Question

有人可以帮我修改发起REST呼叫的经过身份验证的用户吗？我正在使用Lift和RestHelper

在我Boot.scala我有以下内容：

LiftRules.httpAuthProtectedResource.prepend {
  case Req(List("api", "incomingCall", incomingCall), _, GetRequest) => Full(AuthRole("admin"))
}

LiftRules.authentication = HttpBasicAuthentication("lift") {
  case (username, password, req) => {
    User.find(By(User.firstName, username)) match {
      case Full(user) if user.password.match_?(password) => {
        userRoles(AuthRole("admin"))
        User.logUserIn(user) //I tried with and without this line
         true
      }
      case x => {
        false
      }
    }
  }
}

LiftRules.dispatch.append(IncomingCallRest)

我的IncomingCallRest.scala文件如下所示：

object IncomingCallRest extends RestHelper {
  serve {
    case "api" :: "incomingCall" :: incomingCall :: _ JsonGet _ => {
      val currentUser = User.currentUser openOr User; //<--- On this line I'm trying to access the User, but it returns a blank user
      val messageWithUser = (incomingCall, currentUser.userIdAsString)
      ChatServer ! messageWithUser
      JString(incomingCall)
    }
  }
}

User.currentUser不会返回经过身份验证的用户。

您可能会看到我的代码基于ChatServer example。我正在从ChatIn.scala向User.currentUser拨打同样的电话，并且在那里工作。

有什么建议吗？

Answer 1

Lift的创建者在old thread中建议了以下内容：

会话在HTTP请求/响应中很早就没有初始化周期。但是，RequestVars是。我的建议是将用户放入 RequestVar然后在您的API模块中，读取RequestVar并将其放入一个SessionVar。

我按如下方式更改了我的代码以实现他的建议：

//IncomingCallRest.scala
object userIdRequestVar extends RequestVar[String]("Default") //This RequestVar is set in Boot.scala
object IncomingCallRest extends RestHelper {
  serve {
    case "api" :: "incomingCall" :: incomingCall :: _ JsonGet _ => {
      val messageWithUser = (incomingCall, userIdRequestVar.is)
      ChatServer ! messageWithUser
      JString(incomingCall)
    }
  }
}

//Boot.scala
LiftRules.authentication = HttpBasicAuthentication("lift") {
  case (username, password, req) => {
    User.find(By(User.firstName, username)) match {
      case Full(user) if user.password.match_?(password) => {
        userRoles(AuthRole("admin"))
        userIdRequestVar.set(user.userIdAsString) //Set the RequestVar
        true
      }
      case x => {
        false
      }
    }
  }
}

获取Lift RestHelper中的当前用户

1 个答案: