mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-06-21 12:30:23 +02:00
381 lines
13 KiB
Java
381 lines
13 KiB
Java
/* Copyright (C) 2022 Andreas Shimokawa
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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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package nodomain.freeyourgadget.gadgetbridge.service.devices.soflow;
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import android.bluetooth.BluetoothGatt;
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import android.bluetooth.BluetoothGattCharacteristic;
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import android.content.SharedPreferences;
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import android.net.Uri;
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import android.widget.Toast;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.UUID;
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import nodomain.freeyourgadget.gadgetbridge.GBApplication;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventVersionInfo;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.model.Alarm;
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import nodomain.freeyourgadget.gadgetbridge.model.CalendarEventSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.CallSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.CannedMessagesSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.MusicSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.MusicStateSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.NotificationSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.WeatherSpec;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.AbstractBTLEDeviceSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.GattService;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetDeviceStateAction;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.profiles.IntentListener;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.profiles.deviceinfo.DeviceInfoProfile;
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import nodomain.freeyourgadget.gadgetbridge.util.CryptoUtils;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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public class SoFlowSupport extends AbstractBTLEDeviceSupport {
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public static final UUID UUID_CHARACTERISICS_NOTIFICATION = UUID.fromString("60000002-0000-1000-8000-00805f9b34fb");
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public static final UUID UUID_CHARACTERISICS_WRITE = UUID.fromString("60000003-0000-1000-8000-00805f9b34fb");
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public static final byte[] COMMAND_REQUEST_SESSION = new byte[]{0x06, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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public static final byte[] COMMAND_REQUEST_LOCK = new byte[]{0x05, 0x0e, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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public static final byte[] COMMAND_LOCK = new byte[]{0x05, 0x0c, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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public static final byte[] COMMAND_UNLOCK = new byte[]{0x05, 0x01, 0x06, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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public static final byte[] COMMAND_SET_LIGHT = new byte[]{0x05, 0x47, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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private static final Logger LOG = LoggerFactory.getLogger(SoFlowSupport.class);
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private final DeviceInfoProfile<SoFlowSupport> deviceInfoProfile;
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private final GBDeviceEventVersionInfo versionCmd = new GBDeviceEventVersionInfo();
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private byte[] aesKey;
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private final byte[] session = new byte[]{0, 0, 0, 0};
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public SoFlowSupport() {
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super(LOG);
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addSupportedService(GattService.UUID_SERVICE_GENERIC_ACCESS);
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addSupportedService(GattService.UUID_SERVICE_GENERIC_ATTRIBUTE);
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addSupportedService(GattService.UUID_SERVICE_DEVICE_INFORMATION);
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addSupportedService(GattService.UUID_SERVICE_BATTERY_SERVICE);
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addSupportedService(UUID.fromString("60000001-0000-1000-8000-00805f9b34fb"));
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deviceInfoProfile = new DeviceInfoProfile<>(this);
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IntentListener mListener = intent -> {
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String s = intent.getAction();
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if (DeviceInfoProfile.ACTION_DEVICE_INFO.equals(s)) {
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handleDeviceInfo(intent.getParcelableExtra(DeviceInfoProfile.EXTRA_DEVICE_INFO));
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}
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};
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deviceInfoProfile.addListener(mListener);
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addSupportedProfile(deviceInfoProfile);
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}
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@Override
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protected TransactionBuilder initializeDevice(TransactionBuilder builder) {
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aesKey = getSecretKey();
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builder.add(new SetDeviceStateAction(getDevice(), GBDevice.State.INITIALIZING, getContext()));
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requestDeviceInfo(builder);
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builder.notify(getCharacteristic(UUID_CHARACTERISICS_NOTIFICATION), true);
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writeEncrypted(builder, COMMAND_REQUEST_SESSION);
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setInitialized(builder);
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return builder;
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}
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private void requestDeviceInfo(TransactionBuilder builder) {
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LOG.debug("Requesting Device Info!");
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deviceInfoProfile.requestDeviceInfo(builder);
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}
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private void setInitialized(TransactionBuilder builder) {
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builder.add(new SetDeviceStateAction(getDevice(), GBDevice.State.INITIALIZED, getContext()));
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}
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private void writeEncrypted(TransactionBuilder builder, byte[] data) {
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try {
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LOG.debug("will encrypt " + GB.hexdump(data));
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builder.write(getCharacteristic(UUID_CHARACTERISICS_WRITE), CryptoUtils.encryptAES(data, aesKey));
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} catch (Exception e) {
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LOG.error("error while encrypting data");
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}
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}
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@Override
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public boolean useAutoConnect() {
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return false;
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}
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private void handleDeviceInfo(nodomain.freeyourgadget.gadgetbridge.service.btle.profiles.deviceinfo.DeviceInfo info) {
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LOG.warn("Device info: " + info);
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versionCmd.hwVersion = info.getHardwareRevision();
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versionCmd.fwVersion = info.getFirmwareRevision();
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handleGBDeviceEvent(versionCmd);
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}
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protected byte[] getSecretKey() {
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byte[] authKeyBytes;
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SharedPreferences sharedPrefs = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress());
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String authKey = sharedPrefs.getString("authkey", null);
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if (authKey != null && !authKey.isEmpty()) {
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authKey = authKey.trim();
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if (authKey.length() == 34 && authKey.startsWith("0x")) {
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authKeyBytes = GB.hexStringToByteArray(authKey.substring(2));
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} else if (authKey.length() == 32) {
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authKeyBytes = GB.hexStringToByteArray(authKey);
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} else {
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return null;
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}
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return authKeyBytes;
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}
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return null;
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}
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@Override
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public boolean onCharacteristicChanged(BluetoothGatt gatt,
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BluetoothGattCharacteristic characteristic) {
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if (super.onCharacteristicChanged(gatt, characteristic)) {
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return true;
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}
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UUID characteristicUUID = characteristic.getUuid();
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if (UUID_CHARACTERISICS_NOTIFICATION.equals(characteristicUUID)) {
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try {
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byte[] data = CryptoUtils.decryptAES(characteristic.getValue(), aesKey);
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if (data[0] == 0x06 && data[1] == 0x01 && data[2] == 0x07) {
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session[0] = data[3];
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session[1] = data[4];
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session[2] = data[5];
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session[3] = data[6];
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LOG.info("Got session");
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COMMAND_LOCK[4] = session[0];
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COMMAND_LOCK[5] = session[1];
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COMMAND_LOCK[6] = session[2];
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COMMAND_LOCK[7] = session[3];
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COMMAND_REQUEST_LOCK[4] = session[0];
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COMMAND_REQUEST_LOCK[5] = session[1];
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COMMAND_REQUEST_LOCK[6] = session[2];
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COMMAND_REQUEST_LOCK[7] = session[3];
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COMMAND_SET_LIGHT[4] = session[0];
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COMMAND_SET_LIGHT[5] = session[1];
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COMMAND_SET_LIGHT[6] = session[2];
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COMMAND_SET_LIGHT[7] = session[3];
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COMMAND_UNLOCK[9] = session[0];
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COMMAND_UNLOCK[10] = session[1];
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COMMAND_UNLOCK[11] = session[2];
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COMMAND_UNLOCK[12] = session[3];
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}
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else {
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GB.toast(GB.hexdump(data),5,1);
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}
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} catch (Exception e) {
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LOG.error("error while decrypting");
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}
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return true;
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}
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LOG.info("Unhandled characteristic changed: " + characteristicUUID);
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return false;
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}
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@Override
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public void onSendConfiguration(String config) {
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TransactionBuilder builder;
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try {
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builder = performInitialized("Sending configuration for option: " + config);
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if ("lock".equals(config)) {
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SharedPreferences sharedPrefs = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress());
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boolean lock = sharedPrefs.getBoolean("lock", false);
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if (lock) {
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writeEncrypted(builder, COMMAND_LOCK);
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} else {
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writeEncrypted(builder, COMMAND_UNLOCK);
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}
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}
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builder.queue(getQueue());
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} catch (IOException e) {
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GB.toast("Error setting configuration", Toast.LENGTH_LONG, GB.ERROR, e);
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}
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}
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@Override
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public void onNotification(NotificationSpec notificationSpec) {
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}
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@Override
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public void onDeleteNotification(int id) {
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}
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@Override
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public void onSetTime() {
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}
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@Override
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public void onSetAlarms(ArrayList<? extends Alarm> alarms) {
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}
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@Override
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public void onSetCallState(CallSpec callSpec) {
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}
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@Override
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public void onSetCannedMessages(CannedMessagesSpec cannedMessagesSpec) {
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}
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@Override
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public void onSetMusicState(MusicStateSpec stateSpec) {
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}
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@Override
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public void onSetMusicInfo(MusicSpec musicSpec) {
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}
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@Override
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public void onEnableRealtimeSteps(boolean enable) {
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}
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@Override
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public void onInstallApp(Uri uri) {
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}
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@Override
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public void onAppInfoReq() {
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}
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@Override
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public void onAppStart(UUID uuid, boolean start) {
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}
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@Override
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public void onAppDelete(UUID uuid) {
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}
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@Override
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public void onAppConfiguration(UUID appUuid, String config, Integer id) {
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}
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@Override
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public void onAppReorder(UUID[] uuids) {
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}
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@Override
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public void onFetchRecordedData(int dataTypes) {
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}
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@Override
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public void onReset(int flags) {
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}
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@Override
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public void onHeartRateTest() {
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}
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@Override
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public void onEnableRealtimeHeartRateMeasurement(boolean enable) {
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}
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@Override
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public void onFindDevice(boolean start) {
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}
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@Override
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public void onSetConstantVibration(int integer) {
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}
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@Override
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public void onScreenshotReq() {
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}
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@Override
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public void onEnableHeartRateSleepSupport(boolean enable) {
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}
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@Override
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public void onSetHeartRateMeasurementInterval(int seconds) {
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}
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@Override
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public void onAddCalendarEvent(CalendarEventSpec calendarEventSpec) {
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}
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@Override
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public void onDeleteCalendarEvent(byte type, long id) {
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}
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@Override
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public boolean onCharacteristicRead(BluetoothGatt gatt,
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BluetoothGattCharacteristic characteristic, int status) {
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if (super.onCharacteristicRead(gatt, characteristic, status)) {
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return true;
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}
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UUID characteristicUUID = characteristic.getUuid();
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LOG.info("Unhandled characteristic read: " + characteristicUUID);
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return false;
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}
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@Override
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public void onReadConfiguration(String config) {
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}
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@Override
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public void onTestNewFunction() {
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TransactionBuilder builder;
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try {
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builder = performInitialized("request unknown");
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writeEncrypted(builder,COMMAND_REQUEST_LOCK);
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builder.queue(getQueue());
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} catch (IOException e) {
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GB.toast("Error setting configuration", Toast.LENGTH_LONG, GB.ERROR, e);
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}
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}
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@Override
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public void onSendWeather(WeatherSpec weatherSpec) {
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}
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}
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