c# – 使用api 1.1的Twitter POST问题
作者：互联网
我们刚刚更改为Twitter api 1.1,现在推特不起作用&返回错误“远程服务器返回错误：(400)错误请求.”关于SO的研究表明它与身份验证有关,但我们发送的是accessToken& amp;我们刚从登录页面获得的秘密.这一切都适用于api 1.0.代码是 –
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,我希望能够在不使用Twitterizer之类的任何第三方库的情况下发推文(甚至TweetStation似乎被api 1.1打破了) – 当然不会那么难！
任何帮助都非常感激,因为它现在感觉有点像砖墙 – 我也是c#的新手,这没有帮助……
编辑显示以前不清楚的代码.
解决方法:
终于找到了解决方案,和大多数这些东西一样,它非常简单.代码如下 –
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 api 1.0,我使用WebClient发布,这不适用于api 1.1,似乎这样做的原因是你不能设置ContentType或ServicePoint.Expect100Continue属性 – 没有这些设置为我已经设置了它们,请求被发送回(401)未授权.最后与编码问题无关.
感谢其他人的各种助手方法.
标签：c,twitter,oauth,bad-request 来源： https://codeday.me/bug/20190612/1228749.html