protected function parse(RequestInterface $request)
{
// load the raw login credentials
$rawAuthData = $request->getHeader(Protocol::HEADER_AUTHORIZATION);
// init data and matches arrays
$data = array();
$matches = array();
// define required data
$requiredData = array('realm' => 1, 'nonce' => 1, 'nc' => 1, 'cnonce' => 1, 'qop' => 1, 'username' => 1, 'uri' => 1, 'response' => 1);
// prepare key for parsing logic
$key = implode('|', array_keys($requiredData));
// parse header value
preg_match_all('@(' . $key . ')=(?:([\'"])([^\\2]+?)\\2|([^\\s,]+))@', $rawAuthData, $matches, PREG_SET_ORDER);
// iterate all found values for header value
foreach ($matches as $match) {
// check if match could be found
if ($match[3]) {
$data[$match[1]] = $match[3];
} else {
$data[$match[1]] = $match[4];
}
// unset required value because we got it processed
unset($requiredData[$match[1]]);
}
// set if all required data was processed
$data['method'] = $this->getRequestMethod();
$this->authData = $requiredData ? false : $data;
}
