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composer/src/Composer/Repository/Pear/BaseChannelReader.php

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PHP

<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Repository\Pear;
use Composer\Util\RemoteFilesystem;
/**
* Base PEAR Channel reader.
*
* Provides xml namespaces and red
*
* @author Alexey Prilipko <palex@farpost.com>
*/
abstract class BaseChannelReader
{
/**
* PEAR REST Interface namespaces
*/
const CHANNEL_NS = 'http://pear.php.net/channel-1.0';
const ALL_CATEGORIES_NS = 'http://pear.php.net/dtd/rest.allcategories';
const CATEGORY_PACKAGES_INFO_NS = 'http://pear.php.net/dtd/rest.categorypackageinfo';
const ALL_PACKAGES_NS = 'http://pear.php.net/dtd/rest.allpackages';
const ALL_RELEASES_NS = 'http://pear.php.net/dtd/rest.allreleases';
const PACKAGE_INFO_NS = 'http://pear.php.net/dtd/rest.package';
/** @var RemoteFilesystem */
private $rfs;
protected function __construct(RemoteFilesystem $rfs)
{
$this->rfs = $rfs;
}
/**
* Read content from remote filesystem.
*
* @param $origin string server
* @param $path string relative path to content
* @throws \UnexpectedValueException
* @return \SimpleXMLElement
*/
protected function requestContent($origin, $path)
{
$url = rtrim($origin, '/') . '/' . ltrim($path, '/');
$content = $this->rfs->getContents($origin, $url, false);
if (!$content) {
throw new \UnexpectedValueException('The PEAR channel at ' . $url . ' did not respond.');
}
return str_replace('http://pear.php.net/rest/', 'https://pear.php.net/rest/', $content);
}
/**
* Read xml content from remote filesystem
*
* @param $origin string server
* @param $path string relative path to content
* @throws \UnexpectedValueException
* @return \SimpleXMLElement
*/
protected function requestXml($origin, $path)
{
// http://components.ez.no/p/packages.xml is malformed. to read it we must ignore parsing errors.
$xml = simplexml_load_string($this->requestContent($origin, $path), "SimpleXMLElement", LIBXML_NOERROR);
if (false === $xml) {
throw new \UnexpectedValueException(sprintf('The PEAR channel at ' . $origin . ' is broken. (Invalid XML at file `%s`)', $path));
}
return $xml;
}
}