7WwWx5NP

1public async Task<bool> Push(TwitterMessage twitterMessage)
2    {
3        const string updateApi = "http://api.twitter.com/1/statuses/update.json";
4        const string oauthConsumerKey = "<consumerKey>";
5        const string consumerSecret = "<consumerSecret>";
6        const string oauthSignatureMethod = "HMAC-SHA1";
7        const string oauthTokenSecret = "<tokenSecret>";
8        var signingKey = string.Format("{0}&{1}", consumerSecret.Escaped(), oauthTokenSecret.Escaped());
9
10        var postBody = "status=" + Uri.EscapeDataString(twitterMessage.MessageContent);
11        var oauthNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
12        var oauthToken = "<authenticatedUserToken>";
13        var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
14        var oauthTimestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
15
16        var message = string.Format("POST {0}?{1} HTTP/1.1", updateApi, postBody.Escaped());
17        var hasher = new HMACSHA1(new ASCIIEncoding().GetBytes(signingKey));
18        var signatureString = Convert.ToBase64String(hasher.ComputeHash(new ASCIIEncoding().GetBytes(message)));
19
20        ServicePointManager.Expect100Continue = false;
21
22        var request = (HttpWebRequest)WebRequest.Create(updateApi);
23        request.KeepAlive = false;
24
25        var authorisationBuilder = new StringBuilder();
26        authorisationBuilder.Append("OAuth ");
27        authorisationBuilder.AppendFormat("oauth_consumer_key="{0}",", oauthConsumerKey.Escaped());
28        authorisationBuilder.AppendFormat("oauth_signature_method="{0}",", oauthSignatureMethod.Escaped());
29        authorisationBuilder.AppendFormat("oauth_timestamp="{0}",", oauthTimestamp.Escaped());
30        authorisationBuilder.AppendFormat("oauth_nonce="{0}",", oauthNonce.Escaped());
31        authorisationBuilder.AppendFormat("oauth_token="{0}",", oauthToken.Escaped());
32        authorisationBuilder.AppendFormat("oauth_signature="{0}"", signatureString.Escaped());
33        var authorisation = authorisationBuilder.ToString();
34        request.Headers.Add("Authorization", authorisation);
35
36        request.Method = "POST";
37        request.ContentType = "application/x-www-form-urlencoded";
38        using (var stream = await request.GetRequestStreamAsync())
39        {
40            var bodyBytes = new ASCIIEncoding().GetBytes(postBody);
41            stream.Write(bodyBytes, 0, bodyBytes.Length);
42        }
43
44        //Allow us a reasonable timeout in case Twitter's busy
45        request.Timeout = 3 * 60 * 1000;
46
47        try
48        {
49            var response = await request.GetResponseAsync() as HttpWebResponse;
50            return true;
51        }
52        catch (WebException)
53        {
54            return false;
55        } 
56    }
57
58    public static string Escaped(this string input)
59    {
60        return Uri.EscapeDataString(input);
61    }
62	
63protected void btnTweet_Click(object sender, EventArgs e)
64{
65 string oauthAccessToken = Session["twtoken"].ToString();
66 string oauthAccessTokenSecret = Session["twsecret"].ToString();
67
68 OAuthHelper oauthhelper = new OAuthHelper();
69 oauthhelper.TweetOnBehalfOf(oauthAccessToken, oauthAccessTokenSecret, txtTweet.Text);
70
71 if (string.IsNullOrEmpty(oauthhelper.oauth_error))
72      Response.Write("Twit Posted Successfully");
73 else
74      Response.Write(oauthhelper.oauth_error);
75}
76	
77public async Task<bool> Push(TwitterAccount account)
78{
79    var twitterService = new TwitterService(consumerKey, consumerSecret);
80    twitterService.AuthenticateWith(account.AccessToken, account.AccessTokenSecret);
81    var options = new SendTweetOptions {Status = string.Format("{0} {1}", account.Message.MessageContent, account.Message.ShortLink)};
82    var status = twitterService.SendTweet(options);
83    return status != null;
84}