73 lines
2.5 KiB
PHP
73 lines
2.5 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace PhpQml\Bridge;
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use Symfony\Component\HttpFoundation\JsonResponse;
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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\Core\Authentication\Token\TokenInterface;
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use Symfony\Component\Security\Core\Exception\AuthenticationException;
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use Symfony\Component\Security\Http\Authenticator\AbstractAuthenticator;
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use Symfony\Component\Security\Http\Authenticator\Passport\Badge\UserBadge;
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use Symfony\Component\Security\Http\Authenticator\Passport\Passport;
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use Symfony\Component\Security\Http\Authenticator\Passport\SelfValidatingPassport;
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/**
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* Validates the per-session bearer token shared between the Qt host
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* and the Symfony backend.
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*
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* In dev mode the token is read from `.env.local`; in bundled mode the
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* Qt host generates it per session and passes it to FrankenPHP via env.
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* See PLAN.md §3 (*Run modes*, *Edge cases — Per-session secret rotation*).
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*/
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final class SessionAuthenticator extends AbstractAuthenticator
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{
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public function __construct(
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#[\SensitiveParameter]
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private readonly string $expectedToken,
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) {
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}
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public function supports(Request $request): ?bool
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{
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return $request->headers->has('Authorization');
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}
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public function authenticate(Request $request): Passport
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{
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$header = (string) $request->headers->get('Authorization', '');
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if (!str_starts_with($header, 'Bearer ')) {
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throw new AuthenticationException('Bearer token missing.');
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}
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$token = substr($header, 7);
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if ($this->expectedToken === '' || !hash_equals($this->expectedToken, $token)) {
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throw new AuthenticationException('Bearer token invalid.');
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}
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// Single-session model — there is one bridge "user", not per-end-user auth.
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return new SelfValidatingPassport(new UserBadge('bridge'));
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}
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public function onAuthenticationSuccess(Request $request, TokenInterface $token, string $firewallName): ?Response
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{
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return null;
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}
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public function onAuthenticationFailure(Request $request, AuthenticationException $exception): ?Response
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{
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return new JsonResponse(
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[
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'type' => 'about:blank',
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'title' => 'Unauthorized',
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'status' => Response::HTTP_UNAUTHORIZED,
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'detail' => $exception->getMessage(),
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],
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Response::HTTP_UNAUTHORIZED,
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['Content-Type' => 'application/problem+json'],
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);
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}
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}
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