go: discord/modules: Set limit for validation code length

GoBot/discord/config/translate.go

@@ -82,6 +82,7 @@ const InviteSuccessNew = "这个验证码现在属于你了。请好好保管并
 const InviteSuccessAlreadyOwn = "该验证码原本就已经属于你。请直接交给你要邀请的人吧。\nThe validation code already belongs to you. You can pass it on to a user you want to invite."
 const ErrorInviteTitle = "制造验证码失败 Create Validation Code Error"
 const ErrorInviteCodeContainsSpace = "所制造的验证码不得有任何空格。\nThe validation code to create cannot contain any spaces."
+const ErrorInviteCodeTooLong = "所制造的验证码必须少于512个字符。\nThe validation code cannot be longer than 512 characters."
 const ErrorInviteOwnedByOthers = "这个验证码已被其他会员注册。请使用别的验证码。\nThis validation code is already registered. Please try another one."
 const ErrorInviteExistAndUsed = "这个验证码已被使用过。请使用别的验证码。\nThis validation code has already been used. Please try another one."
 

GoBot/discord/modules/invite.go

@@ -25,6 +25,11 @@ var createInvite = enforceDM(memberFilter(true, enforceArgumentCount(
 				Send(s, m.ChannelID)
 			return
 		}
+		if len(command[1]) > 512 {
+			message.InitNewEmbed(config.ErrorInviteTitle, config.ErrorInviteCodeTooLong, config.ErrorColour).
+				Send(s, m.ChannelID)
+			return
+		}
 
 		err := db.SetInviteOwner(command[1], m.Author.ID)
 		switch err {