/**
* Calculates signature for any data given as an array of strings.
*
* @param string[] $data
* @param CredentialsInterface $credentials private key is needed to calculate signature
* @param AlgorithmInterface $algorithm calculator uses encoder which can use multiple algorithms
*
* @return string
* @throws SignatureCalculatorException
*/
public function calculate(array $data, CredentialsInterface $credentials, AlgorithmInterface $algorithm)
{
$concatenated = '';
array_walk_recursive($data, function ($value) use(&$concatenated) {
$concatenated .= $value;
});
$concatenated .= $credentials->getPrivateKey();
return $this->encode($concatenated, $algorithm);
}
/**
* @param CredentialsInterface $credentials
*
* @return array
*/
private function getOptions(CredentialsInterface $credentials)
{
return [CURLOPT_HTTPAUTH => CURLAUTH_BASIC, CURLOPT_USERPWD => sprintf('%s:%s', $credentials->getMerchantPosId(), $credentials->getMerchantPosId()), CURLOPT_SSLVERSION => 1, CURLOPT_SSL_CIPHER_LIST => $credentials->getEncryptionProtocols(), CURLOPT_SSL_VERIFYHOST => 2, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_ENCODING => 'gzip', CURLOPT_FOLLOWLOCATION => false];
}