/*
* JBoss, Home of Professional Open Source.
* Copyright 2012 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.server.handlers;
import java.util.Map;
import io.undertow.Handlers;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.CopyOnWriteMap;
import io.undertow.util.Headers;
/**
* A {@link HttpHandler} that implements virtual hosts based on the <code>Host:</code> http header
* header.
*
* @author Stuart Douglas
*/
public class NameVirtualHostHandler implements HttpHandler {
private volatile HttpHandler defaultHandler = ResponseCodeHandler.HANDLE_404;
private final Map<String, HttpHandler> hosts = new CopyOnWriteMap<String, HttpHandler>();
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
final String hostHeader = exchange.getRequestHeaders().getFirst(Headers.HOST);
if (hostHeader != null) {
String host;
if (hostHeader.contains(":")) { //header can be in host:port format
host = hostHeader.substring(0, hostHeader.lastIndexOf(":"));
} else {
host = hostHeader;
}
final HttpHandler handler = hosts.get(host);
if (handler != null) {
handler.handleRequest(exchange);
return;
}
}
defaultHandler.handleRequest(exchange);
}
public HttpHandler getDefaultHandler() {
return defaultHandler;
}
public Map<String, HttpHandler> getHosts() {
return hosts;
}
public NameVirtualHostHandler setDefaultHandler(final HttpHandler defaultHandler) {
Handlers.handlerNotNull(defaultHandler);
this.defaultHandler = defaultHandler;
return this;
}
public synchronized NameVirtualHostHandler addHost(final String host, final HttpHandler handler) {
Handlers.handlerNotNull(handler);
hosts.put(host, handler);
return this;
}
public synchronized NameVirtualHostHandler removeHost(final String host) {
hosts.remove(host);
return this;
}
}