From 74e1f983f0383b58d946bd2a354f0ab71d540485 Mon Sep 17 00:00:00 2001
From: Matti R <matti@mdranta.net>
Date: Thu, 7 Dec 2017 23:59:00 -0500
Subject: [PATCH] allow matrix to send localpart of username

---
 gateway/gateway.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gateway/gateway.go b/gateway/gateway.go
index 8b1223f0..076424d4 100644
--- a/gateway/gateway.go
+++ b/gateway/gateway.go
@@ -287,6 +287,12 @@ func (gw *Gateway) modifyUsername(msg config.Message, dest *bridge.Bridge) strin
 	nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
 	nick = strings.Replace(nick, "{BRIDGE}", br.Name, -1)
 	nick = strings.Replace(nick, "{PROTOCOL}", br.Protocol, -1)
+	if br.Protocol == "matrix" {
+		nick_parts := strings.Split(msg.Username, ":")
+		nick = strings.Replace(nick, "{LOCALPART}", nick_parts[0], -1)
+	} else {
+		nick = strings.Replace(nick, "{LOCALPART}", msg.Username, -1)
+	}
 	return nick
 }