owncloud/core

<?php

namespace OCA\DAV\Files\Xml;

use Sabre\Xml\Element\Base;
use Sabre\Xml\Element\KeyValue;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;

class FilterRequest implements XmlDeserializable {
    /**
     * An array with requested properties.
     *
     * @var array
     */
    public $properties;

    /**
     * @var array
     */
    public $filters;

    /**
     * @var array
     */
    public $search;

    /**
     * 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
     */
    public static function xmlDeserialize(Reader $reader) {
        $elems = (array)$reader->parseInnerTree([
            '{DAV:}prop' => KeyValue::class,
            '{http://owncloud.org/ns}filter-rules' => Base::class,
            '{http://owncloud.org/ns}search' => KeyValue::class,
        ]);

        $newProps = [
            'filters'    => [
                'systemtag' => [],
                'favorite' => null
            ],
            'properties' => [],
            'search' => null,
        ];

        if (!\is_array($elems)) {
            $elems = [];
        }

        foreach ($elems as $elem) {
            switch ($elem['name']) {
                case '{DAV:}prop':
                    $newProps['properties'] = \array_keys($elem['value']);
                    break;
                case '{http://owncloud.org/ns}filter-rules':

                    foreach ($elem['value'] as $tag) {
                        if ($tag['name'] === '{http://owncloud.org/ns}systemtag') {
                            $newProps['filters']['systemtag'][] = $tag['value'];
                        }
                        if ($tag['name'] === '{http://owncloud.org/ns}favorite') {
                            $newProps['filters']['favorite'] = true;
                        }
                    }
                    break;
                case '{http://owncloud.org/ns}search':
                    $value = $elem['value'];
                    if (isset($value['{http://owncloud.org/ns}pattern'])) {
                        $newProps['search']['pattern'] = $value['{http://owncloud.org/ns}pattern'];
                    }
                    if (isset($value['{http://owncloud.org/ns}limit'])) {
                        $newProps['search']['limit'] = (int)$value['{http://owncloud.org/ns}limit'];
                    }
                    if (isset($value['{http://owncloud.org/ns}offset'])) {
                        $newProps['search']['offset'] = (int)$value['{http://owncloud.org/ns}offset'];
                    }
                    break;
            }
        }

        $obj = new self();
        foreach ($newProps as $key => $value) {
            $obj->$key = $value;
        }

        return $obj;
    }
}