public static async Task <OAuthTokens> GetAccessToken(string twitterConsumerKey, string twitterConsumerSecret, string accessToken, string accessTokenSecret, string oauthVerifier)
{
return(await RequestHandler(async() =>
{
const string requestTokenUrl = "https://api.twitter.com/oauth/access_token";
var oauth = OAuthFactory.CreateOAuth(twitterConsumerKey, twitterConsumerSecret);
var nonce = oauth.Nonce();
var timestamp = oauth.TimeStamp();
var parameters = new[] { new[] { "oauth_verifier", oauthVerifier } };
var signature = oauth.Signature("POST", requestTokenUrl, nonce, timestamp, accessToken, accessTokenSecret, parameters);
var authorizationHeader = oauth.AuthorizationHeader(nonce, timestamp, accessToken, signature, parameters);
var request = System.Net.WebRequest.Create(new Uri(requestTokenUrl));
request.Method = "POST";
request.Headers.Add("Authorization", authorizationHeader);
using (var response = await request.GetResponseAsync())
using (var stream = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
var tokens = stream.ReadToEnd().Split('&');
var oauthTokens = new OAuthTokens
{
OAuthToken = Token(tokens[0]),
OAuthSecret = Token(tokens[1]),
UserId = Token(tokens[2]),
};
return oauthTokens;
}
}));
}
public static async Task <OAuthTokens> GetRequestToken(string twitterConsumerKey, string twitterConsumerSecret)
{
return(await RequestHandler(async() =>
{
const string requestTokenUrl = "https://api.twitter.com/oauth/request_token";
var oauth = OAuthFactory.CreateOAuth(twitterConsumerKey, twitterConsumerSecret);
var nonce = oauth.Nonce();
var timestamp = oauth.TimeStamp();
var parameters = new[] { new[] { "oauth_callback", "oob" } };
var signature = oauth.Signature("POST", requestTokenUrl, nonce, timestamp, "", "", parameters);
var authorizationHeader = oauth.AuthorizationHeader(nonce, timestamp, null, signature, parameters);
var request = System.Net.WebRequest.Create(new Uri(requestTokenUrl));
request.Method = "POST";
request.Headers.Add("Authorization", authorizationHeader);
using (var response = await request.GetResponseAsync())
using (var stream = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
var body = stream.ReadToEnd();
var tokens = body.Split('&');
var oauthToken = Token(tokens[0]);
var oauthSecret = Token(tokens[1]);
var callbackConfirmed = Token(tokens[2]);
if (callbackConfirmed != "true")
{
throw new InvalidProgramException("callback token not confirmed");
}
return new OAuthTokens {
OAuthToken = oauthToken, OAuthSecret = oauthSecret
};
}
}));
}