| /* |
| * 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.role; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.role.IRoleManager; |
| import android.os.RemoteCallback; |
| import android.os.RemoteException; |
| import android.os.ShellCommand; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| import java.io.PrintWriter; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.TimeUnit; |
| |
| class RoleManagerShellCommand extends ShellCommand { |
| |
| @NonNull |
| private final IRoleManager mRoleManager; |
| |
| RoleManagerShellCommand(@NonNull IRoleManager roleManager) { |
| mRoleManager = roleManager; |
| } |
| |
| private class CallbackFuture extends CompletableFuture<Void> { |
| |
| @NonNull |
| public RemoteCallback createCallback() { |
| return new RemoteCallback(result -> { |
| boolean successful = result != null; |
| if (successful) { |
| complete(null); |
| } else { |
| completeExceptionally(new RuntimeException("Failed")); |
| } |
| }); |
| } |
| |
| public int waitForResult() { |
| try { |
| get(5, TimeUnit.SECONDS); |
| return 0; |
| } catch (Exception e) { |
| getErrPrintWriter().println("Error: see logcat for details.\n" |
| + Log.getStackTraceString(e)); |
| return -1; |
| } |
| } |
| } |
| |
| @Override |
| public int onCommand(@Nullable String cmd) { |
| if (cmd == null) { |
| return handleDefaultCommands(cmd); |
| } |
| |
| PrintWriter pw = getOutPrintWriter(); |
| try { |
| switch (cmd) { |
| case "add-role-holder": |
| return runAddRoleHolder(); |
| case "remove-role-holder": |
| return runRemoveRoleHolder(); |
| case "clear-role-holders": |
| return runClearRoleHolders(); |
| default: |
| return handleDefaultCommands(cmd); |
| } |
| } catch (RemoteException e) { |
| pw.println("Remote exception: " + e); |
| } |
| return -1; |
| } |
| |
| private int getUserIdMaybe() { |
| int userId = UserHandle.USER_SYSTEM; |
| String option = getNextOption(); |
| if (option != null && option.equals("--user")) { |
| userId = UserHandle.parseUserArg(getNextArgRequired()); |
| } |
| return userId; |
| } |
| |
| private int getFlagsMaybe() { |
| String flags = getNextArg(); |
| if (flags == null) { |
| return 0; |
| } |
| return Integer.parseInt(flags); |
| } |
| |
| private int runAddRoleHolder() throws RemoteException { |
| int userId = getUserIdMaybe(); |
| String roleName = getNextArgRequired(); |
| String packageName = getNextArgRequired(); |
| int flags = getFlagsMaybe(); |
| |
| CallbackFuture future = new CallbackFuture(); |
| mRoleManager.addRoleHolderAsUser(roleName, packageName, flags, userId, |
| future.createCallback()); |
| return future.waitForResult(); |
| } |
| |
| private int runRemoveRoleHolder() throws RemoteException { |
| int userId = getUserIdMaybe(); |
| String roleName = getNextArgRequired(); |
| String packageName = getNextArgRequired(); |
| int flags = getFlagsMaybe(); |
| |
| CallbackFuture future = new CallbackFuture(); |
| mRoleManager.removeRoleHolderAsUser(roleName, packageName, flags, userId, |
| future.createCallback()); |
| return future.waitForResult(); |
| } |
| |
| private int runClearRoleHolders() throws RemoteException { |
| int userId = getUserIdMaybe(); |
| String roleName = getNextArgRequired(); |
| int flags = getFlagsMaybe(); |
| |
| CallbackFuture future = new CallbackFuture(); |
| mRoleManager.clearRoleHoldersAsUser(roleName, flags, userId, future.createCallback()); |
| return future.waitForResult(); |
| } |
| |
| @Override |
| public void onHelp() { |
| PrintWriter pw = getOutPrintWriter(); |
| pw.println("Role manager (role) commands:"); |
| pw.println(" help"); |
| pw.println(" Print this help text."); |
| pw.println(); |
| pw.println(" add-role-holder [--user USER_ID] ROLE PACKAGE [FLAGS]"); |
| pw.println(" remove-role-holder [--user USER_ID] ROLE PACKAGE [FLAGS]"); |
| pw.println(" clear-role-holders [--user USER_ID] ROLE [FLAGS]"); |
| pw.println(); |
| } |
| } |