package org.appfuse.webapp.pages;
import de.agilecoders.wicket.webjars.request.resource.WebjarsJavaScriptResourceReference;
import org.apache.wicket.authroles.authentication.AuthenticatedWebSession;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.head.OnLoadHeaderItem;
import org.apache.wicket.markup.html.*;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.*;
import org.apache.wicket.markup.html.form.validation.FormComponentFeedbackBorder;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.StringResourceModel;
import org.apache.wicket.request.Url;
import org.apache.wicket.request.cycle.RequestCycle;
import org.appfuse.Constants;
import org.appfuse.webapp.AbstractWebPage;
import org.appfuse.webapp.pages.components.PlaceholderBehavior;
import org.appfuse.webapp.pages.components.RequiredBehavior;
import org.wicketstuff.annotation.mount.MountPath;
import java.util.Map;
/**
* A login page.
*
* @author Marcin Zajączkowski, 2010-09-02
*/
@MountPath("login")
public class Login extends AbstractWebPage {
private TextField<String> usernameField;
private TextField<String> passwordField;
private CheckBox rememberMeCheckBox;
@Override
protected void onInitialize() {
super.onInitialize();
add(createPageTitleTag("login.title"));
//TODO: MZA: Add login hint with: http://code.google.com/p/visural-wicket/
Form<Void> loginForm = createLoginForm();
add(loginForm);
loginForm.add(createFeedbackPanel());
loginForm.add(createPageHeading("login.heading"));
createAndAddToLoginFormUsernameAndPasswordFields(loginForm);
loginForm.add(createRememberMeGroup());
add(createSignupLabel());
}
private void createAndAddToLoginFormUsernameAndPasswordFields(Form<Void> loginForm) {
//Border to add red asterisk on error, FormComponentFeedbackIndicator could be used for something more.
//TODO: MZA: Take a look at FormComponentFeedbackBorder markup (its wicket:body) as a hint for required label
//TODO: MZA: How to change a background color of an input with validation error?
loginForm.add(new FormComponentFeedbackBorder("border").add(
(usernameField = new RequiredTextField<String>("username", Model.of("")))));
usernameField.add(new PlaceholderBehavior(getString("label.username")));
usernameField.add(new RequiredBehavior());
loginForm.add(passwordField = new PasswordTextField("password", Model.of("")));
passwordField.add(new PlaceholderBehavior(getString("label.password")));
passwordField.add(new RequiredBehavior());
}
private Form<Void> createLoginForm() {
return new Form<Void>("loginForm") {
@Override
protected void onSubmit() {
authenticateUser();
}
};
}
//TODO: MZA: Move to if needed somewhere else
@SuppressWarnings("unchecked")
private Object getValueForKeyFromConfigOrReturnNullIfNoConfig(String configProperty) {
Map<String, Object> config = (Map<String, Object>)getServletContext().getAttribute(Constants.CONFIG);
if (config == null) {
log.warn("{} context attribute is null.", Constants.CONFIG);
return null;
} else {
return config.get(configProperty);
}
}
@Override
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
addLoginJavaScriptToResponse(response);
addInitDataOnLoadJavaScriptToResponse(response);
}
private void addLoginJavaScriptToResponse(IHeaderResponse response) {
response.render(JavaScriptHeaderItem.forReference(
new WebjarsJavaScriptResourceReference("jquery-cookie/current/jquery.cookie.js")));
response.render(JavaScriptHeaderItem.forUrl("scripts/login.js"));
}
private void addInitDataOnLoadJavaScriptToResponse(IHeaderResponse response) {
response.render(OnLoadHeaderItem.forScript("initDataOnLoad()"));
}
private WebMarkupContainer createRememberMeGroup() {
WebMarkupContainer rememberMeGroup = new WebMarkupContainer("rememberMeGroup");
rememberMeGroup.add(createRememberMeCheckboxInsideLabel());
boolean isRememberMeEnabled = isRememberMeEnabled();
rememberMeGroup.setVisible(isRememberMeEnabled);
//TODO: MZA: How does RememberMe work? I don't see any cookie.
return rememberMeGroup;
}
private FormComponentLabel createRememberMeCheckboxInsideLabel() {
//TODO: MZA: A trick to have an input component inside a label - pack into a new component if needed somewhere else
// https://cwiki.apache.org/WICKET/form-control-labels.html
//TODO: MZA: How to keep fields? As class property? Local variable? just assign to a parent?
rememberMeCheckBox = new CheckBox("rememberMe", new Model<Boolean>(Boolean.FALSE));
FormComponentLabel rememberMeLabel = new FormComponentLabel("rememberMeLabel", rememberMeCheckBox);
Label rememberMeLabelSpan = new Label("rememberMeLabelSpan", getString("login.rememberMe"));
rememberMeLabelSpan.setRenderBodyOnly(true);
rememberMeLabel.add(rememberMeLabelSpan);
rememberMeLabel.add(rememberMeCheckBox);
return rememberMeLabel;
}
private boolean isRememberMeEnabled() {
Boolean isRememberMeEnabled = (Boolean)getValueForKeyFromConfigOrReturnNullIfNoConfig("rememberMeEnabled");
return isRememberMeEnabled != null ? isRememberMeEnabled : false;
}
private Label createSignupLabel() {
String absoluteSignupLink = RequestCycle.get().getUrlRenderer().renderFullUrl(
Url.parse(urlFor(Signup.class, null).toString()));
//TODO: MZA: There should be some better way to use URL inside a label (if not, make it an util method)
String signupLabelText = new StringResourceModel("login.signup", this, null, new Object[] {
absoluteSignupLink}).getString();
Label signupLabel = new Label("signupLabel", signupLabelText);
signupLabel.setEscapeModelStrings(false);
return signupLabel;
}
private void authenticateUser() {
AuthenticatedWebSession session = AuthenticatedWebSession.get();
if (session.signIn(usernameField.getModelObject(), passwordField.getModelObject())) {
setDefaultResponsePageIfNecessary();
} else {
error(getString("errors.password.mismatch"));
}
}
private void setDefaultResponsePageIfNecessary() {
continueToOriginalDestination();
setResponsePage(getApplication().getHomePage());
}
}