| /* |
| * Copyright (C) 2019 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.telephony; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.SystemApi; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| |
| /** |
| * A static helper class used to send Intents with prepopulated flags. |
| * <p> |
| * This is intended to be used by the CellBroadcastService and will throw a security exception if |
| * used from a UID besides the network stack UID. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public class CellBroadcastIntents { |
| private static final String LOG_TAG = "CellBroadcastIntents"; |
| |
| /** |
| * @hide |
| */ |
| private CellBroadcastIntents() { |
| } |
| |
| /** |
| * Returns an intent which can be received by background BroadcastReceivers. This is only |
| * intended to be used by the CellBroadcastService and will throw a security exception if called |
| * from another UID. |
| * |
| * @param context The context from which to send the broadcast |
| * @param user The user from which to send the broadcast |
| * @param intent The Intent to broadcast; all receivers matching this Intent will |
| * receive the broadcast. |
| * @param receiverPermission String naming a permissions that a receiver must hold in order to |
| * receive your broadcast. If null, no permission is required. |
| * @param receiverAppOp The app op associated with the broadcast. If null, no appOp is |
| * required. If both receiverAppOp and receiverPermission are |
| * non-null, a receiver must have both of them to receive the |
| * broadcast |
| * @param resultReceiver Your own BroadcastReceiver to treat as the final receiver of the |
| * broadcast. |
| * @param scheduler A custom Handler with which to schedule the resultReceiver |
| * callback; if null it will be scheduled in the Context's main |
| * thread. |
| * @param initialCode An initial value for the result code. Often Activity.RESULT_OK. |
| * @param initialData An initial value for the result data. Often null. |
| * @param initialExtras An initial value for the result extras. Often null. |
| */ |
| public static void sendOrderedBroadcastForBackgroundReceivers(@NonNull Context context, |
| @Nullable UserHandle user, @NonNull Intent intent, @Nullable String receiverPermission, |
| @Nullable String receiverAppOp, @Nullable BroadcastReceiver resultReceiver, |
| @Nullable Handler scheduler, int initialCode, @Nullable String initialData, |
| @Nullable Bundle initialExtras) { |
| int status = context.checkCallingOrSelfPermission( |
| "android.permission.GRANT_RUNTIME_PERMISSIONS_TO_TELEPHONY_DEFAULTS"); |
| if (status == PackageManager.PERMISSION_DENIED) { |
| throw new SecurityException( |
| "Caller does not have permission to send broadcast for background receivers"); |
| } |
| Intent backgroundIntent = new Intent(intent); |
| backgroundIntent.setFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| if (user != null) { |
| context.createContextAsUser(user, 0).sendOrderedBroadcast(backgroundIntent, |
| receiverPermission, receiverAppOp, resultReceiver, scheduler, initialCode, |
| initialData, initialExtras); |
| } else { |
| context.sendOrderedBroadcast(backgroundIntent, receiverPermission, |
| receiverAppOp, resultReceiver, scheduler, initialCode, initialData, |
| initialExtras); |
| } |
| } |
| } |