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lib/pkp/classes/form/validation/FormValidatorCSRF.php

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+<?php
+
+/**
+ * @file classes/form/validation/FormValidatorCSRF.php
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2000-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class FormValidatorCSRF
+ *
+ * @ingroup form_validation
+ *
+ * @brief Form validation check to make sure the CSRF token is correct.
+ */
+
+namespace PKP\form\validation;
+
+use APP\core\Application;
+
+class FormValidatorCSRF extends FormValidator
+{
+    /**
+     * Constructor.
+     *
+     * @param \PKP\form\Form $form
+     * @param string $message the locale key to use (optional)
+     */
+    public function __construct(&$form, $message = 'form.csrfInvalid')
+    {
+        parent::__construct($form, 'dummy', FormValidator::FORM_VALIDATOR_REQUIRED_VALUE, $message);
+    }
+
+
+    //
+    // Public methods
+    //
+    /**
+     * Check if the CSRF token is correct.
+     * overrides FormValidator::isValid()
+     *
+     * @return bool
+     */
+    public function isValid()
+    {
+        $request = Application::get()->getRequest();
+        return $request->checkCSRF();
+    }
+}
+
+if (!PKP_STRICT_MODE) {
+    class_alias('\PKP\form\validation\FormValidatorCSRF', '\FormValidatorCSRF');
+}