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/*
 * Copyright (c) 2010-2017 Nathan Rajlich
 *
 *  Permission is hereby granted, free of charge, to any person
 *  obtaining a copy of this software and associated documentation
 *  files (the "Software"), to deal in the Software without
 *  restriction, including without limitation the rights to use,
 *  copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the
 *  Software is furnished to do so, subject to the following
 *  conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *  OTHER DEALINGS IN THE SOFTWARE.
 */

package com.bugvm.websocket.drafts;

import com.bugvm.websocket.exceptions.InvalidHandshakeException;
import com.bugvm.websocket.handshake.ClientHandshake;
import com.bugvm.websocket.handshake.HandshakeBuilder;
import com.bugvm.websocket.handshake.ServerHandshakeBuilder;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;

/**
 * Implementation for the RFC 6455 websocket protocol
 * This is the recommended class for your websocket connection
 */
@SuppressWarnings("deprecation")
public class Draft_6455 extends Draft_17 {

    @Override
    public HandshakeBuilder postProcessHandshakeResponseAsServer(ClientHandshake request, ServerHandshakeBuilder response) throws InvalidHandshakeException {
        super.postProcessHandshakeResponseAsServer(request, response);
        response.setHttpStatusMessage("Web Socket Protocol Handshake");
        response.put("Server", "TooTallNate Java-WebSocket");
        response.put("Date", getServerTime());
        return response;
    }

    @Override
    public Draft copyInstance() {
        return new Draft_6455();
    }

    private String getServerTime() {
        Calendar calendar = Calendar.getInstance();
        SimpleDateFormat dateFormat = new SimpleDateFormat(
                "EEE, dd MMM yyyy HH:mm:ss z", Locale.US);
        dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
        return dateFormat.format(calendar.getTime());
    }
}