SecurityAccessView.java

package com.thingtrack.konekti.view.web.workbench;

import java.util.Date;
import java.util.List;

import org.vaadin.addon.formbinder.ViewBoundForm;

import com.thingtrack.konekti.domain.Application;
import com.thingtrack.konekti.domain.User;
import com.thingtrack.konekti.service.api.UserService;
import com.thingtrack.konekti.service.security.SecurityService;
import com.thingtrack.konekti.view.addon.ui.AbstractView;
import com.thingtrack.konekti.view.addon.ui.SliderView;
import com.thingtrack.konekti.view.kernel.ui.layout.IPanelView;
import com.thingtrack.konekti.view.kernel.ui.layout.IToolbar;
import com.thingtrack.konekti.view.security.LoginViewForm;
import com.vaadin.data.util.BeanItem;
import com.vaadin.event.ShortcutAction.KeyCode;
import com.vaadin.terminal.UserError;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;

@SuppressWarnings("serial")
public class SecurityAccessView extends AbstractView {

	private SecurityService securityService;
	private UserService userService;
	
	private SliderView sliderView;
	
	private ViewBoundForm viewBoundForm;
	private Window loginWindow;
	private LoginViewForm loginViewForm;
	private VerticalLayout mainLayout;
	
	private User grantedUser; 

	private Button loginBtn;
	private VerticalLayout content;
	
	private String version;
	private String logo;
	private boolean demo;
	
	private static final String DEMO_USERNAME = "demo";
	private static final String DEMO_PASSWORD = "demo";
	
	private static final String APP_NAME = "konekti.view.web.workbench";
	
	public User getGrantedUser() {
		return grantedUser;
	}

	public SecurityAccessView(SecurityService securityService, UserService userService,
			SliderView sliderView, String version, String logo, boolean demo) {
		
		this.securityService = securityService;
		this.userService = userService;
		this.sliderView = sliderView;
		this.version = version;
		this.logo = logo;
		this.demo = demo;
		
		mainLayout = new VerticalLayout();
		setCompositionRoot(mainLayout);
		
	}

	@Override
	public void attach() {

		super.attach();

		loginWindow = new Window();
		
		// create view bound form
		VerticalLayout content = buildMainLayout();
		content.setMargin(false);
		loginWindow.setContent(content);
		loginWindow.center();
		loginWindow.setCaption(getI18N().getMessage("com.thingtrack.konekti.view.web.workbench.SecurityAccessView.loginWindow.caption"));		
		loginWindow.setModal(true);
		loginWindow.setResizable(false);
		loginWindow.setClosable(false);

		User loginUser = new User();
		BeanItem<User> userBean = new BeanItem<User>(loginUser);
		viewBoundForm.setItemDataSource(userBean);
		
		getWindow().addWindow(loginWindow);
	}

	private VerticalLayout buildMainLayout() {

		// common part: create layout
		VerticalLayout mainLayout = new VerticalLayout();
		mainLayout.setImmediate(false);
		mainLayout.setSizeUndefined();
		mainLayout.setMargin(false);

		viewBoundForm = buildLoginLayout();

		mainLayout.addComponent(viewBoundForm);
		mainLayout.setExpandRatio(viewBoundForm, 1.0f);

		return mainLayout;

	}

	private ViewBoundForm buildLoginLayout() {

		viewBoundForm = new ViewBoundForm();
		viewBoundForm.setImmediate(false);
		viewBoundForm.setWidth("100%");
		viewBoundForm.setHeight("100%");
		viewBoundForm.setWriteThrough(false);
		viewBoundForm.setInvalidCommitted(false);

		loginViewForm = new LoginViewForm(version, logo, demo);
		viewBoundForm.setContent(loginViewForm);

		viewBoundForm.getFooter().addComponent(buildFooterWindow());
		viewBoundForm.getFooter().addStyleName("windowdialog-footer");

		return viewBoundForm;
	}

	private HorizontalLayout buildFooterWindow() {

		HorizontalLayout footerWindow = new HorizontalLayout();
		footerWindow.setImmediate(false);
		footerWindow.setWidth(loginViewForm.getWidth(), UNITS_PIXELS);
		footerWindow.setHeight("-1px");
		footerWindow.setMargin(true);
		footerWindow.setSpacing(true);

		loginBtn = new Button("Entrar", this, "loginBtn_Click");
		loginBtn.setCaption(getI18N().getMessage("com.thingtrack.konekti.view.web.workbench.SecurityAccessView.loginBtn.caption"));
		
		loginBtn.setImmediate(true);
		loginBtn.setWidth("-1px");
		loginBtn.setHeight("-1px");
		loginBtn.setClickShortcut(KeyCode.ENTER);
		loginBtn.addStyleName("primary");
		footerWindow.addComponent(loginBtn);
		footerWindow.setComponentAlignment(loginBtn, new Alignment(34));

		return footerWindow;
	}

	/**
	 * Login result button
	 */
	public void loginBtn_Click(Button.ClickEvent event) {
		String userName ;
		String password;
		
		try{
			viewBoundForm.commit();
			BeanItem<User> userBean = (BeanItem<User>) viewBoundForm.getItemDataSource();
			
			if (demo) {
				userName = DEMO_USERNAME;
				password = DEMO_PASSWORD;
			}
			else {
				userName = userBean.getBean().getUsername();
				password = userBean.getBean().getPassword();
			}
			
			// get garnted user
			grantedUser = securityService.authenticate(userName, password);
			
			// get Konekti user and check if is active
			User user = userService.getByUsername(grantedUser.getUsername());
			
			if (!user.isActive()) {
				viewBoundForm.setComponentError(new UserError(getI18N().getMessage("com.thingtrack.konekti.view.security.LoginViewForm.warning.isActive")));
				
				return;
				
			}
				
			// check if the user have access to this application
			if (!access(user)) {
				viewBoundForm.setComponentError(new UserError(getI18N().getMessage("com.thingtrack.konekti.view.security.LoginViewForm.warning.notAccess")));
				
				return;
			}
			
			// check if the user have expiration user account
			if (!expiration(user)) {
				viewBoundForm.setComponentError(new UserError(getI18N().getMessage("com.thingtrack.konekti.view.security.LoginViewForm.warning.expirationDate")));
				
				return;
			}
						
			getWindow().removeWindow(loginWindow);
						
			sliderView.rollNext();
			
		} catch(Exception e){			
			viewBoundForm.setComponentError(new UserError(getI18N().getMessage("com.thingtrack.konekti.view.security.LoginViewForm.warning.errorCredentials")));
			
		}

	}

	private boolean access(User user) {
		for (Application app : user.getApplications()) {
			if (app.getName().equals(APP_NAME))
				return true;
		}
			
		return false;
	}
	
	private boolean expiration(User user) {
		if (user.getExpirationDate() != null && 
			user.getExpirationDate().compareTo(new Date()) < 0)
			return false;
			
		return true;
	}
	
	@Override
	public void addPanelView(IPanelView arg0) {
		// TODO Auto-generated method stub

	}

	@Override
	public void addToolbar(IToolbar arg0) {
		// TODO Auto-generated method stub

	}

	@Override
	public List<IPanelView> getPanelView() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public List<IToolbar> getToolbars() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void removeAllPanelView() {
		// TODO Auto-generated method stub

	}

	@Override
	public void removeAllToolbar() {
		// TODO Auto-generated method stub

	}

	@Override
	public void removePanelView(IPanelView arg0) {
		// TODO Auto-generated method stub

	}

	@Override
	public void removeToolbar(IToolbar arg0) {
		// TODO Auto-generated method stub

	}

	@Override
	protected void updateLabels() {
		
	}

}