Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\config\Controller;
Chris@0: 
Chris@0: use Drupal\Core\Archiver\ArchiveTar;
Chris@0: use Drupal\Core\Config\ConfigManagerInterface;
Chris@0: use Drupal\Core\Config\StorageInterface;
Chris@0: use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
Chris@0: use Drupal\Core\Diff\DiffFormatter;
Chris@18: use Drupal\Core\File\Exception\FileException;
Chris@18: use Drupal\Core\File\FileSystemInterface;
Chris@0: use Drupal\Core\Serialization\Yaml;
Chris@0: use Drupal\Core\Url;
Chris@0: use Drupal\system\FileDownloadController;
Chris@0: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@0: use Symfony\Component\HttpFoundation\Request;
Chris@0: 
Chris@0: /**
Chris@0:  * Returns responses for config module routes.
Chris@0:  */
Chris@0: class ConfigController implements ContainerInjectionInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The target storage.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Config\StorageInterface
Chris@0:    */
Chris@0:   protected $targetStorage;
Chris@0: 
Chris@0:   /**
Chris@0:    * The source storage.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Config\StorageInterface
Chris@0:    */
Chris@0:   protected $sourceStorage;
Chris@0: 
Chris@0:   /**
Chris@0:    * The configuration manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Config\ConfigManagerInterface
Chris@0:    */
Chris@0:   protected $configManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * The file download controller.
Chris@0:    *
Chris@0:    * @var \Drupal\system\FileDownloadController
Chris@0:    */
Chris@0:   protected $fileDownloadController;
Chris@0: 
Chris@0:   /**
Chris@0:    * The diff formatter.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Diff\DiffFormatter
Chris@0:    */
Chris@0:   protected $diffFormatter;
Chris@0: 
Chris@0:   /**
Chris@18:    * The file system.
Chris@18:    *
Chris@18:    * @var \Drupal\Core\File\FileSystemInterface
Chris@18:    */
Chris@18:   protected $fileSystem;
Chris@18: 
Chris@18:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function create(ContainerInterface $container) {
Chris@0:     return new static(
Chris@0:       $container->get('config.storage'),
Chris@0:       $container->get('config.storage.sync'),
Chris@0:       $container->get('config.manager'),
Chris@0:       new FileDownloadController(),
Chris@18:       $container->get('diff.formatter'),
Chris@18:       $container->get('file_system')
Chris@0:     );
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a ConfigController object.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Config\StorageInterface $target_storage
Chris@0:    *   The target storage.
Chris@0:    * @param \Drupal\Core\Config\StorageInterface $source_storage
Chris@18:    *   The source storage.
Chris@18:    * @param \Drupal\Core\Config\ConfigManagerInterface $config_manager
Chris@18:    *   The config manager.
Chris@0:    * @param \Drupal\system\FileDownloadController $file_download_controller
Chris@0:    *   The file download controller.
Chris@18:    * @param \Drupal\Core\Diff\DiffFormatter $diff_formatter
Chris@18:    *   The diff formatter.
Chris@18:    * @param \Drupal\Core\File\FileSystemInterface $file_system
Chris@18:    *   The file system.
Chris@0:    */
Chris@18:   public function __construct(StorageInterface $target_storage, StorageInterface $source_storage, ConfigManagerInterface $config_manager, FileDownloadController $file_download_controller, DiffFormatter $diff_formatter, FileSystemInterface $file_system) {
Chris@0:     $this->targetStorage = $target_storage;
Chris@0:     $this->sourceStorage = $source_storage;
Chris@0:     $this->configManager = $config_manager;
Chris@0:     $this->fileDownloadController = $file_download_controller;
Chris@0:     $this->diffFormatter = $diff_formatter;
Chris@18:     $this->fileSystem = $file_system;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Downloads a tarball of the site configuration.
Chris@0:    */
Chris@0:   public function downloadExport() {
Chris@18:     try {
Chris@18:       $this->fileSystem->delete(file_directory_temp() . '/config.tar.gz');
Chris@18:     }
Chris@18:     catch (FileException $e) {
Chris@18:       // Ignore failed deletes.
Chris@18:     }
Chris@0: 
Chris@0:     $archiver = new ArchiveTar(file_directory_temp() . '/config.tar.gz', 'gz');
Chris@0:     // Get raw configuration data without overrides.
Chris@0:     foreach ($this->configManager->getConfigFactory()->listAll() as $name) {
Chris@0:       $archiver->addString("$name.yml", Yaml::encode($this->configManager->getConfigFactory()->get($name)->getRawData()));
Chris@0:     }
Chris@0:     // Get all override data from the remaining collections.
Chris@0:     foreach ($this->targetStorage->getAllCollectionNames() as $collection) {
Chris@0:       $collection_storage = $this->targetStorage->createCollection($collection);
Chris@0:       foreach ($collection_storage->listAll() as $name) {
Chris@0:         $archiver->addString(str_replace('.', '/', $collection) . "/$name.yml", Yaml::encode($collection_storage->read($name)));
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     $request = new Request(['file' => 'config.tar.gz']);
Chris@0:     return $this->fileDownloadController->download($request, 'temporary');
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Shows diff of specified configuration file.
Chris@0:    *
Chris@0:    * @param string $source_name
Chris@0:    *   The name of the configuration file.
Chris@0:    * @param string $target_name
Chris@0:    *   (optional) The name of the target configuration file if different from
Chris@0:    *   the $source_name.
Chris@0:    * @param string $collection
Chris@0:    *   (optional) The configuration collection name. Defaults to the default
Chris@0:    *   collection.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   Table showing a two-way diff between the active and staged configuration.
Chris@0:    */
Chris@0:   public function diff($source_name, $target_name = NULL, $collection = NULL) {
Chris@0:     if (!isset($collection)) {
Chris@0:       $collection = StorageInterface::DEFAULT_COLLECTION;
Chris@0:     }
Chris@0:     $diff = $this->configManager->diff($this->targetStorage, $this->sourceStorage, $source_name, $target_name, $collection);
Chris@0:     $this->diffFormatter->show_header = FALSE;
Chris@0: 
Chris@0:     $build = [];
Chris@0: 
Chris@0:     $build['#title'] = t('View changes of @config_file', ['@config_file' => $source_name]);
Chris@0:     // Add the CSS for the inline diff.
Chris@0:     $build['#attached']['library'][] = 'system/diff';
Chris@0: 
Chris@0:     $build['diff'] = [
Chris@0:       '#type' => 'table',
Chris@0:       '#attributes' => [
Chris@0:         'class' => ['diff'],
Chris@0:       ],
Chris@0:       '#header' => [
Chris@0:         ['data' => t('Active'), 'colspan' => '2'],
Chris@0:         ['data' => t('Staged'), 'colspan' => '2'],
Chris@0:       ],
Chris@0:       '#rows' => $this->diffFormatter->format($diff),
Chris@0:     ];
Chris@0: 
Chris@0:     $build['back'] = [
Chris@0:       '#type' => 'link',
Chris@0:       '#attributes' => [
Chris@0:         'class' => [
Chris@0:           'dialog-cancel',
Chris@0:         ],
Chris@0:       ],
Chris@0:       '#title' => "Back to 'Synchronize configuration' page.",
Chris@0:       '#url' => Url::fromRoute('config.sync'),
Chris@0:     ];
Chris@0: 
Chris@0:     return $build;
Chris@0:   }
Chris@0: 
Chris@0: }