org.teiid.spring.identity.SpringSecurityHelper Maven / Gradle / Ivy
/*
* Copyright 2012-2017 the original author or authors.
*
* 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.teiid.spring.identity;
import javax.security.auth.Subject;
import javax.security.auth.login.LoginException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.teiid.security.Credentials;
import org.teiid.security.GSSResult;
import org.teiid.security.SecurityHelper;
public class SpringSecurityHelper implements SecurityHelper {
private static final String ANONYMOUS = "anonymous";
private static final Log logger = LogFactory.getLog(SpringSecurityHelper.class);
private AuthenticationManager authenticationManager;
@Override
public Object associateSecurityContext(Object newContext) {
Authentication context = SecurityContextHolder.getContext().getAuthentication();
if (newContext != context) {
SecurityContextHolder.getContext().setAuthentication((Authentication)newContext);
}
return context;
}
@Override
public void clearSecurityContext() {
SecurityContextHolder.getContext().setAuthentication(null);
}
@Override
public Object getSecurityContext(String securityDomain) {
return SecurityContextHolder.getContext().getAuthentication();
}
@Override
public Subject getSubjectInContext(Object context) {
if (!(context instanceof Authentication)) {
return null;
}
Authentication sc = (Authentication)context;
return buildSubject(sc);
}
@Override
public Object authenticate(String securityDomain, String baseUserName,
Credentials credentials, String applicationName) throws LoginException {
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (authenticationManager != null) {
//if authentication is not null, we'll logically treat as caller identity
if (authentication == null) {
UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(baseUserName,
credentials == null ? null
: new String(credentials.getCredentialsAsCharArray()));
try {
authentication = authenticationManager.authenticate(token);
} catch (AuthenticationException e) {
throw new LoginException(e.getMessage());
}
}
baseUserName = authentication.getName();
} else {
return null;
}
if (logger.isTraceEnabled()) {
logger.trace("Logged in user: " + baseUserName);
}
return authentication;
}
@Override
public GSSResult negotiateGssLogin(String securityDomain, byte[] serviceTicket) throws LoginException {
return null;
}
private Subject buildSubject(final Authentication authentication) {
Subject s = new Subject();
s.getPrincipals().add(new SimplePrincipal(authentication == null ? ANONYMOUS:authentication.getName()));
if (authentication != null) {
SimpleGroup g = new SimpleGroup("Roles");
for (GrantedAuthority ga : authentication.getAuthorities()) {
String role = ga.getAuthority();
g.addMember(new SimplePrincipal(role));
}
s.getPrincipals().add(g);
}
return s;
}
public void setAuthenticationManager(AuthenticationManager authenticationManager) {
this.authenticationManager = authenticationManager;
}
}