mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-06-02 03:16:07 +02:00
258 lines
12 KiB
Java
258 lines
12 KiB
Java
/* Copyright (C) 2017-2021 Andreas Shimokawa, Carsten Pfeiffer, Daniele
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Gobbetti, Petr Vaněk
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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.huami.operations;
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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.widget.Toast;
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import androidx.annotation.CallSuper;
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import androidx.annotation.NonNull;
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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.text.DateFormat;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import java.util.UUID;
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import java.util.concurrent.TimeUnit;
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import nodomain.freeyourgadget.gadgetbridge.GBApplication;
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import nodomain.freeyourgadget.gadgetbridge.Logging;
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import nodomain.freeyourgadget.gadgetbridge.R;
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import nodomain.freeyourgadget.gadgetbridge.devices.huami.HuamiService;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.actions.AbstractGattListenerWriteAction;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetDeviceBusyAction;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.AbstractHuamiOperation;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.Huami2021Support;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.HuamiSupport;
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import nodomain.freeyourgadget.gadgetbridge.util.ArrayUtils;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
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/**
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* An operation that fetches activity data. For every fetch, a new operation must
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* be created, i.e. an operation may not be reused for multiple fetches.
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*/
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public abstract class AbstractFetchOperation extends AbstractHuamiOperation {
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private static final Logger LOG = LoggerFactory.getLogger(AbstractFetchOperation.class);
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protected byte lastPacketCounter;
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int fetchCount;
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protected BluetoothGattCharacteristic characteristicActivityData;
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protected BluetoothGattCharacteristic characteristicFetch;
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Calendar startTimestamp;
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int expectedDataLength = 0;
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public AbstractFetchOperation(HuamiSupport support) {
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super(support);
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}
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@Override
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protected void enableNeededNotifications(TransactionBuilder builder, boolean enable) {
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if (!enable) {
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// dynamically enabled, but always disabled on finish
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builder.notify(characteristicFetch, enable);
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builder.notify(characteristicActivityData, enable);
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}
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}
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@Override
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protected void doPerform() throws IOException {
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startFetching();
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}
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protected void startFetching() throws IOException {
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lastPacketCounter = -1;
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TransactionBuilder builder = performInitialized(getName());
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if (fetchCount == 0) {
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builder.add(new SetDeviceBusyAction(getDevice(), getContext().getString(R.string.busy_task_fetch_activity_data), getContext()));
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}
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fetchCount++;
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// TODO: this probably returns null when device is not connected/initialized yet!
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characteristicActivityData = getCharacteristic(HuamiService.UUID_CHARACTERISTIC_5_ACTIVITY_DATA);
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builder.notify(characteristicActivityData, false);
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characteristicFetch = getCharacteristic(HuamiService.UUID_UNKNOWN_CHARACTERISTIC4);
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builder.notify(characteristicFetch, true);
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startFetching(builder);
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builder.queue(getQueue());
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}
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protected abstract void startFetching(TransactionBuilder builder);
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protected abstract String getLastSyncTimeKey();
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@Override
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public boolean onCharacteristicChanged(BluetoothGatt gatt,
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BluetoothGattCharacteristic characteristic) {
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UUID characteristicUUID = characteristic.getUuid();
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if (HuamiService.UUID_CHARACTERISTIC_5_ACTIVITY_DATA.equals(characteristicUUID)) {
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handleActivityNotif(characteristic.getValue());
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return true;
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} else if (HuamiService.UUID_UNKNOWN_CHARACTERISTIC4.equals(characteristicUUID)) {
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handleActivityMetadata(characteristic.getValue());
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return true;
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} else {
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return super.onCharacteristicChanged(gatt, characteristic);
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}
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}
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@CallSuper
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protected void handleActivityFetchFinish(boolean success) {
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GB.updateTransferNotification(null, "", false, 100, getContext());
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operationFinished();
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unsetBusy();
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}
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/**
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* Method to handle the incoming activity data.
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* There are two kind of messages we currently know:
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* - the first one is 11 bytes long and contains metadata (how many bytes to expect, when the data starts, etc.)
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* - the second one is 20 bytes long and contains the actual activity data
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* <p/>
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* The first message type is parsed by this method, for every other length of the value param, bufferActivityData is called.
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*
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* @param value
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*/
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protected abstract void handleActivityNotif(byte[] value);
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protected abstract void bufferActivityData(byte[] value);
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protected void startFetching(TransactionBuilder builder, byte fetchType, GregorianCalendar sinceWhen) {
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final String taskName = StringUtils.ensureNotNull(builder.getTaskName());
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byte[] fetchBytes = BLETypeConversions.join(new byte[]{
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HuamiService.COMMAND_ACTIVITY_DATA_START_DATE,
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fetchType},
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getSupport().getTimeBytes(sinceWhen, TimeUnit.MINUTES));
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builder.add(new AbstractGattListenerWriteAction(getQueue(), characteristicFetch, fetchBytes) {
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@Override
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protected boolean onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
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UUID characteristicUUID = characteristic.getUuid();
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if (HuamiService.UUID_UNKNOWN_CHARACTERISTIC4.equals(characteristicUUID)) {
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byte[] value = characteristic.getValue();
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if (ArrayUtils.equals(value, HuamiService.RESPONSE_ACTIVITY_DATA_START_DATE_SUCCESS, 0)) {
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handleActivityMetadata(value);
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TransactionBuilder newBuilder = createTransactionBuilder(taskName + " Step 2");
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newBuilder.notify(characteristicActivityData, true);
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newBuilder.write(characteristicFetch, new byte[]{HuamiService.COMMAND_FETCH_DATA});
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try {
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performImmediately(newBuilder);
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} catch (IOException ex) {
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GB.toast(getContext(), "Error fetching debug logs: " + ex.getMessage(), Toast.LENGTH_LONG, GB.ERROR, ex);
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}
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return true;
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} else {
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handleActivityMetadata(value);
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}
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}
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return false;
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}
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});
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}
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private void handleActivityMetadata(byte[] value) {
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// it's 16 on the MB7, with a 0 at the end
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if (value.length == 15 || (value.length == 16 && value[15] == 0x00)) {
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// first two bytes are whether our request was accepted
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if (ArrayUtils.equals(value, HuamiService.RESPONSE_ACTIVITY_DATA_START_DATE_SUCCESS, 0)) {
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// the third byte (0x01 on success) = ?
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// the 4th - 7th bytes represent the number of bytes/packets to expect, excluding the counter bytes
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expectedDataLength = BLETypeConversions.toUint32(Arrays.copyOfRange(value, 3, 7));
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// last 8 bytes are the start date
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Calendar startTimestamp = getSupport().fromTimeBytes(Arrays.copyOfRange(value, 7, value.length));
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setStartTimestamp(startTimestamp);
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LOG.info("Will transfer {} packets since {}", expectedDataLength, startTimestamp.getTime());
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GB.updateTransferNotification(getContext().getString(R.string.busy_task_fetch_activity_data),
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getContext().getString(R.string.FetchActivityOperation_about_to_transfer_since,
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DateFormat.getDateTimeInstance().format(startTimestamp.getTime())), true, 0, getContext());
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} else {
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LOG.warn("Unexpected activity metadata: {}", Logging.formatBytes(value));
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handleActivityFetchFinish(false);
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}
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} else if (ArrayUtils.startsWith(value, HuamiService.RESPONSE_FINISH_SUCCESS)) {
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if (value.length == 3) {
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// older Huami devices, just finish
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handleActivityFetchFinish(true);
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} else if (value.length == 7 && getSupport() instanceof Huami2021Support) {
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// TODO: What do the extra 4 bytes mean?
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try {
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// not sure why we need to send this (it's acknowledging the data?) but it will get stuck otherwise
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final TransactionBuilder builder = performInitialized(getName() + " end");
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builder.write(characteristicFetch, new byte[]{HuamiService.COMMAND_ACK_ACTIVITY_DATA, 0x09});
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builder.queue(getQueue());
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} catch (final IOException e) {
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LOG.error("Ending failed", e);
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handleActivityFetchFinish(false);
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return;
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}
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handleActivityFetchFinish(true);
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} else {
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LOG.warn("Unexpected activity metadata finish success: {}", Logging.formatBytes(value));
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handleActivityFetchFinish(false);
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}
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} else if (Arrays.equals(HuamiService.RESPONSE_ACK_SUCCESS, value) && getSupport() instanceof Huami2021Support) {
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// ignore, this is just the reply to the COMMAND_ACK_ACTIVITY_DATA
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LOG.info("Got reply to COMMAND_ACK_ACTIVITY_DATA");
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} else {
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LOG.warn("Unexpected activity metadata: {}", Logging.formatBytes(value));
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handleActivityFetchFinish(false);
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}
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}
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private void setStartTimestamp(Calendar startTimestamp) {
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this.startTimestamp = startTimestamp;
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}
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Calendar getLastStartTimestamp() {
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return startTimestamp;
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}
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void saveLastSyncTimestamp(@NonNull GregorianCalendar timestamp) {
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SharedPreferences.Editor editor = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress()).edit();
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editor.putLong(getLastSyncTimeKey(), timestamp.getTimeInMillis());
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editor.apply();
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}
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protected GregorianCalendar getLastSuccessfulSyncTime() {
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long timeStampMillis = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress()).getLong(getLastSyncTimeKey(), 0);
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if (timeStampMillis != 0) {
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GregorianCalendar calendar = BLETypeConversions.createCalendar();
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calendar.setTimeInMillis(timeStampMillis);
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return calendar;
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}
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GregorianCalendar calendar = BLETypeConversions.createCalendar();
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calendar.add(Calendar.DAY_OF_MONTH, -100);
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return calendar;
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}
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}
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