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/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
define(function () {
'use strict';
return function (settings) {
var formKey,
inputElements,
inputSelector = 'input[name="form_key"]';
/**
* Set form_key cookie
* @private
*/
function setFormKeyCookie(value) {
var expires,
secure,
date = new Date(),
cookiesConfig = window.cookiesConfig || {},
isSecure = !!cookiesConfig.secure,
samesite = cookiesConfig.samesite || 'lax';
date.setTime(date.getTime() + 86400000);
expires = '; expires=' + date.toUTCString();
secure = isSecure ? '; secure' : '';
samesite = '; samesite=' + samesite;
document.cookie = 'form_key=' + (value || '') + expires + secure + '; path=/' + samesite;
}
/**
* Retrieves form key from cookie
* @private
*/
function getFormKeyCookie() {
var cookie,
i,
nameEQ = 'form_key=',
cookieArr = document.cookie.split(';');
for (i = 0; i < cookieArr.length; i++) {
cookie = cookieArr[i];
while (cookie.charAt(0) === ' ') {
cookie = cookie.substring(1, cookie.length);
}
if (cookie.indexOf(nameEQ) === 0) {
return cookie.substring(nameEQ.length, cookie.length);
}
}
return null;
}
/**
* Get form key from UI input hidden
* @private
*/
function getFormKeyFromUI() {
return document.querySelector(inputSelector).value;
}
/**
* Generate form key string
* @private
*/
function generateFormKeyString() {
var result = '',
length = 16,
chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
while (length--) {
result += chars[Math.round(Math.random() * (chars.length - 1))];
}
return result;
}
/**
* Init form_key inputs with value
* @private
*/
function initFormKey() {
formKey = getFormKeyCookie();
if (settings && settings.isPaginationCacheEnabled && !formKey) {
formKey = getFormKeyFromUI();
setFormKeyCookie(formKey);
}
if (!formKey) {
formKey = generateFormKeyString();
setFormKeyCookie(formKey);
}
inputElements = document.querySelectorAll(inputSelector);
if (inputElements.length) {
Array.prototype.forEach.call(inputElements, function (element) {
element.setAttribute('value', formKey);
});
}
}
initFormKey();
};
});