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<?php |
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/** |
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* Copyright 2016 - 2018, Cake Development Corporation (http://cakedc.com) |
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* |
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* Licensed under The MIT License |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright Copyright 2016 - 2018, Cake Development Corporation (http://cakedc.com) |
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php) |
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*/ |
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namespace CakeDC\Api\Service\Renderer; |
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use Cake\Core\Configure; |
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use Cake\Utility\Hash; |
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use CakeDC\Api\Service\Action\Result; |
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use Cake\Http\Response; |
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use Cake\Log\LogTrait; |
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use Exception; |
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use League\Flysystem\File; |
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use League\Flysystem\FileNotFoundException; |
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use League\Flysystem\Filesystem; |
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use Zend\Diactoros\Stream; |
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/** |
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* Class FlysystemRenderer to render file using Flysystem library |
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*/ |
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class FlysystemRenderer extends FileRenderer |
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{ |
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use LogTrait; |
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/** |
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* Builds the HTTP response. |
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* |
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* @param Result $result The result object returned by the Service. |
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* @return bool |
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*/ |
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public function response(Result $result = null) |
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{ |
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$data = $result->getData(); |
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try { |
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$file = $this->getFile( |
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Hash::get($data, 'filesystem'), |
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Hash::get($data, 'path') |
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); |
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$this->_service->setResponse( |
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$this->deliverAsset($this->_service->getResponse(), $file) |
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); |
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} catch (FileNotFoundException $e) { |
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$response = $this->_service->getResponse() |
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->withStatus(404); |
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$this->_service->setResponse($response); |
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} |
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return true; |
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} |
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/** |
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* Get flystem file object |
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* |
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* @param Filesystem $filesystem custom filesystem |
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* @param string $path of file at filesystem |
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* @return File |
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*/ |
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protected function getFile(Filesystem $filesystem, $path) |
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{ |
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return $filesystem->get($path); |
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} |
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/** |
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* Deliver the asset stream in body |
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* |
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* @param Response $response service response |
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* @param File $file file object |
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* @return Response |
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*/ |
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public function deliverAsset(Response $response, File $file) |
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{ |
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$contentType = $file->getType(); |
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$modified = $file->getTimestamp(); |
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$expire = strtotime(Configure::write('Api.Flysystem.expire')); |
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$maxAge = $expire - time(); |
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$stream = new Stream($file->readStream()); |
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return $response->withBody($stream) |
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// Content |
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->withHeader('Content-Type', $contentType) |
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// Cache |
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->withHeader('Cache-Control', 'public,max-age=' . $maxAge) |
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->withHeader('Date', gmdate('D, j M Y G:i:s \G\M\T', time())) |
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->withHeader('Last-Modified', gmdate('D, j M Y G:i:s \G\M\T', $modified)) |
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->withHeader('Expires', gmdate('D, j M Y G:i:s \G\M\T', $expire)); |
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} |
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/** |
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* Handle error setting a response status |
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* |
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* @param Exception $exception thrown at service or action |
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* |
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* @return void |
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*/ |
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public function error(Exception $exception) |
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{ |
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$code = $exception->getCode(); |
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$response = $this->_service->getResponse() |
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->withStatus($code ? $code : 500); |
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$this->log($exception); |
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$this->_service->setResponse($response); |
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} |
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} |
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CakeDC /
cakephp-api
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If a variable is not always an object, we recommend to add an additional type check to ensure your method call is safe: