/**
* 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;
import org.apache.shiro.authz.AuthorizationException;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.apache.shiro.subject.Subject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.ws.rs.NotAuthorizedException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.core.SecurityContext;
import java.io.IOException;
public class ShiroAuthorizationFilter implements ContainerRequestFilter {
private static final Logger LOG = LoggerFactory.getLogger(ShiroAuthorizationFilter.class);
private final RequiresPermissions annotation;
public ShiroAuthorizationFilter(RequiresPermissions annotation) {
this.annotation = annotation;
}
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
final SecurityContext securityContext = requestContext.getSecurityContext();
if (!(securityContext instanceof ShiroSecurityContext)) {
return;
}
final ShiroSecurityContext context = (ShiroSecurityContext) securityContext;
final Subject subject = context.getSubject();
try {
LOG.debug("Checking authorization for user {}, needs permissions {}", subject, annotation.value());
new ContextAwarePermissionAnnotationHandler(context).assertAuthorized(annotation);
} catch (AuthorizationException e) {
LOG.info("User not authorized.", e);
throw new NotAuthorizedException(e, "Basic realm=\"Graylog2 Server\"");
}
}
}