/**
* Change level flags
*
* @param string $list
* @param bool $state
*/
private function _changeLevelFlags($list, $state)
{
$flags = Steelcode_String_Helper::explode(',', $list);
foreach ($flags as $flag) {
$this->_levelFlags[trim($flag)] = $state;
}
}
/**
* Decode the token
*
* @param string $token
* @return true
*/
protected function _decode($token)
{
$segments64 = Steelcode_String_Helper::explode('.', $token);
if (count($segments64) !== 3) {
$this->_setMessage('Wrong number of segments. Token is not a valid JSON web token');
return false;
}
$segments = $segments64;
foreach ($segments as $index => $value) {
$segments[$index] = $this->urlSafeB64Decode($value);
if ($index < 2) {
$segments[$index] = Steelcode_Json_Helper::decode($segments[$index]);
}
}
if (empty($segments[0])) {
$this->_setMessage('Invalid header encoding');
return false;
}
if (empty($segments[1])) {
$this->_setMessage('Invalid claims encoding');
return false;
}
if (empty($segments[0]->alg) || !isset($this->_methods[$segments[0]->alg])) {
$this->_setMessage('Invalid or unsupported algorithm');
return false;
}
$this->_algorithm = $segments[0]->alg;
if (!$this->_verify("{$segments64[0]}.{$segments64[1]}", $segments[2], $this->_key, $this->_algorithm)) {
$this->_setMessage('Signature verification failed');
return false;
}
if (isset($segments[1]->nbf) && $segments[1]->nbf > Steelcode_Date_Helper::time() + $this->_leeway) {
$this->_setMessage('Cannot handle this token before ' . Steelcode_Date_Helper::date(DateTime::ISO8601, $segments[1]->nbf));
return false;
}
if (isset($segments[1]->iat) && $segments[1]->iat > Steelcode_Date_Helper::time() + $this->_leeway) {
$this->_setMessage('Cannot handle token prior to ' . Steelcode_Date_Helper::date(DateTime::ISO8601, $segments[1]->iat));
return false;
}
if (isset($segments[1]->exp) && Steelcode_Date_Helper::time() - $this->_leeway >= $segments[1]->exp) {
$this->_setMessage('Token expired');
return false;
}
$this->_header = (array) $segments[0];
$this->_payload = (array) $segments[1];
$this->_signature = $segments[2];
return true;
}
/**
* Check date of format yyyy-mm-dd is valid
*
* @param string $date
* @return bool
*/
public static function isValidDate($date)
{
if (empty($date)) {
return false;
}
$segments = Steelcode_String_Helper::explode('-', $date);
if (count($segments) != 3) {
return false;
}
return checkdate($segments[1], $segments[2], $segments[0]);
}
/**
* Extract controller and domain paths from request
*
* @param string $requestPath
*/
private function _extractPath($requestPath)
{
$lastChar = substr($requestPath, -1);
if ($lastChar == '/') {
$this->_config->setDomain(trim($requestPath, '/'));
$this->_config->setController('index');
return;
}
$arrayReq = Steelcode_String_Helper::explode('/', $requestPath);
if ($arrayReq[0] == '') {
unset($arrayReq[0]);
}
$arrayLen = count($arrayReq);
if ($arrayLen === 1) {
$this->_config->setDomain('index');
$this->_config->setController($arrayReq[1]);
} elseif ($arrayLen > 1) {
$this->_config->setDomain($arrayReq[1]);
$this->_config->setController($arrayReq[2]);
if ($arrayLen > 2) {
unset($arrayReq[1], $arrayReq[2]);
$this->_setUriAttributes($arrayReq);
}
} else {
$this->_config->defaults();
}
}