/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.xmlui.aspect.eperson;
import java.io.Serializable;
import java.sql.SQLException;
import javax.servlet.http.HttpSession;
import org.apache.cocoon.caching.CacheableProcessingComponent;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.excalibur.source.SourceValidity;
import org.apache.excalibur.source.impl.validity.NOPValidity;
import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
import org.dspace.app.xmlui.utils.AuthenticationUtil;
import org.dspace.app.xmlui.wing.Message;
import org.dspace.app.xmlui.wing.WingException;
import org.dspace.app.xmlui.wing.element.Body;
import org.dspace.app.xmlui.wing.element.Division;
import org.dspace.app.xmlui.wing.element.Item;
import org.dspace.app.xmlui.wing.element.List;
import org.dspace.app.xmlui.wing.element.PageMeta;
import org.dspace.app.xmlui.wing.element.Password;
import org.dspace.app.xmlui.wing.element.Text;
import org.xml.sax.SAXException;
/**
* Query the user for their authentication credentials.
*
* The parameter "return-url" may be passed to give a location where to redirect
* the user to after successfully authenticating.
*
* @author Jay Paz
*/
public class LDAPLogin extends AbstractDSpaceTransformer implements
CacheableProcessingComponent {
/** language strings */
public static final Message T_title = message("xmlui.EPerson.LDAPLogin.title");
public static final Message T_dspace_home = message("xmlui.general.dspace_home");
public static final Message T_trail = message("xmlui.EPerson.LDAPLogin.trail");
public static final Message T_head1 = message("xmlui.EPerson.LDAPLogin.head1");
public static final Message T_userName = message("xmlui.EPerson.LDAPLogin.username");
public static final Message T_error_bad_login = message("xmlui.EPerson.LDAPLogin.error_bad_login");
public static final Message T_password = message("xmlui.EPerson.LDAPLogin.password");
public static final Message T_submit = message("xmlui.EPerson.LDAPLogin.submit");
/**
* Generate the unique caching key. This key must be unique inside the space
* of this component.
*/
public Serializable getKey() {
Request request = ObjectModelHelper.getRequest(objectModel);
String previous_username = request.getParameter("username");
// Get any message parameters
HttpSession session = request.getSession();
String header = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_HEADER);
String message = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_MESSAGE);
String characters = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_CHARACTERS);
// If there is a message or previous email attempt then the page is not
// cachable
if (header == null && message == null && characters == null
&& previous_username == null)
{
// cacheable
return "1";
}
else
{
// Uncachable
return "0";
}
}
/**
* Generate the cache validity object.
*/
public SourceValidity getValidity() {
Request request = ObjectModelHelper.getRequest(objectModel);
String previous_username = request.getParameter("username");
// Get any message parameters
HttpSession session = request.getSession();
String header = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_HEADER);
String message = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_MESSAGE);
String characters = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_CHARACTERS);
// If there is a message or previous email attempt then the page is not
// cachable
if (header == null && message == null && characters == null
&& previous_username == null)
{
// Always valid
return NOPValidity.SHARED_INSTANCE;
}
else
{
// invalid
return null;
}
}
/**
* Set the page title and trail.
*/
public void addPageMeta(PageMeta pageMeta) throws WingException {
pageMeta.addMetadata("title").addContent(T_title);
pageMeta.addTrailLink(contextPath + "/", T_dspace_home);
pageMeta.addTrail().addContent(T_trail);
}
/**
* Display the login form.
*/
public void addBody(Body body) throws SQLException, SAXException,
WingException {
// Check if the user has previously attempted to login.
Request request = ObjectModelHelper.getRequest(objectModel);
HttpSession session = request.getSession();
String previousUserName = request.getParameter("username");
// Get any message parameters
String header = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_HEADER);
String message = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_MESSAGE);
String characters = (String) session
.getAttribute(AuthenticationUtil.REQUEST_INTERRUPTED_CHARACTERS);
if (header != null || message != null || characters != null) {
Division reason = body.addDivision("login-reason");
if (header != null)
{
reason.setHead(message(header));
}
else
{
// Always have a head.
reason.setHead("Authentication Required");
}
if (message != null)
{
reason.addPara(message(message));
}
if (characters != null)
{
reason.addPara(characters);
}
}
Division login = body.addInteractiveDivision("login", contextPath
+ "/ldap-login", Division.METHOD_POST, "primary");
login.setHead(T_head1);
List list = login.addList("ldap-login", List.TYPE_FORM);
Text email = list.addItem().addText("username");
email.setRequired();
email.setAutofocus("autofocus");
email.setLabel(T_userName);
if (previousUserName != null) {
email.setValue(previousUserName);
email.addError(T_error_bad_login);
}
Item item = list.addItem();
Password password = item.addPassword("ldap_password");
password.setRequired();
password.setLabel(T_password);
list.addLabel();
Item submit = list.addItem("login-in", null);
submit.addButton("submit").setValue(T_submit);
}
}