# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1650630572 -7200
# Node ID 13070c6a7ce866fc4c53f57cebfac63ae0ad314f
# Parent  65438e4ba563101cf3c1825b84b4601bbb38c82b
mod_http_muc_log: Fix exception on lack of trailing slash in room path

A request to /room leads to the match call returning nil which in turn
calls nodeprep(nil). In Prosody 0.11.x this does nothing and simply
returns the nil, while in 0.12 it is an error.

Now it redirects to the calendar view at /room/ - even for non-existant
rooms.

Discovered at a deployment with http_paths = { muc_log = "/" } and
requests to /robots.txt and similar, which now result in a uses redirect
before returning 404.

diff -r 65438e4ba563 -r 13070c6a7ce8 mod_http_muc_log/mod_http_muc_log.lua
--- a/mod_http_muc_log/mod_http_muc_log.lua	Mon Apr 18 23:02:04 2022 +0200
+++ b/mod_http_muc_log/mod_http_muc_log.lua	Fri Apr 22 14:29:32 2022 +0200
@@ -275,6 +275,10 @@
 	local request, response = event.request, event.response;
 
 	local room, date = path:match("^([^/]+)/([^/]*)/?$");
+	if not room then
+		response.headers.location = url.build({ path = path .. "/" });
+		return 303;
+	end
 	room = nodeprep(room);
 	if not room then
 		return 400;