203 lines
6.8 KiB
Java
203 lines
6.8 KiB
Java
/* Copyright (C) 2016-2017 Carsten Pfeiffer, Daniele Gobbetti
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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.btclassic;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothSocket;
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import android.content.Context;
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import android.os.ParcelUuid;
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import android.support.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.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.SocketTimeoutException;
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import java.nio.ByteBuffer;
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import java.util.UUID;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEvent;
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import nodomain.freeyourgadget.gadgetbridge.devices.liveview.LiveviewConstants;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.service.serial.AbstractSerialDeviceSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceIoThread;
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import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceProtocol;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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public abstract class BtClassicIoThread extends GBDeviceIoThread {
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private static final Logger LOG = LoggerFactory.getLogger(BtClassicIoThread.class);
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private final GBDeviceProtocol mProtocol;
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private final AbstractSerialDeviceSupport mDeviceSupport;
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private BluetoothAdapter mBtAdapter = null;
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private BluetoothSocket mBtSocket = null;
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private InputStream mInStream = null;
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private OutputStream mOutStream = null;
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private boolean mQuit = false;
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@Override
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public void quit() {
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mQuit = true;
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if (mBtSocket != null) {
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try {
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mBtSocket.close();
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} catch (IOException e) {
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LOG.error(e.getMessage());
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}
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}
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}
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private boolean mIsConnected = false;
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public BtClassicIoThread(GBDevice gbDevice, Context context, GBDeviceProtocol deviceProtocol, AbstractSerialDeviceSupport deviceSupport, BluetoothAdapter btAdapter) {
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super(gbDevice, context);
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mProtocol = deviceProtocol;
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mDeviceSupport = deviceSupport;
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mBtAdapter = btAdapter;
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}
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@Override
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public synchronized void write(byte[] bytes) {
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if (null == bytes)
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return;
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LOG.debug("writing:" + GB.hexdump(bytes, 0, bytes.length));
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try {
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mOutStream.write(bytes);
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mOutStream.flush();
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} catch (IOException e) {
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LOG.error("Error writing.", e);
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}
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}
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@Override
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public void run() {
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mIsConnected = connect();
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if (!mIsConnected) {
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setUpdateState(GBDevice.State.NOT_CONNECTED);
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return;
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}
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mQuit = false;
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while (!mQuit) {
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LOG.info("Ready for a new message exchange.");
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try {
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GBDeviceEvent deviceEvents[] = mProtocol.decodeResponse(parseIncoming(mInStream));
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if (deviceEvents == null) {
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LOG.info("unhandled message");
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} else {
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for (GBDeviceEvent deviceEvent : deviceEvents) {
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if (deviceEvent == null) {
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continue;
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}
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mDeviceSupport.evaluateGBDeviceEvent(deviceEvent);
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}
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}
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} catch (SocketTimeoutException ignore) {
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LOG.debug("socket timeout, we can't help but ignore this");
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} catch (IOException e) {
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LOG.info(e.getMessage());
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mIsConnected = false;
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mBtSocket = null;
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mInStream = null;
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mOutStream = null;
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LOG.info("Bluetooth socket closed, will quit IO Thread");
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break;
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}
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}
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mIsConnected = false;
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if (mBtSocket != null) {
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try {
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mBtSocket.close();
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} catch (IOException e) {
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LOG.error(e.getMessage());
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}
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mBtSocket = null;
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}
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setUpdateState(GBDevice.State.NOT_CONNECTED);
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}
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@Override
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protected boolean connect() {
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GBDevice.State originalState = gbDevice.getState();
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setUpdateState(GBDevice.State.CONNECTING);
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try {
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BluetoothDevice btDevice = mBtAdapter.getRemoteDevice(gbDevice.getAddress());
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ParcelUuid uuids[] = btDevice.getUuids();
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if (uuids == null) {
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LOG.warn("Device provided no UUIDs to connect to, giving up: " + gbDevice);
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return false;
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}
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for (ParcelUuid uuid : uuids) {
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LOG.info("found service UUID " + uuid);
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}
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mBtSocket = btDevice.createRfcommSocketToServiceRecord(getUuidToConnect(uuids));
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mBtSocket.connect();
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mInStream = mBtSocket.getInputStream();
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mOutStream = mBtSocket.getOutputStream();
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setUpdateState(GBDevice.State.CONNECTED);
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} catch (IOException e) {
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LOG.error("Server socket cannot be started.");
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//LOG.error(e.getMessage());
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setUpdateState(originalState);
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mInStream = null;
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mOutStream = null;
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mBtSocket = null;
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return false;
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}
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write(mProtocol.encodeSetTime());
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setUpdateState(GBDevice.State.INITIALIZED);
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return true;
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}
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/**
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* Returns the uuid to connect to.
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* Default implementation returns the first of the given uuids that were
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* read from the remote device.
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* @param uuids
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* @return
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*/
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@NonNull
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protected UUID getUuidToConnect(@NonNull ParcelUuid[] uuids) {
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return uuids[0].getUuid();
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}
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protected void setUpdateState(GBDevice.State state) {
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gbDevice.setState(state);
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gbDevice.sendDeviceUpdateIntent(getContext());
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}
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/**
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* Returns an incoming message for consuming by the GBDeviceProtocol
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* @return
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* @throws IOException
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* @param inStream
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*/
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protected abstract byte[] parseIncoming(InputStream inStream) throws IOException;
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}
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