From 0e141964e04fb6ba6279597ade6c13083e00aaed Mon Sep 17 00:00:00 2001
From: Henning Bostelmann <henning.bostelmann@york.ac.uk>
Date: Fri, 13 Jul 2018 18:25:28 +0100
Subject: [PATCH] MDL-62914 Calendar: handle TZURL iCal property

---
 lib/bennu/iCalendar_components.php |  1 +
 lib/bennu/iCalendar_properties.php | 11 +++++++++++
 lib/bennu/readme_moodle.txt        |  3 ++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/bennu/iCalendar_components.php b/lib/bennu/iCalendar_components.php
index 83a1e5f573f..9a05677726b 100644
--- a/lib/bennu/iCalendar_components.php
+++ b/lib/bennu/iCalendar_components.php
@@ -686,6 +686,7 @@ class iCalendar_standard extends iCalendar_component {
             'RDATE'   =>  RFC2445_OPTIONAL,
             'RRULE'   =>  RFC2445_OPTIONAL,
             'TZNAME'   =>  RFC2445_OPTIONAL,
+            'TZURL'   =>  RFC2445_OPTIONAL,
             RFC2445_XNAME   =>  RFC2445_OPTIONAL,
         ); 
         parent::__construct();
diff --git a/lib/bennu/iCalendar_properties.php b/lib/bennu/iCalendar_properties.php
index 6a7a562c249..a99f7626427 100644
--- a/lib/bennu/iCalendar_properties.php
+++ b/lib/bennu/iCalendar_properties.php
@@ -1466,7 +1466,18 @@ class iCalendar_property_tzoffsetto extends iCalendar_property {
     }
 }
 
+class iCalendar_property_tzurl extends iCalendar_property {
 
+    var $name        = 'TZURL';
+    var $val_type    = RFC2445_TYPE_URI;
+
+    function __construct() {
+        parent::__construct();
+        $this->valid_parameters = array(
+                RFC2445_XNAME => RFC2445_OPTIONAL
+        );
+    }
+}
 
 #######################
 /*
diff --git a/lib/bennu/readme_moodle.txt b/lib/bennu/readme_moodle.txt
index f95711aaf98..0a22a6b12cc 100644
--- a/lib/bennu/readme_moodle.txt
+++ b/lib/bennu/readme_moodle.txt
@@ -25,4 +25,5 @@ Changelog
 6/ MDL-49032: fixed rfc2445_fold() to fix incorrect RFC2445_WSP definition (16 Sep 2015)
 7/ added timestamp_to_date function to support zero duration events (16 Sept 2015)
 8/ Updated \iCalendar_event::invariant_holds() to allow for same dtstart and dtend timestamps (13 July 2017)
-9/ MDL-60391: replace create_function() with lambda function for PHP 7.2 compatibility (13 Oct 2017)
\ No newline at end of file
+9/ MDL-60391: replace create_function() with lambda function for PHP 7.2 compatibility (13 Oct 2017)
+10/ MDL-62914: added handling for TZURL property (13 July 2018) 
\ No newline at end of file