public string LoginToUri()
{
StopListen();
oAuthWrapper = new DropBoxOauthClient(ApiKey, RedirectUrl);
string state = oAuthWrapper.GetTokenToUri();
return(state);
}
public async Task <CloudStorageResult> InitAsync()
{
CloudStorageResult result = new CloudStorageResult();
bool IsNeedLogin = true;
try
{
// 取得上次登入資訊
LastAccessToken = LoadAccessTokenDelegate?.Invoke();
LastRefreshToken = LoadRefreshTokenDelegate?.Invoke();
// 初始化
oAuthWrapper = new DropBoxOauthClient(ApiKey, RedirectUrl);
if (!string.IsNullOrEmpty(LastRefreshToken)) // offline 類型的 token
{
IsNeedLogin = !await oAuthWrapper.RefreshTokenAsync(LastRefreshToken);
if (IsNeedLogin)
{
result.Status = Status.NeedAuthenticate;
LastAccessToken = LastRefreshToken = null;
}
else
{
result.Status = Status.Success;
// 儲存新的access token/refresh token
SaveAccessTokenDelegate?.Invoke(oAuthWrapper.AccessToken);
InitDriveService();
}
}
else if (!string.IsNullOrEmpty(LastAccessToken)) // legacy 類型的 token，不需要refresh
{
result.Status = Status.Success;
InitDriveService();
}
else
{
// each token is empty, need login
result.Status = Status.NeedAuthenticate;
result.Message = "Empty access and refresh token.";
}
}
catch (Exception ex)
{
result.Status = Status.UnknownError;
result.Message = ex.Message;
}
return(result);
}