org.acegisecurity.runas.RunAsManagerImpl Maven / Gradle / Ivy
/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.acegisecurity.runas;
import org.acegisecurity.Authentication;
import org.acegisecurity.ConfigAttribute;
import org.acegisecurity.ConfigAttributeDefinition;
import org.acegisecurity.GrantedAuthority;
import org.acegisecurity.GrantedAuthorityImpl;
import org.acegisecurity.RunAsManager;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;
/**
* Basic concrete implementation of a {@link RunAsManager}.Is activated if any {@link
* ConfigAttribute#getAttribute()} is prefixed with RUN_AS_
. If found, it generates a new {@link
* RunAsUserToken} containing the same principal, credentials and granted authorities as the original {@link
* Authentication} object, along with {@link GrantedAuthorityImpl}s for each RUN_AS_
indicated. The
* created GrantedAuthorityImpl
s will be prefixed with a special prefix indicating that it is a role
* (default prefix value is ROLE_
), and then the remainder of the RUN_AS_
keyword. For
* example, RUN_AS_FOO
will result in the creation of a granted authority of
* ROLE_RUN_AS_FOO
.
* The role prefix may be overriden from the default, to match that used elsewhere, for example when using an
* existing role database with another prefix. An empty role prefix may also be specified. Note however that there are
* potential issues with using an empty role prefix since different categories of {@link
* org.acegisecurity.ConfigAttribute} can not be properly discerned based on the prefix, with possible consequences
* when performing voting and other actions. However, this option may be of some use when using preexisting role names
* without a prefix, and no ability exists to prefix them with a role prefix on reading them in, such as provided for
* example in {@link org.acegisecurity.userdetails.jdbc.JdbcDaoImpl}.
*
* @author Ben Alex
* @author colin sampaleanu
* @version $Id: RunAsManagerImpl.java 1496 2006-05-23 13:38:33Z benalex $
*/
public class RunAsManagerImpl implements RunAsManager, InitializingBean {
//~ Instance fields ================================================================================================
private String key;
private String rolePrefix = "ROLE_";
//~ Methods ========================================================================================================
public void afterPropertiesSet() throws Exception {
Assert.notNull(key, "A Key is required and should match that configured for the RunAsImplAuthenticationProvider");
}
public Authentication buildRunAs(Authentication authentication, Object object, ConfigAttributeDefinition config) {
List newAuthorities = new Vector();
Iterator iter = config.getConfigAttributes();
while (iter.hasNext()) {
ConfigAttribute attribute = (ConfigAttribute) iter.next();
if (this.supports(attribute)) {
GrantedAuthorityImpl extraAuthority = new GrantedAuthorityImpl(getRolePrefix()
+ attribute.getAttribute());
newAuthorities.add(extraAuthority);
}
}
if (newAuthorities.size() == 0) {
return null;
} else {
for (int i = 0; i < authentication.getAuthorities().length; i++) {
newAuthorities.add(authentication.getAuthorities()[i]);
}
GrantedAuthority[] resultType = {new GrantedAuthorityImpl("holder")};
GrantedAuthority[] newAuthoritiesAsArray = (GrantedAuthority[]) newAuthorities.toArray(resultType);
return new RunAsUserToken(this.key, authentication.getPrincipal(), authentication.getCredentials(),
newAuthoritiesAsArray, authentication.getClass());
}
}
public String getKey() {
return key;
}
public String getRolePrefix() {
return rolePrefix;
}
public void setKey(String key) {
this.key = key;
}
/**
* Allows the default role prefix of ROLE_
to be overriden. May be set to an empty value,
* although this is usually not desireable.
*
* @param rolePrefix the new prefix
*/
public void setRolePrefix(String rolePrefix) {
this.rolePrefix = rolePrefix;
}
public boolean supports(ConfigAttribute attribute) {
if ((attribute.getAttribute() != null) && attribute.getAttribute().startsWith("RUN_AS_")) {
return true;
} else {
return false;
}
}
/**
* This implementation supports any type of class, because it does not query the presented secure object.
*
* @param clazz the secure object
*
* @return alwaus true
*/
public boolean supports(Class clazz) {
return true;
}
}