From 6405ee258204422276ca107f7214f16202d5e706 Mon Sep 17 00:00:00 2001
From: jesopo
Date: Wed, 16 Jan 2019 11:59:36 +0000
Subject: Support removal of modes without args that we don't know about in a
 way that doesn't push code execution down the wrong path (src/IRCChannel.py)

---
 src/IRCChannel.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/IRCChannel.py')

diff --git a/src/IRCChannel.py b/src/IRCChannel.py
index 10f43edb..843133e0 100644
--- a/src/IRCChannel.py
+++ b/src/IRCChannel.py
@@ -64,8 +64,9 @@ class Channel(IRCObject.Object):
             else:
                 self.modes[mode].add(arg.lower())
     def remove_mode(self, mode: str, arg: str=None):
-        if not arg and mode in self.modes:
-            del self.modes[mode]
+        if not arg:
+            if mode in self.modes:
+                del self.modes[mode]
         else:
             if mode in self.server.prefix_modes:
                 user = self.server.get_user(arg)
-- 
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