Added local database login fallback option

- Closes #26

Author: stevebauman

src/AdldapAuthUserProvider.php

@@ -75,6 +75,12 @@ public function retrieveByCredentials(array $credentials)
             }
         }
 
+        if ($this->getLoginFallback()) {
+            // Login failed. If login fallback is enabled
+            // we'll call the eloquent driver.
+            return parent::retrieveByCredentials($credentials);
+        }
+
         return;
     }
 
@@ -107,7 +113,7 @@ protected function getModelFromAdldap(User $user, $password)
         $model = $this->createModel()->newQuery()->where([$key => $username])->first();
 
         // Create the model instance of it isn't found.
-        if (!$model) {
+        if (!$model instanceof Model) {
             $model = $this->createModel();
         }
 
@@ -376,4 +382,15 @@ protected function getSelectAttributes()
     {
         return Config::get('adldap_auth.select_attributes', []);
     }
+
+    /**
+     * Retrieves the Adldap login fallback option for falling back
+     * to the local database if AD authentication fails.
+     *
+     * @return bool
+     */
+    protected function getLoginFallback()
+    {
+        return Config::get('adldap_auth.login_fallback', false);
+    }
 }

src/Config/auth.php

@@ -21,6 +21,20 @@
 
     'username_attribute' => ['username' => 'samaccountname'],
 
+    /*
+    |--------------------------------------------------------------------------
+    | Login Fallback
+    |--------------------------------------------------------------------------
+    |
+    | The login fallback option allows you to login as a user located on the
+    | local database if active directory authentication fails.
+    |
+    | Set this to true if you would like to enable it.
+    |
+    */
+
+    'login_fallback' => false,
+
     /*
     |--------------------------------------------------------------------------
     | Password Key

tests/AdldapTest.php

@@ -6,6 +6,7 @@
 use Adldap\Models\User;
 use Illuminate\Support\Facades\App;
 use Illuminate\Support\Facades\Auth;
+use Adldap\Laravel\Tests\Models\User as EloquentUser;
 use Mockery;
 
 class AdldapTest extends FunctionalTestCase
@@ -155,7 +156,7 @@ public function testCredentialsKeyDoesNotExist()
 
         Adldap::shouldReceive('users')->once()->andReturn($mockedUsers);
 
-        $nonExistantInputKey = 'non-existant-key';
+        $nonExistantInputKey = 'non-existent-key';
 
         $this->setExpectedException('ErrorException');
 
@@ -174,4 +175,23 @@ public function testConfigCallbackAttributeHandler()
 
         $this->assertEquals('handled', $user->name);
     }
+
+    public function testConfigLoginFallback()
+    {
+        $this->app['config']->set('adldap_auth.login_fallback', true);
+
+        EloquentUser::create([
+            'email' => 'jdoe@email.com',
+            'name' => 'John Doe',
+            'password' => bcrypt('Password123'),
+        ]);
+
+        $outcome = Auth::attempt(['email' => 'jdoe@email.com', 'password' => 'Password123']);
+
+        $user = \Auth::user();
+
+        $this->assertTrue($outcome);
+        $this->assertInstanceOf('Adldap\Laravel\Tests\Models\User', $user);
+        $this->assertEquals('jdoe@email.com', $user->email);
+    }
 }