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Using HttpKernelInterface for Painless Integration
- 1. USING THE SYMFONY2 COMPONENTS FOR PAINLESS INTEGRATION C I A R A N M C N U L T Y L I G H T N I N G T A L K S S E S S I O N 1
- 3. ”SYMFONY2 IS A REUSABLE SET OF STANDALONE, DECOUPLED, AND COHESIVE PHP COMPONENTS THAT SOLVE COMMON WEB DEVELOPMENT PROBLEMS.” – F A B I E N P O T E N C I E R , 2 0 1 1
- 5. SYMFONY2 ADOPTION Driven by Components Out of 4994 packages that depend on Symfony: ! 1911 depend on the symfony/framework-bundle, ! 1985 depend on specific components, ! 1098 depend on symfony/symfony. http://zalas.eu/symfony2-adoption/
- 6. SYMFONY2 ADOPTION SHARED COMPONENTS ! = ! INTEROPERABILITY
- 8. REQUEST/RESPONSE MODEL HTTP REQUEST HTTP RESPONSE APPLICATION
- 9. REQUEST/RESPONSE MODEL HTTP REQUEST HTTP RESPONSE APPLICATION Request Object Response Object SymfonyComponentHttpFoundationRequest SymfonyComponentHttpFoundationResponse
- 10. REQUEST/RESPONSE MODEL HTTP REQUEST HTTP RESPONSE APPLICATION Request Object Response Object SymfonyComponentHttpFoundationRequest SymfonyComponentHttpFoundationResponse Kernel Interface SymfonyComponentHttpKernelHttpKernelInterface
- 11. KERNEL INTERFACE interface HttpKernelInterface { const MASTER_REQUEST = 1; const SUB_REQUEST = 2; ! /** * @return Response */ public function handle( Request $request, $type = self::MASTER_REQUEST, $catch = true ); }
- 12. SYMFONY FRAMEWORK USAGE $kernel = new AppKernel('prod', false); $kernel->loadClassCache(); ! $request = Request::createFromGlobals(); ! $response = $kernel->handle($request); ! $response->send();
- 13. DRUPAL 8 USAGE $request = Request::createFromGlobals(); ! $kernel = DrupalKernel::createFromRequest( $request, $autoloader, ‘prod' ); ! $response = $kernel->handle($request); ! $response->send();
- 14. HTTPKERNEL USAGE
- 15. WHAT IS THE BENEFIT?
- 16. SYMFONY2 PAGE CACHING $kernel = new AppKernel('prod', false); $kernel->loadClassCache(); ! $kernel = new AppCache($kernel); ! $request = Request::createFromGlobals(); ! $response = $kernel->handle($request); ! $response->send();
- 17. “Symfony's HttpKernelInterface provides a solid interface, which makes creating and sharing framework-agnostic HTTP filters a breeze”
- 18. WRITING A MIDDLEWARE class DrupalConPromoter implements HttpKernelInterface { private $innerKernel; ! public function __construct(HttpKernelInterface $kernel) { $this->innerKernel = $kernel; } ! public function handle( Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true ) { $response = $this->innerKernel->handle($request, $type, $catch); $newContent = str_replace( '<body>', '<body><h1>DRUPALCON ROCKS</h1>', $response->getContents()); $response->setContents($newContent); ! return $response; } }
- 19. USING OUR OWN MIDDLEWARE $kernel = new AppKernel('prod', false); $kernel->loadClassCache(); $kernel = new AppCache($kernel); ! $kernel = new DrupalConPromoter($kernel); ! $request = Request::createFromGlobals(); ! $response = $kernel->handle($request); ! $response->send();
- 20. AVAILABLE MIDDLEWARES CookieGuard - Encrypts/decrypts cookies ! GeoIP - Looks up country from IP and adds to Request ! CORS - Adds CORS headers ! Negotiation - Works out what content-type to send client ! IpRestrict - block blacklisted IP Requests ! Backstage - displays maintenance page if one exists ! + plenty more!
- 21. USING IN DRUPAL Problem: ’Edit index.php’ is not something a typical Drupal developer is happy with ! Solution: Middlewares are registered via the Service Container (another Symfony component) <service id=“my_drupalcon_promoter” class=“DrupalConPromoter”>" " <tag name=“http_middleware” priority=“1” />" </service>
- 22. RUNNING MULTIPLE KERNELS ! $request = Request::createFromGlobals(); ! $symfonyKernel = new AppKernel('prod', false); $symfonyKernel->loadClassCache(); ! $drupalKernel = DrupalKernel::createFromRequest( $request, $autoloader, 'prod' ); ! $kernel = UrlMap( $drupalKernel, ['/blog' => $symfonyKernel] ); ! $response = $kernel->handle($request); $response->send();
- 23. CIARAN MCNULTY ! @ciaranmcnulty ! Core contributor to PhpSpec ! BDD / Agile / DDD enthusiast ! Senior Trainer at Inviqa Group
- 24. See us on stand 309
- 25. WHAT DID YOU THINK? E V A U L A T E T H I S S E S S I O N - A M S T E R D A M 2 0 1 4 . D R U P A L . O R G / S C H E D U L E THANK YOU!