diff core/modules/toolbar/src/Controller/ToolbarController.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/toolbar/src/Controller/ToolbarController.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,55 @@
+<?php
+
+namespace Drupal\toolbar\Controller;
+
+use Drupal\Component\Utility\Crypt;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Ajax\AjaxResponse;
+use Drupal\Core\Controller\ControllerBase;
+use Drupal\toolbar\Ajax\SetSubtreesCommand;
+
+/**
+ * Defines a controller for the toolbar module.
+ */
+class ToolbarController extends ControllerBase {
+
+  /**
+   * Returns an AJAX response to render the toolbar subtrees.
+   *
+   * @return \Drupal\Core\Ajax\AjaxResponse
+   */
+  public function subtreesAjax() {
+    list($subtrees, $cacheability) = toolbar_get_rendered_subtrees();
+    $response = new AjaxResponse();
+    $response->addCommand(new SetSubtreesCommand($subtrees));
+
+    // The Expires HTTP header is the heart of the client-side HTTP caching. The
+    // additional server-side page cache only takes effect when the client
+    // accesses the callback URL again (e.g., after clearing the browser cache
+    // or when force-reloading a Drupal page).
+    $max_age = 365 * 24 * 60 * 60;
+    $response->setPrivate();
+    $response->setMaxAge($max_age);
+
+    $expires = new \DateTime();
+    $expires->setTimestamp(REQUEST_TIME + $max_age);
+    $response->setExpires($expires);
+
+    return $response;
+  }
+
+  /**
+   * Checks access for the subtree controller.
+   *
+   * @param string $hash
+   *   The hash of the toolbar subtrees.
+   *
+   * @return \Drupal\Core\Access\AccessResultInterface
+   *   The access result.
+   */
+  public function checkSubTreeAccess($hash) {
+    $expected_hash = _toolbar_get_subtrees_hash()[0];
+    return AccessResult::allowedIf($this->currentUser()->hasPermission('access toolbar') && Crypt::hashEquals($expected_hash, $hash))->cachePerPermissions();
+  }
+
+}