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<?php
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namespace uSILEX;
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use uSILEX\Exception\HttpExceptionInterface;
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use uSILEX\Exception\NotFoundHttpException;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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use Symfony\Component\HttpFoundation\RedirectResponse;
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use Symfony\Component\HttpFoundation\StreamedResponse;
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use Symfony\Component\HttpFoundation\JsonResponse;
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use Pimple\Container;
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use Pimple\ServiceProviderInterface;
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/*
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* Inspired from Silex application
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*/
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class Application extends Container
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{
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const VERSION = '1.0.0';
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protected $providers = [];
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protected $onRouteMatchListeners = [];
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protected $onResponseListeners = [];
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protected $routes = [];
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protected $booted = false;
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/**
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* Instantiate a new Application.
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*
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* Objects and parameters can be passed as argument to the constructor.
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*
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*/
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public function __construct()
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{
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parent::__construct();
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$this['debug'] = false;
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$this['version'] = static::VERSION;
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$this['error_msg.short_template'] = 'Error %s';
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$this['error_msg.full_template'] = "Error %s - %s \nTrace info:\n%s\n";
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$this['RouteMatcher'] = function($c) {
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return new RouteMatcher($c);
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};
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$this['ControllerResolver'] = function($c) {
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return new ControllerResolver($c);
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};
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}
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/**
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* Transform a PHP exception into an http error message.
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*
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* @param \Exception $e a trapped exception
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*
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*/
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protected function exceptionToResponse(\Throwable $e): Response
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{
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if ($e instanceof HttpExceptionInterface) {
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$response = new Response($e->getMessage(), $e->getStatusCode());
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} else {
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$response = new Response(
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$this['debug']
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?sprintf($this['error_msg.full_template'], $e->getCode(), $e->getMessage(), $e->getTraceAsString())
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:sprintf($this['error_msg.short_template'], $e->getCode()),
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Response::HTTP_INTERNAL_SERVER_ERROR
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);
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}
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return $response;
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}
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public function addRoute(Route $route): Container
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{
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$this->routes[] = $route;
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return $this;
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}
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public function getRoutes(): array
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{
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return $this->routes;
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}
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public function onRouteMatch(string $serviceName)
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{
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$this->onRouteMatchListeners[] = $serviceName;
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return $this;
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}
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public function onResponse(string $serviceName)
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{
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$this->onResponseListeners[] = $serviceName;
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return $this;
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}
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public function handleRequest(): Response
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{
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assert(isset($this['ControllerResolver']));
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assert(isset($this['request']));
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try {
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if (!$this->booted) {
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$this->boot();
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}
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// execute the controller action
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$route = $this['ControllerResolver']->getController();
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assert(isset($this[$route->getAction()]));
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// call onRouteMatch
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foreach( $this->onRouteMatchListeners as $serviceName) {
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$this[$serviceName];
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}
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$response = $this[$route->getAction()];
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} catch (\Throwable $e) {
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$response = $this->exceptionToResponse($e);
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}
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return $response;
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}
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/**
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* Registers a service provider.
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*
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* @param ServiceProviderInterface $provider A ServiceProviderInterface instance
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* @param array $values An array of values that customizes the provider
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*
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* @return Application
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*/
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public function register(ServiceProviderInterface $provider, array $values = [])
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{
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$this->providers[] = $provider;
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parent::register($provider, $values);
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return $this;
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}
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/**
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* Boots all service providers.
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*
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* This method is automatically called by handle(), but you can use it
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* to boot all service providers when not handling a request.
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*/
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public function boot()
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{
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if ($this->booted) {
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return;
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}
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$this->booted = true;
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foreach ($this->providers as $provider) {
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if ($provider instanceof BootableProviderInterface) {
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$provider->boot($this);
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}
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}
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}
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/**
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* Creates a streaming response.
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*
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* @param mixed $callback A valid PHP callback
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* @param int $status The response status code
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* @param array $headers An array of response headers
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*
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* @return StreamedResponse
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*/
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public function stream($callback = null, $status = 200, array $headers = [])
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{
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return new StreamedResponse($callback, $status, $headers);
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}
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/**
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* Convert some data into a JSON response.
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*
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* @param mixed $data The response data
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* @param int $status The response status code
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* @param array $headers An array of response headers
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*
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* @return JsonResponse
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*/
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public function json($data = [], $status = 200, array $headers = [])
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{
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return new JsonResponse($data, $status, $headers);
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}
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/**
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* Handles the request and delivers the response.
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*
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*/
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public function run()
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{
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// define $this['request'] just for testing purposes
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if (!isset($this['request'])) {
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$this['request'] = Request::createFromGlobals();
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}
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// define $this['response'] just for testing purposes
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if (!isset($this['response'])) {
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$this['response'] = $this->handleRequest();
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}
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// call onResponse hook
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foreach( $this->onResponseListeners as $serviceName) {
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$this['response'] = $this[$serviceName];
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}
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$this['response']->send();
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}
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} |
linkeddatacenter /
uSilex
