From e9f01b81d507e8a99dcc8bfb5e8d2a7c1c5e28e4 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Thu, 30 Jun 2022 17:25:43 +0300
Subject: [PATCH] Add validation for disappearing-timer command

---
 commands.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/commands.go b/commands.go
index 6ea0839..dbd557d 100644
--- a/commands.go
+++ b/commands.go
@@ -1143,10 +1143,15 @@ var cmdDisappearingTimer = &commands.FullHandler{
 		Description: "Set future messages in the room to disappear after the given time.",
 		Args:        "<off/1d/7d/90d>",
 	},
-	RequiresLogin: true,
+	RequiresLogin:  true,
+	RequiresPortal: true,
 }
 
 func fnDisappearingTimer(ce *WrappedCommandEvent) {
+	if len(ce.Args) == 0 {
+		ce.Reply("**Usage:** `disappearing-timer <off/1d/7d/90d>`")
+		return
+	}
 	duration, ok := whatsmeow.ParseDisappearingTimerString(ce.Args[0])
 	if !ok {
 		ce.Reply("Invalid timer '%s'", ce.Args[0])