试图发布Tumblr（未授权）

Question

我正在尝试在Tumblr上创建一篇文章博客文章。 当我运行此代码时，我收到错误：“未授权”

我相信我在POST方法中传递了签名。我不擅长这样做，所以我无法理解我做错了什么。

我使用过这个.cs类：“ OAuthBase ” https://gist.github.com/tsupo/112124#file-oauthbase-cs

代码：

            var postUrl = "http://api.tumblr.com/v2/blog/this-is-my-blog-name.tumblr.com/post";
        using (var wc = new WebClient())
        {
            var oauth = new OAuthBase();
            var consumerKey = "1j1j1j1j1j1j1j1j1";
            var consumerSecret = "2j2j2j2j2j2j2j2j";
            var oauthToken = "3j3j3j3j3j3j3j3j3j3";
            var oauthTokenSecret = "4j4j4j4j4j4j4j4j44j";
            var timestamp = oauth.GenerateTimeStamp();
            var nonce = oauth.GenerateNonce();
            string url, url2;
            var values = new System.Collections.Specialized.NameValueCollection();

            //This is the blog post title and text
            values.Add("title", "Title of blog post");
            values.Add("type", "text");
            values.Add("body", "This is the Blog text");

            var postUri = new Uri(postUrl);
            var signature = oauth.GenerateSignature(
                postUri,
                consumerKey,
                consumerSecret,
                oauthToken,
                oauthTokenSecret,
                "POST",
                timestamp,
                nonce,
                null,
                out url,
                out url2);
            var urlEncodedSignature = oauth.UrlEncode(signature);
            var authHeader = "OAuth " + url2 + "&oauth_signature=" + urlEncodedSignature + "\"";
            authHeader = authHeader.Replace("&", "\", ").Replace("=", "=\"");
            wc.Headers.Add("Authorization", authHeader);
            try
            {
                wc.UploadValues(postUri, values);
            }
            catch (WebException webException)
            {
                var message = (new StreamReader(webException.Response.GetResponseStream())).ReadToEnd();
                MessageBox.Show(message.ToString());
            }
        }