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<?php
/**
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
*
* @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\Settings\Controller;
use GuzzleHttp\Exception\ClientException;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http\DataResponse;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\IL10N;
use OCP\IRequest;
use OC_Util;
use OCP\IURLGenerator;
/**
* @package OC\Settings\Controller
*/
class CheckSetupController extends Controller {
/** @var IConfig */
private $config;
/** @var IClientService */
private $clientService;
/** @var \OC_Util */
private $util;
/** @var IURLGenerator */
private $urlGenerator;
/** @var IL10N */
private $l10n;
/**
* @param string $AppName
* @param IRequest $request
* @param IConfig $config
* @param IClientService $clientService
* @param IURLGenerator $urlGenerator
* @param \OC_Util $util
* @param IL10N $l10n
*/
public function __construct($AppName,
IRequest $request,
IConfig $config,
IClientService $clientService,
IURLGenerator $urlGenerator,
\OC_Util $util,
IL10N $l10n) {
parent::__construct($AppName, $request);
$this->config = $config;
$this->clientService = $clientService;
$this->util = $util;
$this->urlGenerator = $urlGenerator;
$this->l10n = $l10n;
}
/**
* Checks if the ownCloud server can connect to the internet using HTTPS and HTTP
* @return bool
*/
private function isInternetConnectionWorking() {
if ($this->config->getSystemValue('has_internet_connection', true) === false) {
return false;
}
try {
$client = $this->clientService->newClient();
$client->get('https://www.owncloud.org/');
$client->get('http://www.owncloud.org/');
return true;
} catch (\Exception $e) {
return false;
}
}
/**
* Checks whether a local memcache is installed or not
* @return bool
*/
private function isMemcacheConfigured() {
return $this->config->getSystemValue('memcache.local', null) !== null;
}
/**
* Whether /dev/urandom is available to the PHP controller
*
* @return bool
*/
private function isUrandomAvailable() {
if(@file_exists('/dev/urandom')) {
$file = fopen('/dev/urandom', 'rb');
if($file) {
fclose($file);
return true;
}
}
return false;
}
/**
* Public for the sake of unit-testing
*
* @return array
*/
public function getCurlVersion() {
return curl_version();
}
/**
* Check if the used SSL lib is outdated. Older OpenSSL and NSS versions do
* have multiple bugs which likely lead to problems in combination with
* functionality required by ownCloud such as SNI.
*
* @link https://github.com/owncloud/core/issues/17446#issuecomment-122877546
* @link https://bugzilla.redhat.com/show_bug.cgi?id=1241172
* @return string
*/
private function isUsedTlsLibOutdated() {
$versionString = $this->getCurlVersion();
if(isset($versionString['ssl_version'])) {
$versionString = $versionString['ssl_version'];
} else {
return '';
}
$features = (string)$this->l10n->t('installing and updating apps via the app store or Federated Cloud Sharing');
if(!$this->config->getSystemValue('appstoreenabled', true)) {
$features = (string)$this->l10n->t('Federated Cloud Sharing');
}
// Check if at least OpenSSL after 1.01d or 1.0.2b
if(strpos($versionString, 'OpenSSL/') === 0) {
$majorVersion = substr($versionString, 8, 5);
$patchRelease = substr($versionString, 13, 6);
if(($majorVersion === '1.0.1' && ord($patchRelease) < ord('d')) ||
($majorVersion === '1.0.2' && ord($patchRelease) < ord('b'))) {
return (string) $this->l10n->t('cURL is using an outdated %s version (%s). Please update your operating system or features such as %s will not work reliably.', ['OpenSSL', $versionString, $features]);
}
}
// Check if NSS and perform heuristic check
if(strpos($versionString, 'NSS/') === 0) {
try {
$firstClient = $this->clientService->newClient();
$firstClient->get('https://www.owncloud.org/');
$secondClient = $this->clientService->newClient();
$secondClient->get('https://owncloud.org/');
} catch (ClientException $e) {
if($e->getResponse()->getStatusCode() === 400) {
return (string) $this->l10n->t('cURL is using an outdated %s version (%s). Please update your operating system or features such as %s will not work reliably.', ['NSS', $versionString, $features]);
}
}
}
return '';
}
/*
* Whether the php version is still supported (at time of release)
* according to: https://secure.php.net/supported-versions.php
*
* @return array
*/
private function isPhpSupported() {
$eol = false;
//PHP 5.4 is EOL on 14 Sep 2015
if (version_compare(PHP_VERSION, '5.5.0') === -1) {
$eol = true;
}
return ['eol' => $eol, 'version' => PHP_VERSION];
}
/*
* Check if the reverse proxy configuration is working as expected
*
* @return bool
*/
private function forwardedForHeadersWorking() {
$trustedProxies = $this->config->getSystemValue('trusted_proxies', []);
$remoteAddress = $this->request->getRemoteAddress();
if (is_array($trustedProxies) && in_array($remoteAddress, $trustedProxies)) {
return false;
}
// either not enabled or working correctly
return true;
}
/**
* @return DataResponse
*/
public function check() {
return new DataResponse(
[
'serverHasInternetConnection' => $this->isInternetConnectionWorking(),
'dataDirectoryProtected' => $this->util->isHtaccessWorking($this->config),
'isMemcacheConfigured' => $this->isMemcacheConfigured(),
'memcacheDocs' => $this->urlGenerator->linkToDocs('admin-performance'),
'isUrandomAvailable' => $this->isUrandomAvailable(),
'securityDocs' => $this->urlGenerator->linkToDocs('admin-security'),
'isUsedTlsLibOutdated' => $this->isUsedTlsLibOutdated(),
'phpSupported' => $this->isPhpSupported(),
'forwardedForHeadersWorking' => $this->forwardedForHeadersWorking(),
'reverseProxyDocs' => $this->urlGenerator->linkToDocs('admin-reverse-proxy'),
]
);
}
}
|
