| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.websocket.server; |
| |
| import java.io.IOException; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.eclipse.jetty.websocket.api.extensions.ExtensionConfig; |
| import org.eclipse.jetty.websocket.common.AcceptHash; |
| import org.eclipse.jetty.websocket.servlet.ServletUpgradeRequest; |
| import org.eclipse.jetty.websocket.servlet.ServletUpgradeResponse; |
| |
| /** |
| * WebSocket Handshake for <a href="https://tools.ietf.org/html/rfc6455">RFC 6455</a>. |
| */ |
| public class HandshakeRFC6455 implements WebSocketHandshake |
| { |
| /** RFC 6455 - Sec-WebSocket-Version */ |
| public static final int VERSION = 13; |
| |
| @Override |
| public void doHandshakeResponse(ServletUpgradeRequest request, ServletUpgradeResponse response) throws IOException |
| { |
| String key = request.getHeader("Sec-WebSocket-Key"); |
| |
| if (key == null) |
| { |
| throw new IllegalStateException("Missing request header 'Sec-WebSocket-Key'"); |
| } |
| |
| // build response |
| response.setHeader("Upgrade","WebSocket"); |
| response.addHeader("Connection","Upgrade"); |
| response.addHeader("Sec-WebSocket-Accept",AcceptHash.hashKey(key)); |
| |
| if (response.getExtensions() != null) |
| { |
| String value = ExtensionConfig.toHeaderValue(response.getExtensions()); |
| if (value != null) |
| { |
| response.addHeader("Sec-WebSocket-Extensions",value); |
| } |
| } |
| |
| request.complete(); |
| |
| response.setStatus(HttpServletResponse.SC_SWITCHING_PROTOCOLS); |
| response.complete(); |
| } |
| } |