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Use game time from log to ignore potential false disconnect lines - Fix for latent linking issues with multiple ips - Anticheat fix for T6 - retry kick on update if they're not allowed to connect

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This commit is contained in:
RaidMax 2020-02-06 18:35:30 -06:00
parent 15e2170100
commit fe380ca331
8 changed files with 120 additions and 53 deletions
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1
.gitignore vendored
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@ -240,3 +240,4 @@ launchSettings.json
/Master/master/persistence
/WebfrontCore/wwwroot/fonts
/WebfrontCore/wwwroot/font
/Plugins/Tests/TestSourceFiles

51
Application/EventParsers/BaseEventParser.cs
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@ -2,6 +2,8 @@
using SharedLibraryCore.Database.Models;
using SharedLibraryCore.Interfaces;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using static SharedLibraryCore.Server;
@ -78,7 +80,18 @@ namespace IW4MAdmin.Application.EventParsers
public virtual GameEvent GenerateGameEvent(string logLine)
{
logLine = Regex.Replace(logLine, @"([0-9]+:[0-9]+ |^[0-9]+ )", "").Trim();
var timeMatch = Regex.Match(logLine, @"^ *(([0-9]+):([0-9]+) |^[0-9]+ )");
int gameTime = 0;
if (timeMatch.Success)
{
gameTime = (timeMatch.Groups.Values as IEnumerable<object>)
.Skip(2)
.Select(_value => int.Parse(_value.ToString()))
.Sum();
logLine = logLine.Substring(timeMatch.Value.Length);
}
string[] lineSplit = logLine.Split(';');
string eventType = lineSplit[0];
@ -107,7 +120,8 @@ namespace IW4MAdmin.Application.EventParsers
Origin = new EFClient() { NetworkId = originId },
Message = message,
Extra = logLine,
RequiredEntity = GameEvent.EventRequiredEntity.Origin
RequiredEntity = GameEvent.EventRequiredEntity.Origin,
GameTime = gameTime
};
}
@ -118,7 +132,8 @@ namespace IW4MAdmin.Application.EventParsers
Origin = new EFClient() { NetworkId = originId },
Message = message,
Extra = logLine,
RequiredEntity = GameEvent.EventRequiredEntity.Origin
RequiredEntity = GameEvent.EventRequiredEntity.Origin,
GameTime = gameTime
};
}
}
@ -139,7 +154,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = new EFClient() { NetworkId = originId },
Target = new EFClient() { NetworkId = targetId },
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target,
GameTime = gameTime
};
}
}
@ -159,7 +175,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = new EFClient() { NetworkId = originId },
Target = new EFClient() { NetworkId = targetId },
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target,
GameTime = gameTime
};
}
}
@ -185,7 +202,8 @@ namespace IW4MAdmin.Application.EventParsers
State = EFClient.ClientState.Connecting,
},
RequiredEntity = GameEvent.EventRequiredEntity.None,
IsBlocking = true
IsBlocking = true,
GameTime = gameTime
};
}
}
@ -210,7 +228,8 @@ namespace IW4MAdmin.Application.EventParsers
State = EFClient.ClientState.Disconnecting
},
RequiredEntity = GameEvent.EventRequiredEntity.None,
IsBlocking = true
IsBlocking = true,
GameTime = gameTime
};
}
}
@ -223,7 +242,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = Utilities.IW4MAdminClient(),
Target = Utilities.IW4MAdminClient(),
RequiredEntity = GameEvent.EventRequiredEntity.None
RequiredEntity = GameEvent.EventRequiredEntity.None,
GameTime = gameTime
};
}
@ -238,7 +258,8 @@ namespace IW4MAdmin.Application.EventParsers
Origin = Utilities.IW4MAdminClient(),
Target = Utilities.IW4MAdminClient(),
Extra = dump.DictionaryFromKeyValue(),
RequiredEntity = GameEvent.EventRequiredEntity.None
RequiredEntity = GameEvent.EventRequiredEntity.None,
GameTime = gameTime
};
}
@ -250,7 +271,8 @@ namespace IW4MAdmin.Application.EventParsers
Type = GameEvent.EventType.JoinTeam,
Data = logLine,
Origin = new EFClient() { NetworkId = lineSplit[1].ConvertGuidToLong(Configuration.GuidNumberStyle) },
RequiredEntity = GameEvent.EventRequiredEntity.Target
RequiredEntity = GameEvent.EventRequiredEntity.Target,
GameTime = gameTime
};
}
@ -267,7 +289,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = new EFClient() { NetworkId = originId },
Target = new EFClient() { NetworkId = targetId },
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target,
GameTime = gameTime
};
}
@ -283,7 +306,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = new EFClient() { NetworkId = originId },
Target = new EFClient() { NetworkId = targetId },
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target
RequiredEntity = GameEvent.EventRequiredEntity.Origin | GameEvent.EventRequiredEntity.Target,
GameTime = gameTime
};
}
@ -293,7 +317,8 @@ namespace IW4MAdmin.Application.EventParsers
Data = logLine,
Origin = Utilities.IW4MAdminClient(),
Target = Utilities.IW4MAdminClient(),
RequiredEntity = GameEvent.EventRequiredEntity.None
RequiredEntity = GameEvent.EventRequiredEntity.None,
GameTime = gameTime
};
}
}

25
Application/IW4MServer.cs
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@ -28,6 +28,7 @@ namespace IW4MAdmin
private readonly ITranslationLookup _translationLookup;
private const int REPORT_FLAG_COUNT = 4;
private readonly IPluginImporter _pluginImporter;
private int lastGameTime = 0;
public int Id { get; private set; }
@ -434,6 +435,14 @@ namespace IW4MAdmin
else if (E.Type == GameEvent.EventType.PreDisconnect)
{
bool isPotentialFalseQuit = E.GameTime.HasValue && E.GameTime.Value == lastGameTime;
if (isPotentialFalseQuit)
{
Logger.WriteInfo($"Receive predisconnect event for {E}, but it occured at game time {E.GameTime.Value}, which is the same last map change, so we're ignoring");
return false;
}
// predisconnect comes from minimal rcon polled players and minimal log players
// so we need to disconnect the "full" version of the client
var client = GetClientsAsList().FirstOrDefault(_client => _client.Equals(E.Origin));
@ -531,11 +540,21 @@ namespace IW4MAdmin
string mapname = dict["mapname"];
UpdateMap(mapname);
}
if (E.GameTime.HasValue)
{
lastGameTime = E.GameTime.Value;
}
}
if (E.Type == GameEvent.EventType.MapEnd)
{
Logger.WriteInfo("Game ending...");
if (E.GameTime.HasValue)
{
lastGameTime = E.GameTime.Value;
}
}
if (E.Type == GameEvent.EventType.Tell)
@ -601,6 +620,12 @@ namespace IW4MAdmin
Logger.WriteDebug(e.GetExceptionInfo());
}
}
else if (client.IPAddress != null && client.State == ClientState.Disconnecting)
{
Logger.WriteWarning($"{client} state is Disconnecting (probably kicked), but they are still connected. trying to kick again...");
await client.CanConnect(client.IPAddress);
}
}
/// <summary>

15
Plugins/Stats/Cheat/Detection.cs
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@ -70,7 +70,7 @@ namespace IW4MAdmin.Plugins.Stats.Cheat
/// </summary>
/// <param name="hit">kill performed by the player</param>
/// <returns>true if detection reached thresholds, false otherwise</returns>
public DetectionPenaltyResult ProcessHit(EFClientKill hit, bool isDamage)
public IEnumerable<DetectionPenaltyResult> ProcessHit(EFClientKill hit)
{
var results = new List<DetectionPenaltyResult>();
@ -81,10 +81,10 @@ namespace IW4MAdmin.Plugins.Stats.Cheat
// hack: prevents false positives
(LastWeapon != hit.Weapon && (hit.TimeOffset - LastOffset) == 50))
{
return new DetectionPenaltyResult()
return new[] {new DetectionPenaltyResult()
{
ClientPenalty = EFPenalty.PenaltyType.Any,
};
}};
}
LastWeapon = hit.Weapon;
@ -92,7 +92,7 @@ namespace IW4MAdmin.Plugins.Stats.Cheat
HitLocationCount[hit.HitLoc].Count++;
HitCount++;
if (!isDamage)
if (hit.IsKill)
{
Kills++;
}
@ -464,12 +464,7 @@ namespace IW4MAdmin.Plugins.Stats.Cheat
Tracker.OnChange(snapshot);
return results.FirstOrDefault(_result => _result.ClientPenalty == EFPenalty.PenaltyType.Ban) ??
results.FirstOrDefault(_result => _result.ClientPenalty == EFPenalty.PenaltyType.Flag) ??
new DetectionPenaltyResult()
{
ClientPenalty = EFPenalty.PenaltyType.Any,
};
return results;
}
}
}

21
Plugins/Stats/Helpers/StatManager.cs
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@ -510,7 +510,6 @@ namespace IW4MAdmin.Plugins.Stats.Helpers
if (Plugin.Config.Configuration().EnableAntiCheat && !attacker.IsBot && attacker.ClientId != victim.ClientId)
{
DetectionPenaltyResult result = new DetectionPenaltyResult() { ClientPenalty = EFPenalty.PenaltyType.Any };
clientDetection.TrackedHits.Add(hit);
if (clientDetection.TrackedHits.Count >= MIN_HITS_TO_RUN_DETECTION)
@ -525,7 +524,7 @@ namespace IW4MAdmin.Plugins.Stats.Helpers
if (oldestHit.IsAlive)
{
result = clientDetection.ProcessHit(oldestHit, isDamage);
var result = DeterminePenaltyResult(clientDetection.ProcessHit(oldestHit), attacker.CurrentServer.EndPoint);
#if !DEBUG
await ApplyPenalty(result, attacker);
#endif
@ -564,6 +563,18 @@ namespace IW4MAdmin.Plugins.Stats.Helpers
}
}
private DetectionPenaltyResult DeterminePenaltyResult(IEnumerable<DetectionPenaltyResult> results, long serverId)
{
// allow disabling of certain detection types
results = results.Where(_result => ShouldUseDetection(serverId, _result.Type));
return results.FirstOrDefault(_result => _result.ClientPenalty == EFPenalty.PenaltyType.Ban) ??
results.FirstOrDefault(_result => _result.ClientPenalty == EFPenalty.PenaltyType.Flag) ??
new DetectionPenaltyResult()
{
ClientPenalty = EFPenalty.PenaltyType.Any,
};
}
public async Task SaveHitCache(long serverId)
{
using (var ctx = new DatabaseContext(true))
@ -594,12 +605,6 @@ namespace IW4MAdmin.Plugins.Stats.Helpers
async Task ApplyPenalty(DetectionPenaltyResult penalty, EFClient attacker)
{
// allow disabling of certain detection types
if (!ShouldUseDetection(attacker.CurrentServer.EndPoint, penalty.Type))
{
return;
}
var penaltyClient = Utilities.IW4MAdminClient(attacker.CurrentServer);
switch (penalty.ClientPenalty)
{

4
SharedLibraryCore/Events/GameEvent.cs
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@ -217,6 +217,10 @@ namespace SharedLibraryCore
public EventRequiredEntity RequiredEntity { get; set; }
public string Data; // Data is usually the message sent by player
public string Message;
/// <summary>
/// Specifies the game time offset as printed in the log
/// </summary>
public int? GameTime { get; set; }
public EFClient Origin;
public EFClient Target;
public Server Owner;

3
SharedLibraryCore/PartialEntities/EFClient.cs
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@ -328,6 +328,7 @@ namespace SharedLibraryCore.Database.Models
e.FailReason = GameEvent.EventFailReason.Permission;
}
State = ClientState.Disconnecting;
sender.CurrentServer.Manager.GetEventHandler().AddEvent(e);
return e;
}
@ -563,7 +564,7 @@ namespace SharedLibraryCore.Database.Models
CurrentServer.Logger.WriteDebug($"OnJoin finished for {this}");
}
private async Task<bool> CanConnect(int? ipAddress)
public async Task<bool> CanConnect(int? ipAddress)
{
var loc = Utilities.CurrentLocalization.LocalizationIndex;
var autoKickClient = Utilities.IW4MAdminClient(CurrentServer);

27
SharedLibraryCore/Services/ClientService.cs
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@ -112,9 +112,12 @@ namespace SharedLibraryCore.Services
.Where(_alias => _alias.IPAddress == ip || (_alias.LinkId == entity.AliasLinkId));
var aliases = await iqAliases.ToListAsync();
var currentIPs = aliases.Where(_a2 => _a2.IPAddress != null).Select(_a2 => _a2.IPAddress).Distinct();
var floatingIPAliases = await context.Aliases.Where(_alias => currentIPs.Contains(_alias.IPAddress)).ToListAsync();
aliases.AddRange(floatingIPAliases);
// see if they have a matching IP + Name but new NetworkId
var existingExactAlias = aliases.FirstOrDefault(a => a.Name == name && a.IPAddress == ip);
var existingExactAlias = aliases.OrderBy(_alias => _alias.LinkId).FirstOrDefault(a => a.Name == name && a.IPAddress == ip);
bool hasExactAliasMatch = existingExactAlias != null;
// if existing alias matches link them
@ -128,17 +131,22 @@ namespace SharedLibraryCore.Services
bool isAliasLinkUpdated = newAliasLink.AliasLinkId != entity.AliasLink.AliasLinkId;
await context.SaveChangesAsync();
int distinctLinkCount = aliases.Select(_alias => _alias.LinkId).Distinct().Count();
// this happens when the link we found is different than the one we create before adding an IP
if (isAliasLinkUpdated)
if (isAliasLinkUpdated || distinctLinkCount > 1)
{
entity.CurrentServer.Logger.WriteDebug($"[updatealias] found a link for {entity} so we are updating link from {entity.AliasLink.AliasLinkId} to {newAliasLink.AliasLinkId}");
var oldAliasLink = entity.AliasLink;
var completeAliasLinkIds = aliases.Select(_item => _item.LinkId)
.Append(entity.AliasLinkId)
.Distinct()
.ToList();
entity.CurrentServer.Logger.WriteDebug($"[updatealias] updating aliasLinks {string.Join(',', completeAliasLinkIds)} for IP {ip} to {newAliasLink.AliasLinkId}");
// update all the clients that have the old alias link
await context.Clients
.Where(_client => _client.AliasLinkId == oldAliasLink.AliasLinkId)
.Where(_client => completeAliasLinkIds.Contains(_client.AliasLinkId))
.ForEachAsync(_client => _client.AliasLinkId = newAliasLink.AliasLinkId);
// we also need to update all the penalties or they get deleted
@ -151,7 +159,7 @@ namespace SharedLibraryCore.Services
// link2 is deleted
// link2 penalties are orphaned
await context.Penalties
.Where(_penalty => _penalty.LinkId == oldAliasLink.AliasLinkId)
.Where(_penalty => completeAliasLinkIds.Contains(_penalty.LinkId))
.ForEachAsync(_penalty => _penalty.LinkId = newAliasLink.AliasLinkId);
entity.AliasLink = newAliasLink;
@ -159,14 +167,17 @@ namespace SharedLibraryCore.Services
// update all previous aliases
await context.Aliases
.Where(_alias => _alias.LinkId == oldAliasLink.AliasLinkId)
.Where(_alias => completeAliasLinkIds.Contains(_alias.LinkId))
.ForEachAsync(_alias => _alias.LinkId = newAliasLink.AliasLinkId);
await context.SaveChangesAsync();
// we want to delete the now inactive alias
context.AliasLinks.Remove(oldAliasLink);
if (newAliasLink.AliasLinkId != entity.AliasLinkId)
{
context.AliasLinks.Remove(entity.AliasLink);
await context.SaveChangesAsync();
}
}
// the existing alias matches ip and name, so we can just ignore the temporary one
if (hasExactAliasMatch)