private void CheckForSession()
{
if (_session != null)
{
return;
}
var access = Repository.Queryable <MemberStorageAccess>()
.FirstOrDefault(
s => s.MemberId == CurrentMemberId && (int)s.Type == (int)StorageProviderType.OneDrive);
if (access == null)
{
throw new InvalidCredentialException("Accesstoken could not be found");
}
var restClient = new RestClient("https://login.live.com/oauth20_token.srf");
var request = new RestRequest();
request.Method = Method.POST;
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
var body =
string.Format(
"client_id={0}&redirect_uri={1}&client_secret={2}&refresh_token={3}&grant_type=refresh_token"
, Startup.MicrosoftClientId, RedirectUrl, Startup.MicrosoftClientSecret, access.Token);
request.AddParameter("application/x-www-form-urlencoded", body, ParameterType.RequestBody);
var result = restClient.Execute(request);
dynamic token = JsonConvert.DeserializeObject(result.Content);
access.Token = token.refresh_token;
string userId = token.user_id;
Repository.Update(access);
//TODO: Hier muss noch überprüft werden, wie mit eventuellen Timeouts umgegangen wird
//falls der Benutzer sich tage/wochenlange nicht anmeldet und Synchronisiert
_liveAuthClient = new LiveAuthClient(Startup.MicrosoftClientId, Startup.MicrosoftClientSecret, RedirectUrl,
new TokenHandler(access.Token, userId));
var authorizeResult = _liveAuthClient.InitializeSessionAsync(RedirectUrl).Result;
if (authorizeResult.Status != LiveConnectSessionStatus.Connected)
{
throw new InvalidCredentialException("One Drive cannot be authorized");
}
_session = _liveAuthClient.Session;
GetFolderIds();
}
