$event = new Event('FEED_DATA_PROCESS', $eventData);
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if ($event->advise_before(false)) {
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foreach ($data as $ditem) {
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if (!is_array($ditem)) {
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// not an array? then only a list of IDs was given
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$ditem = ['id' => $ditem];
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}
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$item = new FeedItem();
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$id = $ditem['id'];
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if (empty($ditem['media'])) {
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$meta = p_get_metadata($id);
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} else {
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$meta = [];
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}
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// add date
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if (isset($ditem['date'])) {
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$date = $ditem['date'];
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} elseif ($ditem['media']) {
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$date = @filemtime(mediaFN($id));
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} elseif (file_exists(wikiFN($id))) {
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$date = @filemtime(wikiFN($id));
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} elseif ($meta['date']['modified']) {
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$date = $meta['date']['modified'];
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} else {
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$date = 0;
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}
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if ($date) $item->date = date('r', $date);
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// add title
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if ($conf['useheading'] && $meta['title'] ?? '') {
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$item->title = $meta['title'];
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} else {
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$item->title = $ditem['id'];
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}
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if ($conf['rss_show_summary'] && !empty($ditem['sum'])) {
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$item->title .= ' - ' . strip_tags($ditem['sum']);
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}
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// add item link
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switch ($opt['link_to']) {
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case 'page':
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if (isset($ditem['media'])) {
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$item->link = media_managerURL(
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[
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'image' => $id,
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'ns' => getNS($id),
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'rev' => $date
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],
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'&',
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true
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);
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} else {
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$item->link = wl($id, 'rev=' . $date, true, '&');
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}
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break;
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case 'rev':
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if ($ditem['media']) {
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$item->link = media_managerURL(
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[
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'image' => $id,
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'ns' => getNS($id),
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'rev' => $date,
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'tab_details' => 'history'
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],
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'&',
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true
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);
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} else {
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$item->link = wl($id, 'do=revisions&rev=' . $date, true, '&');
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}
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break;
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case 'current':
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if ($ditem['media']) {
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$item->link = media_managerURL(
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[
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'image' => $id,
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'ns' => getNS($id)
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],
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'&',
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true
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);
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} else {
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$item->link = wl($id, '', true, '&');
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}
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break;
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case 'diff':
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default:
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if ($ditem['media']) {
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$item->link = media_managerURL(
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[
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'image' => $id,
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'ns' => getNS($id),
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'rev' => $date,
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'tab_details' => 'history',
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'mediado' => 'diff'
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],
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'&',
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true
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);
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} else {
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$item->link = wl($id, 'rev=' . $date . '&do=diff', true, '&');
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}
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}
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// add item content
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switch ($opt['item_content']) {
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case 'diff':
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case 'htmldiff':
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if ($ditem['media']) {
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$medialog = new MediaChangeLog($id);
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$revs = $medialog->getRevisions(0, 1);
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$rev = $revs[0];
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$src_r = '';
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$src_l = '';
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if ($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)), 300)) {
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$more = 'w=' . $size[0] . '&h=' . $size[1] . '&t=' . @filemtime(mediaFN($id));
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$src_r = ml($id, $more, true, '&', true);
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}
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if ($rev && $size = media_image_preview_size($id, $rev, new JpegMeta(mediaFN($id, $rev)),
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300)) {
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$more = 'rev=' . $rev . '&w=' . $size[0] . '&h=' . $size[1];
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$src_l = ml($id, $more, true, '&', true);
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}
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$content = '';
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if ($src_r) {
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$content = '<table>';
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$content .= '<tr><th width="50%">' . $rev . '</th>';
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$content .= '<th width="50%">' . $lang['current'] . '</th></tr>';
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$content .= '<tr align="center"><td><img src="' . $src_l . '" alt="" /></td><td>';
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$content .= '<img src="' . $src_r . '" alt="' . $id . '" /></td></tr>';
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$content .= '</table>';
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}
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} else {
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require_once(DOKU_INC . 'inc/DifferenceEngine.php');
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$pagelog = new PageChangeLog($id);
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$revs = $pagelog->getRevisions(0, 1);
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$rev = $revs[0];
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if ($rev) {
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$df = new Diff(
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explode("\n", rawWiki($id, $rev)),
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explode("\n", rawWiki($id, ''))
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);
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} else {
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$df = new Diff(
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[''],
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explode("\n", rawWiki($id, ''))
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);
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}
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if ($opt['item_content'] == 'htmldiff') {
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// note: no need to escape diff output, TableDiffFormatter provides 'safe' html
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$tdf = new TableDiffFormatter();
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$content = '<table>';
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$content .= '<tr><th colspan="2" width="50%">' . $rev . '</th>';
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|
$content .= '<th colspan="2" width="50%">' . $lang['current'] . '</th></tr>';
|
||
|
|
$content .= $tdf->format($df);
|
||
|
|
$content .= '</table>';
|
||
|
|
} else {
|
||
|
|
// note: diff output must be escaped, UnifiedDiffFormatter provides plain text
|
||
|
|
$udf = new UnifiedDiffFormatter();
|
||
|
|
$content = "<pre>\n" . hsc($udf->format($df)) . "\n</pre>";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'html':
|
||
|
|
if ($ditem['media']) {
|
||
|
|
if ($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)))) {
|
||
|
|
$more = 'w=' . $size[0] . '&h=' . $size[1] . '&t=' . @filemtime(mediaFN($id));
|
||
|
|
$src = ml($id, $more, true, '&', true);
|
||
|
|
$content = '<img src="' . $src . '" alt="' . $id . '" />';
|
||
|
|
} else {
|
||
|
|
$content = '';
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (@filemtime(wikiFN($id)) === $date) {
|
||
|
|
$content = p_wiki_xhtml($id, '', false);
|
||
|
|
} else {
|
||
|
|
$content = p_wiki_xhtml($id, $date, false);
|
||
|
|
}
|
||
|
|
// no TOC in feeds
|
||
|
|
$content = preg_replace('/(<!-- TOC START -->).*(<!-- TOC END -->)/s', '', $content);
|
||
|
|
|
||
|
|
// add alignment for images
|
||
|
|
$content = preg_replace('/(<img .*?class="medialeft")/s', '\\1 align="left"', $content);
|
||
|
|
$content = preg_replace('/(<img .*?class="mediaright")/s', '\\1 align="right"', $content);
|
||
|
|
|
||
|
|
// make URLs work when canonical is not set, regexp instead of rerendering!
|
||
|
|
if (!$conf['canonical']) {
|
||
|
|
$base = preg_quote(DOKU_REL, '/');
|
||
|
|
$content = preg_replace(
|
||
|
|
'/(<a href|<img src)="(' . $base . ')/s', '$1="' . DOKU_URL,
|
||
|
|
$content
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
case 'abstract':
|
||
|
|
default:
|
||
|
|
if (isset($ditem['media'])) {
|
||
|
|
if ($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)))) {
|
||
|
|
$more = 'w=' . $size[0] . '&h=' . $size[1] . '&t=' . @filemtime(mediaFN($id));
|
||
|
|
$src = ml($id, $more, true, '&', true);
|
||
|
|
$content = '<img src="' . $src . '" alt="' . $id . '" />';
|
||
|
|
} else {
|
||
|
|
$content = '';
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$content = $meta['description']['abstract'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$item->description = $content; //FIXME a plugin hook here could be senseful
|
||
|
|
|
||
|
|
// add user
|
||
|
|
# FIXME should the user be pulled from metadata as well?
|
||
|
|
$user = @$ditem['user']; // the @ spares time repeating lookup
|
||
|
|
if (blank($user)) {
|
||
|
|
$item->author = 'Anonymous';
|
||
|
|
$item->authorEmail = 'anonymous@undisclosed.example.com';
|
||
|
|
} else {
|
||
|
|
$item->author = $user;
|
||
|
|
$item->authorEmail = $user . '@undisclosed.example.com';
|
||
|
|
|
||
|
|
// get real user name if configured
|
||
|
|
if ($conf['useacl'] && $auth) {
|
||
|
|
$userInfo = $auth->getUserData($user);
|
||
|
|
if ($userInfo) {
|
||
|
|
switch ($conf['showuseras']) {
|
||
|
|
case 'username':
|
||
|
|
case 'username_link':
|
||
|
|
$item->author = $userInfo['name'];
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
$item->author = $user;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$item->author = $user;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// add category
|
||
|
|
if (isset($meta['subject'])) {
|
||
|
|
$item->category = $meta['subject'];
|
||
|
|
} else {
|
||
|
|
$cat = getNS($id);
|
||
|
|
if ($cat) $item->category = $cat;
|
||
|
|
}
|
||
|
|
|
||
|
|
// finally add the item to the feed object, after handing it to registered plugins
|
||
|
|
$evdata = [
|
||
|
|
'item' => &$item,
|
||
|
|
'opt' => &$opt,
|
||
|
|
'ditem' => &$ditem,
|
||
|
|
'rss' => &$rss
|
||
|
|
];
|
||
|
|
$evt = new Event('FEED_ITEM_ADD', $evdata);
|
||
|
|
if ($evt->advise_before()) {
|
||
|
|
$rss->addItem($item);
|
||
|
|
}
|
||
|
|
$evt->advise_after(); // for completeness
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$event->advise_after();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add recent changed pages to the feed object
|
||
|
|
*
|
||
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
|
*/
|
||
|
|
function rssRecentChanges($opt)
|
||
|
|
{
|
||
|
|
global $conf;
|
||
|
|
$flags = 0;
|
||
|
|
if (!$conf['rss_show_deleted']) $flags += RECENTS_SKIP_DELETED;
|
||
|
|
if (!$opt['show_minor']) $flags += RECENTS_SKIP_MINORS;
|
||
|
|
if ($opt['only_new']) $flags += RECENTS_ONLY_CREATION;
|
||
|
|
if ($opt['content_type'] == 'media' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_CHANGES;
|
||
|
|
if ($opt['content_type'] == 'both' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_PAGES_MIXED;
|
||
|
|
|
||
|
|
$recents = getRecents(0, $opt['items'], $opt['namespace'], $flags);
|
||
|
|
return $recents;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add all pages of a namespace to the feed object
|
||
|
|
*
|
||
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
|
*/
|
||
|
|
function rssListNamespace($opt)
|
||
|
|
{
|
||
|
|
require_once(DOKU_INC . 'inc/search.php');
|
||
|
|
global $conf;
|
||
|
|
|
||
|
|
$ns = ':' . cleanID($opt['namespace']);
|
||
|
|
$ns = utf8_encodeFN(str_replace(':', '/', $ns));
|
||
|
|
|
||
|
|
$data = [];
|
||
|
|
$search_opts = [
|
||
|
|
'depth' => 1,
|
||
|
|
'pagesonly' => true,
|
||
|
|
'listfiles' => true
|
||
|
|
];
|
||
|
|
search($data, $conf['datadir'], 'search_universal', $search_opts, $ns, $lvl = 1, $opt['sort']);
|
||
|
|
|
||
|
|
return $data;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add the result of a full text search to the feed object
|
||
|
|
*
|
||
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
|
*/
|
||
|
|
function rssSearch($opt)
|
||
|
|
{
|
||
|
|
if (!$opt['search_query'] || !actionOK('search')) return [];
|
||
|
|
|
||
|
|
require_once(DOKU_INC . 'inc/fulltext.php');
|
||
|
|
$data = ft_pageSearch($opt['search_query'], $poswords);
|
||
|
|
$data = array_keys($data);
|
||
|
|
|
||
|
|
return $data;
|
||
|
|
}
|
||
|
|
|
||
|
|
//Setup VIM: ex: et ts=4 :
|