Merge "Add caller check to com.android.credentials.RESET" into qt-dev

src/com/android/settings/security/CredentialStorage.java

@@ -92,7 +92,7 @@ public final class CredentialStorage extends FragmentActivity {
         final String action = intent.getAction();
         final UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE);
         if (!userManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_CREDENTIALS)) {
-            if (ACTION_RESET.equals(action)) {
+            if (ACTION_RESET.equals(action) && checkCallerIsSelf()) {
                 new ResetDialog();
             } else {
                 if (ACTION_INSTALL.equals(action) && checkCallerIsCertInstallerOrSelfInProfile()) {
@@ -341,6 +341,19 @@ public final class CredentialStorage extends FragmentActivity {
         }
     }
 
+    /**
+     * Check that the caller is Settings.
+     */
+    private boolean checkCallerIsSelf() {
+        try {
+            return Process.myUid() == android.app.ActivityManager.getService()
+                    .getLaunchedFromUid(getActivityToken());
+        } catch (RemoteException re) {
+            // Error talking to ActivityManager, just give up
+            return false;
+        }
+    }
+
     /**
      * Check that the caller is either certinstaller or Settings running in a profile of this user.
      */