LoginPanel.java

package com.rectang.xsm.panels;

import com.rectang.xsm.XSM;
import com.rectang.xsm.pages.cms.View;
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.markup.html.form.*;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.Session;

import com.twmacinta.util.MD5;
import com.rectang.xsm.UserData;
import com.rectang.xsm.wicket.LangDropDownChoice;
import com.rectang.xsm.pages.XSMSession;
import com.rectang.xsm.pages.Dashboard;
import com.rectang.xsm.site.Site;
import org.apache.wicket.util.convert.ConversionException;

import java.util.Locale;

/**
 * Panel for handling user logins.
 * All validation (except the existance of a site and the authentication is
 * done by wicket.
 *
 * @author Andrew Williams
 * @version $Id: LoginPanel.java 827 2011-09-25 12:18:02Z andy $
 * @since 2.0
 */
public class LoginPanel
        extends Panel
{

    private XSMSession session;
    private boolean dedicated = XSM.getConfig().isDedicated();

    public LoginPanel( String id, XSMSession session )
    {
        this( id, null, session );
    }

    public LoginPanel( String id, String sitename, XSMSession session )
    {
        super( id );
        this.session = session;

        add( new LoginForm( "login", sitename ) );
    }

    class LoginForm
            extends Form
    {
        String username, password, sitename, lang;

        public LoginForm( String id, String sitename )
        {
            super( id );
            if ( sitename != null )
            {
                this.sitename = sitename;
            }
            if ( this.sitename == null && session.getSite() != null )
            {
                this.sitename = session.getSite().getId();
            }

            add( new TextField( "username", new PropertyModel( this, "username" ) )
                    .setRequired( true ) );
            add( new PasswordTextField( "password", new PropertyModel( this, "password" ) )
                    .setRequired( true ) );
            add( new TextField( "sitename", new PropertyModel( this, "sitename" ) )
            {
                protected Object convertValue( String[] value )
                        throws ConversionException
                {
                    Object site = super.convertValue( value );

                    // set the site based on the user input
                    setSitename( site.toString() );
                    ((XSMSession) getSession()).setRequestedSite( site.toString() );
                    return site;
                }
            }.setRequired( !dedicated ).setVisible( !dedicated ) );
//      add(new LangDropDownChoice("lang", new PropertyModel(this, "lang"), session, true));

            add( new Button( "login", new ResourceModel( "login.button" ) ) );
        }

        public void onSubmit()
        {
            if ( !com.rectang.xsm.site.Site.getSiteList().contains( getSitename() ) )
            {
                getSession().warn( "Error logging in - site \"" + getSitename()
                        + "\" is not recognised" );
                return;
            }

            UserData userData = new UserData( getUsername(), new Site( getSitename() ) );
            if ( userData.getUsername() == null )
            {
                getSession().warn( "Error logging in - username or password incorrect" );
                return;
            }

            try
            {
                MD5 md5 = new MD5( getPassword() );
                String passEnc = md5.asHex();
                if ( passEnc.equals( userData.getPassword() ) )
                {
                    session.setUser( userData );
                    if ( userData.getLocale() != null )
                    {
                        Session.get().setLocale( new Locale( userData.getLocale() ) );
                    }
          /* mark this as the last login time */
                    userData.save();

                    getSession().info( "You have logged in to site " + getSitename()
                            + " as " + userData.getUsername() );

          /* if this fails we fall to the login page content */
                    if ( !continueToOriginalDestination() )
                    {
                        PageParameters params = new PageParameters();
                        params.add( "page", userData.getSite().getDefault() );
                        setResponsePage( View.class, params );
                    }
                }
                else
                {
                    getSession().warn( "Error logging in - username or password incorrect" );
                }
            }
            catch ( Exception e )
            {
                e.printStackTrace();
                getSession().error( "Error reading user file" );
            }
        }

        public String getUsername()
        {
            return username;
        }

        public void setUsername( String username )
        {
            this.username = username;
        }

        public String getPassword()
        {
            return password;
        }

        public void setPassword( String password )
        {
            this.password = password;
        }

        public String getSitename()
        {
            return sitename;
        }

        public void setSitename( String sitename )
        {
            this.sitename = sitename;
        }

        public String getLang()
        {
            return lang;
        }

        public void setLang( String lang )
        {
            this.lang = lang;
        }
    }
}