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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.playstation.internal;
  14
  15 import static org.openhab.binding.playstation.internal.PlayStationBindingConstants.*;
  16
  17 import java.io.IOException;
  18 import java.net.DatagramPacket;
  19 import java.net.DatagramSocket;
  20 import java.net.InetAddress;
  21 import java.net.InetSocketAddress;
  22 import java.net.Socket;
  23 import java.net.SocketTimeoutException;
  24 import java.nio.channels.SocketChannel;
  25 import java.nio.charset.StandardCharsets;
  26 import java.util.concurrent.ScheduledFuture;
  27 import java.util.concurrent.TimeUnit;
  28
  29 import org.eclipse.jdt.annotation.NonNullByDefault;
  30 import org.eclipse.jdt.annotation.Nullable;
  31 import org.openhab.core.library.types.OnOffType;
  32 import org.openhab.core.thing.ChannelUID;
  33 import org.openhab.core.thing.Thing;
  34 import org.openhab.core.thing.ThingStatus;
  35 import org.openhab.core.thing.ThingStatusDetail;
  36 import org.openhab.core.thing.binding.BaseThingHandler;
  37 import org.openhab.core.types.Command;
  38 import org.openhab.core.types.RefreshType;
  39 import org.openhab.core.util.HexUtils;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 /**
  44  * The {@link PS3Handler} is responsible for handling commands, which are
  45  * sent to one of the channels.
  46  *
  47  * @author Fredrik Ahlström - Initial contribution
  48  */
  49 @NonNullByDefault
  50 public class PS3Handler extends BaseThingHandler {
  51
  52     private final Logger logger = LoggerFactory.getLogger(PS3Handler.class);
  53     private static final int SOCKET_TIMEOUT_SECONDS = 2;
  54     private boolean isDisposed = false;
  55
  56     private PS3Configuration config = new PS3Configuration();
  57
  58     private @Nullable ScheduledFuture<?> refreshTimer;
  59
  60     public PS3Handler(Thing thing) {
  61         super(thing);
  62     }
  63
  64     @Override
  65     public void handleCommand(ChannelUID channelUID, Command command) {
  66         if (!(command instanceof RefreshType)) {
  67             if (CHANNEL_POWER.equals(channelUID.getId()) && command instanceof OnOffType) {
  68                 if (command.equals(OnOffType.ON)) {
  69                     turnOnPS3();
  70                 }
  71             }
  72         }
  73     }
  74
  75     @Override
  76     public void initialize() {
  77         config = getConfigAs(PS3Configuration.class);
  78         isDisposed = false;
  79
  80         updateStatus(ThingStatus.ONLINE);
  81         setupRefreshTimer();
  82     }
  83
  84     @Override
  85     public void dispose() {
  86         isDisposed = true;
  87         final ScheduledFuture<?> timer = refreshTimer;
  88         if (timer != null) {
  89             timer.cancel(false);
  90             refreshTimer = null;
  91         }
  92     }
  93
  94     /**
  95      * Sets up a timer for querying the PS3 (using the scheduler) every 10 seconds.
  96      */
  97     private void setupRefreshTimer() {
  98         final ScheduledFuture<?> timer = refreshTimer;
  99         if (timer != null) {
 100             timer.cancel(false);
 101         }
 102         refreshTimer = scheduler.scheduleWithFixedDelay(this::updateAllChannels, 0, 10, TimeUnit.SECONDS);
 103     }
 104
 105     /**
 106      * This tries to connect to port 5223 on the PS3,
 107      * if the connection times out the PS3 is OFF, if connection is refused the PS3 is ON.
 108      */
 109     private void updateAllChannels() {
 110         try (SocketChannel channel = SocketChannel.open()) {
 111             Socket socket = channel.socket();
 112             socket.setSoTimeout(SOCKET_TIMEOUT_SECONDS * 1000);
 113             channel.configureBlocking(true);
 114             channel.connect(new InetSocketAddress(config.ipAddress, DEFAULT_PS3_WAKE_ON_LAN_PORT));
 115         } catch (IOException e) {
 116             String message = e.getMessage();
 117             if (message.contains("refused")) {
 118                 updateState(CHANNEL_POWER, OnOffType.ON);
 119                 updateStatus(ThingStatus.ONLINE);
 120             } else if (message.contains("timed out") || message.contains("is down")) {
 121                 updateState(CHANNEL_POWER, OnOffType.OFF);
 122             } else {
 123                 logger.debug("PS3 read power, IOException: {}", e.getMessage());
 124             }
 125         }
 126     }
 127
 128     private void turnOnPS3() {
 129         String macAdr = thing.getProperties().get(Thing.PROPERTY_MAC_ADDRESS);
 130         if (macAdr == null) {
 131             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "No MAC address configured.");
 132             return;
 133         }
 134         try {
 135             // send WOL magic packet
 136             byte[] magicPacket = makeWOLMagicPacket(macAdr);
 137             logger.debug("PS3 wol packet: {}", magicPacket);
 138             InetAddress bcAddress = InetAddress.getByName("255.255.255.255");
 139             DatagramPacket wakePacket = new DatagramPacket(magicPacket, magicPacket.length, bcAddress,
 140                     DEFAULT_PS3_WAKE_ON_LAN_PORT);
 141             // send discover
 142             byte[] discover = "SRCH".getBytes(StandardCharsets.US_ASCII);
 143             DatagramPacket srchPacket = new DatagramPacket(discover, discover.length, bcAddress,
 144                     DEFAULT_PS3_WAKE_ON_LAN_PORT);
 145             logger.debug("Search message: '{}'", discover);
 146
 147             // wait for responses
 148             byte[] rxbuf = new byte[256];
 149             DatagramPacket receivePacket = new DatagramPacket(rxbuf, rxbuf.length);
 150             scheduler.execute(() -> wakeMethod(srchPacket, receivePacket, wakePacket, 34));
 151         } catch (IOException e) {
 152             logger.debug("No PS3 device found. Diagnostic: {}", e.getMessage());
 153         }
 154     }
 155
 156     private void wakeMethod(DatagramPacket srchPacket, DatagramPacket receivePacket, DatagramPacket wakePacket,
 157             int triesLeft) {
 158         try (DatagramSocket searchSocket = new DatagramSocket(); DatagramSocket wakeSocket = new DatagramSocket();) {
 159             wakeSocket.setBroadcast(true);
 160             searchSocket.setBroadcast(true);
 161             searchSocket.setSoTimeout(1000);
 162
 163             searchSocket.send(srchPacket);
 164             try {
 165                 searchSocket.receive(receivePacket);
 166                 logger.debug("PS3 started?: '{}'", receivePacket);
 167                 return;
 168             } catch (SocketTimeoutException e) {
 169                 // try again
 170             }
 171             wakeSocket.send(wakePacket);
 172             if (triesLeft <= 0 || isDisposed) {
 173                 logger.debug("PS3 not started!");
 174             } else {
 175                 scheduler.execute(() -> wakeMethod(srchPacket, receivePacket, wakePacket, triesLeft - 1));
 176             }
 177         } catch (IOException e) {
 178             logger.debug("No PS3 device found. Diagnostic: {}", e.getMessage());
 179         }
 180     }
 181
 182     private byte[] makeWOLMagicPacket(String macAddress) {
 183         byte[] wolPacket = new byte[6 * 17];
 184         if (macAddress.length() < 17) {
 185             return wolPacket;
 186         }
 187         int pos = 0;
 188         for (int i = 0; i < 6; i++) {
 189             wolPacket[pos++] = -1; // 0xFF
 190         }
 191         byte[] macBytes = HexUtils.hexToBytes(macAddress, ":");
 192         for (int j = 0; j < 16; j++) {
 193             System.arraycopy(macBytes, 0, wolPacket, 6 + j * 6, 6);
 194         }
 195         return wolPacket;
 196     }
 197 }