294 lines
7.3 KiB
PHP
294 lines
7.3 KiB
PHP
<?php
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namespace Illuminate\Foundation\Http;
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use Exception;
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use Throwable;
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use Illuminate\Routing\Router;
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use Illuminate\Pipeline\Pipeline;
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use Illuminate\Support\Facades\Facade;
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use Illuminate\Contracts\Foundation\Application;
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use Illuminate\Contracts\Http\Kernel as KernelContract;
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use Symfony\Component\Debug\Exception\FatalThrowableError;
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class Kernel implements KernelContract
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{
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/**
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* The application implementation.
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*
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* @var \Illuminate\Contracts\Foundation\Application
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*/
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protected $app;
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/**
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* The router instance.
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*
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* @var \Illuminate\Routing\Router
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*/
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protected $router;
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/**
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* The bootstrap classes for the application.
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*
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* @var array
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*/
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protected $bootstrappers = [
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'Illuminate\Foundation\Bootstrap\DetectEnvironment',
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'Illuminate\Foundation\Bootstrap\LoadConfiguration',
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'Illuminate\Foundation\Bootstrap\ConfigureLogging',
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'Illuminate\Foundation\Bootstrap\HandleExceptions',
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'Illuminate\Foundation\Bootstrap\RegisterFacades',
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'Illuminate\Foundation\Bootstrap\RegisterProviders',
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'Illuminate\Foundation\Bootstrap\BootProviders',
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];
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/**
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* The application's middleware stack.
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*
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* @var array
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*/
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protected $middleware = [];
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/**
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* The application's route middleware.
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*
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* @var array
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*/
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protected $routeMiddleware = [];
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/**
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* Create a new HTTP kernel instance.
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*
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* @param \Illuminate\Contracts\Foundation\Application $app
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* @param \Illuminate\Routing\Router $router
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* @return void
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*/
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public function __construct(Application $app, Router $router)
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{
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$this->app = $app;
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$this->router = $router;
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foreach ($this->routeMiddleware as $key => $middleware) {
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$router->middleware($key, $middleware);
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}
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}
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/**
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* Handle an incoming HTTP request.
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*
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* @param \Illuminate\Http\Request $request
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* @return \Illuminate\Http\Response
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*/
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public function handle($request)
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{
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try {
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$request->enableHttpMethodParameterOverride();
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$response = $this->sendRequestThroughRouter($request);
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} catch (Exception $e) {
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$this->reportException($e);
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$response = $this->renderException($request, $e);
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} catch (Throwable $e) {
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$e = new FatalThrowableError($e);
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$this->reportException($e);
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$response = $this->renderException($request, $e);
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}
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$this->app['events']->fire('kernel.handled', [$request, $response]);
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return $response;
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}
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/**
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* Send the given request through the middleware / router.
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*
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* @param \Illuminate\Http\Request $request
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* @return \Illuminate\Http\Response
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*/
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protected function sendRequestThroughRouter($request)
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{
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$this->app->instance('request', $request);
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Facade::clearResolvedInstance('request');
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$this->bootstrap();
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return (new Pipeline($this->app))
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->send($request)
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->through($this->app->shouldSkipMiddleware() ? [] : $this->middleware)
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->then($this->dispatchToRouter());
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}
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/**
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* Call the terminate method on any terminable middleware.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Illuminate\Http\Response $response
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* @return void
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*/
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public function terminate($request, $response)
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{
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$middlewares = $this->app->shouldSkipMiddleware() ? [] : array_merge(
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$this->gatherRouteMiddlewares($request),
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$this->middleware
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);
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foreach ($middlewares as $middleware) {
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list($name, $parameters) = $this->parseMiddleware($middleware);
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$instance = $this->app->make($name);
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if (method_exists($instance, 'terminate')) {
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$instance->terminate($request, $response);
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}
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}
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$this->app->terminate();
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}
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/**
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* Gather the route middleware for the given request.
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*
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* @param \Illuminate\Http\Request $request
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* @return array
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*/
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protected function gatherRouteMiddlewares($request)
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{
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if ($request->route()) {
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return $this->router->gatherRouteMiddlewares($request->route());
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}
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return [];
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}
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/**
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* Parse a middleware string to get the name and parameters.
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*
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* @param string $middleware
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* @return array
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*/
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protected function parseMiddleware($middleware)
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{
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list($name, $parameters) = array_pad(explode(':', $middleware, 2), 2, []);
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if (is_string($parameters)) {
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$parameters = explode(',', $parameters);
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}
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return [$name, $parameters];
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}
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/**
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* Add a new middleware to beginning of the stack if it does not already exist.
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*
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* @param string $middleware
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* @return $this
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*/
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public function prependMiddleware($middleware)
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{
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if (array_search($middleware, $this->middleware) === false) {
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array_unshift($this->middleware, $middleware);
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}
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return $this;
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}
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/**
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* Add a new middleware to end of the stack if it does not already exist.
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*
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* @param string $middleware
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* @return $this
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*/
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public function pushMiddleware($middleware)
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{
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if (array_search($middleware, $this->middleware) === false) {
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$this->middleware[] = $middleware;
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}
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return $this;
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}
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/**
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* Bootstrap the application for HTTP requests.
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*
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* @return void
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*/
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public function bootstrap()
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{
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if (! $this->app->hasBeenBootstrapped()) {
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$this->app->bootstrapWith($this->bootstrappers());
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}
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}
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/**
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* Get the route dispatcher callback.
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*
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* @return \Closure
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*/
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protected function dispatchToRouter()
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{
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return function ($request) {
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$this->app->instance('request', $request);
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return $this->router->dispatch($request);
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};
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}
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/**
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* Determine if the kernel has a given middleware.
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*
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* @param string $middleware
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* @return bool
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*/
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public function hasMiddleware($middleware)
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{
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return array_key_exists($middleware, array_flip($this->middleware));
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}
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/**
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* Get the bootstrap classes for the application.
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*
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* @return array
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*/
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protected function bootstrappers()
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{
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return $this->bootstrappers;
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}
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/**
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* Report the exception to the exception handler.
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*
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* @param \Exception $e
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* @return void
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*/
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protected function reportException(Exception $e)
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{
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$this->app['Illuminate\Contracts\Debug\ExceptionHandler']->report($e);
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}
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/**
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* Render the exception to a response.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Exception $e
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* @return \Symfony\Component\HttpFoundation\Response
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*/
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protected function renderException($request, Exception $e)
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{
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return $this->app['Illuminate\Contracts\Debug\ExceptionHandler']->render($request, $e);
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}
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/**
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* Get the Laravel application instance.
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*
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* @return \Illuminate\Contracts\Foundation\Application
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*/
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public function getApplication()
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{
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return $this->app;
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}
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}
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