/**
 * Copyright (c) 2017 Contributors to the Eclipse Foundation
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.eclipse.microprofile.openapi.apps.petstore.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.FilterConfig;
import javax.servlet.http.HttpServletResponse;

public class ApiOriginFilter implements Filter {
    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
            HttpServletResponse res = (HttpServletResponse) response;
            res.addHeader("Access-Control-Allow-Origin", "*");
            res.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT");
            res.addHeader("Access-Control-Allow-Headers", "Content-Type, api_key, Authorization");
            chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }
}