authentication - Paypal OAuth 登录示例未按预期工作

Question

我正在关注 this interactive login example来自 Paypal 的网站。

  public ActionResult PaypalResponse(string scope, string code)
    {
        Dictionary<string, string> configurationMap = new Dictionary<string, string>();
        configurationMap.Add("mode", "sandbox");

        APIContext apiContext = new APIContext();
        apiContext.Config = configurationMap;

        CreateFromAuthorizationCodeParameters param = new CreateFromAuthorizationCodeParameters();
        param.setClientId(clientId);
        param.setClientSecret(clientSecret);
        param.SetCode(code);

         // Exception here: 
        Tokeninfo info = Tokeninfo.CreateFromAuthorizationCode(apiContext, param);

        return null;
    }

方法 CreateFromAuthorizationCode 导致此(不正确)调用。注意 client ID 和 client secret 是如何丢失的

POST https://api.sandbox.paypal.com/v1/identity/openidconnect/tokenservice HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: PayPalSDK/  ;lang=DOTNET;v=4.0.30319.18051;bit=64;os=Microsoft Windows 8 Enterprise 6.2.9200.0;
Host: api.sandbox.paypal.com
Content-Length: 211
Expect: 100-continue
Connection: Keep-Alive

grant_type=authorization_code&code=d2mSEzm9xvE_l9Ibho0g6FNBVrC7wHZchJWqJfY...redacted...

Fiddler 的输出是

HTTP/1.1 400 Bad Request
Server: Apache-Coyote/1.1
Cache-Control: no-store
Pragma: no-cache
Content-Type: application/json
Vary: Accept-Encoding
Content-Length: 76
DC: origin1-api.sandbox.paypal.com
Date: Mon, 14 Oct 2013 01:30:05 GMT
Connection: close
Set-Cookie: DC=origin1-api.sandbox.paypal.com; secure

{"error_description":"client id or secret is null","error":"invalid_client"}

Answer 1

我遇到了完全相同的问题，并通过更改调用方法解决了

string postcontents = string.Format("client_id={0}&client_secret={1}&grant_type=authorization_code&redirect_uri={2}&code={3}"
                                      , System.Web.HttpUtility.UrlEncode(clientId)
                                      , System.Web.HttpUtility.UrlEncode(secret)
                                      , System.Web.HttpUtility.UrlEncode(url)
                                      , System.Web.HttpUtility.UrlEncode(code));


        HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("https://api.sandbox.paypal.com/v1/identity/openidconnect/tokenservice");
        request.Credentials = new NetworkCredential(clientId, secret);
        request.Method = "POST";
        byte[] postcontentsArray = System.Text.Encoding.UTF8.GetBytes(postcontents);
        request.ContentType = "application/x-www-form-urlencoded";
        request.ContentLength = postcontentsArray.Length;
        //OAuth.
        using (Stream requestStream = request.GetRequestStream())
        {
            requestStream.Write(postcontentsArray, 0, postcontentsArray.Length);
            requestStream.Close();
            WebResponse response = request.GetResponse();
            using (Stream responseStream = response.GetResponseStream())
            using (StreamReader reader = new StreamReader(responseStream))
            {
                string responseFromServer = reader.ReadToEnd();
                reader.Close();
                responseStream.Close();
                response.Close();
                // return SerializeToken(responseFromServer);
                dynamic dynObj = JsonConvert.DeserializeObject(responseFromServer);
                string token = dynObj["access_token"];
                //token = ser.Deserialize<ImportContacts._Default.GoogleOAuthToken>(responseFromServer);
            }
        }

希望对你有帮助