internal string ComputeThrottleKey(RequestIdentity requestIdentity, RateLimitPeriod period)
{
var keyValues = new List <string>()
{
ThrottleManager.GetThrottleKey()
};
if (Policy.IpThrottling)
{
keyValues.Add(requestIdentity.ClientIp);
}
if (Policy.ClientThrottling)
{
keyValues.Add(requestIdentity.ClientKey);
}
if (Policy.EndpointThrottling)
{
keyValues.Add(requestIdentity.Endpoint);
}
keyValues.Add(period.ToString());
var id = string.Join("_", keyValues);
var idBytes = Encoding.UTF8.GetBytes(id);
var hashBytes = new System.Security.Cryptography.SHA1Managed().ComputeHash(idBytes);
var hex = BitConverter.ToString(hashBytes).Replace("-", string.Empty);
return(hex);
}
internal string ComputeThrottleKey(RequestIdentity requestIdentity, RateLimitPeriod period)
{
using (var ms = new MemoryStream())
using (var sw = new StreamWriter(ms, Encoding.UTF8))
{
sw.Write(ThrottleManager.GetThrottleKey());
if (Policy.IpThrottling)
{
sw.Write(requestIdentity.ClientIp);
}
if (Policy.ClientThrottling)
{
sw.Write(requestIdentity.ClientKey);
}
if (Policy.EndpointThrottling)
{
sw.Write(requestIdentity.Endpoint);
}
sw.Write(period);
sw.Flush();
ms.Position = 0;
using (var algorithm = new SHA1Managed())
{
var hash = algorithm.ComputeHash(ms);
return(Convert.ToBase64String(hash));
}
}
}
