96 lines
3.3 KiB
PHP
96 lines
3.3 KiB
PHP
<?php
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namespace Drupal\system;
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use Drupal\Core\Config\ConfigCrudEvent;
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use Drupal\Core\Config\ConfigEvents;
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use Drupal\Core\Config\ConfigImporterEvent;
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use Drupal\Core\Routing\RouteBuilderInterface;
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use Drupal\Core\StringTranslation\StringTranslationTrait;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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/**
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* System Config subscriber.
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*/
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class SystemConfigSubscriber implements EventSubscriberInterface {
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use StringTranslationTrait;
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/**
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* The router builder.
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*
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* @var \Drupal\Core\Routing\RouteBuilderInterface
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*/
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protected $routerBuilder;
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/**
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* Constructs the SystemConfigSubscriber.
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*
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* @param \Drupal\Core\Routing\RouteBuilderInterface $router_builder
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* The router builder service.
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*/
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public function __construct(RouteBuilderInterface $router_builder) {
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$this->routerBuilder = $router_builder;
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}
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/**
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* Rebuilds the router when the default or admin theme is changed.
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*
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* @param \Drupal\Core\Config\ConfigCrudEvent $event
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*/
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public function onConfigSave(ConfigCrudEvent $event) {
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$saved_config = $event->getConfig();
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if ($saved_config->getName() == 'system.theme' && ($event->isChanged('admin') || $event->isChanged('default'))) {
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$this->routerBuilder->setRebuildNeeded();
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}
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}
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/**
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* Checks that the configuration synchronization is valid.
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*
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* This event listener prevents deleting all configuration. If there is
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* nothing to import then event propagation is stopped because there is no
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* config import to validate.
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*
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* @param \Drupal\Core\Config\ConfigImporterEvent $event
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* The config import event.
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*/
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public function onConfigImporterValidateNotEmpty(ConfigImporterEvent $event) {
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$importList = $event->getConfigImporter()->getStorageComparer()->getSourceStorage()->listAll();
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if (empty($importList)) {
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$event->getConfigImporter()->logError($this->t('This import is empty and if applied would delete all of your configuration, so has been rejected.'));
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$event->stopPropagation();
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}
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}
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/**
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* Checks that the configuration synchronization is valid.
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*
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* This event listener checks that the system.site:uuid's in the source and
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* target match.
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*
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* @param \Drupal\Core\Config\ConfigImporterEvent $event
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* The config import event.
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*/
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public function onConfigImporterValidateSiteUUID(ConfigImporterEvent $event) {
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if (!$event->getConfigImporter()->getStorageComparer()->getSourceStorage()->exists('system.site')) {
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$event->getConfigImporter()->logError($this->t('This import does not contain system.site configuration, so has been rejected.'));
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}
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if (!$event->getConfigImporter()->getStorageComparer()->validateSiteUuid()) {
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$event->getConfigImporter()->logError($this->t('Site UUID in source storage does not match the target storage.'));
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}
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}
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/**
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* {@inheritdoc}
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*/
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public static function getSubscribedEvents() {
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$events[ConfigEvents::SAVE][] = ['onConfigSave', 0];
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// The empty check has a high priority so that it can stop propagation if
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// there is no configuration to import.
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$events[ConfigEvents::IMPORT_VALIDATE][] = ['onConfigImporterValidateNotEmpty', 512];
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$events[ConfigEvents::IMPORT_VALIDATE][] = ['onConfigImporterValidateSiteUUID', 256];
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return $events;
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}
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}
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