From ea2a75d86b61d0790a5d937c6050f5e0869819e3 Mon Sep 17 00:00:00 2001
From: Andrew Ruthven <andrew@etc.gen.nz>
Date: Sun, 30 Apr 2023 19:41:28 +1200
Subject: [PATCH] Confidential resources should retain more reccurence
 information

To allow for correct expansion of recurring confidential information
we also need to retain EXDATE, RECURRENCE-ID and SEQUENCE, otherwise
client side expansion may well be wrong.

Closes #291
---
 inc/caldav-GET-functions.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/inc/caldav-GET-functions.php b/inc/caldav-GET-functions.php
index 7b002142..57d52aab 100644
--- a/inc/caldav-GET-functions.php
+++ b/inc/caldav-GET-functions.php
@@ -22,6 +22,9 @@ function obfuscated_event( $icalendar ) {
   $confidential->AddProperty( 'CLASS', 'CONFIDENTIAL' );
   $confidential->SetProperties( $icalendar->GetProperties('DTSTART'), 'DTSTART' );
   $confidential->SetProperties( $icalendar->GetProperties('RRULE'), 'RRULE' );
+  $confidential->SetProperties( $icalendar->GetProperties('EXDATE'), 'EXDATE' );
+  $confidential->SetProperties( $icalendar->GetProperties('RECURRENCE-ID'), 'RECURRENCE-ID' );
+  $confidential->SetProperties( $icalendar->GetProperties('SEQUENCE'), 'SEQUENCE' );
   $confidential->SetProperties( $icalendar->GetProperties('DURATION'), 'DURATION' );
   $confidential->SetProperties( $icalendar->GetProperties('DTEND'), 'DTEND' );
   $confidential->SetProperties( $icalendar->GetProperties('UID'), 'UID' );