/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.security.authorization.modules.web;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URI;
import java.security.Principal;
import java.util.Collection;
import java.util.Enumeration;
import javax.servlet.http.HttpServletRequest;
import org.jboss.security.PicketBoxLogger;
import org.jboss.security.PicketBoxMessages;
import org.jboss.security.authorization.util.JBossXACMLUtil;
import org.jboss.security.identity.Role;
import org.jboss.security.identity.RoleGroup;
import org.jboss.security.xacml.core.model.context.ActionType;
import org.jboss.security.xacml.core.model.context.AttributeType;
import org.jboss.security.xacml.core.model.context.EnvironmentType;
import org.jboss.security.xacml.core.model.context.RequestType;
import org.jboss.security.xacml.core.model.context.ResourceType;
import org.jboss.security.xacml.core.model.context.SubjectType;
import org.jboss.security.xacml.factories.RequestAttributeFactory;
import org.jboss.security.xacml.factories.RequestResponseContextFactory;
import org.jboss.security.xacml.interfaces.RequestContext;
import org.jboss.security.xacml.interfaces.XACMLConstants;
//$Id: WebXACMLUtil.java 46543 2006-07-27 20:22:05Z asaldhana $
/**
* Utility class for creating XACML Requests
* @author <a href="mailto:Anil.Saldhana@jboss.org">Anil Saldhana</a>
* @since Jun 21, 2006
* @version $Revision: 46543 $
*/
public class WebXACMLUtil extends JBossXACMLUtil
{
@SuppressWarnings("unchecked")
public RequestContext createXACMLRequest(HttpServletRequest request,
RoleGroup callerRoles) throws Exception
{
if(request == null)
throw PicketBoxMessages.MESSAGES.invalidNullArgument("request");
if(callerRoles == null)
throw PicketBoxMessages.MESSAGES.invalidNullArgument("callerRoles");
String httpMethod = request.getMethod();
String action = "GET".equals(httpMethod) ? "read" : "write";
//Non-standard uri
String actionURIBase = "urn:oasis:names:tc:xacml:2.0:request-param:attribute:";
Principal principal = request.getUserPrincipal();
RequestContext requestCtx = RequestResponseContextFactory.createRequestCtx();
//Create a subject type
SubjectType subject = new SubjectType();
subject.getAttribute().add(
RequestAttributeFactory.createStringAttributeType(
XACMLConstants.ATTRIBUTEID_SUBJECT_ID,
"jboss.org",
principal.getName()));
Collection<Role> rolesList = callerRoles.getRoles();
if(rolesList != null)
{
for(Role role:rolesList)
{
String roleName = role.getRoleName();
AttributeType attSubjectID = RequestAttributeFactory.createStringAttributeType(
XACMLConstants.ATTRIBUTEID_ROLE, "jboss.org", roleName);
subject.getAttribute().add(attSubjectID);
}
}
//Create a resource type
ResourceType resourceType = new ResourceType();
resourceType.getAttribute().add(
RequestAttributeFactory.createAnyURIAttributeType(
XACMLConstants.ATTRIBUTEID_RESOURCE_ID,
null,
new URI(request.getRequestURI())));
//Create an action type
ActionType actionType = new ActionType();
actionType.getAttribute().add(
RequestAttributeFactory.createStringAttributeType(
XACMLConstants.ATTRIBUTEID_ACTION_ID,
"jboss.org",
action));
Enumeration<String> enumer = request.getParameterNames();
while(enumer.hasMoreElements())
{
String paramName = enumer.nextElement();
String paramValue = request.getParameter(paramName);
URI actionUri = new URI(actionURIBase + paramName);
actionType.getAttribute().add(
RequestAttributeFactory.createStringAttributeType(
actionUri.toASCIIString(),
"jboss.org",
paramValue));
}
//Create an Environment Type (Optional)
EnvironmentType environmentType = new EnvironmentType();
environmentType.getAttribute().add( RequestAttributeFactory.createDateTimeAttributeType(
XACMLConstants.ATTRIBUTEID_CURRENT_TIME, null));
//Create a Request Type
RequestType requestType = new RequestType();
requestType.getSubject().add(subject);
requestType.getResource().add(resourceType);
requestType.setAction(actionType);
requestType.setEnvironment(environmentType);
requestCtx.setRequest(requestType);
if(PicketBoxLogger.LOGGER.isDebugEnabled())
{
ByteArrayOutputStream baos = null;
try
{
baos = new ByteArrayOutputStream();
requestCtx.marshall(baos);
PicketBoxLogger.LOGGER.debug(new String(baos.toByteArray()));
}
catch(IOException e)
{
}
finally
{
safeClose(baos);
}
}
return requestCtx;
}
private void safeClose(OutputStream os)
{
try
{
if(os != null)
{
os.close();
}
}
catch(Exception e)
{}
}
}