2016-07-25 186 views
0

我想做一個登錄POST請求與JSON到這個網站 Link,並按照redirect.My當前程序工作正常,如果登錄細節是錯誤的。如果細節錯誤,我會得到'(401)未經授權「。消息,這意味着Post請求已成功。 但是,我的問題是,如果登錄詳細信息是正確的,我會收到'(400)錯誤請求'。我不知道爲什麼會發生這種情況,而我目前仍然堅持這一點。 這裏是我的代碼,我希望有人能幫助我:C#Json發送請求重定向

static string url = "https://auth.riotgames.com/authz/auth"; 
     static string uriString = ""; 
     static void Main(string[] args) 
     { 
      var request_check = (HttpWebRequest)HttpWebRequest.Create("https://auth.riotgames.com/authz/auth"); 
      request_check.Host = "auth.riotgames.com"; 
      request_check.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0"; 
      request_check.Accept = "application/json, text/javascript, */*; q=0.01"; 
      request_check.Headers.Add("Accept-Language", "en-US,en;q=0.5"); 
      request_check.Headers.Add("Accept-Encoding", "gzip, deflate, br"); 
      request_check.ContentType = "application/json"; 
      request_check.Headers.Add("X-Requested-With", "XMLHttpRequest"); 
      request_check.Referer = "https://auth.riotgames.com/authorize?response_type=code&scope=openid%20email&client_id=merch-store-client&ui_locales=de-DE&login_hint=euw&redirect_uri=https://euw.merch.riotgames.com/de/riot_sso/auth/redirect/"; 
      var cookieContainer = new CookieContainer(); 
      request_check.CookieContainer = cookieContainer; 
      request_check.Method = "POST"; 
      request_check.KeepAlive = true; 
      request_check.AllowAutoRedirect = false; 
      // Account details Senturia:a12365478 
      using (var streamWriter = new StreamWriter(request_check.GetRequestStream())) 
      { 
       string json = "{\"username\":\"Senturia\",\"password\":\"a12365478\",\"remember\":false,\"region\":\"EUW1\",\"language\":\"de_DE\",\"lang\":\"de_DE\"}"; 
       streamWriter.Write(json); 
      } 
      try 
      { 
       // Get the response ... 
       using (var webResponse = (HttpWebResponse)request_check.GetResponse()) 
       { 
        // Now look to see if it's a redirect 
        if ((int)webResponse.StatusCode >= 300 && (int)webResponse.StatusCode <= 399) 
        { 
         uriString = webResponse.Headers["Location"]; 
         Console.WriteLine("Redirect to " + uriString ?? "NULL"); 
        } 
       } 
      } 
      catch(Exception e) 
      { 
       Console.WriteLine(e.Message); 
      } 



      Console.ReadKey(); 
     } 

回答

2

當一個HTTP請求失敗,你可以搭乘WebException,並從服務器讀取響應,因爲它可能包含有關原因的有用信息請求失敗:

catch (WebException e) 
{ 
    using (var stream = e.Response.GetResponseStream()) 
    using (var reader = new StreamReader(stream)) 
    { 
     Console.WriteLine(reader.ReadToEnd()); 
    } 
} 

在你的情況下,這個打印:

{"error":"invalid_session_id","error_description":"Missing session id."} 

所以我想的是,服務器需要一些作者ession id參數與請求一起發送。請參閱您嘗試調用的端點的文檔,以獲取有關如何執行此操作的更多詳細信息。

+0

謝謝你的提示!這真的很有用! – Catalin