User Resolver

Author: joselfonseca

app/Auth/EloquentUserResolver.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Auth;
+
+use App\Entities\Users\User;
+use App\Contracts\UserResolverInterface;
+
+/**
+ * Class EloquentUserResolver
+ * @package App\Auth
+ */
+class EloquentUserResolver implements UserResolverInterface
+{
+
+    /**
+     * @var User
+     */
+    protected $user;
+
+    /**
+     * EloquentUserResolver constructor.
+     * @param User $user
+     */
+    public function __construct(User $user)
+    {
+        $this->user = $user;
+    }
+
+    /**
+     * Resolve user with eloquent
+     * @param $id
+     * @return mixed
+     */
+    public function resolveById($id)
+    {
+        return $this->user->findOrFail($id);
+    }
+}

app/Contracts/UserResolverInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Contracts;
+
+/**
+ * Interface UserResolverInterface
+ * @package App\Auth
+ */
+interface UserResolverInterface
+{
+
+    /**
+     * Resolve a user from ID
+     * @param $id
+     * @return mixed
+     */
+    public function resolveById($id);
+}

app/Providers/AppServiceProvider.php

@@ -2,7 +2,9 @@
 
 namespace App\Providers;
 
+use App\Auth\EloquentUserResolver;
 use Illuminate\Support\ServiceProvider;
+use App\Contracts\UserResolverInterface;
 use App\Exceptions\OAuthExceptionHandler;
 use App\Exceptions\UnauthorizedExceptionHandler;
 use League\OAuth2\Server\Exception\OAuthException;
@@ -23,6 +25,7 @@ class AppServiceProvider extends ServiceProvider
     public function boot()
     {
         $this->registerOAuthExceptionHandler();
+        $this->app->bind(UserResolverInterface::class, EloquentUserResolver::class);
     }
 
     /**

app/Providers/AuthServiceProvider.php

@@ -2,9 +2,15 @@
 
 namespace App\Providers;
 
+use Dingo\Api\Auth\Provider\OAuth2;
+use App\Contracts\UserResolverInterface;
 use Illuminate\Contracts\Auth\Access\Gate as GateContract;
 use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
 
+/**
+ * Class AuthServiceProvider
+ * @package App\Providers
+ */
 class AuthServiceProvider extends ServiceProvider
 {
     /**
@@ -25,7 +31,27 @@ class AuthServiceProvider extends ServiceProvider
     public function boot(GateContract $gate)
     {
         parent::registerPolicies($gate);
+        $this->registerOAuthProvider();
+    }
+
+    /**
+     * Register the oAuth 2 server provider
+     */
+    public function registerOAuthProvider()
+    {
+        app('Dingo\Api\Auth\Auth')->extend('oauth', function ($app) {
+            $provider = new OAuth2($app['oauth2-server.authorizer']->getChecker());
+
+            $provider->setUserResolver(function ($id) {
+                $resolver = app(UserResolverInterface::class);
+                return $resolver->resolveById($id);
+            });
+
+            $provider->setClientResolver(function ($id) {
+
+            });
 
-        //
+            return $provider;
+        });
     }
 }

tests/Auth/OAuthServerTest.php

@@ -6,6 +6,7 @@
 use Carbon\Carbon;
 use App\Tests\TestCase;
 use App\Entities\Users\User;
+use App\Contracts\UserResolverInterface;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
 
 /**
@@ -199,4 +200,15 @@ public function itValidatesClientCredentials()
             'client_secret' => "12345"
         ])->seeStatusCode(200);
     }
+
+    /**
+     * @test
+     */
+    public function itResolvesUserFromId()
+    {
+        $user = factory(User::class)->create();
+        $resolver = app(UserResolverInterface::class);
+        $resolved = $resolver->resolveById($user->id);
+        $this->assertEquals($user->id, $resolved->id);
+    }
 }