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<?php |
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/* |
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* This file is part of the prooph/php-ddd-cargo-sample. |
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* (c) Alexander Miertsch <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* Date: 8/8/15 - 12:37 AM |
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*/ |
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namespace Codeliner\CargoUI; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* Class Main |
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* |
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* This middleware is the main entry point to the CargoUI. |
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* It compiles riot.js tags and put them into a HTML5 layout together |
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* with some js libs and bootstrap css. |
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* If enabled it caches the compiled layout to respond fast on subsequent requests |
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* and let the riot SPA handle the client logic. |
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* |
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* @package Codeliner\CargoUI |
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* @author Alexander Miertsch <[email protected]> |
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*/ |
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final class Main |
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{ |
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/** |
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* @var bool |
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*/ |
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private $cacheEnabled; |
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/** |
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* @var string |
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*/ |
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private $layout; |
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/** |
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* @var string |
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*/ |
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private $layoutCacheFile = 'data/cache/layout.phtml'; |
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/** |
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* @var RiotCompiler |
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*/ |
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private $riotCompiler; |
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/** |
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* @param string $layout |
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* @param bool $cacheEnabled |
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* @param RiotCompiler $riotCompiler |
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*/ |
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public function __construct($layout, $cacheEnabled, RiotCompiler $riotCompiler) |
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{ |
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$this->layout = (string)$layout; |
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$this->cacheEnabled = (bool)$cacheEnabled; |
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$this->riotCompiler = $riotCompiler; |
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} |
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/** |
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* Render layout and write it to the response body |
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* |
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* @param RequestInterface $request |
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* @param ResponseInterface $response |
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* @param callable|null $next |
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* @return ResponseInterface |
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*/ |
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public function __invoke(RequestInterface $request, ResponseInterface $response, callable $next = null) |
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{ |
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$layout = $this->renderLayout(); |
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$response->getBody()->write($layout); |
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return $response; |
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} |
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private function renderLayout() |
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{ |
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if ($this->cacheEnabled && file_exists($this->layoutCacheFile)) { |
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return file_get_contents($this->layoutCacheFile); |
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} |
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$layout = ""; |
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try { |
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ob_start(); |
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$includeReturn = include $this->layout; |
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$layout = ob_get_clean(); |
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} catch (\Exception $ex) { |
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ob_end_clean(); |
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throw $ex; |
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} |
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if ($includeReturn === false && empty($layout)) { |
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throw new \UnexpectedValueException(sprintf( |
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'Unable to render layout "%s"; file include failed', |
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$this->layout |
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)); |
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} |
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if ($this->cacheEnabled) { |
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file_put_contents($this->layoutCacheFile, $layout); |
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} |
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return $layout; |
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} |
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/** |
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* @return string |
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*/ |
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private function compileRiot() |
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{ |
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return $this->riotCompiler->compileToRiotStatements(); |
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} |
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} |
codeliner /
php-ddd-cargo-sample
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.