From 9e921d5ff90dbc26683d3eeaea29fab0c6e99a7f Mon Sep 17 00:00:00 2001
From: barelyprofessional
 <150058423+barelyprofessional@users.noreply.github.com>
Date: Thu, 9 Apr 2026 20:32:44 -0500
Subject: [PATCH] Because apparently being retards in the chat is lol xD lmao
 so funny and my patch the other day made some people mad the war has now
 escalated

---
 KfChatDotNetBot/ChatBot.cs             | 41 ++++++++++++++++++++++----
 KfChatDotNetBot/KfChatDotNetBot.csproj |  1 +
 KfChatDotNetBot/Settings/BuiltIn.cs    |  4 +++
 3 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/KfChatDotNetBot/ChatBot.cs b/KfChatDotNetBot/ChatBot.cs
index d4817bc..bacd736 100644
--- a/KfChatDotNetBot/ChatBot.cs
+++ b/KfChatDotNetBot/ChatBot.cs
@@ -1,5 +1,6 @@
 using System.Net;
 using System.Text.Json;
+using Homoglyphic;
 using KfChatDotNetBot.Extensions;
 using KfChatDotNetBot.Models;
 using KfChatDotNetBot.Models.DbModels;
@@ -37,6 +38,7 @@ public class ChatBot
     private List<ScheduledAutoDeleteModel> _scheduledDeletions = [];
     private Task _scheduledAutoDeleteTask;
     private List<UserModel> _currentUsersInChat = [];
+    private HomoglyphSearch? _homoglyphSearch;
 
     public ChatBot()
     {
@@ -95,6 +97,13 @@ public class ChatBot
         _logger.Debug("Creating scheduled auto deletion task");
         _scheduledAutoDeleteTask = ScheduledDeletionTask();
         
+        _logger.Debug("Trying to load homoglyphs");
+        if (File.Exists("homoglyphs.csv"))
+        {
+            var sets = HomoglyphLoader.LoadSets("homoglyphs.csv");
+            _homoglyphSearch = new HomoglyphSearch(sets);
+        }
+        
         _logger.Debug("Blocking the main thread");
         var exitEvent = new ManualResetEvent(false);
         exitEvent.WaitOne();
@@ -440,16 +449,36 @@ public class ChatBot
             // Strip weird control characters and just allow basic punctuation + whitespace
             var kindaSanitized = new string(message.MessageRawHtmlDecoded
                 .Where(c => c == ' ' || char.IsPunctuation(c) || char.IsLetter(c) || char.IsDigit(c)).ToArray());
+            var homoglyphFound = false;
+            if (_homoglyphSearch != null)
+            {
+                var searchStrings =
+                    SettingsProvider.GetValueAsync(BuiltIn.Keys.BotDiscordImpersonationSearchStrings).Result
+                    .JsonDeserialize<List<string>>();
+                var lowerStrings = searchStrings?.Select(x => x.ToLower()).ToList();
+                var search = _homoglyphSearch.Search(kindaSanitized.ToLower(), lowerStrings);
+                if (search.Count == 0)
+                {
+                    search = _homoglyphSearch.Search(kindaSanitized, searchStrings);
+                }
+                homoglyphFound = search.Count > 0;
+            }
             if ((message.MessageEditDate == null || message.MessageDate > DateTimeOffset.UtcNow.AddSeconds(-15))
                 && message.Author.Id != settings[BuiltIn.Keys.GambaSeshUserId].ToType<int>() &&
                 message.Author.Username != settings[BuiltIn.Keys.KiwiFarmsUsername].Value &&
-                settings[BuiltIn.Keys.BotRespondToDiscordImpersonation].ToBoolean() &&
-                (kindaSanitized.Contains("discord16.png") ||
-                 (kindaSanitized.Contains("mBossmanJack:", StringComparison.CurrentCultureIgnoreCase) && 
-                  kindaSanitized.Contains("[img]", StringComparison.CurrentCultureIgnoreCase)) || 
-                 kindaSanitized.Contains("by @KenoGPT at", StringComparison.CurrentCultureIgnoreCase)))
+                settings[BuiltIn.Keys.BotRespondToDiscordImpersonation].ToBoolean() && kindaSanitized.Contains("[img]") 
+                && homoglyphFound)
             {
-                SendChatMessage($"☝️ {message.Author.Username} is a nigger faggot", true);
+                var deleteOrNah = SettingsProvider.GetValueAsync(BuiltIn.Keys.BotDiscordImpersonationDeleteAttempt)
+                    .Result.ToBoolean();
+                if (deleteOrNah)
+                {
+                    _ = KfClient.DeleteMessageAsync(message.MessageUuid);
+                }
+                else
+                {
+                    SendChatMessage($"☝️ {message.Author.Username} is a nigger faggot", true);
+                }
             }
         }
         
diff --git a/KfChatDotNetBot/KfChatDotNetBot.csproj b/KfChatDotNetBot/KfChatDotNetBot.csproj
index 827776d..f58f7cb 100644
--- a/KfChatDotNetBot/KfChatDotNetBot.csproj
+++ b/KfChatDotNetBot/KfChatDotNetBot.csproj
@@ -11,6 +11,7 @@
 
     <ItemGroup>
       <PackageReference Include="FlareSolverrSharp" Version="3.0.7" />
+      <PackageReference Include="Homoglyphic" Version="2.0.1" />
       <PackageReference Include="HtmlAgilityPack" Version="1.12.4" />
       <PackageReference Include="Humanizer.Core" Version="3.0.1" />
       <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.3" />
diff --git a/KfChatDotNetBot/Settings/BuiltIn.cs b/KfChatDotNetBot/Settings/BuiltIn.cs
index 090eb03..797284f 100644
--- a/KfChatDotNetBot/Settings/BuiltIn.cs
+++ b/KfChatDotNetBot/Settings/BuiltIn.cs
@@ -566,6 +566,10 @@ public static class BuiltIn
         public static string ShuffleDotUsBmjUserId = "ShuffleDotUs.BmjUserId";
         [BuiltInSetting("UUID for the current MOTD message UUID", SettingValueType.Text)]
         public static string KiwiFarmsMotdUuid = "KiwiFarms.MotdUuid";
+        [BuiltInSetting("Whether to delete the impersonation attempt instead of just calling it out", SettingValueType.Boolean, "false", BooleanRegex)]
+        public static string BotDiscordImpersonationDeleteAttempt = "Bot.DiscordImpersonation.DeleteAttempt";
+        [BuiltInSetting("What search strings the Homoglyphic searcher should look for", SettingValueType.Array, "[\"discord16.png\", \"mBossmanJack:\", \"mBossnanJack:\", \"mBosmanJack:\", \"by @KenoGPT at\"]")]
+        public static string BotDiscordImpersonationSearchStrings = "Bot.DiscordImpersonation.SearchStrings";
     }
 }