mirror of
https://gitlab.com/davical-project/davical.git
synced 2026-02-20 04:33:34 +00:00
119 lines
4.7 KiB
PHP
119 lines
4.7 KiB
PHP
<?php
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require_once("iCalendar.php");
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include_once("RRule.php");
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if ( isset($request->by_email) ) {
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$where = "WHERE caldav_data.user_no = $request->user_no ";
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}
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else {
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$where = "WHERE caldav_data.user_no = $request->user_no AND caldav_data.dav_name ~ ".qpg("^".$request->path)." ";
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}
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$begindate = new iCalDate($fb_start);
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if ( isset($fb_end) && $fb_end != '' ) {
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$enddate = new iCalDate($fb_end);
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}
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else {
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$enddate = clone( $begindate );
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$enddate->AddDuration( $fb_period );
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}
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if ( isset($fb_end) && $fb_end != '' ) {
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$sql_end = qpg($fb_end);
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}
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else {
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$sql_period = str_replace( 'P', '', $fb_period );
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$sql_period = str_replace( 'W', ' weeks ', $sql_period );
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$sql_period = str_replace( 'D', ' days ', $sql_period );
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$sql_period = str_replace( 'T', ' ', $sql_period );
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$sql_period = str_replace( 'H', ' hours ', $sql_period );
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$sql_period = str_replace( 'M', ' minutes ', $sql_period );
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$sql_period = str_replace( 'S', ' seconds ', $sql_period );
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$sql_end = "( TIMESTAMP " . qpg($fb_start) . " + ( INTERVAL ".qpg($sql_period).") )";
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}
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$where .= "AND rrule_event_overlaps( dtstart, dtend, rrule, ".qpg($fb_start).", $sql_end ) ";
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$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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if ( ! $request->AllowedTo('all') ) {
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$where .= "AND (calendar_item.class != 'PRIVATE' OR calendar_item.class IS NULL) ";
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}
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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::SqlUTCFormat().") AS start, ";
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$sql .= "to_char(calendar_item.dtend at time zone 'GMT',".iCalendar::SqlUTCFormat().") AS finish ";
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$sql .= "FROM caldav_data INNER JOIN calendar_item USING(dav_id,user_no,dav_name)".$where;
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if ( isset($c->strict_result_ordering) && $c->strict_result_ordering ) $sql .= " ORDER BY dav_id";
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// echo $sql. "\n";
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$qry = new PgQuery( $sql );
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if ( $qry->Exec("freebusy",__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( "freebusy", " 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( "freebusy", " 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\n%s:%s\n", date('Ymd\THis\Z'), $begindate->RenderGMT(), (isset($fb_period) ? "DURATION" : "DTEND"), (isset($fb_period) ? $fb_period : $enddate->RenderGMT()));
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foreach( $busy_tentative AS $k => $v ) {
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$start = new iCalDate($v->start);
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$finish = new iCalDate($v->finish);
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$duration = $start->DateDifference($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($begindate) ) ) continue;
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if ( $date->GreaterThan($enddate) ) 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->RenderGMT(), $todate->RenderGMT() );
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}
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}
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else {
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$freebusy .= sprintf("FREEBUSY;FBTYPE=BUSY-TENTATIVE:%s/%s\n", $start->RenderGMT(), $finish->RenderGMT() );
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}
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}
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foreach( $busy AS $k => $v ) {
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$start = new iCalDate($v->start);
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$finish = new iCalDate($v->finish);
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$duration = $start->DateDifference($finish);
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if ( $v->rrule != "" ) {
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//debugging $freebusy .= sprintf("--->%s -- %s vs %s", $v->rrule, $v->start, $start->RenderGMT());
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$rrule = new RRule( $start, $v->rrule );
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while ( $date = $rrule->GetNext() ) {
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if ( ! ($date->GreaterThan($begindate) ) ) continue;
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if ( $date->GreaterThan($enddate) ) 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->RenderGMT(), $todate->RenderGMT() );
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}
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}
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else {
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$freebusy .= sprintf("FREEBUSY:%s/%s\n", $start->RenderGMT(), $finish->RenderGMT() );
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}
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}
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$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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