added jitsi link

RUN patch -u ${BASE_DIR}/lib/private/User/Manager.php -i ${TMP_PATCH_DIR}/025-optimize-get-by-email.patch

RUN patch -u ${BASE_DIR}/apps/dav/lib/Connector/Sabre/Principal.php -i ${TMP_PATCH_DIR}/027-displayname-user-leak-dav.patch

RUN patch -u ${BASE_DIR}/apps/dav/lib/HookManager.php -i ${TMP_PATCH_DIR}/028-default-task-calendar.patch

RUN patch -u ${BASE_DIR}/3rdparty/sabre/dav/lib/CalDAV/Plugin.php -i ${TMP_PATCH_DIR}/029-add-jitsi-link.patch

RUN rm -rf ${TMP_PATCH_DIR}

RUN curl -fsSL -o ldap_write_support.tar.gz \

This patch creates a jitsi link in location if it is empty and attendee is added

--- apps/dav/lib/CalDAV/CalDavBackend.php	2023-07-24 14:32:46.692916758 +0530

+++ apps/dav/lib/CalDAV/CalDavBackend-new.php	2023-07-24 15:42:17.292918142 +0530

@@ -1217,6 +1217,23 @@

 	 * @return string

 	 */

 	public function createCalendarObject($calendarId, $objectUri, $calendarData, $calendarType = self::CALENDAR_TYPE_CALENDAR) {

--- 3rdparty/sabre/dav/lib/CalDAV/Plugin.php	2023-07-25 13:25:07.893734832 +0530

+++ 3rdparty/sabre/dav/lib/CalDAV/Plugin-new.php	2023-07-25 13:26:31.933735174 +0530

@@ -787,6 +787,20 @@

             $data = stream_get_contents($data);

         }

+        // If attendee exist and

+		if (strpos($calendarData, 'ATTENDEE;') !== false && strpos($calendarData, 'LOCATION:') === false) {

+        if (strpos($data, 'ATTENDEE;') !== false && strpos($data, 'LOCATION:') === false) {

+            $url = 'https://meet.jit.si/';

+            $chars = '0123456789abcdefghijklmnopqrstuvwxyz';

+            $result = '';

+            for ($i = $length; $i > 0; --$i) {

+                    $result .= $chars[rand(0, strlen($chars) - 1)];

+            }

+

+			$todaynow = new DateTime();

+			$randomString = $result . $todaynow->format('d') . $todaynow->format('m') . substr($todaynow->format('Y'), -2);

+

+            $randomString = $result . date('dmy');

+            $url = $url . $randomString;

+			$calendarData = preg_replace('/(SUMMARY:[^\r\n]*)/', "$1\nLOCATION: $url", $calendarData);

+            $data = preg_replace('/(SUMMARY:[^\r\n]*)/', "$1\nLOCATION: $url", $data);

+        }

+

 		$extraData = $this->getDenormalizedData($calendarData);

         $before = $data;

 		// Try to detect duplicates

         try {