Forminator - CPF/CNJP mask + validate

<?php

// CPF MASK
// Add this class to the CPF field on the form: cpf
add_action('wp_footer', 'wpmudev_custom_cpf_mask', 9999);
function wpmudev_custom_cpf_mask()
{
    global $post;
    if (is_a($post, 'WP_Post') && !has_shortcode($post->post_content, 'forminator_form')) {
        return;
    }
?>
    <script type="text/javascript">
        jQuery(document).ready(function($) {

            function handleCpfChange(event) {
                // Get only the numbers from the data input
                let data = event.target.value.replace(/\D/g, "");
                // Checking data length to define if it is cpf or cnpj
                if (data.length <= 11) {
                    // It's cpf
                    let cpf = "";
                    let parts = Math.ceil(data.length / 3);
                    for (let i = 0; i < parts; i++) {
                        if (i === 3) {
                            cpf += `-${data.substr(i * 3)}`;

                            break;
                        }
                cpf += `${i !== 0 ? "." : ""}${data.substr(i * 3, 3)}`;

                    }
                    // Pass formatting for the data
                    data = cpf;
                }
                // Update state
                setcpfCnpjValue(data);
            };

            function setcpfCnpjValue(value) {
                // Set the value to the input
                cpf_field.val(value);
            }

            const cpf_field = $(".cpf input");

            cpf_field.bind('focusout keyup ', function(event) {
                handleCpfChange(event);
            });

        });
    </script>
<?php

}


###################################

// CNJP MASK
// Add this class to the CNJP field on the form: cnjp
add_action('wp_footer', 'wpmudev_custom_cnpj_mask', 9999);
function wpmudev_custom_cnpj_mask()
{
    global $post;
    if (is_a($post, 'WP_Post') && !has_shortcode($post->post_content, 'forminator_form')) {
        return;
    }
?>
    <script type="text/javascript">
        jQuery(document).ready(function($) {

            function handleCnpjChange(event) {
                // Get only the numbers from the data input
                let data = event.target.value.replace(/\D/g, "");
                // Checking data length to define if it is cpf or cnpj
                if (data.length > 11) {
                    // It's cnpj
                let cnpj = `${data.substr(0, 2)}.${data.substr(2,3)}.${data.substr(5,3)}/`;

                    if (data.length > 12)
                cnpj += `${data.substr(8, 4)}-${data.substr(12, 2)}`;

                    else
                        cnpj += data.substr(8);
                    // Pass formatting for the data
                    data = cnpj;
                }
                // Update state
                setcpfCnpjValue(data);
            };

            function setcpfCnpjValue(value) {
                // Set the value to the input
                cpf_field.val(value);
            }

            const cpf_field = $(".cnpj input");

            cpf_field.bind('focusout keyup ', function(event) {
                handleCnpjChange(event);
            });

        });
    </script>
<?php

}


#################################

// CNJP validation
// replace number 123 with an ID of your form
// replace input-1 with your CNJP field name
// set your custom message in $error_msg


add_filter( 'forminator_custom_form_submit_errors', 'cnjp_form_validation', 99, 3 );
function cnjp_form_validation( $submit_errors, $form_id, $field_data_array ) {


    $my_forms = array( 123 ); // IDs of forms to check; if more than one, separate by comma
    $cnjp_field = 'input-1'; // CNJP field

    $error_msg = 'Invalid CNJP!'; // custom error message

    if ( in_array( $form_id, $my_forms ) ) {

        $cnjp = '';

        foreach( $field_data_array as $arr ) {

            if ( $arr['name'] == $cnjp_field ) $cnjp = $arr['value'];

        }

        // validation

        if ( !cnjp_validate( $cnjp ) ) {
            $submit_errors[][$mail_field] = $error_msg;
        }


    }

    return $submit_errors;
}


function cnjp_validate( $cnjp ) {

   $b = array(6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2);
   $c = preg_replace('/[^\d]/', '', $cnpj);
   if(strlen($c) !== 14)
        return false;

    if(preg_match('/0{14}/', $c))
        return false;

    for ($i = 0, $n = 0; $i < 12; $n += $c[$i] * $b[++$i]);
    if($c[12] != (((($n %= 11)) < 2) ? 0 : 11 - $n))
        return false;

    for ($i = 0, $n = 0; $i <= 12; $n += $c[$i] * $b[$i++]);
    if($c[13] != (((($n %= 11)) < 2) ? 0 : 11 - $n))
        return false;

    return true;
}


###################################

// CPF Validation
// replace 123 with your form ID
// replace input-1 with your CPF field
// set your error message in $error_msg

add_filter( 'forminator_custom_form_submit_errors', 'cpf_form_validation', 99, 3 );
function cpf_form_validation( $submit_errors, $form_id, $field_data_array ) {


    $my_forms = array( 123 ); // IDs of forms to check; if more than one, separate by comma
    $cpf_field = 'input-1'; // CNJP field

    $error_msg = 'Invalid CPF!'; // custom error message

    if ( in_array( $form_id, $my_forms ) ) {

        $cpf = '';

        foreach( $field_data_array as $arr ) {

            if ( $arr['name'] == $cpf_field ) $cpf = $arr['value'];

        }

        // validation

        if ( !cpf_validate( $cpf ) ) {
            $submit_errors[][$mail_field] = $error_msg;
        }


    }

    return $submit_errors;
}



function cpf_validate( $cpf ) {

    // Extracts only the numbers
    $cpf = preg_replace( '/[^0-9]/is', '', $cpf );

    // Checks if all digits were entered correctly
    if (strlen($cpf) != 11) {
        return false;
    }

    // Checks whether a sequence of repeated digits was entered. Ex: 111.111.111-11
    if (preg_match('/(\d)\1{10}/', $cpf)) {
        return false;
    }

    // Perform the calculation to validate the CPF
    for ($t = 9; $t < 11; $t++) {
        for ($d = 0, $c = 0; $c < $t; $c++) {
            $d += $cpf[$c] * (($t + 1) - $c);
        }
        $d = ((10 * $d) % 11) % 10;
        if ($cpf[$c] != $d) {
            return false;
        }
    }

    return true;
}