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

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package com.sun.grizzly.websockets;

import com.sun.grizzly.util.http.MimeHeaders;

import java.io.IOException;
import java.nio.charset.Charset;

public class ClientHandShake extends HandShake {
    private final static byte[] RESPONSE_BYTES = Charset.forName("ASCII").
            encode("HTTP/1.1 101 Web Socket Protocol Handshake\r\n").array();
    private final static byte[] UPGRADE_BYTES = Charset.forName("ASCII").
            encode("Upgrade: WebSocket\r\nConnection: Upgrade\r\n").array();
    private boolean upgrade;
    private boolean connection;

    public ClientHandShake(MimeHeaders headers, boolean secure, String path) throws IOException {
        super(headers, secure, path);
        upgrade = "WebSocket".equals(headers.getHeader("Upgrade"));
        connection = "Upgrade".equals(headers.getHeader("Connection"));
        if(getServerHostName() == null || getOrigin() == null || !upgrade || !connection) {
            throw new IOException("Missing required headers for WebSocket negotiation");
        }
    }
}