src.com.android.server.uwb.UwbInjector Maven / Gradle / Ivy
/*
* 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.server.uwb;
import static android.Manifest.permission.UWB_RANGING;
import static android.content.PermissionChecker.PERMISSION_GRANTED;
import android.annotation.NonNull;
import android.content.AttributionSource;
import android.content.Context;
import android.content.PermissionChecker;
import android.os.IBinder;
import android.os.ServiceManager;
import android.uwb.IUwbAdapter;
/**
* To be used for dependency injection (especially helps mocking static dependencies).
*/
public class UwbInjector {
private static final String TAG = "UwbInjector";
private static final String VENDOR_SERVICE_NAME = "uwb_vendor";
private final Context mContext;
public UwbInjector(@NonNull Context context) {
mContext = context;
}
/**
* @return Returns the vendor service handle.
*/
public IUwbAdapter getVendorService() {
IBinder b = ServiceManager.getService(VENDOR_SERVICE_NAME);
if (b == null) return null;
return IUwbAdapter.Stub.asInterface(b);
}
/**
* Throws security exception if the UWB_RANGING permission is not granted for the calling app.
*
* Should be used in situations where the app op should not be noted.
*/
public void enforceUwbRangingPermissionForPreflight(
@NonNull AttributionSource attributionSource) {
if (!attributionSource.checkCallingUid()) {
throw new SecurityException("Invalid attribution source " + attributionSource);
}
int permissionCheckResult = PermissionChecker.checkPermissionForPreflight(
mContext, UWB_RANGING, attributionSource);
if (permissionCheckResult != PERMISSION_GRANTED) {
throw new SecurityException("Caller does not hold UWB_RANGING permission");
}
}
/**
* Returns true if the UWB_RANGING permission is granted for the calling app.
*
*
Should be used in situations where data will be delivered and hence the app op should
* be noted.
*/
public boolean checkUwbRangingPermissionForDataDelivery(
@NonNull AttributionSource attributionSource, @NonNull String message) {
int permissionCheckResult = PermissionChecker.checkPermissionForDataDelivery(
mContext, UWB_RANGING, -1, attributionSource, message);
return permissionCheckResult == PERMISSION_GRANTED;
}
}