Remove csrf_protection.js file

symfony/stimulus-bundle/2.20/assets/controllers/csrf_protection_controller.js

@@ -1,4 +1,5 @@
-import { generateCsrfToken, generateCsrfHeaders, removeCsrfToken } from '../js/csrf_protection.js';
+const nameCheck = /^[-_a-zA-Z0-9]{4,22}$/;
+const tokenCheck = /^[-_/+a-zA-Z0-9]{24,}$/;
 
 // Generate and double-submit a CSRF token in a form field and a cookie, as defined by Symfony's SameOriginCsrfTokenManager
 document.addEventListener('submit', function (event) {
@@ -18,5 +19,60 @@ document.addEventListener('turbo:submit-end', function (event) {
     removeCsrfToken(event.detail.formSubmission.formElement);
 });
 
+export function generateCsrfToken (formElement) {
+    const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]');
+
+    if (!csrfField) {
+        return;
+    }
+
+    let csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value');
+    let csrfToken = csrfField.value;
+
+    if (!csrfCookie && nameCheck.test(csrfToken)) {
+        csrfField.setAttribute('data-csrf-protection-cookie-value', csrfCookie = csrfToken);
+        csrfField.defaultValue = csrfToken = btoa(String.fromCharCode.apply(null, (window.crypto || window.msCrypto).getRandomValues(new Uint8Array(18))));
+        csrfField.dispatchEvent(new Event('change', { bubbles: true }));
+    }
+
+    if (csrfCookie && tokenCheck.test(csrfToken)) {
+        const cookie = csrfCookie + '_' + csrfToken + '=' + csrfCookie + '; path=/; samesite=strict';
+        document.cookie = window.location.protocol === 'https:' ? '__Host-' + cookie + '; secure' : cookie;
+    }
+}
+
+export function generateCsrfHeaders (formElement) {
+    const headers = {};
+    const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]');
+
+    if (!csrfField) {
+        return headers;
+    }
+
+    const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value');
+
+    if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) {
+        headers[csrfCookie] = csrfField.value;
+    }
+
+    return headers;
+}
+
+export function removeCsrfToken (formElement) {
+    const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]');
+
+    if (!csrfField) {
+        return;
+    }
+
+    const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value');
+
+    if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) {
+        const cookie = csrfCookie + '_' + csrfField.value + '=0; path=/; samesite=strict; max-age=0';
+
+        document.cookie = window.location.protocol === 'https:' ? '__Host-' + cookie + '; secure' : cookie;
+    }
+}
+
 /* stimulusFetch: 'lazy' */
 export default 'csrf-protection-controller';