Middleware to generate unique ID for Firefly III installation.

app/Http/Controllers/HomeController.php

@@ -43,6 +43,7 @@ class HomeController extends Controller
 {
     /**
      * HomeController constructor.
+     *
      * @codeCoverageIgnore
      */
     public function __construct()
@@ -57,6 +58,7 @@ class HomeController extends Controller
      * Change index date range.
      *
      * @param Request $request
+     *
      * @return JsonResponse
      * @throws Exception
      */
@@ -98,6 +100,7 @@ class HomeController extends Controller
      * Show index.
      *
      * @param AccountRepositoryInterface $repository
+     *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector|\Illuminate\View\View
      * @throws Exception
      */

app/Http/Kernel.php

@@ -25,6 +25,7 @@ namespace FireflyIII\Http;
 use FireflyIII\Http\Middleware\Authenticate;
 use FireflyIII\Http\Middleware\Binder;
 use FireflyIII\Http\Middleware\EncryptCookies;
+use FireflyIII\Http\Middleware\InstallationId;
 use FireflyIII\Http\Middleware\Installer;
 use FireflyIII\Http\Middleware\InterestingMessage;
 use FireflyIII\Http\Middleware\IsAdmin;
@@ -70,6 +71,7 @@ class Kernel extends HttpKernel
             TrimStrings::class,
             ConvertEmptyStringsToNull::class,
             TrustProxies::class,
+            InstallationId::class
         ];
 
     /**

app/Http/Middleware/InstallationId.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * InstallationId.php
+ * Copyright (c) 2020 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace FireflyIII\Http\Middleware;
+
+use Closure;
+use FireflyIII\Exceptions\FireflyException;
+use Log;
+use Ramsey\Uuid\Uuid;
+
+/**
+ *
+ * Class InstallationId
+ */
+class InstallationId
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @param Closure                  $next
+     *
+     * @return mixed
+     *
+     * @throws FireflyException
+     *
+     */
+    public function handle($request, Closure $next)
+    {
+        $config = app('fireflyconfig')->get('installation_id', null);
+        if (null === $config) {
+            $uuid5    = Uuid::uuid5(Uuid::NAMESPACE_URL, 'firefly-iii.org');
+            $uniqueId = (string)$uuid5;
+            Log::info(sprintf('Created Firefly III installation ID %s', $uniqueId));
+            app('fireflyconfig')->set('installation_id', $uniqueId);
+        }
+
+        return $next($request);
+    }
+}