authx - Support Backdrop users+sessions

diff --git a/ext/authx/Civi/Authx/Backdrop.php b/ext/authx/Civi/Authx/Backdrop.php
new file mode 100644 (file)
index 0000000..c2d248f
--- /dev/null
+++ b/ext/authx/Civi/Authx/Backdrop.php
@@ -0,0 +1,58 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+
+namespace Civi\Authx;
+
+class Backdrop implements AuthxInterface {
+
+  /**
+   * @inheritDoc
+   */
+  public function checkPassword(string $username, string $password) {
+    $uid = user_authenticate($username, $password);
+    // Ensure strict nullness.
+    return $uid ? $uid : NULL;
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function loginSession($userId) {
+    global $user;
+    $user = user_load($userId);
+    user_login_finalize();
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function logoutSession() {
+    module_load_include('inc', 'user', 'user.pages');
+    user_logout();
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function loginStateless($userId) {
+    global $user;
+    $user = user_load($userId);
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function getCurrentUserId() {
+    global $user;
+    return $user && $user->uid ? $user->uid : NULL;
+  }
+
+}