从macOS中的授权插件机制读取任何文件

下面的代码在控制台应用程序中运行良好，但在macOS授权插件的机制中调用时无法读取任何文件（返回false）

func readConfigFile() -> Bool {
    globalLogger("readConfigFile: Start")
    //this is the file. we will write to and read from it
    let file = "/Users/Shared/macLA/mlaConfig.txt"
    let text = "some text1" //just a text
    let fileURL = URL(fileURLWithPath:file)
    globalLogger("readConfigFile: fileURL= \(fileURL)")
    //writing
    do {
        globalLogger("readConfigFile: writing")
        try text.write(to: fileURL, atomically: false, encoding: .utf8)
    }
    catch {
        /* error handling here */
        globalLogger("readConfigFile: error writing")
        return false
    }
    //reading
    do {
        let text2 = try String(contentsOf: fileURL, encoding: .utf8)
        globalLogger("file content = \(text2)")
    }
    catch {
        /* error handling here */
        globalLogger("readConfigFile: error reading")
        return false
    }
    globalLogger("readConfigFile: End1")
    return true
}

我得到的日志是：

mechanism -1 will invoke
invoke
readConfigFile: Start
readConfigFile: fileURL= file:///Users/Shared/macLA/mlaConfig.txt
readConfigFile: writing
readConfigFile: error writing

使用Xcode 12.0.1和swift 5.0

我已经用管理员和普通权限进行了测试。 我必须从文件中读取一些配置文本，这样任何用户都可以更改配置，而无需重新构建授权插件包。那么，还有其他选择吗

另一次尝试是在捆绑包中添加文件。它确实奏效了。我使用的代码复制到下面

func readConfigFile() -> Bool {
    globalLogger("readConfigFile: Start")
    //this is the file. we will write to and read from it
//    let file = "/Users/Shared/macLA/mlaConfig.txt"
    let file = "/Library/Security/SecurityAgentPlugins/LoginUIAuthPlugin.bundle/Contents/Resources/mlaConfig.txt"
//    let text = "some text1" //just a text
    let fileURL = URL(fileURLWithPath:file)
    globalLogger("readConfigFile: fileURL= \(fileURL)")
 /* commented this out since we cant write to a file within bundle
     //writing
    do {
        globalLogger("readConfigFile: writing")
        try text.write(to: fileURL, atomically: false, encoding: .utf8)
    }
    catch {
        /* error handling here */
        globalLogger("readConfigFile: error writing")
        return false
    }
 */
    //reading
    do {
        let text2 = try String(contentsOf: fileURL, encoding: .utf8)
        globalLogger("file content = \(text2)")
    }
    catch {
        /* error handling here */
        globalLogger("readConfigFile: error reading")
        return false
    }
    globalLogger("readConfigFile: End1")
    return true
}

我将制作另一个基于macOS GUI的普通应用程序，让用户在登录mac后配置一切

那么，除了在捆绑包中添加文件之外，还有其他选择吗？这是配置设置的最佳方法吗