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<?php
declare(strict_types=1);
namespace Sabre\CalDAV\Xml\Filter;
use Sabre\CalDAV\Plugin;
use Sabre\DAV\Exception\BadRequest;
use Sabre\VObject\DateTimeParser;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
/**
* PropFilter parser.
*
* This class parses the {urn:ietf:params:xml:ns:caldav}prop-filter XML
* element, as defined in:
*
* https://tools.ietf.org/html/rfc4791#section-9.7.2
*
* The result will be spit out as an array.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://sabre.io/license/ Modified BSD License
*/
class PropFilter implements XmlDeserializable
{
/**
* The deserialize method is called during xml parsing.
*
* This method is called statically, 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.
*
* @return mixed
*/
public static function xmlDeserialize(Reader $reader)
{
$result = [
'name' => null,
'is-not-defined' => false,
'param-filters' => [],
'text-match' => null,
'time-range' => false,
];
$att = $reader->parseAttributes();
$result['name'] = $att['name'];
$elems = $reader->parseInnerTree();
if (is_array($elems)) {
foreach ($elems as $elem) {
switch ($elem['name']) {
case '{'.Plugin::NS_CALDAV.'}param-filter':
$result['param-filters'][] = $elem['value'];
break;
case '{'.Plugin::NS_CALDAV.'}is-not-defined':
$result['is-not-defined'] = true;
break;
case '{'.Plugin::NS_CALDAV.'}time-range':
$result['time-range'] = [
'start' => isset($elem['attributes']['start']) ? DateTimeParser::parseDateTime($elem['attributes']['start']) : null,
'end' => isset($elem['attributes']['end']) ? DateTimeParser::parseDateTime($elem['attributes']['end']) : null,
];
if ($result['time-range']['start'] && $result['time-range']['end'] && $result['time-range']['end'] <= $result['time-range']['start']) {
throw new BadRequest('The end-date must be larger than the start-date');
}
break;
case '{'.Plugin::NS_CALDAV.'}text-match':
$result['text-match'] = [
'negate-condition' => isset($elem['attributes']['negate-condition']) && 'yes' === $elem['attributes']['negate-condition'],
'collation' => isset($elem['attributes']['collation']) ? $elem['attributes']['collation'] : 'i;ascii-casemap',
'value' => $elem['value'],
];
break;
}
}
}
return $result;
}
}
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