davical/inc/caldav-OPTIONS.php
2007-10-26 21:14:12 +13:00

76 lines
2.6 KiB
PHP

<?php
/**
* CalDAV Server - handle OPTIONS method
*
* @package rscds
* @subpackage caldav
* @author Andrew McMillan <andrew@catalyst.net.nz>
* @copyright Catalyst .Net Ltd
* @license http://gnu.org/copyleft/gpl.html GNU GPL v2
*/
dbg_error_log("OPTIONS", "method handler");
if ( ! $request->AllowedTo('read') ) {
$request->DoResponse( 403, translate("You may not access that calendar") );
}
$exists = false;
$is_calendar = false;
if ( $request->path == '/' ) {
$exists = true;
}
else {
if ( preg_match( '#^/[^/]+/$#', $request->path) ) {
$sql = "SELECT user_no, '/' || username || '/' AS dav_name, md5( '/' || username || '/') AS dav_etag, ";
$sql .= "updated AS created, fullname AS dav_displayname, FALSE AS is_calendar FROM usr WHERE user_no = $request->user_no ; ";
}
else {
$sql = "SELECT user_no, dav_name, dav_etag, created, dav_displayname, is_calendar FROM collection WHERE user_no = $request->user_no AND dav_name = ".qpg($request->path);
}
$qry = new PgQuery($sql );
if( $qry->Exec("OPTIONS",__LINE__,__FILE__) && $qry->rows > 0 && $collection = $qry->Fetch() ) {
$is_calendar = ($collection->is_calendar == 't');
$exists = true;
}
elseif ( $c->collections_always_exist ) {
$exists = true;
// Possibly this should be another setting, but it seems unlikely that something that
// can't deal with collections would issue MKCALENDAR or PROPPATCH commands.
$is_calendar = true;
}
}
if ( !$exists ) {
$request->DoResponse( 404, translate("No collection found at that location.") );
}
/**
* As yet we only support quite a limited range of options. When we see clients looking
* for more than this we will work to support them further. So we can see clients trying
* to use such methods there is a configuration option to override and allow lying about
* what is available.
*/
if ( isset($c->override_allowed_methods) )
$allowed = $c->override_allowed_methods;
else {
$allowed = "OPTIONS, GET, HEAD, PUT, DELETE, PROPFIND, MKCOL, MKCALENDAR, LOCK, UNLOCK, REPORT, PROPPATCH";
}
header( "Allow: $allowed");
/**
* From reading the "Scheduling Extensions to CalDAV" draft I don't think that we will
* be doing 'calendar-schedule' any time soon. The current spec is at:
* http://www.ietf.org/internet-drafts/draft-desruisseaux-caldav-sched-03.txt
*
* access-control is rfc3744, so we will say we do it, but I doubt if we do it
* in all (or even much of) it's glory really.
*/
$dav = "1, 2, access-control, calendar-access";
header( "Allow: $allowed");
header( "DAV: $dav");
// header( "DAV: 1, 2, access-control, calendar-access, calendar-schedule");
$request->DoResponse( 200, "" );
?>