Automatically rename members with 'bad names' (#314)

* Automatically rename members with 'bad names'

Bad names being names that attempt to impersonate or roleplay as a public figure or organization

* Move lists from config into files under Lists/

Author: FloatingMilkshake

Events/MemberEvents.cs

@@ -98,6 +98,9 @@ public static async Task GuildMemberAdded(DiscordClient client, GuildMemberAdded
                 await channel.AddOverwriteAsync(e.Member, overwrite.Value.Allowed, overwrite.Value.Denied,
                     "Restoring saved overrides for member.");
             }
+            
+            // Change member name if it attempts to impersonate/roleplay a public figure or organization
+            await MemberHelpers.CheckAndChangeBadMemberNameAsync(e.Member);
         }
 
         public static async Task GuildMemberRemoved(DiscordClient client, GuildMemberRemovedEventArgs e)
@@ -245,6 +248,9 @@ await e.Member.ModifyAsync(a =>
                         a.Nickname = DehoistHelpers.DehoistName(e.Member.DisplayName);
                         a.AuditLogReason = "[Automatic dehoist; user is permadehoisted]";
                     });
+            
+            // Change member name if it attempts to impersonate/roleplay a public figure or organization
+            await MemberHelpers.CheckAndChangeBadMemberNameAsync(e.Member);
 
             // cache user
             if (Program.cfgjson.EnablePersistentDb)

Helpers/MemberHelpers.cs

@@ -0,0 +1,15 @@
+namespace Cliptok.Helpers
+{
+    public class MemberHelpers
+    {
+        public static async Task CheckAndChangeBadMemberNameAsync(DiscordMember member)
+        {
+            if (Program.badNicknames.Any(x => x.ToLower() == member.DisplayName.ToLower()))
+                await member.ModifyAsync(x =>
+                {
+                    x.Nickname = $"{Program.badNicknameAdverbs[Program.rand.Next(Program.badNicknameAdverbs.Length)]} Not {member.DisplayName}";
+                    x.AuditLogReason = "Automatically changing bad member name.";
+                });
+        }
+    }
+}

Lists/adverbs.txt

@@ -0,0 +1,14 @@
+Definitely
+Absolutely
+Ostensibly
+Certainly
+Surely
+Obviously
+Clearly
+Unmistakably
+Unequivocally
+Positively
+Unquestionably
+Undeniably
+Indisputably
+Irrefutably

Lists/nicknames.txt

@@ -0,0 +1,21 @@
+Bill Gates
+Steve Jobs
+Satya Nadella
+Tim Cook
+Mark Zuckerberg
+Elon Musk
+Jeff Bezos
+Windows XP
+Windows 7
+Windows 8
+Windows 8.1
+Windows 10
+Windows 11
+Windows 12
+Microsoft
+Apple
+macOS
+Mac OS X
+Google
+COVID-19
+Coronavirus

Program.cs

@@ -55,6 +55,9 @@ class Program
         public static string[] avatars;
 
         public static string[] badUsernames;
+        public static string[] badNicknames;
+        public static string[] badNicknameAdverbs;
+        
         public static List<ulong> autoBannedUsersCache = new();
         public static DiscordGuild homeGuild;
 
@@ -152,6 +155,16 @@ static async Task Main(string[] _)
                 badUsernames = File.ReadAllLines("Lists/usernames.txt");
             else
                 badUsernames = Array.Empty<string>();
+            
+            if (File.Exists("Lists/nicknames.txt"))
+                badNicknames = File.ReadAllLines("Lists/nicknames.txt");
+            else
+                badNicknames = Array.Empty<string>();
+            
+            if (File.Exists("Lists/adverbs.txt"))
+                badNicknameAdverbs = File.ReadAllLines("Lists/adverbs.txt");
+            else
+                badNicknameAdverbs = Array.Empty<string>();
 
             avatars = File.ReadAllLines("Lists/avatars.txt");