WebSocketServerHandshaker13.java — netty Source File

Source Code

/*
 * Copyright 2019 The Netty Project
 *
 * The Netty Project licenses this file to you 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:
 *
 *   https://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.netty.handler.codec.http.websocketx;

import io.netty.handler.codec.http.DefaultFullHttpResponse;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpHeaderValues;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpMethod;
import io.netty.handler.codec.http.HttpResponseStatus;
import io.netty.util.CharsetUtil;

import static io.netty.handler.codec.http.HttpMethod.GET;
import static io.netty.handler.codec.http.HttpVersion.*;

/**
 * <p>
 * Performs server side opening and closing handshakes for <a href="https://netty.io/s/rfc6455">RFC 6455</a>
 * (originally web socket specification <a href="https://netty.io/s/ws-17">draft-ietf-hybi-thewebsocketprotocol-17</a>).
 * </p>
 */
public class WebSocketServerHandshaker13 extends WebSocketServerHandshaker {

    public static final String WEBSOCKET_13_ACCEPT_GUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";

    /**
     * Constructor specifying the destination web socket location
     *
     * @param webSocketURL
     *        URL for web socket communications. e.g "ws://myhost.com/mypath". Subsequent web
     *        socket frames will be sent to this URL.
     * @param subprotocols
     *        CSV of supported protocols
     * @param allowExtensions
     *        Allow extensions to be used in the reserved bits of the web socket frame
     * @param maxFramePayloadLength
     *        Maximum allowable frame payload length. Setting this value to your application's
     *        requirement may reduce denial of service attacks using long data frames.
     */
    public WebSocketServerHandshaker13(
            String webSocketURL, String subprotocols, boolean allowExtensions, int maxFramePayloadLength) {
        this(webSocketURL, subprotocols, allowExtensions, maxFramePayloadLength, false);
    }

    /**
// ... (143 more lines)