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<?php
/**
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
*
* @author Georg Ehrke <georg@owncloud.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Request;
use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;
/**
* CalendarSearchReport request parser.
*
* This class parses the {urn:ietf:params:xml:ns:caldav}calendar-query
* REPORT, as defined in:
*
* https:// link to standard
*/
class CalendarSearchReport implements XmlDeserializable {
/**
* An array with requested properties.
*
* @var array
*/
public $properties;
/**
* List of property/component filters.
*
* @var array
*/
public $filters;
/**
* @var int
*/
public $limit;
/**
* @var int
*/
public $offset;
/**
* 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.
*
* @param Reader $reader
* @return mixed
*/
static function xmlDeserialize(Reader $reader) {
$elems = $reader->parseInnerTree([
'{http://nextcloud.com/ns}comp-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\CompFilter',
'{http://nextcloud.com/ns}prop-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\PropFilter',
'{http://nextcloud.com/ns}param-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\ParamFilter',
'{http://nextcloud.com/ns}search-term' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\SearchTermFilter',
'{http://nextcloud.com/ns}limit' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\LimitFilter',
'{http://nextcloud.com/ns}offset' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\OffsetFilter',
'{DAV:}prop' => 'Sabre\\Xml\\Element\\KeyValue',
]);
$newProps = [
'filters' => [],
'properties' => [],
'limit' => null,
'offset' => null
];
if (!is_array($elems)) {
$elems = [];
}
foreach ($elems as $elem) {
switch ($elem['name']) {
case '{DAV:}prop':
$newProps['properties'] = array_keys($elem['value']);
break;
case '{' . SearchPlugin::NS_Nextcloud . '}filter':
foreach ($elem['value'] as $subElem) {
if ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}comp-filter') {
if (!isset($newProps['filters']['comps']) || !is_array($newProps['filters']['comps'])) {
$newProps['filters']['comps'] = [];
}
$newProps['filters']['comps'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}prop-filter') {
if (!isset($newProps['filters']['props']) || !is_array($newProps['filters']['props'])) {
$newProps['filters']['props'] = [];
}
$newProps['filters']['props'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}param-filter') {
if (!isset($newProps['filters']['params']) || !is_array($newProps['filters']['params'])) {
$newProps['filters']['params'] = [];
}
$newProps['filters']['params'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}search-term') {
$newProps['filters']['search-term'] = $subElem['value'];
}
}
break;
case '{' . SearchPlugin::NS_Nextcloud . '}limit':
$newProps['limit'] = $elem['value'];
break;
case '{' . SearchPlugin::NS_Nextcloud . '}offset':
$newProps['offset'] = $elem['value'];
break;
}
}
if (empty($newProps['filters'])) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}filter element is required for this request');
}
$propsOrParamsDefined = (!empty($newProps['filters']['props']) || !empty($newProps['filters']['params']));
$noCompsDefined = empty($newProps['filters']['comps']);
if ($propsOrParamsDefined && $noCompsDefined) {
throw new BadRequest('{' . SearchPlugin::NS_Nextcloud . '}prop-filter or {' . SearchPlugin::NS_Nextcloud . '}param-filter given without any {' . SearchPlugin::NS_Nextcloud . '}comp-filter');
}
if (!isset($newProps['filters']['search-term'])) {
throw new BadRequest('{' . SearchPlugin::NS_Nextcloud . '}search-term is required for this request');
}
if (empty($newProps['filters']['props']) && empty($newProps['filters']['params'])) {
throw new BadRequest('At least one{' . SearchPlugin::NS_Nextcloud . '}prop-filter or {' . SearchPlugin::NS_Nextcloud . '}param-filter is required for this request');
}
$obj = new self();
foreach ($newProps as $key => $value) {
$obj->$key = $value;
}
return $obj;
}
}
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