From aef26b1cc335603def29961419316880b8160e28 Mon Sep 17 00:00:00 2001
From: Michel Fedde <git@iedsoftworks.com>
Date: Tue, 27 May 2025 21:58:43 +0200
Subject: [PATCH] Adds invalid character sequences to group names

---
 source/Discord/Commands/Groups.ts | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/source/Discord/Commands/Groups.ts b/source/Discord/Commands/Groups.ts
index f9cb3df..bc03974 100644
--- a/source/Discord/Commands/Groups.ts
+++ b/source/Discord/Commands/Groups.ts
@@ -27,13 +27,19 @@ import {IconCache} from "../../Icons/IconCache";
 import {PlaydateRepository} from "../../Repositories/PlaydateRepository";
 import playdate from "../../Database/tables/Playdate";
 import Commands from "./Commands";
+import Groups from "../../Database/tables/Groups";
 
 export class GroupCommand implements Command, ChatInteractionCommand, AutocompleteCommand {
     private static GOODBYE_MESSAGES: string[] = [
         'Sad to see you go.',
         'May your next adventure be fruitful.',
         'I hope, I served you well.',
-        'I wish you, good luck on your next adventures.',
+        'I wish you and your group good luck on your next adventures.',
+    ]
+    
+    private static INVALID_CHARACTER_SEQUENCES: string[] = [
+        "http://",
+        "https://"
     ]
     
     definition(): SlashCommandBuilder {
@@ -121,6 +127,11 @@ export class GroupCommand implements Command, ChatInteractionCommand, Autocomple
                 "Add yourself to the group or ask your admin to do so."
             );
         }
+    
+        const validName = this.validateGroupName(name);
+        if (name !== true) {
+            throw new UserError(`Your group name contains one or more invalid character sequences: ${validName}`)
+        }
         
         const group: GroupModel = {
             id: -1,
@@ -139,6 +150,18 @@ export class GroupCommand implements Command, ChatInteractionCommand, Autocomple
         
         interaction.reply({content: `:white_check_mark: Created group \`${name}\``, flags: MessageFlags.Ephemeral })
     }
+    
+    private validateGroupName(name: string): true|string{
+        const lowercaseName = name.toLowerCase();
+        for (let invalidcharactersequence of GroupCommand.INVALID_CHARACTER_SEQUENCES) {
+            if (!lowercaseName.includes(invalidcharactersequence)) {
+                continue
+            }
+            
+            return invalidcharactersequence
+        }
+        return true;
+    }
 
     private list(interaction: ChatInputCommandInteraction) {
         const repo = Container.get<GroupRepository>(GroupRepository.name);