| /* |
| * Copyright (C) 2018 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.contentcapture; |
| |
| import static com.android.server.contentcapture.ContentCaptureManagerService.RECEIVER_BUNDLE_EXTRA_SESSIONS; |
| |
| import android.annotation.NonNull; |
| import android.os.Bundle; |
| import android.os.ShellCommand; |
| import android.os.UserHandle; |
| |
| import com.android.internal.os.IResultReceiver; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Shell Command implementation for {@link ContentCaptureManagerService}. |
| */ |
| public final class ContentCaptureManagerServiceShellCommand extends ShellCommand { |
| |
| private final ContentCaptureManagerService mService; |
| |
| public ContentCaptureManagerServiceShellCommand(@NonNull ContentCaptureManagerService service) { |
| mService = service; |
| } |
| |
| @Override |
| public int onCommand(String cmd) { |
| if (cmd == null) { |
| return handleDefaultCommands(cmd); |
| } |
| final PrintWriter pw = getOutPrintWriter(); |
| switch (cmd) { |
| case "list": |
| return requestList(pw); |
| case "destroy": |
| return requestDestroy(pw); |
| case "get": |
| return requestGet(pw); |
| case "set": |
| return requestSet(pw); |
| default: |
| return handleDefaultCommands(cmd); |
| } |
| } |
| |
| @Override |
| public void onHelp() { |
| try (PrintWriter pw = getOutPrintWriter();) { |
| pw.println("ContentCapture Service (content_capture) commands:"); |
| pw.println(" help"); |
| pw.println(" Prints this help text."); |
| pw.println(""); |
| pw.println(" get bind-instant-service-allowed"); |
| pw.println(" Gets whether binding to services provided by instant apps is allowed"); |
| pw.println(""); |
| pw.println(" set bind-instant-service-allowed [true | false]"); |
| pw.println(" Sets whether binding to services provided by instant apps is allowed"); |
| pw.println(""); |
| pw.println(" set temporary-service USER_ID [COMPONENT_NAME DURATION]"); |
| pw.println(" Temporarily (for DURATION ms) changes the service implemtation."); |
| pw.println(" To reset, call with just the USER_ID argument."); |
| pw.println(""); |
| pw.println(" list sessions [--user USER_ID]"); |
| pw.println(" Lists all pending sessions."); |
| pw.println(""); |
| pw.println(" destroy sessions [--user USER_ID]"); |
| pw.println(" Destroys all pending sessions."); |
| pw.println(""); |
| } |
| } |
| |
| private int requestGet(PrintWriter pw) { |
| final String what = getNextArgRequired(); |
| switch(what) { |
| case "bind-instant-service-allowed": |
| return getBindInstantService(pw); |
| default: |
| pw.println("Invalid set: " + what); |
| return -1; |
| } |
| } |
| |
| private int requestSet(PrintWriter pw) { |
| final String what = getNextArgRequired(); |
| |
| switch(what) { |
| case "bind-instant-service-allowed": |
| return setBindInstantService(pw); |
| case "temporary-service": |
| return setTemporaryService(pw); |
| default: |
| pw.println("Invalid set: " + what); |
| return -1; |
| } |
| } |
| |
| private int getBindInstantService(PrintWriter pw) { |
| if (mService.getAllowInstantService()) { |
| pw.println("true"); |
| } else { |
| pw.println("false"); |
| } |
| return 0; |
| } |
| |
| private int setBindInstantService(PrintWriter pw) { |
| final String mode = getNextArgRequired(); |
| switch (mode.toLowerCase()) { |
| case "true": |
| mService.setAllowInstantService(true); |
| return 0; |
| case "false": |
| mService.setAllowInstantService(false); |
| return 0; |
| default: |
| pw.println("Invalid mode: " + mode); |
| return -1; |
| } |
| } |
| |
| private int setTemporaryService(PrintWriter pw) { |
| final int userId = getNextIntArgRequired(); |
| final String serviceName = getNextArg(); |
| if (serviceName == null) { |
| mService.resetTemporaryService(userId); |
| return 0; |
| } |
| final int duration = getNextIntArgRequired(); |
| mService.setTemporaryService(userId, serviceName, duration); |
| pw.println("ContentCaptureService temporarily set to " + serviceName + " for " |
| + duration + "ms"); |
| return 0; |
| } |
| |
| private int requestDestroy(PrintWriter pw) { |
| if (!isNextArgSessions(pw)) { |
| return -1; |
| } |
| |
| final int userId = getUserIdFromArgsOrAllUsers(); |
| final CountDownLatch latch = new CountDownLatch(1); |
| final IResultReceiver receiver = new IResultReceiver.Stub() { |
| @Override |
| public void send(int resultCode, Bundle resultData) { |
| latch.countDown(); |
| } |
| }; |
| return requestSessionCommon(pw, latch, () -> mService.destroySessions(userId, receiver)); |
| } |
| |
| private int requestList(PrintWriter pw) { |
| if (!isNextArgSessions(pw)) { |
| return -1; |
| } |
| |
| final int userId = getUserIdFromArgsOrAllUsers(); |
| final CountDownLatch latch = new CountDownLatch(1); |
| final IResultReceiver receiver = new IResultReceiver.Stub() { |
| @Override |
| public void send(int resultCode, Bundle resultData) { |
| final ArrayList<String> sessions = resultData |
| .getStringArrayList(RECEIVER_BUNDLE_EXTRA_SESSIONS); |
| for (String session : sessions) { |
| pw.println(session); |
| } |
| latch.countDown(); |
| } |
| }; |
| return requestSessionCommon(pw, latch, () -> mService.listSessions(userId, receiver)); |
| } |
| |
| private boolean isNextArgSessions(PrintWriter pw) { |
| final String type = getNextArgRequired(); |
| if (!type.equals("sessions")) { |
| pw.println("Error: invalid list type"); |
| return false; |
| } |
| return true; |
| } |
| |
| private int requestSessionCommon(PrintWriter pw, CountDownLatch latch, |
| Runnable command) { |
| command.run(); |
| return waitForLatch(pw, latch); |
| } |
| |
| private int waitForLatch(PrintWriter pw, CountDownLatch latch) { |
| try { |
| final boolean received = latch.await(5, TimeUnit.SECONDS); |
| if (!received) { |
| pw.println("Timed out after 5 seconds"); |
| return -1; |
| } |
| } catch (InterruptedException e) { |
| pw.println("System call interrupted"); |
| Thread.currentThread().interrupt(); |
| return -1; |
| } |
| return 0; |
| } |
| |
| private int getUserIdFromArgsOrAllUsers() { |
| if ("--user".equals(getNextArg())) { |
| return UserHandle.parseUserArg(getNextArgRequired()); |
| } |
| return UserHandle.USER_ALL; |
| } |
| |
| private int getNextIntArgRequired() { |
| return Integer.parseInt(getNextArgRequired()); |
| } |
| } |