-$wallabagUrl = $conf->get('plugins.WALLABAG_URL');
-if (empty($wallabagUrl)) {
- $GLOBALS['plugin_errors'][] = 'Wallabag plugin error: '.
- 'Please define the "WALLABAG_URL" setting in the plugin administration page.';
+/**
+ * Init function, return an error if the server is not set.
+ *
+ * @param $conf ConfigManager instance.
+ *
+ * @return array Eventual error.
+ */
+function wallabag_init($conf)
+{
+ $wallabagUrl = $conf->get('plugins.WALLABAG_URL');
+ if (empty($wallabagUrl)) {
+ $error = 'Wallabag plugin error: '.
+ 'Please define the "WALLABAG_URL" setting in the plugin administration page.';
+ return array($error);
+ }