为什么我要求Twitter用户时间线返回“401未经授权”?

本文关键字：授权返回我要 Twitter 用户时间线为什么 | 更新日期: 2023-09-27 18:19:09

我有以下代码无耻地从dev.twitter获取特定用户的时间线:

string endpoint = "https://api.twitter.com/1.1/statuses/user_timeline.json";
string user_name = ".....";
string ConsumerKey = "....";
string ConsumerSecret = "........";
string Token = ".......";
string TokenSecret = "........";
// oauth application keys
var oauth_token = Token;
var oauth_token_secret = TokenSecret;
var oauth_consumer_key = ConsumerKey;
var oauth_consumer_secret = ConsumerSecret;
// oauth implementation details
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
// unique request details
var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow
    - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
                "&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&screen_name={6}";
var baseString = string.Format(baseFormat,
                            oauth_consumer_key,
                            oauth_nonce,
                            oauth_signature_method,
                            oauth_timestamp,
                            oauth_token,
                            oauth_version,
                            user_name
                            );
//&include_rts=true &exclude_replies=false
baseString = string.Concat("GET&", Uri.EscapeDataString(endpoint), "&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauth_consumer_secret),
                        "&", Uri.EscapeDataString(oauth_token_secret));
string oauth_signature;
using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
    oauth_signature = Convert.ToBase64String(hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
}
string headerFormat = "OAuth oauth_nonce='"{0}'", oauth_signature_method='"{1}'", " +
                      "oauth_timestamp='"{2}'", oauth_consumer_key='"{3}'", " +
                      "oauth_token='"{4}'", oauth_signature='"{5}'", " +
                      "oauth_version='"{6}'",screen_name='"{7}'"";
var authHeader = string.Format(headerFormat,
                               Uri.EscapeDataString(oauth_nonce),
                               Uri.EscapeDataString(oauth_signature_method),
                               Uri.EscapeDataString(oauth_timestamp),
                               Uri.EscapeDataString(oauth_consumer_key),
                               Uri.EscapeDataString(oauth_token),
                               Uri.EscapeDataString(oauth_signature),
                               Uri.EscapeDataString(oauth_version),
                               Uri.EscapeDataString(user_name)
            );
// make the request
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(endpoint);
request.Headers.Add("Authorization", authHeader);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
var response = (HttpWebResponse)request.GetResponse();
var reader = new StreamReader(response.GetResponseStream());
var objText = reader.ReadToEnd();