/**
* 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.dspace.core.ConfigurationManager;
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 sucessfully authenticating.
*
* @author Sid
* @author Scott Phillips
*/
public class PasswordLogin extends AbstractDSpaceTransformer implements CacheableProcessingComponent
{
/**language strings */
public static final Message T_title =
message("xmlui.EPerson.PasswordLogin.title");
public static final Message T_dspace_home =
message("xmlui.general.dspace_home");
public static final Message T_trail =
message("xmlui.EPerson.PasswordLogin.trail");
public static final Message T_head1 =
message("xmlui.EPerson.PasswordLogin.head1");
public static final Message T_email_address =
message("xmlui.EPerson.PasswordLogin.email_address");
public static final Message T_error_bad_login =
message("xmlui.EPerson.PasswordLogin.error_bad_login");
public static final Message T_password =
message("xmlui.EPerson.PasswordLogin.password");
public static final Message T_forgot_link =
message("xmlui.EPerson.PasswordLogin.forgot_link");
public static final Message T_submit =
message("xmlui.EPerson.PasswordLogin.submit");
public static final Message T_head2 =
message("xmlui.EPerson.PasswordLogin.head2");
public static final Message T_para1 =
message("xmlui.EPerson.PasswordLogin.para1");
public static final Message T_register_link =
message("xmlui.EPerson.PasswordLogin.register_link");
/**
* 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_email = request.getParameter("login_email");
// 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_email == null)
{
// cacheable
return "1";
}
else
{
// Uncachable
return "0";
}
}
/**
* Generate the cache validity object.
*/
public SourceValidity getValidity()
{
Request request = ObjectModelHelper.getRequest(objectModel);
String previous_email = request.getParameter("login_email");
// 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_email == 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 previousEmail = request.getParameter("login_email");
// 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
+ "/password-login", Division.METHOD_POST, "primary");
login.setHead(T_head1);
List list = login.addList("password-login",List.TYPE_FORM);
Text email = list.addItem().addText("login_email");
email.setAutofocus("autofocus");
email.setRequired();
email.setLabel(T_email_address);
if (previousEmail != null)
{
email.setValue(previousEmail);
email.addError(T_error_bad_login);
}
Item item = list.addItem();
Password password = item.addPassword("login_password");
password.setRequired();
password.setLabel(T_password);
item.addXref(contextPath + "/forgot", T_forgot_link);
list.addLabel();
Item submit = list.addItem("login-in", null);
submit.addButton("submit").setValue(T_submit);
if (ConfigurationManager.getBooleanProperty("xmlui.user.registration", true))
{
Division register = login.addDivision("register");
register.setHead(T_head2);
register.addPara(T_para1);
register.addPara().addXref(contextPath + "/register",T_register_link);
}
}
}