Add the original data to attributes and allow to access it in ExpressionLanguage

Author: antograssiot

features/authorization/deny.feature

@@ -58,15 +58,39 @@ Feature: Authorization checking
     """
     Then the response status code should be 201
 
-  Scenario: An user cannot retrieve an item he doesn't own
+  Scenario: A user cannot retrieve an item he doesn't own
     When I add "Accept" header equal to "application/ld+json"
     And I add "Authorization" header equal to "Basic ZHVuZ2xhczprZXZpbg=="
     And I send a "GET" request to "/secured_dummies/1"
     Then the response status code should be 403
     And the response should be in JSON
 
-  Scenario: An user can retrieve an item he owns
+  Scenario: A user can retrieve an item he owns
     When I add "Accept" header equal to "application/ld+json"
     And I add "Authorization" header equal to "Basic ZHVuZ2xhczprZXZpbg=="
     And I send a "GET" request to "/secured_dummies/2"
     Then the response status code should be 200
+
+  Scenario: A user can't assign him an item he doesn't own
+    When I add "Accept" header equal to "application/ld+json"
+    And I add "Content-Type" header equal to "application/ld+json"
+    And I add "Authorization" header equal to "Basic YWRtaW46a2l0dGVu"
+    And I send a "PUT" request to "/secured_dummies/2" with body:
+    """
+    {
+        "owner": "kitten"
+    }
+    """
+    Then the response status code should be 403
+
+  Scenario: A user can update an item he owns and transfer it
+    When I add "Accept" header equal to "application/ld+json"
+    And I add "Content-Type" header equal to "application/ld+json"
+    And I add "Authorization" header equal to "Basic ZHVuZ2xhczprZXZpbg=="
+    And I send a "PUT" request to "/secured_dummies/2" with body:
+    """
+    {
+        "owner": "vincent"
+    }
+    """
+    Then the response status code should be 200

src/EventListener/ReadListener.php

@@ -107,5 +107,6 @@ public function onKernelRequest(GetResponseEvent $event): void
         }
 
         $request->attributes->set('data', $data);
+        $request->attributes->set('previous_data', \is_object($data) ? clone $data : $data);
     }
 }

src/Security/EventListener/DenyAccessListener.php

@@ -50,8 +50,6 @@ public function __construct(ResourceMetadataFactoryInterface $resourceMetadataFa
     }
 
     /**
-     * Sets the applicable format to the HttpFoundation Request.
-     *
      * @throws AccessDeniedException
      */
     public function onKernelRequest(GetResponseEvent $event): void
@@ -71,6 +69,7 @@ public function onKernelRequest(GetResponseEvent $event): void
 
         $extraVariables = $request->attributes->all();
         $extraVariables['object'] = $request->attributes->get('data');
+        $extraVariables['previous_object'] = $request->attributes->get('previous_data');
         $extraVariables['request'] = $request;
 
         if (!$this->resourceAccessChecker->isGranted($attributes['resource_class'], $isGranted, $extraVariables)) {

tests/EventListener/ReadListenerTest.php

@@ -119,6 +119,7 @@ public function testRetrieveCollectionPost()
 
         $this->assertTrue($request->attributes->has('data'));
         $this->assertNull($request->attributes->get('data'));
+        $this->assertFalse($request->attributes->has('previous_data'));
     }
 
     public function testRetrieveCollectionGet()
@@ -144,6 +145,7 @@ public function testRetrieveCollectionGet()
         $listener->onKernelRequest($event->reveal());
 
         $this->assertSame([], $request->attributes->get('data'));
+        $this->assertFalse($request->attributes->has('previous_data'));
     }
 
     public function testRetrieveItem()
@@ -171,6 +173,7 @@ public function testRetrieveItem()
         $listener->onKernelRequest($event->reveal());
 
         $this->assertSame($data, $request->attributes->get('data'));
+        $this->assertEquals($data, $request->attributes->get('previous_data'));
     }
 
     public function testRetrieveItemNoIdentifier()
@@ -223,6 +226,7 @@ public function testRetrieveSubresource()
         $listener->onKernelRequest($event->reveal());
 
         $this->assertSame($data, $request->attributes->get('data'));
+        $this->assertSame($data, $request->attributes->get('previous_data'));
     }
 
     public function testRetrieveSubresourceNoDataProvider()

tests/Fixtures/TestBundle/Document/SecuredDummy.php

@@ -30,7 +30,8 @@
  *         "post"={"access_control"="has_role('ROLE_ADMIN')"}
  *     },
  *     itemOperations={
- *         "get"={"access_control"="has_role('ROLE_USER') and object.getOwner() == user"}
+ *         "get"={"access_control"="has_role('ROLE_USER') and object.getOwner() == user"},
+ *         "put"={"access_control"="has_role('ROLE_USER') and previous_object.getOwner() == user"},
  *     },
  *     graphql={
  *         "query"={},

tests/Fixtures/TestBundle/Entity/SecuredDummy.php

@@ -29,7 +29,8 @@
  *         "post"={"access_control"="has_role('ROLE_ADMIN')"}
  *     },
  *     itemOperations={
- *         "get"={"access_control"="has_role('ROLE_USER') and object.getOwner() == user"}
+ *         "get"={"access_control"="has_role('ROLE_USER') and object.getOwner() == user"},
+ *         "put"={"access_control"="has_role('ROLE_USER') and previous_object.getOwner() ==  user"},
  *     },
  *     graphql={
  *         "query"={},