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The Red5 server service daemon
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/*
 * RED5 Open Source Media Server - https://github.com/Red5/ Copyright 2006-2016 by respective authors (see below). All rights reserved. Licensed 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 http://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 org.red5.server;

import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.RandomAccessFile;
import java.net.Socket;
import java.nio.file.Paths;

/**
 * Provides a means to cleanly shutdown an instance from the command line.
 *
 * @author The Red5 Project
 * @author Paul Gregoire ([email protected])
 */
public class Shutdown {

    /**
     * Connects to the given port (default: 9999) and invokes shutdown.
     * 
     * Arg 0 = port number
     * Arg 1 = token
     * 
     *
     * @param args
     *            see args list
     */
    public static void main(String[] args) {
        String host = System.getProperty("red5.shutdown.host", "127.0.0.1");
        try (Socket clientSocket = new Socket(host, Integer.valueOf(args[0])); PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true); BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));) {
            System.out.printf("Connected - local: %s remote: %s%n", clientSocket.getLocalSocketAddress().toString(), clientSocket.getRemoteSocketAddress().toString());
            // send the token
            String token = "cafebeef";
            if (args.length > 1) {
                token = args[1];
            } else {
                // read the token from the file
                try {
                    File tokenFile = Paths.get("shutdown.token").toFile();
                    RandomAccessFile raf = new RandomAccessFile(tokenFile, "r");
                    byte[] buf = new byte[36];
                    raf.readFully(buf);
                    token = new String(buf);
                    System.out.printf("Token loaded: %s%n", token);
                    raf.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            out.println(token);
        } catch (Exception e) {
            System.err.printf("Exception connecting to %s%n", host);
            e.printStackTrace();
            System.exit(1);
        }
    }
}