nextcloud/lib/private/app/infoparser.php

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<?php
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/**
* @author Andreas Fischer <bantu@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\App;
use OCP\IURLGenerator;
class InfoParser {
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/**
* @var \OC\HTTPHelper
*/
private $httpHelper;
/**
* @var IURLGenerator
*/
private $urlGenerator;
/**
* @param \OC\HTTPHelper $httpHelper
* @param IURLGenerator $urlGenerator
*/
public function __construct(\OC\HTTPHelper $httpHelper, IURLGenerator $urlGenerator) {
$this->httpHelper = $httpHelper;
$this->urlGenerator = $urlGenerator;
}
/**
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* @param string $file the xml file to be loaded
* @return null|array where null is an indicator for an error
*/
public function parse($file) {
if (!file_exists($file)) {
return null;
}
libxml_use_internal_errors(true);
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$loadEntities = libxml_disable_entity_loader(false);
$xml = simplexml_load_file($file);
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libxml_disable_entity_loader($loadEntities);
if ($xml == false) {
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libxml_clear_errors();
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return null;
}
$array = $this->xmlToArray($xml);
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if (is_null($array)) {
return null;
}
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if (!array_key_exists('info', $array)) {
$array['info'] = array();
}
if (!array_key_exists('remote', $array)) {
$array['remote'] = array();
}
if (!array_key_exists('public', $array)) {
$array['public'] = array();
}
if (!array_key_exists('types', $array)) {
$array['types'] = array();
}
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if (array_key_exists('documentation', $array) && is_array($array['documentation'])) {
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foreach ($array['documentation'] as $key => $url) {
// If it is not an absolute URL we assume it is a key
// i.e. admin-ldap will get converted to go.php?to=admin-ldap
if (!$this->httpHelper->isHTTPURL($url)) {
$url = $this->urlGenerator->linkToDocs($url);
}
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$array['documentation'][$key] = $url;
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}
}
if (array_key_exists('types', $array)) {
if (is_array($array['types'])) {
foreach ($array['types'] as $type => $v) {
unset($array['types'][$type]);
if (is_string($type)) {
$array['types'][] = $type;
}
}
} else {
$array['types'] = array();
}
}
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return $array;
}
/**
* @param \SimpleXMLElement $xml
* @return array
*/
function xmlToArray($xml) {
if (!$xml->children()) {
return (string)$xml;
}
$array = array();
foreach ($xml->children() as $element => $node) {
$totalElement = count($xml->{$element});
if (!isset($array[$element])) {
$array[$element] = "";
}
/**
* @var \SimpleXMLElement $node
*/
// Has attributes
if ($attributes = $node->attributes()) {
$data = array(
'@attributes' => array(),
);
if (!count($node->children())){
$value = (string)$node;
if (!empty($value)) {
$data['@value'] = (string)$node;
}
} else {
$data = array_merge($data, $this->xmlToArray($node));
}
foreach ($attributes as $attr => $value) {
$data['@attributes'][$attr] = (string)$value;
}
if ($totalElement > 1) {
$array[$element][] = $data;
} else {
$array[$element] = $data;
}
// Just a value
} else {
if ($totalElement > 1) {
$array[$element][] = $this->xmlToArray($node);
} else {
$array[$element] = $this->xmlToArray($node);
}
}
}
return $array;
}
}