/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 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.websockets.core.protocol.version13;
import io.undertow.util.Headers;
import io.undertow.websockets.core.WebSocketChannel;
import io.undertow.websockets.core.WebSocketVersion;
import io.undertow.websockets.core.protocol.version07.Hybi07Handshake;
import io.undertow.websockets.extensions.CompositeExtensionFunction;
import io.undertow.websockets.extensions.ExtensionFunction;
import io.undertow.websockets.spi.WebSocketHttpExchange;
import org.xnio.IoUtils;
import io.undertow.connector.ByteBufferPool;
import org.xnio.StreamConnection;
import java.security.NoSuchAlgorithmException;
import java.util.Collections;
import java.util.List;
import java.util.Set;
/**
* The handshaking protocol implementation for Hybi-13.
*
* @author Mike Brock
* @author Stuart Douglas
*/
public class Hybi13Handshake extends Hybi07Handshake {
public Hybi13Handshake() {
super(WebSocketVersion.V13, Collections.<String>emptySet(), false);
}
public Hybi13Handshake(Set<String> subprotocols, boolean allowExtensions) {
super(WebSocketVersion.V13, subprotocols, allowExtensions);
}
@Override
protected void handshakeInternal(final WebSocketHttpExchange exchange) {
String origin = exchange.getRequestHeader(Headers.ORIGIN_STRING);
if (origin != null) {
exchange.setResponseHeader(Headers.ORIGIN_STRING, origin);
}
selectSubprotocol(exchange);
selectExtensions(exchange);
exchange.setResponseHeader(Headers.SEC_WEB_SOCKET_LOCATION_STRING, getWebSocketLocation(exchange));
final String key = exchange.getRequestHeader(Headers.SEC_WEB_SOCKET_KEY_STRING);
try {
final String solution = solve(key);
exchange.setResponseHeader(Headers.SEC_WEB_SOCKET_ACCEPT_STRING, solution);
performUpgrade(exchange);
} catch (NoSuchAlgorithmException e) {
IoUtils.safeClose(exchange);
exchange.endExchange();
return;
}
}
@Override
public WebSocketChannel createChannel(WebSocketHttpExchange exchange, final StreamConnection channel, final ByteBufferPool pool) {
List<ExtensionFunction> extensionFunctions = initExtensions(exchange);
return new WebSocket13Channel(channel, pool, getWebSocketLocation(exchange), exchange.getResponseHeader(Headers.SEC_WEB_SOCKET_PROTOCOL_STRING), false, !extensionFunctions.isEmpty(), CompositeExtensionFunction.compose(extensionFunctions), exchange.getPeerConnections(), exchange.getOptions());
}
}