/**
* This file is part of Graylog2.
*
* Graylog2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog2 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog2. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.security.realm;
import com.google.common.collect.Sets;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.graylog2.users.User;
import org.graylog2.users.UserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import java.util.Collections;
import java.util.List;
public class MongoDbAuthorizationRealm extends AuthorizingRealm {
private static final Logger LOG = LoggerFactory.getLogger(MongoDbAuthorizationRealm.class);
private final UserService userService;
@Inject
public MongoDbAuthorizationRealm(UserService userService) {
this.userService = userService;
}
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
LOG.debug("Retrieving authorization information for {}", principals);
final SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
final User user = userService.load(principals.getPrimaryPrincipal().toString());
final List<String> permissions;
if (null == user) {
permissions = Collections.emptyList();
} else {
permissions = user.getPermissions();
if (permissions != null) {
info.setStringPermissions(Sets.newHashSet(permissions));
}
}
LOG.debug("User {} has permissions: {}", principals, permissions);
return info;
}
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
// this class does not authenticate at all
return null;
}
}