请求令牌为twitter wp7

我正在为Windows Phone 7构建一个Twitter应用程序。但Twitter的OAuth给了我很多问题。我试图得到一个请求令牌，每次我收到消息：无法验证oauth签名和令牌。任何帮助，将不胜感激。请求令牌为twitter wp7

这里是我的代码：

参数基本字符串：

public static string GetParameterString() 
    { 
     SystemParameters SysParameters = new SystemParameters(); 
     Parameters Param = new Parameters(); 
     StringBuilder sb = new StringBuilder(); 
     sb.Append(SysParameters.CallbackUrl()).Append("="); 
     sb.Append(PercentEncoder(Param.callbackURL)).Append("&"); 
     sb.Append(SysParameters.CosumerToken()).Append("="); 
     sb.Append(PercentEncoder(Param.consumerKey)).Append("&"); 
     sb.Append(SysParameters.Nonce()).Append("="); 
     sb.Append(PercentEncoder(GetNonce())).Append("&"); 
     sb.Append(SysParameters.SignatureMethod()).Append("="); 
     sb.Append(PercentEncoder("HMAC-SHA1")).Append("&"); 
     sb.Append(SysParameters.TimeStamp()).Append("="); 
     sb.Append(PercentEncoder(GetTimeStamp().ToString())).Append("&"); 
     sb.Append(SysParameters.OauthVersion()).Append("="); 
     sb.Append(PercentEncoder("1.0")); 

     return sb.ToString(); 
    }

签名基本字符串：

public static string GetSignatureBase() 
    { 
     SystemParameters SysParameters = new SystemParameters(); 
     Parameters Param = new Parameters(); 
     StringBuilder sb = new StringBuilder(); 

     sb.Append("POST").Append("&"); 
     sb.Append(PercentEncoder(SysParameters.RequestTokenURL())).Append("&"); 
     sb.Append(PercentEncoder(GetParameterString())); 

     return sb.ToString(); 
    }

获取签名：

public static string GetSignature() 
{ 
    SystemParameters SysParameters = new SystemParameters(); 
    Parameters param = new Parameters(); 

    string signature; 

    signature = Convert.ToBase64String((new HMACSHA1(Encoding.UTF8 
         .GetBytes(PercentEncoder(param.consumerSecret) + "&"))) 
         .ComputeHash(Encoding.UTF8.GetBytes(GetSignatureBase()))); 

    return PercentEncoder(signature);  
}

获得令牌：

private void button2_Click(object sender, RoutedEventArgs e) 
    { 
     StringBuilder sb = new StringBuilder(); 

     sb.Append(param.RequestURL) 
         .Append(OauthHelper.RequestType.RequesToken).Append("?"); 
     sb.Append(sysParam.CallbackUrl()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder(param.callbackURL)).Append("&"); 
     sb.Append(sysParam.CosumerToken()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder(param.consumerKey)).Append("&"); 
     sb.Append(sysParam.Nonce()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder(OauthHelper.GetNonce())).Append("&"); 
     sb.Append(sysParam.Signature()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder(OauthHelper.GetSignature())).Append("&"); 
     sb.Append(sysParam.SignatureMethod()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder("HMAC-SHA1")).Append("&"); 
     sb.Append(sysParam.TimeStamp()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder(OauthHelper.GetTimeStamp().ToString())) 
                     .Append("&"); 
     sb.Append(sysParam.OauthVersion()).Append("="); 
     sb.Append(OauthHelper.PercentEncoder("1.0")); 

     WebBrowserTask task = new WebBrowserTask(); 
     task.URL = sb.ToString(); 

     task.Show(); 

    }

来源

2012-10-18 mike

我做这个实现参照其它代码..我的代码是这样的..

#region web query response methods 
    /// <summary> 
    /// Event that initiates QueryResponse for RequestToken request 
    /// </summary> 
    /// <param name="sender"></param> 
    /// <param name="e">Webresponse event argument</param> 
    void requestTokenQuery_QueryResponse(object sender, WebQueryResponseEventArgs e) 
    { 
     try 
     { 
      var parameters = TwitterHelperMethods.GetQueryParameters(e.Response); 
      OAuthTokenKey = parameters["oauth_token"]; 
      tokenSecret = parameters["oauth_token_secret"]; 
      var authorizeUrl = TwitterSettings.AuthorizeUri + "?oauth_token=" + OAuthTokenKey; 

      Dispatcher.BeginInvoke(() => 
      { 
       this.browseTwitter.Navigate(new Uri(authorizeUrl)); 
      }); 
     } 
     catch (Exception ex) 
     { 
      Dispatcher.BeginInvoke(() => 
      { 
       MessageBox.Show(ex.Message); 
      }); 
     } 
    } 

    /// <summary> 
    /// Event that initiates QueryResponse for AccessToken request 
    /// </summary> 
    /// <param name="sender"></param> 
    /// <param name="e">Webresponse event argument</param> 
    void AccessTokenQuery_QueryResponse(object sender, WebQueryResponseEventArgs e) 
    { 
     try 
     { 
      var parameters = TwitterHelperMethods.GetQueryParameters(e.Response); 
      accessToken = parameters["oauth_token"]; 
      accessTokenSecret = parameters["oauth_token_secret"]; 
      userID = parameters["user_id"]; 
      userScreenName = parameters["screen_name"]; 

      TwitterHelperMethods.SetKeyValue<string>("AccessToken", accessToken); 
      TwitterHelperMethods.SetKeyValue<string>("AccessTokenSecret", accessTokenSecret); 
      TwitterHelperMethods.SetKeyValue<string>("ScreenName", userScreenName); 

      cacheManager.SaveToIsolatedStorage(Utilities.TwitterID, userID); 
      cacheManager.SaveToIsolatedStorage(Utilities.TwitterAccessToken, accessToken); 
      cacheManager.SaveToIsolatedStorage(Utilities.TwitterSecretAccessToken, accessTokenSecret); 
      // NavigationService.Navigate(new Uri("/HomePage.xaml", UriKind.RelativeOrAbsolute)); 
     } 
     catch (Exception ex) 
     { 
      Dispatcher.BeginInvoke(() => 
      { 
       MessageBox.Show(ex.Message); 
      }); 
     } 
    } 
    #endregion 

    #region Browser events methods 

    /// <summary> 
    /// Called after the broswer is loaded 
    /// </summary> 
    /// <param name="sender">Browser</param> 
    /// <param name="e">Routed Event arguments</param> 
    private void browseTwitter_Loaded(object sender, RoutedEventArgs e) 
    { 
     accessToken = TwitterHelperMethods.GetKeyValue<string>("AccessToken"); 
     accessTokenSecret = TwitterHelperMethods.GetKeyValue<string>("AccessTokenSecret"); 
     userScreenName = TwitterHelperMethods.GetKeyValue<string>("ScreenName"); 

     if (string.IsNullOrEmpty(accessToken) || string.IsNullOrEmpty(accessTokenSecret)) 
     { 
      var requestTokenQuery = TwitterOAuthHelper.GetRequestTokenQuery(); 
      requestTokenQuery.RequestAsync(TwitterSettings.RequestTokenUri, null); 
      requestTokenQuery.QueryResponse += new EventHandler<WebQueryResponseEventArgs>(requestTokenQuery_QueryResponse); 
     } 
    } 

    /// <summary> 
    /// Called when browser Initiates Navigation to Uri provided 
    /// </summary> 
    /// <param name="sender">Browser</param> 
    /// <param name="e">Navigating event arguments</param> 
    private void browseTwitter_Navigating(object sender, NavigatingEventArgs e) 
    { 
     if (e.Uri.ToString().StartsWith(TwitterSettings.CallbackUri)) 
     { 
      cacheManager = new CacheManager(); 
      var AuthorizeResult = TwitterHelperMethods.GetQueryParameters(e.Uri.ToString()); 
      var VerifyPin = AuthorizeResult["oauth_verifier"]; 

      //We now have the Verification pin 
      //Using the request token and verification pin to request for Access tokens 

      var AccessTokenQuery = TwitterOAuthHelper.GetAccessTokenQuery(
                    OAuthTokenKey,  //The request Token 
                    tokenSecret,  //The request Token Secret 
                    VerifyPin   // Verification Pin 
                    ); 
      AccessTokenQuery.QueryResponse += new EventHandler<WebQueryResponseEventArgs>(AccessTokenQuery_QueryResponse); 
      AccessTokenQuery.RequestAsync(TwitterSettings.AccessTokenUri, null); 
      NavigationService.Navigate(new Uri("/OtherPages/HomePage.xaml", UriKind.RelativeOrAbsolute)); 
     } 
    } 
    #endregion

我Twitterhelpermethods类是这样的

public class TwitterHelperMethods 
{ 
    public static Dictionary<string, string> GetQueryParameters(string response) 
    { 
     Dictionary<string, string> nameValueCollection = new Dictionary<string, string>(); 
     string[] items = response.Split('&'); 

     foreach (string item in items) 
     { 
      if (item.Contains("=")) 
      { 
       string[] nameValue = item.Split('='); 
       if (nameValue[0].Contains("?")) 
        nameValue[0] = nameValue[0].Replace("?", ""); 
       nameValueCollection.Add(nameValue[0], System.Net.HttpUtility.UrlDecode(nameValue[1])); 
      } 
     } 
     return nameValueCollection; 
    } 
}

和twitteroauthhelper.cs是

public class TwitterOAuthHelper 
{ 
    public static OAuthWebQuery GetRequestTokenQuery() 
    { 
     var oauth = new OAuthWorkflow 
     { 
      ConsumerKey = TwitterSettings.consumerKey, 
      ConsumerSecret = TwitterSettings.consumerKeySecret, 
      SignatureMethod = OAuthSignatureMethod.HmacSha1, 
      ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader, 
      RequestTokenUrl = TwitterSettings.RequestTokenUri, 
      Version = TwitterSettings.oAuthVersion, 
      CallbackUrl = TwitterSettings.CallbackUri 
     }; 

     var info = oauth.BuildRequestTokenInfo(WebMethod.Get); 
     var objOAuthWebQuery = new OAuthWebQuery(info); 
     objOAuthWebQuery.HasElevatedPermissions = true; 
     objOAuthWebQuery.SilverlightUserAgentHeader = "Hammock"; 
     objOAuthWebQuery.SilverlightMethodHeader = "GET"; 
     return objOAuthWebQuery; 
    } 

    public static OAuthWebQuery GetAccessTokenQuery(string requestToken, string RequestTokenSecret, string oAuthVerificationPin) 
    { 
     var oauth = new OAuthWorkflow 
     { 
      AccessTokenUrl = TwitterSettings.AccessTokenUri, 
      ConsumerKey = TwitterSettings.consumerKey, 
      ConsumerSecret = TwitterSettings.consumerKeySecret, 
      ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader, 
      SignatureMethod = OAuthSignatureMethod.HmacSha1, 
      Token = requestToken, 
      Verifier = oAuthVerificationPin, 
      Version = TwitterSettings.oAuthVersion 
     }; 

     var info = oauth.BuildAccessTokenInfo(WebMethod.Post); 
     var objOAuthWebQuery = new OAuthWebQuery(info); 
     objOAuthWebQuery.HasElevatedPermissions = true; 
     objOAuthWebQuery.SilverlightUserAgentHeader = "Hammock"; 
     objOAuthWebQuery.SilverlightMethodHeader = "GET"; 
     return objOAuthWebQuery; 
    } 
}

twittersettings.cs： -

public class TwitterSettings 
{ 
    public static string RequestTokenUri = "https://api.twitter.com/oauth/request_token"; 
    public static string AuthorizeUri = "https://api.twitter.com/oauth/authorize"; 
    public static string AccessTokenUri = "https://api.twitter.com/oauth/access_token"; 

    public static string CallbackUri = "http://www.qwinixtech.com"; 

    public static string StatusUpdateUrl { get { return "http://api.twitter.com"; } } 

    // #error TODO REGISTER YOUR APP WITH TWITTER TO GET YOUR KEYS AND FILL THEM IN HERE 
    public static string consumerKey = "Your consumer key here"; 
    public static string consumerKeySecret = "Your consumer secret key here"; 

    public static string AccessToken = "Your access token here"; 
    public static string AccessTokenSecret = "Your Secret access token here"; 

    public static string oAuthVersion = "1.0a"; 

}

这工作得很好..所有的u需要做这项工作是吊床库..我希望你已经拥有它..否则请下载吧..

来源

2012-10-26 06:10:12 Apoorva

请求令牌为twitter wp7

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