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Restricts notified app ops based on flags

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AppOps that are received by SystemUI and notified to listeners of
AppOpsControllerImpl are filtered based on the permission flag
PackageManager.FLAG_PERMISSION_USER_SENSITIVE_WHEN_GRANTED.

As calls to obtain this flag require an IPC, three things are done to
mitigate impact:
* PermissionFlagsCache keeps track of requested flags and will update
those (in a background thread), when a change is notified for a given
uid.
* Calls to getActiveAppOps/getActiveAppOpsForUser should be made from a
background thread.
* notifySubscribers is always called in the background thread.

Bug: 160966908
Test: atest PermissionFlagsCacheTest AppOpsControllerTest
Change-Id: I871094c32ce5ec940d779626333caa0ca500a4e3
Merged-In: I871094c32ce5ec940d779626333caa0ca500a4e3
This commit is contained in:
Fabian Kozynski
2020-07-09 09:23:37 -04:00
parent d074a54435
commit fd89d72b13
6 changed files with 348 additions and 6 deletions
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1
packages/SystemUI/AndroidManifest.xml
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@@ -239,6 +239,7 @@
<!-- Listen app op changes -->
<uses-permission android:name="android.permission.WATCH_APPOPS" />
<uses-permission android:name="android.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS" />
<!-- to read and change hvac values in a car -->
<uses-permission android:name="android.car.permission.CONTROL_CAR_CLIMATE" />