76 lines
2.0 KiB
PHP
76 lines
2.0 KiB
PHP
<?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 $INPUT
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*/
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use dokuwiki\Feed\FeedCreator;
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use dokuwiki\Feed\FeedCreatorOptions;
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use dokuwiki\Cache\Cache;
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use dokuwiki\ChangeLog\MediaChangeLog;
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use dokuwiki\ChangeLog\PageChangeLog;
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use dokuwiki\Extension\AuthPlugin;
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use dokuwiki\Extension\Event;
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if (!defined('DOKU_INC')) define('DOKU_INC', __DIR__ . '/');
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require_once(DOKU_INC . 'inc/init.php');
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//close session
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session_write_close();
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//feed disabled?
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if (!actionOK('rss')) {
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http_status(404);
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echo '<error>RSS feed is disabled.</error>';
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exit;
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}
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$options = new FeedCreatorOptions();
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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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$key = implode('$', [
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$options->getCacheKey(),
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$INPUT->server->str('REMOTE_USER'),
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$INPUT->server->str('HTTP_HOST'),
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$INPUT->server->str('SERVER_PORT')
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]);
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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: ' . $options->getMimeType());
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header('X-Robots-Tag: noindex');
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if ($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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echo $cache->retrieveCache();
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exit;
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} else {
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http_conditionalRequest(time());
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}
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// create new feed
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try {
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$feed = (new FeedCreator($options))->build();
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$cache->storeCache($feed);
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echo $feed;
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} catch (Exception $e) {
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http_status(500);
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echo '<error>' . hsc($e->getMessage()) . '</error>';
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exit;
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}
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