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Code Issues Releases Wiki Activity

kick clients with default name or an inuse name

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fixed regular expression not being escaped when matching names
fixed reset stats
fixed duplicate kills
This commit is contained in:
RaidMax
2018-02-26 22:24:19 -06:00
parent 0496aa7f21
commit 2a6878351b
14 changed files with 190 additions and 76 deletions
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91
Plugins/SimpleStats/Cheat/Detection.cs Normal file
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using SharedLibrary.Interfaces;
using StatsPlugin.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace StatsPlugin.Cheat
{
class Detection
{
int Kills;
int AboveThresholdCount;
double AverageKillTime;
Dictionary<IW4Info.HitLocation, int> HitLocationCount;
DateTime LastKill;
ILogger Log;
public Detection(ILogger log)
{
Log = log;
HitLocationCount = new Dictionary<IW4Info.HitLocation, int>();
foreach (var loc in Enum.GetValues(typeof(IW4Info.HitLocation)))
HitLocationCount.Add((IW4Info.HitLocation)loc, 0);
LastKill = DateTime.UtcNow;
}
/// <summary>
/// Analyze kill and see if performed by a cheater
/// </summary>
/// <param name="kill">kill performed by the player</param>
/// <returns>true if detection reached thresholds, false otherwise</returns>
public bool ProcessKill(EFClientKill kill)
{
if (kill.DeathType != IW4Info.MeansOfDeath.MOD_PISTOL_BULLET && kill.DeathType != IW4Info.MeansOfDeath.MOD_RIFLE_BULLET)
return false;
bool thresholdReached = false;
HitLocationCount[kill.HitLoc]++;
Kills++;
AverageKillTime = (AverageKillTime + (DateTime.UtcNow - LastKill).TotalSeconds) / Kills;
if (Kills > Thresholds.LowSampleMinKills)
{
double marginOfError = Thresholds.GetMarginOfError(Kills);
// determine what the max headshot percentage can be for current number of kills
double lerpAmount = Math.Min(1.0, (Kills - Thresholds.LowSampleMinKills) / (double)(Thresholds.HighSampleMinKills - Thresholds.LowSampleMinKills));
double maxHeadshotLerpValue = Thresholds.Lerp( Thresholds.HeadshotRatioThresholdLowSample, Thresholds.HeadshotRatioThresholdHighSample, lerpAmount);
// determine what the max bone percentage can be for current number of kills
double maxBoneRatioLerpValue = Thresholds.Lerp(Thresholds.BoneRatioThresholdLowSample, Thresholds.BoneRatioThresholdHighSample, lerpAmount);
// calculate headshot ratio
double headshotRatio = ((HitLocationCount[IW4Info.HitLocation.head] + HitLocationCount[IW4Info.HitLocation.helmet]) / (double)Kills) - marginOfError;
// calculate maximum bone
double maximumBoneRatio = (HitLocationCount.Values.Select(v => v / (double)Kills).Max()) - marginOfError;
if (headshotRatio > maxHeadshotLerpValue)
{
AboveThresholdCount++;
Log.WriteDebug("**Maximum Headshot Ratio Reached**");
Log.WriteDebug($"ClientId: {kill.AttackerId}");
Log.WriteDebug($"**Kills: {Kills}");
Log.WriteDebug($"**Ratio {headshotRatio}");
Log.WriteDebug($"**MaxRatio {maxHeadshotLerpValue}");
var sb = new StringBuilder();
foreach (var kvp in HitLocationCount)
sb.Append($"HitLocation: {kvp.Key} Count: {kvp.Value}");
Log.WriteDebug(sb.ToString());
Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
thresholdReached = true;
}
else if (maximumBoneRatio > maxBoneRatioLerpValue)
{
Log.WriteDebug("**Maximum Bone Ratio Reached**");
Log.WriteDebug($"ClientId: {kill.AttackerId}");
Log.WriteDebug($"**Kills: {Kills}");
Log.WriteDebug($"**Ratio {maximumBoneRatio}");
Log.WriteDebug($"**MaxRatio {maxBoneRatioLerpValue}");
var sb = new StringBuilder();
foreach (var kvp in HitLocationCount)
sb.Append($"HitLocation: {kvp.Key} Count: {kvp.Value}");
Log.WriteDebug(sb.ToString());
thresholdReached = true;
}
}
return thresholdReached;
}
}
}

37
Plugins/SimpleStats/Cheat/Thresholds.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace StatsPlugin.Cheat
{
class Thresholds
{
private const double Deviations = 3.33;
public const double HeadshotRatioThresholdLowSample = HeadshotRatioStandardDeviationLowSample * Deviations + HeadshotRatioMean;
public const double HeadshotRatioThresholdHighSample = HeadshotRatioStandardDeviationHighSample * Deviations + HeadshotRatioMean;
public const double HeadshotRatioStandardDeviationLowSample = 0.1769994181;
public const double HeadshotRatioStandardDeviationHighSample = 0.03924263235;
//public const double HeadshotRatioMean = 0.09587712258;
public const double HeadshotRatioMean = 0.222;
public const double BoneRatioThresholdLowSample = BoneRatioStandardDeviationLowSample * Deviations + BoneRatioMean;
public const double BoneRatioThresholdHighSample = BoneRatioStandardDeviationHighSample * Deviations + BoneRatioMean;
public const double BoneRatioStandardDeviationLowSample = 0.1324612879;
public const double BoneRatioStandardDeviationHighSample = 0.0515753935;
public const double BoneRatioMean = 0.3982907516;
public const int LowSampleMinKills = 15;
public const int HighSampleMinKills = 100;
public const double KillTimeThreshold = 0.2;
public static double GetMarginOfError(int numKills) => 1.645 /(2 * Math.Sqrt(numKills));
public static double Lerp(double v1, double v2, double amount)
{
return v1 + (v2 - v1) * amount;
}
}
}