本文介绍了使用API 1.1 Twitter发布的问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我们刚刚变更为Twitter的API 1.1，现在推特不起作用&安培;返回错误远程服务器返回错误：（400）错误的请求。在研究关于SO这表明它的东西做认证，但我们发送的accessToken&放大器;秘密，那我们刚刚从登录页面了。这一切都工作得很好用API 1.0。该代码是 -
We've just changed to Twitter api 1.1, and now Tweeting doesn't work & returns an error "The remote server returned an error: (400) Bad Request." Researching on SO about this suggests that it's something to do with authentication, but we are sending the accessToken & secret which we've just got from the login page. It all worked fine with api 1.0. The code is -
public void Tweet(Action<string> response, string message)
{
StringBuilder sb = new StringBuilder();
sb.Append("POST&");
sb.Append(Uri.EscapeDataString(_postUrl));
sb.Append("&");
string oauthNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
string timeStamp = MakeTimestamp();
var dict = new SortedDictionary<string, string>
{
{ "oauth_consumer_key", _oAuthConfig.ConsumerKey },
{ "oauth_nonce", oauthNonce },
{ "oauth_signature_method", "HMAC-SHA1" },
{ "oauth_timestamp", timeStamp },
{ "oauth_token", _accessToken },
{ "oauth_version", "1.0" },
};
foreach (var keyValuePair in dict)
{
sb.Append(Uri.EscapeDataString(string.Format("{0}={1}&", keyValuePair.Key, keyValuePair.Value)));
}
string encodedMessage = EscapeAdditionalChars(Uri.EscapeDataString(message));
sb.Append(Uri.EscapeDataString("status=" + encodedMessage));
string signatureBaseString = sb.ToString();
// create the signature
string signatureKey = Uri.EscapeDataString(_oAuthConfig.ConsumerSecret) + "&" + Uri.EscapeDataString(_accessTokenSecret);
var hmacsha1 = new HMACSHA1(new ASCIIEncoding().GetBytes(signatureKey));
string signatureString = Convert.ToBase64String(hmacsha1.ComputeHash(new ASCIIEncoding().GetBytes(signatureBaseString)));
// create the headers
string authorizationHeaderParams = String.Empty;
authorizationHeaderParams += "OAuth ";
authorizationHeaderParams += "oauth_consumer_key=\"" + _oAuthConfig.ConsumerKey + "\", ";
authorizationHeaderParams += "oauth_nonce=\"" + oauthNonce + "\", ";
authorizationHeaderParams += "oauth_signature=\"" + Uri.EscapeDataString(signatureString) + "\", ";
authorizationHeaderParams += "oauth_signature_method=\"" + "HMAC-SHA1" + "\", ";
authorizationHeaderParams += "oauth_timestamp=\"" + timeStamp + "\", ";
authorizationHeaderParams += "oauth_token=\"" + _accessToken + "\", ";
authorizationHeaderParams += "oauth_version=\"" + "1.0" + "\"";
string messageToPost = EscapeAdditionalChars(SpacesToPlusSigns(message));
// initialise the WebClient
WebClient client = new WebClient();
client.Headers [HttpRequestHeader.Authorization] = authorizationHeaderParams;
client.UploadDataCompleted += (s, eArgs) =>
{
if (eArgs.Error == null)
response(DefaultSuccessMessage());
else
response(eArgs.Error.Message);
};
try
{
Uri uri = new Uri(_postUrl);
try
{
client.UploadDataAsync(uri, "POST", Encoding.UTF8.GetBytes("status=" + messageToPost));
}
catch (WebException e)
{
Log.Info("TwitterService->Tweet web error: " + e.Message);
response(DefaultErrorMessage());
}
catch (Exception e)
{
// Can happen if we had already favorited this status
Log.Info("TwitterService->Tweet error: " + e.Message);
response(DefaultErrorMessage());
}
}
catch (WebException e)
{
Log.Info("TwitterService->Tweet web error 2: " + e.Message);
response(DefaultErrorMessage());
}
catch (Exception e)
{
Log.Info("TwitterService->Tweet error 2: " + e.Message);
response(DefaultErrorMessage());
}
}
基本上，我希望能够分享Tweet不使用任何第三方库，如Twitterizer（甚至TweetStation似乎与API 1.1被打破） - 当然，它不能是困难的。
Basically, I'd like to be able to Tweet without using any 3rd party libraries such as Twitterizer (even TweetStation seems to be broken with api 1.1) - surely it can't be that difficult!
任何帮助非常赞赏，因为这感觉有点像此刻砖墙 - 我也相当新的C＃，这不利于...
Any help much appreciated, as it feels a bit like a brick wall at the moment - I'm also fairly new to c#, which doesn't help...
编辑，以显示代码，以前未清除。
Edited to show code which wasn't clear previously.
推荐答案
终于找到了解决办法，像往常一样与大多数的这些东西，这是非常简单的。下面的代码 -
Finally found the solution, as usual with most of these things, it was pretty simple. Code below -
public void Tweet(Action<string> response, string message)
{
StringBuilder sb = new StringBuilder();
sb.AppendFormat ("status={0}", PercentEncode(message));
string content = sb.ToString();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_postUrl);
request.Headers.Add("Authorization", AuthorizeRequest(_accessToken, _accessTokenSecret, "POST", new Uri(_postUrl), content));
request.ContentType = "application/x-www-form-urlencoded";
request.ServicePoint.Expect100Continue = false;
request.Method = "POST";
try
{
try
{
using (Stream stream = request.GetRequestStream())
{
Byte[] streamContent = Encoding.UTF8.GetBytes("status=" + PercentEncode(message));
stream.Write(streamContent, 0, streamContent.Length);
}
HttpWebResponse webResponse = (HttpWebResponse)request.GetResponse();
string contents = "";
using (Stream stream = webResponse.GetResponseStream())
using (StreamReader reader = new StreamReader(stream))
{
contents = reader.ReadToEnd();
}
Console.WriteLine("Twitter response: " + contents);
response(DefaultSuccessMessage());
}
catch (WebException e)
{
Log.Info("TwitterService->Tweet web error: " + e.Message);
response(DefaultErrorMessage());
}
catch (Exception e)
{
// Can happen if we had already favorited this status
Log.Info("TwitterService->Tweet error: " + e.Message);
response(DefaultErrorMessage());
}
}
catch (WebException e)
{
Log.Info("TwitterService->Tweet web error 2: " + e.Message);
response(DefaultErrorMessage());
}
catch (Exception e)
{
Log.Info("TwitterService->Tweet error 2: " + e.Message);
response(DefaultErrorMessage());
}
}
private string AuthorizeRequest(string oauthToken, string oauthTokenSecret, string method, Uri uri, string data)
{
string oauthNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var headers = new Dictionary<string, string>()
{
{ "oauth_consumer_key", _oAuthConfig.ConsumerKey },
{ "oauth_nonce", oauthNonce },
{ "oauth_signature_method", "HMAC-SHA1" },
{ "oauth_timestamp", MakeTimestamp() },
{ "oauth_token", oauthToken },
{ "oauth_verifier", PercentEncode(_authorizationVerifier) },
{ "oauth_version", "1.0A" }
};
var signatureHeaders = new Dictionary<string,string>(headers);
// Add the data and URL query string to the copy of the headers for computing the signature
if (data != null && data != "")
{
var parsed = HttpUtility.ParseQueryString(data);
foreach (string k in parsed.Keys)
{
signatureHeaders.Add(k, PercentEncode(parsed [k]));
}
}
var nvc = HttpUtility.ParseQueryString(uri.Query);
foreach (string key in nvc)
{
if (key != null)
signatureHeaders.Add(key, PercentEncode(nvc [key]));
}
string signature = MakeSignature (method, uri.GetLeftPart(UriPartial.Path), signatureHeaders);
string compositeSigningKey = MakeSigningKey(_oAuthConfig.ConsumerSecret, oauthTokenSecret);
string oauth_signature = MakeOAuthSignature(compositeSigningKey, signature);
headers.Add ("oauth_signature", PercentEncode(oauth_signature));
return HeadersToOAuth(headers);
}
private static string PercentEncode (string s)
{
var sb = new StringBuilder ();
foreach (byte c in Encoding.UTF8.GetBytes (s))
{
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '-' || c == '_' || c == '.' || c == '~')
sb.Append ((char) c);
else
{
sb.AppendFormat ("%{0:X2}", c);
}
}
return sb.ToString ();
}
private static string MakeTimestamp ()
{
return ((long) (DateTime.UtcNow - _unixBaseTime).TotalSeconds).ToString ();
}
private static string MakeSignature (string method, string base_uri, Dictionary<string,string> headers)
{
var items = from k in headers.Keys orderby k
select k + "%3D" + PercentEncode (headers [k]);
return method + "&" + PercentEncode (base_uri) + "&" +
string.Join ("%26", items.ToArray ());
}
private static string MakeSigningKey (string consumerSecret, string oauthTokenSecret)
{
return PercentEncode (consumerSecret) + "&" + (oauthTokenSecret != null ? PercentEncode (oauthTokenSecret) : "");
}
private static string MakeOAuthSignature (string compositeSigningKey, string signatureBase)
{
var sha1 = new HMACSHA1 (Encoding.UTF8.GetBytes (compositeSigningKey));
return Convert.ToBase64String (sha1.ComputeHash (Encoding.UTF8.GetBytes (signatureBase)));
}
private static string HeadersToOAuth (Dictionary<string,string> headers)
{
return "OAuth " + String.Join (",", (from x in headers.Keys select String.Format ("{0}=\"{1}\"", x, headers [x])).ToArray ());
}
使用Twitter的API 1.0，我用了一个Web客户端发布，一点不与API 1.1工作，似乎这样做的原因是，你不能设置的ContentType或ServicePoint.Expect100Continue性能 - 如果没有这些设置为我设置他们，请求被发送回为（401）未经授权。无关到底编码问题。
With Twitter api 1.0, I used a WebClient to post, that doesn't work with api 1.1, and it seems that the reason for this is that you can't set the ContentType or the ServicePoint.Expect100Continue properties - without these set as I've set them, the request is sent back as (401) unauthorized. Nothing to do with encoding problems in the end.
感谢他人的各种辅助方法。
Thanks to others for the various helper methods.
这篇关于使用API 1.1 Twitter发布的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！