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

core/modules/contact/src/Access/ContactPageAccess.php

@@ -0,0 +1,104 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\contact\Access\ContactPageAccess.
+ */
+
+namespace Drupal\contact\Access;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Routing\Access\AccessInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\user\UserDataInterface;
+use Drupal\user\UserInterface;
+
+/**
+ * Access check for contact_personal_page route.
+ */
+class ContactPageAccess implements AccessInterface {
+
+  /**
+   * The contact settings config object.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * The user data service.
+   *
+   * @var \Drupal\user\UserDataInterface;
+   */
+  protected $userData;
+
+  /**
+   * Constructs a ContactPageAccess instance.
+   *
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The config factory.
+   * @param \Drupal\user\UserDataInterface $user_data
+   *   The user data service.
+   */
+  public function __construct(ConfigFactoryInterface $config_factory, UserDataInterface $user_data) {
+    $this->configFactory = $config_factory;
+    $this->userData = $user_data;
+  }
+
+  /**
+   * Checks access to the given user's contact page.
+   *
+   * @param \Drupal\user\UserInterface $user
+   *   The user being contacted.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The currently logged in account.
+   *
+   * @return \Drupal\Core\Access\AccessResultInterface
+   *   The access result.
+   */
+  public function access(UserInterface $user, AccountInterface $account) {
+    $contact_account = $user;
+
+    // Anonymous users cannot have contact forms.
+    if ($contact_account->isAnonymous()) {
+      return AccessResult::forbidden();
+    }
+
+    // Users may not contact themselves by default, hence this requires user
+    // granularity for caching.
+    $access = AccessResult::neutral()->cachePerUser();
+    if ($account->id() == $contact_account->id()) {
+      return $access;
+    }
+
+    // User administrators should always have access to personal contact forms.
+    $permission_access = AccessResult::allowedIfHasPermission($account, 'administer users');
+    if ($permission_access->isAllowed()) {
+      return $access->orIf($permission_access);
+    }
+
+    // If requested user has been blocked, do not allow users to contact them.
+    $access->cacheUntilEntityChanges($contact_account);
+    if ($contact_account->isBlocked()) {
+      return $access;
+    }
+
+    // Forbid access if the requested user has disabled their contact form.
+    $account_data = $this->userData->get('contact', $contact_account->id(), 'enabled');
+    if (isset($account_data) && !$account_data) {
+      return $access;
+    }
+
+    // If the requested user did not save a preference yet, deny access if the
+    // configured default is disabled.
+    $contact_settings = $this->configFactory->get('contact.settings');
+    $access->cacheUntilConfigurationChanges($contact_settings);
+    if (!isset($account_data) && !$contact_settings->get('user_default_enabled')) {
+      return $access;
+    }
+
+    return $access->orIf(AccessResult::allowedIfHasPermission($account, 'access user contact forms'));
+  }
+
+}