public string CreateAndSignAccessToken(string oauth_token)
{
var accessToken = FluentTwitter.CreateRequest()
.Authentication.GetAccessToken(OAuth.GetOAuthSecrets().Key, OAuth.GetOAuthSecrets().Secret, oauth_token);
var response = accessToken.Request();
var result = response.AsToken();
if (result == null)
{
var error = response.AsError();
if (error != null)
{
throw new Exception(error.ErrorMessage);
}
throw new Exception();
}
if (result.Token != null && result.TokenSecret != null && result.ScreenName != null)
{
return(SignedString.CreateSignedString(Encryptor.EncryptString(SerializeToken(result), EncryptingKey),
SigningKey));
}
else
{
return(null);
}
}
public OAuthToken GetTokenFromCooke(HttpCookie cookie)
{
if (cookie == null)
{
return(null);
}
if (cookie.Value == null)
{
return(null);
}
try
{
var serialized = Encryptor.DescryptString(
SignedString.ExtractAndVerifyMessage(cookie.Value, SigningKey),
EncryptingKey);
return(DeserializeToken(serialized));
}
catch (CryptographicException)
{
//a cryptographic exception could be thrown if we changed keys...
//beware though, this can disguise bad crypto code too
return(null);
}
catch (InvalidSignatureExecption)
{
return(null);
}
}
