The HttpKernelInterface is a lie (tnphp)

Transcript

1. the
   HttpKernelInterface
   is a lie
2. @igorwesome
4. “Interface” Protocol Communication Message passing
5. Catherine Please, from The Noun Project
6. Paulo Sá Ferreira - Purple Matter, from The Noun Project
7. hi!
10. 1001010111010010000110101 Massimiliano Mauro, from The Noun Project
11. Sergey Shmidt, from The Noun Project aloha!
12. yay!
18. Universal Interface
21. 1234 4321
22. foo bar baz foo baz Patrick n Hawaii, from The Noun Project
23. foo moo Anuar Zhumaev, from The Noun Project
24. find src -name '*.php' | grep -iv tests | cut -f2- -d/ | cut -f1 -d\. | awk '{ print length, $0 }' | sort -n | tr / \\ ;
25. Tim Boelaars, from The Noun Project
27. nc
28. /\_/\ / 0 0 \ ====v==== \ W / | | _ / ___ \ / / / \ \ | (((-----)))-' / ( ___ \__.=|___E /
30. data Dmitry Baranovskiy, from The Noun Project
31. xinetd
33. /etc/xinet.d/<service> service <service> { disable = no socket_type = stream protocol = tcp user = <user> wait = no server = /usr/local/bin/<program> }
34. /etc/xinet.d/fortune service fortune { disable = no socket_type = stream protocol = tcp user = xinetd wait = no server = /usr/local/bin/fortune }
35. #!/bin/bash fortune | cowsay
36. $ nc <host> 7777
37. $ nc <host> 7777 ______________________________________ < Eat right, stay fit, and die anyway. > -------------------------------------- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || ||
38. /etc/xinet.d/cowsay service cowsay { disable = no socket_type = stream protocol = tcp user = xinetd wait = no server = /usr/games/cowsay }
39. $ echo 'moo' | nc <host> 7778
40. #!/usr/bin/php <?php ! while (!feof(STDIN)) { echo transform(fgets(STDIN)); }
41. $ echo 'moo' | nc <host> 7778 _____ < moo > ----- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || ||
42. cgi
43. The Common Gateway Interface (CGI) [22]! allows an HTTP [1], [4] server and a CGI! script to share responsibility for responding! to client requests. RFC 3875
44. xinetd tcp http httpd
45. http httpd script cgi
46. script env vars data headers data
47. GET / HTTP/1.1 Host: igor.io Accept: */* REQUEST_METHOD = GET PATH_INFO = / HTTP_HOST = igor.io HTTP_ACCEPT = */* SERVER_NAME = igor.io
48. Content-Type: text/html ! <!DOCTYPE html> <html> ... </html>
49. fcgi
50. script
51. sockets are
    the new pipes
52. • 1991: HTTP • 1993: CGI • 1995: PHP • 1996: FastCGI
53. • 1997: Java Servlet • 2003: Python WSGI • 2007: Ruby Rack • 2009: Perl PSGI • 2011: Symfony2 HttpKernelInterface
54. rack
55. class HelloWorld def call(env) [ 200, {"Content-Type" => "text/plain"}, ["Hello world!"] ] end end
56. sapi
57. $_SERVER
    header
    echo
    exit
58. HttpKernelInterface
59. interface HttpKernelInterface! {! /*** @return Response */! public function handle(Request $request);! }
60. sapi kernel
62. “legacy” apps: it’s all great until exit;
63. myths:
    !
64. myths:
    caching
    
65. myths:
    caching (use varnish)
    
66. myths:
    caching (use varnish)
    functional tests
67. CgiHttpKernel
    adapter from kernel to cgi
    functional test “legacy” apps
68. kernel CGI
69. kernel CGI anything!
70. $kernel = new CgiHttpKernel(__DIR__.'/app'); ! $request = Request::create('/index.php'); $response = $kernel->handle($request); ! var_dump($response->getContent());
71. use Symfony\Component\HttpKernel\Client; ! $client = new Client($kernel); ! $crawler = $client->request('GET', '/index.php');
72. caution: it’s slow
    (WIP: FcgiHttpKernel)
73. Where is the value?
74. REQ REP
75. fcgi roles
76. authorizer httpd responder filter
77. rack
    middlewares
78. HttpKernel middlewares
79. $app = new CallableHttpKernel(function ($request) { return new Response('Hello World!'); });
80. class Logger implements HttpKernelInterface { private $app; private $logger; ! public function __construct(HttpKernelInterface $app, LoggerInterface $logger) { $this->app = $app; $this->logger = $logger; } ! public function handle(Request $request, ...) { $response = $this->app->handle($request, $type, $catch); ! $this->log($request, $response); ! return $response; } ! private function log(Request $request, Response $response) { ... } }
81. $app = new Logger( $app, new Monolog\Logger() );
82. use Symfony\Component\HttpKernel\HttpCache\HttpCache; use Symfony\Component\HttpKernel\HttpCache\Store; $app = new HttpCache( $app, new Store(__DIR__.'/cache') );
83. use Symfony\Component\HttpKernel\HttpCache\HttpCache; use Symfony\Component\HttpKernel\HttpCache\Store; $app = new HttpCache( $app, new Store(__DIR__.'/cache') ); use varnish!
84. App Logger Authentication Session
86. do something before or after every request
87. different take on
    event listeners
88. class Foo implements HttpKernelInterface { private $app; ! public function __construct(HttpKernelInterface $app) { $this->app = $app; } ! public function handle(Request $request, ...) { $response = $this->app->handle($request, $type, $catch); ! return $response; } } 1 2 3
89. UrlMap $blog = new Silex\Application(); ! $blog->get('/', function () { return 'This is the blog!'; }); ! $app = new Stack\UrlMap($app, [ '/blog' => $blog, ]);
90. Session $app = new CallableHttpKernel(function ($request) { $session = $request->getSession(); ... }); ! $app = new Stack\Session($app);
91. OAuth $app = new Igorw\Stack\OAuth($app, [ 'key' => 'foo', 'secret' => 'bar', 'callback_url' => 'http://localhost:8080/auth/verify', 'success_url' => '/', 'failure_url' => '/auth', ]); ! $app = new Stack\Session($app);
92. OAuth $request->attributes->get('oauth.token');
93. Composition!
94. $stack = (new Stack\Builder()) ->push('Stack\Session') ->push('Igorw\Stack\OAuth', [...]) ->push('Foo'); ! $app = $stack->resolve($app);
95. • GeoIp • IpRestrict • Backstage • Basic Authentication • Hawk • CORS Community
96. It doesn’t stop there
97. • Authentication • Debug toolbar • Injected routes • Signed cookies • Asset management • Force SSL • Error handling
98. ( )
99. Choose wisely
100. Michael Rowe, from The Noun Project
101. • joind.in/9990 • stackphp.com • @stackphp • @igorwesome • github.com/igorw/CgiHttpKernel