افزودن گوگل reCAPTCHA به فرم لاگین ادمین وردپرس

				
					function my_recaptcha_key() {
    $sitekey = "YOUR_SITE_KEY";
    $secretkey = "YOUR_SECRET_KEY";
    return explode(",", $sitekey . "," . $secretkey);
}

/* DON'T FORGET TO INSERT YOUR SITE KEY AND YOUR SECRET KEY IN THE ABOVE LINES! */

/*
 * Add reCaptcha on WordPress Admin Login Page Without Plugin
 */
function login_style() {
    // Check if the current page is wp-login.php
    if (basename($_SERVER['PHP_SELF']) === 'wp-login.php') {
        wp_register_script('login-recaptcha', 'https://www.google.com/recaptcha/api.js', false, NULL);
        wp_enqueue_script('login-recaptcha');
    }
}
add_action('login_enqueue_scripts', 'login_style');

function add_recaptcha_on_login_page() {
    // Check if the current page is wp-login.php
    if (basename($_SERVER['PHP_SELF']) === 'wp-login.php') {
        echo '<div class="g-recaptcha brochure__form__captcha" data-sitekey="' . my_recaptcha_key()[0] . '"></div>';
    }
}
add_action('login_form', 'add_recaptcha_on_login_page');

function captcha_login_check($user, $password) {
    // Check if the current page is wp-login.php
    if (basename($_SERVER['PHP_SELF']) === 'wp-login.php') {
        if (!empty($_POST['g-recaptcha-response'])) {
            $secret = my_recaptcha_key()[1];
            $ip = $_SERVER['REMOTE_ADDR'];
            $captcha = $_POST['g-recaptcha-response'];
            $rsp = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret=' . $secret . '&response=' . $captcha . '&remoteip=' . $ip);
            $valid = json_decode($rsp, true);
            if ($valid["success"] == true) {
                return $user;
            } else {
                return new WP_Error('Captcha Invalid', __('<center>Captcha Invalid! Please check the captcha!</center>'));
            }
        } else {
            return new WP_Error('Captcha Invalid', __('<center>Captcha Invalid! Please check the captcha!</center>'));
        }
    } else {
        return $user;
    }
}
add_action('wp_authenticate_user', 'captcha_login_check', 10, 2);