Initial release - example User Maintenance HealthCheck plugin

administrator/language/en-GB/plg_healthcheck_usermaintenance.ini

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+; Joomla! Project
+; (C) 2026 Open Source Matters, Inc. <https://www.joomla.org>
+; License GNU General Public License version 2 or later; see LICENSE.txt
+; Note : All ini files need to be saved as UTF-8
+
+PLG_HEALTHCHECK_USERMAINTENANCE="HealthCheck - UserMaintenance"
+PLG_HEALTHCHECK_USERMAINTENANCE_ACTION_LABEL="Visit the user management"
+PLG_HEALTHCHECK_USERMAINTENANCE_CHECKISDEACTIVATED="This check is deactivated in the plugin configuration"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETINACTIVE_ERROR="Error while trying to get the number of inactive users"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETNEVERLOGGEDIN_ERROR="Error while trying to get the number of never logged-in users"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETNONMFA_ERROR="Error while trying to get the number of users without MFA activated"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETUNACTIVATED_ERROR="Error while trying to get the number of users who did not finish the activation process"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETORPHAN_ERROR="Error while trying to get the number of users without an assigned usergroup"
+PLG_HEALTHCHECK_USERMAINTENANCE_GETPRIVILEGED_ERROR="Error while trying to get the number of users with higher privileges"
+PLG_HEALTHCHECK_USERMAINTENANCE_GROUP_DESC="The group of this plugin (this value is compared with the group value used in <strong>HealthCheck</strong> modules to inject icons)."
+PLG_HEALTHCHECK_USERMAINTENANCE_GROUP_LABEL="Group"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVETIMESPAN_DESC="Days since last login to be considered inactive"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVETIMESPAN_LABEL="Days since last login"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVETIMESPAN_M3="90"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVETIMESPAN_M6="180"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVETIMESPAN_Y1="360"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVE_LISTTEXT="Inactive users"
+PLG_HEALTHCHECK_USERMAINTENANCE_INACTIVE_LISTNOTE="Users who did not login in the last few months"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_DESC="How (where) to show any errors"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_LABEL="Error logging"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_VALUE_NOLOG="No logging"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_VALUE_PHPLOG="PHP error log"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_VALUE_JOOMLALOG="Joomla! log"
+PLG_HEALTHCHECK_USERMAINTENANCE_LOGGING_VALUE_MESSAGE="Enqueue message"
+PLG_HEALTHCHECK_USERMAINTENANCE_MODULE_TITLE="User maintenance"
+PLG_HEALTHCHECK_USERMAINTENANCE_MODULE_MESSAGE="This is a list of maintenance and integrity checks on the users of your website."
+PLG_HEALTHCHECK_USERMAINTENANCE_NONMFA_LISTTEXT="active users without MFA"
+PLG_HEALTHCHECK_USERMAINTENANCE_NONMFA_LISTNOTE="Users (activated) who have not configured MultiFactorAuthentication (MFA)"
+PLG_HEALTHCHECK_USERMAINTENANCE_NEVERLOGGEDIN_LISTTEXT="Never logged in users"
+PLG_HEALTHCHECK_USERMAINTENANCE_NEVERLOGGEDIN_LISTNOTE="Users who created an account, but never actually logged in"
+PLG_HEALTHCHECK_USERMAINTENANCE_ORPHAN_LISTTEXT="Users with no usergroup"
+PLG_HEALTHCHECK_USERMAINTENANCE_ORPHAN_LISTNOTE="Users who have no usergroup assigned"
+PLG_HEALTHCHECK_USERMAINTENANCE_PRIVILEGED_LISTTEXT="Users with higher privileges"
+PLG_HEALTHCHECK_USERMAINTENANCE_PRIVILEGED_LISTNOTE="Users who are granted administrator or super user privileges"
+PLG_HEALTHCHECK_USERMAINTENANCE_UNACTIVATED_LISTTEXT="Unactivated users"
+PLG_HEALTHCHECK_USERMAINTENANCE_UNACTIVATED_LISTNOTE="Users who created an account, but did not finish the activation process"
+PLG_HEALTHCHECK_USERMAINTENANCE_XML_DESCRIPTION="This HealthCheck plugin gives you an oversight about the number of unhealthy user accounts."

administrator/language/en-GB/plg_healthcheck_usermaintenance.sys.ini

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+; Joomla! Project
+; (C) 2026 Open Source Matters, Inc. <https://www.joomla.org>
+; License GNU General Public License version 2 or later; see LICENSE.txt
+; Note : All ini files need to be saved as UTF-8
+
+PLG_HEALTHCHECK_USERMAINTENANCE="HealthCheck - UserMaintenance"
+PLG_HEALTHCHECK_USERMAINTENANCE_XML_DESCRIPTION="This HealthCheck plugin gives you an oversight about the number of unhealthy user accounts."

plugins/healthcheck/usermaintenance/services/provider.php

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+<?php
+
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  Healthcheck.UserMaintenance
+ *
+ * @copyright   (C) 2026 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+use Joomla\CMS\Extension\PluginInterface;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Plugin\PluginHelper;
+use Joomla\Database\DatabaseInterface;
+use Joomla\DI\Container;
+use Joomla\DI\ServiceProviderInterface;
+use Joomla\Plugin\Healthcheck\UserMaintenance\Extension\UserMaintenance;
+
+return new class () implements ServiceProviderInterface {
+    /**
+     * Registers the service provider with a DI container.
+     *
+     * @param   Container  $container  The DI container.
+     *
+     * @return  void
+     *
+     * @since   __DEPLOY_VERSION__
+     */
+    public function register(Container $container): void
+    {
+        $container->set(
+            PluginInterface::class,
+            $container->lazy(UserMaintenance::class, function (Container $container) {
+                $plugin = new UserMaintenance(
+                    (array) PluginHelper::getPlugin('healthcheck', 'usermaintenance')
+                );
+
+                $plugin->setApplication(Factory::getApplication());
+                $plugin->setDatabase($container->get(DatabaseInterface::class));
+
+                return $plugin;
+            })
+        );
+    }
+};