向cherwell发出API令牌请求时出现500错误

时间:2017-12-29 03:04:52

标签: c# rest api

尝试通过Code访问cherwell REST api时,我收到500内部服务器错误,试图返回令牌以进行其他调用。我已经验证所有信息(用户名,密码,ClientID和客户端密码)都是正确的。我还验证了服务器已启动并接受请求。我的代码肯定有问题。任何帮助都会很棒!

string token = "";
            string responseBody;
            string serverName = "ql1cwbeta1";

            //initialize web client
            using (WebClient webClient = new WebClient())
            {
                // pull down parameters for body
                string grantType = ConfigurationManager.AppSettings["grant_type"];
                string clientId = ConfigurationManager.AppSettings["client_id"];
                string username = ConfigurationManager.AppSettings["username"];
                string password = ConfigurationManager.AppSettings["password"];
                string authMode = ConfigurationManager.AppSettings["auth_mode"];

                //add parameters in headers
                webClient.Headers.Add("Accept", "application/json");

                // adding parameters in body
                NameValueCollection values = new NameValueCollection
                {
                    {"grant_type", grantType},
                    {"client_id", clientId},
                    {"username", username},
                    {"password", password},
                    {"auth_mode", authMode}
                };

                try
                {
                    byte[] responseBytes = webClient.
                        UploadValues("http://" + serverName + "/CherwellAPI/token?auth_mode=" + authMode + "&api_key=" + clientId, "POST", values);
                    responseBody = Encoding.UTF8.GetString(responseBytes);
                }
                catch (Exception exception)
                {
                    return exception;
                }

2 个答案:

答案 0 :(得分:0)

希望以下代码可以为您提供帮助。

public static string TokenRequest()
        {
            try
            {
                // Create HTTP Web Request for the token request
                HttpWebRequest tokenRequest = (HttpWebRequest)WebRequest.Create(Values.TokenURL);


                byte[] data = Encoding.ASCII.GetBytes("username=" + Username + "&password=" + Password + "&client_id=" + ClientId + "&grant_type=" + GrantType);

                // Set request verb POST, content type and content length (length of data)
                tokenRequest.Method = "POST";
                tokenRequest.ContentType = "application/x-www-form-urlencoded";
                tokenRequest.ContentLength = data.Length;

                // Stream request data
                using (Stream stream = tokenRequest.GetRequestStream())
                {
                    stream.Write(data, 0, data.Length);
                }

                // Get the response and read stream to string
                using (WebResponse response = tokenRequest.GetResponse())
                {
                    using (Stream stream = response.GetResponseStream())
                    {
                        using (StreamReader sr = new StreamReader(stream))
                        {
                            // responseText = sr.ReadToEnd();
                            return sr.ReadToEnd();
                        }
                    }
                }
            }
            catch (WebException ex)
            {
                // Catch error for bad URL (404) or bad request (400) resulting from bad input (username, password, client id, grant type in token request)
                if (ex.Message.Contains("400"))
                {
                    // do something for bad request
                }
                else if (ex.Message.Contains("404"))
                {
                    // do something for not found
                }
                else
                {
                    // unknown error, do something
                }

                return null;
            }
            catch (Exception ex)
            {
                // General Exception
                return null;
            }

        }

答案 1 :(得分:0)

供将来参考 - 您可以将客户端 ID 作为查询字符串的一部分如果所有参数都包含在查询字符串中,但是如果您还发送有效负载,那么 authmode 应该是唯一的在查询字符串中。

它将接受所有这些参数作为查询字符串。

但是,您应该知道,对于 Cherwell,如果您使用的是 LDAP 身份验证/用户帐户,则可能需要对您的用户名值进行 URL 编码。

某些特殊字符会破坏 auth 命令。具体来说,如果不使用 %5C 转义,则为域包含反斜杠可能会导致问题,我认为这会导致 400 错误。

如果您在管理控制台的“安全设置”页面中选择了未为浏览器应用启用的身份验证模式,也可能导致错误;)

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