From e94d69d3f77aeb669d91fabeb8cfd38ba68dfbae Mon Sep 17 00:00:00 2001
From: Florian Schlichting <fsfs@debian.org>
Date: Sat, 8 Apr 2017 13:54:49 +0200
Subject: [PATCH] do not output unescaped XML special characters in if-match
 error message (fixes: #113)

---
 inc/CalDAVRequest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/CalDAVRequest.php b/inc/CalDAVRequest.php
index af4224f3..fd2e323c 100644
--- a/inc/CalDAVRequest.php
+++ b/inc/CalDAVRequest.php
@@ -1149,7 +1149,7 @@ EOSQL;
         * entity exists, the server MUST NOT perform the requested method, and
         * MUST return a 412 (Precondition Failed) response.
         */
-        $this->PreconditionFailed(412,'if-match',sprintf('Existing resource ETag of <<%s>> does not match <<%s>>', $dest_etag, $this->etag_if_match) );
+        $this->PreconditionFailed(412,'if-match',sprintf('Existing resource ETag of %s does not match %s', $dest_etag, $this->etag_if_match) );
       }
       else if ( isset($this->etag_none_match) && $this->etag_none_match != ''
                    && ($this->etag_none_match == $dest_etag || $this->etag_none_match == '*') ) {