LoginDialog.java

/*******************************************************************************
 * Copyright (c) 2006-2007, Cloudsmith Inc.
 * The code, documentation and other materials contained herein have been
 * licensed under the Eclipse Public License - v 1.0 by the copyright holder
 * listed above, as the Initial Contributor under such license. The text of
 * such license is available at www.eclipse.org.
 ******************************************************************************/

package org.eclipse.buckminster.jnlp.wizard;

import static org.eclipse.buckminster.jnlp.MaterializationConstants.ERROR_CODE_NO_PUBLISHER_EXCEPTION;

import org.eclipse.buckminster.jnlp.JNLPException;
import org.eclipse.buckminster.jnlp.MaterializationUtils;
import org.eclipse.buckminster.jnlp.Messages;
import org.eclipse.buckminster.jnlp.distroprovider.IRemoteDistroProvider;
import org.eclipse.buckminster.jnlp.ui.general.wizard.AdvancedTitleAreaDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

/**
 * @author kaja
 * 
 */
public class LoginDialog extends AdvancedTitleAreaDialog
{
	private ILoginHandler m_loginHandler;

	private LoginPanel m_login;

	public LoginDialog(Shell parentShell, ILoginHandler loginHandler, Image windowImage, String windowTitle,
			Image wizardImage, String serviceProvider, String helpURL)
	{
		super(parentShell, windowImage, windowTitle, wizardImage, Messages.login, NLS.bind(
				Messages.publishing_requires_login_to_0, serviceProvider), helpURL);
		m_loginHandler = loginHandler;
	}

	@Override
	protected void buttonPressed(int buttonId)
	{
		if(buttonId == IDialogConstants.OK_ID)
		{
			IRemoteDistroProvider authenticator;

			try
			{
				authenticator = m_loginHandler.getDistroProvider().createDuplicate(false);

				if(authenticator == null)
				{
					throw new JNLPException(Messages.publisher_is_not_available, ERROR_CODE_NO_PUBLISHER_EXCEPTION);
				}

				String userName = null;
				String password = null;

				if(m_login.isCurrentUser())
				{
					int result = authenticator.relogin(m_loginHandler.getAuthenticatorLoginKey());

					if(result == IRemoteDistroProvider.LOGIN_UNKNOW_KEY)
						m_loginHandler.removeAuthenticatorLoginKey();

					if(result != IRemoteDistroProvider.LOGIN_OK)
					{
						throw new JNLPException(Messages.cannot_login_try_to_login_using_USERNAME_and_PASSWORD, null);
					}
				}
				else
				{
					userName = m_login.getLogin();
					password = m_login.getPassword();

					if(!m_login.isAlreadyUser())
					{
						int result = authenticator.register(userName, password, m_login.getEmail());

						MaterializationUtils.checkRegistrationResponse(result);
					}

					if(authenticator.relogin(userName, password) != IRemoteDistroProvider.LOGIN_OK)
					{
						throw new JNLPException(Messages.cannot_login_check_username_and_password_and_try_again, null);
					}
				}

				if(!authenticator.isLoggedIn())
				{
					throw new JNLPException(Messages.problem_with_the_remote_server_try_to_login_later, null);
				}

				m_loginHandler.getDistroProvider().releaseConnection();
				m_loginHandler.setDistroProvider(authenticator);
				m_loginHandler.setAuthenticatorUserName(userName);
				m_loginHandler.setAuthenticatorPassword(password);
			}
			catch(Throwable e)
			{
				setErrorMessage(e.getMessage());
				return;
			}
		}

		setReturnCode(buttonId);
		close();
	}

	@Override
	protected Control createDialogArea(Composite parent)
	{
		m_login = new LoginPanel(m_loginHandler.getAuthenticatorLoginKeyUserName(), m_loginHandler
				.getAuthenticatorUserName(), m_loginHandler.getAuthenticatorPassword());

		ModifyListener fieldsListener = new ModifyListener()
		{
			public void modifyText(ModifyEvent e)
			{
				enableDisableOkButton();
			}
		};

		SelectionListener fieldsSwitchListener = new SelectionAdapter()
		{
			@Override
			public void widgetSelected(SelectionEvent e)
			{
				enableDisableOkButton();
			}
		};

		Composite composite = new Composite((Composite)super.createDialogArea(parent), SWT.NONE);
		composite.setLayout(new GridLayout(1, false));
		composite.setLayoutData(new GridData(GridData.FILL_BOTH));

		Control control = m_login.createControl(composite, fieldsListener, fieldsSwitchListener);

		m_login.setCurrentUserVisible(m_loginHandler.getAuthenticatorLoginKey() != null);

		return control;
	}

	@Override
	protected void enableDisableOkButton()
	{
		boolean enable = getCompleteLoginFields();
		getButton(IDialogConstants.OK_ID).setEnabled(enable);
	}

	private boolean getCompleteLoginFields()
	{
		String errorMsg = m_login.checkCompleteLoginFields();

		setErrorMessage(errorMsg);
		return errorMsg == null;
	}
}