Isolating Role logic into a static lib for PermissionController

Bug: 249850342
Test: atest
Change-Id: I432cc695f35b147c5c7658bade8f936be9f49a4c

10 files changed, 200 insertions, 179 deletions

diff --git a/PermissionController/src/com/android/permissioncontroller/role/model/RoleParserInitializer.java b/PermissionController/src/com/android/permissioncontroller/role/model/RoleParserInitializer.java
new file mode 100644
index 000000000..b1c9e3e1d
--- /dev/null
+++ b/PermissionController/src/com/android/permissioncontroller/role/model/RoleParserInitializer.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.permissioncontroller.role.model;
+
+import com.android.permissioncontroller.R;
+import com.android.role.controller.model.RoleParser;
+
+/**
+ * Initialize the function to retrieve the roles.xml resource from a context within
+ * PermissionController APK
+ */
+public class RoleParserInitializer {
+
+    /**
+     * Initialize the function to retrieve the roles.xml resource from a context within
+     * PermissionController APK
+     */
+    public static void initialize() {
+        RoleParser.sGetRolesXml = context -> context.getResources().getXml(R.xml.roles);
+    }
+}
diff --git a/PermissionController/src/com/android/permissioncontroller/role/model/UserDeniedManager.java b/PermissionController/src/com/android/permissioncontroller/role/model/UserDeniedManager.java
new file mode 100644
index 000000000..afe35f670
--- /dev/null
+++ b/PermissionController/src/com/android/permissioncontroller/role/model/UserDeniedManager.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.permissioncontroller.role.model;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.ArraySet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.permissioncontroller.Constants;
+
+import java.util.Collections;
+import java.util.Set;
+
+/**
+ * Manages user denied status for requesting roles.
+ */
+public class UserDeniedManager {
+
+    @Nullable
+    private static UserDeniedManager sInstance;
+
+    private final SharedPreferences mPreferences;
+
+    /**
+     * Get a singleton instance of this class
+     *
+     * @param context the context for retrieving shared preferences.
+     *
+     * @return the singleton instance of this class
+     */
+    @NonNull
+    public static UserDeniedManager getInstance(@NonNull Context context) {
+        if (sInstance == null) {
+            sInstance = new UserDeniedManager(context);
+        }
+        return sInstance;
+    }
+
+    private UserDeniedManager(@NonNull Context context) {
+        context = context.getApplicationContext();
+        mPreferences = context.getSharedPreferences(Constants.REQUEST_ROLE_USER_DENIED_FILE,
+                Context.MODE_PRIVATE);
+    }
+
+    /**
+     * Check whether an application has been denied for a role once.
+     *
+     * @param roleName the name of the role
+     * @param packageName the package name of the application
+     *
+     * @return whether the application has been denied for the role once
+     */
+    public boolean isDeniedOnce(@NonNull String roleName, @NonNull String packageName) {
+        return isDenied(roleName, packageName, false);
+    }
+
+    /**
+     * Remember that an application has been denied for a role once.
+     *
+     * @param roleName the name of the role
+     * @param packageName the package name of the application
+     */
+    public void setDeniedOnce(@NonNull String roleName, @NonNull String packageName) {
+        setDenied(roleName, packageName, false, true);
+    }
+
+    /**
+     * Check whether an application is always denied for a role.
+     *
+     * @param roleName the name of the role
+     * @param packageName the package name of the application
+     *
+     * @return whether the application is always denied for the role
+     */
+    public boolean isDeniedAlways(@NonNull String roleName, @NonNull String packageName) {
+        return isDenied(roleName, packageName, true);
+    }
+
+    /**
+     * Remember that an application is always denied for a role.
+     *
+     * @param roleName the name of the role
+     * @param packageName the package name of the application
+     */
+    public void setDeniedAlways(@NonNull String roleName, @NonNull String packageName) {
+        setDenied(roleName, packageName, true, true);
+    }
+
+    /**
+     * Forget about whether an application is denied for a role, once or always.
+     *
+     * @param roleName the name of the role
+     * @param packageName the package name of the application
+     */
+    public void clearDenied(@NonNull String roleName, @NonNull String packageName) {
+        setDenied(roleName, packageName, false, false);
+        setDenied(roleName, packageName, true, false);
+    }
+
+    /**
+     * Forget about whether an application is denied for any of the roles, once or always.
+     *
+     * @param packageName the package name of the application
+     */
+    public void clearPackageDenied(@NonNull String packageName) {
+        mPreferences.edit()
+                .remove(getKey(packageName, false))
+                .remove(getKey(packageName, true))
+                .apply();
+    }
+
+    @NonNull
+    private static String getKey(@NonNull String packageName, boolean always) {
+        return (always ? Constants.REQUEST_ROLE_USER_DENIED_ALWAYS_KEY_PREFIX
+                : Constants.REQUEST_ROLE_USER_DENIED_ONCE_KEY_PREFIX) + packageName;
+    }
+
+    private boolean isDenied(@NonNull String roleName, @NonNull String packageName,
+            boolean always) {
+        String key = getKey(packageName, always);
+        return mPreferences.getStringSet(key, Collections.emptySet()).contains(roleName);
+    }
+
+    private void setDenied(@NonNull String roleName, @NonNull String packageName, boolean always,
+            boolean denied) {
+        String key = getKey(packageName, always);
+        Set<String> roleNames = mPreferences.getStringSet(key, Collections.emptySet());
+        if (roleNames.contains(roleName) == denied) {
+            return;
+        }
+        roleNames = new ArraySet<>(roleNames);
+        if (denied) {
+            roleNames.add(roleName);
+        } else {
+            roleNames.remove(roleName);
+        }
+        if (roleName.isEmpty()) {
+            mPreferences.edit().remove(key).apply();
+        } else {
+            mPreferences.edit().putStringSet(key, roleNames).apply();
+        }
+    }
+}
diff --git a/PermissionController/src/com/android/permissioncontroller/role/service/ClearUserDeniedReceiver.java b/PermissionController/src/com/android/permissioncontroller/role/service/ClearUserDeniedReceiver.java
index ae54154c6..862cbba2d 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/service/ClearUserDeniedReceiver.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/service/ClearUserDeniedReceiver.java
@@ -22,7 +22,7 @@ import android.content.Intent;
 
 import androidx.annotation.NonNull;
 
-import com.android.role.controller.model.UserDeniedManager;
+import com.android.permissioncontroller.role.model.UserDeniedManager;
 
 import java.util.Objects;
 
diff --git a/PermissionController/src/com/android/permissioncontroller/role/service/RoleSearchIndexablesProvider.java b/PermissionController/src/com/android/permissioncontroller/role/service/RoleSearchIndexablesProvider.java
index db909a47e..1c845ee3a 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/service/RoleSearchIndexablesProvider.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/service/RoleSearchIndexablesProvider.java
@@ -27,9 +27,9 @@ import androidx.annotation.Nullable;
 
 import com.android.permissioncontroller.R;
 import com.android.permissioncontroller.permission.service.BaseSearchIndexablesProvider;
+import com.android.permissioncontroller.role.model.RoleParserInitializer;
 import com.android.permissioncontroller.role.utils.RoleUiBehaviorUtils;
 import com.android.role.controller.model.Role;
-import com.android.role.controller.model.RoleParserInitializer;
 import com.android.role.controller.model.Roles;
 
 /**
diff --git a/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleActivity.java b/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleActivity.java
index 5167cfba8..3a4312c00 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleActivity.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleActivity.java
@@ -34,11 +34,11 @@ import androidx.fragment.app.FragmentActivity;
 
 import com.android.permissioncontroller.PermissionControllerStatsLog;
 import com.android.permissioncontroller.permission.utils.CollectionUtils;
+import com.android.permissioncontroller.role.model.UserDeniedManager;
 import com.android.permissioncontroller.role.utils.PackageUtils;
 import com.android.permissioncontroller.role.utils.RoleUiBehaviorUtils;
 import com.android.role.controller.model.Role;
 import com.android.role.controller.model.Roles;
-import com.android.role.controller.model.UserDeniedManager;
 
 import java.util.List;
 import java.util.Objects;
diff --git a/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleFragment.java b/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleFragment.java
index 686703a7f..a5bd90dc2 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleFragment.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/ui/RequestRoleFragment.java
@@ -52,10 +52,10 @@ import com.android.permissioncontroller.PermissionControllerStatsLog;
 import com.android.permissioncontroller.R;
 import com.android.permissioncontroller.permission.utils.PackageRemovalMonitor;
 import com.android.permissioncontroller.permission.utils.Utils;
+import com.android.permissioncontroller.role.model.UserDeniedManager;
 import com.android.permissioncontroller.role.utils.PackageUtils;
 import com.android.role.controller.model.Role;
 import com.android.role.controller.model.Roles;
-import com.android.role.controller.model.UserDeniedManager;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/PermissionController/src/com/android/permissioncontroller/role/ui/behavior/HomeRoleUiBehavior.java b/PermissionController/src/com/android/permissioncontroller/role/ui/behavior/HomeRoleUiBehavior.java
index ac8538b9e..72c241b30 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/ui/behavior/HomeRoleUiBehavior.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/ui/behavior/HomeRoleUiBehavior.java
@@ -37,7 +37,7 @@ import com.android.permissioncontroller.permission.utils.Utils;
 import com.android.permissioncontroller.role.model.VisibilityMixin;
 import com.android.permissioncontroller.role.ui.TwoTargetPreference;
 import com.android.permissioncontroller.role.utils.UserUtils;
-import com.android.role.controller.model.HomeRoleBehavior;
+import com.android.role.controller.behavior.HomeRoleBehavior;
 import com.android.role.controller.model.Role;
 
 /***
diff --git a/PermissionController/src/com/android/permissioncontroller/role/utils/NotificationUtils.java b/PermissionController/src/com/android/permissioncontroller/role/utils/NotificationUtils.java
deleted file mode 100644
index 08607594c..000000000
--- a/PermissionController/src/com/android/permissioncontroller/role/utils/NotificationUtils.java
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.permissioncontroller.role.utils;
-
-import android.app.NotificationManager;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
-import android.content.pm.ServiceInfo;
-import android.service.notification.NotificationListenerService;
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
-
-/**
- * Utility methods about Notification permissions.
- */
-public final class NotificationUtils {
-
-    public static final String LOG_TAG = NotificationUtils.class.getSimpleName();
-
-    private NotificationUtils() {}
-
-    /**
-     * Grants the NotificationListener access.
-     *
-     * @param context     the {@code Context} to retrieve system services
-     * @param packageName the package name implements the NotificationListener
-     */
-    public static void grantNotificationAccessForPackage(@NonNull Context context,
-            @NonNull String packageName) {
-        setNotificationGrantStateForPackage(context, packageName, true);
-    }
-
-    /**
-     * Revokes the NotificationListener access.
-     *
-     * @param context     the {@code Context} to retrieve system services
-     * @param packageName the package name implements the NotificationListener
-     */
-    public static void revokeNotificationAccessForPackage(@NonNull Context context,
-            @NonNull String packageName) {
-        setNotificationGrantStateForPackage(context, packageName, false);
-    }
-
-
-    private static void setNotificationGrantStateForPackage(@NonNull Context context,
-            @NonNull String packageName, boolean granted) {
-        List<ComponentName> notificationListenersForPackage =
-                getNotificationListenersForPackage(packageName, context);
-        NotificationManager notificationManager =
-                context.getSystemService(NotificationManager.class);
-        for (ComponentName componentName : notificationListenersForPackage) {
-            notificationManager.setNotificationListenerAccessGranted(
-                    componentName, granted, false);
-        }
-    }
-
-    private static List<ComponentName> getNotificationListenersForPackage(
-            @NonNull String packageName, @NonNull Context context) {
-        List<ResolveInfo> allListeners = context.getPackageManager().queryIntentServices(
-                new Intent(NotificationListenerService.SERVICE_INTERFACE).setPackage(packageName),
-                PackageManager.MATCH_DIRECT_BOOT_AWARE | PackageManager.MATCH_DIRECT_BOOT_UNAWARE);
-        ArrayList<ComponentName> pkgListeners = new ArrayList<>();
-        for (ResolveInfo service : allListeners) {
-            ServiceInfo serviceInfo = service.serviceInfo;
-            if (Objects.equals(serviceInfo.permission,
-                    android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE)
-                    && packageName.equals(serviceInfo.packageName)) {
-                pkgListeners.add(new ComponentName(serviceInfo.packageName, serviceInfo.name));
-            }
-        }
-        Log.d(LOG_TAG, "getNotificationListenersForPackage(" + packageName + "): " + pkgListeners);
-        return pkgListeners;
-    }
-
-}
diff --git a/PermissionController/src/com/android/permissioncontroller/role/utils/PackageUtils.java b/PermissionController/src/com/android/permissioncontroller/role/utils/PackageUtils.java
index 67d9ece44..9aaa07ee0 100644
--- a/PermissionController/src/com/android/permissioncontroller/role/utils/PackageUtils.java
+++ b/PermissionController/src/com/android/permissioncontroller/role/utils/PackageUtils.java
@@ -18,7 +18,6 @@ package com.android.permissioncontroller.role.utils;
 
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.os.UserHandle;
 
@@ -33,40 +32,6 @@ public final class PackageUtils {
     private PackageUtils() {}
 
     /**
-     * Retrieve the {@link PackageInfo} of an application.
-     *
-     * @param packageName the package name of the application
-     * @param extraFlags the extra flags to pass to {@link PackageManager#getPackageInfo(String,
-     *                   int)}
-     * @param context the {@code Context} to retrieve system services
-     *
-     * @return the {@link PackageInfo} of the application, or {@code null} if not found
-     */
-    @Nullable
-    public static PackageInfo getPackageInfo(@NonNull String packageName, int extraFlags,
-            @NonNull Context context) {
-        PackageManager packageManager = context.getPackageManager();
-        try {
-            return packageManager.getPackageInfo(packageName, PackageManager.MATCH_DIRECT_BOOT_AWARE
-                    | PackageManager.MATCH_DIRECT_BOOT_UNAWARE | extraFlags);
-        } catch (PackageManager.NameNotFoundException e) {
-            return null;
-        }
-    }
-
-    /**
-     * Retrieve if a package is a system package.
-     *
-     * @param packageName the name of the package
-     * @param context the {@code Context} to retrieve system services
-     *
-     * @return whether the package is a system package
-     */
-    public static boolean isSystemPackage(@NonNull String packageName, @NonNull Context context) {
-        return getPackageInfo(packageName, PackageManager.MATCH_SYSTEM_ONLY, context) != null;
-    }
-
-    /**
      * Retrieve the {@link ApplicationInfo} of an application.
      *
      * @param packageName the package name of the application
diff --git a/PermissionController/src/com/android/permissioncontroller/role/utils/RoleManagerCompat.java b/PermissionController/src/com/android/permissioncontroller/role/utils/RoleManagerCompat.java
deleted file mode 100644
index 47f96adfb..000000000
--- a/PermissionController/src/com/android/permissioncontroller/role/utils/RoleManagerCompat.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.permissioncontroller.role.utils;
-
-import android.app.role.RoleManager;
-
-import androidx.annotation.NonNull;
-
-import com.android.modules.utils.build.SdkLevel;
-
-/**
- * Helper for accessing features in {@link RoleManager}.
- */
-public class RoleManagerCompat {
-
-    private RoleManagerCompat() {}
-
-    /**
-     * @see RoleManager#isBypassingRoleQualification()
-     */
-    public static boolean isBypassingRoleQualification(@NonNull RoleManager roleManager) {
-        if (SdkLevel.isAtLeastS()) {
-            return roleManager.isBypassingRoleQualification();
-        } else {
-            return false;
-        }
-    }
-}