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<?php |
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/** |
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* @author Victor Dubiniuk <[email protected]> |
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* |
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* @copyright Copyright (c) 2015, ownCloud, Inc. |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace Owncloud\Updater\Utils; |
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use GuzzleHttp\Client; |
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/** |
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* Class Fetcher |
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* |
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* @package Owncloud\Updater\Utils |
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*/ |
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class Fetcher { |
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const DEFAULT_BASE_URL = 'https://updates.owncloud.com/server/'; |
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/** |
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* @var Locator $locator |
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*/ |
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protected $locator; |
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/** |
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* @var ConfigReader $configReader |
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*/ |
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protected $configReader; |
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/** |
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* @var Client $httpClient |
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*/ |
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protected $httpClient; |
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protected $requiredFeedEntries = [ |
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'version', |
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'versionstring', |
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'url' |
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]; |
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/** |
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* Constructor |
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* |
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* @param Client $httpClient |
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* @param Locator $locator |
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* @param ConfigReader $configReader |
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*/ |
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public function __construct(Client $httpClient, Locator $locator, ConfigReader $configReader){ |
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$this->httpClient = $httpClient; |
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$this->locator = $locator; |
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$this->configReader = $configReader; |
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} |
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/** |
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* Download new ownCloud package |
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* @param Feed $feed |
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* @param Callable $onProgress |
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* @throws \Exception |
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* @throws \UnexpectedValueException |
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*/ |
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public function getOwncloud(Feed $feed, callable $onProgress){ |
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if ($feed->isValid()){ |
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$downloadPath = $this->getBaseDownloadPath($feed); |
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if (!is_writable(dirname($downloadPath))){ |
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throw new \Exception(dirname($downloadPath) . ' is not writable.'); |
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} |
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$url = $feed->getUrl(); |
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$request = $this->httpClient->createRequest( |
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'GET', |
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$url, |
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[ |
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'save_to' => $downloadPath, |
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'timeout' => 600 |
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] |
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); |
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$request->getEmitter()->on('progress', $onProgress); |
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$response = $this->httpClient->send($request); |
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$this->validateResponse($response); |
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} |
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} |
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/** |
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* Produce a local path to save the package to |
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* @param Feed $feed |
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* @return string |
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*/ |
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public function getBaseDownloadPath(Feed $feed){ |
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$basePath = $this->locator->getDownloadBaseDir(); |
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return $basePath . '/' . $feed->getDownloadedFileName(); |
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} |
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/** |
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* Get md5 sum for the package |
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* @param Feed $feed |
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* @return string |
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*/ |
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public function getMd5(Feed $feed){ |
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$fullChecksum = $this->download($feed->getChecksumUrl()); |
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// we got smth like "5776cbd0a95637ade4b2c0d8694d8fca -" |
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//strip trailing space & dash |
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return substr($fullChecksum, 0, 32); |
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} |
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/** |
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* Read update feed for new releases |
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* @return Feed |
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*/ |
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public function getFeed(){ |
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$url = $this->getFeedUrl(); |
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$xml = $this->download($url); |
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$tmp = []; |
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if ($xml){ |
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$loadEntities = libxml_disable_entity_loader(true); |
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$data = @simplexml_load_string($xml); |
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libxml_disable_entity_loader($loadEntities); |
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if ($data !== false){ |
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$tmp['version'] = (string) $data->version; |
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$tmp['versionstring'] = (string) $data->versionstring; |
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$tmp['url'] = (string) $data->url; |
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$tmp['web'] = (string) $data->web; |
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} |
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} |
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return new Feed($tmp); |
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} |
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/** |
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* @return mixed|string |
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*/ |
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public function getUpdateChannel(){ |
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$channel = $this->configReader->getByPath('apps.core.OC_Channel'); |
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if (is_null($channel)) { |
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return $this->locator->getChannelFromVersionsFile(); |
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} |
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return $channel; |
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} |
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/** |
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* Produce complete feed URL |
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* @return string |
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*/ |
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protected function getFeedUrl(){ |
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$currentVersion = $this->configReader->getByPath('system.version'); |
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$version = explode('.', $currentVersion); |
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$version['installed'] = $this->configReader->getByPath('apps.core.installedat'); |
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$version['updated'] = $this->configReader->getByPath('apps.core.lastupdatedat'); |
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$version['updatechannel'] = $this->getUpdateChannel(); |
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$version['edition'] = $this->configReader->getEdition(); |
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$version['build'] = $this->locator->getBuild(); |
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// Read updater server URL from config |
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$updaterServerUrl = $this->configReader->get(['system', 'updater.server.url']); |
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if ((bool) $updaterServerUrl === false){ |
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$updaterServerUrl = self::DEFAULT_BASE_URL; |
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} |
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$url = $updaterServerUrl . '?version=' . implode('x', $version); |
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return $url; |
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} |
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/** |
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* Get URL content |
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* @param string $url |
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* @return string |
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* @throws \UnexpectedValueException |
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*/ |
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protected function download($url){ |
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$response = $this->httpClient->get($url, ['timeout' => 600]); |
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$this->validateResponse($response); |
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return $response->getBody()->getContents(); |
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} |
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/** |
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* Check if request was successful |
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* @param \GuzzleHttp\Message\ResponseInterface $response |
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* @throws \UnexpectedValueException |
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*/ |
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protected function validateResponse($response){ |
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if ($response->getStatusCode() !== 200){ |
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throw new \UnexpectedValueException( |
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'Failed to download ' |
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. $response->getEffectiveUrl() |
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. '. Server responded with ' |
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. $response->getStatusCode() |
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. ' instead of 200.'); |
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} |
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} |
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} |
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owncloud /
updater
