MDL-72173 behat: Add alternative login file for behat

lib/tests/behat/fastlogin.php

@@ -0,0 +1,59 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+// phpcs:disable moodle.Files.RequireLogin.Missing
+// phpcs:disable moodle.PHP.ForbiddenFunctions.Found
+
+/**
+ * Fast login end point for BEHAT TESTS ONLY.
+ *
+ * @package    theme_cfz
+ * @author     Guy Thomas
+ * @copyright  2021 Class Technologies Inc. {@link https://www.class.com/}
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+require(__DIR__.'/../../../config.php');
+
+$behatrunning = defined('BEHAT_SITE_RUNNING') && BEHAT_SITE_RUNNING;
+if (!$behatrunning) {
+    die;
+}
+
+$username = required_param('username', PARAM_ALPHANUMEXT);
+// Note - with behat, the password is always the same as the username.
+$password = $username;
+
+$failurereason = null;
+$user = authenticate_user_login($username, $password, true, $failurereason, false);
+if ($failurereason) {
+    error_log("Failed to login as behat step for $username with reason: " . $failurereason);
+    throw new Exception($failurereason);
+}
+if (!complete_user_login($user)) {
+    throw new Exception("Failed to login as behat step for $username");
+}
+
+$redirecturl = optional_param('redirecturl', null, PARAM_URL);
+$redirecturl = $redirecturl ?? $CFG->wwwroot;
+
+if (optional_param('forceeditmode', false, PARAM_INT)) {
+    $sesskey = sesskey();
+    $url = new moodle_url($redirecturl);
+    $url->param('edit', 1);
+    $url->param('sesskey', $sesskey);
+    $redirecturl = $url.'';
+}
+
+redirect($redirecturl);