From c530fb9156e3c8248e4a47316f5ac72e221d5811 Mon Sep 17 00:00:00 2001
From: Florent Le Coz <louiz@louiz.org>
Date: Sat, 31 May 2014 17:24:18 +0200
Subject: Do not send an item-not-found presence from an invalid JID

---
 src/xmpp/xmpp_component.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xmpp/xmpp_component.cpp b/src/xmpp/xmpp_component.cpp
index 81a3b4f..3ec043c 100644
--- a/src/xmpp/xmpp_component.cpp
+++ b/src/xmpp/xmpp_component.cpp
@@ -640,7 +640,10 @@ void XmppComponent::send_invalid_room_error(const std::string& muc_name,
                                             const std::string& to)
 {
   Stanza presence("presence");
-  presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick;
+  if (!muc_name.empty())
+    presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick;
+  else
+    presence["from"] = this->served_hostname;
   presence["to"] = to;
   presence["type"] = "error";
   XmlNode x("x");
-- 
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