function get_freebusy($path_match, $range_start, $range_end, $bin_privs = null)
{
global $request, $c;
$debugging = false;
// if ( $debugging ) {
// printf( "Path: %s\n", $path_match );
// print_r( $range_start );
// print_r( $range_end );
// }
if (!isset($bin_privs)) {
$bin_privs = $request->Privileges();
}
if (!isset($range_start) || !isset($range_end)) {
$request->DoResponse(400, 'All valid freebusy requests MUST contain a time-range filter');
}
$params = array(':path_match' => $path_match, ':start' => $range_start->UTC(), ':end' => $range_end->UTC());
$where = ' WHERE caldav_data.dav_name ~ :path_match ';
$where .= 'AND rrule_event_overlaps( dtstart, dtend, rrule, :start, :end) ';
$where .= "AND caldav_data.caldav_type IN ( 'VEVENT', 'VTODO' ) ";
$where .= "AND (calendar_item.transp != 'TRANSPARENT' OR calendar_item.transp IS NULL) ";
$where .= "AND (calendar_item.status != 'CANCELLED' OR calendar_item.status IS NULL) ";
$where .= "AND collection.is_calendar AND collection.schedule_transp = 'opaque' ";
if ($bin_privs != privilege_to_bits('all')) {
$where .= "AND (calendar_item.class != 'PRIVATE' OR calendar_item.class IS NULL) ";
}
$fbtimes = array();
$sql = 'SELECT caldav_data.caldav_data, calendar_item.rrule, calendar_item.transp, calendar_item.status, ';
$sql .= "to_char(calendar_item.dtstart at time zone 'GMT'," . AWLDatabase::SqlUTCFormat . ') AS start, ';
$sql .= "to_char(calendar_item.dtend at time zone 'GMT'," . AWLDatabase::SqlUTCFormat . ') AS finish, ';
$sql .= "calendar_item.class, calendar_item.dav_id ";
$sql .= 'FROM caldav_data INNER JOIN calendar_item USING(dav_id,user_no,dav_name,collection_id) ';
$sql .= 'INNER JOIN collection USING(collection_id)';
$sql .= $where;
if (isset($c->strict_result_ordering) && $c->strict_result_ordering) {
$sql .= ' ORDER BY dav_id';
}
$qry = new AwlQuery($sql, $params);
if ($qry->Exec("REPORT", __LINE__, __FILE__) && $qry->rows() > 0) {
while ($calendar_object = $qry->Fetch()) {
$extra = '';
if ($calendar_object->status == 'TENTATIVE') {
$extra = ';BUSY-TENTATIVE';
} else {
if (isset($c->_workaround_client_freebusy_bug) && $c->_workaround_client_freebusy_bug) {
$extra = ';BUSY';
}
}
// if ( $debugging ) {
// $extra = ';'.$calendar_object->dav_id;
// }
// dbg_error_log( "REPORT", " FreeBusy: Not transparent, tentative or cancelled: %s, %s, %s", $calendar_object->start, $calendar_object->finish, $calendar_object->class );
$ics = new vComponent($calendar_object->caldav_data);
$expanded = expand_event_instances($ics, $range_start, $range_end);
$expansion = $expanded->GetComponents(array('VEVENT' => true, 'VTODO' => true, 'VJOURNAL' => true));
// if ( $debugging ) echo "=================== $calendar_object->dav_id ========================\n";
$dtstart_type = 'DTSTART';
foreach ($expansion as $k => $v) {
// if ( $debugging ) print $k."\n".$v->Render();
$start_date = $v->GetProperty($dtstart_type);
if (!isset($start_date) && $v->GetType() != 'VTODO') {
$dtstart_type = 'DUE';
$start_date = $v->GetProperty($dtstart_type);
}
$start_date = new RepeatRuleDateTime($start_date);
$duration = $v->GetProperty('DURATION');
$duration = !isset($duration) ? 'P1D' : $duration->Value();
$end_date = clone $start_date;
$end_date->modify($duration);
if ($end_date == $start_date || $end_date < $range_start || $start_date > $range_end) {
// if ( $debugging )
// echo "-----------------------------------------------------\n";
continue;
}
// if ( $debugging )
// echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++\n";
$thisfb = $start_date->UTC() . '/' . $end_date->UTC() . $extra;
array_push($fbtimes, $thisfb);
}
}
}
$freebusy = new vComponent();
$freebusy->setType('VFREEBUSY');
$freebusy->AddProperty('DTSTAMP', date('Ymd\\THis\\Z'));
$freebusy->AddProperty('DTSTART', $range_start->UTC());
$freebusy->AddProperty('DTEND', $range_end->UTC());
sort($fbtimes);
foreach ($fbtimes as $k => $v) {
$text = explode(';', $v, 2);
$freebusy->AddProperty('FREEBUSY', $text[0], isset($text[1]) ? array('FBTYPE' => $text[1]) : null);
}
return $freebusy;
}
