160 lines
4.3 KiB
PHP
160 lines
4.3 KiB
PHP
<?php
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namespace Inertia;
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use Closure;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\Redirect;
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use Symfony\Component\HttpFoundation\Response;
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class Middleware
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{
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/**
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* The root template that's loaded on the first page visit.
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*
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* @see https://inertiajs.com/server-side-setup#root-template
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*
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* @var string
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*/
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protected $rootView = 'app';
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/**
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* Determines the current asset version.
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*
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* @see https://inertiajs.com/asset-versioning
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*
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* @return string|null
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*/
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public function version(Request $request)
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{
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if (config('app.asset_url')) {
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return md5(config('app.asset_url'));
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}
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if (file_exists($manifest = public_path('mix-manifest.json'))) {
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return md5_file($manifest);
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}
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if (file_exists($manifest = public_path('build/manifest.json'))) {
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return md5_file($manifest);
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}
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return null;
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}
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/**
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* Defines the props that are shared by default.
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*
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* @see https://inertiajs.com/shared-data
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*
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* @return array
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*/
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public function share(Request $request)
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{
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return [
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'errors' => function () use ($request) {
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return $this->resolveValidationErrors($request);
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},
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];
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}
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/**
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* Sets the root template that's loaded on the first page visit.
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*
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* @see https://inertiajs.com/server-side-setup#root-template
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*
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* @return string
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*/
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public function rootView(Request $request)
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{
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return $this->rootView;
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}
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/**
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* Handle the incoming request.
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*
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* @return Response
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*/
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public function handle(Request $request, Closure $next)
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{
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Inertia::version(function () use ($request) {
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return $this->version($request);
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});
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Inertia::share($this->share($request));
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Inertia::setRootView($this->rootView($request));
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$response = $next($request);
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$response->headers->set('Vary', 'X-Inertia');
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if (! $request->header('X-Inertia')) {
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return $response;
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}
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if ($request->method() === 'GET' && $request->header('X-Inertia-Version', '') !== Inertia::getVersion()) {
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$response = $this->onVersionChange($request, $response);
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}
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if ($response->isOk() && empty($response->getContent())) {
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$response = $this->onEmptyResponse($request, $response);
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}
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if ($response->getStatusCode() === 302 && in_array($request->method(), ['PUT', 'PATCH', 'DELETE'])) {
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$response->setStatusCode(303);
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}
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return $response;
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}
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/**
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* Determines what to do when an Inertia action returned with no response.
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* By default, we'll redirect the user back to where they came from.
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*/
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public function onEmptyResponse(Request $request, Response $response): Response
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{
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return Redirect::back();
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}
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/**
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* Determines what to do when the Inertia asset version has changed.
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* By default, we'll initiate a client-side location visit to force an update.
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*/
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public function onVersionChange(Request $request, Response $response): Response
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{
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if ($request->hasSession()) {
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$request->session()->reflash();
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}
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return Inertia::location($request->fullUrl());
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}
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/**
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* Resolves and prepares validation errors in such
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* a way that they are easier to use client-side.
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*
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* @return object
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*/
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public function resolveValidationErrors(Request $request)
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{
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if (! $request->hasSession() || ! $request->session()->has('errors')) {
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return (object) [];
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}
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return (object) collect($request->session()->get('errors')->getBags())->map(function ($bag) {
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return (object) collect($bag->messages())->map(function ($errors) {
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return $errors[0];
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})->toArray();
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})->pipe(function ($bags) use ($request) {
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if ($bags->has('default') && $request->header('x-inertia-error-bag')) {
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return [$request->header('x-inertia-error-bag') => $bags->get('default')];
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}
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if ($bags->has('default')) {
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return $bags->get('default');
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}
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return $bags->toArray();
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});
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}
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}
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