[英]500 px api with C# throwing 500 Internal Server Error
我正在尝试使用C#实现500px API 。 我可以使用500px API验证用户身份,但无法获得access_token来交换response_token ,这使我的Oauth 1.0第三步不完整。 我能够授权用户并获得oauth_token和oauth_verifier,但是当我使用此oauth_token发出以下请求时:-
https://api.500px.com/v1/oauth/access_token
500内部服务器错误以及以下屏幕被抛出
我已经调试了数千次代码,尝试了各种方法来形成URL,向请求中添加了各种参数,但没有帮助。 我非常难受,因为在500px开发人员网站上或在C#中使用此api的网站上几乎没有可用的信息。 我已经死胡同了!
以下是我的代码:
1.]用于请求令牌并授权用户:-
string normalizedUrl;
string normalizedRequestParameters;
OAuth.OAuthBase myOAuth = new OAuth.OAuthBase();
try
{
Uri uri = new Uri("https://api.500px.com/v1/oauth/request_token");
string consumerKey = "u26X4av9ydNPd7kteT7bunfcdjHqVttYWIDOC1lA";
string consumerSecret = "73iaFPqCR4xkH3dgYIcPauTqhI6tMHWChDivnOP7";
string timeStamp = myOAuth.GenerateTimeStamp();
string nonce = myOAuth.GenerateNonce();
myOAuth.includeVersion = true;
string signature = myOAuth.GenerateSignature(uri, consumerKey, consumerSecret,
"", "", "GET", timeStamp, nonce, OAuth.OAuthBase.SignatureTypes.HMACSHA1,
out normalizedUrl, out normalizedRequestParameters);
string authorizationUrl = normalizedUrl + "?" + normalizedRequestParameters + "&oauth_signature=" + myOAuth.UrlEncode(signature);
Uri signInUrl = new Uri(authorizationUrl);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(signInUrl);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader stIn = new StreamReader(response.GetResponseStream());
string responseString = stIn.ReadToEnd();
stIn.Close();
//oauth_token=cf40227bb7ede4d6e56ff790324761b3&oauth_token_secret=0bcb59dff2c1d095739c86c534fc62d7ed224fecfe8744d48c9c95f36211382f
if (responseString.Contains("oauth_token=") && responseString.Contains("oauth_token_secret="))
{
String RespToken = responseString.Split('&')[0].Replace("oauth_token=", "");
String RespSecret = responseString.Split('&')[1].Replace("oauth_token_secret=", "");
uri = new Uri("https://api.500px.com/v1/oauth/authorize");
timeStamp = myOAuth.GenerateTimeStamp();
nonce = myOAuth.GenerateNonce();
myOAuth.includeVersion = true;
signature = myOAuth.GenerateSignature(uri, consumerKey, consumerSecret, RespToken
, RespSecret, "GET", timeStamp, nonce, OAuth.OAuthBase.SignatureTypes.HMACSHA1,
out normalizedUrl, out normalizedRequestParameters);
Console.WriteLine("Signature=="+signature);
authorizationUrl = normalizedUrl + "?" + normalizedRequestParameters + "&oauth_signature=" + myOAuth.UrlEncode(signature);
Uri signInUrl1 = new Uri(authorizationUrl);
webBrowser1.Navigate(signInUrl1);
}
2.]用户单击“授权此应用程序以获取access_token”后:-
private void webBrowser_Navigated(object sender, WebBrowserNavigatedEventArgs e)
{
string parameters;
string normalizedUrl;
string normalizedRequestParameters;
string consumerKey = "u26X4av9ydNPd7kteT7bunfcdjHqVttYWIDOC1lA";
string consumerSecret = "73iaFPqCR4xkH3dgYIcPauTqhI6tMHWChDivnOP7";
OAuth.OAuthBase myOAuth = new OAuth.OAuthBase();
try
{
if (e.Url.ToString().Contains("https://www.xyz.com/"))
{
String url = (e.Url.ToString()).Replace("https://www.xyz.com/?","");
if( url.Contains("oauth_token="))
{
string OAuthToken = url.Split('&')[0].Replace("oauth_token=", "");
var uri = "https://api.500px.com/v1/oauth/access_token";
OAuthBase oAuth = new OAuthBase();
var nonce = oAuth.GenerateNonce();
var timeStamp = oAuth.GenerateTimeStamp();
var signature = oAuth.GenerateSignature(new Uri(uri), consumerKey, consumerSecret,
OAuthToken, String.Empty, "POST", timeStamp, nonce,
OAuthBase.SignatureTypes.HMACSHA1, out normalizedUrl, out normalizedRequestParameters);
signature = HttpUtility.UrlEncode(signature);
var requestUri = normalizedUrl + "?" + "oauth_callback=https://www.xyz.com" +"?"+ normalizedRequestParameters + "&oauth_signature=" + myOAuth.UrlEncode(signature);
Console.WriteLine(requestUri);
var request = (HttpWebRequest)WebRequest.Create(requestUri.ToString());
request.Method = WebRequestMethods.Http.Post;
request.ContentType = "application/json";
// request.ContentType = "application / x - www - form - urlencoded";
//request.Credentials = CredentialCache.DefaultCredentials;
//request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)";
var response = request.GetResponse();
var reader = new StreamReader(response.GetResponseStream());
var accessToken = reader.ReadToEnd();
}
}
catch(Exception ex)
{
Console.Writeln(ex.toString());
}
}
现在,下面是我的代码中断的行:-
var response = request.GetResponse();
在这个问题上,我完全无能为力,无法找到根源。 任何方向的帮助将不胜感激。 任何建议都会有很大帮助!!
在此先感谢一吨!
这是做什么的:
使用GET而不是POST(POST可能会起作用;我尚未尝试过,但500px和POST的成功很少)
在查询URL中包括在授权步骤中收到的oauth_verifier
使用您的使用者密钥对整个查询签名并请求令牌密钥(在步骤1中返回)
HTTP回复正文中应返回“ oauth_token = ...&oauth_token_secret = ...”的代码段。
确保您的OAuth实现不会删除任何以“ oauth_”开头的参数! 我的是,它正在剥离500像素所需的oauth_verifier参数。
OAuth.OAuthBase oauth = new OAuth.OAuthBase();
string strUrl = "";
string strParams = "";
string signature = oauth.GenerateSignature(new Uri(API_URL + "oauth/access_token?oauth_verifier=" + this.oauthVerifier),
this.consumerKey, this.consumerSecret, this.oauthToken, this.requestTokenSecret,
"GET", oauth.GenerateTimeStamp(), oauth.GenerateNonce(),
OAuth.OAuthBase.SignatureTypes.HMACSHA1,
out strUrl, out strParams);
string authorizationUrl = strUrl + "?" + strParams + "&oauth_signature=" + System.Web.HttpUtility.UrlEncode(signature);
Debug.WriteLine("url>" + authorizationUrl);
Response reply = SendGetRequest(authorizationUrl);
if (reply.Success)
{
Debug.WriteLine("access_token>" + reply.Content);
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.