/**
* Helper function to perform necessary checks on timestamp and nonce.
*
* @param $nonce
* @param $timestamp
* @param ConsumerInterface $consumer
* @return bool
*/
public function checkNonceAndTimestampUnicity($nonce, $timestamp, ConsumerInterface $consumer)
{
// Check timestamp: The timestamp value MUST be a positive integer
// and MUST be equal or greater than the timestamp used in previous requests.
// @see http://oauth.net/core/1.0/#nonce
if (!ctype_digit($timestamp)) {
throw new \InvalidArgumentException('Timestamp should be a positive integer, got ' . $this->checkPlain($timestamp));
}
$timestampsKey = $this->timestampsKey($consumer);
$sortedSet = $this->client->zrevrange($timestampsKey, 0, -1);
if (is_array($sortedSet) && !empty($sortedSet)) {
$maxTimestamp = $sortedSet[0];
if ($timestamp < $maxTimestamp) {
throw new \InvalidArgumentException('Timestamp must be bigger than your last timestamp we have recorded');
}
}
$noncesRedisKey = $this->noncesRedisKey($consumer, $timestamp);
$exists = $this->client->sismember($noncesRedisKey, $nonce);
return !$exists;
}
/**
* {@inheritDoc}
*/
public function sismember($key, $member)
{
return $this->predis->sismember($key, $member);
}