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Commit 5fb07056 authored by Valentin Iftime's avatar Valentin Iftime Committed by Iavor-Valentin Iftime
Browse files

[DO NO MERGE] Enforce INTERACT_ACROSS_USERS_FULL permission for NotificationAccessDetails

 When using EXTRA_USER_HANDLE, check for INTERACT_ACROSS_USERS_FULL permission on calling package.

Bug: 259385017
Test: 1. Build a test app that creates and starts an intent to NOTIFICATION_LISTENER_DETAIL_SETTINGS while setting the intent extra  android.intent.extra.user_handle to UserHandle(secondaryUserId).
 2. Create and switch to a secondary user
Settings > System > Multiple users > Allow multiple users > Add user > Switch to New user
 3. Open Settings > Notifications > Device & app notifications and choose an app from the list (uses android.permission.BIND_NOTIFICATION_LISTENER_SERVICE). Enable Device & app notifications for selected app and disable all attributed permissions.
 4. Switch back to the Owner user.
 5. Get the userId of the secondary user: adb shell pm list users.
 6. Open the test app and enter the userId for the secondary user and the component name that uses android.permission.BIND_NOTIFICATION_LISTENER_SERVICE.
 8. In the settings window that open, enable all 4 sub-options.
 9. Switch to the secondary user and note that the all sub-options for the app are disabled.

Change-Id: I875b9f2fc32c252acdcf8374a14067836e0f1ac6
Merged-In: I875b9f2fc32c252acdcf8374a14067836e0f1ac6
parent 86914bed
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+40 −0
Original line number Diff line number Diff line
@@ -16,6 +16,9 @@

package com.android.settings.applications.specialaccess.notificationaccess;

import static android.content.pm.PackageManager.PERMISSION_GRANTED;

import android.Manifest;
import android.app.Activity;
import android.app.NotificationManager;
import android.app.settings.SettingsEnums;
@@ -30,6 +33,7 @@ import android.os.Bundle;
import android.os.UserManager;
import android.provider.Settings;
import android.service.notification.NotificationListenerService;
import android.text.TextUtils;
import android.util.IconDrawableFactory;
import android.util.Log;
import android.util.Slog;
@@ -42,6 +46,7 @@ import androidx.preference.SwitchPreference;
import com.android.settings.R;
import com.android.settings.applications.AppInfoBase;
import com.android.settings.overlay.FeatureFactory;
import com.android.settings.password.PasswordUtils;
import com.android.settings.widget.EntityHeaderController;
import com.android.settingslib.applications.AppUtils;

@@ -139,6 +144,41 @@ public class NotificationAccessDetails extends AppInfoBase {
        return null;
    }

    @Override
    protected String retrieveAppEntry() {
        final Bundle args = getArguments();
        final Intent intent = (args == null) ?
                getIntent() : (Intent) args.getParcelable("intent");
        
        if (intent != null && intent.hasExtra(Intent.EXTRA_USER_HANDLE)) {
            if (!hasInteractAcrossUsersPermission()) {
                finish();
            }
        }

        return super.retrieveAppEntry();
    }

    private boolean hasInteractAcrossUsersPermission() {
        final String callingPackageName = PasswordUtils.getCallingAppPackageName(
                getActivity().getActivityToken());

        if (TextUtils.isEmpty(callingPackageName)) {
            Log.w(TAG, "Not able to get calling package name for permission check");
            return false;
        }

        if (getContext().getPackageManager().checkPermission(
                Manifest.permission.INTERACT_ACROSS_USERS_FULL, callingPackageName)
                != PERMISSION_GRANTED) {
            Log.w(TAG, "Package " + callingPackageName + " does not have required permission "
                    + Manifest.permission.INTERACT_ACROSS_USERS_FULL);
            return false;
        }

        return true;
    }

    public void updatePreference(SwitchPreference preference) {
        final CharSequence label = mPackageInfo.applicationInfo.loadLabel(mPm);
        preference.setChecked(isServiceEnabled(mComponentName));