From 87bce990d9672427cfd707889a3aa1e4742337a2 Mon Sep 17 00:00:00 2001
From: Cenk Ergen <57065323+Cenngo@users.noreply.github.com>
Date: Thu, 2 Dec 2021 21:17:28 +0300
Subject: [PATCH] Add uppercase character check to SlashCommandBuilder and
 ApplicationCommandOptionProperties (#339)

---
 .../Entities/Interactions/ApplicationCommandOption.cs         | 4 ++++
 .../Interactions/SlashCommands/SlashCommandBuilder.cs         | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/Discord.Net.Core/Entities/Interactions/ApplicationCommandOption.cs b/src/Discord.Net.Core/Entities/Interactions/ApplicationCommandOption.cs
index 9a69d9d18..5857bac81 100644
--- a/src/Discord.Net.Core/Entities/Interactions/ApplicationCommandOption.cs
+++ b/src/Discord.Net.Core/Entities/Interactions/ApplicationCommandOption.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Text.RegularExpressions;
 
 namespace Discord
@@ -29,6 +30,9 @@ namespace Discord
                 if (!Regex.IsMatch(value, @"^[\w-]{1,32}$"))
                     throw new FormatException($"{nameof(value)} must match the regex ^[\\w-]{{1,32}}$");
 
+                if (value.Any(x => char.IsUpper(x)))
+                    throw new FormatException("Name cannot contain any uppercase characters.");
+
                 _name = value;
             }
         }
diff --git a/src/Discord.Net.Core/Entities/Interactions/SlashCommands/SlashCommandBuilder.cs b/src/Discord.Net.Core/Entities/Interactions/SlashCommands/SlashCommandBuilder.cs
index b4fc89cc2..074a52f32 100644
--- a/src/Discord.Net.Core/Entities/Interactions/SlashCommands/SlashCommandBuilder.cs
+++ b/src/Discord.Net.Core/Entities/Interactions/SlashCommands/SlashCommandBuilder.cs
@@ -40,6 +40,9 @@ namespace Discord
                 if (!Regex.IsMatch(value, @"^[\w-]{1,32}$"))
                     throw new ArgumentException("Command name cannot contain any special characters or whitespaces!", nameof(value));
 
+                if (value.Any(x => char.IsUpper(x)))
+                    throw new FormatException("Name cannot contain any uppercase characters.");
+
                 _name = value;
             }
         }