/**
* Singleton pattern: US_Migration::instance()->do_something()
*
* @return US_Migration
*/
public static function instance()
{
if (!isset(self::$instance)) {
self::$instance = new US_Migration();
}
return self::$instance;
}
<?php
defined('ABSPATH') or die('This script cannot be accessed directly.');
/**
* Certain theme's migration profile
*/
add_filter('us_config_migrations', 'us_config_migrations');
function us_config_migrations($migrations)
{
return array('2.0' => 'functions/migrations/us_migration_2_0.php', '2.1' => 'functions/migrations/us_migration_2_1.php');
}
require $us_template_directory . '/framework/functions/migration.php';
US_Migration::instance();
function us_ajax_cform()
{
$post_id = isset($_POST['post_id']) ? intval($_POST['post_id']) : 0;
if ($post_id <= 0) {
wp_send_json_error();
}
$post = get_post($post_id);
if (empty($post)) {
wp_send_json_error();
}
$form_index = isset($_POST['form_index']) ? intval($_POST['form_index']) : 1;
// Retrieving the relevant shortcode from the page to get options
$post_content = $post->post_content;
preg_match_all('~\\[(vc_contact_form|us_cform)(.*?)\\]~', $post_content, $matches);
if (!isset($matches[0][$form_index - 1])) {
wp_send_json_error();
}
// Getting the relevant shortcode options
$shortcode = $matches[0][$form_index - 1];
// For proper shortcode_parse_atts behaviour
$shortcode = substr_replace($shortcode, ' ]', -1);
$shortcode_name = $matches[1][$form_index - 1];
$shortcode_atts = shortcode_parse_atts($shortcode);
// Compatibility with older versions (applying migrations)
if (class_exists('US_Migration')) {
$method_name = 'translate_' . $shortcode_name;
foreach (US_Migration::instance()->translators as $version => $translator) {
if (method_exists($translator, $method_name)) {
$translator->{$method_name}($shortcode_name, $shortcode_atts);
}
}
}
$shortcode_atts = shortcode_atts(array('receiver_email' => '', 'name_field' => 'required', 'email_field' => 'required', 'phone_field' => 'required', 'message_field' => 'required', 'captcha_field' => 'hidden'), $shortcode_atts);
// Validating fields
$errors = array();
$fields = us_config('cform.fields');
foreach ($fields as $field_name => $field) {
if (!isset($shortcode_atts[$field_name . '_field']) or $shortcode_atts[$field_name . '_field'] != 'required') {
continue;
}
if ($field['type'] == 'captcha') {
$captcha = isset($_POST['captcha']) ? stripslashes($_POST['captcha']) : NULL;
$captcha_hash = isset($_POST['captcha_hash']) ? stripslashes($_POST['captcha_hash']) : NULL;
$is_valid = $captcha_hash === md5($captcha . NONCE_SALT);
} elseif ($field['type'] == 'email') {
$is_valid = (isset($_POST[$field_name]) and filter_var($_POST[$field_name], FILTER_VALIDATE_EMAIL));
} else {
$is_valid = (isset($_POST[$field_name]) and !empty($_POST[$field_name]));
}
if (!$is_valid) {
$errors[$field_name] = $field['error'];
}
}
if (!empty($errors)) {
wp_send_json_error($errors);
}
$email_to = get_option('admin_email');
if (!empty($shortcode_atts['receiver_email'])) {
$email_to = array_map('sanitize_email', explode(',', $shortcode_atts['receiver_email']));
}
$email_body = '';
foreach ($fields as $field_name => $field) {
// The field is not used by shortcode
if (!isset($shortcode_atts[$field_name . '_field']) or $shortcode_atts[$field_name . '_field'] == 'hidden') {
continue;
}
// User didn't fill the field
if (!isset($_POST[$field_name]) or empty($_POST[$field_name])) {
continue;
}
if ($field['type'] == 'captcha') {
continue;
} elseif ($field['type'] == 'email') {
$value = sanitize_email(stripslashes($_POST[$field_name]));
} else {
$value = sanitize_text_field(stripslashes($_POST[$field_name]));
}
$email_body .= $field['title'] . ': ' . $value . "\n";
}
$email_subject = sprintf(us_config('cform.subject'), get_bloginfo('name'));
if (empty($email_body)) {
wp_send_json_error(us_config('cform.error.empty_message'));
}
// Send attempt
$success = wp_mail($email_to, $email_subject, $email_body);
if ($success) {
wp_send_json_success(us_config('cform.success'));
} else {
wp_send_json_error(us_config('cform.error.other'));
}
}