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ProklUngProklUng
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‎.gitignore‎

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.idea
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/vendor/
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composer.lock
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.phpunit.result.cache

‎Controller/ControllerMetadata.php‎

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<?php
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declare(strict_types=1);
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namespace Prokl\SymfonyMiddlewareBundle\Controller;
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/**
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* Class ControllerMetadata
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* @package Prokl\SymfonyMiddlewareBundle\Controller
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*/
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final class ControllerMetadata
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{
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/**
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* @var string $controllerFqcn
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*/
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private $controllerFqcn;
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/**
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* @var string $controllerAction
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*/
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private $controllerAction;
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/**
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* ControllerMetadata constructor.
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*
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* @param string $controllerFqcn
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* @param string $controllerAction
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*/
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public function __construct(string $controllerFqcn, string $controllerAction)
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{
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$this->controllerFqcn = $controllerFqcn;
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$this->controllerAction = $controllerAction;
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}
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/**
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* @return string
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*/
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public function getControllerFqcn(): string
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{
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return $this->controllerFqcn;
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}
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/**
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* @return string
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*/
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public function getControllerAction(): string
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{
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return $this->controllerAction;
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}
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}

‎Controller/ControllerParser.php‎

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<?php
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declare(strict_types=1);
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namespace Prokl\SymfonyMiddlewareBundle\Controller;
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/**
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* Class ControllerParser
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* @package Prokl\SymfonyMiddlewareBundle\Controller
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*/
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final class ControllerParser implements ControllerParserInterface
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{
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/**
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* @inheritDoc
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*/
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public function parse(callable $controller): ControllerMetadata
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{
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if (is_array($controller)) {
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return new ControllerMetadata(get_class($controller[0]), $controller[1]);
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}
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return new ControllerMetadata(get_class($controller), '__invoke');
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}
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}

‎Controller/ControllerParserInterface.php‎

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<?php
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declare(strict_types=1);
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namespace Prokl\SymfonyMiddlewareBundle\Controller;
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/**
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* Interface ControllerParserInterface
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* @package Prokl\SymfonyMiddlewareBundle\Controller
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*/
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interface ControllerParserInterface
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{
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/**
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* @param callable $controller
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*
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* @return ControllerMetadata
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*/
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public function parse(callable $controller): ControllerMetadata;
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}

‎ControllersMiddleware/CsrfMiddleware.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware;
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use Prokl\SymfonyMiddlewareBundle\ControllersMiddleware\Exceptions\WrongCsrfException;
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use Prokl\SymfonyMiddlewareBundle\MiddlewareInterface;
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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\Security\Csrf\CsrfToken;
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use Symfony\Component\Security\Csrf\CsrfTokenManagerInterface;
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/**
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* Class CsrfMiddleware
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* @package Local\Services\ControllerMiddleware
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*
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* @since 19.11.2020
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*/
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class CsrfMiddleware implements MiddlewareInterface
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{
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/**
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* @var CsrfTokenManagerInterface $csrfTokenManager CSRF токен менеджер.
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*/
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private $csrfTokenManager;
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/**
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* CsrfMiddleware constructor.
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*
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* @param CsrfTokenManagerInterface $csrfTokenManager CSRF токен менеджер.
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*/
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public function __construct(CsrfTokenManagerInterface $csrfTokenManager)
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{
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$this->csrfTokenManager = $csrfTokenManager;
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}
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/**
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* @inheritDoc
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*
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* @throws WrongCsrfException Невалидный токен.
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*/
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public function handle(Request $request): ?Response
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{
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$typeRequest = $request->server->get('REQUEST_METHOD');
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$token = $request->query->get('csrf_token');
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if ($typeRequest !== 'GET') {
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$token = $request->request->get('csrf_token');
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}
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$bValidToken = $this->csrfTokenManager->isTokenValid(
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new CsrfToken('app', $token)
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);
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if (!$bValidToken) {
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throw new WrongCsrfException('Security error: Invalid CSRF token.');
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}
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return null;
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}
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}

‎ControllersMiddleware/ExampleMiddleware.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware;
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use Prokl\SymfonyMiddlewareBundle\MiddlewareInterface;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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/**
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* Class ExampleMiddleware
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* @package Local\Services\ControllerMiddleware
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*
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* @since 19.11.2020
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*/
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class ExampleMiddleware implements MiddlewareInterface
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{
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public function handle(Request $request): ?Response
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{
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if ($request->query->get('test')) {
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return new Response('OK2');
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}
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return null;
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}
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}

‎ControllersMiddleware/Exceptions/NotAllowedTypeRequestException.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware\Exceptions;
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use Prokl\BaseException\BaseException;
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/**
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* Class NotAllowedTypeRequestException
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* @package Local\Services\ControllerMiddleware\Exceptions
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*
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* @since 19.11.2020
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*/
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class NotAllowedTypeRequestException extends BaseException
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{
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}

‎ControllersMiddleware/Exceptions/WrongCsrfException.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware\Exceptions;
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use Prokl\BaseException\BaseException;
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use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
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/**
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* Class WrongCsrfException
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* @package Local\Services\ControllerMiddleware\Exceptions
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*
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* @since 19.11.2020
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*/
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class WrongCsrfException extends BaseException implements RequestExceptionInterface
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{
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}

‎ControllersMiddleware/OnlyAjaxMiddleware.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware;
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use Prokl\SymfonyMiddlewareBundle\MiddlewareInterface;
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use Prokl\SymfonyMiddlewareBundle\ControllersMiddleware\Exceptions\NotAllowedTypeRequestException;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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/**
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* Class OnlyAjaxMiddleware
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* Only AJAX call allowed.
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* @package Local\Services\ControllerMiddleware
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*
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* @since 19.11.2020
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*/
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class OnlyAjaxMiddleware implements MiddlewareInterface
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{
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/**
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* @inheritDoc
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*
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* @throws NotAllowedTypeRequestException
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*/
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public function handle(Request $request): ?Response
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{
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if (!$request->isXmlHttpRequest()) {
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throw new NotAllowedTypeRequestException(
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'Only AJAX call allowed.'
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);
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}
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return null;
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}
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}

‎ControllersMiddleware/StaticFileMiddleware.php‎

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<?php
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namespace Prokl\SymfonyMiddlewareBundle\ControllersMiddleware;
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use Prokl\SymfonyMiddlewareBundle\ControllersMiddleware\Utils\ContentTypeMapping;
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use Prokl\SymfonyMiddlewareBundle\MiddlewareInterface;
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use LogicException;
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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\StreamedResponse;
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/**
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* Class StaticFileMiddleware
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* @package Local\Services\ControllerMiddleware
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*
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* @since 23.02.2021
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*/
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class StaticFileMiddleware implements MiddlewareInterface
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{
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/**
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* @var string $publicDirectory Директория, где лежат файлы.
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*/
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private $publicDirectory;
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/**
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* @var string $hashAlgorithm Алгоритм хэширования.
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*/
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private $hashAlgorithm;
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/**
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* StaticFileMiddleware constructor.
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*
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* @param string $publicDirectory Директория, где лежат файлы.
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* @param string $hashAlgorithm Алгоритм хэширования.
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*/
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public function __construct(
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string $publicDirectory = '',
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string $hashAlgorithm = 'md5'
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) {
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$this->publicDirectory = $publicDirectory;
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$this->hashAlgorithm = $hashAlgorithm;
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}
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/**
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* @inheritDoc
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*/
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public function handle(Request $request): ?Response
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{
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if (!in_array($this->hashAlgorithm, hash_algos(), true)) {
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throw new LogicException(sprintf('Invalid or not supported hash algorithm: "%s"', $this->hashAlgorithm));
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}
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if ($this->publicDirectory === '') {
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throw new LogicException(
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sprintf('Public upload directory not configured. You forget initialize StaticFileMiddleware as service?')
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);
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}
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$target = $this->getRequestTarget($request);
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if ($target === '') {
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return null;
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}
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$filename = $this->publicDirectory . $target;
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$hash = hash_file($this->hashAlgorithm, $filename);
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if (!is_readable($filename)) {
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return null;
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}
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$response = new StreamedResponse();
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if ($request->headers->get('If-None-Match') === $hash) {
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$response->setStatusCode(304);
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}
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$response->headers->set('Content-Length', (string) filesize($filename));
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$response->headers->set(
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'Content-Disposition',
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'attachment; filename="'.$target.'"'
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);
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$response->headers->set('ETag', $hash);
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$this->addContentType($response, $target);
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$response->setCallback(function () use ($filename) {
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echo (string)file_get_contents($filename);
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});
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return $response;
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}
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/**
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* @param Request $request Request.
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*
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* @return string
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*/
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private function getRequestTarget(Request $request) : string
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{
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$target = '';
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if ($request->getQueryString()) {
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$target = $request->getQueryString();
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parse_str($target, $result);
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$target = (string)$result['file'];
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}
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return $target;
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}
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/**
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* Добавить content type.
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*
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* @param Response $response Response.
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* @param string $filename Имя файла.
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*
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* @return Response
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*/
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private function addContentType(Response $response, string $filename): Response
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{
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$extension = pathinfo($filename, PATHINFO_EXTENSION);
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if (array_key_exists($extension, ContentTypeMapping::CONTENT_TYPE_MAPPING)) {
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$response->headers->set('Content-Type', ContentTypeMapping::CONTENT_TYPE_MAPPING[$extension]);
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}
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return $response;
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}
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}

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