Prevent sending media key events from the non-system app to the global
priority session through the MediaSessionManager.dispatchMediaKeyEvent().
Note that any app can use the API indirectly with
the public API AudioManager.dispatchMediaKeyEvent().
Bug:
29833954
Tested: Installed malicious apps and confirmed that they don't work.
Tested: Run CtsTelecomTestCases and CtsMediaTestCases
Change-Id: I2a9e78196ba7455324e485f098f095d03b47ee15
(cherry picked from commit
c282c4f106bea5c5375fdb6062ffd4fdcf8563a7)
import android.os.IBinder;
import android.os.Message;
import android.os.PowerManager;
+import android.os.Process;
import android.os.RemoteException;
import android.os.ResultReceiver;
import android.os.ServiceManager;
+ "setup is in progress.");
return;
}
+ if (isGlobalPriorityActive() && uid != Process.SYSTEM_UID) {
+ // Prevent dispatching key event through reflection while the global priority
+ // session is active.
+ Slog.i(TAG, "Only the system can dispatch media key event "
+ + "to the global priority session.");
+ return;
+ }
synchronized (mLock) {
// If we don't have a media button receiver to fall back on