public Token RetrieveAndStoreAccessToken(string userId, string tokenKey, string verifier)
{
var existingAccessToken = Store.FindAsync(userId).Result;
if (existingAccessToken != null)
{
if (!existingAccessToken.HasExpired)
{
return(new TokenAdapter(existingAccessToken));
}
else
{
Store.DeleteAsync(existingAccessToken);
}
}
var requestToken = requestTokenStore.FindAsync(userId).Result;
if (requestToken == null)
{
throw new ApplicationException("Failed to look up request token for user");
}
//Delete the request token from the _requestTokenStore as the next few lines will render it useless for the future.
requestTokenStore.DeleteAsync(requestToken);
if (requestToken.TokenKey != tokenKey)
{
throw new ApplicationException("Request token key does not match");
}
var accessToken = Tokens.GetAccessTokenAsync(
requestToken,
GetAuthorization(requestToken, "POST", Tokens.AccessTokenEndpoint, null, verifier))
.Result;
accessToken.UserId = userId;
Store.AddAsync(accessToken);
return(new TokenAdapter(accessToken));
}