Send targeted broadcasts to prevent other apps from receiving them.

When sending broadcasts ACTION_SNOOZE_WARNING in NPMS, which may
contain sensitive information, explicitly set the package name
that should receive it to prevent other apps from receiving them.

Bug: 177931370
Test: manual
Change-Id: I11d736771d859d2af27d5c84a502ab038974e2e2
Merged-In: I11d736771d859d2af27d5c84a502ab038974e2e2
(cherry picked from commit 1494979a6ac772fa49a26748f047a4c3d64baf51)
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index 6c34e13..9fff3f8 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -1349,7 +1349,8 @@
 
                 builder.setSmallIcon(R.drawable.stat_notify_error);
 
-                final Intent snoozeIntent = buildSnoozeWarningIntent(policy.template);
+                final Intent snoozeIntent = buildSnoozeWarningIntent(policy.template,
+                        mContext.getPackageName());
                 builder.setDeleteIntent(PendingIntent.getBroadcast(
                         mContext, 0, snoozeIntent, PendingIntent.FLAG_UPDATE_CURRENT));
 
@@ -1435,7 +1436,8 @@
 
                 builder.setSmallIcon(R.drawable.stat_notify_error);
 
-                final Intent snoozeIntent = buildSnoozeRapidIntent(policy.template);
+                final Intent snoozeIntent = buildSnoozeRapidIntent(policy.template,
+                        mContext.getPackageName());
                 builder.setDeleteIntent(PendingIntent.getBroadcast(
                         mContext, 0, snoozeIntent, PendingIntent.FLAG_UPDATE_CURRENT));
 
@@ -4862,17 +4864,19 @@
         return new Intent(ACTION_ALLOW_BACKGROUND);
     }
 
-    private static Intent buildSnoozeWarningIntent(NetworkTemplate template) {
+    private static Intent buildSnoozeWarningIntent(NetworkTemplate template, String targetPackage) {
         final Intent intent = new Intent(ACTION_SNOOZE_WARNING);
         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
         intent.putExtra(EXTRA_NETWORK_TEMPLATE, template);
+        intent.setPackage(targetPackage);
         return intent;
     }
 
-    private static Intent buildSnoozeRapidIntent(NetworkTemplate template) {
+    private static Intent buildSnoozeRapidIntent(NetworkTemplate template, String targetPackage) {
         final Intent intent = new Intent(ACTION_SNOOZE_RAPID);
         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
         intent.putExtra(EXTRA_NETWORK_TEMPLATE, template);
+        intent.setPackage(targetPackage);
         return intent;
     }