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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.endpoints.http.server;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class AuthorizationFilter implements Filter {
private static Logger logger = LoggerFactory.getLogger(AuthorizationFilter.class);
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
if (!(servletRequest instanceof HttpServletRequest)) {
throw new ServletException("Not an HttpServletRequest instance");
}
if (!(servletResponse instanceof HttpServletResponse)) {
throw new ServletException("Not an HttpServletResponse instance");
}
HttpServletRequest request = (HttpServletRequest) servletRequest;
HttpServletResponse response = (HttpServletResponse) servletResponse;
String role = getRole(request);
boolean authorized = request.isUserInRole(role);
logger.info("user {} in role {} is {}authorized to {}",
request.getUserPrincipal(), role, ((authorized) ? "" : "NOT "), request.getMethod());
if (!authorized) {
response.setStatus(HttpServletResponse.SC_FORBIDDEN);
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
protected abstract String getRole(HttpServletRequest request);
}
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