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// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import Cocoa
class MacAppStoreUpdateDetector {
static func isUpdatingFromMacAppStore(quitAppleEvent: NSAppleEventDescriptor) -> Bool {
guard isQuitEvent(quitAppleEvent) else { return false }
guard let senderPIDDescriptor = quitAppleEvent.attributeDescriptor(forKeyword: keySenderPIDAttr) else { return false }
let pid = senderPIDDescriptor.int32Value
guard let executablePath = getExecutablePath(from: pid) else { return false }
wg_log(.debug, message: "aevt/quit Apple event received from: \(executablePath)")
if executablePath.hasPrefix("/System/Library/") {
let executableName = URL(fileURLWithPath: executablePath, isDirectory: false).lastPathComponent
return executableName == "com.apple.CommerceKit.StoreAEService"
}
return false
}
}
private func isQuitEvent(_ event: NSAppleEventDescriptor) -> Bool {
if let eventClassDescriptor = event.attributeDescriptor(forKeyword: keyEventClassAttr),
let eventIdDescriptor = event.attributeDescriptor(forKeyword: keyEventIDAttr) {
return eventClassDescriptor.typeCodeValue == kCoreEventClass && eventIdDescriptor.typeCodeValue == kAEQuitApplication
}
return false
}
private func getExecutablePath(from pid: pid_t) -> String? {
let bufferSize = Int(PATH_MAX)
var buffer = Data(capacity: bufferSize)
return buffer.withUnsafeMutableBytes { (ptr: UnsafeMutableRawBufferPointer) -> String? in
if let basePtr = ptr.baseAddress {
let byteCount = proc_pidpath(pid, basePtr, UInt32(bufferSize))
return byteCount > 0 ? String(cString: basePtr.bindMemory(to: CChar.self, capacity: bufferSize)) : nil
}
return nil
}
}
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