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AnisetteDataManager.swift
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//
// AnisetteDataManager.swift
// AltServer
//
// Created by Riley Testut on 11/16/19.
// Copyright © 2019 Riley Testut. All rights reserved.
//
import Foundation
import AppKit
private extension Bundle
{
struct ID
{
static let mail = "com.apple.mail"
static let altXPC = "com.rileytestut.AltXPC"
}
}
private extension ALTAnisetteData
{
func sanitize(byReplacingBundleID bundleID: String)
{
guard let range = self.deviceDescription.lowercased().range(of: "(" + bundleID.lowercased()) else { return }
var adjustedDescription = self.deviceDescription[..<range.lowerBound]
adjustedDescription += "(com.apple.dt.Xcode/3594.4.19)>"
self.deviceDescription = String(adjustedDescription)
}
}
class AnisetteDataManager: NSObject
{
static let shared = AnisetteDataManager()
private var anisetteDataCompletionHandlers: [String: (Result<ALTAnisetteData, Error>) -> Void] = [:]
private var anisetteDataTimers: [String: Timer] = [:]
private lazy var xpcConnection: NSXPCConnection = {
let connection = NSXPCConnection(serviceName: Bundle.ID.altXPC)
connection.remoteObjectInterface = NSXPCInterface(with: AltXPCProtocol.self)
connection.resume()
return connection
}()
private override init()
{
super.init()
DistributedNotificationCenter.default().addObserver(self, selector: #selector(AnisetteDataManager.handleAnisetteDataResponse(_:)), name: Notification.Name("com.rileytestut.AltServer.AnisetteDataResponse"), object: nil)
}
func requestAnisetteData(_ completion: @escaping (Result<ALTAnisetteData, Error>) -> Void)
{
if #available(macOS 10.15, *)
{
self.requestAnisetteDataFromXPCService { (result) in
do
{
let anisetteData = try result.get()
completion(.success(anisetteData))
}
catch CocoaError.xpcConnectionInterrupted
{
// SIP and/or AMFI are not disabled, so fall back to Mail plug-in.
self.requestAnisetteDataFromPlugin { (result) in
completion(result)
}
}
catch
{
completion(.failure(error))
}
}
}
else
{
self.requestAnisetteDataFromPlugin { (result) in
completion(result)
}
}
}
func isXPCAvailable(completion: @escaping (Bool) -> Void)
{
guard let proxy = self.xpcConnection.remoteObjectProxyWithErrorHandler({ (error) in
completion(false)
}) as? AltXPCProtocol else { return }
proxy.ping {
completion(true)
}
}
}
private extension AnisetteDataManager
{
@available(macOS 10.15, *)
func requestAnisetteDataFromXPCService(completion: @escaping (Result<ALTAnisetteData, Error>) -> Void)
{
guard let proxy = self.xpcConnection.remoteObjectProxyWithErrorHandler({ (error) in
print("Anisette XPC Error:", error)
completion(.failure(error))
}) as? AltXPCProtocol else { return }
proxy.requestAnisetteData { (anisetteData, error) in
anisetteData?.sanitize(byReplacingBundleID: Bundle.ID.altXPC)
completion(Result(anisetteData, error))
}
}
func requestAnisetteDataFromPlugin(completion: @escaping (Result<ALTAnisetteData, Error>) -> Void)
{
let requestUUID = UUID().uuidString
self.anisetteDataCompletionHandlers[requestUUID] = completion
let isMailRunning = NSWorkspace.shared.runningApplications.map { $0.bundleIdentifier }.contains { $0 == "com.apple.mail" }
if !isMailRunning, let mailApp = FileManager.default.urls(for: .applicationDirectory,in: .systemDomainMask).first?.appendingPathComponent("Mail.app") {
NSWorkspace.shared.open(mailApp)
}
let timer = Timer(timeInterval: 5.0, repeats: false) { (timer) in
self.finishRequest(forUUID: requestUUID, result: .failure(ALTServerError(.pluginNotFound)))
}
self.anisetteDataTimers[requestUUID] = timer
RunLoop.main.add(timer, forMode: .default)
DistributedNotificationCenter.default().postNotificationName(Notification.Name("com.rileytestut.AltServer.FetchAnisetteData"), object: nil, userInfo: ["requestUUID": requestUUID], options: .deliverImmediately)
}
@objc func handleAnisetteDataResponse(_ notification: Notification)
{
guard let userInfo = notification.userInfo, let requestUUID = userInfo["requestUUID"] as? String else { return }
if
let archivedAnisetteData = userInfo["anisetteData"] as? Data,
let anisetteData = try? NSKeyedUnarchiver.unarchivedObject(ofClass: ALTAnisetteData.self, from: archivedAnisetteData)
{
anisetteData.sanitize(byReplacingBundleID: Bundle.ID.mail)
self.finishRequest(forUUID: requestUUID, result: .success(anisetteData))
}
else
{
self.finishRequest(forUUID: requestUUID, result: .failure(ALTServerError(.invalidAnisetteData)))
}
}
func finishRequest(forUUID requestUUID: String, result: Result<ALTAnisetteData, Error>)
{
let completionHandler = self.anisetteDataCompletionHandlers[requestUUID]
self.anisetteDataCompletionHandlers[requestUUID] = nil
let timer = self.anisetteDataTimers[requestUUID]
self.anisetteDataTimers[requestUUID] = nil
timer?.invalidate()
completionHandler?(result)
}
}