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<?php |
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namespace Elgg\SystemLog; |
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/** |
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* Hook callbacks for systemlog |
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* |
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* @since 4.0 |
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* @internal |
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*/ |
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class Logger { |
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/** |
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* Default system log handler, allows plugins to override, extend or disable logging. |
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* |
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* @param \Elgg\Event $event 'log', 'systemlog' |
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* |
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* @return true |
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*/ |
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public static function log(\Elgg\Event $event) { |
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$object = $event->getObject(); |
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SystemLog::instance()->insert($object['object'], $object['event']); |
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return true; |
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} |
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/** |
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* System log listener. |
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* This function listens to all events in the system and logs anything appropriate. |
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* |
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* @param \Elgg\Event $event 'all', 'all' |
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* |
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* @return void |
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*/ |
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public static function listen(\Elgg\Event $event) { |
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$type = $event->getType(); |
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$name = $event->getName(); |
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if ($type === 'systemlog' && $name === 'log') { |
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return; |
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} |
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// ignore before and after events if there are no event handlers registered |
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if (strpos($name, ':after') > 0 || strpos($name, ':before') > 0) { |
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if (!elgg()->events->hasHandler($name, $type) && !elgg()->events->hasHandler($name, 'all')) { |
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return; |
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} |
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} |
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elgg_trigger_event('log', 'systemlog', ['object' => $event->getObject(), 'event' => $event->getName()]); |
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} |
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/** |
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* Disables the logging |
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* |
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* @param \Elgg\Event $event 'all', 'all' |
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* |
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* @return true |
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*/ |
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public static function disableLogging(\Elgg\Event $event) { |
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// disable the system log for upgrades to avoid exceptions when the schema changes. |
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elgg_unregister_event_handler('log', 'systemlog', 'Elgg\SystemLog\Logger::log'); |
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elgg_unregister_event_handler('all', 'all', 'Elgg\SystemLog\Logger::listen'); |
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} |
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} |
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