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/*
* Copyright 2005-2014 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.springframework.ws.soap.security.wss4j2.callback;
import java.io.IOException;
import javax.security.auth.callback.UnsupportedCallbackException;
import org.apache.wss4j.common.ext.WSPasswordCallback;
import org.apache.wss4j.common.principal.WSUsernameTokenPrincipalImpl;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.dao.DataAccessException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserCache;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.core.userdetails.cache.NullUserCache;
import org.springframework.util.Assert;
import org.springframework.ws.soap.security.callback.CleanupCallback;
import org.springframework.ws.soap.security.support.SpringSecurityUtils;
/**
* Callback handler that validates a plain text or digest password using an Spring Security {@code UserDetailsService}.
*
* <p>An Spring Security {@link UserDetailsService} is used to load {@link UserDetails} from. The digest of the
* password contained in this details object is then compared with the digest in the message.
*
* @author Arjen Poutsma
* @author Jamin Hitchcock
* @since 2.3.0
*/
public class SpringSecurityPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler
implements InitializingBean {
private UserCache userCache = new NullUserCache();
private UserDetailsService userDetailsService;
/** Sets the users cache. Not required, but can benefit performance. */
public void setUserCache(UserCache userCache) {
this.userCache = userCache;
}
/** Sets the Spring Security user details service. Required. */
public void setUserDetailsService(UserDetailsService userDetailsService) {
this.userDetailsService = userDetailsService;
}
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(userDetailsService, "userDetailsService is required");
}
/**
* Invoked when the callback has a {@link WSPasswordCallback#USERNAME_TOKEN} usage.
*
* <p>This method is invoked when WSS4J needs the password to fill in or to verify a UsernameToken.
*
* <p>Default implementation throws an {@link UnsupportedCallbackException}.
*/
protected void handleUsernameToken(WSPasswordCallback callback) throws IOException, UnsupportedCallbackException {
UserDetails user = loadUserDetails(callback.getIdentifier());
if (user != null) {
SpringSecurityUtils.checkUserValidity(user);
callback.setPassword(user.getPassword());
}
}
@Override
protected void handleUsernameTokenPrincipal(UsernameTokenPrincipalCallback callback)
throws IOException, UnsupportedCallbackException {
UserDetails user = loadUserDetails(callback.getPrincipal().getName());
WSUsernameTokenPrincipalImpl principal = callback.getPrincipal();
UsernamePasswordAuthenticationToken authRequest =
new UsernamePasswordAuthenticationToken(principal, principal.getPassword(), user.getAuthorities());
if (logger.isDebugEnabled()) {
logger.debug("Authentication success: " + authRequest.toString());
}
SecurityContextHolder.getContext().setAuthentication(authRequest);
}
@Override
protected void handleCleanup(CleanupCallback callback) throws IOException, UnsupportedCallbackException {
SecurityContextHolder.clearContext();
}
private UserDetails loadUserDetails(String username) throws DataAccessException {
UserDetails user = userCache.getUserFromCache(username);
if (user == null) {
try {
user = userDetailsService.loadUserByUsername(username);
}
catch (UsernameNotFoundException notFound) {
if (logger.isDebugEnabled()) {
logger.debug("Username '" + username + "' not found");
}
return null;
}
userCache.putUserInCache(user);
}
return user;
}
}