$error));
}
function get_form_response($success, $data) {
if (!is_array($data))
die('data must be array');
$status = array();
$status[$success ? 'FormResponse' : 'MusePHPFormResponse'] = array_merge(array('success' => $success), $data);
return json_serialize($status);
}
function check_required_fields($form) {
$errors = array();
foreach ($form['fields'] as $field => $properties) {
if (!$properties['required'])
continue;
if (!array_key_exists($field, $_REQUEST) || empty($_REQUEST[$field]))
array_push($errors, array('field' => $field, 'message' => $properties['errors']['required']));
else if (!check_field_value_format($form, $field, $properties))
array_push($errors, array('field' => $field, 'message' => $properties['errors']['format']));
}
if (!empty($errors))
die(get_form_error_response(array('fields' => $errors)));
}
function check_field_value_format($form, $field, $properties) {
$value = get_form_field_value($field, $properties, $form['resources']);
switch($properties['type']) {
case 'checkbox':
case 'string':
case 'captcha':
// no format to validate for those fields
return true;
case 'recaptcha':
if (!array_key_exists('recaptcha', $form) || !array_key_exists('private_key', $form['recaptcha']) || empty($form['recaptcha']['private_key']))
die(get_form_error_response($form['resources']['invalid_reCAPTCHA_private_key']));
$resp = recaptcha_check_answer($form['recaptcha']['private_key'], $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]);
return $resp->is_valid;
case 'email':
return 1 == preg_match('/^[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i', $value);
default:
die(get_form_error_response(sprintf($form['resources']['invalid_field_type'], $properties['type'])));
}
}
function email_form_submission($form) {
if(!defined('PHP_EOL'))
define('PHP_EOL', '\r\n');
$form_email = ((array_key_exists('Email', $_REQUEST) && !empty($_REQUEST['Email'])) ? cleanup_email($_REQUEST['Email']) : '');
$to = $form['email']['to'];
$subject = $form['subject'];
$message = get_email_body($subject, $form['heading'], $form['fields'], $form['resources']);
$headers = get_email_headers($to, $form_email);
$sent = @mail($to, $subject, $message, $headers);
if(!$sent)
die(get_form_error_response($form['resources']['failed_to_send_email']));
$success_data = array(
'redirect' => $form['success_redirect']
);
echo get_form_response(true, $success_data);
}
function get_email_headers($to_email, $form_email) {
$headers = 'From: ' . $to_email . PHP_EOL;
$headers .= 'Reply-To: ' . $form_email . PHP_EOL;
$headers .= 'X-Mailer: Adobe Muse CC 2014.3.2.295 with PHP' . PHP_EOL;
$headers .= 'Content-type: text/html; charset=utf-8' . PHP_EOL;
return $headers;
}
function get_email_body($subject, $heading, $fields, $resources) {
$message = '';
$message .= '';
$message .= '' . encode_for_form($subject) . '';
$message .= '';
$message .= '' . $heading . '
';
$message .= '';
$sorted_fields = array();
foreach ($fields as $field => $properties) {
// Skip reCAPTCHA from email submission
if ('recaptcha' == $properties['type'])
continue;
array_push($sorted_fields, array('field' => $field, 'properties' => $properties));
}
// sort fields
usort($sorted_fields, 'field_comparer');
foreach ($sorted_fields as $field_wrapper)
$message .= '| ' . encode_for_form($field_wrapper['properties']['label']) . ': | ' . get_form_field_value($field_wrapper['field'], $field_wrapper['properties'], $resources) . ' |
';
$message .= '
';
$message .= '
';
$message .= '' . sprintf($resources['submitted_from'], encode_for_form($_SERVER['SERVER_NAME'])) . '
';
$message .= '' . sprintf($resources['submitted_by'], encode_for_form($_SERVER['REMOTE_ADDR'])) . '
';
$message .= '';
return cleanup_message($message);
}
function field_comparer($field1, $field2) {
if ($field1['properties']['order'] == $field2['properties']['order'])
return 0;
return (($field1['properties']['order'] < $field2['properties']['order']) ? -1 : 1);
}
function is_assoc_array($arr) {
if (!is_array($arr))
return false;
$keys = array_keys($arr);
foreach (array_keys($arr) as $key)
if (is_string($key)) return true;
return false;
}
function json_serialize($data) {
if (is_assoc_array($data)) {
$json = array();
foreach ($data as $key => $value)
array_push($json, '"' . $key . '": ' . json_serialize($value));
return '{' . implode(', ', $json) . '}';
}
if (is_array($data)) {
$json = array();
foreach ($data as $value)
array_push($json, json_serialize($value));
return '[' . implode(', ', $json) . ']';
}
if (is_int($data) || is_float($data))
return $data;
if (is_bool($data))
return $data ? 'true' : 'false';
return '"' . encode_for_json($data) . '"';
}
function encode_for_json($value) {
return preg_replace(array('/([\'"\\t\\\\])/i', '/\\r/i', '/\\n/i'), array('\\\\$1', '\\r', '\\n'), $value);
}
function encode_for_form($text) {
return htmlentities($text, ENT_COMPAT, 'UTF-8');
}
function get_form_field_value($field, $properties, $resources) {
$value = $_REQUEST[$field];
switch($properties['type']) {
case 'checkbox':
return (($value == '1' || $value == 'true') ? $resources['checkbox_checked'] : $resources['checkbox_unchecked']);
case 'string':
case 'captcha':
case 'recaptcha':
case 'email':
return encode_for_form($value);
default:
die(get_form_error_response(sprintf($resources['invalid_field_type'], $properties['type'])));
}
}
function cleanup_email($email) {
$email = encode_for_form($email);
$email = preg_replace('=((||0x0A/%0A|0x0D/%0D|\\n|\\r)\S).*=i', null, $email);
return $email;
}
function cleanup_message($message) {
$message = wordwrap($message, 70, "\r\n");
return $message;
}
?>