public bool Validate(IClientRequest request, IRateLimiterManager rate_limiter)
{
try
{
if (RulesSettings.MaxRequestsLimit == -1)
{
return(true); // settings are not initiated == no limit.
}
if (rate_limiter.RequestsLog.Count(l => l.Token.Equals(request.Token) &&
l.CallDateTimeStamp >= DateTime.Now - RulesSettings.TimeSpanLimit) > RulesSettings.MaxRequestsLimit)
{
return(false);
}
return(true);
}
catch (Exception ex)
{
return(false);
// Log/Manage exception
}
}
// per specification: allow request only if a certain timespan passed since the last call per user (token)
public bool Validate(IClientRequest request, IRateLimiterManager rate_limiter)
{
try
{
if (RulesSettings.TimeSpanLimit.Equals(new TimeSpan(0, 0, 0, 0, 0))) // setting is not enabled
{
return(true);
}
DateTime lastcall = rate_limiter.RequestsLog.Where(l => l.Token.Equals(request.Token)).Max(l => l.CallDateTimeStamp);
if (lastcall != null &&
lastcall > DateTime.Now - RulesSettings.TimeSpanLimit)
{
return(false);
}
return(true);
}
catch (Exception ex)
{
return(false);
// Log/Manage exception
}
}
public Controller(IRateLimiterManager rate_limiter_service)
{
_rate_limiter_service = rate_limiter_service;
}
public bool Validate(IClientRequest request, IRateLimiterManager rate_limiter)
{
return(request.GeoLocation == GeoLocation.US ?
new RequestsPerTimespanLimit().Validate(request, rate_limiter) :
new TimespanSinceLastCallLimit().Validate(request, rate_limiter));
}
