2 * Copyright (c) 2010-2021 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
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
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.tivo.internal.service;
15 import static org.openhab.binding.tivo.internal.TiVoBindingConstants.CONFIG_SOCKET_TIMEOUT_MS;
17 import java.io.BufferedReader;
18 import java.io.IOException;
19 import java.io.InputStream;
20 import java.io.InputStreamReader;
21 import java.io.PrintStream;
22 import java.net.Socket;
23 import java.net.SocketTimeoutException;
24 import java.net.UnknownHostException;
25 import java.util.concurrent.TimeUnit;
26 import java.util.regex.Matcher;
27 import java.util.regex.Pattern;
29 import org.eclipse.jdt.annotation.NonNullByDefault;
30 import org.eclipse.jdt.annotation.Nullable;
31 import org.openhab.binding.tivo.internal.handler.TiVoHandler;
32 import org.openhab.binding.tivo.internal.service.TivoStatusData.ConnectionStatus;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
37 * TivoStatusProvider class to maintain a connection out to the Tivo, monitor and process status messages returned..
39 * @author Jayson Kubilis - Initial contribution
40 * @author Andrew Black - Updates / compilation corrections
41 * @author Michael Lobstein - Updated for OH3
45 public class TivoStatusProvider {
46 private static final Pattern TIVO_STATUS_PATTERN = Pattern.compile("^CH_STATUS (\\d{4}) (?:(\\d{4}))?");
47 private static final int TIMEOUT_SEC = 3000;
49 private final Logger logger = LoggerFactory.getLogger(TivoStatusProvider.class);
50 private @Nullable Socket tivoSocket = null;
51 private @Nullable PrintStream streamWriter = null;
52 private @Nullable StreamReader streamReader = null;
53 private @Nullable TiVoHandler tivoHandler = null;
54 private TivoStatusData tivoStatusData = new TivoStatusData();
55 private TivoConfigData tivoConfigData = new TivoConfigData();
56 private final String thingUid;
59 * Instantiates a new TivoConfigStatusProvider.
61 * @param tivoConfigData {@link TivoConfigData} configuration data for the specific thing.
62 * @param tivoStatusData {@link TivoStatusData} status data for the specific thing.
63 * @param tivoHandler {@link TivoHandler} parent handler object for the TivoConfigStatusProvider.
67 public TivoStatusProvider(TivoConfigData tivoConfigData, TiVoHandler tivoHandler) {
68 this.tivoStatusData = new TivoStatusData(false, -1, -1, false, "INITIALISING", false, ConnectionStatus.UNKNOWN);
69 this.tivoConfigData = tivoConfigData;
70 this.tivoHandler = tivoHandler;
71 this.thingUid = tivoHandler.getThing().getUID().getAsString();
75 * {@link statusRefresh} initiates a connection to the TiVo. When a new connection is made and the TiVo is online,
76 * the current channel is always returned. The connection is then closed (allows the socket to be used by other
79 * @return {@link TivoStatusData} object
80 * @throws InterruptedException
82 public void statusRefresh() throws InterruptedException {
83 if (tivoStatusData.getConnectionStatus() != ConnectionStatus.INIT) {
84 logger.debug(" statusRefresh '{}' - EXISTING status data - '{}'", tivoConfigData.getCfgIdentifier(),
85 tivoStatusData.toString());
88 // this will close the connection and re-open every 12 hours
89 if (tivoConfigData.isKeepConnActive()) {
96 if (!tivoConfigData.isKeepConnActive()) {
102 * {@link cmdTivoSend} sends a command to the Tivo.
104 * @param tivoCommand the complete command string (KEYWORD + PARAMETERS e.g. SETCH 102) to send.
105 * @return {@link TivoStatusData} status data object, contains the result of the command.
106 * @throws InterruptedException
108 public @Nullable TivoStatusData cmdTivoSend(String tivoCommand) throws InterruptedException {
109 boolean connected = connTivoConnect();
110 PrintStream streamWriter = this.streamWriter;
112 if (!connected || streamWriter == null) {
113 return new TivoStatusData(false, -1, -1, false, "CONNECTION FAILED", false, ConnectionStatus.OFFLINE);
115 logger.debug("TiVo '{}' - sending command: '{}'", tivoConfigData.getCfgIdentifier(), tivoCommand);
117 // Handle special keyboard "repeat" commands
118 if (tivoCommand.contains("*")) {
119 repeatCount = Integer.parseInt(tivoCommand.substring(tivoCommand.indexOf("*") + 1));
120 tivoCommand = tivoCommand.substring(0, tivoCommand.indexOf("*"));
121 logger.debug("TiVo '{}' - repeating command: '{}' for '{}' times", tivoConfigData.getCfgIdentifier(),
122 tivoCommand, repeatCount);
124 for (int i = 1; i <= repeatCount; i++) {
126 streamWriter.println(tivoCommand.toString() + "\r");
127 if (streamWriter.checkError()) {
128 logger.debug("TiVo '{}' - called cmdTivoSend and encountered an IO error",
129 tivoConfigData.getCfgIdentifier());
130 tivoStatusData = new TivoStatusData(false, -1, -1, false, "CONNECTION FAILED", false,
131 ConnectionStatus.OFFLINE);
135 return tivoStatusData;
139 * {@link statusParse} processes the {@link TivoStatusData} status message returned from the TiVo.
141 * For channel status messages form 'CH_STATUS channel reason' or 'CH_STATUS channel sub-channel reason' calls
142 * {@link getParsedChannel} and returns the channel number (if a match is found in a valid formatted message).
144 * @param rawStatus string representing the message text returned by the TiVo
145 * @return TivoStatusData object conditionally populated based upon the raw status message
147 private TivoStatusData statusParse(String rawStatus) {
148 logger.debug(" statusParse '{}' - running on string '{}'", tivoConfigData.getCfgIdentifier(), rawStatus);
150 if (rawStatus.contentEquals("COMMAND_TIMEOUT")) {
151 // If connection status was UNKNOWN, COMMAND_TIMEOUT indicates the Tivo is alive, so update the status
152 if (this.tivoStatusData.getConnectionStatus() == ConnectionStatus.UNKNOWN) {
153 return new TivoStatusData(false, -1, -1, false, "COMMAND_TIMEOUT", false, ConnectionStatus.ONLINE);
155 // Otherwise ignore COMMAND_TIMEOUT, they occur a few seconds after each successful command, just return
156 // existing status again
157 return this.tivoStatusData;
161 return new TivoStatusData(false, -1, -1, false, "NO_STATUS_DATA_RETURNED", false,
162 tivoStatusData.getConnectionStatus());
164 return new TivoStatusData(true, -1, -1, false, "LIVETV_READY", true, ConnectionStatus.ONLINE);
165 case "CH_FAILED NO_LIVE":
166 return new TivoStatusData(false, -1, -1, false, "CH_FAILED NO_LIVE", true,
167 ConnectionStatus.STANDBY);
168 case "CH_FAILED RECORDING":
169 case "CH_FAILED MISSING_CHANNEL":
170 case "CH_FAILED MALFORMED_CHANNEL":
171 case "CH_FAILED INVALID_CHANNEL":
172 return new TivoStatusData(false, -1, -1, false, rawStatus, true, ConnectionStatus.ONLINE);
173 case "INVALID_COMMAND":
174 return new TivoStatusData(false, -1, -1, false, "INVALID_COMMAND", false, ConnectionStatus.ONLINE);
175 case "CONNECTION_RETRIES_EXHAUSTED":
176 return new TivoStatusData(false, -1, -1, false, "CONNECTION_RETRIES_EXHAUSTED", true,
177 ConnectionStatus.OFFLINE);
181 // Only other documented status is in the form 'CH_STATUS channel reason' or
182 // 'CH_STATUS channel sub-channel reason'
183 Matcher matcher = TIVO_STATUS_PATTERN.matcher(rawStatus);
184 int chNum = -1; // -1 used globally to indicate channel number error
186 boolean isRecording = false;
188 if (matcher.find()) {
189 logger.debug(" statusParse '{}' - groups '{}' with group count of '{}'", tivoConfigData.getCfgIdentifier(),
190 matcher.group(), matcher.groupCount());
191 if (matcher.groupCount() == 1 || matcher.groupCount() == 2) {
192 chNum = Integer.parseInt(matcher.group(1).trim());
193 logger.debug(" statusParse '{}' - parsed channel '{}'", tivoConfigData.getCfgIdentifier(), chNum);
195 if (matcher.groupCount() == 2 && matcher.group(2) != null) {
196 subChNum = Integer.parseInt(matcher.group(2).trim());
197 logger.debug(" statusParse '{}' - parsed sub-channel '{}'", tivoConfigData.getCfgIdentifier(),
201 if (rawStatus.contains("RECORDING")) {
205 rawStatus = rawStatus.replace(" REMOTE", "");
206 rawStatus = rawStatus.replace(" LOCAL", "");
207 return new TivoStatusData(true, chNum, subChNum, isRecording, rawStatus, true, ConnectionStatus.ONLINE);
209 logger.warn(" TiVo '{}' - Unhandled/unexpected status message: '{}'", tivoConfigData.getCfgIdentifier(),
211 return new TivoStatusData(false, -1, -1, false, rawStatus, false, tivoStatusData.getConnectionStatus());
215 * {@link connIsConnected} returns the connection state of the Socket, streamWriter and streamReader objects.
217 * @return true = connection exists and all objects look OK, false = connection does not exist or a problem has
221 private boolean connIsConnected() {
222 Socket tivoSocket = this.tivoSocket;
223 PrintStream streamWriter = this.streamWriter;
225 if (tivoSocket == null) {
226 logger.debug(" connIsConnected '{}' - FALSE: tivoSocket=null", tivoConfigData.getCfgIdentifier());
228 } else if (!tivoSocket.isConnected()) {
229 logger.debug(" connIsConnected '{}' - FALSE: tivoSocket.isConnected=false",
230 tivoConfigData.getCfgIdentifier());
232 } else if (tivoSocket.isClosed()) {
233 logger.debug(" connIsConnected '{}' - FALSE: tivoSocket.isClosed=true", tivoConfigData.getCfgIdentifier());
235 } else if (streamWriter == null) {
236 logger.debug(" connIsConnected '{}' - FALSE: tivoIOSendCommand=null", tivoConfigData.getCfgIdentifier());
238 } else if (streamWriter.checkError()) {
239 logger.debug(" connIsConnected '{}' - FALSE: tivoIOSendCommand.checkError()=true",
240 tivoConfigData.getCfgIdentifier());
242 } else if (streamReader == null) {
243 logger.debug(" connIsConnected '{}' - FALSE: streamReader=null", tivoConfigData.getCfgIdentifier());
250 * {@link connTivoConnect} manages the creation / retry process of the socket connection.
252 * @return true = connected, false = not connected
253 * @throws InterruptedException
255 public boolean connTivoConnect() throws InterruptedException {
256 for (int iL = 1; iL <= tivoConfigData.getNumRetry(); iL++) {
257 logger.debug(" connTivoConnect '{}' - starting connection process '{}' of '{}'.",
258 tivoConfigData.getCfgIdentifier(), iL, tivoConfigData.getNumRetry());
260 // Sort out the socket connection
261 if (connSocketConnect()) {
262 logger.debug(" connTivoConnect '{}' - Socket created / connection made.",
263 tivoConfigData.getCfgIdentifier());
264 StreamReader streamReader = this.streamReader;
265 if (streamReader != null && streamReader.isAlive()) {
266 // Send a newline to poke the Tivo to verify it responds with INVALID_COMMAND/COMMAND_TIMEOUT
267 streamWriter.println("\r");
271 logger.debug(" connTivoConnect '{}' - Socket creation failed.", tivoConfigData.getCfgIdentifier());
272 TiVoHandler tivoHandler = this.tivoHandler;
273 if (tivoHandler != null) {
274 tivoHandler.setStatusOffline();
284 * {@link connTivoReconnect} disconnect and reconnect the socket connection to the TiVo.
286 * @return boolean true = connection succeeded, false = connection failed
287 * @throws InterruptedException
289 public boolean connTivoReconnect() throws InterruptedException {
290 connTivoDisconnect();
292 return connTivoConnect();
296 * {@link connTivoDisconnect} cleanly closes the socket connection and dependent objects
299 public void connTivoDisconnect() throws InterruptedException {
300 TiVoHandler tivoHandler = this.tivoHandler;
301 StreamReader streamReader = this.streamReader;
302 PrintStream streamWriter = this.streamWriter;
303 Socket tivoSocket = this.tivoSocket;
305 logger.debug(" connTivoSocket '{}' - requested to disconnect/cleanup connection objects",
306 tivoConfigData.getCfgIdentifier());
308 // if isCfgKeepConnOpen = false, don't set status to OFFLINE since the socket is closed after each command
309 if (tivoHandler != null && tivoConfigData.isKeepConnActive()) {
310 tivoHandler.setStatusOffline();
313 if (streamWriter != null) {
314 streamWriter.close();
315 this.streamWriter = null;
319 if (tivoSocket != null) {
321 this.tivoSocket = null;
323 } catch (IOException e) {
324 logger.debug(" TiVo '{}' - I/O exception while disconnecting: '{}'. Connection closed.",
325 tivoConfigData.getCfgIdentifier(), e.getMessage());
328 if (streamReader != null) {
329 streamReader.interrupt();
330 streamReader.join(TIMEOUT_SEC);
331 this.streamReader = null;
336 * {@link connSocketConnect} opens a Socket connection to the TiVo. Creates a {@link StreamReader} (Input)
337 * thread to read the responses from the TiVo and a PrintStream (Output) {@link cmdTivoSend}
338 * to send commands to the device.
340 * @param pConnect true = make a new connection , false = close existing connection
341 * @return boolean true = connection succeeded, false = connection failed
342 * @throws InterruptedException
344 private synchronized boolean connSocketConnect() throws InterruptedException {
345 logger.debug(" connSocketConnect '{}' - attempting connection to host '{}', port '{}'",
346 tivoConfigData.getCfgIdentifier(), tivoConfigData.getHost(), tivoConfigData.getTcpPort());
348 if (connIsConnected()) {
349 logger.debug(" connSocketConnect '{}' - already connected to host '{}', port '{}'",
350 tivoConfigData.getCfgIdentifier(), tivoConfigData.getHost(), tivoConfigData.getTcpPort());
353 // something is wrong, so force a disconnect/clean up so we can try again
354 connTivoDisconnect();
358 Socket tivoSocket = new Socket(tivoConfigData.getHost(), tivoConfigData.getTcpPort());
359 tivoSocket.setKeepAlive(true);
360 tivoSocket.setSoTimeout(CONFIG_SOCKET_TIMEOUT_MS);
361 tivoSocket.setReuseAddress(true);
363 if (tivoSocket.isConnected() && !tivoSocket.isClosed()) {
364 if (streamWriter == null) {
365 streamWriter = new PrintStream(tivoSocket.getOutputStream(), false);
367 if (this.streamReader == null) {
368 StreamReader streamReader = new StreamReader(tivoSocket.getInputStream());
369 streamReader.start();
370 this.streamReader = streamReader;
372 this.tivoSocket = tivoSocket;
374 logger.debug(" connSocketConnect '{}' - socket creation failed to host '{}', port '{}'",
375 tivoConfigData.getCfgIdentifier(), tivoConfigData.getHost(), tivoConfigData.getTcpPort());
381 } catch (UnknownHostException e) {
382 logger.debug(" TiVo '{}' - while connecting, unexpected host error: '{}'",
383 tivoConfigData.getCfgIdentifier(), e.getMessage());
384 } catch (IOException e) {
385 if (tivoStatusData.getConnectionStatus() != ConnectionStatus.OFFLINE) {
386 logger.debug(" TiVo '{}' - I/O exception while connecting: '{}'", tivoConfigData.getCfgIdentifier(),
394 * {@link doNappTime} sleeps for the period specified by the getCmdWaitInterval parameter. Primarily used to allow
395 * the TiVo time to process responses after a command is issued.
397 * @throws InterruptedException
399 public void doNappTime() throws InterruptedException {
400 TimeUnit.MILLISECONDS.sleep(tivoConfigData.getCmdWaitInterval());
403 public TivoStatusData getServiceStatus() {
404 return tivoStatusData;
407 public void setServiceStatus(TivoStatusData tivoStatusData) {
408 this.tivoStatusData = tivoStatusData;
412 * {@link StreamReader} data stream reader that reads the status data returned from the TiVo.
415 public class StreamReader extends Thread {
416 private @Nullable BufferedReader bufferedReader = null;
419 * {@link StreamReader} construct a data stream reader that reads the status data returned from the TiVo via a
422 * @param inputStream socket input stream.
423 * @throws IOException
425 public StreamReader(InputStream inputStream) {
426 this.setName("OH-binding-" + thingUid + "-" + tivoConfigData.getHost() + ":" + tivoConfigData.getTcpPort());
427 this.bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
428 this.setDaemon(true);
434 logger.debug("streamReader {} is running. ", tivoConfigData.getCfgIdentifier());
435 while (!Thread.currentThread().isInterrupted()) {
436 String receivedData = null;
437 BufferedReader reader = bufferedReader;
438 if (reader == null) {
439 throw new IOException("streamReader failed: input stream is null");
443 receivedData = reader.readLine();
444 } catch (SocketTimeoutException e) {
445 // Do nothing. Just allow the thread to check if it has to stop.
448 if (receivedData != null) {
449 logger.debug("TiVo {} data received: {}", tivoConfigData.getCfgIdentifier(), receivedData);
450 TivoStatusData commandResult = statusParse(receivedData);
451 TiVoHandler handler = tivoHandler;
452 if (handler != null) {
453 handler.updateTivoStatus(tivoStatusData, commandResult);
455 tivoStatusData = commandResult;
459 } catch (IOException e) {
460 closeBufferedReader();
461 logger.debug("TiVo {} is disconnected. ", tivoConfigData.getCfgIdentifier(), e);
463 closeBufferedReader();
464 logger.debug("streamReader {} is stopped. ", tivoConfigData.getCfgIdentifier());
467 private void closeBufferedReader() {
468 BufferedReader reader = bufferedReader;
469 if (reader != null) {
472 this.bufferedReader = null;
473 } catch (IOException e) {
474 logger.debug("Error closing bufferedReader: {}", e.getMessage(), e);