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/*
* Copyright 2015 - 2016 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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.traccar.api;
import org.jboss.netty.handler.codec.http.HttpHeaders;
import org.traccar.Context;
import java.io.IOException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
public class CorsResponseFilter implements ContainerResponseFilter {
private static final String ORIGIN_ALL = "*";
private static final String HEADERS_ALL = "origin, content-type, accept, authorization";
private static final String METHODS_ALL = "GET, POST, PUT, DELETE, OPTIONS";
@Override
public void filter(ContainerRequestContext request, ContainerResponseContext response) throws IOException {
if (!response.getHeaders().containsKey(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_HEADERS)) {
String headers = Context.getConfig().getString("web.origin");
response.getHeaders().add(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_HEADERS, HEADERS_ALL);
}
if (!response.getHeaders().containsKey(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_CREDENTIALS)) {
response.getHeaders().add(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_CREDENTIALS, true);
}
if (!response.getHeaders().containsKey(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_METHODS)) {
response.getHeaders().add(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_METHODS, METHODS_ALL);
}
if (!response.getHeaders().containsKey(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_ORIGIN)) {
String origin = request.getHeaderString(HttpHeaders.Names.ORIGIN);
String allowed = Context.getConfig().getString("web.origin");
if (allowed == null || origin == null) {
response.getHeaders().add(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_ORIGIN, ORIGIN_ALL);
} else if (allowed.equals(ORIGIN_ALL) || allowed.contains(origin)) {
response.getHeaders().add(HttpHeaders.Names.ACCESS_CONTROL_ALLOW_ORIGIN, origin);
}
}
}
}
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