1
我正在开发一个更新文件/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist
的应用程序。该文件由root拥有。我目前正在使用/usr/libexec/authopen
工具更新它,运行工具NSTask
和NSPipe
。这里是代码:从沙盒应用程序更新系统文件
func saveAs(fname:String) {
// Create a dictory to write back out, and replace the knownNetworks and the preferredOrder
let d = NSMutableDictionary(dictionary:airport_preferences)
d[KnownNetworks] = networks
d[PreferredOrder] = preferred_order
let tempFileName = NSTemporaryDirectory() + "/preferences.new"
d.writeToFile(tempFileName,atomically:true)
let data = NSData(contentsOfFile: tempFileName)
let task = NSTask()
task.launchPath = "/usr/libexec/authopen"
task.arguments = ["-c","-w",fname]
let pipe = NSPipe()
task.standardInput = pipe
task.launch()
let old_signal = signal(SIGPIPE,SIG_IGN)
pipe.fileHandleForWriting.writeData(data!)
pipe.fileHandleForWriting.closeFile()
task.waitUntilExit()
signal(SIGPIPE,old_signal)
do {
try NSFileManager.defaultManager().removeItemAtPath(tempFileName)
} catch let error as NSError {
print(error.description)
}
}
要移动到应用程序沙箱,我可以通过让用户在浏览器中选择它来打开该文件。这并不难,因为我可以预先定位NSOpenPanel
。 Mac App Sandboxing- Updating files outside the sandbox描述了如何更新沙盒外的文件,但不是由root拥有的文件。
当我跑我的下沙盒代码,我得到这个错误:(该代码仍然有我的调试打印语句),则它
tempfile: /Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist length: 339710
arguments: Optional(["-c", "-w", "/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist"])
2015-09-26 11:46:07.699 WiFi Editor[94175:2887221] An uncaught exception was raised
2015-09-26 11:46:07.700 WiFi Editor[94175:2887221] Couldn't posix_spawn: error 1
2015-09-26 11:46:07.703 WiFi Editor[94175:2887221] (
那么,如何一个更新的系统文件,从沙箱?
添加此为答案,我会接受它。我的计划是显示一个窗口,其中需要将文本粘贴到终端窗口中。这是允许的吗? – vy32