1 /**
2 * This file Copyright (c) 2003-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.cms.security;
35
36 import info.magnolia.context.MgnlContext;
37
38 import java.io.IOException;
39
40 import javax.jcr.Session;
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
43
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
46
47
48 /**
49 * This Filter protects URI as defined by ROLE(s)/GROUP(s) ACL.
50 *
51 * @version $Id$
52 */
53 public class URISecurityFilter extends BaseSecurityFilter {
54
55 private static final Logger log = LoggerFactory.getLogger(URISecurityFilter.class);
56
57 public static final String URI_REPOSITORY = "uri";
58
59 public static final String URI_WORKSPACE = "default";
60
61 /**
62 * Checks access from Listener / Authenticator / AccessLock.
63 * @param request HttpServletRequest as received by the service method
64 * @param response HttpServletResponse as received by the service method
65 * @return boolean <code>true</code> if access to the resource is allowed
66 * @throws IOException can be thrown when the servlet is unable to write to the response stream
67 */
68 @Override
69 public boolean isAllowed(HttpServletRequest request, HttpServletResponse response) throws IOException {
70 // todo MAGNOLIA-1617 move this to separate filter
71 final IPSecurityManager ipSecurityManager = IPSecurityManager.Factory.getInstance();
72 if (!ipSecurityManager.isAllowed(request)) {
73 response.setStatus(HttpServletResponse.SC_FORBIDDEN);
74 return false;
75 }
76
77 if (Lock.isSystemLocked()) {
78 // todo - move Lock checks to separate filter
79 response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
80 return false;
81 }
82
83 final boolean authorized = isAuthorized(request);
84 if (!authorized) {
85 final int statusCode = SecurityUtil.isAnonymous() ? HttpServletResponse.SC_UNAUTHORIZED : HttpServletResponse.SC_FORBIDDEN;
86 response.setStatus(statusCode);
87 }
88 return authorized;
89 }
90
91 /**
92 * Validates user permissions on URI.
93 *
94 * @deprecated since 4.5 use {@link #isAuthorized(HttpServletRequest)} instead.
95 */
96 @Deprecated
97 protected boolean isAuthorized(AccessManager accessManager, HttpServletRequest request) {
98 return isAuthorized(request);
99 }
100
101 /**
102 * Validates user permissions on URI.
103 */
104 protected boolean isAuthorized(HttpServletRequest request) {
105 String permission;
106 if (request.getMethod().equalsIgnoreCase("HEAD") || request.getMethod().equalsIgnoreCase("GET")) {
107 permission = Session.ACTION_READ;
108 } else {
109 permission = Session.ACTION_ADD_NODE;
110 }
111
112 final String uri = MgnlContext.getAggregationState().getCurrentURI();
113
114 boolean grant = PermissionUtil.isGranted("uri", uri, permission);
115 log.debug("user {} has " + (grant ? "" : "NOT ") + "been granted permission {} to access uri {}", new Object[] { MgnlContext.getUser().getName(), permission, uri });
116 return grant;
117 }
118
119 }