/// <summary>
/// Allows OAuth applications to directly exchange Twitter usernames and passwords for OAuth access tokens and secrets.
/// </summary>
/// <param name="consumerKey">The consumer key.</param>
/// <param name="consumerSecret">The consumer secret.</param>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <returns>A <see cref="OAuthTokenResponse"/> instance.</returns>
public static OAuthTokenResponse GetAccessTokens(string consumerKey, string consumerSecret, string username, string password)
{
if (string.IsNullOrEmpty(consumerKey))
{
throw new ArgumentNullException("consumerKey");
}
if (string.IsNullOrEmpty(consumerSecret))
{
throw new ArgumentNullException("consumerSecret");
}
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException("username");
}
if (string.IsNullOrEmpty(password))
{
throw new ArgumentNullException("password");
}
OAuthTokenResponse response = new OAuthTokenResponse();
try
{
WebRequestBuilder builder = new WebRequestBuilder(
new Uri("https://api.twitter.com/oauth/access_token"),
HTTPVerb.POST,
new OAuthTokens() { ConsumerKey = consumerKey, ConsumerSecret = consumerSecret },
"");
builder.Parameters.Add("x_auth_username", username);
builder.Parameters.Add("x_auth_password", password);
builder.Parameters.Add("x_auth_mode", "client_auth");
string responseBody = new StreamReader(builder.ExecuteRequest().GetResponseStream()).ReadToEnd();
response.Token = Regex.Match(responseBody, @"oauth_token=([^&]+)").Groups[1].Value;
response.TokenSecret = Regex.Match(responseBody, @"oauth_token_secret=([^&]+)").Groups[1].Value;
if (responseBody.Contains("user_id="))
response.UserId = long.Parse(Regex.Match(responseBody, @"user_id=([^&]+)").Groups[1].Value, CultureInfo.CurrentCulture);
response.ScreenName = Regex.Match(responseBody, @"screen_name=([^&]+)").Groups[1].Value;
}
catch (WebException wex)
{
throw new Exception(wex.Message, wex);
}
return response;
}
public bool UserAccepted(string queryString)
{
NameValueCollection nvc = HttpUtility.ParseQueryString(queryString);
string requestToken = nvc["oauth_token"];
string verifier = nvc["oauth_verifier"];
this.accessTokenResponse =
OAuthUtility.GetAccessToken(this.ConsumerKey,
this.ConsumerSecret,
requestToken, string.Empty,
verifier, LOLConstants.LinkTwitterAccessTokenUrl,
HTTPVerb.GET, ServiceType.Twitter);
this.UserId = Convert.ToString(this.accessTokenResponse.UserId);
this.ScreenName = Convert.ToString(this.accessTokenResponse.ScreenName);
return true;
}
public bool UserAccepted(string queryString)
{
NameValueCollection nvc = HttpUtility.ParseQueryString(queryString);
string requestToken = nvc ["oauth_token"];
string verifier = nvc ["oauth_verifier"];
this.accessTokenResponse =
OAuthUtility.GetAccessToken(this.ConsumerKey,
this.ConsumerSecret,
requestToken, this.authTokenResponse.TokenSecret,
verifier, LOLConstants.LinkLinkedInAccessTokenUrl,
HTTPVerb.POST, ServiceType.LinkedIn);
return true;
}
public string GetBrowserAuthUrl()
{
this.authTokenResponse =
OAuthUtility.GetRequestToken(LOLConstants.LinkedInConsumerKey,
LOLConstants.LinkedInConsumerSecret,
LOLConstants.LinkLinkedInCallbackUrl,
LOLConstants.LinkLinkedInRequestTokenUrl, HTTPVerb.POST);
Uri authorizationUri =
OAuthUtility.BuildAuthorizationUri(authTokenResponse.Token, true, LOLConstants.LinkLinkedInAuthUrl);
return authorizationUri.AbsoluteUri;
}
public static OAuthTokenResponse GetAccessToken(string consumerKey, string consumerSecret, string requestToken, string accessTokenSecret, string verifier, string accessTokenUrl, HTTPVerb httpVerb, ServiceType serviceType)
{
if (string.IsNullOrEmpty(consumerKey))
{
throw new ArgumentNullException("consumerKey");
}
if (string.IsNullOrEmpty(consumerSecret))
{
throw new ArgumentNullException("consumerSecret");
}
if (string.IsNullOrEmpty(requestToken))
{
throw new ArgumentNullException("requestToken");
}
WebRequestBuilder builder = new WebRequestBuilder(
new Uri(accessTokenUrl),
httpVerb,
//new OAuthTokens { ConsumerKey = consumerKey, ConsumerSecret = consumerSecret },
new OAuthTokens { ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, AccessToken = requestToken, AccessTokenSecret = accessTokenSecret },
"");
if (!string.IsNullOrEmpty(verifier))
{
builder.Parameters.Add("oauth_verifier", verifier);
}
builder.Parameters.Add("oauth_token", requestToken);
string responseBody;
try
{
HttpWebResponse webResponse = builder.ExecuteRequest();
responseBody = new StreamReader(webResponse.GetResponseStream()).ReadToEnd();
}
catch (WebException wex)
{
throw new Exception(wex.Message, wex);
}
OAuthTokenResponse response = new OAuthTokenResponse();
response.Token = Regex.Match(responseBody, @"oauth_token=([^&]+)").Groups[1].Value;
response.TokenSecret = Regex.Match(responseBody, @"oauth_token_secret=([^&]+)").Groups[1].Value;
if (serviceType == ServiceType.Twitter)
{
response.UserId = long.Parse(Regex.Match(responseBody, @"user_id=([^&]+)").Groups[1].Value, CultureInfo.CurrentCulture);
response.ScreenName = Regex.Match(responseBody, @"screen_name=([^&]+)").Groups[1].Value;
} else if (serviceType == ServiceType.DropBox)
{
response.UserId = long.Parse(Regex.Match(responseBody, @"uid=([^&]+)").Groups[1].Value, CultureInfo.CurrentCulture);
}//end if
return response;
}
