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<?php |
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/** |
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* Asset Packagist. |
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* |
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* @link https://github.com/hiqdev/asset-packagist |
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* @package asset-packagist |
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* @license BSD-3-Clause |
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* @copyright Copyright (c) 2016-2017, HiQDev (http://hiqdev.com/) |
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*/ |
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namespace hiqdev\assetpackagist\components; |
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use hiqdev\assetpackagist\exceptions\AssetFileStorageException; |
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use hiqdev\assetpackagist\models\AssetPackage; |
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use Yii; |
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use yii\base\Component; |
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use yii\helpers\Json; |
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class Storage extends Component implements StorageInterface |
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{ |
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protected $_path; |
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protected $_locker; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function init() |
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{ |
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$this->_path = Yii::getAlias('@storage', false); |
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} |
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protected function acquireLock() |
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{ |
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/* @var $mutex \yii\mutex\Mutex */ |
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$mutex = Yii::$app->mutex; |
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if (!$mutex->acquire('lock', 5)) { |
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throw new \Exception('failed get lock'); |
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} |
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} |
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protected function releaseLock() |
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{ |
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/* @var $mutex \yii\mutex\Mutex */ |
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$mutex = Yii::$app->mutex; |
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$mutex->release('lock'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getNextId() |
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{ |
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$this->acquireLock(); |
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{ |
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$nextID = $this->readLastId() + 1; |
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$this->writeLastId($nextID); |
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} |
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$this->releaseLock(); |
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return $nextID; |
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} |
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protected function readLastId() |
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{ |
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$path = $this->getLastIdPath(); |
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return (file_exists($path) ? (int) file_get_contents($path) : 0) ?: 1000000; |
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} |
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protected function writeLastId($value) |
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{ |
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if (file_put_contents($this->getLastIdPath(), $value) === false) { |
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throw new AssetFileStorageException('Filed to write lastId to the storage'); |
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} |
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} |
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protected function getLastIdPath() |
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{ |
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return $this->buildPath('lastid'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function writePackage(AssetPackage $package) |
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{ |
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$name = $package->getNormalName(); |
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$data = [ |
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'packages' => [ |
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$name => $package->getReleases(), |
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], |
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]; |
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$json = Json::encode($data); |
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$hash = hash('sha256', $json); |
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$path = $this->buildHashedPath($name, $hash); |
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$latestPath = $this->buildHashedPath($name); |
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if (!file_exists($path)) { |
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$this->acquireLock(); |
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try { |
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if ($this->mkdir(dirname($path)) === false) { |
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throw new AssetFileStorageException('Failed to create a directory for asset-package', $package); |
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} |
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if (file_put_contents($path, $json) === false) { |
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throw new AssetFileStorageException('Failed to write package', $package); |
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} |
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if (file_put_contents($latestPath, $json) === false) { |
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throw new AssetFileStorageException('Failed to write file "latest.json" for asset-packge', $package); |
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} |
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$this->writeProviderLatest($name, $hash); |
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} finally { |
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$this->releaseLock(); |
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} |
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} else { |
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touch($latestPath); |
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} |
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return $hash; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function readPackage(AssetPackage $package) |
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{ |
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$name = $package->getNormalName(); |
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$path = $this->buildHashedPath($name); |
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clearstatcache(false, $path); |
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if (!file_exists($path)) { |
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return null; |
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} |
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$json = file_get_contents($path); |
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$updateTime = filemtime($path); |
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$hash = hash('sha256', $json); |
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try { |
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$data = Json::decode($json); |
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} catch (\Exception $e) { |
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return null; |
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} |
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$releases = isset($data['packages'][$name]) ? $data['packages'][$name] : []; |
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return compact('hash', 'releases', 'updateTime'); |
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} |
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protected function buildPath() |
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{ |
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$args = func_get_args(); |
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array_unshift($args, $this->_path); |
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return implode(DIRECTORY_SEPARATOR, $args); |
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} |
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protected function buildHashedPath($name, $hash = 'latest') |
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{ |
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return $this->buildPath('p', $name, $hash . '.json'); |
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} |
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protected function writeProviderLatest($name, $hash) |
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{ |
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$latestPath = $this->buildHashedPath('provider-latest'); |
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if (file_exists($latestPath)) { |
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$data = Json::decode(file_get_contents($latestPath) ?: '[]'); |
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} |
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if (!isset($data) || !is_array($data)) { |
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$data = []; |
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} |
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if (!isset($data['providers'])) { |
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$data['providers'] = []; |
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} |
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$data['providers'][$name] = ['sha256' => $hash]; |
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$json = Json::encode($data); |
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$hash = hash('sha256', $json); |
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$path = $this->buildHashedPath('provider-latest', $hash); |
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if (!file_exists($path)) { |
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$this->acquireLock(); |
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try { |
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if ($this->mkdir(dirname($path)) === false) { |
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throw new AssetFileStorageException('Failed to create a directory for provider-latest storage'); |
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} |
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View Code Duplication |
if (file_put_contents($path, $json) === false) { |
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throw new AssetFileStorageException('Failed to write package to provider-latest storage for package "' . $name . '"'); |
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} |
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View Code Duplication |
if (file_put_contents($latestPath, $json) === false) { |
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throw new AssetFileStorageException('Failed to write file "latest.json" to provider-latest storage for package "' . $name . '"'); |
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} |
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$this->writePackagesJson($hash); |
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} finally { |
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$this->releaseLock(); |
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} |
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} else { |
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touch($latestPath); |
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} |
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return $hash; |
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} |
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protected function writePackagesJson($hash) |
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{ |
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$data = [ |
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'providers-url' => '/p/%package%/%hash%.json', |
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'provider-includes' => [ |
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'p/provider-latest/%hash%.json' => [ |
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'sha256' => $hash, |
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], |
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], |
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]; |
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$this->acquireLock(); |
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$filename = $this->buildPath('packages.json'); |
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try { |
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if (file_put_contents($filename, Json::encode($data)) === false) { |
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throw new AssetFileStorageException('Failed to write main packages.json'); |
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} |
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touch($filename); |
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} finally { |
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$this->releaseLock(); |
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} |
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} |
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/** |
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* Creates directory $dir and sets chmod 777. |
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* @param string $dir |
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* @return bool whether the directory was created successfully |
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*/ |
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protected function mkdir($dir) |
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{ |
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if (!file_exists($dir)) { |
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return @mkdir($dir, 0777, true); |
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} |
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return true; |
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} |
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public function readJson($path) |
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{ |
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return Json::decode(file_get_contents($this->buildPath($path))); |
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} |
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protected function readPackagesJson() |
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{ |
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$data = $this->readJson('packages.json'); |
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return $data['provider-includes']; |
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} |
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protected function readProvider($path) |
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{ |
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$data = $this->readJson($path); |
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return $data['providers']; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function listPackages() |
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{ |
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$packages = []; |
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$providers = $this->readPackagesJson(); |
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foreach ($providers as $path => $data) { |
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$path = strtr($path, ['%hash%' => $data['sha256']]); |
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$packages = array_merge($packages, $this->readProvider($path)); |
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} |
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return $packages; |
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} |
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public function checkIsSane(AssetPackage $package) |
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{ |
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$isOk = true; |
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$name = $package->getNormalName(); |
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try { |
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$directoryIterator = new \DirectoryIterator($this->buildPath('p', $name)); |
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$iterator = new \RegexIterator($directoryIterator, '/^.+\.json$/i', \RecursiveRegexIterator::GET_MATCH); |
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} catch (\UnexpectedValueException $e) { |
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return false; |
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} |
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foreach ($iterator as $match) { |
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$filename = $match[0]; |
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$sha = basename($filename, '.json'); |
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if ($sha === 'latest') { |
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continue; |
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} |
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$path = $this->buildPath('p', $name, $filename); |
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$fileHash = hash_file('sha256', $path); |
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if ($sha !== $fileHash) { |
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unlink($path); |
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$isOk = false; |
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} |
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} |
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return $isOk; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.