如何检测我的应用程序是否是沙盒

Question

我有一个应用程序，它的目标是在沙盒和非沙盒的MacOS中运行。如果用户从MacOS10.6升级到更高版本的操作系统，我需要用户重新选择文件夹，这样我就可以用安全的书签为它们添加书签。

如何检测我的应用程序位于支持沙盒的操作系统上？

Answer 1

我所知道的唯一方法是查找APP_SANDBOX_CONTAINER_ID环境变量。当应用程序在沙盒容器中运行时，它就会出现。

NSDictionary* environ = [[NSProcessInfo processInfo] environment];
BOOL inSandbox = (nil != [environ objectForKey:@"APP_SANDBOX_CONTAINER_ID"]);

Answer 2

BOOL isSandboxed = NO;
SecStaticCodeRef staticCode = NULL;
NSURL *bundleURL = [[NSBundle mainBundle] bundleURL];
if (SecStaticCodeCreateWithPath((__bridge CFURLRef)bundleURL, kSecCSDefaultFlags, &staticCode) == errSecSuccess) {
    if (SecStaticCodeCheckValidityWithErrors(staticCode, kSecCSBasicValidateOnly, NULL, NULL) == errSecSuccess) {
        SecRequirementRef sandboxRequirement;
        if (SecRequirementCreateWithString(CFSTR("entitlement["com.apple.security.app-sandbox"] exists"), kSecCSDefaultFlags,
                                       &sandboxRequirement) == errSecSuccess)
        {
            OSStatus codeCheckResult = SecStaticCodeCheckValidityWithErrors(staticCode, kSecCSBasicValidateOnly, sandboxRequirement, NULL);
            if (codeCheckResult == errSecSuccess) {
                isSandboxed = YES;
            }
        }
    }
    CFRelease(staticCode);
}

Answer 3

Swift3 测试

func isSandboxed() -> Bool {
    let bundleURL = Bundle.main.bundleURL
    var staticCode:SecStaticCode?
    var isSandboxed:Bool = false
    let kSecCSDefaultFlags:SecCSFlags = SecCSFlags(rawValue: SecCSFlags.RawValue(0))
    if SecStaticCodeCreateWithPath(bundleURL as CFURL, kSecCSDefaultFlags, &staticCode) == errSecSuccess {
        if SecStaticCodeCheckValidityWithErrors(staticCode!, SecCSFlags(rawValue: kSecCSBasicValidateOnly), nil, nil) == errSecSuccess {
            let appSandbox = "entitlement["com.apple.security.app-sandbox"] exists"
            var sandboxRequirement:SecRequirement?
            if SecRequirementCreateWithString(appSandbox as CFString, kSecCSDefaultFlags, &sandboxRequirement) == errSecSuccess {
                let codeCheckResult:OSStatus  = SecStaticCodeCheckValidityWithErrors(staticCode!, SecCSFlags(rawValue: kSecCSBasicValidateOnly), sandboxRequirement, nil)
                if (codeCheckResult == errSecSuccess) {
                    isSandboxed = true
                }
            }
        }
    }
    return isSandboxed
}

Answer 4

这里是@hamstergene在Swift 4.2中的答案：

func isSandboxEnvironment() -> Bool {
    let environ = ProcessInfo.processInfo.environment
    return (nil != environ["APP_SANDBOX_CONTAINER_ID"])
}