public async Task <GoogleSession> LoginAsync()
{
if (string.IsNullOrEmpty(_clientId))
{
throw new NullReferenceException("You must register app at first!");
}
Session = await PromptOAuthDialog(_clientId, WebAuthenticationOptions.None);
return(Session);
}
public async Task <GoogleSession> GetToken(string code)
{
var parameters = new Dictionary <string, string>
{
{ "code", code },
{ "client_id", _clientId },
{ "client_secret", _clientSecret },
{ "redirect_uri", GooglePlusResources.RedirectUri },
{ "grant_type", "authorization_code" }
};
Session = await DoPostRequest <GoogleSession>(GooglePlusResources.GeneralOAuthUri + "/token", parameters);
return(Session);
}
public bool IsLogged()
{
Proxy.RegisterApp(ClientId, ClientSecret);
try
{
_session = StorageService.GetValue <GoogleSession>(ACCOUNT_STORAGE_KEY);
Proxy.Session = _session;
return(true);
}
catch (KeyNotFoundException)
{
Log.Write("Google session isn't in cache");
}
return(false);
}
public async Task <GoogleSession> RefreshTokenAsync(GoogleSession session)
{
_refreshToken = session.RefreshToken;
var parameters = new Dictionary <string, string>
{
{ "client_id", _clientId },
{ "client_secret", _clientSecret },
{ "refresh_token", session.RefreshToken },
{ "grant_type", "refresh_token" }
};
Session = await DoPostRequest <GoogleSession>(GooglePlusResources.GeneralOAuthUri + "/token", parameters);
Session.RefreshToken = _refreshToken;
return(Session);
}
private async Task CheckSession()
{
if (DateTime.Now < _session.TokenExpireDateTime)
{
return;
}
try
{
_session = await Proxy.RefreshTokenAsync(_session);
}
catch (Exception ex)
{
Log.Write(string.Format("Refresh token Error: {0}", ex.Message));
throw;
}
}
public async Task <bool> LoginAsync()
{
if (IsLogged())
{
return(true);
}
try
{
_session = await Proxy.LoginAsync();
StorageService.SetValue(ACCOUNT_STORAGE_KEY, _session);
}
catch (Exception ex)
{
Log.Write(string.Format("LoginAsync Error: {0}", ex.Message));
throw;
}
return(true);
}