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<?php
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namespace Laravel\Sanctum\Http\Middleware;
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use Illuminate\Routing\Pipeline;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Str;
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class EnsureFrontendRequestsAreStateful
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{
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/**
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* Handle the incoming requests.
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*
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* @param \Illuminate\Http\Request $request
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* @param callable $next
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* @return \Illuminate\Http\Response
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*/
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public function handle($request, $next)
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{
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$this->configureSecureCookieSessions();
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return (new Pipeline(app()))->send($request)->through(
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static::fromFrontend($request) ? $this->frontendMiddleware() : []
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)->then(function ($request) use ($next) {
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return $next($request);
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});
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}
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/**
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* Configure secure cookie sessions.
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*
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* @return void
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*/
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protected function configureSecureCookieSessions()
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{
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config([
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'session.http_only' => true,
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'session.same_site' => 'lax',
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]);
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}
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/**
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* Get the middleware that should be applied to requests from the "frontend".
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*
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* @return array
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*/
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protected function frontendMiddleware()
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{
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$middleware = array_values(array_filter(array_unique([
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config('sanctum.middleware.encrypt_cookies', \Illuminate\Cookie\Middleware\EncryptCookies::class),
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\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
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\Illuminate\Session\Middleware\StartSession::class,
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config('sanctum.middleware.validate_csrf_token'),
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config('sanctum.middleware.verify_csrf_token', \Illuminate\Foundation\Http\Middleware\VerifyCsrfToken::class),
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])));
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array_unshift($middleware, function ($request, $next) {
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$request->attributes->set('sanctum', true);
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return $next($request);
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});
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return $middleware;
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}
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/**
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* Determine if the given request is from the first-party application frontend.
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*
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* @param \Illuminate\Http\Request $request
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* @return bool
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*/
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public static function fromFrontend($request)
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{
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$domain = $request->headers->get('referer') ?: $request->headers->get('origin');
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if (is_null($domain)) {
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return false;
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}
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$domain = Str::replaceFirst('https://', '', $domain);
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$domain = Str::replaceFirst('http://', '', $domain);
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$domain = Str::endsWith($domain, '/') ? $domain : "{$domain}/";
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$stateful = array_filter(config('sanctum.stateful', []));
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return Str::is(Collection::make($stateful)->map(function ($uri) {
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return trim($uri).'/*';
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})->all(), $domain);
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}
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}
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