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<?php
/**
* cache.php
* Controller for managing system cache.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author Thomas Hackl <studip@thomas-hackl.name>
* @copyright 2020 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
* @since 5.0
*/
class Admin_CacheController extends AuthenticatedController
{
public function before_filter(&$action, &$args)
{
parent::before_filter($action, $args);
// Check permissions to be on this site
if (!$GLOBALS['perm']->have_perm('root')) {
throw new AccessDeniedException();
}
PageLayout::setTitle(_('Cache'));
Navigation::activateItem('/admin/config/cache');
$this->enabled = $GLOBALS['CACHING_ENABLE'];
$this->sidebar = Sidebar::get();
$views = new ViewsWidget();
$views->addLink(
_('Verwaltung'),
$this->url_for('admin/cache/settings')
)->setActive($action === 'settings');
if ($this->enabled) {
$views->addLink(
_('Statistiken'),
$this->url_for('admin/cache/stats')
)->setActive($action === 'stats');
}
$this->sidebar->addWidget($views);
if ($this->enabled) {
$actions = new ActionsWidget();
$actions->addLink(
_('Cache leeren'),
$this->url_for('admin/cache/flush'),
Icon::create('decline'),
['data-confirm' => _('Soll der gesamte Inhalt des Caches wirklich gelöscht werden?')]
);
$this->sidebar->addWidget($actions);
}
}
/**
* Show all available cache types.
*/
public function settings_action()
{
if ($this->enabled) {
$this->types = CacheType::findAndMapBySQL(function (CacheType $type) {
return $type->toArray();
}, "1 ORDER BY `cache_id`");
$currentCache = Config::get()->SYSTEMCACHE;
$currentCacheClass = CacheType::findOneByClass_name($currentCache['type']);
$this->cache = $currentCacheClass->class_name;
$this->config = $currentCacheClass->class_name::getConfig();
} else {
PageLayout::postWarning(
_('Caching ist systemweit ausgeschaltet, daher kann hier nichts konfiguriert werden.'));
}
}
/**
* Fetches necessary configuration for given cache type.
*
* @param string $className
*/
public function get_config_action($className)
{
$type = CacheType::findOneByClass_name($className);
$this->render_json($type->class_name::getConfig());
}
/**
* Stores cache settings to global config.
*/
public function store_settings_action()
{
// Take the whole Request object as array ...
$request = Request::getInstance()->getIterator()->getArrayCopy();
// ... remove cachetype entry as this is saved separately ...
unset($request['cachetype']);
// ... and use the rest of the request as cache config.
$settings = [
'type' => Request::get('cachetype'),
'config' => $request
];
// Store settings to global config.
if (Config::get()->store('SYSTEMCACHE', $settings)) {
PageLayout::postSuccess(_('Die Einstellungen wurden gespeichert.'));
StudipCacheFactory::unconfigure();
} else {
PageLayout::postError(_('Die Einstellungen konnten nicht gespeichert werden.'));
}
$this->relocate('admin/cache/settings');
}
/**
* Flush all cache content.
*/
public function flush_action()
{
$cache = StudipCacheFactory::getCache();
$cache->flush();
PageLayout::postSuccess(_('Die Inhalte des Caches wurden gelöscht.'));
$this->relocate('admin/cache/settings');
}
/**
* Show cache statistics.
*/
public function stats_action()
{
$cache = StudipCacheFactory::getCache();
$this->stats = $cache->getStats();
}
}
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