净谷歌的OAuth令牌的WebRequest错误的请求协议错误 [英] .Net Google OAuth token WebRequest Bad Request Protocol Error

问题描述

我很好与此OAuth2的东西，直到我设法得到令牌。

我觉得我做的是与编码。

下面是我的code：

 字符串的URL =htt​​ps://accounts.google.com/o/oauth2/token;

StringBuilder的postDataBuider =新的StringBuilder（）;
postDataBuider.AppendLine（code =+ code）;
postDataBuider.AppendLine（CLIENT_ID =+ System.Configuration.ConfigurationManager.AppSettings [GoogleApplicationClientId]的ToString（））;
postDataBuider.AppendLine（client_secret =+ System.Configuration.ConfigurationManager.AppSettings [GoogleApplicationClientSecret]的ToString（））;
postDataBuider.AppendLine（redirect_uri =+ System.Configuration.ConfigurationManager.AppSettings [的AppDomain] +帐号/ YouTubeOAuth2Callback）;
postDataBuider.AppendLine（grant_type = authorization_ code）;

字符串postDataStr = postDataBuider.ToString（）;
// byte []的postDataBytes = System.Text.Encoding.GetEncoding（应用程序/ x-WWW的形式urlen codeD）的GetBytes（postDataStr）;
byte []的postDataBytes = System.Text.Encoding.UTF8.GetBytes（postDataStr）;

HttpWebRequest的要求=（HttpWebRequest的）WebRequest.Create（URL）;
request.Accept =应用/ JSON;
request.Method =POST;
request.ContentType =应用/的X WWW的形式urlen codeD;
request.ContentLength = postDataBytes.Length;

流式传输的数据流= request.GetRequestStream（）;
dataStream.Write（postDataBytes，0，postDataBytes.Length）;
dataStream.Close（）;

字符串responseStr =;

使用（HttpWebResponse响应=（HttpWebResponse）request.GetResponse（））
{
    使用（流responseStream = response.GetResponseStream（））
    {
        使用（StreamReader的readStream =新的StreamReader（responseStream，Encoding.UTF8））
        {
            responseStr = readStream.ReadToEnd（）;

            如果（String.IsNullOrWhiteSpace（responseStr））
            {
                抛出新的异常（应答为空或为空）;
            }
        }
    }
}
 

下面是我记录有关错误的信息：

 远程服务器返回错误：（400）错误的请求。

响应状态：ProtocolError
响应头：缓存控制=无缓存，无存储，最大年龄= 0，必重新验证
响应头：杂注= no-cache的
响应头：过期=星期五，1990 1月1日00:00:00 GMT
响应头：日期=星期二2012年5时55分54秒格林尼治标准​​时间5月22日
响应头：内容类型=应用程序/ JSON
响应头：X-Content-Type的-选项= nosniff
响应头：X帧选项= SAMEORIGIN
响应头：X-XSS-保护= 1;模式=块
响应头：服务器= GSE
响应头：传输编码=分块
 

解决方案

我不知道，如果你仍然面临这个问题，但是你的要求的身体应该是在同一直线上（改变的StringBuilder。 AppendLine 为 StringBuilder.Append ），并通过分离参数和放大器;

  StringBuilder的postDataBuider =新的StringBuilder（）;
postDataBuider.Append（code =+这个code.Text。）;
postDataBuider.Append（与＆amp;的client_id =+ ClientID的）;
postDataBuider.Append（与＆amp; client_secret =+ clientSecret）;
postDataBuider.Append（与＆amp; redirect_uri =+ redirectUri）;
postDataBuider.Append（＆放大器; grant_type = authorization_ code）;
 

这些改变后，你的code工作得很好，并访问令牌返回。

I'm doing fine with this OAuth2 stuff until I try to get the token.

I think I'm doing something to do with the encoding.

Here is my code:

string url = "https://accounts.google.com/o/oauth2/token";

StringBuilder postDataBuider = new StringBuilder();
postDataBuider.AppendLine("code=" + code);
postDataBuider.AppendLine("client_id=" + System.Configuration.ConfigurationManager.AppSettings["GoogleApplicationClientId"].ToString());
postDataBuider.AppendLine("client_secret=" + System.Configuration.ConfigurationManager.AppSettings["GoogleApplicationClientSecret"].ToString());
postDataBuider.AppendLine("redirect_uri=" + System.Configuration.ConfigurationManager.AppSettings["AppDomain"] + "Account/YouTubeOAuth2Callback");
postDataBuider.AppendLine("grant_type=authorization_code");

string postDataStr = postDataBuider.ToString();
// byte[] postDataBytes = System.Text.Encoding.GetEncoding("application/x-www-form-urlencoded").GetBytes(postDataStr);
byte[] postDataBytes = System.Text.Encoding.UTF8.GetBytes(postDataStr);

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Accept = "application/json";
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postDataBytes.Length;

Stream dataStream = request.GetRequestStream();
dataStream.Write(postDataBytes, 0, postDataBytes.Length);
dataStream.Close();

string responseStr = "";

using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
    using (Stream responseStream = response.GetResponseStream())
    {
        using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
        {
            responseStr = readStream.ReadToEnd();

            if (String.IsNullOrWhiteSpace(responseStr))
            {
                throw new Exception("Response is null or empty");
            }
        }
    }
}

Here is the info I've logged about the error:

The remote server returned an error: (400) Bad Request.

Response Status: ProtocolError
Response Header: Cache-Control = no-cache, no-store, max-age=0, must-revalidate
Response Header: Pragma = no-cache
Response Header: Expires = Fri, 01 Jan 1990 00:00:00 GMT
Response Header: Date = Tue, 22 May 2012 05:55:54 GMT
Response Header: Content-Type = application/json
Response Header: X-Content-Type-Options = nosniff
Response Header: X-Frame-Options = SAMEORIGIN
Response Header: X-XSS-Protection = 1; mode=block
Response Header: Server = GSE
Response Header: Transfer-Encoding = chunked

解决方案

I don't know if you are still facing this issue, but your Request body should be in the same line (changed StringBuilder.AppendLine for StringBuilder.Append), and the parameters separated by "&":

StringBuilder postDataBuider = new StringBuilder();
postDataBuider.Append("code=" + this.code.Text);
postDataBuider.Append("&client_id=" + clientId);
postDataBuider.Append("&client_secret=" + clientSecret);
postDataBuider.Append("&redirect_uri=" + redirectUri);
postDataBuider.Append("&grant_type=authorization_code");

After these changes, your code works just fine and the access token is returned.

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