/// <summary>
/// Logs the user into NVivo Platforms
/// </summary>
/// <param name="parentControl">The control or form to be set as the owner of the dialog</param>
/// <returns>True if authenticated, false if the user cancelled</returns>
public bool Login(Control parentControl)
{
LoginForm loginForm = new LoginForm();
if (loginForm.ShowDialog((parentControl)) == DialogResult.OK)
{
// Show progress bar while executing the job in it's Shown event handler
using (LoginProgressForm progressForm = new LoginProgressForm())
{
progressForm.Shown += async(sender, e) =>
{
LoginProgressForm thisForm = (LoginProgressForm)sender;
try
{
myAuth0ServiceProxy = new Auth0ServiceProxy(new RestClientFactory());
myAuth0ServiceProxy.CredentialsChanged += Auth0ServiceProxy_CredentialsChanged;
Credentials credentials =
await myAuth0ServiceProxy.ExchangeAuthorizationCodeForAccessToken(loginForm.AuthorizationCode);
VerifyCloudAccountStateIsActive(credentials.AccessToken);
myCredentialStorageService.Credentials = credentials;
myCredentialStorageService.Save();
}
catch (Exception ex)
{
// Wrap all other exceptions into AuthenticationException as they are thrown during login process
thisForm.Exception = !(ex is AuthenticationException) ? new AuthenticationException(string.Empty, ex) : ex;
}
finally
{
thisForm.Close();
}
};
progressForm.ShowDialog(parentControl);
if (progressForm.Exception != null)
{
ExceptionDispatchInfo.Capture(progressForm.Exception).Throw();
}
}
return(true);
}
if (!String.IsNullOrWhiteSpace(loginForm.ErrorMessage))
{
throw new AuthenticationException(loginForm.ErrorMessage);
}
return(false);
}
/// <summary>
/// Make use of the stored credentials, if any, to authenticate against the Uluru Cloud services.
/// </summary>
/// <param name="parentControl">The control or form to be set as the owner for the progress dialog</param>
/// <returns>True if authentication was successful, false if no stored credentials or the stored credentials
/// are invalid.</returns>
public bool AuthenticateFromStoredCredentials(Control parentControl)
{
// if plugin first started, we don't require CheckIfCredentialsFileExists
// as if the file is not there, we will treat that scenario as a new user has not logged in;
if (!myIsFirstRun)
{
// if the data file is deleted in-session, invalidate re-authentication
// and letting NVivo handles it
if (!myCredentialStorageService.CheckIfCredentialsFileExists())
{
return(false);
}
}
else
{
myIsFirstRun = false;
}
// if the user has no stored credentials
if (!(myCredentialStorageService.Credentials is Credentials credentials))
{
return(false);
}
// Show progress bar while executing the job in it's Shown event handler
using (LoginProgressForm progressForm = new LoginProgressForm())
{
progressForm.Shown += async(sender, e) =>
{
LoginProgressForm thisForm = (LoginProgressForm)sender;
try
{
// attempt refresh; the call to RefreshAccessToken will update the proxy instance's credential set
myAuth0ServiceProxy = new Auth0ServiceProxy(new RestClientFactory(), credentials);
myAuth0ServiceProxy.CredentialsChanged += Auth0ServiceProxy_CredentialsChanged;
await myAuth0ServiceProxy.RefreshAccessToken();
}
catch (Exception ex)
{
// Pass the exception to the LoginProgressForm
thisForm.Exception = ex;
myAuth0ServiceProxy = null;
}
finally
{
thisForm.Close();
}
};
progressForm.ShowDialog(parentControl);
// The stored credentials are bad, treat every exception at this stage as an AuthenticationException
// and wrap them as the inner exception to rethrow and let NVivo handle error messages
if (progressForm.Exception != null)
{
throw new AuthenticationException("", progressForm.Exception);
}
return(true);
}
}
