/*
* StartAuthenticationAction.java
*
* Version: $Revision: 3705 $
*
* Date: $Date: 2009-04-11 17:02:24 +0000 (Sat, 11 Apr 2009) $
*
* Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
* Institute of Technology. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Hewlett-Packard Company nor the name of the
* Massachusetts Institute of Technology nor the names of their
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package org.dspace.app.xmlui.aspect.eperson;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.acting.AbstractAction;
import org.apache.cocoon.environment.Redirector;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.cocoon.environment.http.HttpEnvironment;
import org.dspace.app.xmlui.utils.AuthenticationUtil;
/**
*
* This action will start the nessary steps to authenticate a user. After the user
* successfully authenticates the user will resume this request with all parameters
* and attributes intact. An optional message can be added that will be displayed
* on the login form. This could be used to provide a reason why the user is being
* queried for a user name and password.
*
* Possible parameter are:
*
* header: An i18n message that will be used as the header for the message.
*
* message: An i18n message tag.
*
* characters: Characters to be displayed, possibly for untranslated error messages
*
*
* <map:action name="StartAuthenticationAction" src="org.dspace.app.xmlui.eperson.StartAuthenticationAction"/>
*
*
* <map:act type="StartAuthenticationAction"/>
*
*
* Typicaly this is used in conjunction with the AuthenticatedSelector as:
*
* <map:select type="AuthenticatedSelector">
* <map:when test="eperson">
* ...
* </map:when>
* <map:otherwise>
* <map:act type="startAuthenticationAction">
* <map:parameter name="message" value="xmlui.Aspect.component.tag"/>
* </map:act>
* </map:otherwise>
* </map:select>
*
* @author Scott Phillips
*/
public class StartAuthenticationAction extends AbstractAction
{
/**
* Redirect the user to the login page.
*/
public Map act(Redirector redirector, SourceResolver resolver,
Map objectModel, String source, Parameters parameters)
throws Exception
{
String header = parameters.getParameter("header",null);
String message = parameters.getParameter("message",null);
String characters = parameters.getParameter("characters",null);
// Interupt this request
AuthenticationUtil.interruptRequest(objectModel,header,message,characters);
final HttpServletRequest httpRequest = (HttpServletRequest) objectModel.get(HttpEnvironment.HTTP_REQUEST_OBJECT);
final HttpServletResponse httpResponse = (HttpServletResponse) objectModel.get(HttpEnvironment.HTTP_RESPONSE_OBJECT);
httpResponse.sendRedirect(httpRequest.getContextPath() + "/login");
return new HashMap();
}
}