2 * This document is a part of the source code and related artifacts
3 * for CollectionSpace, an open source collections management system
4 * for museums and related institutions:
6 * http://www.collectionspace.org
7 * http://wiki.collectionspace.org
9 * Copyright 2009 University of California at Berkeley
11 * Licensed under the Educational Community License (ECL), Version 2.0.
12 * You may not use this file except in compliance with this License.
14 * You may obtain a copy of the ECL 2.0 License at
16 * https://source.collectionspace.org/collection-space/LICENSE.txt
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an "AS IS" BASIS,
20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
24 * This document is a part of the source code and related artifacts
25 * for CollectionSpace, an open source collections management system
26 * for museums and related institutions:
28 * http://www.collectionspace.org
29 * http://wiki.collectionspace.org
31 * Copyright 2009 University of California at Berkeley
33 * Licensed under the Educational Community License (ECL), Version 2.0.
34 * You may not use this file except in compliance with this License.
36 * You may obtain a copy of the ECL 2.0 License at
38 * https://source.collectionspace.org/collection-space/LICENSE.txt
40 * Unless required by applicable law or agreed to in writing, software
41 * distributed under the License is distributed on an "AS IS" BASIS,
42 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
43 * See the License for the specific language governing permissions and
44 * limitations under the License.
47 * To change this template, choose Tools | Templates
48 * and open the template in the editor.
50 package org.collectionspace.authentication.spring;
52 import java.security.acl.Group;
53 import java.util.ArrayList;
54 import java.util.Enumeration;
55 import java.util.List;
57 import javax.security.auth.Subject;
58 import org.collectionspace.authentication.CSpaceTenant;
59 import org.collectionspace.authentication.spi.AuthNContext;
60 import org.springframework.security.authentication.jaas.JaasAuthenticationToken;
61 import org.springframework.security.core.Authentication;
62 import org.springframework.security.core.context.SecurityContextHolder;
65 * SpringAuthNContext provides utilities to CSpace services runtime
68 final public class SpringAuthNContext extends AuthNContext {
69 //private static final String SUBJECT_CONTEXT_KEY = "javax.security.auth.Subject.container";
71 public String getUserId() {
72 Authentication authToken = SecurityContextHolder.getContext().getAuthentication();
73 return authToken.getName();
77 * retrieve tenant ids from Jaas LoginContext
81 public String[] getTenantIds() {
83 ArrayList<String> tenantList = new ArrayList<String>();
84 CSpaceTenant[] tenants = getTenants();
85 for (CSpaceTenant tenant : tenants) {
86 tenantList.add(tenant.getId());
88 return tenantList.toArray(new String[0]);
92 public String getCurrentTenantId() {
93 //FIXME assumption in 1.0: each user is associated with a single tenant
94 String[] tenantIds = getTenantIds();
95 if (tenantIds.length < 1) {
96 throw new IllegalStateException("No tenant associated with user=" + getUserId());
98 return getTenantIds()[0];
101 public CSpaceTenant[] getTenants() {
102 List<CSpaceTenant> tenants = new ArrayList<CSpaceTenant>();
103 Subject caller = getSubject();
104 if (caller == null) {
105 String msg = "Could not find Subject!";
106 //TODO: find out why subject is not null
107 //FIXME: if logger is loaded when authn comes up, use it
109 System.err.println(msg);
110 return tenants.toArray(new CSpaceTenant[0]);
112 Set<Group> groups = null;
113 groups = caller.getPrincipals(Group.class);
114 if (groups != null && groups.size() == 0) {
115 String msg = "no role(s)/tenant(s) found!";
116 //TODO: find out why no roles / tenants found
117 //FIXME: if logger is loaded when authn comes up, use it
119 System.err.println(msg);
120 return tenants.toArray(new CSpaceTenant[0]);
122 for (Group g : groups) {
123 if ("Tenants".equals(g.getName())) {
124 Enumeration members = g.members();
125 while (members.hasMoreElements()) {
126 CSpaceTenant tenant = (CSpaceTenant) members.nextElement();
128 //FIXME: if logger is loaded when authn comes up, use it
129 // if (logger.isDebugEnabled()) {
130 // logger.debug("found tenant id=" + tenant.getId()
131 // + " name=" + tenant.getName());
136 return tenants.toArray(new CSpaceTenant[0]);
140 public String getCurrentTenantName() {
141 //FIXME assumption in 1.0: each user is associated with a single tenant
142 CSpaceTenant[] tenants = getTenants();
143 if (tenants.length < 1) {
144 throw new IllegalStateException("No tenant associated with user=" + getUserId());
146 return getTenants()[0].getName();
149 public Subject getSubject() {
150 Subject caller = null;
151 //if Spring was not used....
152 //caller = (Subject) PolicyContext.getContext(SUBJECT_CONTEXT_KEY);
154 //FIXME the follow call should be protected with a privileged action
155 //and must only be available to users with super privileges
156 //Spring does not offer any easy mechanism
157 //It is a bad idea to ship with a kernel user...kernel user should be
158 //created at startup time perhaps and used it here
159 Authentication authToken = SecurityContextHolder.getContext().getAuthentication();
160 JaasAuthenticationToken jaasToken = null;
161 if (authToken instanceof JaasAuthenticationToken) {
162 jaasToken = (JaasAuthenticationToken) authToken;
163 caller = (Subject) jaasToken.getLoginContext().getSubject();