Keychain Access

I'm trying to get the password of the current user's wifi. I'm trying the Security framework mentioned by @eskimo here, but it's not working. I'm trying the CLI command

public func getPassword(ssid: String) -> String? {
    let command = "security find-generic-password -l \"\(ssid)\" -D 'AirPort network password' -w"
    let result = shell(command)
    return result
}
private func shell(_ command: String, lauchPath: String = "/bin/zsh") -> String? {
    let task = Process()
    let pipe = Pipe()
    
    task.standardOutput = pipe
    task.standardError = pipe
    task.arguments = ["-c", command]
    task.launchPath = "/bin/zsh"
    task.launch()
    
    let data = pipe.fileHandleForReading.readDataToEndOfFile()
    let output = String(data: data, encoding: .utf8)?
        .trimmingCharacters(in: .newlines)
    
    return output
}

I'm now trying AppKit so I declared:

@IBOutlet var passwordLabel: NSTextField!
var password: String?
var wifi: String?
...
// applicationDidFinishLaunching(_ aNotification:)
wifi = CWWiFiClient.shared().interface()?.ssid()
....
password = getPassword(ssid: wifi ?? "Unknown")
passwordLabel.stringValue = password ?? "ERROR"

in applicationDidFinishLaunching(_ aNotification:)

it worked.

• Note: on my dialog, there's only Deny and Allow, not Deny, Allow Once, Always Allow

I added a refresh button next to the password label and it won't work when I press the button:

@IBAction func RefreshPassword(_ sender: NSButton) {
    wifi = CWWiFiClient.shared().interface()?.ssid()
    password = getPassword(ssid: wifi)
    print(password)
    if let i = wifi {
        DeviceWiFiLabel.stringValue = i
        DeviceWiFiLabel.textColor = .systemGreen
        passwordLabel.textColor = .textColor
    } else {
        DeviceWiFiLabel.stringValue = "None"
        DeviceWiFiLabel.textColor = .systemOrange
        passwordLabel.textColor = .red
    }
    passwordLabel.stringValue = password ?? "ERROR"
}

The dialog still pops open but I can't enter text when the textfield is focused, that is, no text appears when I hit a key when textfield focused. When I dismiss using the "Deny" button, sometimes a message like these appears in the console:

2022-08-24 05:21:24.034479+0800 MyApp[22457:564086] Detected potentially harmful notification post rate of <some sort of float-point number that always changes and about 300) notifications per second

I can't always reproduce the issue.

Any idea why?