/*
 * Copyright © 2016-2017 European Support Limited
 *
 * 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.openecomp.server.filters;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ActionAuthorizationFilter implements Filter {

    @Override
    public void destroy() {
        //destroy() is not implemented for ActionAuthorizationFilter
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
        throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) servletRequest;
        if (httpRequest.isUserInRole(httpRequest.getMethod().toUpperCase())) {
            filterChain.doFilter(servletRequest, servletResponse);
        } else {
            setResponseStatus((HttpServletResponse) servletResponse, HttpServletResponse.SC_FORBIDDEN);
        }
    }

    private void setResponseStatus(HttpServletResponse response, int status) {
        response.setStatus(status);
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
        //init() is not implemented for ActionAuthorizationFilter
    }
}