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//
// AppDelegate.swift
// DWA140Menu
//
// Created by FivePixels on 9/3/18.
// Copyright © 2018 FivePixels. All rights reserved.
//
import Cocoa
import Foundation
// lines 14 - 96 https://stackoverflow.com/a/39175667
struct Networking {
enum NetworkInterfaceType: String, CustomStringConvertible {
case Ethernet = "en2"
case Unknown = ""
var description: String {
switch self {
case .Ethernet:
return "Ethernet"
case .Unknown:
return "Unknown"
}
}
}
static var networkInterfaceType: NetworkInterfaceType {
if let name = Networking().getInterfaces().first?.name, let type = NetworkInterfaceType(rawValue: name) {
return type
}
return .Unknown
}
static var isConnectedByEthernet: Bool {
let networking = Networking()
for addr in networking.getInterfaces() {
if addr.name == NetworkInterfaceType.Ethernet.rawValue {
return true
}
}
return false
}
func getInterfaces() -> [(name : String, addr: String, mac : String)] {
var addresses = [(name : String, addr: String, mac : String)]()
var nameToMac = [ String: String ]()
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return [] }
guard let firstAddr = ifaddr else { return [] }
// For each interface ...
for ptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let flags = Int32(ptr.pointee.ifa_flags)
if var addr = ptr.pointee.ifa_addr {
let name = String(cString: ptr.pointee.ifa_name)
// Check for running IPv4, IPv6 interfaces. Skip the loopback interface.
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
switch Int32(addr.pointee.sa_family) {
case AF_LINK:
nameToMac[name] = withUnsafePointer(to: &addr) { unsafeAddr in
unsafeAddr.withMemoryRebound(to: sockaddr_dl.self, capacity: 1) { dl in
dl.withMemoryRebound(to: Int8.self, capacity: 1) { dll in
let lladdr = UnsafeRawBufferPointer(start: dll + 8 + Int(dl.pointee.sdl_nlen), count: Int(dl.pointee.sdl_alen))
if lladdr.count == 6 {
return lladdr.map { String(format:"%02hhx", $0)}.joined(separator: ":")
} else {
return nil
}
}
}
}
case AF_INET, AF_INET6:
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
if (getnameinfo(addr, socklen_t(addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST) == 0) {
let address = String(cString: hostname)
addresses.append( (name: name, addr: address, mac : "") )
}
default:
break
}
}
}
}
freeifaddrs(ifaddr)
// Now add the mac address to the tuples:
for (i, addr) in addresses.enumerated() {
if let mac = nameToMac[addr.name] {
addresses[i] = (name: addr.name, addr: addr.addr, mac : mac)
}
}
return addresses
}
}
@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
let statusItem = NSStatusBar.system.statusItem(withLength:NSStatusItem.squareLength)
@objc func changeIcon() {
// change the icon based on the current state (only called on application launch)
if let button = statusItem.button {
if Networking.isConnectedByEthernet {
button.image = NSImage(named: "WifiConnected")
} else {
button.image = NSImage(named: "WifiError")
}
}
}
@objc func openCredits() {
NSWorkspace.shared.open((URL(string:"https://github.com/fivepixels/dwa140shortcut") ?? nil)!)
}
@objc func ethStatus() -> String {
// check if the device is connected by Ethernet
if Networking.isConnectedByEthernet {
return "USB WiFi is connected."
} else {
return "USB WiFi is disconnected."
}
}
@objc func refreshStatus() {
// recreate a new instance of the application
let url = URL(fileURLWithPath: Bundle.main.resourcePath!)
let path = url.deletingLastPathComponent().deletingLastPathComponent().absoluteString
let task = Process()
task.launchPath = "/usr/bin/open"
task.arguments = [path]
task.launch()
exit(0)
}
@objc func openDWA() {
// opens the DWA menu *if it exists* on the computer.
let fileman = FileManager.default
let alluserspath = "/Library/PreferencePanes/DWA-140WirelessUtility.prefPane"
let currentuserpath = "~/Library/PreferencePanes/DWA-140WirelessUtility.prefPane"
if fileman.fileExists(atPath: alluserspath) {
NSWorkspace.shared.open(URL(fileURLWithPath: alluserspath)) }
else if fileman.fileExists(atPath: currentuserpath) {
NSWorkspace.shared.open(URL(fileURLWithPath: currentuserpath))
} else {
// don't do anything, preference pane doesn't exist.
}
}
@objc func openNetwork() {
// open the Network pane, no need to check because every Mac *should* have this.
NSWorkspace.shared.open(URL(fileURLWithPath: "/System/Library/PreferencePanes/Network.prefPane"))
}
func applicationDidFinishLaunching(_ aNotification: Notification) {
// after the application launches, change the icon accordingly and create the menu.
changeIcon()
constructMenu()
}
func applicationWillTerminate(_ aNotification: Notification) {
// Insert code here to tear down your application
}
func constructMenu() {
// create the menu, with titles, actions, and keyEquivalents. didn't include many keyEquivs because the menu has to be open..
let menu = NSMenu()
menu.addItem(NSMenuItem(title: "DWA-140 Shortcut (GitHub)", action: #selector(openCredits), keyEquivalent: ""))
menu.addItem(NSMenuItem.separator())
menu.addItem(NSMenuItem(title: ethStatus(), action: nil, keyEquivalent: ""))
menu.addItem(NSMenuItem(title: "Refresh Status", action: #selector(refreshStatus), keyEquivalent: "r"))
menu.addItem(NSMenuItem(title: "Open DWA-140" , action: #selector(openDWA), keyEquivalent: "t1"))
menu.addItem(NSMenuItem(title: "Network Preferences" , action: #selector(openNetwork), keyEquivalent: ""))
menu.addItem(NSMenuItem.separator())
menu.addItem(NSMenuItem(title: "Quit", action: #selector(NSApplication.terminate(_:)), keyEquivalent: ""))
statusItem.menu = menu
}
}
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