我正在尝试从我的 WP7 应用程序访问谷歌驱动器。但是当我尝试获取访问令牌以换取授权码时，我从服务器收到了 BAD REQUEST。
我在 Fidler 中看到的 POST 请求：
POST https://accounts.google.com/o/oauth2/token HTTP/1.1
Accept: */*
Referer: file:///Applications/Install/7128457C-3AF4-41C4-A606-742068B1463F/Install/
Content-Length: 240
Accept-Encoding: identity
Content-Type: application/x-www-form-urlencoded
User-Agent: NativeHost
Host: accounts.google.com
Connection: Keep-Alive
Cache-Control: no-cache
code=<*Authorization_Code*>&
client_id=<*My_Client_Id*>&
client_secret=<*My_Client_Secret*>&
redirect_uri=urn%3aietf%3awg%3aoauth%3a2.0%3aoob&
grant_type=authorization_code
来自服务器的响应：
HTTP/1.1 400 Bad Request
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Date: Sat, 07 Sep 2013 14:05:35 GMT
Content-Type: application/json
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Alternate-Protocol: 443:quic
Transfer-Encoding: chunked
21
{
"error" : "invalid_request"
}
0
我的代码：
StringBuilder postData = new StringBuilder();
postData.AppendFormat("{0}={1}", "code", HttpUtility.UrlEncode(AuthorizationCode));
postData.AppendFormat("&\n{0}={1}", "client_id", HttpUtility.UrlEncode(ClientId));
postData.AppendFormat("&\n{0}={1}", "client_secret", HttpUtility.UrlEncode(ClientSecret));
postData.AppendFormat("&\n{0}={1}", "redirect_uri", HttpUtility.UrlEncode("urn:ietf:wg:oauth:2.0:oob"));
postData.AppendFormat("&\n{0}={1}", "grant_type", HttpUtility.UrlEncode("authorization_code"));
WebClient client = new WebClient();
client.UploadStringCompleted += TokenResponse;
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
client.UploadStringAsync(new Uri("https://accounts.google.com/o/oauth2/token",UriKind.Absolute), "POST", postData.ToString());
我在模拟器和 Lumia 820 上都得到了这个结果。我也试过在 POST 请求中不使用 HttpUtility，但没有用。有什么帮助吗？