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mirror of https://codeberg.org/Freeyourgadget/Gadgetbridge synced 2024-11-03 17:02:13 +01:00

Mi Band 8: Activity fetching basics

This commit is contained in:
José Rebelo 2023-10-16 21:36:23 +01:00
parent 4662da3b82
commit 544909a970
8 changed files with 464 additions and 46 deletions

View File

@ -80,6 +80,7 @@ public class XiaomiEncryptedSupport extends XiaomiSupport {
this.characteristicCommandWrite = new XiaomiCharacteristic(this, btCharacteristicCommandWrite, authService);
this.characteristicCommandRead.setEncrypted(true);
this.characteristicActivityData = new XiaomiCharacteristic(this, btCharacteristicActivityData, authService);
this.characteristicActivityData.setHandler(healthService.getActivityFetcher()::addChunk);
this.characteristicCommandRead.setEncrypted(true);
this.characteristicDataUpload = new XiaomiCharacteristic(this, btCharacteristicDataUpload, authService);
this.characteristicCommandRead.setEncrypted(true);

View File

@ -0,0 +1,145 @@
/* Copyright (C) 2023 José Rebelo
This file is part of Gadgetbridge.
Gadgetbridge is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gadgetbridge is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity;
import android.content.Context;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import java.util.Set;
import nodomain.freeyourgadget.gadgetbridge.R;
import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.XiaomiSupport;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.services.XiaomiHealthService;
import nodomain.freeyourgadget.gadgetbridge.util.CheckSums;
import nodomain.freeyourgadget.gadgetbridge.util.GB;
public class XiaomiActivityFileFetcher {
private static final Logger LOG = LoggerFactory.getLogger(XiaomiActivityFileFetcher.class);
private final XiaomiHealthService mHealthService;
private final Queue<List<XiaomiActivityFileId>> mFetchQueue = new LinkedList<>();
private ByteArrayOutputStream mBuffer = null;
private Set<XiaomiActivityFileId> pendingFiles = new HashSet<>();
private boolean isFetching = false;
public XiaomiActivityFileFetcher(final XiaomiHealthService healthService) {
this.mHealthService = healthService;
}
public void addChunk(final byte[] chunk) {
final int total = BLETypeConversions.toUint16(chunk, 0);
final int num = BLETypeConversions.toUint16(chunk, 2);
LOG.debug("Got activity chunk {}/{}", num, total);
if (num == 1) {
if (mBuffer == null) {
mBuffer = new ByteArrayOutputStream();
}
mBuffer.reset();
mBuffer.write(chunk, 4, chunk.length - 4);
}
if (num == total) {
final byte[] data = mBuffer.toByteArray();
mBuffer.reset();
mBuffer = null;
if (data.length < 13) {
LOG.warn("Activity data length of {} is too short", data.length);
// FIXME this may mess up the order.. maybe we should just abort
triggerNextFetch();
return;
}
if (!validChecksum(data)) {
LOG.warn("Invalid activity data checksum");
// FIXME this may mess up the order.. maybe we should just abort
triggerNextFetch();
return;
}
if (data[7] != 0) {
LOG.warn(
"Unexpected activity payload byte {} at position 7 - parsing might fail",
String.format("0x%02X", data[7])
);
}
final byte[] fileIdBytes = Arrays.copyOfRange(data, 0, 7);
final byte[] activityData = Arrays.copyOfRange(data, 8, data.length - 4);
final XiaomiActivityFileId fileId = XiaomiActivityFileId.from(fileIdBytes);
final XiaomiActivityParser activityParser = XiaomiActivityParser.create(fileId);
if (activityParser == null) {
LOG.warn("Failed to find activity parser for {}", fileId);
triggerNextFetch();
return;
}
if (activityParser.parse(fileId, activityData)) {
LOG.debug("Acking recorded data {}", fileId);
//mHealthService.ackRecordedData(fileId);
}
// FIXME only after receiving everything triggerNextFetch();
}
}
public void fetch(final List<XiaomiActivityFileId> fileIds) {
mFetchQueue.add(fileIds);
if (!isFetching) {
// Currently not fetching anything, fetch the next
final XiaomiSupport support = mHealthService.getSupport();
final Context context = support.getContext();
GB.updateTransferNotification(context.getString(R.string.busy_task_fetch_activity_data),"", true, 0, context);
support.getDevice().setBusyTask(context.getString(R.string.busy_task_fetch_activity_data));
triggerNextFetch();
}
}
private void triggerNextFetch() {
final List<XiaomiActivityFileId> fileIds = mFetchQueue.poll();
if (fileIds == null || fileIds.isEmpty()) {
mHealthService.getSupport().getDevice().unsetBusyTask();
GB.updateTransferNotification(null, "", false, 100, mHealthService.getSupport().getContext());
return;
}
mHealthService.requestRecordedData(fileIds);
}
public boolean validChecksum(final byte[] arr) {
final int arrCrc32 = CheckSums.getCRC32(arr, 0, arr.length - 4);
final int expectedCrc32 = BLETypeConversions.toUint32(arr, arr.length - 4);
return arrCrc32 == expectedCrc32;
}
}

View File

@ -0,0 +1,125 @@
/* Copyright (C) 2023 José Rebelo
This file is part of Gadgetbridge.
Gadgetbridge is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gadgetbridge is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity;
import androidx.annotation.NonNull;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Date;
import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
public class XiaomiActivityFileId {
public static final int TYPE_ACTIVITY = 0;
public static final int TYPE_SPORTS = 1;
public static final int TYPE_DETAILS = 0;
public static final int TYPE_SUMMARY = 1;
private final Date timestamp;
private final int timezone;
private final int type;
private final int subtype;
private final int detailType;
private final int version;
public XiaomiActivityFileId(final Date timestamp,
final int timezone,
final int type,
final int subtype,
final int detailType,
final int version) {
this.timestamp = timestamp;
this.timezone = timezone;
this.type = type;
this.subtype = subtype;
this.detailType = detailType;
this.version = version;
}
public Date getTimestamp() {
return timestamp;
}
public int getTimezone() {
return timezone;
}
public int getType() {
return type;
}
public int getSubtype() {
return subtype;
}
public int getDetailType() {
return detailType;
}
public int getVersion() {
return version;
}
public byte[] toBytes() {
final ByteBuffer buf = ByteBuffer.allocate(7).order(ByteOrder.LITTLE_ENDIAN);
buf.putInt((int) (timestamp.getTime() / 1000));
buf.put((byte) timezone);
buf.put((byte) version);
buf.put((byte) (type << 7 | subtype << 2 | detailType));
return buf.array();
}
public static XiaomiActivityFileId from(final byte[] bytes) {
assert bytes.length == 7;
return from(ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN));
}
public static XiaomiActivityFileId from(final ByteBuffer buf) {
final int ts = buf.getInt();
final int tz = buf.get(); // 15 min blocks
final int version = buf.get();
final int flags = buf.get();
// bit 0 is type - 0 activity, 1 sports
final int type = (flags >> 7) & 1;
// bit 1 to 6 bits are subtype
// for activity: activity, sleep, measurements, etc
// for workout: workout type (8 freestyle)
final int subtype = (flags & 127) >> 2;
// bit 6 and 7 - 0 details, 1 summary
final int detailType = flags & 3;
return new XiaomiActivityFileId(new Date(ts * 1000L), tz, version, type, subtype, detailType);
}
@NonNull
@Override
public String toString() {
return getClass().getSimpleName() + "{" +
"timestamp=" + DateTimeUtils.formatIso8601(timestamp) +
", timezone=" + timezone +
", type=" + type +
", subtype=" + subtype +
", detailType=" + detailType +
", version=" + version +
"}";
}
}

View File

@ -16,6 +16,50 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity;
public class XiaomiActivityParser {
import androidx.annotation.Nullable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.XiaomiSupport;
public abstract class XiaomiActivityParser {
private static final Logger LOG = LoggerFactory.getLogger(XiaomiActivityParser.class);
private final XiaomiSupport mSupport;
public XiaomiActivityParser(final XiaomiSupport support) {
this.mSupport = support;
}
public abstract boolean parse(final XiaomiActivityFileId fileId, final byte[] bytes);
public XiaomiSupport getSupport() {
return mSupport;
}
@Nullable
public static XiaomiActivityParser create(final XiaomiActivityFileId fileId) {
switch (fileId.getType()) {
case XiaomiActivityFileId.TYPE_ACTIVITY:
return createForActivity(fileId);
case XiaomiActivityFileId.TYPE_SPORTS:
return createForSports(fileId);
}
LOG.warn("Unknown file type for {}", fileId);
return null;
}
public static XiaomiActivityParser createForActivity(final XiaomiActivityFileId fileId) {
assert fileId.getType() == XiaomiActivityFileId.TYPE_ACTIVITY;
return null;
}
public static XiaomiActivityParser createForSports(final XiaomiActivityFileId fileId) {
assert fileId.getType() == XiaomiActivityFileId.TYPE_SPORTS;
return null;
}
}

View File

@ -52,7 +52,7 @@ public abstract class AbstractXiaomiService {
return false;
}
protected XiaomiSupport getSupport() {
public XiaomiSupport getSupport() {
return mSupport;
}

View File

@ -20,14 +20,18 @@ import android.content.Intent;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import com.google.protobuf.ByteString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import nodomain.freeyourgadget.gadgetbridge.GBApplication;
@ -49,6 +53,8 @@ import nodomain.freeyourgadget.gadgetbridge.proto.xiaomi.XiaomiProto;
import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.XiaomiPreferences;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.XiaomiSupport;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity.XiaomiActivityFileFetcher;
import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity.XiaomiActivityFileId;
import nodomain.freeyourgadget.gadgetbridge.util.GB;
import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
@ -58,8 +64,10 @@ public class XiaomiHealthService extends AbstractXiaomiService {
public static final int COMMAND_TYPE = 8;
private static final int CMD_SET_USER_INFO = 0;
private static final int CMD_ACTIVITY_FETCH_1 = 1;
private static final int CMD_ACTIVITY_FETCH_2 = 2;
private static final int CMD_ACTIVITY_FETCH_TODAY = 1;
private static final int CMD_ACTIVITY_FETCH_PAST = 2;
private static final int CMD_ACTIVITY_FETCH_REQUEST = 3;
private static final int CMD_ACTIVITY_FETCH_ACK = 5;
private static final int CMD_CONFIG_SPO2_GET = 8;
private static final int CMD_CONFIG_SPO2_SET = 9;
private static final int CMD_CONFIG_HEART_RATE_GET = 10;
@ -79,6 +87,8 @@ public class XiaomiHealthService extends AbstractXiaomiService {
private boolean realtimeOneShot = false;
private int previousSteps = -1;
private final XiaomiActivityFileFetcher activityFetcher = new XiaomiActivityFileFetcher(this);
public XiaomiHealthService(final XiaomiSupport support) {
super(support);
}
@ -89,9 +99,9 @@ public class XiaomiHealthService extends AbstractXiaomiService {
case CMD_SET_USER_INFO:
LOG.debug("Got user info set ack, status={}", cmd.getStatus());
return;
case CMD_ACTIVITY_FETCH_1:
case CMD_ACTIVITY_FETCH_2:
handleActivityFetchResponse(cmd.getHealth().getActivityRecordIds().toByteArray());
case CMD_ACTIVITY_FETCH_TODAY:
case CMD_ACTIVITY_FETCH_PAST:
handleActivityFetchResponse(cmd.getSubtype(), cmd.getHealth().getActivityRequestFileIds().toByteArray());
return;
case CMD_CONFIG_SPO2_GET:
handleSpo2Config(cmd.getHealth().getSpo2());
@ -395,62 +405,97 @@ public class XiaomiHealthService extends AbstractXiaomiService {
);
}
public XiaomiActivityFileFetcher getActivityFetcher() {
return activityFetcher;
}
public void onFetchRecordedData(final int dataTypes) {
LOG.debug("Fetch recorded data: {}", dataTypes);
final TransactionBuilder builder = getSupport().createTransactionBuilder("fetch recorded data step 1");
fetchRecordedDataToday();
}
private void fetchRecordedDataToday() {
getSupport().sendCommand(
builder,
"fetch recorded data today",
XiaomiProto.Command.newBuilder()
.setType(COMMAND_TYPE)
.setSubtype(CMD_ACTIVITY_FETCH_1)
.setHealth(XiaomiProto.Health.newBuilder().setActivitySyncRequest1(
// TODO official app sends 0, but doesn't work every time?
XiaomiProto.ActivitySyncRequest1.newBuilder().setUnknown1(1)
.setSubtype(CMD_ACTIVITY_FETCH_TODAY)
.setHealth(XiaomiProto.Health.newBuilder().setActivitySyncRequestToday(
// TODO official app sends 0, but sometimes 1?
XiaomiProto.ActivitySyncRequestToday.newBuilder().setUnknown1(0)
))
.build()
);
// TODO we need to wait for the reply from the previous before sending this one?
//getSupport().sendCommand(
// builder,
// XiaomiProto.Command.newBuilder()
// .setType(COMMAND_TYPE)
// .setSubtype(CMD_ACTIVITY_FETCH_2)
// .build()
//);
builder.queue(getSupport().getQueue());
}
public void handleActivityFetchResponse(final byte[] recordIds) {
private void fetchRecordedDataPast() {
getSupport().sendCommand(
"fetch recorded data past",
XiaomiProto.Command.newBuilder()
.setType(COMMAND_TYPE)
.setSubtype(CMD_ACTIVITY_FETCH_PAST)
.build()
);
}
public void requestRecordedData(final List<XiaomiActivityFileId> fileIds) {
final ByteBuffer buf = ByteBuffer.allocate(7 * fileIds.size()).order(ByteOrder.LITTLE_ENDIAN);
for (final XiaomiActivityFileId fileId : fileIds) {
buf.put(fileId.toBytes());
}
getSupport().sendCommand(
"request recorded data",
XiaomiProto.Command.newBuilder()
.setType(COMMAND_TYPE)
.setSubtype(CMD_ACTIVITY_FETCH_REQUEST)
.setHealth(XiaomiProto.Health.newBuilder().setActivityRequestFileIds(
ByteString.copyFrom(buf.array())
))
.build()
);
}
public void ackRecordedData(final XiaomiActivityFileId fileId) {
getSupport().sendCommand(
"ack recorded data",
XiaomiProto.Command.newBuilder()
.setType(COMMAND_TYPE)
.setSubtype(CMD_ACTIVITY_FETCH_ACK)
.setHealth(XiaomiProto.Health.newBuilder().setActivitySyncAckFileIds(
ByteString.copyFrom(fileId.toBytes())
))
.build()
);
}
public void handleActivityFetchResponse(final int subtype, final byte[] recordIds) {
if ((recordIds.length % 7) != 0) {
LOG.warn("recordIds {} length = {}, not a multiple of 7, can't parse", GB.hexdump(recordIds), recordIds.length);
return;
}
LOG.debug("Got {} record IDs", recordIds.length / 7);
final ByteBuffer buf = ByteBuffer.wrap(recordIds).order(ByteOrder.LITTLE_ENDIAN);
final List<XiaomiActivityFileId> fileIds = new ArrayList<>();
while (buf.position() < buf.limit()) {
final int ts = buf.getInt();
final int tz = buf.get(); // 15 min blocks
final int version = buf.get();
final int flags = buf.get();
// bit 0 is type - 0 activity, 1 sports
final int type = (flags >> 7) & 1;
// bit 1 to 6 bits are subtype
// for activity: activity, sleep, measurements, etc
// for workout: workout type (8 freestyle)
final int subtype = (flags & 127) >> 2;
// bit 6 and 7 - 0/1 - summary vs details
final int detailType = flags & 3;
LOG.debug(
"Activity Record: ts = {}, tz = {}, flags = {}, type = {}, subtype = {}, detailType = {}, version = {}",
ts, tz, String.format("0x%02X", flags), type, subtype, detailType, version
);
final XiaomiActivityFileId fileId = XiaomiActivityFileId.from(buf);
LOG.debug("Got activity to fetch: {}", fileId);
fileIds.add(fileId);
}
if (!fileIds.isEmpty()) {
LOG.debug("Fetching {} files", fileIds.size());
activityFetcher.fetch(fileIds);
}
if (subtype == CMD_ACTIVITY_FETCH_TODAY) {
LOG.debug("Fetch recorded data from the past");
// FIXME fix scheduling fetchRecordedDataPast();
}
}

View File

@ -282,8 +282,11 @@ message Charger {
message Health {
optional UserInfo userInfo = 1;
optional bytes activityRecordIds = 2;
optional ActivitySyncRequest1 activitySyncRequest1 = 5;
// 8, 2 get today | 8, 3 get past
optional bytes activityRequestFileIds = 2;
//
optional bytes activitySyncAckFileIds = 3;
optional ActivitySyncRequestToday activitySyncRequestToday = 5;
optional SpO2 spo2 = 7;
optional HeartRate heartRate = 8;
@ -321,8 +324,8 @@ message UserInfo {
optional uint32 goalMoving = 11; // minutes
}
message ActivitySyncRequest1 {
optional uint32 unknown1 = 1; // 0/1
message ActivitySyncRequestToday {
optional uint32 unknown1 = 1; // 0 most of the time, sometimes 1
}
message SpO2 {

View File

@ -0,0 +1,55 @@
/* Copyright (C) 2023 José Rebelo
This file is part of Gadgetbridge.
Gadgetbridge is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gadgetbridge is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity;
import static org.junit.Assert.*;
import org.junit.Test;
import java.util.Date;
import nodomain.freeyourgadget.gadgetbridge.util.GB;
public class XiaomiActivityFileIdTest {
@Test
public void testEncode() {
final byte[] bytes = GB.hexStringToByteArray("21F328650403A0");
final XiaomiActivityFileId xiaomiActivityFileId = new XiaomiActivityFileId(
new Date(1697182497000L),
4,
3,
1,
8,
0
);
assertArrayEquals(bytes, xiaomiActivityFileId.toBytes());
}
@Test
public void testDecode() {
final byte[] bytes = GB.hexStringToByteArray("21F328650403A0");
final XiaomiActivityFileId fileId = XiaomiActivityFileId.from(bytes);
assertEquals(1697182497000L, fileId.getTimestamp().getTime());
assertEquals(4, fileId.getTimezone());
assertEquals(3, fileId.getVersion());
assertEquals(1, fileId.getType());
assertEquals(8, fileId.getSubtype());
assertEquals(0, fileId.getDetailType());
}
}