Use rule package name in addAutomaticZenRule; specify "android" for all system apps

This is a roll forward of two reverted changes combined into one:
commit b6d04416628ab29df57efcd738332912d9260cea
commit e5e51116fb767162966a8e0d23fafb4f0ff46e86

It additionally fixes an issue where in multi-user profiles (such as a guest user), rules would be incorrectly identified as not created by the system and would therefore fail to be created in settings.

Bug: 257477671
Bug: 245236706
Bug: 242537431
Test: NotificationManagerServiceTest; ZenModeHelperTest; manually verified that it's possible to create zen schedules from guest mode
Change-Id: I0c4c705cfe5fc875151958957daaf8657fbc21a7
Merged-In: I0c4c705cfe5fc875151958957daaf8657fbc21a7
(cherry picked from commit 7261cdd30bf18965d421fc28c68c61e380bc952d)

5 files changed, 113 insertions, 7 deletions

diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index a9955a0ddd38..e355e2076514 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -4932,7 +4932,16 @@ public class NotificationManagerService extends SystemService {
             }
             enforcePolicyAccess(Binder.getCallingUid(), "addAutomaticZenRule");
 
-            return mZenModeHelper.addAutomaticZenRule(pkg, automaticZenRule,
+            // If the calling app is the system (from any user), take the package name from the
+            // rule's owner rather than from the caller's package.
+            String rulePkg = pkg;
+            if (isCallingAppIdSystem()) {
+                if (automaticZenRule.getOwner() != null) {
+                    rulePkg = automaticZenRule.getOwner().getPackageName();
+                }
+            }
+
+            return mZenModeHelper.addAutomaticZenRule(rulePkg, automaticZenRule,
                     "addAutomaticZenRule");
         }
 
@@ -9667,6 +9676,12 @@ public class NotificationManagerService extends SystemService {
         return uid == Process.SYSTEM_UID;
     }
 
+    protected boolean isCallingAppIdSystem() {
+        final int uid = Binder.getCallingUid();
+        final int appid = UserHandle.getAppId(uid);
+        return appid == Process.SYSTEM_UID;
+    }
+
     protected boolean isUidSystemOrPhone(int uid) {
         final int appid = UserHandle.getAppId(uid);
         return (appid == Process.SYSTEM_UID || appid == Process.PHONE_UID
diff --git a/services/core/java/com/android/server/notification/ZenModeHelper.java b/services/core/java/com/android/server/notification/ZenModeHelper.java
index 2b00ad7c5cd7..85c47a02bb90 100644
--- a/services/core/java/com/android/server/notification/ZenModeHelper.java
+++ b/services/core/java/com/android/server/notification/ZenModeHelper.java
@@ -314,7 +314,7 @@ public class ZenModeHelper {
 
     public String addAutomaticZenRule(String pkg, AutomaticZenRule automaticZenRule,
             String reason) {
-        if (!isSystemRule(automaticZenRule)) {
+        if (!ZenModeConfig.SYSTEM_AUTHORITY.equals(pkg)) {
             PackageItemInfo component = getServiceInfo(automaticZenRule.getOwner());
             if (component == null) {
                 component = getActivityInfo(automaticZenRule.getConfigurationActivity());
@@ -570,11 +570,6 @@ public class ZenModeHelper {
         }
     }
 
-    private boolean isSystemRule(AutomaticZenRule rule) {
-        return rule.getOwner() != null
-                && ZenModeConfig.SYSTEM_AUTHORITY.equals(rule.getOwner().getPackageName());
-    }
-
     private ServiceInfo getServiceInfo(ComponentName owner) {
         Intent queryIntent = new Intent();
         queryIntent.setComponent(owner);
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 9a07e7d5a953..0c190b8556c0 100755
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -7454,6 +7454,65 @@ public class NotificationManagerServiceTest extends UiServiceTestCase {
     }
 
     @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_systemAppIdCallTakesPackageFromOwner() throws Exception {
+        // The multi-user case: where the calling uid doesn't match the system uid, but the calling
+        // *appid* is the system.
+        mService.isSystemUid = false;
+        mService.isSystemAppId = 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;
+        mService.isSystemAppId = 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() throws Exception {
         mBinderService.areNotificationsEnabledForPackage(mContext.getPackageName(),
                 mUid);
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/TestableNotificationManagerService.java b/services/tests/uiservicestests/src/com/android/server/notification/TestableNotificationManagerService.java
index 8cf74fbf88b7..61a6985d473e 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/TestableNotificationManagerService.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/TestableNotificationManagerService.java
@@ -32,6 +32,7 @@ import java.util.Set;
 public class TestableNotificationManagerService extends NotificationManagerService {
     int countSystemChecks = 0;
     boolean isSystemUid = true;
+    boolean isSystemAppId = true;
     int countLogSmartSuggestionsVisible = 0;
     Set<Integer> mChannelToastsSent = new HashSet<>();
 
@@ -58,6 +59,12 @@ public class TestableNotificationManagerService extends NotificationManagerServi
     }
 
     @Override
+    protected boolean isCallingAppIdSystem() {
+        countSystemChecks++;
+        return isSystemUid || isSystemAppId;
+    }
+
+    @Override
     protected boolean isCallerSystemOrPhone() {
         countSystemChecks++;
         return isSystemUid;
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/ZenModeHelperTest.java b/services/tests/uiservicestests/src/com/android/server/notification/ZenModeHelperTest.java
index 4550b56f6fd0..2ccdcaace8bf 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/ZenModeHelperTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/ZenModeHelperTest.java
@@ -1672,6 +1672,36 @@ public class ZenModeHelperTest extends UiServiceTestCase {
     }
 
     @Test
+    public void testAddAutomaticZenRule_claimedSystemOwner() {
+        // Make sure anything that claims to have a "system" owner but not actually part of the
+        // system package still gets limited on number of rules
+        for (int i = 0; i < RULE_LIMIT_PER_PACKAGE; i++) {
+            ScheduleInfo si = new ScheduleInfo();
+            si.startHour = i;
+            AutomaticZenRule zenRule = new AutomaticZenRule("name" + i,
+                    new ComponentName("android", "ScheduleConditionProvider" + i),
+                    null, // configuration activity
+                    ZenModeConfig.toScheduleConditionId(si),
+                    new ZenPolicy.Builder().build(),
+                    NotificationManager.INTERRUPTION_FILTER_PRIORITY, true);
+            String id = mZenModeHelperSpy.addAutomaticZenRule("pkgname", zenRule, "test");
+            assertNotNull(id);
+        }
+        try {
+            AutomaticZenRule zenRule = new AutomaticZenRule("name",
+                    new ComponentName("android", "ScheduleConditionProviderFinal"),
+                    null, // configuration activity
+                    ZenModeConfig.toScheduleConditionId(new ScheduleInfo()),
+                    new ZenPolicy.Builder().build(),
+                    NotificationManager.INTERRUPTION_FILTER_PRIORITY, true);
+            String id = mZenModeHelperSpy.addAutomaticZenRule("pkgname", zenRule, "test");
+            fail("allowed too many rules to be created");
+        } catch (IllegalArgumentException e) {
+            // yay
+        }
+    }
+
+    @Test
     public void testAddAutomaticZenRule_CA() {
         AutomaticZenRule zenRule = new AutomaticZenRule("name",
                 null,