如何在Scala Play框架中进行Twitter反向身份验证？

Question

我正在编写一个Play应用程序（在Scala中），并且试图执行Twitter概述的反向身份验证步骤： https : //dev.twitter.com/docs/ios/using-reverse-auth

该步骤听起来像https://api.twitter.com/oauth/request_token的普通RetrieveRequestToken，带有设置x_auth_mode = reverse_auth的附加参数

播放框架利用了Sign-Post（ https://code.google.com/p/oauth-signpost/ ），我想知道如何利用WS库和Sign-Post来实现这一目标。

这是我想出的：

val KEY = ConsumerKey(Play.configuration.getString("twitter.consumer.key").getOrElse("XXXX"),               Play.configuration.getString("twitter.consumer.secret").getOrElse("XXXX"))

  def reverse = Action.async {
    val oauth_calc = OAuthCalculator(KEY,  RequestToken("","") )
    oauth_calc.setSigningStrategy(new oauth.signpost.signature.AuthorizationHeaderSigningStrategy )
    var reverse_request : Future[Response] = WS.url("https://api.twitter.com/oauth/request_token").sign(oauth_calc)
         .post(Map("x_auth_mode" -> Seq("reverse_auth")))     
      reverse_request.map{
        response => {
          Logger.debug(response.body)
          Ok("Here")
        }
      }
  }

但是，我收到“无法验证oauth签名和令牌”

Answer 1

所以我在这里找到了部分答案： https : //stackoverflow.com/a/20635782/143733我不得不使用apache默认的HttpClient，因为在Play WS类或Sign-Post中似乎没有办法。

这是我最终想到的异步实现：

object Twitter extends Controller {

  val KEY = ConsumerKey(Play.configuration.getString("twitter.consumer.key").getOrElse("XXXX"), 
                        Play.configuration.getString("twitter.consumer.secret").getOrElse("XXXX"))

  val TWITTER_SERVICE_INFO = ServiceInfo(
    "https://api.twitter.com/oauth/request_token",
    "https://api.twitter.com/oauth/access_token",
    "https://api.twitter.com/oauth/authorize", KEY)

  val TWITTER = OAuth(TWITTER_SERVICE_INFO,false)

  /***
   * The following is the reverse oauth step outlined by twitter 
   */
  def reverse = Action.async {

    val client = new DefaultHttpClient();
    val params = new java.util.ArrayList[BasicNameValuePair](1)
    params.add(new BasicNameValuePair("x_auth_mode", "reverse_auth"))
    val consumer = new CommonsHttpOAuthConsumer(KEY.key, KEY.secret)
    val post = new HttpPost(TWITTER_SERVICE_INFO.requestTokenURL)
    post.addHeader("Content-Type", "application/x-www-form-urlencoded")
    post.setEntity(new UrlEncodedFormEntity(params))
    consumer.sign(post)

    val futureBodyString: Future[String] = future {
      val response = client.execute(post)
      EntityUtils.toString(response.getEntity())
    }

    futureBodyString.map {
      body => {
        Ok(body)
      }
    }

  }


}