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<?php
namespace Sabre\CalDAV\Xml\Filter;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use Sabre\DAV\Exception\BadRequest;
use Sabre\CalDAV\Plugin;
use Sabre\VObject\DateTimeParser;
/**
* CalendarData parser.
*
* This class parses the {urn:ietf:params:xml:ns:caldav}calendar-data XML
* element, as defined in:
*
* https://tools.ietf.org/html/rfc4791#section-9.6
*
* This element is used in three distinct places in the caldav spec, but in
* this case, this element class only implements the calendar-data element as
* it appears in a DAV:prop element, in a calendar-query or calendar-multiget
* REPORT request.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://sabre.io/license/ Modified BSD License
*/
class CalendarData implements XmlDeserializable {
/**
* The deserialize method is called during xml parsing.
*
* This method is called statictly, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* You are responsible for advancing the reader to the next element. Not
* doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @param Reader $reader
* @return mixed
*/
static function xmlDeserialize(Reader $reader) {
$result = [
'contentType' => $reader->getAttribute('content-type') ?: 'text/calendar',
'version' => $reader->getAttribute('version') ?: '2.0',
];
$elems = (array)$reader->parseInnerTree();
foreach ($elems as $elem) {
switch ($elem['name']) {
case '{' . Plugin::NS_CALDAV . '}expand' :
$result['expand'] = [
'start' => isset($elem['attributes']['start']) ? DateTimeParser::parseDateTime($elem['attributes']['start']) : null,
'end' => isset($elem['attributes']['end']) ? DateTimeParser::parseDateTime($elem['attributes']['end']) : null,
];
if (!$result['expand']['start'] || !$result['expand']['end']) {
throw new BadRequest('The "start" and "end" attributes are required when expanding calendar-data');
}
if ($result['expand']['end'] <= $result['expand']['start']) {
throw new BadRequest('The end-date must be larger than the start-date when expanding calendar-data');
}
break;
}
}
return $result;
}
}
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