From 2c586266ffe37c139b80197c2c7baaa8daea3e92 Mon Sep 17 00:00:00 2001
From: AsamK <asamk@gmx.de>
Date: Tue, 21 Jun 2022 13:55:34 +0200
Subject: [PATCH] Disallow sending an empty message

It would be ignored by the offical apps anyway
---
 src/main/java/org/asamk/signal/commands/SendCommand.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/org/asamk/signal/commands/SendCommand.java b/src/main/java/org/asamk/signal/commands/SendCommand.java
index 57c0c5e9..3fd00eaf 100644
--- a/src/main/java/org/asamk/signal/commands/SendCommand.java
+++ b/src/main/java/org/asamk/signal/commands/SendCommand.java
@@ -170,6 +170,11 @@ public class SendCommand implements JsonRpcLocalCommand {
             previews = List.of();
         }
 
+        if (messageText.isEmpty() && attachments.isEmpty() && sticker == null && quote == null) {
+            throw new UserErrorException(
+                    "Sending empty message is not allowed, either a message, attachment or sticker must be given.");
+        }
+
         try {
             var results = m.sendMessage(new Message(messageText,
                     attachments,