// SPDX-License-Identifier: MIT // Copyright © 2018-2019 WireGuard LLC. All Rights Reserved. import Foundation import os.log extension FileManager { static var appGroupId: String? { #if os(iOS) let appGroupIdInfoDictionaryKey = "com.wireguard.ios.app_group_id" #elseif os(macOS) let appGroupIdInfoDictionaryKey = "com.wireguard.macos.app_group_id" #else #error("Unimplemented") #endif return Bundle.main.object(forInfoDictionaryKey: appGroupIdInfoDictionaryKey) as? String } private static var sharedFolderURL: URL? { guard let appGroupId = FileManager.appGroupId else { os_log("Cannot obtain app group ID from bundle", log: OSLog.default, type: .error) return nil } guard let sharedFolderURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: appGroupId) else { wg_log(.error, message: "Cannot obtain shared folder URL") return nil } return sharedFolderURL } static var logFileURL: URL? { return sharedFolderURL?.appendingPathComponent("tunnel-log.bin") } static var networkExtensionLastErrorFileURL: URL? { return sharedFolderURL?.appendingPathComponent("last-error.txt") } static func deleteFile(at url: URL) -> Bool { do { try FileManager.default.removeItem(at: url) } catch { return false } return true } }