From a6bd561c7c6ccd28e271748e5bfd943b917e4083 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Mon, 27 Nov 2017 18:42:00 +0200
Subject: [PATCH] Allow disabling (prefixed) commands in non-management rooms

---
 example-config.yaml | 1 +
 src/app.js          | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/example-config.yaml b/example-config.yaml
index 75cff798..44b3a9c2 100644
--- a/example-config.yaml
+++ b/example-config.yaml
@@ -29,6 +29,7 @@ bridge:
     # Bridge management command configuration
     commands:
         # The prefix for all management commands.
+        # Can be removed to disable management commands in rooms with more than two users.
         prefix: "!tg"
 
         # Enables the !tg api ... commands for debugging.
diff --git a/src/app.js b/src/app.js
index be9f0617..30b4e3ee 100644
--- a/src/app.js
+++ b/src/app.js
@@ -501,15 +501,15 @@ class MautrixTelegram {
 			}
 		}
 		const cmdprefix = this.config.bridge.commands.prefix
-		if (isManagement || evt.content.body.startsWith(`${cmdprefix} `)) {
+		if (isManagement || (cmdprefix && evt.content.body.startsWith(`${cmdprefix} `))) {
 			const prefixLength = cmdprefix.length + 1
-			if (evt.content.body.startsWith(`${cmdprefix} `)) {
+			if (cmdprefix && evt.content.body.startsWith(`${cmdprefix} `)) {
 				evt.content.body = evt.content.body.substr(prefixLength)
 			}
 			const args = evt.content.body.split(" ")
 			const command = args.shift()
 			const replyFunc = (reply, { allowHTML = false, markdown = true } = {}) => {
-				reply = reply.replace("$cmdprefix", cmdprefix)
+				reply = reply.replace("$cmdprefix", cmdprefix || "")
 				if (!markdown && !allowHTML) {
 					reply = escapeHTML(reply)
 				}