Merge branch 'main' into features/text-processing

Common/Utilities.cs

@@ -1,5 +1,7 @@
 using Discord;
+using RegexBot.Data;
 using System.Diagnostics.CodeAnalysis;
+using System.Net;
 using System.Text;
 using System.Text.RegularExpressions;
 
@@ -81,7 +83,7 @@ public static class Utilities {
         try {
             var entityTry = new EntityName(input!, EntityType.User);
             var issueq = bot.EcQueryUser(entityTry.Id!.Value.ToString());
-            if (issueq != null) result = $"<@{issueq.UserId}> - {issueq.Username}#{issueq.Discriminator} `{issueq.UserId}`";
+            if (issueq != null) result = $"<@{issueq.UserId}> - {issueq.GetDisplayableUsername()} `{issueq.UserId}`";
             else result = $"Unknown user with ID `{entityTry.Id!.Value}`";
         } catch (Exception) { }
         return result ?? input;
@@ -98,4 +100,36 @@ public static class Utilities {
             .Replace("@_", m.Author.Mention)
             .Replace("@\\_", "@_");
     }
+
+    /// <inheritdoc cref="GetDisplayableUsernameCommon"/>
+    public static string GetDisplayableUsername(this SocketUser user)
+        => GetDisplayableUsernameCommon(user.Username, user.Discriminator, user.GlobalName);
+
+    /// <inheritdoc cref="GetDisplayableUsernameCommon"/>
+    public static string GetDisplayableUsername(this CachedUser user)
+        => GetDisplayableUsernameCommon(user.Username, user.Discriminator, user.GlobalName);
+
+    /// <summary>
+    /// Returns a string representation of the user's username suitable for display purposes.
+    /// For the sake of consistency, it is preferable using this instead of any other means, including Discord.Net's ToString.
+    /// </summary>
+    private static string GetDisplayableUsernameCommon(string username, string discriminator, string? global) {
+        static string escapeFormattingCharacters(string input) {
+            var result = new StringBuilder();
+            foreach (var c in input) {
+                if (c is '\\' or '_' or '~' or '*' or '@' or '`') {
+                    result.Append('\\');
+                }
+                result.Append(c);
+            }
+            return result.ToString();
+        }
+
+        if (discriminator == "0000") {
+            if (global != null) return $"{escapeFormattingCharacters(global)} ({username})";
+            return username;
+        } else {
+            return $"{escapeFormattingCharacters(username)}#{discriminator}";
+        }
+    }
 }

Data/CachedUser.cs

@@ -25,10 +25,15 @@ public class CachedUser {
     public string Username { get; set; } = null!;
 
     /// <summary>
-    /// Gets the user's discriminator value.
+    /// Gets the user's discriminator value. A value of "0000" means the user is on the new username system.
     /// </summary>
     public string Discriminator { get; set; } = null!;
-    
+
+    /// <summary>
+    /// Gets the user's display name. A user <em>may</em> have a global name if they are on the new username system.
+    /// </summary>
+    public string? GlobalName { get; set; } = null!;
+
     /// <summary>
     /// Gets the avatar URL, if any, for the associated user.
     /// </summary>

Data/Migrations/20231115032040_NewUsernames.Designer.cs

@@ -0,0 +1,239 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using RegexBot.Data;
+
+#nullable disable
+
+namespace RegexBot.Data.Migrations
+{
+    [DbContext(typeof(BotDatabaseContext))]
+    [Migration("20231115032040_NewUsernames")]
+    partial class NewUsernames
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.7")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.HasPostgresEnum(modelBuilder, "mod_log_type", new[] { "other", "note", "warn", "timeout", "kick", "ban" });
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("RegexBot.Data.CachedGuildMessage", b =>
+                {
+                    b.Property<long>("MessageId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("message_id");
+
+                    b.Property<List<string>>("AttachmentNames")
+                        .IsRequired()
+                        .HasColumnType("text[]")
+                        .HasColumnName("attachment_names");
+
+                    b.Property<long>("AuthorId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("author_id");
+
+                    b.Property<long>("ChannelId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("channel_id");
+
+                    b.Property<string>("Content")
+                        .HasColumnType("text")
+                        .HasColumnName("content");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("created_at")
+                        .HasDefaultValueSql("now()");
+
+                    b.Property<DateTimeOffset?>("EditedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("edited_at");
+
+                    b.Property<long>("GuildId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("guild_id");
+
+                    b.HasKey("MessageId")
+                        .HasName("pk_cache_guildmessages");
+
+                    b.HasIndex("AuthorId")
+                        .HasDatabaseName("ix_cache_guildmessages_author_id");
+
+                    b.ToTable("cache_guildmessages", (string)null);
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedGuildUser", b =>
+                {
+                    b.Property<long>("GuildId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("guild_id");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("user_id");
+
+                    b.Property<DateTimeOffset>("FirstSeenTime")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("first_seen_time")
+                        .HasDefaultValueSql("now()");
+
+                    b.Property<DateTimeOffset>("GULastUpdateTime")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("gu_last_update_time");
+
+                    b.Property<string>("Nickname")
+                        .HasColumnType("text")
+                        .HasColumnName("nickname");
+
+                    b.HasKey("GuildId", "UserId")
+                        .HasName("pk_cache_usersinguild");
+
+                    b.HasIndex("UserId")
+                        .HasDatabaseName("ix_cache_usersinguild_user_id");
+
+                    b.ToTable("cache_usersinguild", (string)null);
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedUser", b =>
+                {
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("user_id");
+
+                    b.Property<string>("AvatarUrl")
+                        .HasColumnType("text")
+                        .HasColumnName("avatar_url");
+
+                    b.Property<string>("Discriminator")
+                        .IsRequired()
+                        .HasMaxLength(4)
+                        .HasColumnType("character(4)")
+                        .HasColumnName("discriminator")
+                        .IsFixedLength();
+
+                    b.Property<string>("GlobalName")
+                        .HasColumnType("text")
+                        .HasColumnName("global_name");
+
+                    b.Property<DateTimeOffset>("ULastUpdateTime")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("u_last_update_time");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("username");
+
+                    b.HasKey("UserId")
+                        .HasName("pk_cache_users");
+
+                    b.ToTable("cache_users", (string)null);
+                });
+
+            modelBuilder.Entity("RegexBot.Data.ModLogEntry", b =>
+                {
+                    b.Property<int>("LogId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("log_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("LogId"));
+
+                    b.Property<long>("GuildId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("guild_id");
+
+                    b.Property<string>("IssuedBy")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("issued_by");
+
+                    b.Property<int>("LogType")
+                        .HasColumnType("integer")
+                        .HasColumnName("log_type");
+
+                    b.Property<string>("Message")
+                        .HasColumnType("text")
+                        .HasColumnName("message");
+
+                    b.Property<DateTimeOffset>("Timestamp")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("timestamp")
+                        .HasDefaultValueSql("now()");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("user_id");
+
+                    b.HasKey("LogId")
+                        .HasName("pk_modlogs");
+
+                    b.HasIndex("GuildId", "UserId")
+                        .HasDatabaseName("ix_modlogs_guild_id_user_id");
+
+                    b.ToTable("modlogs", (string)null);
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedGuildMessage", b =>
+                {
+                    b.HasOne("RegexBot.Data.CachedUser", "Author")
+                        .WithMany("GuildMessages")
+                        .HasForeignKey("AuthorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_cache_guildmessages_cache_users_author_id");
+
+                    b.Navigation("Author");
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedGuildUser", b =>
+                {
+                    b.HasOne("RegexBot.Data.CachedUser", "User")
+                        .WithMany("Guilds")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_cache_usersinguild_cache_users_user_id");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("RegexBot.Data.ModLogEntry", b =>
+                {
+                    b.HasOne("RegexBot.Data.CachedGuildUser", "User")
+                        .WithMany("Logs")
+                        .HasForeignKey("GuildId", "UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_modlogs_cache_usersinguild_user_temp_id");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedGuildUser", b =>
+                {
+                    b.Navigation("Logs");
+                });
+
+            modelBuilder.Entity("RegexBot.Data.CachedUser", b =>
+                {
+                    b.Navigation("GuildMessages");
+
+                    b.Navigation("Guilds");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Data/Migrations/20231115032040_NewUsernames.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace RegexBot.Data.Migrations
+{
+    public partial class NewUsernames : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "global_name",
+                table: "cache_users",
+                type: "text",
+                nullable: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "global_name",
+                table: "cache_users");
+        }
+    }
+}

Data/Migrations/BotDatabaseContextModelSnapshot.cs

@@ -120,6 +120,10 @@ namespace RegexBot.Data.Migrations
                         .HasColumnName("discriminator")
                         .IsFixedLength();
 
+                    b.Property<string>("GlobalName")
+                        .HasColumnType("text")
+                        .HasColumnName("global_name");
+
                     b.Property<DateTimeOffset>("ULastUpdateTime")
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("u_last_update_time");

License.txt

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-2022 Noi <noithecat AT protonmail.com>
+Copyright (c) 2018-2023 Noi <noi@noithecat.dev>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

Modules/EntryRole/EntryRole.cs

@@ -1,7 +1,7 @@
-using System.Text;
+using RegexBot.Common;
+using System.Text;
 
 namespace RegexBot.Modules.EntryRole;
-
 /// <summary>
 /// Automatically sets a role onto users entering the guild after a predefined amount of time.
 /// </summary>
@@ -138,7 +138,7 @@ internal sealed class EntryRole : RegexbotModule, IDisposable {
         var failList = new StringBuilder();
         var count = 0;
         foreach (var item in failedUserList) {
-            failList.Append($", {item.Username}#{item.Discriminator}");
+            failList.Append($", {item.GetDisplayableUsername()}");
             count++;
             if (count > 5) {
                 failList.Append($"and {count} other(s).");

Modules/ModCommands/Commands/ShowModLogs.cs

@@ -58,7 +58,7 @@ class ShowModLogs : CommandConfig {
 
         var resultList = new EmbedBuilder() {
             Author = new EmbedAuthorBuilder() {
-                Name = $"{query.User.Username}#{query.User.Discriminator}",
+                Name = $"{query.User.GetDisplayableUsername()}",
                 IconUrl = query.User.AvatarUrl
             },
             Footer = new EmbedFooterBuilder() {

Modules/ModCommands/Commands/Unban.cs

@@ -29,13 +29,13 @@ class Unban : CommandConfig {
         var query = Module.Bot.EcQueryUser(targetstr);
         if (query != null) {
             targetId = (ulong)query.UserId;
-            targetDisplay = $"{query.Username}#{query.Discriminator}";
+            targetDisplay = $"**{query.GetDisplayableUsername()}**";
         } else {
             if (!ulong.TryParse(targetstr, out targetId)) {
                 await SendUsageMessageAsync(msg.Channel, TargetNotFound);
                 return;
             }
-            targetDisplay = $"with ID {targetId}";
+            targetDisplay = $"with ID **{targetId}**";
         }
 
         // Do the action

Modules/ModLogs/ModLogs_Logging.cs

@@ -24,7 +24,7 @@ internal partial class ModLogs {
         var issuedDisplay = Utilities.TryFromEntityNameString(entry.IssuedBy, Bot);
         string targetDisplay;
         var targetq = Bot.EcQueryUser(entry.UserId.ToString());
-        if (targetq != null) targetDisplay = $"<@{targetq.UserId}> - {targetq.Username}#{targetq.Discriminator} `{targetq.UserId}`";
+        if (targetq != null) targetDisplay = $"<@{targetq.UserId}> - {targetq.GetDisplayableUsername()} `{targetq.UserId}`";
         else targetDisplay = $"User with ID `{entry.UserId}`";
 
         var logEmbed = new EmbedBuilder()

Modules/ModLogs/ModLogs_Messages.cs

@@ -1,5 +1,6 @@
 using Discord;
 using Microsoft.EntityFrameworkCore;
+using RegexBot.Common;
 using RegexBot.Data;
 using System.Text;
 
@@ -13,6 +14,7 @@ internal partial class ModLogs {
     private async Task HandleDelete(Cacheable<IMessage, ulong> argMsg, Cacheable<IMessageChannel, ulong> argChannel) {
         const int MaxPreviewLength = 750;
         if (argChannel.Value is not SocketTextChannel channel) return;
+        
         var conf = GetGuildState<ModuleConfig>(channel.Guild.Id);
         if ((conf?.LogMessageDeletions ?? false) == false) return;
         var reportChannel = conf?.ReportingChannel?.FindChannelIn(channel.Guild, true);
@@ -50,7 +52,7 @@ internal partial class ModLogs {
                 };
             } else {
                 reportEmbed.Author = new EmbedAuthorBuilder() {
-                    Name = $"{cachedMsg.Author.Username}#{cachedMsg.Author.Discriminator}",
+                    Name = $"{cachedMsg.Author.GetDisplayableUsername()}",
                     IconUrl = cachedMsg.Author.AvatarUrl ?? GetDefaultAvatarUrl(cachedMsg.Author.Discriminator)
                 };
             }
@@ -71,6 +73,7 @@ internal partial class ModLogs {
         var channel = (SocketTextChannel)newMsg.Channel;
         var conf = GetGuildState<ModuleConfig>(channel.Guild.Id);
         
+        if (newMsg.Author.IsBot || newMsg.Author.IsWebhook) return;
         var reportChannel = conf?.ReportingChannel?.FindChannelIn(channel.Guild, true);
         if (reportChannel == null) return;
         if (reportChannel.Id == channel.Id) {
@@ -85,7 +88,7 @@ internal partial class ModLogs {
             .WithFooter($"Message ID: {newMsg.Id}");
 
         reportEmbed.Author = new EmbedAuthorBuilder() {
-            Name = $"{newMsg.Author.Username}#{newMsg.Author.Discriminator}",
+            Name = $"{newMsg.Author.GetDisplayableUsername()}",
             IconUrl = newMsg.Author.GetAvatarUrl() ?? newMsg.Author.GetDefaultAvatarUrl()
         };
 
@@ -130,7 +133,7 @@ internal partial class ModLogs {
         string userDisplay;
         if (userId.HasValue) {
             var q = Bot.EcQueryUser(userId.Value.ToString());
-            if (q != null) userDisplay = $"<@{q.UserId}> - {q.Username}#{q.Discriminator} `{q.UserId}`";
+            if (q != null) userDisplay = $"<@{q.UserId}> - {q.GetDisplayableUsername()} `{q.UserId}`";
             else userDisplay = $"Unknown user with ID `{userId}`";
         } else {
             userDisplay = "Unknown";

Modules/RegexModerator/ResponseExecutor.cs

@@ -113,8 +113,8 @@ class ResponseExecutor {
                     }
                 )
                 .WithAuthor(
-                    name: $"{_msg.Author.Username}#{_msg.Author.Discriminator} said:",
-                    iconUrl: _msg.Author.GetAvatarUrl(),
+                    name: $"{_user.GetDisplayableUsername()} said:",
+                    iconUrl: _user.GetAvatarUrl(),
                     url: _msg.GetJumpUrl()
                 )
                 .WithDescription(invokingLine)
@@ -127,7 +127,7 @@ class ResponseExecutor {
             try {
                 await reportTarget.SendMessageAsync(embed: resultEmbed);
             } catch (Discord.Net.HttpException ex) when (ex.HttpCode == System.Net.HttpStatusCode.Forbidden) {
-                Log("Encountered 403 error when attempting to send report.");
+                Log("Encountered error 403 when attempting to send report.");
             }
         }
     }
@@ -218,7 +218,7 @@ class ResponseExecutor {
             if (targetCh == null) return FromError($"Unable to find channel '{name.Name}'.");
             isUser = false;
         } else if (name.Type == EntityType.User) {
-            if (name.Name == "_") targetCh = await _msg.Author.CreateDMChannelAsync();
+            if (name.Name == "_") targetCh = await _user.CreateDMChannelAsync();
             else {
                 var searchedUser = name.FindUserIn(_guild);
                 if (searchedUser == null) return FromError($"Unable to find user '{name.Name}'.");

RegexBot.csproj

@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="Discord.Net" Version="3.8.1" />
+    <PackageReference Include="Discord.Net" Version="3.12.0" />
     <PackageReference Include="EFCore.NamingConventions" Version="6.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.7" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.7">

Services/CommonFunctions/BanKickResult.cs

@@ -98,8 +98,7 @@ public class BanKickResult {
         if (_rptTargetId != 0) {
             var user = bot.EcQueryUser(_rptTargetId.ToString());
             if (user != null) {
-                // TODO sanitize possible formatting characters in display name
-                msg += $" user **{user.Username}#{user.Discriminator}**";
+                msg += $" user **{user.GetDisplayableUsername()}**";
             } else {
                 msg += $" user with ID **{_rptTargetId}**";
             }

Services/CommonFunctions/CF_ModLogs.Hooks.cs

@@ -68,7 +68,7 @@ partial class RegexbotClient {
         // Attempt warning message
         var userSearch = _svcEntityCache.QueryUserCache(targetUser.ToString());
         var userDisp = userSearch != null
-            ? $"**{userSearch.Username}#{userSearch.Discriminator}**"
+            ? $"**{userSearch.GetDisplayableUsername()}**"
             : $"user with ID **{targetUser}**";
         var targetGuildUser = guild.GetUser(targetUser);
         if (targetGuildUser == null) return (entry, new LogAppendResult(

Services/CommonFunctions/TimeoutSetResult.cs

@@ -15,10 +15,10 @@ public class TimeoutSetResult : IOperationResult {
     public Exception? Error { get; }
 
     /// <inheritdoc/>
-    public bool ErrorNotFound => (_target == null) || ((Error as HttpException)?.HttpCode == System.Net.HttpStatusCode.NotFound);
+    public bool ErrorNotFound => (_target == null) || Error is HttpException { HttpCode: System.Net.HttpStatusCode.NotFound };
 
     /// <inheritdoc/>
-    public bool ErrorForbidden => (Error as HttpException)?.HttpCode == System.Net.HttpStatusCode.Forbidden;
+    public bool ErrorForbidden => Error is HttpException { HttpCode: System.Net.HttpStatusCode.Forbidden };
 
     /// <inheritdoc/>
     public bool NotificationSuccess { get; }
@@ -32,7 +32,7 @@ public class TimeoutSetResult : IOperationResult {
     /// <inheritdoc/>
     public string ToResultString() {
         if (Success) {
-            var msg = $":white_check_mark: Timeout set for **{_target!.Username}#{_target.Discriminator}**.";
+            var msg = $":white_check_mark: Timeout set for **{_target!.GetDisplayableUsername()}**.";
             if (!NotificationSuccess) msg += "\n(User was unable to receive notification message.)";
             return msg;
         } else {

Services/EntityCache/MessageCachingSubservice.cs

@@ -17,13 +17,14 @@ class MessageCachingSubservice {
         // This event is fired also when a link preview embed is added to a message. In those situations, the message's edited timestamp
         // remains null, in addition to having other unusual and unexpected properties. We are not interested in these.
         if (!arg2.EditedTimestamp.HasValue) return Task.CompletedTask;
+        if (arg2.Author.IsBot || arg2.Author.IsWebhook) return Task.CompletedTask; // we don't log these anyway, so don't pass them on
         return AddOrUpdateCacheItemAsync(arg2, true);
     }
 
     private async Task AddOrUpdateCacheItemAsync(SocketMessage arg, bool isUpdate) {
         //if (!Common.Utilities.IsValidUserMessage(arg, out _)) return;
         if (arg.Channel is not SocketTextChannel) return;
-        if (arg.Author.IsWebhook) return; // do get bot messages, don't get webhooks
+        if (arg.Author.IsBot || arg.Author.IsWebhook) return; // do not get messages from an automated source
         if (((IMessage)arg).Type != MessageType.Default) return;
         if (arg is SocketSystemMessage) return;
 

Services/EntityCache/UserCachingSubservice.cs

@@ -60,6 +60,7 @@ class UserCachingSubservice {
 
         uinfo.Username = user.Username;
         uinfo.Discriminator = user.Discriminator;
+        uinfo.GlobalName = user.GlobalName;
         uinfo.AvatarUrl = user.GetAvatarUrl(size: 512);
         uinfo.ULastUpdateTime = DateTimeOffset.UtcNow;
     }