Chris@0: <?php
Chris@0: 
Chris@0: /**
Chris@0:  * @file
Chris@0:  * Theming for maintenance pages.
Chris@0:  */
Chris@0: 
Chris@0: use Drupal\Core\Site\Settings;
Chris@0: 
Chris@0: /**
Chris@0:  * Sets up the theming system for maintenance page.
Chris@0:  *
Chris@0:  * Used for site installs, updates and when the site is in maintenance mode.
Chris@0:  * It also applies when the database is unavailable or bootstrap was not
Chris@0:  * complete. Seven is always used for the initial install and update
Chris@0:  * operations. In other cases, Bartik is used, but this can be overridden by
Chris@0:  * setting a "maintenance_theme" key in the $settings variable in settings.php.
Chris@0:  */
Chris@0: function _drupal_maintenance_theme() {
Chris@0:   // If the theme is already set, assume the others are set too, and do nothing.
Chris@0:   if (\Drupal::theme()->hasActiveTheme()) {
Chris@0:     return;
Chris@0:   }
Chris@0: 
Chris@0:   require_once __DIR__ . '/theme.inc';
Chris@0:   require_once __DIR__ . '/common.inc';
Chris@0:   require_once __DIR__ . '/unicode.inc';
Chris@0:   require_once __DIR__ . '/file.inc';
Chris@0:   require_once __DIR__ . '/module.inc';
Chris@0:   require_once __DIR__ . '/database.inc';
Chris@0: 
Chris@0:   // Install and update pages are treated differently to prevent theming overrides.
Chris@0:   if (defined('MAINTENANCE_MODE') && (MAINTENANCE_MODE == 'install' || MAINTENANCE_MODE == 'update')) {
Chris@0:     if (drupal_installation_attempted()) {
Chris@0:       $custom_theme = $GLOBALS['install_state']['theme'];
Chris@0:     }
Chris@0:     else {
Chris@0:       $custom_theme = Settings::get('maintenance_theme', 'seven');
Chris@0:     }
Chris@0:   }
Chris@0:   else {
Chris@0:     // Use the maintenance theme if specified, otherwise attempt to use the
Chris@0:     // default site theme.
Chris@0:     try {
Chris@0:       $custom_theme = Settings::get('maintenance_theme', '');
Chris@0:       if (!$custom_theme) {
Chris@0:         $config = \Drupal::config('system.theme');
Chris@0:         $custom_theme = $config->get('default');
Chris@0:       }
Chris@0:     }
Chris@0:     catch (\Exception $e) {
Chris@0:       // Whatever went wrong (often a database connection problem), we are
Chris@0:       // about to fall back to a sensible theme so there is no need for special
Chris@0:       // handling.
Chris@0:     }
Chris@0:     if (!$custom_theme) {
Chris@0:       // We have been unable to identify the configured theme, so fall back to
Chris@0:       // a safe default. Bartik is reasonably user friendly and fairly generic.
Chris@0:       $custom_theme = 'bartik';
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   $themes = \Drupal::service('theme_handler')->listInfo();
Chris@0: 
Chris@0:   // If no themes are installed yet, or if the requested custom theme is not
Chris@0:   // installed, retrieve all available themes.
Chris@0:   /** @var \Drupal\Core\Theme\ThemeInitialization $theme_init */
Chris@0:   $theme_init = \Drupal::service('theme.initialization');
Chris@0:   $theme_handler = \Drupal::service('theme_handler');
Chris@0:   if (empty($themes) || !isset($themes[$custom_theme])) {
Chris@18:     $themes = \Drupal::service('extension.list.theme')->getList();
Chris@0:     $theme_handler->addTheme($themes[$custom_theme]);
Chris@0:   }
Chris@0: 
Chris@0:   // \Drupal\Core\Extension\ThemeHandlerInterface::listInfo() triggers a
Chris@0:   // \Drupal\Core\Extension\ModuleHandler::alter() in maintenance mode, but we
Chris@0:   // can't let themes alter the .info.yml data until we know a theme's base
Chris@0:   // themes. So don't set active theme until after
Chris@0:   // \Drupal\Core\Extension\ThemeHandlerInterface::listInfo() builds its cache.
Chris@0:   $theme = $custom_theme;
Chris@0: 
Chris@0:   // Find all our ancestor themes and put them in an array.
Chris@0:   // @todo This is just a workaround. Find a better way how to handle themes
Chris@0:   //   on maintenance pages, see https://www.drupal.org/node/2322619.
Chris@0:   // This code is basically a duplicate of
Chris@0:   // \Drupal\Core\Theme\ThemeInitialization::getActiveThemeByName.
Chris@0:   $base_themes = [];
Chris@0:   $ancestor = $theme;
Chris@0:   while ($ancestor && isset($themes[$ancestor]->base_theme)) {
Chris@0:     $base_themes[] = $themes[$themes[$ancestor]->base_theme];
Chris@0:     $ancestor = $themes[$ancestor]->base_theme;
Chris@0:     if ($ancestor) {
Chris@0:       // Ensure that the base theme is added and installed.
Chris@0:       $theme_handler->addTheme($themes[$ancestor]);
Chris@0:     }
Chris@0:   }
Chris@0:   \Drupal::theme()->setActiveTheme($theme_init->getActiveTheme($themes[$custom_theme], $base_themes));
Chris@0:   // Prime the theme registry.
Chris@0:   Drupal::service('theme.registry');
Chris@0: }
Chris@0: 
Chris@0: /**
Chris@0:  * Prepares variables for authorize.php operation report templates.
Chris@0:  *
Chris@0:  * This report displays the results of an operation run via authorize.php.
Chris@0:  *
Chris@0:  * Default template: authorize-report.html.twig.
Chris@0:  *
Chris@0:  * @param array $variables
Chris@0:  *   An associative array containing:
Chris@0:  *   - messages: An array of result messages.
Chris@0:  */
Chris@0: function template_preprocess_authorize_report(&$variables) {
Chris@0:   $messages = [];
Chris@0:   if (!empty($variables['messages'])) {
Chris@0:     foreach ($variables['messages'] as $heading => $logs) {
Chris@0:       $items = [];
Chris@0:       foreach ($logs as $number => $log_message) {
Chris@0:         if ($number === '#abort') {
Chris@0:           continue;
Chris@0:         }
Chris@0:         $class = 'authorize-results__' . ($log_message['success'] ? 'success' : 'failure');
Chris@0:         $items[] = [
Chris@0:           '#wrapper_attributes' => ['class' => [$class]],
Chris@0:           '#markup' => $log_message['message'],
Chris@0:         ];
Chris@0:       }
Chris@0:       $messages[] = [
Chris@0:         '#theme' => 'item_list',
Chris@0:         '#items' => $items,
Chris@0:         '#title' => $heading,
Chris@0:       ];
Chris@0:     }
Chris@0:   }
Chris@0:   $variables['messages'] = $messages;
Chris@0: }