66 lines
2.1 KiB
Swift
66 lines
2.1 KiB
Swift
// SPDX-License-Identifier: MIT
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// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
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import Foundation
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import os.log
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public class Logger {
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enum LoggerError: Error {
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case openFailure
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}
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static var global: Logger?
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var log: OpaquePointer
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var tag: String
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init(tagged tag: String, withFilePath filePath: String) throws {
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guard let log = open_log(filePath) else { throw LoggerError.openFailure }
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self.log = log
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self.tag = tag
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}
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deinit {
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close_log(self.log)
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}
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func log(message: String) {
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write_msg_to_log(log, tag, message.trimmingCharacters(in: .newlines))
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}
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func writeLog(to targetFile: String) -> Bool {
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return write_log_to_file(targetFile, self.log) == 0
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}
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static func configureGlobal(tagged tag: String, withFilePath filePath: String?) {
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if Logger.global != nil {
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return
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}
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guard let filePath = filePath else {
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os_log("Unable to determine log destination path. Log will not be saved to file.", log: OSLog.default, type: .error)
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return
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}
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guard let logger = try? Logger(tagged: tag, withFilePath: filePath) else {
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os_log("Unable to open log file for writing. Log will not be saved to file.", log: OSLog.default, type: .error)
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return
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}
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Logger.global = logger
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var appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "Unknown version"
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if let appBuild = Bundle.main.infoDictionary?["CFBundleVersion"] as? String {
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appVersion += " (\(appBuild))"
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}
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let goBackendVersion = WIREGUARD_GO_VERSION
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Logger.global?.log(message: "App version: \(appVersion); Go backend version: \(goBackendVersion)")
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}
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}
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func wg_log(_ type: OSLogType, staticMessage msg: StaticString) {
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os_log(msg, log: OSLog.default, type: type)
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Logger.global?.log(message: "\(msg)")
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}
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func wg_log(_ type: OSLogType, message msg: String) {
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os_log("%{public}s", log: OSLog.default, type: type, msg)
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Logger.global?.log(message: msg)
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}
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