$params = self::_underscoreKeys($params);
$now = new DateTime('now', new DateTimeZone('UTC'));
$trDataParams = array_merge($params, array('api_version' => Braintree_Configuration::API_VERSION, 'public_key' => Braintree_Configuration::publicKey(), 'time' => $now->format('YmdHis')));
ksort($trDataParams);
$trDataSegment = http_build_query($trDataParams, null, '&');
$trDataHash = self::_hash($trDataSegment);
return "{$trDataHash}|{$trDataSegment}";
}
private static function _underscoreKeys($array)
{
foreach ($array as $key => $value) {
$newKey = Braintree_Util::camelCaseToDelimiter($key, '_');
unset($array[$key]);
if (is_array($value)) {
$array[$newKey] = self::_underscoreKeys($value);
} else {
$array[$newKey] = $value;
}
}
return $array;
}
/**
* @ignore
*/
private static function _hash($string)
{
return Braintree_Digest::hexDigest($string);
}
}
Braintree_TransparentRedirect::init();
