Add application API keys

app/Http/Middleware/AuthenticateApiApplicationKey.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Models\UserApplication;
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Symfony\Component\HttpFoundation\Response;
+
+class AuthenticateApiApplicationKey
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  Closure(Request): (Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        $plainTextKey = $request->bearerToken();
+
+        if ($plainTextKey === null || trim($plainTextKey) === '') {
+            return response()->json(['message' => 'Unauthenticated.'], 401);
+        }
+
+        $application = UserApplication::query()
+            ->with('user')
+            ->where('key_hash', UserApplication::hashKey($plainTextKey))
+            ->first();
+
+        if ($application === null || $application->user === null) {
+            return response()->json(['message' => 'Unauthenticated.'], 401);
+        }
+
+        Auth::setUser($application->user);
+        $request->setUserResolver(fn () => $application->user);
+
+        $application->forceFill([
+            'last_used_at' => now(),
+        ])->save();
+
+        return $next($request);
+    }
+}