/**
* Gets value of the field from $_REQUEST or $_SESSION (is some REQUEST values
* needs to be stored by scenario). Also it takes values from $_GET or $_POST
* separately if second parameter is passed.
*
* @param mixed $fieldName String name of the field or complex hierarchy name.
* @param string $source Http::GET or Http::POST constant.
*
* @return mixed Value of the field, NULL otherwise.
*/
public static function getFieldValue($fieldName, $source = null)
{
$value = null;
try {
switch ($source) {
case Http::GET:
$value = Naming::getValueByComplexName($_GET, $fieldName);
break;
case Http::POST:
$value = Naming::getValueByComplexName($_POST, $fieldName);
break;
default:
$value = Naming::getValueByComplexName($_REQUEST, $fieldName);
}
} catch (\Exception $ex) {
try {
if (Session::exists('_post')) {
$value = Naming::getValueByComplexName(Session::get('_post'), $fieldName);
}
} catch (\Exception $ex) {
return null;
}
}
if (!is_null($value)) {
if (is_array($value)) {
return $value;
} elseif (is_int($value)) {
return intval($value);
}
return $value;
}
return null;
}
/**
* Validate if captcha code is correct.
*
* @param string $fieldName Name of the captcha field.
*
* @return bool
*/
public static function validateCaptcha($fieldName)
{
if (!validateNotEmpty($fieldName)) {
return false;
}
if (!validateNoSpaces($fieldName)) {
return false;
}
if (Request::getFieldValue($fieldName) != Session::get($fieldName)) {
Errors::saveErrorFor($fieldName, \__ERRORS::INVALID_CAPTCHA_CODE);
return false;
}
return true;
}