| /* |
| * Copyright (C) 2016 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 android.permissionpresenterservice; |
| |
| import android.annotation.SystemApi; |
| import android.app.Service; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.permission.IRuntimePermissionPresenter; |
| import android.content.pm.permission.RuntimePermissionPresentationInfo; |
| import android.content.pm.permission.RuntimePermissionPresenter; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteCallback; |
| import com.android.internal.os.SomeArgs; |
| |
| import java.util.List; |
| |
| /** |
| * This service presents information regarding runtime permissions that is |
| * used for presenting them in the UI. Runtime permissions are presented as |
| * a single permission in the UI but may be composed of several individual |
| * permissions. |
| * |
| * @see RuntimePermissionPresenter |
| * @see RuntimePermissionPresentationInfo |
| * |
| * @hide |
| */ |
| @SystemApi |
| public abstract class RuntimePermissionPresenterService extends Service { |
| |
| /** |
| * The {@link Intent} action that must be declared as handled by a service |
| * in its manifest for the system to recognize it as a runtime permission |
| * presenter service. |
| */ |
| public static final String SERVICE_INTERFACE = |
| "android.permissionpresenterservice.RuntimePermissionPresenterService"; |
| |
| // No need for locking - always set first and never modified |
| private Handler mHandler; |
| |
| @Override |
| public final void attachBaseContext(Context base) { |
| super.attachBaseContext(base); |
| mHandler = new MyHandler(base.getMainLooper()); |
| } |
| |
| /** |
| * Gets the runtime permissions for an app. |
| * |
| * @param packageName The package for which to query. |
| */ |
| public abstract List<RuntimePermissionPresentationInfo> onGetAppPermissions(String packageName); |
| |
| @Override |
| public final IBinder onBind(Intent intent) { |
| return new IRuntimePermissionPresenter.Stub() { |
| @Override |
| public void getAppPermissions(String packageName, RemoteCallback callback) { |
| SomeArgs args = SomeArgs.obtain(); |
| args.arg1 = packageName; |
| args.arg2 = callback; |
| mHandler.obtainMessage(MyHandler.MSG_GET_APP_PERMISSIONS, |
| args).sendToTarget(); |
| } |
| }; |
| } |
| |
| private final class MyHandler extends Handler { |
| public static final int MSG_GET_APP_PERMISSIONS = 1; |
| public static final int MSG_GET_APPS_USING_PERMISSIONS = 2; |
| |
| public MyHandler(Looper looper) { |
| super(looper, null, false); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_GET_APP_PERMISSIONS: { |
| SomeArgs args = (SomeArgs) msg.obj; |
| String packageName = (String) args.arg1; |
| RemoteCallback callback = (RemoteCallback) args.arg2; |
| args.recycle(); |
| List<RuntimePermissionPresentationInfo> permissions = |
| onGetAppPermissions(packageName); |
| if (permissions != null && !permissions.isEmpty()) { |
| Bundle result = new Bundle(); |
| result.putParcelableList(RuntimePermissionPresenter.KEY_RESULT, |
| permissions); |
| callback.sendResult(result); |
| } else { |
| callback.sendResult(null); |
| } |
| } break; |
| } |
| } |
| } |
| } |