https://kratomspot.com/wp-content/plugins/google-captcha-v3-for-woocommerce/assets/js/frontend.js?ver=1.0.0

1/**
2 * Google reCAPTCHA v3 for WooCommerce — front-end token handling.
3 *
4 * Keeps a fresh token in every protected form's hidden field. reCAPTCHA v3
5 * tokens are valid for 2 minutes, so we mint on load, refresh on an interval,
6 * on window focus, and whenever WooCommerce rebuilds the checkout via AJAX.
7 *
8 * @package CZG_Recaptcha_WC
9 */
10( function () {
11	'use strict';
12
13	var cfg = window.czgRecaptchaWC || {};
14
15	if ( ! cfg.siteKey ) {
16		return;
17	}
18
19	var FIELD_NAME     = cfg.fieldName || 'czg_recaptcha_token';
20	var DEFAULT_ACTION = cfg.defaultAction || 'submit';
21	var REFRESH_MS     = parseInt( cfg.refresh, 10 ) || 90000;
22
23	/**
24	 * Runs a callback once the grecaptcha API is fully ready.
25	 *
26	 * @param {Function} cb Callback.
27	 */
28	function whenReady( cb ) {
29		if ( window.grecaptcha && typeof window.grecaptcha.execute === 'function' && typeof window.grecaptcha.ready === 'function' ) {
30			window.grecaptcha.ready( cb );
31		} else {
32			window.setTimeout( function () {
33				whenReady( cb );
34			}, 250 );
35		}
36	}
37
38	/**
39	 * Requests a token for an action and hands it to the callback.
40	 *
41	 * @param {string}   action Action name.
42	 * @param {Function} cb     Receives the token string.
43	 */
44	function mintToken( action, cb ) {
45		whenReady( function () {
46			try {
47				window.grecaptcha.execute( cfg.siteKey, { action: action } ).then(
48					function ( token ) {
49						if ( token ) {
50							cb( token );
51						}
52					},
53					function () { /* swallow — a failed mint just leaves the old token */ }
54				);
55			} catch ( e ) { /* grecaptcha not ready yet; the interval will retry */ }
56		} );
57	}
58
59	/**
60	 * Returns all hidden token fields currently in the DOM.
61	 *
62	 * @return {NodeList}
63	 */
64	function tokenFields() {
65		return document.querySelectorAll( 'input[name="' + FIELD_NAME + '"]' );
66	}
67
68	/**
69	 * Refreshes every token field with a freshly minted token.
70	 */
71	function refreshAll() {
72		var fields = tokenFields();
73
74		for ( var i = 0; i < fields.length; i++ ) {
75			( function ( field ) {
76				var action = field.getAttribute( 'data-action' ) || DEFAULT_ACTION;
77				mintToken( action, function ( token ) {
78					field.value = token;
79				} );
80			} )( fields[ i ] );
81		}
82	}
83
84	/**
85	 * Boots the token lifecycle.
86	 */
87	function init() {
88		refreshAll();
89
90		// Keep tokens fresh well within their 2-minute lifetime.
91		window.setInterval( refreshAll, REFRESH_MS );
92
93		// A backgrounded tab throttles timers; top up when the user returns.
94		window.addEventListener( 'focus', refreshAll );
95		document.addEventListener( 'visibilitychange', function () {
96			if ( ! document.hidden ) {
97				refreshAll();
98			}
99		} );
100	}
101
102	if ( 'loading' !== document.readyState ) {
103		init();
104	} else {
105		document.addEventListener( 'DOMContentLoaded', init );
106	}
107
108	// WooCommerce rebuilds the checkout review over AJAX; re-mint afterwards so
109	// any token field that lives inside the refreshed markup stays valid.
110	if ( window.jQuery ) {
111		window.jQuery( document.body ).on( 'updated_checkout payment_method_selected', refreshAll );
112	}
113} )();