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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 5.6 |
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* |
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* @copyright 2012 - 2016 Gixx-web (http://www.gixx-web.com) |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* |
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* @link http://www.gixx-web.com |
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*/ |
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namespace WebHemi\Application\Web; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use WebHemi\Adapter\DependencyInjection\DependencyInjectionAdapterInterface; |
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use WebHemi\Adapter\Http\HttpAdapterInterface; |
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use WebHemi\Application\ApplicationInterface; |
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use WebHemi\Config\ConfigInterface; |
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use InvalidArgumentException; |
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/** |
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* Class WebApplication. |
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*/ |
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class WebApplication implements ApplicationInterface |
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{ |
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const MODULE_ADMIN = 'Admin'; |
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const MODULE_SITE = 'Website'; |
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/** @var DependencyInjectionAdapterInterface */ |
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private $container; |
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/** @var ConfigInterface */ |
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private $config; |
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/** @var array */ |
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private $environmentData = [ |
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'GET' => [], |
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'POST' => [], |
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'SERVER' => [], |
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'COOKIE' => [], |
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'FILES' => [], |
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]; |
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/** |
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* ApplicationInterface constructor. |
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* |
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* @param DependencyInjectionAdapterInterface $container |
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* @param ConfigInterface $config |
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*/ |
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public function __construct(DependencyInjectionAdapterInterface $container, ConfigInterface $config) |
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{ |
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$this->container = $container; |
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$this->config = $config; |
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} |
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/** |
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* Returns the DI Adapter instance. |
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* |
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* @return DependencyInjectionAdapterInterface |
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*/ |
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public function getContainer() |
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{ |
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return $this->container; |
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} |
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/** |
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* Returns the Configuration. |
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* |
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* @return ConfigInterface |
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*/ |
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public function getConfig() |
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{ |
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return $this->config; |
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} |
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/** |
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* Sets application environments according to the super globals. |
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* |
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* @param string $key |
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* @param array $data |
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* |
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* @throws InvalidArgumentException |
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* |
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* @return $this |
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*/ |
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public function setEnvironmentData($key, array $data) |
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{ |
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if (!isset($this->environmentData[$key])) { |
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throw new InvalidArgumentException(sprintf('The key "%s" is not a valid superglobal name.', $key)); |
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} |
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$this->environmentData[$key] = $data; |
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return $this; |
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} |
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/** |
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* Runs the application. This is where the magic happens. |
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* According tho the environment settings this must build up the middleware pipeline and execute it. |
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* |
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* Pre-Routing Middleware can be; priority < 0: |
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* - LockCheck - check if the client IP is banned > S102|S403 |
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* - Auth - if the user is not logged in, but there's a "Remember me" cookie, then logs in > S102 |
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* |
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* Routing Middleware is fixed; priority = 0: |
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* - A middleware that routes the incoming Request and delegates to the matched middleware. > S102|S404|S405 |
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* The RouteResult should be attached to the Request. |
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* If the Routing is not defined explicitly in the pipeline, then it will be injected with priority 0. |
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* |
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* Post-Routing Middleware can be; priority between 0 and 100: |
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* - Acl - checks if the given route is available for the client. Also checks the auth > S102|S401|S403 |
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* - CacheReader - checks if a suitable response body is cached. > S102|S200 |
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* |
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* Dispatcher Middleware is fixed; priority = 100: |
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* - A middleware which gets the corresponding Action middleware and applies it > S102|S500 |
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* If the Dispatcher is not defined explicitly in the pipeline, then it will be injected with priority 100. |
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* The Dispatcher should not set the response Status Code to 200 to let Post-Dispatchers to be called. |
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* |
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* Post-Dispatch Middleware can be; priority > 100: |
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* - CacheWriter - writes response body into DataStorage (DB, File etc.) > S102 |
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* |
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* Final Middleware is fixed: |
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* - This middleware behaves a bit differently. It cannot be ordered, it's always the last called middleware: |
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* - when the middleware pipeline reached its end (typically when the Status Code is still 102) |
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* - when one item of the middleware pipeline returns with return response (status code is set to 200|40*|500) |
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* - when during the pipeline process an Exception is thrown. |
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* |
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* When the middleware pipeline is finished the application prints the header and the output. |
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* |
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* @return void |
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*/ |
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public function run() |
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{ |
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$this->container |
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->setServiceArgument(HttpAdapterInterface::class, $this->environmentData['SERVER']) |
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->setServiceArgument(HttpAdapterInterface::class, $this->environmentData['GET']) |
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->setServiceArgument(HttpAdapterInterface::class, $this->environmentData['POST']) |
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->setServiceArgument(HttpAdapterInterface::class, $this->environmentData['COOKIE']) |
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->setServiceArgument(HttpAdapterInterface::class, $this->environmentData['FILES']); |
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/** @var HttpAdapterInterface $httpAdapter */ |
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$httpAdapter = $this->getContainer()->get(HttpAdapterInterface::class); |
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/** @var ServerRequestInterface $request */ |
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$request = $httpAdapter->getRequest(); |
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/** @var ResponseInterface $response */ |
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$response = $httpAdapter->getResponse(); |
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/* -- Pseudo code for the implementation |
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var request |
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var response |
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var pipeline |
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var finalMiddleware |
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FOR var middleware IN pipeline |
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response = CALL middleware WITH request, response |
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IF response.header.statusCode IS NOT 102 THEN |
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BREAK |
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END IF |
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END FOR |
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response = CALL finalMiddleware WITH request, response |
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SEND response.header |
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PRINT response.body |
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EXIT |
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*/ |
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echo '<h1>Hello world!</h1>'; |
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echo $request->getMethod(); |
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echo $response->getBody(); |
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} |
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} |
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Gixx /
WebHemi
