2020-01-09 10:44:32 +01:00
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/* Copyright (C) 2015-2020 0nse, Andreas Shimokawa, Carsten Pfeiffer,
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2017-03-10 14:53:19 +01:00
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Daniele Gobbetti, Sergey Trofimov
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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2015-08-03 23:09:49 +02:00
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package nodomain.freeyourgadget.gadgetbridge.devices.miband;
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2015-04-19 02:37:29 +02:00
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2016-02-29 20:54:39 +01:00
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import java.util.Arrays;
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2016-02-02 17:33:24 +01:00
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import nodomain.freeyourgadget.gadgetbridge.model.ActivityUser;
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2015-10-18 20:54:22 +02:00
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import nodomain.freeyourgadget.gadgetbridge.service.devices.miband.DeviceInfo;
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2015-08-17 22:43:42 +02:00
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import nodomain.freeyourgadget.gadgetbridge.util.CheckSums;
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2015-04-19 02:37:29 +02:00
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public class UserInfo {
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2015-11-23 23:04:46 +01:00
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private final String btAddress;
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private final String alias;
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private final int gender;
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private final int age;
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private final int height;
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private final int weight;
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private final int type;
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2015-04-19 02:37:29 +02:00
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private byte[] data = new byte[20];
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/**
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* Creates a default user info.
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2015-04-19 11:28:03 +02:00
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*
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2015-04-19 02:37:29 +02:00
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* @param btAddress the address of the MI Band to connect to.
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*/
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public static UserInfo getDefault(String btAddress) {
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2016-02-02 17:33:24 +01:00
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return new UserInfo(btAddress, "1550050550", ActivityUser.defaultUserGender, ActivityUser.defaultUserAge, ActivityUser.defaultUserHeightCm, ActivityUser.defaultUserWeightKg, 0);
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2015-04-19 02:37:29 +02:00
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}
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/**
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* Creates a user info with the given data
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2015-04-19 11:28:03 +02:00
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*
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2015-04-19 02:37:29 +02:00
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* @param address the address of the MI Band to connect to.
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2015-05-07 23:51:03 +02:00
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* @throws IllegalArgumentException when the given values are not valid
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2015-04-19 02:37:29 +02:00
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*/
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2015-05-07 23:51:03 +02:00
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public static UserInfo create(String address, String alias, int gender, int age, int height, int weight, int type) throws IllegalArgumentException {
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2015-05-09 23:13:47 +02:00
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if (address == null || address.length() == 0 || alias == null || alias.length() == 0 || gender < 0 || age <= 0 || weight <= 0 || type < 0) {
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2015-05-07 23:51:03 +02:00
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throw new IllegalArgumentException("Invalid parameters");
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}
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try {
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return new UserInfo(address, alias, gender, age, height, weight, type);
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} catch (Exception ex) {
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throw new IllegalArgumentException("Illegal user info data", ex);
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}
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}
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2015-04-19 02:37:29 +02:00
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2015-05-07 23:51:03 +02:00
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/**
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* Creates a user info with the given data
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*
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* @param address the address of the MI Band to connect to.
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*/
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private UserInfo(String address, String alias, int gender, int age, int height, int weight, int type) {
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2015-04-19 02:37:29 +02:00
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this.btAddress = address;
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this.alias = alias;
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this.gender = gender;
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this.age = age;
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this.height = height;
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this.weight = weight;
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this.type = type;
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2015-10-18 20:54:22 +02:00
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}
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2015-04-19 02:37:29 +02:00
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2015-10-18 20:54:22 +02:00
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private int calculateUidFrom(String alias) {
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2015-12-08 21:48:25 +01:00
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int uid;
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2015-10-18 20:54:22 +02:00
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try {
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uid = Integer.parseInt(alias);
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} catch (NumberFormatException ex) {
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uid = alias.hashCode(); // simple as that
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}
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return uid;
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}
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2015-04-19 02:37:29 +02:00
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2015-10-18 20:54:22 +02:00
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public byte[] getData(DeviceInfo mDeviceInfo) {
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byte[] sequence = new byte[20];
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2015-05-07 01:30:40 +02:00
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int uid = calculateUidFrom(alias);
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2015-10-18 20:54:22 +02:00
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2015-04-19 02:37:29 +02:00
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sequence[0] = (byte) uid;
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sequence[1] = (byte) (uid >>> 8);
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sequence[2] = (byte) (uid >>> 16);
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sequence[3] = (byte) (uid >>> 24);
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sequence[4] = (byte) (gender & 0xff);
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sequence[5] = (byte) (age & 0xff);
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sequence[6] = (byte) (height & 0xff);
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sequence[7] = (byte) (weight & 0xff);
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sequence[8] = (byte) (type & 0xff);
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2015-10-18 20:54:22 +02:00
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int aliasFrom = 9;
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2016-05-15 00:15:31 +02:00
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if (!mDeviceInfo.isMili1()) {
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2015-10-18 20:54:22 +02:00
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sequence[9] = (byte) (mDeviceInfo.feature & 255);
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sequence[10] = (byte) (mDeviceInfo.appearance & 255);
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aliasFrom = 11;
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2015-05-07 01:30:40 +02:00
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}
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2016-02-29 20:54:39 +01:00
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byte[] aliasBytes = alias.substring(0, Math.min(alias.length(), 19 - aliasFrom)).getBytes();
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2015-10-18 20:54:22 +02:00
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System.arraycopy(aliasBytes, 0, sequence, aliasFrom, aliasBytes.length);
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byte[] crcSequence = Arrays.copyOf(sequence, 19);
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sequence[19] = (byte) ((CheckSums.getCRC8(crcSequence) ^ Integer.parseInt(this.btAddress.substring(this.btAddress.length() - 2), 16)) & 0xff);
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2015-05-07 01:30:40 +02:00
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2015-10-18 20:54:22 +02:00
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return sequence;
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2015-04-19 02:37:29 +02:00
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}
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}
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