From 78245566a27882cce59c0d7cd4c60e1604392a3f Mon Sep 17 00:00:00 2001
From: Yuri Lin <yurilin@google.com>
Date: Tue, 6 Sep 2022 16:14:16 -0400
Subject: [PATCH] Fix system zen rules by using owner package name if caller is
 system

Previously were unable to add new zen rules because rules added via the settings pages were getting registered under package "com.android.settings", which then were not considered "system rules". These rules should have package android, so when we can trust the caller (via checking that the caller is system) we should be taking the package name from the owner of the rule.

Bug: 245236706
Bug: 242537431
Test: NMSTest; manual

Change-Id: Id69b671592396ac3304862dadbe73de328a8e27a
Merged-In: Id69b671592396ac3304862dadbe73de328a8e27a
---
 .../NotificationManagerService.java           | 11 +++++-
 .../NotificationManagerServiceTest.java       | 37 +++++++++++++++++++
 2 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 27d6d2d6e75a7..42a3dc5214c78 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -4891,7 +4891,16 @@ public class NotificationManagerService extends SystemService {
             }
             enforcePolicyAccess(Binder.getCallingUid(), "addAutomaticZenRule");
 
-            return mZenModeHelper.addAutomaticZenRule(pkg, automaticZenRule,
+            // If the caller is system, take the package name from the rule's owner rather than
+            // from the caller's package.
+            String rulePkg = pkg;
+            if (isCallingUidSystem()) {
+                if (automaticZenRule.getOwner() != null) {
+                    rulePkg = automaticZenRule.getOwner().getPackageName();
+                }
+            }
+
+            return mZenModeHelper.addAutomaticZenRule(rulePkg, automaticZenRule,
                     "addAutomaticZenRule");
         }
 
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
index 3f9a8d23c4324..e7d67bfdf0877 100755
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -6656,6 +6656,43 @@ public class NotificationManagerServiceTest extends UiServiceTestCase {
         mBinderService.addAutomaticZenRule(rule, mContext.getPackageName());
     }
 
+    @Test
+    public void testAddAutomaticZenRule_systemCallTakesPackageFromOwner() throws Exception {
+        mService.isSystemUid = true;
+        ZenModeHelper mockZenModeHelper = mock(ZenModeHelper.class);
+        when(mConditionProviders.isPackageOrComponentAllowed(anyString(), anyInt()))
+                .thenReturn(true);
+        mService.setZenHelper(mockZenModeHelper);
+        ComponentName owner = new ComponentName("android", "ProviderName");
+        ZenPolicy zenPolicy = new ZenPolicy.Builder().allowAlarms(true).build();
+        boolean isEnabled = true;
+        AutomaticZenRule rule = new AutomaticZenRule("test", owner, owner, mock(Uri.class),
+                zenPolicy, NotificationManager.INTERRUPTION_FILTER_PRIORITY, isEnabled);
+        mBinderService.addAutomaticZenRule(rule, "com.android.settings");
+
+        // verify that zen mode helper gets passed in a package name of "android"
+        verify(mockZenModeHelper).addAutomaticZenRule(eq("android"), eq(rule), anyString());
+    }
+
+    @Test
+    public void testAddAutomaticZenRule_nonSystemCallTakesPackageFromArg() throws Exception {
+        mService.isSystemUid = false;
+        ZenModeHelper mockZenModeHelper = mock(ZenModeHelper.class);
+        when(mConditionProviders.isPackageOrComponentAllowed(anyString(), anyInt()))
+                .thenReturn(true);
+        mService.setZenHelper(mockZenModeHelper);
+        ComponentName owner = new ComponentName("android", "ProviderName");
+        ZenPolicy zenPolicy = new ZenPolicy.Builder().allowAlarms(true).build();
+        boolean isEnabled = true;
+        AutomaticZenRule rule = new AutomaticZenRule("test", owner, owner, mock(Uri.class),
+                zenPolicy, NotificationManager.INTERRUPTION_FILTER_PRIORITY, isEnabled);
+        mBinderService.addAutomaticZenRule(rule, "another.package");
+
+        // verify that zen mode helper gets passed in the package name from the arg, not the owner
+        verify(mockZenModeHelper).addAutomaticZenRule(
+                eq("another.package"), eq(rule), anyString());
+    }
+
     @Test
     public void testAreNotificationsEnabledForPackage_crossUser() throws Exception {
         try {