Question

我正在尝试为安全性创建自定义操作。我正在使用Scala Oauth 用于处理我的应用程序中的安全性并尝试创建自定义操作并将Scala Oauth安全性包装在我的自定义操作中。根据Play Framework文档，我使用两种方式来包装请求对象，但遗憾的是，我没有在自定义Action处理程序中获取自定义Request对象。以下是方法：

case class AuthRequest[A](user: User, request: Request[A]) extends WrappedRequest[A](request)

第一种方式

case class CustomSecurityAction[A](action: Action[A]) extends Action[A] with OAuth2Provider{

 def apply(request: Request[A]): Future[Result] = {
  implicit val executionContext: ExecutionContext = play.api.libs.concurrent.Execution.defaultContext

  request.headers.get("Host").map { host =>
   authorize(new SecurityDataHandler(host)) { authInfo =>
    action(AuthRequest(authInfo.user, request))
   }(request, executionContext)
  } getOrElse {
   Future.successful(Unauthorized("401 No user\n"))
  }}

  lazy val parser = action.parser
}

object SecurityAction extends ActionBuilder[Request] with OAuth2Provider {
 def invokeBlock[A](request: Request[A], block: (Request[A]) => Future[Result]) = {
  block(request)
 }
 override def composeAction[A](action: Action[A]) = new CustomSecurityAction(action)
}

第二种方式

object SecurityAction extends ActionBuilder[Request] with OAuth2Provider {

 def invokeBlock[A](request: Request[A], block: (Request[A]) => Future[Result]) = {
  implicit val executionContext: ExecutionContext = play.api.libs.concurrent.Execution.defaultContext

  request.headers.get("Host").map { host =>
   authorize(new SecurityDataHandler(host)) { authInfo =>
     block(AuthRequest(authInfo.user, request))
   }(request, executionContext)
  } getOrElse {
    Future.successful(Unauthorized("401 No user\n"))
  }
}

根据两种方式，当我尝试在我的自定义处理程序中使用user对象时，我得到以下编译时错误：

value user is not a member of play.api.mvc.Request[play.api.mvc.AnyContent]
 val user = request.user

以下是我的处理程序代码：

def testCustomAction = SecurityAction { request =>
 val user = request.user
 Future.successful(Ok("Apna To Chal Gya"))
}

Answer 1

在上面的代码中有一个简单的问题。我在play.api.mvc.Request方法中使用invokeBlock而不是AuthRequest。请找到以下代码进行更正。

object SecurityAction extends ActionBuilder[AuthRequest] {

  override def invokeBlock[A](request: Request[A], block: (AuthRequest[A]) => Future[Result]) = {

    request match {
     case re: AuthRequest[A] => block(re)
     case _ => Future.successful(Results.Unauthorized("401 No user\n"))
    }
  }
  override def composeAction[A](action: Action[A]) = CustomSecurityAction(action)
}

Play Framework 2.3.x：在Play框架中使用Scala Oauth包装请求对象

1 个答案: