simplify implementation + and actually make it work in this use case

DisCatSharp/Utilities.cs

@@ -97,54 +97,16 @@ static Utilities()
 	/// </summary>
 	/// <param name="str">The string to remove the tokens from.</param>
 	/// <returns>A new string with the tokens replaced with <c>{KEY_TOKEN}</c></returns>
-	public static string StripTokens(string str)
+	public static string? StripTokens(string? str)
 	{
 		if (string.IsNullOrWhiteSpace(str))
 			return str;
 
-		var parts = str.Split('/');
+		str = Regex.Replace(str, @"([a-zA-Z0-9]{68})", "{WEBHOOK_TOKEN}");
+		str = Regex.Replace(str, @"^(.+):\d+?:[a-zA-Z0-9]{128}$", "{INTERACTION_TOKEN}");
+		str = Regex.Replace(str, @"(mfa\.[a-z0-9_-]{20,})|((?<botid>[a-z0-9_-]{23,28})\.(?<creation>[a-z0-9_-]{6,7})\.(?<enc>[a-z0-9_-]{27,}))", "{ACCOUNT_TOKEN}");
 
-		// calculate the base64 data size
-		var base64Size = parts.Max(x =>
-		{
-			var padding = x.EndsWith("==", StringComparison.Ordinal)
-				? 2
-				: x.EndsWith("=", StringComparison.Ordinal)
-					? 1
-					: 0;
-			return (Encoding.UTF8.GetByteCount(x) * (3 / 4)) - padding;
-		});
-
-		// allocate a buffer for any base64 decoding.
-		var dest = base64Size <= 1024 ? stackalloc byte[base64Size] : new byte[base64Size];
-
-		var isWebhook = parts.Contains("webhooks") || parts.Contains("webhook");
-
-		for (var i = 0; i < parts.Length; i++)
-		{
-			var part = parts[i];
-
-			if (isWebhook && Regex.IsMatch(part, @"([a-zA-Z0-9]{68})"))
-			{
-				parts[i] = "{WEBHOOK_TOKEN}";
-				continue;
-			}
-
-			if (!Convert.TryFromBase64String(part, dest, out var count))
-				continue;
-
-			var b64Content = Encoding.UTF8.GetString(dest[..count]);
-
-			var tokenInnersMatch = Regex.Match(b64Content, @"^(.+):\d+?:[a-zA-Z0-9]{128}$");
-
-			if (!tokenInnersMatch.Success)
-				continue;
-
-			// replaces the token with the {KEY}_TOKEN, ex 'interaction:USERID:TOKEN' is replaced as 'INTERACTION_TOKEN'
-			parts[i] = $"{{{tokenInnersMatch.Groups[1].Value.ToUpperInvariant()}_TOKEN}}";
-		}
-
-		return string.Join('/', parts);
+		return str;
 	}
 
 	/// <summary>