Add protected download route with signed route signatures

app/Http/Controllers/ExportController.php

@@ -11,10 +11,12 @@
 
 namespace App\Http\Controllers;
 
-use App\Http\Requests\Export\StoreExportRequest;
-use App\Jobs\Company\CompanyExport;
-use App\Utils\Traits\MakesHash;
+use Illuminate\Support\Str;
 use Illuminate\Http\Response;
+use App\Utils\Traits\MakesHash;
+use App\Jobs\Company\CompanyExport;
+use Illuminate\Support\Facades\Cache;
+use App\Http\Requests\Export\StoreExportRequest;
 
 class ExportController extends BaseController
 {
@@ -54,8 +56,12 @@ class ExportController extends BaseController
      */
     public function index(StoreExportRequest $request)
     {
-        CompanyExport::dispatch(auth()->user()->getCompany(), auth()->user());
+        $hash = Str::uuid();
+        $url = \Illuminate\Support\Facades\URL::temporarySignedRoute('protected_download', now()->addHour(), ['hash' => $hash]);
+        Cache::put($hash, $url, now()->addHour());
 
-        return response()->json(['message' => 'Processing'], 200);
+        CompanyExport::dispatch(auth()->user()->getCompany(), auth()->user(), $hash);
+
+        return response()->json(['message' => 'Processing', 'url' => $url], 200);
     }
 }

app/Http/Controllers/ProtectedDownloadController.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Jobs\Util\UnlinkFile;
+use App\Exceptions\SystemError;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Storage;
+
+class ProtectedDownloadController extends BaseController
+{
+
+    public function index(Request $request)
+    {
+
+        $hashed_path = Cache::pull($request->hash);
+        
+        if (!$hashed_path) {
+            throw new SystemError('File no longer available', 404);
+            abort(404, 'File no longer available');
+        }
+
+        UnlinkFile::dispatch(config('filesystems.default'), $hashed_path)->delay(now()->addSeconds(10));
+
+        return response()->streamDownload(function () use ($hashed_path) {
+            echo Storage::get($hashed_path);
+        }, basename($hashed_path), []);
+
+    }
+
+}

app/Http/Kernel.php

@@ -41,6 +41,7 @@ use App\Http\Middleware\VerifyCsrfToken;
 use App\Http\Middleware\ContactTokenAuth;
 use Illuminate\Auth\Middleware\Authorize;
 use App\Http\Middleware\SetDbByCompanyKey;
+use App\Http\Middleware\ValidateSignature;
 use App\Http\Middleware\PasswordProtection;
 use App\Http\Middleware\ClientPortalEnabled;
 use App\Http\Middleware\CheckClientExistence;
@@ -49,16 +50,13 @@ use Illuminate\Http\Middleware\SetCacheHeaders;
 use Illuminate\Session\Middleware\StartSession;
 use App\Http\Middleware\CheckForMaintenanceMode;
 use App\Http\Middleware\RedirectIfAuthenticated;
-use Illuminate\Routing\Middleware\ThrottleRequests;
 use Illuminate\Foundation\Http\Kernel as HttpKernel;
-use Illuminate\Routing\Middleware\ValidateSignature;
 use Illuminate\Auth\Middleware\EnsureEmailIsVerified;
 use Illuminate\Routing\Middleware\SubstituteBindings;
 use Illuminate\View\Middleware\ShareErrorsFromSession;
 use Illuminate\Auth\Middleware\AuthenticateWithBasicAuth;
 use Illuminate\Foundation\Http\Middleware\ValidatePostSize;
 use Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse;
-use Illuminate\Routing\Middleware\ThrottleRequestsWithRedis;
 use Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull;
 
 class Kernel extends HttpKernel

app/Http/Middleware/ValidateSignature.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Http\Middleware;
+
+
+use Closure;
+use Illuminate\Routing\Exceptions\InvalidSignatureException;
+
+class ValidateSignature
+{
+    /**
+     * The names of the parameters that should be ignored.
+     *
+     * @var array<int, string>
+     */
+    protected $ignore = [
+        'q'
+    ];
+
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Closure  $next
+     * @param  string|null  $relative
+     * @return \Illuminate\Http\Response
+     *
+     * @throws \Illuminate\Routing\Exceptions\InvalidSignatureException
+     */
+    public function handle($request, Closure $next, $relative = null)
+    {
+        $ignore = property_exists($this, 'except') ? $this->except : $this->ignore;
+
+        if ($request->hasValidSignatureWhileIgnoring($ignore, $relative !== 'relative')) {
+            return $next($request);
+        }
+
+        throw new InvalidSignatureException;
+    }
+}

app/Jobs/Company/CompanyExport.php

@@ -11,39 +11,39 @@
 
 namespace App\Jobs\Company;
 
-use App\Jobs\Mail\NinjaMailerJob;
-use App\Jobs\Mail\NinjaMailerObject;
-use App\Libraries\MultiDB;
-use App\Mail\DownloadBackup;
-use App\Models\Company;
-use App\Models\CreditInvitation;
-use App\Models\InvoiceInvitation;
-use App\Models\PurchaseOrderInvitation;
-use App\Models\QuoteInvitation;
-use App\Models\RecurringInvoiceInvitation;
 use App\Models\User;
-use App\Models\VendorContact;
 use App\Utils\Ninja;
-use App\Utils\Traits\MakesHash;
+use App\Models\Company;
+use App\Libraries\MultiDB;
+use Illuminate\Support\Str;
+use App\Mail\DownloadBackup;
+use App\Jobs\Util\UnlinkFile;
+use App\Models\VendorContact;
 use Illuminate\Bus\Queueable;
+use App\Models\QuoteInvitation;
+use App\Utils\Traits\MakesHash;
+use App\Models\CreditInvitation;
+use App\Jobs\Mail\NinjaMailerJob;
+use App\Models\InvoiceInvitation;
+use Illuminate\Support\Facades\App;
+use App\Jobs\Mail\NinjaMailerObject;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Queue\SerializesModels;
+use App\Models\PurchaseOrderInvitation;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Queue\InteractsWithQueue;
+use App\Models\RecurringInvoiceInvitation;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
-use Illuminate\Queue\InteractsWithQueue;
-use Illuminate\Queue\SerializesModels;
-use Illuminate\Support\Facades\App;
-use Illuminate\Support\Facades\Storage;
 
 class CompanyExport implements ShouldQueue
 {
     use Dispatchable, InteractsWithQueue, Queueable, SerializesModels, MakesHash;
 
-    public $company;
-
-    private $export_format;
+    private $export_format = 'json';
 
     private $export_data = [];
 
-    public $user;
 
     /**
      * Create a new job instance.
@@ -52,11 +52,8 @@ class CompanyExport implements ShouldQueue
      * @param User $user
      * @param string $custom_token_name
      */
-    public function __construct(Company $company, User $user, $export_format = 'json')
+    public function __construct(public Company $company, private User $user, public string $hash)
     {
-        $this->company = $company;
-        $this->user = $user;
-        $this->export_format = $export_format;
     }
 
     /**
@@ -467,7 +464,12 @@ class CompanyExport implements ShouldQueue
         }
 
         $storage_file_path = Storage::disk(config('filesystems.default'))->url('backups/'.$file_name);
+        $storage_path = Storage::disk(config('filesystems.default'))->path('backups/'.$file_name);
 
+
+        $url = Cache::get($this->hash);
+        Cache::put($this->hash, $storage_path, now()->addHour());
+        
         App::forgetInstance('translator');
         $t = app('translator');
         $t->replace(Ninja::transformTranslations($this->company->settings));
@@ -475,12 +477,14 @@ class CompanyExport implements ShouldQueue
         $company_reference = Company::find($this->company->id);
 
         $nmo = new NinjaMailerObject;
-        $nmo->mailable = new DownloadBackup($storage_file_path, $company_reference);
+        $nmo->mailable = new DownloadBackup($url, $company_reference);
         $nmo->to_user = $this->user;
         $nmo->company = $company_reference;
         $nmo->settings = $this->company->settings;
         
         NinjaMailerJob::dispatch($nmo, true);
+        
+        UnlinkFile::dispatch(config('filesystems.default'), $storage_path)->delay(now()->addHours(1));
 
         if (Ninja::isHosted()) {
             sleep(3);

resources/views/errors/guest.blade.php

@@ -1,5 +1,5 @@
 @extends('portal.ninja2020.layout.error')
 
-@section('title', __($title) ?? 'Server Error')
+@section('title', $title ?? 'Error')
 @section('code', __($code) ?? '500')
 @section('message', __($message) ?? 'System Error')

routes/api.php

@@ -101,6 +101,7 @@ use App\Http\Controllers\Support\Messages\SendingController;
 use App\Http\Controllers\Reports\ClientSalesReportController;
 use App\Http\Controllers\Reports\InvoiceItemReportController;
 use App\Http\Controllers\PaymentNotificationWebhookController;
+use App\Http\Controllers\ProtectedDownloadController;
 use App\Http\Controllers\Reports\ProductSalesReportController;
 use App\Http\Controllers\Reports\ClientBalanceReportController;
 use App\Http\Controllers\Reports\ClientContactReportController;
@@ -401,4 +402,6 @@ Route::post('api/v1/yodlee/data_updates', [YodleeController::class, 'dataUpdates
 Route::post('api/v1/yodlee/refresh_updates', [YodleeController::class, 'refreshUpdatesWebhook'])->middleware('throttle:100,1');
 Route::post('api/v1/yodlee/balance', [YodleeController::class, 'balanceWebhook'])->middleware('throttle:100,1');
 
+Route::get('api/v1/protected_download/{hash}', [ProtectedDownloadController::class, 'index'])->name('protected_download')->middleware('signed')->middleware('throttle:300,1');
+
 Route::fallback([BaseController::class, 'notFound'])->middleware('throttle:404');