105 lines
3.4 KiB
Java
Executable File
105 lines
3.4 KiB
Java
Executable File
/*
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* Copyright (C) 2001-2004 Red Hat Inc. All Rights Reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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package com.arsdigita.cms.dispatcher;
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import com.arsdigita.dispatcher.RequestContext;
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import com.arsdigita.util.Assert;
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import org.apache.shiro.authz.AuthorizationException;
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import org.libreccm.cdi.utils.CdiUtil;
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import org.libreccm.security.PermissionChecker;
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import org.librecms.CmsConstants;
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import org.librecms.contentsection.ContentItem;
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import org.librecms.contentsection.ContentSection;
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import java.io.IOException;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* An interface for resources that can be served.
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*
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* @author Michael Pih (pihman@arsdigita.com)
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* @version $Revision$ $DateTime: 2004/08/17 23:15:09 $
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* @version $Id$
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*
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*/
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public abstract class ResourceHandlerImpl implements ResourceHandler {
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/**
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* This method is called by the {@link com.arsdigita.dispatcher.Dispatcher}
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* that initializes this page.
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*/
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public void init() throws ServletException {
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// Do nothing.
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}
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/**
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* Fetch the request-local content section.
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*
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* @param request The HTTP request
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*
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* @return The current content section
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*/
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public ContentSection getContentSection(HttpServletRequest request) {
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// resets all content sections associations
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ContentSection section = CMSDispatcher.getContentSection(request);
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Assert.exists(section);
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return section;
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}
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/**
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* Fetch the request-local content item.
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*
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* @param request The HTTP request
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*
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* @return The current content item
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*/
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public ContentItem getContentItem(HttpServletRequest request) {
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// resets all content item associations
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return CMSDispatcher.getContentItem(request);
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}
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public void checkUserAccess(HttpServletRequest request,
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HttpServletResponse response,
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RequestContext actx,
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ContentItem item) {
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if (!CdiUtil.createCdiUtil().findBean(PermissionChecker.class)
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.isPermitted(CmsConstants.PRIVILEGE_ITEMS_VIEW_PUBLISHED, item)) {
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throw new AuthorizationException(
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"cms.dispatcher.no_permission_to_access_resource");
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}
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}
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/**
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* Services this resource.
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*
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* @param request The servlet request object
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* @param response the servlet response object
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* @param actx The request context
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*/
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public abstract void dispatch(HttpServletRequest request,
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HttpServletResponse response,
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RequestContext actx)
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throws IOException, ServletException;
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}
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