使用C＃for Inoreader发送带有自定义标头属性值的OAuth 2.0 POST请求

2 回答

• 0

  要在UWP中执行OAuth 2.0身份验证操作，我们通常会利用WebAuthenticationBroker Class .

  Web身份验证代理允许应用程序使用Internet身份验证和授权协议（如OpenID或OAuth）连接到在线身份提供程序 . 应用程序可以选择使用Web身份验证代理登录OAuth或基于OpenID协议的Web服务，例如许多社交网络和图片共享网站，前提是特定服务提供商已进行必要的更改 .

  有关详细信息，请参阅Web authentication broker .

  以下是使用WebAuthenticationBroker class和Windows.Web.Http.HttpClient class的示例 . WebAuthenticationBroker 类用于“ Consent page redirection ”， Windows.Web.Http.HttpClient 类用于“ Obtaining access and refresh tokens ” .

  string startURL = "https://www.inoreader.com/oauth2/auth?client_id=[CLIENT_ID]&redirect_uri=[REDIRECT_URI]&response_type=code&scope=[OPTIONAL_SCOPES]&state=[CSRF_PROTECTION_STRING]";
  
  //endURL is the REDIRECT_URI set in your application registration settings
  string endURL = "[REDIRECT_URI]";
  
  System.Uri startURI = new System.Uri(startURL);
  System.Uri endURI = new System.Uri(endURL);
  
  // Get Authorization code
  var webAuthenticationResult = 
      await Windows.Security.Authentication.Web.WebAuthenticationBroker.AuthenticateAsync( 
      Windows.Security.Authentication.Web.WebAuthenticationOptions.None, 
      startURI, 
      endURI);
  
  if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
  {
      //webAuthenticationResult.ResponseData would like "https://yourredirecturi.com/?code=[AUTHORIZATION_CODE]&state=[CSRF_PROTECTION_STRING]"
      var decoder = new WwwFormUrlDecoder(new Uri(webAuthenticationResult.ResponseData).Query);
      //Get the CSRF_PROTECTION_STRING and check if it matches that one that you send during the consent page redirection.
      if (decoder.GetFirstValueByName("state") == "[CSRF_PROTECTION_STRING]")
      {
          //Get the AUTHORIZATION_CODE
          var autorizationCode = decoder.GetFirstValueByName("code");
  
          //Send a POST request
          var pairs = new Dictionary<string, string>();
          pairs.Add("code", autorizationCode);
          pairs.Add("redirect_uri", [REDIRECT_URI]);
          pairs.Add("client_id", [CLIENT_ID]);
          pairs.Add("client_secret", [CLIENT_SECRET]);
          pairs.Add("scope", [OPTIONAL_SCOPES]);
          pairs.Add("grant_type", "authorization_code");
  
          var formContent = new Windows.Web.Http.HttpFormUrlEncodedContent(pairs);
  
          var client = new Windows.Web.Http.HttpClient();
          var httpResponseMessage = await client.PostAsync(new Uri("https://www.inoreader.com/oauth2/token"), formContent);
          if (httpResponseMessage.IsSuccessStatusCode)
          {
              //The Response is a JSON string 
              string jsonString = await httpResponseMessage.Content.ReadAsStringAsync();
              var jsonObject = Windows.Data.Json.JsonObject.Parse(jsonString);
              //Obtaining access and refresh tokens
              var accessToken = jsonObject["access_token"].GetString();
              var refreshToken = jsonObject["refresh_token"].GetString();
          }
      }
  }
  

  使用HttpFormUrlEncodedContent时，它应该能够自动将 Content-type 标头设置为 application/x-www-form-urlencoded .

  回复于 2024-05-02T04:43:40+08:00
• 1

  要获取令牌，请检查此链接https://codeserendipity.com/2017/07/12/oauth2-get-an-access-token-c/

  要使用令牌，请查看以下答案：How can I use the access token to get a list of projects from a website in c#?

  回复于 2024-05-02T04:43:40+08:00