public async Task <OAuthCompleteInformation> Authorize(Func <string, Task <string> > extractVerifier)
{
var res = await RequestToken();
if ((res == null) || (!TokenIsPartialOrValid))
{
return(null);
}
var url = GetAuthorizeUrl();
var verifier = await extractVerifier(url);
return(_CompleteInformation = await Access(verifier));
}
private async Task <OAuthCompleteInformation> RequestToken()
{
if (_CompleteInformation != null)
{
return(_CompleteInformation);
}
if (_TokenInformation?.PartialOrValid == true)
{
return(null);
}
var requestTokenClient = GetRequestTokenClient(RequestUrl);
_TokenInformation = await GetTokenInformationFromRequest(requestTokenClient, _RequestTokenUrl);
if (!TokenIsValid)
{
return(null);
}
return(_CompleteInformation = new OAuthCompleteInformation(_ConsumerInformation, _TokenInformation));
}
