2 * Copyright (c) 2010-2020 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.miio.internal.robot;
15 import java.io.ByteArrayOutputStream;
17 import java.io.FileInputStream;
18 import java.io.IOException;
19 import java.io.InputStream;
20 import java.io.PrintWriter;
21 import java.io.StringWriter;
22 import java.security.MessageDigest;
23 import java.security.NoSuchAlgorithmException;
24 import java.util.ArrayList;
25 import java.util.Arrays;
26 import java.util.HashMap;
28 import java.util.Map.Entry;
29 import java.util.zip.GZIPInputStream;
31 import org.eclipse.jdt.annotation.NonNullByDefault;
32 import org.eclipse.jdt.annotation.Nullable;
33 import org.openhab.binding.miio.internal.Utils;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
38 * The {@link RRMapFileParser} is used to parse the RR map file format created by Xiaomi / RockRobo vacuum
40 * @author Marcel Verpaalen - Initial contribution
43 public class RRMapFileParser {
44 public static final int CHARGER = 1;
45 public static final int IMAGE = 2;
46 public static final int PATH = 3;
47 public static final int GOTO_PATH = 4;
48 public static final int GOTO_PREDICTED_PATH = 5;
49 public static final int CURRENTLY_CLEANED_ZONES = 6;
50 public static final int GOTO_TARGET = 7;
51 public static final int ROBOT_POSITION = 8;
52 public static final int NO_GO_AREAS = 9;
53 public static final int VIRTUAL_WALLS = 10;
54 public static final int BLOCKS = 11;
55 public static final int MFBZS_AREA = 12;
56 public static final int OBSTACLES = 13;
57 public static final int IGNORED_OBSTACLES = 14;
58 public static final int OBSTACLES2 = 15;
59 public static final int IGNORED_OBSTACLES2 = 16;
60 public static final int CARPET_MAP = 17;
62 public static final int DIGEST = 1024;
63 public static final int HEADER = 0x7272;
65 public static final String PATH_POINT_LENGTH = "pointLength";
66 public static final String PATH_POINT_SIZE = "pointSize";
67 public static final String PATH_ANGLE = "angle";
69 private byte[] image = new byte[] { 0 };
70 private final int majorVersion;
71 private final int minorVersion;
72 private final int mapIndex;
73 private final int mapSequence;
74 private boolean isValid;
76 private int imgHeight;
78 private int imageSize;
87 private float gotoX = 0;
88 private float gotoY = 0;
89 private Map<Integer, ArrayList<float[]>> paths = new HashMap<>();
90 private Map<Integer, Map<String, Integer>> pathsDetails = new HashMap<>();
91 private Map<Integer, ArrayList<float[]>> areas = new HashMap<>();
92 private ArrayList<float[]> walls = new ArrayList<>();
93 private ArrayList<float[]> zones = new ArrayList<>();
94 private Map<Integer, ArrayList<int[]>> obstacles = new HashMap<>();
95 private byte[] blocks = new byte[0];
96 private int[] carpetMap = {};
98 private final Logger logger = LoggerFactory.getLogger(RRMapFileParser.class);
100 public RRMapFileParser(byte[] raw) {
101 boolean printBlockDetails = false;
102 int mapHeaderLength = getUInt16(raw, 0x02);
103 int mapDataLength = getUInt32LE(raw, 0x04);
104 this.majorVersion = getUInt16(raw, 0x08);
105 this.minorVersion = getUInt16(raw, 0x0A);
106 this.mapIndex = getUInt32LE(raw, 0x0C);
107 this.mapSequence = getUInt32LE(raw, 0x10);
109 int blockStartPos = getUInt16(raw, 0x02); // main header length
110 while (blockStartPos < raw.length) {
111 int blockHeaderLength = getUInt16(raw, blockStartPos + 0x02);
112 byte[] header = getBytes(raw, blockStartPos, blockHeaderLength);
113 int blocktype = getUInt16(header, 0x00);
114 int blockDataLength = getUInt32LE(header, 0x04);
115 int blockDataStart = blockStartPos + blockHeaderLength;
116 byte[] data = getBytes(raw, blockDataStart, blockDataLength);
120 this.chargerX = getUInt32LE(raw, blockStartPos + 0x08);
121 this.chargerY = getUInt32LE(raw, blockStartPos + 0x0C);
124 this.imageSize = blockDataLength;// (getUInt32LE(raw, blockStartPos + 0x04));
125 if (blockHeaderLength > 0x1C) {
126 logger.debug("block 2 unknown value @pos 8: {}", getUInt32LE(header, 0x08));
128 this.top = getUInt32LE(header, blockHeaderLength - 16);
129 this.left = getUInt32LE(header, blockHeaderLength - 12);
130 this.imgHeight = (getUInt32LE(header, blockHeaderLength - 8));
131 this.imgWidth = getUInt32LE(header, blockHeaderLength - 4);
135 this.roboX = getUInt32LE(data, 0x00);
136 this.roboY = getUInt32LE(data, 0x04);
137 if (blockDataLength > 8) { // model S6
138 this.roboA = getUInt32LE(data, 0x08);
143 case GOTO_PREDICTED_PATH:
144 ArrayList<float[]> path = new ArrayList<float[]>();
145 Map<String, Integer> detail = new HashMap<String, Integer>();
146 int pairs = getUInt32LE(header, 0x04) / 4;
147 detail.put(PATH_POINT_LENGTH, getUInt32LE(header, 0x08));
148 detail.put(PATH_POINT_SIZE, getUInt32LE(header, 0x0C));
149 detail.put(PATH_ANGLE, getUInt32LE(header, 0x10));
150 for (int pathpair = 0; pathpair < pairs; pathpair++) {
151 float x = (getUInt16(getBytes(raw, blockDataStart + pathpair * 4, 2)));
152 float y = getUInt16(getBytes(raw, blockDataStart + pathpair * 4 + 2, 2));
153 path.add(new float[] { x, y });
155 paths.put(blocktype, path);
156 pathsDetails.put(blocktype, detail);
158 case CURRENTLY_CLEANED_ZONES:
159 int zonePairs = getUInt16(header, 0x08);
160 for (int zonePair = 0; zonePair < zonePairs; zonePair++) {
161 float x0 = (getUInt16(raw, blockDataStart + zonePair * 8));
162 float y0 = getUInt16(raw, blockDataStart + zonePair * 8 + 2);
163 float x1 = (getUInt16(raw, blockDataStart + zonePair * 8 + 4));
164 float y1 = getUInt16(raw, blockDataStart + zonePair * 8 + 6);
165 zones.add(new float[] { x0, y0, x1, y1 });
169 this.gotoX = getUInt16(data, 0x00);
170 this.gotoY = getUInt16(data, 0x02);
173 isValid = Arrays.equals(data, sha1Hash(getBytes(raw, 0, mapHeaderLength + mapDataLength - 20)));
176 int wallPairs = getUInt16(header, 0x08);
177 for (int wallPair = 0; wallPair < wallPairs; wallPair++) {
178 float x0 = (getUInt16(raw, blockDataStart + wallPair * 8));
179 float y0 = getUInt16(raw, blockDataStart + wallPair * 8 + 2);
180 float x1 = (getUInt16(raw, blockDataStart + wallPair * 8 + 4));
181 float y1 = getUInt16(raw, blockDataStart + wallPair * 8 + 6);
182 walls.add(new float[] { x0, y0, x1, y1 });
187 int areaPairs = getUInt16(header, 0x08);
188 ArrayList<float[]> area = new ArrayList<float[]>();
189 for (int areaPair = 0; areaPair < areaPairs; areaPair++) {
190 float x0 = (getUInt16(raw, blockDataStart + areaPair * 16));
191 float y0 = getUInt16(raw, blockDataStart + areaPair * 16 + 2);
192 float x1 = (getUInt16(raw, blockDataStart + areaPair * 16 + 4));
193 float y1 = getUInt16(raw, blockDataStart + areaPair * 16 + 6);
194 float x2 = (getUInt16(raw, blockDataStart + areaPair * 16 + 8));
195 float y2 = getUInt16(raw, blockDataStart + areaPair * 16 + 10);
196 float x3 = (getUInt16(raw, blockDataStart + areaPair * 16 + 12));
197 float y3 = getUInt16(raw, blockDataStart + areaPair * 16 + 14);
198 area.add(new float[] { x0, y0, x1, y1, x2, y2, x3, y3 });
200 areas.put(Integer.valueOf(blocktype & 0xFF), area);
203 case IGNORED_OBSTACLES:
204 int obstaclePairs = getUInt16(header, 0x08);
205 ArrayList<int[]> obstacle = new ArrayList<>();
206 for (int obstaclePair = 0; obstaclePair < obstaclePairs; obstaclePair++) {
207 int x0 = getUInt16(data, obstaclePair * 5 + 0);
208 int y0 = getUInt16(data, obstaclePair * 5 + 2);
209 int u = data[obstaclePair * 5 + 0] & 0xFF;
210 obstacle.add(new int[] { x0, y0, u });
212 obstacles.put(Integer.valueOf(blocktype & 0xFF), obstacle);
215 int obstacle2Pairs = getUInt16(header, 0x08);
216 if (obstacle2Pairs == 0) {
219 int obstacleDataLenght = blockDataLength / obstacle2Pairs;
220 logger.trace("block 15 records lenght: {}", obstacleDataLenght);
221 ArrayList<int[]> obstacle2 = new ArrayList<>();
222 for (int obstaclePair = 0; obstaclePair < obstacle2Pairs; obstaclePair++) {
223 int x0 = getUInt16(data, obstaclePair * obstacleDataLenght + 0);
224 int y0 = getUInt16(data, obstaclePair * obstacleDataLenght + 2);
225 int u0 = getUInt16(data, obstaclePair * obstacleDataLenght + 4);
226 int u1 = getUInt16(data, obstaclePair * obstacleDataLenght + 6);
227 int u2 = getUInt32LE(data, obstaclePair * obstacleDataLenght + 8);
228 if (obstacleDataLenght == 28) {
229 if ((data[obstaclePair * obstacleDataLenght + 12] & 0xFF) == 0) {
230 logger.trace("obstacle with photo: No text");
232 byte[] txt = getBytes(data, obstaclePair * obstacleDataLenght + 12, 16);
233 logger.trace("obstacle with photo: {}", new String(txt));
235 obstacle2.add(new int[] { x0, y0, u0, u1, u2 });
237 int u3 = getUInt32LE(data, obstaclePair * obstacleDataLenght + 12);
238 obstacle2.add(new int[] { x0, y0, u0, u1, u2, u3 });
239 logger.trace("obstacle without photo.");
242 obstacles.put(Integer.valueOf(blocktype & 0xFF), obstacle2);
244 case IGNORED_OBSTACLES2:
245 int ignoredObstaclePairs = getUInt16(header, 0x08);
246 ArrayList<int[]> ignoredObstacle = new ArrayList<>();
247 for (int obstaclePair = 0; obstaclePair < ignoredObstaclePairs; obstaclePair++) {
248 int x0 = getUInt16(data, obstaclePair * 6 + 0);
249 int y0 = getUInt16(data, obstaclePair * 6 + 2);
250 int u = getUInt16(data, obstaclePair * 6 + 4);
251 ignoredObstacle.add(new int[] { x0, y0, u });
253 obstacles.put(Integer.valueOf(blocktype & 0xFF), ignoredObstacle);
256 carpetMap = new int[blockDataLength];
257 for (int carpetNode = 0; carpetNode < blockDataLength; carpetNode++) {
258 carpetMap[carpetNode] = data[carpetNode] & 0xFF;
262 int blocksPairs = getUInt16(header, 0x08);
263 blocks = getBytes(data, 0, blocksPairs);
266 logger.info("Unknown blocktype (pls report to author)");
267 printBlockDetails = true;
269 if (logger.isTraceEnabled() || printBlockDetails) {
270 logger.debug("Blocktype: {}", Integer.toString(blocktype));
271 logger.debug("Header len: {} data len: {} ", Integer.toString(blockHeaderLength),
272 Integer.toString(blockDataLength));
273 logger.debug("H: {}", Utils.getSpacedHex(header));
274 if (blockDataLength > 0) {
275 logger.debug("D: {}", (blockDataLength < 60 ? Utils.getSpacedHex(data)
276 : Utils.getSpacedHex(getBytes(data, 0, 60))));
278 printBlockDetails = false;
280 blockStartPos = blockStartPos + blockDataLength + (header[2] & 0xFF);
284 public static byte[] readRRMapFile(File file) throws IOException {
285 return readRRMapFile(new FileInputStream(file));
288 public static byte[] readRRMapFile(InputStream is) throws IOException {
289 ByteArrayOutputStream baos = new ByteArrayOutputStream();
290 try (GZIPInputStream in = new GZIPInputStream(is)) {
292 byte[] buf = new byte[bufsize];
294 readbytes = in.read(buf);
295 while (readbytes != -1) {
296 baos.write(buf, 0, readbytes);
297 readbytes = in.read(buf);
300 return baos.toByteArray();
304 private byte[] getBytes(byte[] raw, int pos, int len) {
305 return java.util.Arrays.copyOfRange(raw, pos, pos + len);
308 private int getUInt32LE(byte[] bytes, int pos) {
309 int value = bytes[0 + pos] & 0xFF;
310 value |= (bytes[1 + pos] << 8) & 0xFFFF;
311 value |= (bytes[2 + pos] << 16) & 0xFFFFFF;
312 value |= (bytes[3 + pos] << 24) & 0xFFFFFFFF;
316 private int getUInt16(byte[] bytes) {
317 return getUInt16(bytes, 0);
320 private int getUInt16(byte[] bytes, int pos) {
321 int value = bytes[0 + pos] & 0xFF;
322 value |= (bytes[1 + pos] << 8) & 0xFFFF;
327 public String toString() {
328 StringWriter sw = new StringWriter();
329 PrintWriter pw = new PrintWriter(sw);
330 pw.printf("RR Map:\tMajor Version: %d Minor version: %d Map Index: %d Map Sequence: %d\r\n", majorVersion,
331 minorVersion, mapIndex, mapSequence);
332 pw.printf("Image:\tsize: %9d\ttop: %9d\tleft: %9d height: %9d width: %9d\r\n", imageSize, top, left, imgHeight,
334 pw.printf("Charger pos:\tX: %.0f\tY: %.0f\r\n", getChargerX(), getChargerY());
335 pw.printf("Robo pos:\tX: %.0f\tY: %.0f\tAngle: %d\r\n", getRoboX(), getRoboY(), getRoboA());
336 pw.printf("Goto:\tX: %.0f\tY: %.0f\r\n", getGotoX(), getGotoY());
337 for (Entry<Integer, ArrayList<float[]>> area : areas.entrySet()) {
338 pw.print(area.getKey() == NO_GO_AREAS ? "No Go zones:\t" : "MFBZS zones:\t");
339 pw.printf("%d\r\n", area.getValue().size());
340 printAreaDetails(area.getValue(), pw);
342 pw.printf("Walls:\t%d\r\n", walls.size());
343 printAreaDetails(walls, pw);
344 pw.printf("Zones:\t%d\r\n", zones.size());
345 printAreaDetails(zones, pw);
346 for (Entry<Integer, ArrayList<int[]>> obstacleType : obstacles.entrySet()) {
347 pw.printf("Obstacles Type (%d):\t%d\r\n", obstacleType.getKey(), obstacleType.getValue().size());
348 printObstacleDetails(obstacleType.getValue(), pw);
350 pw.printf("Blocks:\t%d\r\n", blocks.length);
352 for (Entry<Integer, Map<String, Integer>> pathDetail : pathsDetails.entrySet()) {
353 pw.printf("\r\nPath type:\t%d", pathDetail.getKey());
354 for (String detail : pathDetail.getValue().keySet()) {
355 pw.printf(" %s: %d", detail, pathDetail.getValue().get(detail));
360 return sw.toString();
363 private void printAreaDetails(@Nullable ArrayList<float[]> areas, PrintWriter pw) {
368 areas.forEach(area -> {
369 pw.print("\tArea coordinates:");
370 for (int i = 0; i < area.length; i++) {
371 pw.printf("\t%.0f", area[i]);
377 private void printObstacleDetails(@Nullable ArrayList<int[]> obstacle, PrintWriter pw) {
378 if (obstacle == null) {
382 obstacle.forEach(area -> {
383 pw.print("\tObstacle coordinates:");
384 for (int i = 0; i < area.length; i++) {
385 pw.printf("\t%d", area[i]);
392 * Compute SHA-1 hash value for the byte array
394 * @param inBytes ByteArray to be hashed
397 public static byte[] sha1Hash(byte[] inBytes) {
399 MessageDigest md = MessageDigest.getInstance("SHA-1");
400 return md.digest(inBytes);
401 } catch (NoSuchAlgorithmException e) {
402 return new byte[] { 0x00 };
406 public int getMajorVersion() {
410 public int getMinorVersion() {
414 public int getMapIndex() {
418 public int getMapSequence() {
422 public boolean isValid() {
426 public byte[] getImage() {
430 public int getImageSize() {
434 public int getImgHeight() {
438 public int getImgWidth() {
442 public int getTop() {
446 public int getLeft() {
450 public ArrayList<float[]> getZones() {
454 public float getRoboX() {
458 public float getRoboY() {
462 public float getChargerX() {
466 public float getChargerY() {
470 public float getGotoX() {
474 public float getGotoY() {
478 public int getRoboA() {
482 public Map<Integer, ArrayList<float[]>> getPaths() {
486 public Map<Integer, Map<String, Integer>> getPathsDetails() {
490 public ArrayList<float[]> getWalls() {
494 public Map<Integer, ArrayList<float[]>> getAreas() {
498 public Map<Integer, ArrayList<int[]>> getObstacles() {
502 public byte[] getBlocks() {
506 public final int[] getCarpetMap() {