Count UTF-8 bytes and graphemes instead Microsoft brand UTF-16 whatevers.

SharpChat/ChatUser.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Globalization;
 using System.Text;
+using SharpChat.Commands;
 
 namespace SharpChat {
     public class ChatUser : IEquatable<ChatUser> {
@@ -23,8 +25,15 @@ namespace SharpChat {
             get {
                 StringBuilder sb = new();
 
-                if(Status == ChatUserStatus.Away)
+                if(Status == ChatUserStatus.Away) {
-                    sb.AppendFormat("&lt;{0}&gt;_", StatusText[..Math.Min(StatusText.Length, 5)].ToUpperInvariant());
+                    string statusText = StatusText.Trim();
+                    StringInfo sti = new StringInfo(statusText);
+                    if(Encoding.UTF8.GetByteCount(statusText) > AFKCommand.MAX_BYTES
+                        || sti.LengthInTextElements > AFKCommand.MAX_GRAPHEMES)
+                        statusText = sti.SubstringByTextElements(0, AFKCommand.MAX_GRAPHEMES);
+
+                    sb.AppendFormat("&lt;{0}&gt;_", statusText.ToUpperInvariant());
+                }
 
                 sb.Append(LegacyName);
 

SharpChat/Commands/AFKCommand.cs

@@ -1,10 +1,13 @@
 using SharpChat.Packet;
+using System.Globalization;
 using System.Linq;
+using System.Text;
 
 namespace SharpChat.Commands {
     public class AFKCommand : IChatCommand {
         private const string DEFAULT = "AFK";
-        private const int MAX_LENGTH = 5;
+        public const int MAX_GRAPHEMES = 5;
+        public const int MAX_BYTES = MAX_GRAPHEMES * 10;
 
         public bool IsMatch(ChatCommandContext ctx) {
             return ctx.NameEquals("afk");
@@ -16,8 +19,11 @@ namespace SharpChat.Commands {
                 statusText = DEFAULT;
             else {
                 statusText = statusText.Trim();
-                if(statusText.Length > MAX_LENGTH)
+
-                    statusText = statusText[..MAX_LENGTH].Trim();
+                StringInfo sti = new StringInfo(statusText);
+                if(Encoding.UTF8.GetByteCount(statusText) > MAX_BYTES
+                    || sti.LengthInTextElements > MAX_GRAPHEMES)
+                    statusText = sti.SubstringByTextElements(0, MAX_GRAPHEMES).Trim();
             }
 
             ctx.Chat.UpdateUser(

SharpChat/Commands/NickCommand.cs

@@ -1,8 +1,13 @@
 using SharpChat.Packet;
+using System.Globalization;
 using System.Linq;
+using System.Text;
 
 namespace SharpChat.Commands {
     public class NickCommand : IChatCommand {
+        private const int MAX_GRAPHEMES = 16;
+        private const int MAX_BYTES = MAX_GRAPHEMES * 10;
+
         public bool IsMatch(ChatCommandContext ctx) {
             return ctx.NameEquals("nick");
         }
@@ -36,10 +41,14 @@ namespace SharpChat.Commands {
 
             if(nickStr == targetUser.UserName)
                 nickStr = string.Empty;
-            else if(nickStr.Length > 15)
-                nickStr = nickStr[..15];
             else if(string.IsNullOrEmpty(nickStr))
                 nickStr = string.Empty;
+            else {
+                StringInfo nsi = new StringInfo(nickStr);
+                if(Encoding.UTF8.GetByteCount(nickStr) > MAX_BYTES
+                    || nsi.LengthInTextElements > MAX_GRAPHEMES)
+                    nickStr = nsi.SubstringByTextElements(0, MAX_GRAPHEMES).Trim();
+            }
 
             if(!string.IsNullOrWhiteSpace(nickStr) && ctx.Chat.Users.Any(u => u.NameEquals(nickStr))) {
                 ctx.Chat.SendTo(ctx.User, new LegacyCommandResponse(LCR.NAME_IN_USE, true, nickStr));

SharpChat/EventStorage/MariaDBEventStorage_Database.cs

@@ -24,6 +24,7 @@ namespace SharpChat.EventStorage {
                 SslMode = MySqlSslMode.None,
                 ForceSynchronous = true,
                 ConnectionTimeout = 5,
+                DefaultCommandTimeout = 900, // fuck it, 15 minutes
             }.ToString();
         }
 

SharpChat/EventStorage/MariaDBEventStorage_Migrations.cs

@@ -30,6 +30,14 @@ namespace SharpChat.EventStorage {
 
             DoMigration("create_events_table", CreateEventsTable);
             DoMigration("allow_null_target", AllowNullTarget);
+            DoMigration("event_data_as_medium_blob", EventDataAsMediumBlob);
+        }
+
+        private void EventDataAsMediumBlob() {
+            RunCommand(
+                "ALTER TABLE `sqc_events`"
+                + " CHANGE COLUMN `event_data` `event_data` MEDIUMBLOB NULL DEFAULT NULL AFTER `event_flags`;"
+            );
         }
 
         private void AllowNullTarget() {

SharpChat/PacketHandlers/SendMessageHandler.cs

@@ -5,7 +5,9 @@ using SharpChat.EventStorage;
 using SharpChat.Packet;
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
+using System.Text;
 
 namespace SharpChat.PacketHandlers
 {
@@ -55,8 +57,10 @@ namespace SharpChat.PacketHandlers
                     ctx.Chat.UpdateUser(user, status: ChatUserStatus.Online);
 
                 int maxMsgLength = MaxMessageLength;
-                if(messageText.Length > maxMsgLength)
+                StringInfo messageTextInfo = new StringInfo(messageText);
-                    messageText = messageText[..maxMsgLength];
+                if(Encoding.UTF8.GetByteCount(messageText) > (maxMsgLength * 10)
+                    || messageTextInfo.LengthInTextElements > maxMsgLength)
+                    messageText = messageTextInfo.SubstringByTextElements(0, maxMsgLength);
 
                 messageText = messageText.Trim();
 

SharpChat/SharpChat.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

SharpChat/SharpChatWebSocketServer.cs

@@ -86,10 +86,11 @@ namespace SharpChat {
                     return;
                 }
 
-                if(EnabledSslProtocols == SslProtocols.None) {
+                // makes dotnet shut up, TLS is handled by NGINX anyway
-                    EnabledSslProtocols = SslProtocols.Tls;
+                // if(EnabledSslProtocols == SslProtocols.None) {
-                    FleckLog.Debug("Using default TLS 1.0 security protocol.");
+                //     EnabledSslProtocols = SslProtocols.Tls;
-                }
+                //     FleckLog.Debug("Using default TLS 1.0 security protocol.");
+                // }
             }
             ListenForClients();
             _config = config;

SharpChat/SharpId.cs

@@ -10,5 +10,4 @@ namespace SharpChat {
             => ((DateTimeOffset.Now.ToUnixTimeMilliseconds() - EPOCH) << 8)
                 | (ushort)(Interlocked.Increment(ref Counter) & 0xFFFF);
     }
-
 }