Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/config/src/Controller/ConfigController.php

@@ -0,0 +1,165 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\config\Controller\ConfigController.
+ */
+
+namespace Drupal\config\Controller;
+
+use Drupal\Core\Archiver\ArchiveTar;
+use Drupal\Component\Serialization\Yaml;
+use Drupal\Core\Config\ConfigManagerInterface;
+use Drupal\Core\Config\StorageInterface;
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Diff\DiffFormatter;
+use Drupal\Core\Url;
+use Drupal\system\FileDownloadController;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Returns responses for config module routes.
+ */
+class ConfigController implements ContainerInjectionInterface {
+
+  /**
+   * The target storage.
+   *
+   * @var \Drupal\Core\Config\StorageInterface
+   */
+  protected $targetStorage;
+
+  /**
+   * The source storage.
+   *
+   * @var \Drupal\Core\Config\StorageInterface
+   */
+  protected $sourceStorage;
+
+  /**
+   * The configuration manager.
+   *
+   * @var \Drupal\Core\Config\ConfigManagerInterface
+   */
+  protected $configManager;
+
+  /**
+   * The file download controller.
+   *
+   * @var \Drupal\system\FileDownloadController
+   */
+  protected $fileDownloadController;
+
+  /**
+   * The diff formatter.
+   *
+   * @var \Drupal\Core\Diff\DiffFormatter
+   */
+  protected $diffFormatter;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('config.storage'),
+      $container->get('config.storage.staging'),
+      $container->get('config.manager'),
+      new FileDownloadController(),
+      $container->get('diff.formatter')
+    );
+  }
+
+  /**
+   * Constructs a ConfigController object.
+   *
+   * @param \Drupal\Core\Config\StorageInterface $target_storage
+   *   The target storage.
+   * @param \Drupal\Core\Config\StorageInterface $source_storage
+   *   The source storage
+   * @param \Drupal\system\FileDownloadController $file_download_controller
+   *   The file download controller.
+   */
+  public function __construct(StorageInterface $target_storage, StorageInterface $source_storage, ConfigManagerInterface $config_manager, FileDownloadController $file_download_controller, DiffFormatter $diff_formatter) {
+    $this->targetStorage = $target_storage;
+    $this->sourceStorage = $source_storage;
+    $this->configManager = $config_manager;
+    $this->fileDownloadController = $file_download_controller;
+    $this->diffFormatter = $diff_formatter;
+  }
+
+  /**
+   * Downloads a tarball of the site configuration.
+   */
+  public function downloadExport() {
+    file_unmanaged_delete(file_directory_temp() . '/config.tar.gz');
+
+    $archiver = new ArchiveTar(file_directory_temp() . '/config.tar.gz', 'gz');
+    // Get raw configuration data without overrides.
+    foreach ($this->configManager->getConfigFactory()->listAll() as $name) {
+      $archiver->addString("$name.yml", Yaml::encode($this->configManager->getConfigFactory()->get($name)->getRawData()));
+    }
+    // Get all override data from the remaining collections.
+    foreach ($this->targetStorage->getAllCollectionNames() as $collection) {
+      $collection_storage = $this->targetStorage->createCollection($collection);
+      foreach ($collection_storage->listAll() as $name) {
+        $archiver->addString(str_replace('.', '/', $collection) . "/$name.yml", Yaml::encode($collection_storage->read($name)));
+      }
+    }
+
+    $request = new Request(array('file' => 'config.tar.gz'));
+    return $this->fileDownloadController->download($request, 'temporary');
+  }
+
+  /**
+   * Shows diff of specified configuration file.
+   *
+   * @param string $source_name
+   *   The name of the configuration file.
+   * @param string $target_name
+   *   (optional) The name of the target configuration file if different from
+   *   the $source_name.
+   * @param string $collection
+   *   (optional) The configuration collection name. Defaults to the default
+   *   collection.
+   *
+   * @return string
+   *   Table showing a two-way diff between the active and staged configuration.
+   */
+  public function diff($source_name, $target_name = NULL, $collection = NULL) {
+    if (!isset($collection)) {
+      $collection = StorageInterface::DEFAULT_COLLECTION;
+    }
+    $diff = $this->configManager->diff($this->targetStorage, $this->sourceStorage, $source_name, $target_name, $collection);
+    $this->diffFormatter->show_header = FALSE;
+
+    $build = array();
+
+    $build['#title'] = t('View changes of @config_file', array('@config_file' => $source_name));
+    // Add the CSS for the inline diff.
+    $build['#attached']['library'][] = 'system/diff';
+
+    $build['diff'] = array(
+      '#type' => 'table',
+      '#header' => array(
+        array('data' => t('Old'), 'colspan' => '2'),
+        array('data' => t('New'), 'colspan' => '2'),
+      ),
+      '#rows' => $this->diffFormatter->format($diff),
+    );
+
+    $build['back'] = array(
+      '#type' => 'link',
+      '#attributes' => array(
+        'class' => array(
+          'dialog-cancel',
+        ),
+      ),
+      '#title' => "Back to 'Synchronize configuration' page.",
+      '#url' => Url::fromRoute('config.sync'),
+    );
+
+    return $build;
+  }
+}