/home/desid573/public_html/family/pdd/app/Vendor/Services/Twilio
Edit: /home/desid573/public_html/family/pdd/app/Vendor/Services/Twilio/RequestValidator.php (1714B)
AuthToken = $token;
}
public function computeSignature($url, $data = array())
{
// sort the array by keys
ksort($data);
// append them to the data string in order
// with no delimiters
foreach($data as $key => $value)
$url .= "$key$value";
// This function calculates the HMAC hash of the data with the key
// passed in
// Note: hash_hmac requires PHP 5 >= 5.1.2 or PECL hash:1.1-1.5
// Or http://pear.php.net/package/Crypt_HMAC/
return base64_encode(hash_hmac("sha1", $url, $this->AuthToken, true));
}
public function validate($expectedSignature, $url, $data = array())
{
return self::compare(
$this->computeSignature($url, $data),
$expectedSignature
);
}
/**
* Time insensitive compare, function's runtime is governed by the length
* of the first argument, not the difference between the arguments.
* @param $a string First part of the comparison pair
* @param $b string Second part of the comparison pair
* @return bool True if $a == $b, false otherwise.
*/
public static function compare($a, $b) {
$result = true;
if (strlen($a) != strlen($b)) {
return false;
}
if (!$a && !$b) {
return true;
}
$limit = strlen($a);
for ($i = 0; $i < $limit; ++$i) {
if ($a[$i] != $b[$i]) {
$result = false;
}
}
return $result;
}
}