public DosAttackEntry Clone()
{
var result = new DosAttackEntry
{
IsBanned = this.IsBanned,
IsRemoveCandidate = this.IsRemoveCandidate,
RequestCount = this.RequestCount,
BanDate = this.BanDate,
LastRequestDate = this.LastRequestDate,
LastMinute = this.LastMinute,
LastSecond = this.LastSecond
};
return(result);
}
private DosAttackEntry UpdateEntry(string ip, DosAttackEntry oldentry)
{
var dt = DateTime.Now;
oldentry.LastRequestDate = dt;
if (oldentry.IsBanned)
{
var banSpan = dt - oldentry.BanDate;
if (banSpan.TotalSeconds >= RELEASE_INTERVAL)
{
oldentry.IsBanned = false;
oldentry.RequestCount = 1;
}
}
else
{
var min = dt.Minute;
var sec = dt.Second;
if (oldentry.LastMinute == min && oldentry.LastSecond == sec)
{
oldentry.RequestCount++;
}
else
{
oldentry.RequestCount = 1;
}
if (oldentry.RequestCount >= REQUEST_THRESHOLD)
{
oldentry.BanDate = dt;
oldentry.IsBanned = true;
}
}
return(oldentry);
}
