com.sun.grizzly.websockets.ServerHandShake Maven / Gradle / Ivy

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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package com.sun.grizzly.websockets;

import com.sun.grizzly.tcp.OutputBuffer;
import com.sun.grizzly.tcp.Response;
import com.sun.grizzly.tcp.http11.Constants;
import com.sun.grizzly.util.Utils;
import com.sun.grizzly.util.buf.ByteChunk;

import java.io.IOException;

public class ServerHandShake extends HandShake {

    private final byte[] serverSecKey;

    public ServerHandShake(final boolean secure, final String origin, final String serverHostName, final String port,
            final String resourcePath, final String subProtocol, final SecKey key1, final SecKey key2,
            final byte[] key3) throws HandshakeException {
        super(secure, origin, serverHostName, port, resourcePath);
        setSubProtocol(subProtocol);
        serverSecKey = key3 == null ? null : SecKey.generateServerKey(key1, key2, key3);
    }

    public byte[] getKey() {
        return serverSecKey;
    }

    public void respond(Response response) throws IOException {
        response.setStatus(101);
        response.setMessage("Web Socket Protocol Handshake");
        response.setHeader("Upgrade", "WebSocket");
        response.setHeader("Connection", "Upgrade");
        if (serverSecKey == null) {
            response.setHeader("WebSocket-Origin", getOrigin());
            response.setHeader("WebSocket-Location", getLocation());
            if (getSubProtocol() != null) {
                response.setHeader("WebSocket-Protocol", getSubProtocol());
            }
        } else {
            response.setHeader(WebSocketEngine.SERVER_SEC_WS_ORIGIN_HEADER, getOrigin());
            response.setHeader(WebSocketEngine.SERVER_SEC_WS_LOCATION_HEADER, getLocation());
            if (getSubProtocol() != null) {
                response.setHeader(WebSocketEngine.SEC_WS_PROTOCOL_HEADER, getSubProtocol());
            }
        }

        response.sendHeaders();
        if (serverSecKey != null) {
            final OutputBuffer buffer = response.getOutputBuffer();
            ByteChunk chunk = new ByteChunk(serverSecKey.length + Constants.CRLF_BYTES.length);
            chunk.append(serverSecKey, 0, serverSecKey.length);
            buffer.doWrite(chunk, response);
        }
        response.flush();
    }
}