| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.wearable; |
| |
| import android.annotation.NonNull; |
| import android.app.wearable.WearableSensingManager; |
| import android.content.ComponentName; |
| import android.os.Binder; |
| import android.os.ParcelFileDescriptor; |
| import android.os.PersistableBundle; |
| import android.os.RemoteCallback; |
| import android.os.ShellCommand; |
| import android.util.Slog; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| |
| final class WearableSensingShellCommand extends ShellCommand { |
| private static final String TAG = WearableSensingShellCommand.class.getSimpleName(); |
| |
| static final TestableCallbackInternal sTestableCallbackInternal = |
| new TestableCallbackInternal(); |
| |
| @NonNull |
| private final WearableSensingManagerService mService; |
| |
| private static ParcelFileDescriptor[] sPipe; |
| |
| WearableSensingShellCommand(@NonNull WearableSensingManagerService service) { |
| mService = service; |
| } |
| |
| /** Callbacks for WearableSensingService results used internally for testing. */ |
| static class TestableCallbackInternal { |
| private int mLastStatus; |
| |
| public int getLastStatus() { |
| return mLastStatus; |
| } |
| |
| @NonNull |
| private RemoteCallback createRemoteStatusCallback() { |
| return new RemoteCallback(result -> { |
| int status = result.getInt(WearableSensingManager.STATUS_RESPONSE_BUNDLE_KEY); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| mLastStatus = status; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| }); |
| } |
| } |
| |
| @Override |
| public int onCommand(String cmd) { |
| if (cmd == null) { |
| return handleDefaultCommands(cmd); |
| } |
| |
| switch (cmd) { |
| case "create-data-stream": |
| return createDataStream(); |
| case "destroy-data-stream": |
| return destroyDataStream(); |
| case "provide-data-stream": |
| return provideDataStream(); |
| case "write-to-data-stream": |
| return writeToDataStream(); |
| case "provide-data": |
| return provideData(); |
| case "get-last-status-code": |
| return getLastStatusCode(); |
| case "get-bound-package": |
| return getBoundPackageName(); |
| case "set-temporary-service": |
| return setTemporaryService(); |
| default: |
| return handleDefaultCommands(cmd); |
| } |
| } |
| |
| @Override |
| public void onHelp() { |
| PrintWriter pw = getOutPrintWriter(); |
| pw.println("WearableSensingCommands commands: "); |
| pw.println(" help"); |
| pw.println(" Print this help text."); |
| pw.println(); |
| pw.println(" create-data-stream: Creates a data stream to be provided."); |
| pw.println(" destroy-data-stream: Destroys a data stream if one was previously created."); |
| pw.println(" provide-data-stream USER_ID: " |
| + "Provides data stream to WearableSensingService."); |
| pw.println(" write-to-data-stream STRING: writes string to data stream."); |
| pw.println(" provide-data USER_ID KEY INTEGER: provide integer as data with key."); |
| pw.println(" get-last-status-code: Prints the latest request status code."); |
| pw.println(" get-bound-package USER_ID:" |
| + " Print the bound package that implements the service."); |
| pw.println(" set-temporary-service USER_ID [PACKAGE_NAME] [COMPONENT_NAME DURATION]"); |
| pw.println(" Temporarily (for DURATION ms) changes the service implementation."); |
| pw.println(" To reset, call with just the USER_ID argument."); |
| } |
| |
| private int createDataStream() { |
| Slog.d(TAG, "createDataStream"); |
| try { |
| sPipe = ParcelFileDescriptor.createPipe(); |
| } catch (IOException e) { |
| Slog.d(TAG, "Failed to createDataStream.", e); |
| } |
| return 0; |
| } |
| |
| private int destroyDataStream() { |
| Slog.d(TAG, "destroyDataStream"); |
| try { |
| if (sPipe != null) { |
| sPipe[0].close(); |
| sPipe[1].close(); |
| } |
| } catch (IOException e) { |
| Slog.d(TAG, "Failed to destroyDataStream.", e); |
| } |
| return 0; |
| } |
| |
| private int provideDataStream() { |
| Slog.d(TAG, "provideDataStream"); |
| if (sPipe != null) { |
| final int userId = Integer.parseInt(getNextArgRequired()); |
| mService.provideDataStream(userId, sPipe[0], |
| sTestableCallbackInternal.createRemoteStatusCallback()); |
| } |
| return 0; |
| } |
| |
| private int writeToDataStream() { |
| Slog.d(TAG, "writeToDataStream"); |
| if (sPipe != null) { |
| final String value = getNextArgRequired(); |
| try { |
| ParcelFileDescriptor writePipe = sPipe[1].dup(); |
| OutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(writePipe); |
| os.write(value.getBytes()); |
| } catch (IOException e) { |
| Slog.d(TAG, "Failed to writeToDataStream.", e); |
| } |
| } |
| return 0; |
| } |
| |
| private int provideData() { |
| Slog.d(TAG, "provideData"); |
| final int userId = Integer.parseInt(getNextArgRequired()); |
| final String key = getNextArgRequired(); |
| final int value = Integer.parseInt(getNextArgRequired()); |
| PersistableBundle data = new PersistableBundle(); |
| data.putInt(key, value); |
| |
| mService.provideData(userId, data, null, |
| sTestableCallbackInternal.createRemoteStatusCallback()); |
| return 0; |
| } |
| |
| private int getLastStatusCode() { |
| Slog.d(TAG, "getLastStatusCode"); |
| final PrintWriter resultPrinter = getOutPrintWriter(); |
| int lastStatus = sTestableCallbackInternal.getLastStatus(); |
| resultPrinter.println(lastStatus); |
| return 0; |
| } |
| |
| private int setTemporaryService() { |
| final PrintWriter out = getOutPrintWriter(); |
| final int userId = Integer.parseInt(getNextArgRequired()); |
| final String serviceName = getNextArg(); |
| if (serviceName == null) { |
| mService.resetTemporaryService(userId); |
| out.println("WearableSensingManagerService temporary reset. "); |
| return 0; |
| } |
| |
| final int duration = Integer.parseInt(getNextArgRequired()); |
| mService.setTemporaryService(userId, serviceName, duration); |
| out.println("WearableSensingService temporarily set to " + serviceName |
| + " for " + duration + "ms"); |
| return 0; |
| } |
| |
| private int getBoundPackageName() { |
| final PrintWriter resultPrinter = getOutPrintWriter(); |
| final int userId = Integer.parseInt(getNextArgRequired()); |
| final ComponentName componentName = mService.getComponentName(userId); |
| resultPrinter.println(componentName == null ? "" : componentName.getPackageName()); |
| return 0; |
| } |
| } |