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<?php |
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namespace phpbu\App\Backup\Sync; |
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use GuzzleHttp\Psr7\Stream; |
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use OpenStack\ObjectStore\v1\Models\Container; |
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use OpenStack\ObjectStore\v1\Service as ObjectStoreService; |
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use GuzzleHttp\Client; |
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use OpenStack\Common\Transport\HandlerStack; |
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use OpenStack\Common\Transport\Utils; |
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use OpenStack\Identity\v2\Service; |
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use phpbu\App\Backup\Collector; |
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use phpbu\App\Backup\Sync; |
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use phpbu\App\Backup\Target; |
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use phpbu\App\Result; |
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use phpbu\App\Util; |
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/** |
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* OpenStack Swift Sync |
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* |
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* @package phpbu |
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* @subpackage Backup |
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* @author Vitaly Baev <[email protected]> |
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* @author Sebastian Feldmann <[email protected]> |
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* @copyright Sebastian Feldmann <[email protected]> |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* @link http://phpbu.de/ |
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* @since Class available since Release 5.1 |
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*/ |
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class Openstack extends Sync |
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{ |
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use Clearable; |
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/** |
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* OpenStack identify url |
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* |
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* @var string |
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*/ |
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protected $authUrl; |
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/** |
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* OpenStack region |
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* |
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* @var string |
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*/ |
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protected $region; |
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/** |
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* @var string |
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*/ |
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protected $username; |
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/** |
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* @var string |
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*/ |
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protected $password; |
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/** |
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* Object Store container name |
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* |
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* @var string |
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*/ |
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protected $containerName; |
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/** |
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* OpenStack service name |
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* |
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* @var string |
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*/ |
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protected $serviceName; |
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/** |
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* Max stream upload size, files over this size have to be uploaded as Dynamic Large Objects |
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* |
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* @var int |
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*/ |
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protected $maxStreamUploadSize = 5368709120; |
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/** |
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* Path where to copy the backup. |
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* |
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* @var string |
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*/ |
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protected $path = ''; |
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/** |
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* @var Container |
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*/ |
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protected $container; |
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/** |
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* @return string |
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*/ |
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public function getPath(): string |
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{ |
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return $this->path; |
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} |
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/** |
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* (non-PHPDoc) |
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* |
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* @see \phpbu\App\Backup\Sync::setup() |
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* @param array $config |
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* @throws \phpbu\App\Backup\Sync\Exception |
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* @throws \phpbu\App\Exception |
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*/ |
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public function setup(array $config) |
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{ |
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if (!class_exists('\\OpenStack\\OpenStack')) { |
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throw new Exception('OpeStack SDK not loaded: use composer to install "php-opencloud/openstack"'); |
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} |
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// check for mandatory options |
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$this->validateConfig($config, ['auth_url', 'region', 'username', 'password', 'container_name']); |
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$this->authUrl = $config['auth_url']; |
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$this->region = $config['region']; |
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$this->username = $config['username']; |
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$this->password = $config['password']; |
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$this->containerName = $config['container_name']; |
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$this->serviceName = Util\Arr::getValue($config, 'service_name', 'swift'); |
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if (Util\Arr::getValue($config, 'path')) { |
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$this->path = Util\Path::withTrailingSlash(Util\Path::replaceDatePlaceholders($config['path'])); |
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$this->path = substr($this->path, 0, 1) == '/' ? substr($this->path, 1) : $this->path; |
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} |
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$this->setUpClearable($config); |
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} |
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/** |
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* Execute the sync. |
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* |
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* @see \phpbu\App\Backup\Sync::sync() |
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* @param \phpbu\App\Backup\Target $target |
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* @param \phpbu\App\Result $result |
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* @throws \phpbu\App\Backup\Sync\Exception |
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* @throws \OpenStack\Common\Error\BadResponseError |
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*/ |
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public function sync(Target $target, Result $result) |
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{ |
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if (!$this->container) { |
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$this->connect($result); |
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} |
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try { |
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if ($target->getSize() > $this->maxStreamUploadSize) { |
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// use Dynamic Large Objects |
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$uploadOptions = [ |
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'name' => $this->getUploadPath($target), |
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'stream' => new Stream(fopen($target->getPathname(), 'r')), |
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]; |
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$this->container->createLargeObject($uploadOptions); |
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} else { |
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// create an object |
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$uploadOptions = [ |
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'name' => $this->getUploadPath($target), |
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'content' => file_get_contents($target->getPathname()), |
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]; |
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$this->container->createObject($uploadOptions); |
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} |
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} catch (\Exception $e) { |
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throw new Exception($e->getMessage(), null, $e); |
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} |
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// run remote cleanup |
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$this->cleanup($target, $result); |
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$result->debug('upload: done'); |
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} |
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/** |
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* Simulate the sync execution. |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @param \phpbu\App\Result $result |
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*/ |
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public function simulate(Target $target, Result $result) |
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{ |
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$result->debug( |
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'sync backup to OpenStack' . PHP_EOL |
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. ' region: ' . $this->region . PHP_EOL |
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. ' key: ' . $this->username . PHP_EOL |
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. ' password: ********' . PHP_EOL |
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. ' container: ' . $this->containerName |
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. ' path: "' . $this->path . '"' . PHP_EOL |
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); |
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$this->simulateRemoteCleanup($target, $result); |
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} |
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/** |
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* Creates collector for OpenStack |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @return \phpbu\App\Backup\Collector |
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*/ |
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protected function createCollector(Target $target): Collector |
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{ |
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return new Collector\OpenStack($target, $this->container, $this->path); |
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} |
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/** |
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* @param ObjectStoreService $service |
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* @param Result $result |
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* @return \OpenStack\ObjectStore\v1\Models\Container |
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* @throws \OpenStack\Common\Error\BadResponseError |
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*/ |
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protected function getOrCreateContainer(ObjectStoreService $service, Result $result) |
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{ |
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if (!$service->containerExists($this->containerName)) { |
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$result->debug('create container'); |
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return $service->createContainer(['name' => $this->containerName]); |
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} |
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return $service->getContainer($this->containerName); |
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} |
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/** |
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* Get the upload path |
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* |
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* @param \phpbu\App\Backup\Target $target |
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* @return string |
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*/ |
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public function getUploadPath(Target $target) |
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{ |
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return $this->path . $target->getFilename(); |
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} |
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/** |
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* @param Result $result |
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* @return void |
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* @throws \OpenStack\Common\Error\BadResponseError |
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*/ |
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protected function connect(Result $result) |
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{ |
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$httpClient = new Client([ |
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'base_uri' => Utils::normalizeUrl($this->authUrl), |
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'handler' => HandlerStack::create(), |
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]); |
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$options = [ |
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'authUrl' => $this->authUrl, |
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'region' => $this->region, |
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'username' => $this->username, |
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'password' => $this->password, |
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'identityService' => Service::factory($httpClient), |
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]; |
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$openStack = new \OpenStack\OpenStack($options); |
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$objectStoreService = $openStack->objectStoreV1(['catalogName' => $this->serviceName]); |
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$this->container = $this->getOrCreateContainer($objectStoreService, $result); |
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} |
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} |
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Let’s assume that you have a directory layout like this:
and let’s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: