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<?php
namespace Drupal\update;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\DependencyInjection\DependencySerializationTrait;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\RequestException;
/**
* Fetches project information from remote locations.
*/
class UpdateFetcher implements UpdateFetcherInterface {
use DependencySerializationTrait;
/**
* URL to check for updates, if a given project doesn't define its own.
*/
const UPDATE_DEFAULT_URL = 'http://updates.drupal.org/release-history';
/**
* The fetch url configured in the update settings.
*
* @var string
*/
protected $fetchUrl;
/**
* The update settings
*
* @var \Drupal\Core\Config\Config
*/
protected $updateSettings;
/**
* The HTTP client to fetch the feed data with.
*
* @var \GuzzleHttp\ClientInterface
*/
protected $httpClient;
/**
* Constructs a UpdateFetcher.
*
* @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
* The config factory.
* @param \GuzzleHttp\ClientInterface $http_client
* A Guzzle client object.
*/
public function __construct(ConfigFactoryInterface $config_factory, ClientInterface $http_client) {
$this->fetchUrl = $config_factory->get('update.settings')->get('fetch.url');
$this->httpClient = $http_client;
$this->updateSettings = $config_factory->get('update.settings');
}
/**
* {@inheritdoc}
*/
public function fetchProjectData(array $project, $site_key = '') {
$url = $this->buildFetchUrl($project, $site_key);
$data = '';
try {
$data = (string) $this->httpClient
->get($url, ['headers' => ['Accept' => 'text/xml']])
->getBody();
}
catch (RequestException $exception) {
watchdog_exception('update', $exception);
}
return $data;
}
/**
* {@inheritdoc}
*/
public function buildFetchUrl(array $project, $site_key = '') {
$name = $project['name'];
$url = $this->getFetchBaseUrl($project);
$url .= '/' . $name . '/' . \Drupal::CORE_COMPATIBILITY;
// Only append usage information if we have a site key and the project is
// enabled. We do not want to record usage statistics for disabled projects.
if (!empty($site_key) && (strpos($project['project_type'], 'disabled') === FALSE)) {
// Append the site key.
$url .= (strpos($url, '?') !== FALSE) ? '&' : '?';
$url .= 'site_key=';
$url .= rawurlencode($site_key);
// Append the version.
if (!empty($project['info']['version'])) {
$url .= '&version=';
$url .= rawurlencode($project['info']['version']);
}
// Append the list of modules or themes enabled.
$list = array_keys($project['includes']);
$url .= '&list=';
$url .= rawurlencode(implode(',', $list));
}
return $url;
}
/**
* {@inheritdoc}
*/
public function getFetchBaseUrl($project) {
if (isset($project['info']['project status url'])) {
$url = $project['info']['project status url'];
}
else {
$url = $this->fetchUrl;
if (empty($url)) {
$url = static::UPDATE_DEFAULT_URL;
}
}
return $url;
}
}