From 7800af830a5f56c2d9aba30d2fc925284253839b Mon Sep 17 00:00:00 2001
From: David Eagles <david.eagles@ivolve.com>
Date: Fri, 24 Sep 2021 11:09:17 +1000
Subject: [PATCH] Modified WMTS Resource URL generation to support hostnames
 that contain the layer name.

If the hostname contained the layer name (eg. https://layername.domain.com/layername/wmts) then the WMTS capabilities document contained an incorrect Resource URL because the hostname was stripped back to simply https://.  This modification simply looks for the last occurrence of the layer name instead of the first when forming the Resource URL.
---
 tileserver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tileserver.php b/tileserver.php
index 7397e01..d4e12d4 100755
--- a/tileserver.php
+++ b/tileserver.php
@@ -1031,7 +1031,7 @@ class Wmts extends Server {
         $maxMercatorZoom = max($maxMercatorZoom, $m['maxzoom']);
       }
 
-      $wmtsHost = substr($m['tiles'][0], 0, strpos($m['tiles'][0], $m['basename']));
+      $wmtsHost = substr($m['tiles'][0], 0, strrpos($m['tiles'][0], $m['basename']));
       $resourceUrlTemplate = $wmtsHost . $basename
               . '/{TileMatrix}/{TileCol}/{TileRow}';
       if(strlen($format) <= 4){