org.atmosphere.interceptor.NginxInterceptor Maven / Gradle / Ivy
/*
* Copyright 2015 Async-IO.org
*
* 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.atmosphere.interceptor;
import org.atmosphere.cpr.Action;
import org.atmosphere.cpr.AtmosphereInterceptorAdapter;
import org.atmosphere.cpr.AtmosphereResource;
import org.atmosphere.util.Utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Add proper header for Nginx's buffering http://wiki.nginx.org/HttpProxyModule#proxy_buffering
*
* This interceptor set the 'X-Accel-Buffering : No' on the {@link org.atmosphere.cpr.AtmosphereResponse} before it gets suspended.
*
* @author Jeanfrancois Arcand
*/
public class NginxInterceptor extends AtmosphereInterceptorAdapter {
private final static Logger logger = LoggerFactory.getLogger(NginxInterceptor.class);
@Override
public Action inspect(AtmosphereResource r) {
if (Utils.webSocketMessage(r)) return Action.CONTINUE;
try {
r.getResponse().addHeader("X-Accel-Buffering", "No");
} catch (Throwable t) {
logger.trace("", t);
}
return Action.CONTINUE;
}
}