Support swagger-ui's oauth2 redirect

composer.json

@@ -29,6 +29,7 @@
     "require-dev": {
         "adamwojs/php-cs-fixer-phpdoc-force-fqcn": "^2.0",
         "friendsofphp/php-cs-fixer": "^3.0",
+        "guzzlehttp/guzzle": "^7.5",
         "jasonmccreary/laravel-test-assertions": "^2.3",
         "orchestra/testbench": "^7.0|^8.0|^9.0",
         "phpunit/phpunit": "^9.5|^10.0",

resources/views/index.blade.php

@@ -53,8 +53,9 @@
                     ],
                     layout: 'StandaloneLayout',
                     @if (!is_null($data["validator_url"]))
-                        validatorUrl: '{{ $data["validator_url"] }}'
+                        validatorUrl: '{{ $data["validator_url"] }}',
                     @endif
+                    oauth2RedirectUrl: '{{ url("{$data['path']}/oauth2-redirect") }}',
                 });
 
                 ui.initOAuth({

src/Http/Controllers/SwaggerOAuth2RedirectController.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace NextApps\SwaggerUi\Http\Controllers;
+
+use Illuminate\Support\Facades\Http;
+
+class SwaggerOAuth2RedirectController
+{
+    public function __invoke() : string
+    {
+        return Http::get('https://unpkg.com/swagger-ui-dist@latest/oauth2-redirect.html')->body();
+    }
+}

src/Http/Controllers/SwaggerViewController.php

@@ -4,10 +4,11 @@
 
 use Illuminate\Http\Request;
 use Illuminate\Support\ItemNotFoundException;
+use Illuminate\View\View;
 
 class SwaggerViewController
 {
-    public function __invoke(Request $request)
+    public function __invoke(Request $request) : View
     {
         try {
             $file = collect(config('swagger-ui.files'))->filter(function ($values) use ($request) {

src/SwaggerUiServiceProvider.php

@@ -6,6 +6,7 @@
 use Illuminate\Support\ServiceProvider;
 use NextApps\SwaggerUi\Console\InstallCommand;
 use NextApps\SwaggerUi\Http\Controllers\OpenApiJsonController;
+use NextApps\SwaggerUi\Http\Controllers\SwaggerOAuth2RedirectController;
 use NextApps\SwaggerUi\Http\Controllers\SwaggerViewController;
 
 class SwaggerUiServiceProvider extends ServiceProvider
@@ -40,7 +41,7 @@ protected function loadRoutes() : void
             Route::middleware($values['middleware'])
                 ->group(function () use ($values) {
                     Route::get($values['path'], SwaggerViewController::class)->name($values['path'] . '.index');
-
+                    Route::get($values['path'] . '/oauth2-redirect', SwaggerOAuth2RedirectController::class)->name($values['path'] . '.oauth2-redirect');
                     Route::get($values['path'] . '/{filename}', OpenApiJsonController::class)->name($values['path'] . '.json');
                 });
         });

tests/SwaggerOAuth2RedirectRouteTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace NextApps\SwaggerUi\Tests;
+
+use Illuminate\Contracts\Auth\Authenticatable;
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\Facades\Http;
+use NextApps\SwaggerUi\SwaggerUiServiceProvider;
+
+class SwaggerOAuth2RedirectRouteTest extends TestCase
+{
+    protected function setUp() : void
+    {
+        parent::setUp();
+
+        config()->set('swagger-ui.files.0.versions', ['v1' => __DIR__ . '/testfiles/openapi.json']);
+        config()->set('swagger-ui.files.0.oauth', ['client_id' => 1, 'client_secret' => 'foobar']);
+
+        Gate::define('viewSwaggerUI', fn (?Authenticatable $user) => true);
+    }
+
+    protected function getPackageProviders($app) : array
+    {
+        return [SwaggerUiServiceProvider::class];
+    }
+
+    /** @test */
+    public function it_returns_swagger_ui_oauth2_redirect_html_file_content()
+    {
+        Http::fake([
+            'https://unpkg.com/swagger-ui-dist@latest/oauth2-redirect.html' => Http::response('foo'),
+        ]);
+
+        $this->get('swagger/oauth2-redirect')
+            ->assertStatus(200)
+            ->assertSeeText('foo');
+
+        Http::assertSentCount(1);
+    }
+}