/**
* Kontrola parametru predavanych ve zpetnem volani po vytvoreni uzivatele - verifikace podpisu.
*
* @param mixed $create_result - vysledek volani createBuyer
* @param float $goId - identifikace uzivatele - GoId uzivatele pridelene GoPay
* @param string $buyerUsername - uzivatelske jmeno uzivatele
* @param string $buyerEmail - email uzivatele
* @param string $secret - kryptovaci heslo pridelene uzivateli, urcene k podepisovani komunikace
*
* @return true
* @return false
*/
public static function checkCreateBuyerResult($create_result, $goId, $buyerUsername, $buyerEmail, $secret)
{
$valid = true;
if ($create_result) {
if ($create_result->buyerGoId == "") {
$valid = false;
// echo "PS invalid buyerGoId<br>";
}
if ($create_result->buyerUsername == "") {
$valid = false;
// echo "PS invalid buyerUsername<br>";
}
if ($create_result->result != 'CALL_COMPLETED') {
$valid = false;
// echo "PS invalid call state state<br>";
}
if ($create_result->resultDescription != 'BUYER_CREATED') {
$valid = false;
// echo "PS invalid call state description<br>";
}
if ($valid) {
$hashedSignature = GopayHelper::hash(GopayHelper::concatBuyer((double) $goId, $buyerUsername, $buyerEmail, $secret));
$decryptedHash = GopayHelper::decrypt($create_result->encryptedSignature, $secret);
if ($decryptedHash != $hashedSignature) {
$valid = false;
// echo "PS invalid signature <br>";
}
}
} else {
$valid = false;
// echo "No create result <br>";
}
return $valid;
}
