How to get SSID of currently connected Wifi Network in swift | iOS 14? - swift5

Question

I need to get ssid of currently connected network. The reason I need this is to enable my app to perform certain functions when connected to a specific network. Now I cant seem to figure it out as in how to get the ssid? I've read online and implemented following things.
-> Allowed user location
-> Logged in to Apple dev account and enabled Wifi access.
The function I am using is
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
if status == .authorizedAlways || status == .authorizedAlways {
NEHotspotNetwork.fetchCurrent { hotspotNetwork in
if let ssid = hotspotNetwork?.ssid {
print("SSID is \(ssid)")
}
}
}
}
But it is giving the following error
NEHotspotNetwork nehelper sent invalid result code [5] for Wi-Fi information request
What else am I missing here? Do i need to add anything else? Appreciate any help!

Answer 1

I have sorted out the way to get SSID of currently connected Wifi. Following are the pre-requisites to follow before writing the code.
-> You must have a paid developer account.
-> You must have a physical Device
-> You must enable Wifi-Entitlement by going to Target->Signing & Capabilities and adding Access WiFi Information or adding
<key>com.apple.developer.networking.wifi-info</key> <true/> directly to your entitlements file.
-> Allow location usage access from user
Then use this code in your class to get SSID.
import UIKit
import SystemConfiguration.CaptiveNetwork
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate {
var locationManager = CLLocationManager()
var currentNetworkInfos: Array<NetworkInfo>? {
get {
return SSID.fetchNetworkInfo()
}
}
let ssidLabel:UILabel = {
let lbl = UILabel()
lbl.translatesAutoresizingMaskIntoConstraints = false
return lbl
}()
let bssidLabel:UILabel = {
let lbl = UILabel()
lbl.translatesAutoresizingMaskIntoConstraints = false
return lbl
}()
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .yellow
view.addSubview(ssidLabel)
view.addSubview(bssidLabel)
NSLayoutConstraint.activate([
ssidLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
ssidLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor),
bssidLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor, constant: 0),
bssidLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: 20),
])
if #available(iOS 13.0, *) {
let status = CLLocationManager.authorizationStatus()
if status == .authorizedWhenInUse {
updateWiFi()
} else {
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
}
} else {
updateWiFi()
}
}
func updateWiFi() {
print("SSID: \(currentNetworkInfos?.first?.ssid ?? "")")
if let ssid = currentNetworkInfos?.first?.ssid {
ssidLabel.text = "SSID: \(ssid)"
}
if let bssid = currentNetworkInfos?.first?.bssid {
bssidLabel.text = "BSSID: \(bssid)"
}
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
if status == .authorizedWhenInUse {
updateWiFi()
}
}
}
public class SSID {
class func fetchNetworkInfo() -> [NetworkInfo]? {
if let interfaces: NSArray = CNCopySupportedInterfaces() {
var networkInfos = [NetworkInfo]()
for interface in interfaces {
let interfaceName = interface as! String
var networkInfo = NetworkInfo(interface: interfaceName,
success: false,
ssid: nil,
bssid: nil)
if let dict = CNCopyCurrentNetworkInfo(interfaceName as CFString) as NSDictionary? {
networkInfo.success = true
networkInfo.ssid = dict[kCNNetworkInfoKeySSID as String] as? String
networkInfo.bssid = dict[kCNNetworkInfoKeyBSSID as String] as? String
}
networkInfos.append(networkInfo)
}
return networkInfos
}
return nil
}
}
struct NetworkInfo {
var interface: String
var success: Bool = false
var ssid: String?
var bssid: String?
}

Answer 2

check https://developer.apple.com/contact/request/hotspot-helper/
Before using NEHotspotHelper, you must first be
granted a special entitlement
(com.apple.developer.networking.HotspotHelper)