/**
* Handle process challenge message
*
* @param \Thruway\ClientSession $session
* @param \Thruway\Message\ChallengeMessage $msg
*/
public function processChallenge(ClientSession $session, ChallengeMessage $msg)
{
$authMethod = $msg->getAuthMethod();
// look for authenticator
/** @var ClientAuthenticationInterface $ca */
foreach ($this->clientAuthenticators as $ca) {
if (in_array($authMethod, $ca->getAuthMethods())) {
$authenticateMsg = $ca->getAuthenticateFromChallenge($msg);
$session->sendMessage($authenticateMsg);
return;
}
}
$this->emit('challenge', [$session, $msg]);
}
public function getAuthenticateFromChallenge(ChallengeMessage $msg)
{
echo "Got challenge:\n";
echo $msg->getSerializedMessage();
echo "\n";
if (!in_array($msg->getAuthMethod(), $this->getAuthMethods())) {
//throw new \Exception("method isn't in methods");
return false;
}
if (!is_array($msg->getDetails())) {
echo "No details sent with challenge.\n";
return false;
}
$challenge = '';
if (isset($msg->getDetails()['challenge'])) {
$challenge = $msg->getDetails()['challenge'];
} else {
echo "No challenge for wampcra?\n";
return false;
}
$keyToUse = $this->key;
if (isset($msg->getDetails()['salt'])) {
// we need a salted key
$salt = $msg->getDetails()['salt'];
$keyLen = 32;
if (isset($msg->getDetails()['keylen'])) {
if (is_numeric($msg->getDetails()['keylen'])) {
$keyLen = $msg->getDetails()['keylen'];
} else {
echo "keylen is not numeric.\n";
}
}
$iterations = 1000;
if (isset($msg->getDetails()['iterations'])) {
if (is_numeric($msg->getDetails()['iterations'])) {
$iterations = $msg->getDetails()['iterations'];
} else {
echo "iterations is not numeric.\n";
}
}
$keyToUse = $this->getDerivedKey($this->key, $salt, $iterations, $keyLen);
}
$token = base64_encode(hash_hmac('sha256', $challenge, $keyToUse, true));
$authMessage = new AuthenticateMessage($token);
echo "returning: " . $authMessage->getSerializedMessage() . "\n";
return $authMessage;
}
