mirror of
https://gitlab.com/davical-project/davical.git
synced 2026-04-30 16:00:25 +00:00
100 lines
4.1 KiB
PHP
100 lines
4.1 KiB
PHP
<?php
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/**
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* Handle the FREE-BUSY-QUERY variant of REPORT
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*/
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include_once("iCalendar.php");
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include_once("RRule.php");
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$fbq_content = $xmltree->GetContent('URN:IETF:PARAMS:XML:NS:CALDAV:FREE-BUSY-QUERY');
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$fbq_start = $fbq_content[0]->GetAttribute('START');
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$fbq_end = $fbq_content[0]->GetAttribute('END');
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if ( ! ( isset($fbq_start) || isset($fbq_end) ) ) {
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$request->DoResponse( 400, 'All valid freebusy requests MUST contain a time-range filter' );
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}
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$where = " WHERE caldav_data.dav_name ~ ? ";
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if ( isset( $fbq_start ) ) {
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$where .= "AND (dtend >= ".qpg($fbq_start)."::timestamp with time zone ";
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$where .= "OR calculate_later_timestamp(".qpg($fbq_start)."::timestamp with time zone,dtend,rrule) >= ".qpg($fbq_start)."::timestamp with time zone) ";
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}
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if ( isset( $fbq_end ) ) {
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$where .= "AND dtstart <= ".qpg($fbq_end)."::timestamp with time zone ";
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}
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$where .= "AND caldav_data.caldav_type IN ( 'VEVENT', 'VFREEBUSY' ) ";
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$where .= "AND (calendar_item.transp != 'TRANSPARENT' OR calendar_item.transp IS NULL) ";
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$where .= "AND (calendar_item.status != 'CANCELLED' OR calendar_item.status IS NULL) ";
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$where .= "AND (calendar_item.class != 'PRIVATE' OR calendar_item.class IS NULL OR get_permissions($session->user_no,caldav_data.user_no) ~ 'A') "; // Must have 'all' permissions to see confidential items
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$busy = array();
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$busy_tentative = array();
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$sql = "SELECT caldav_data.caldav_data, calendar_item.rrule, calendar_item.transp, calendar_item.status, ";
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$sql .= "to_char(calendar_item.dtstart at time zone 'GMT',".iCalendar::SqlDateFormat().") AS start, ";
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$sql .= "to_char(calendar_item.dtend at time zone 'GMT',".iCalendar::SqlDateFormat().") AS finish ";
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$sql .= "FROM caldav_data INNER JOIN calendar_item USING(user_no, dav_name)".$where." ORDER BY dtstart, dtend";
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$qry = new PgQuery( $sql, "^".$request->path.$request->DepthRegexTail() );
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if ( $qry->Exec("REPORT",__LINE__,__FILE__) && $qry->rows > 0 ) {
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while( $calendar_object = $qry->Fetch() ) {
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if ( $calendar_object->transp != "TRANSPARENT" ) {
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switch ( $calendar_object->status ) {
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case "TENTATIVE":
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dbg_error_log( "REPORT", " FreeBusy: tentative appointment: %s, %s", $calendar_object->start, $calendar_object->finish );
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$busy_tentative[] = $calendar_object;
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break;
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case "CANCELLED":
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// Cancelled events are ignored
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break;
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default:
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dbg_error_log( "REPORT", " FreeBusy: Not transparent, tentative or cancelled: %s, %s", $calendar_object->start, $calendar_object->finish );
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$busy[] = $calendar_object;
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break;
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}
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}
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}
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}
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$freebusy = iCalendar::iCalHeader();
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$freebusy .= sprintf("BEGIN:VFREEBUSY\nDTSTAMP:%s\nDTSTART:%s\nDTEND:%s\n", date('Ymd\THis\Z'), $fbq_start, $fbq_end);
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foreach( $busy_tentative AS $k => $v ) {
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$start = new iCalDate($v->start);
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$duration = $start->DateDifference($v->finish);
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if ( $v->rrule != "" ) {
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$rrule = new RRule( $start, $v->rrule );
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while ( $date = $rrule->GetNext() ) {
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if ( ! $date->GreaterThan($fbq_start) ) continue;
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if ( $date->GreaterThan($fbq_end) ) break;
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$todate = clone($date);
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$todate->AddDuration($duration);
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$freebusy .= sprintf("FREEBUSY;FBTYPE=BUSY-TENTATIVE:%s/%s\n", $date->Render('Ymd\THis'), $todate->Render('Ymd\THis') );
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}
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}
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else {
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$freebusy .= sprintf("FREEBUSY;FBTYPE=BUSY-TENTATIVE:%s/%s\n", $start->Render('Ymd\THis'), $v->finish );
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}
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}
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foreach( $busy AS $k => $v ) {
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$start = new iCalDate($v->start);
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$duration = $start->DateDifference($v->finish);
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if ( $v->rrule != "" ) {
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$rrule = new RRule( $start, $v->rrule );
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while ( $date = $rrule->GetNext() ) {
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if ( ! $date->GreaterThan($fbq_start) ) continue;
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if ( $date->GreaterThan($fbq_end) ) break;
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$todate = clone($date);
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$todate->AddDuration($duration);
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$freebusy .= sprintf("FREEBUSY:%s/%s\n", $date->Render('Ymd\THis'), $todate->Render('Ymd\THis') );
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}
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}
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else {
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$freebusy .= sprintf("FREEBUSY:%s/%s\n", $start->Render('Ymd\THis'), $v->finish );
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}
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}
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$freebusy .= "END:VFREEBUSY\n";
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$freebusy .= iCalendar::iCalFooter();
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$request->DoResponse( 200, $freebusy, 'text/calendar' );
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// Won't return from that
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