43 lines
1.2 KiB
C#
43 lines
1.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace SharpChat {
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public enum ChatRateLimitState {
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None,
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Warning,
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Kick,
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}
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public class ChatRateLimiter {
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private const int FLOOD_PROTECTION_AMOUNT = 30;
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private const int FLOOD_PROTECTION_THRESHOLD = 10;
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private readonly Queue<DateTimeOffset> TimePoints = new();
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public ChatRateLimitState State {
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get {
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if(TimePoints.Count == FLOOD_PROTECTION_AMOUNT) {
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if((TimePoints.Last() - TimePoints.First()).TotalSeconds <= FLOOD_PROTECTION_THRESHOLD)
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return ChatRateLimitState.Kick;
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if((TimePoints.Last() - TimePoints.Skip(5).First()).TotalSeconds <= FLOOD_PROTECTION_THRESHOLD)
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return ChatRateLimitState.Warning;
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}
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return ChatRateLimitState.None;
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}
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}
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public void AddTimePoint(DateTimeOffset? dto = null) {
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if(!dto.HasValue)
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dto = DateTimeOffset.Now;
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if(TimePoints.Count >= FLOOD_PROTECTION_AMOUNT)
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TimePoints.Dequeue();
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TimePoints.Enqueue(dto.Value);
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}
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}
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}
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