protected void btnTweet_Click(object sender, EventArgs e)
{
string pin = txtTweetPin.Text;
TwitterAuthenticationReturn authReturn = getTwitterAccessTokenFromAuthorizationCode(pin, oauth_token);
tweet(txtTweet.Text, authReturn.access_token, authReturn.access_token_secret);
}
protected void Button2_Click(object sender, EventArgs e)
{
string pin = txtPin.Text;
//Response.Redirect(pinURL);
TwitterAuthenticationReturn authReturn = getTwitterAccessTokenFromAuthorizationCode(pin, oauth_token);
string hashtag = txtHashtag.Text;
string handler = txtHandler.Text; //"swati39434173";
var query = hashtag + " from:" + handler;
query = Uri.EscapeDataString(query);
string tweetid = searchTweets(query, authReturn.access_token, authReturn.access_token_secret);
string response = reTweets(tweetid, authReturn.access_token, authReturn.access_token_secret);
}
private string tweet(string tweetText, string oauthToken, string OauthTokenSecret)
{
// string oauthCallback = Request.Url.AbsoluteUri;
const string oauthConsumerKey = "AuDl8wV51dOUKFkcfccvHDodU";
const string oauthConsumerSecret = "6xWw64T2IbHJiDudgIJdSyMjvdjeeIHYOCR8Qz8dGvWZwD3y05";
const string oauthVersion = "1.0";
const string oauthSignatureMethod = "HMAC-SHA1";
var oauthNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString(CultureInfo.InvariantCulture)));
var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
var oauthTimestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString(CultureInfo.InvariantCulture);
const string resourceUrl = "https://api.twitter.com/1.1/statuses/update.json";
const string baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&status={6}";
var baseString = string.Format(baseFormat,
oauthConsumerKey,
oauthNonce,
oauthSignatureMethod,
oauthTimestamp,
oauthToken,
oauthVersion,
tweetText
);
baseString = string.Concat("POST&", Uri.EscapeDataString(resourceUrl), "&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauthConsumerSecret),
"&", Uri.EscapeDataString(OauthTokenSecret));
string oauthSignature;
using (var hasher = new HMACSHA1(Encoding.ASCII.GetBytes(compositeKey)))
{
oauthSignature = Convert.ToBase64String(
hasher.ComputeHash(Encoding.ASCII.GetBytes(baseString)));
}
const string headerFormat =
"OAuth oauth_consumer_key=\"{0}\", " +
"oauth_nonce=\"{1}\", " +
"oauth_signature=\"{2}\", " +
"oauth_signature_method=\"{3}\", " +
"oauth_timestamp=\"{4}\", " +
"oauth_token=\"{5}\", " +
"oauth_version=\"{6}\"";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(oauthConsumerKey),
Uri.EscapeDataString(oauthNonce),
Uri.EscapeDataString(oauthSignature),
Uri.EscapeDataString(oauthSignatureMethod),
Uri.EscapeDataString(oauthTimestamp),
Uri.EscapeDataString(oauthToken),
Uri.EscapeDataString(oauthVersion)
);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resourceUrl);
request.Method = "POST";
request.Headers.Add("Authorization", authHeader);
request.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
var entity = "status=" + Uri.EscapeDataString(tweetText);
using (Stream stream = request.GetRequestStream())
{
byte[] content = ASCIIEncoding.ASCII.GetBytes(entity);
stream.Write(content, 0, content.Length);
}
request.Headers.Add("Accept-Encoding", "gzip");
WebResponse response = request.GetResponse();
TwitterAuthenticationReturn twr = new TwitterAuthenticationReturn();
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8);
String resultData = reader.ReadToEnd();
return(resultData);
}
private TwitterAuthenticationReturn getTwitterAccessTokenFromAuthorizationCode(string pin, string oauthToken)
{
// string oauthCallback = Request.Url.AbsoluteUri;
const string oauthConsumerKey = "AuDl8wV51dOUKFkcfccvHDodU";
const string oauthConsumerSecret = "6xWw64T2IbHJiDudgIJdSyMjvdjeeIHYOCR8Qz8dGvWZwD3y05";
const string oauthVersion = "1.0";
const string oauthSignatureMethod = "HMAC-SHA1";
var oauthNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString(CultureInfo.InvariantCulture)));
var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
var oauthTimestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString(CultureInfo.InvariantCulture);
const string resourceUrl = "https://api.twitter.com/oauth/access_token";
const string baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}";
var baseString = string.Format(baseFormat,
oauthConsumerKey,
oauthNonce,
oauthSignatureMethod,
oauthTimestamp,
oauthToken,
oauthVersion
);
baseString = string.Concat("POST&", Uri.EscapeDataString(resourceUrl), "&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauthConsumerSecret),
"&");
string oauthSignature;
using (var hasher = new HMACSHA1(Encoding.ASCII.GetBytes(compositeKey)))
{
oauthSignature = Convert.ToBase64String(
hasher.ComputeHash(Encoding.ASCII.GetBytes(baseString)));
}
const string headerFormat =
"OAuth oauth_consumer_key=\"{0}\", " +
"oauth_nonce=\"{1}\", " +
"oauth_signature=\"{2}\", " +
"oauth_signature_method=\"{3}\", " +
"oauth_timestamp=\"{4}\", " +
"oauth_token=\"{5}\", " +
"oauth_version=\"{6}\"";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(oauthConsumerKey),
Uri.EscapeDataString(oauthNonce),
Uri.EscapeDataString(oauthSignature),
Uri.EscapeDataString(oauthSignatureMethod),
Uri.EscapeDataString(oauthTimestamp),
Uri.EscapeDataString(oauthToken),
Uri.EscapeDataString(oauthVersion)
);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resourceUrl);
request.Method = "POST";
request.Headers.Add("Authorization", authHeader);
request.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
var entity = "oauth_verifier=" + Uri.EscapeDataString(pin);
using (Stream stream = request.GetRequestStream())
{
byte[] content = ASCIIEncoding.ASCII.GetBytes(entity);
stream.Write(content, 0, content.Length);
}
WebResponse response = request.GetResponse();
TwitterAuthenticationReturn twr = new TwitterAuthenticationReturn();
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8);
String resultData = reader.ReadToEnd();
char[] delimeter = { '&' };
string[] tokens = resultData.Split(delimeter);
foreach (string token in tokens)
{
if (token.StartsWith("oauth_token="))
{
twr.access_token = token.Substring(token.IndexOf("=") + 1);
}
if (token.StartsWith("oauth_token_secret="))
{
twr.access_token_secret = token.Substring(token.IndexOf("=") + 1);
}
if (token.StartsWith("user_id="))
{
twr.user_id = token.Substring(token.IndexOf("=") + 1);
}
if (token.StartsWith("screen_name="))
{
twr.screen_name = token.Substring(token.IndexOf("=") + 1);
}
}
return(twr);
}