mirror of
https://gitlab.com/davical-project/davical.git
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187 lines
7.3 KiB
PHP
187 lines
7.3 KiB
PHP
<?php
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/**
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* CalDAV Server - handle MKCALENDAR method
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*
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* @package davical
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* @subpackage caldav
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* @author Andrew McMillan <andrew@mcmillan.net.nz>
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* @copyright Catalyst IT Ltd, Morphoss Ltd - http://www.morphoss.com/
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* @license http://gnu.org/copyleft/gpl.html GNU GPL v2
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*/
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dbg_error_log("MKCALENDAR", "method handler");
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if ( ! $request->AllowedTo('mkcalendar') ) {
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$request->DoResponse( 403, translate("You may not create a calendar there.") );
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}
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$displayname = $request->path;
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// Enforce trailling '/' on collection name
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if ( ! preg_match( '#/$#', $request->path ) ) {
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dbg_error_log( "MKCALENDAR", "Add trailling '/' to '%s'", $request->path);
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$request->path .= '/';
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}
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$parent_container = '/';
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if ( preg_match( '#^(.*/)([^/]+)(/)?$#', $request->path, $matches ) ) {
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$parent_container = $matches[1];
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$displayname = $matches[2];
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}
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$failure = array();
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$propertysql = "";
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if ( isset($request->xml_tags) ) {
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/**
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* The MKCALENDAR request may contain XML to set some DAV properties
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*/
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$position = 0;
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$xmltree = BuildXMLTree( $request->xml_tags, $position);
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// echo $xmltree->Render();
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if ( $xmltree->GetTag() != "urn:ietf:params:xml:ns:caldav:mkcalendar" ) {
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$request->DoResponse( 403, "The supplied XML is not a 'urn:ietf:params:xml:ns:caldav:mkcalendar' document" );
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}
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$setprops = $xmltree->GetPath("/urn:ietf:params:xml:ns:caldav:mkcalendar/DAV::set/DAV::prop/*");
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$propertysql = "";
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foreach( $setprops AS $k => $setting ) {
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$tag = $setting->GetTag();
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$content = $setting->RenderContent();
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switch( $tag ) {
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case 'DAV::displayname':
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$displayname = $content;
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/**
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* TODO: This is definitely a bug in SOHO Organizer and we probably should respond
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* with an error, rather than silently doing what they *seem* to want us to do.
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*/
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if ( preg_match( '/^SOHO.Organizer.6\./', $_SERVER['HTTP_USER_AGENT'] ) ) {
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dbg_error_log( "MKCALENDAR", "Displayname is '/' to '%s'", $request->path);
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$parent_container = $request->path;
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$request->path .= $content . '/';
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}
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$success[$tag] = 1;
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break;
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case 'urn:ietf:params:xml:ns:caldav:supported-calendar-component-set': /** Ignored, since we will support all component types */
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case 'urn:ietf:params:xml:ns:caldav:supported-calendar-data': /** Ignored, since we will support iCalendar 2.0 */
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case 'urn:ietf:params:xml:ns:caldav:calendar-data': /** Ignored, since we will support iCalendar 2.0 */
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case 'urn:ietf:params:xml:ns:caldav:max-resource-size': /** Ignored, since we will support arbitrary size */
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case 'urn:ietf:params:xml:ns:caldav:min-date-time': /** Ignored, since we will support arbitrary time */
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case 'urn:ietf:params:xml:ns:caldav:max-date-time': /** Ignored, since we will support arbitrary time */
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case 'urn:ietf:params:xml:ns:caldav:max-instances': /** Ignored, since we will support arbitrary instances */
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case 'DAV::resourcetype': /** Any value for resourcetype is ignored */
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$success[$tag] = 1;
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break;
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/**
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* The following properties are read-only, so they will cause the request to fail
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*/
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case 'DAV::getetag':
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case 'DAV::getcontentlength':
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case 'DAV::getcontenttype':
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case 'DAV::getlastmodified':
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case 'DAV::creationdate':
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case 'DAV::lockdiscovery':
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case 'DAV::supportedlock':
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$failure['set-'.$tag] = new XMLElement( 'propstat', array(
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new XMLElement( 'prop', new XMLElement($tag)),
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new XMLElement( 'status', 'HTTP/1.1 409 Conflict' ),
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new XMLElement('responsedescription', translate("Property is read-only") )
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));
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break;
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/**
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* If we don't have any special processing for the property, we just store it verbatim (which will be an XML fragment).
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*/
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default:
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$propertysql .= awl_replace_sql_args( "SELECT set_dav_property( ?, ?, ?, ? );", $request->path, $request->user_no, $tag, $content );
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$success[$tag] = 1;
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break;
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}
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}
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/**
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* If we have encountered any instances of failure, the whole damn thing fails.
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*/
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if ( count($failure) > 0 ) {
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foreach( $success AS $tag => $v ) {
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// Unfortunately although these succeeded, we failed overall, so they didn't happen...
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$failure[] = new XMLElement( 'propstat', array(
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new XMLElement( 'prop', new XMLElement($tag)),
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new XMLElement( 'status', 'HTTP/1.1 424 Failed Dependency' ),
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));
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}
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array_unshift( $failure, new XMLElement('href', $c->protocol_server_port_script . $request->path ) );
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$failure[] = new XMLElement('responsedescription', translate("Some properties were not able to be set.") );
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$multistatus = new XMLElement( "multistatus", new XMLElement( 'response', $failure ), array('xmlns'=>'DAV:') );
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$request->DoResponse( 207, $multistatus->Render(0,'<?xml version="1.0" encoding="utf-8" ?>'), 'text/xml; charset="utf-8"' );
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}
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}
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$sql = "SELECT * FROM collection WHERE user_no = ? AND dav_name = ?;";
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$qry = new PgQuery( $sql, $request->user_no, $request->path );
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if ( ! $qry->Exec("MKCALENDAR") ) {
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$request->DoResponse( 500, translate("Error querying database.") );
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}
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if ( $qry->rows != 0 ) {
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$request->DoResponse( 405, translate("A collection already exists at that location.") );
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}
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$sql = "BEGIN; INSERT INTO collection ( user_no, parent_container, dav_name, dav_etag, dav_displayname, is_calendar, created, modified ) VALUES( ?, ?, ?, ?, ?, ?, current_timestamp, current_timestamp ); $propertysql; COMMIT;";
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$qry = new PgQuery( $sql, $request->user_no, $parent_container, $request->path, md5($request->user_no. $request->path), $displayname, ($request->method == 'MKCALENDAR') );
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if ( $qry->Exec("MKCALENDAR",__LINE__,__FILE__) ) {
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dbg_error_log( "MKCALENDAR", "New calendar '%s' created named '%s' for user '%d' in parent '%s'", $request->path, $displayname, $session->user_no, $parent_container);
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header("Cache-Control: no-cache"); /** draft-caldav-15 declares this is necessary at 5.3.1 */
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$request->DoResponse( 201, "" );
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}
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else {
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$request->DoResponse( 500, translate("Error writing calendar details to database.") );
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}
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/**
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* FIXME: We could also respond to the request...
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*
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* <?xml version="1.0" encoding="utf-8" ?>
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* <C:mkcalendar xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
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* <D:set>
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* <D:prop>
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* <D:displayname>Lisa's Events</D:displayname>
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* <C:calendar-description xml:lang="en">Calendar restricted to events.</C:calendar-description>
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* <C:supported-calendar-component-set>
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* <C:comp name="VEVENT"/>
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* </C:supported-calendar-component-set>
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* <C:calendar-timezone><![CDATA[BEGIN:VCALENDAR
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* PRODID:-//Example Corp.//CalDAV Client//EN
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* VERSION:2.0
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* BEGIN:VTIMEZONE
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* TZID:US-Eastern
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* LAST-MODIFIED:19870101T000000Z
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* BEGIN:STANDARD
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* DTSTART:19671029T020000
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* RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
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* TZOFFSETFROM:-0400
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* TZOFFSETTO:-0500
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* TZNAME:Eastern Standard Time (US & Canada)
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* END:STANDARD
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* BEGIN:DAYLIGHT
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* DTSTART:19870405T020000
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* RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
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* TZOFFSETFROM:-0500
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* TZOFFSETTO:-0400
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* TZNAME:Eastern Daylight Time (US & Canada)
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* END:DAYLIGHT
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* END:VTIMEZONE
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* END:VCALENDAR
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* ]]></C:calendar-timezone>
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* </D:prop>
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* </D:set>
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* </C:mkcalendar>
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*
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*/
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