/**
* Calculate the signature using MD5
* Binary md5 digest, as distinct from PHP's built-in hexdigest.
* This function is copyright Andy Smith, 2007.
*
* @param OAuthRequest request
* @param string base_string
* @param string consumer_secret
* @param string token_secret
* @return string
*/
function signature(IOauthSignable $reponse, Secrets $secrets, $data = null)
{
//$s .= '&'.$reponse->oauthurlencode($secrets->consumer_secret).'&'.$reponse->oauthurlencode($secrets->token_secret); To nedava smysl a navic to hazi chybu
$md5 = md5($data !== null ? $data : $reponse->getSignatureBaseString());
$bin = '';
for ($i = 0; $i < strlen($md5); $i += 2) {
$bin .= chr(hexdec($md5[$i + 1]) + hexdec($md5[$i]) * 16);
}
return $reponse->oauthurlencode(base64_encode($bin));
}
/**
* Calculate the signature using HMAC-SHA1
* This function is copyright Andy Smith, 2007.
*
* @param OAuthRequest request
* @param string base_string
* @param string consumer_secret
* @param string token_secret
* @return string
*/
function signature(IOauthSignable $response, Secrets $secrets, $data = null)
{
$key = $response->oauthurlencode($secrets->consumer_secret) . '&' . $response->oauthurlencode($secrets->token_secret);
if (function_exists('hash_hmac')) {
$signature = base64_encode(hash_hmac("sha1", $data !== null ? $data : $response->getSignatureBaseString(), $key, true));
} else {
$blocksize = 64;
$hashfunc = 'sha1';
if (strlen($key) > $blocksize) {
$key = pack('H*', $hashfunc($key));
}
$key = str_pad($key, $blocksize, chr(0x0));
$ipad = str_repeat(chr(0x36), $blocksize);
$opad = str_repeat(chr(0x5c), $blocksize);
$hmac = pack('H*', $hashfunc(($key ^ $opad) . pack('H*', $hashfunc(($key ^ $ipad) . $response->getSignatureBaseString()))));
$signature = base64_encode($hmac);
}
return $response->oauthurlencode($signature);
}
