swift - 在 cocoa 应用程序中运行终端命令

Question

我在 cocoa 应用程序上运行我的代码以运行一些命令行脚本时遇到问题

此功能在使用命令行工具时运行顺畅，但在使用带有一些 On Off UI 的完整 cocoa 应用程序时它根本不起作用

我的脚本应该打开/关闭 http 和 https 代理

这是我的功能:

    private func runTask(_ cmd: String) {

        // Create a Task instance
        let task = Process()

        // Set the task parameters
        task.launchPath = "/bin/sh"
        task.arguments = ["-c", String(format:"%@", cmd)]

        // Create a Pipe and make the task
        // put all the output there
        let pipe = Pipe()
        task.standardOutput = pipe

        // Launch the task
        task.launch()

        // Get the data
        let data = pipe.fileHandleForReading.readDataToEndOfFile()
        guard let output = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return }

        print(output)
    }

这是我的完整 ViewController 类:

import Cocoa

class ViewController: NSViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    @IBAction func onButtonTapped(_ sender: NSButton) {
        print("onButtonTapped")
        let selected: Switch = .on
        let listOfNetworkCommands: String = [
            #"networksetup -setwebproxystate "Wi-fi" \#(selected)"#, // switch http proxy
            #"networksetup -setsecurewebproxystate "Wi-fi" \#(selected)"#, // switch https proxy
            #"networksetup -setpassiveftp "Wi-fi" \#(selected)"# // switch passive ftp
            ].joined(separator: " && ")

        runTask(listOfNetworkCommands)
    }

    @IBAction func offButtonTapped(_ sender: NSButton) {
        print("onButtonTapped")
        let selected: Switch = .off
        let listOfNetworkCommands: String = [
            #"networksetup -setwebproxystate "Wi-fi" \#(selected)"#, // switch http proxy
            #"networksetup -setsecurewebproxystate "Wi-fi" \#(selected)"#, // switch https proxy
            #"networksetup -setpassiveftp "Wi-fi" \#(selected)"# // switch passive ftp
            ].joined(separator: " && ")

        runTask(listOfNetworkCommands)
    }

    enum Switch: String {
        case on, off
    }

    private func runTask(_ cmd: String) {

        // Create a Task instance
        let task = Process()

        // Set the task parameters
        task.launchPath = "/bin/sh"
        task.arguments = ["-c", String(format:"%@", cmd)]

        // Create a Pipe and make the task
        // put all the output there
        let pipe = Pipe()
        task.standardOutput = pipe

        // Launch the task
        task.launch()

        // Get the data
        let data = pipe.fileHandleForReading.readDataToEndOfFile()
        guard let output = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return }

        print(output)
    }

}

知道为什么我的函数没有在 cocoa 应用程序中触发吗？

Answer 1

通过在您的 Cocoa 应用程序中禁用 App Sandbox 找到简单的答案(在您的 Project app target > Capabilities 选项卡 > App Sandbox switch 下找到)。您会发现您被沙盒异常阻止了。禁用沙盒应该可以解决您的问题。

如果您过滤您的应用名称或沙盒进程，您也可以在 Console.app 中看到这一点。启用沙盒后，您可能会有这样的条目:

error 00:21:57.502273 +0000 sandboxd Sandbox: sh(17363) deny(1) file-read-data /dev/ttys003