文件权限不会继承目录权限。

Question

我有一个程序正在为用户输出创建安全目录。这个功能已经正常工作，但是我在其中创建或复制的文件最终只能由管理员访问。

 DirectoryInfo outputDirectory =
            baseOutputDirectory.CreateSubdirectory(outputDirectoryName,
            GetDirectorySecurity(searchHits.Request.UserId));

 ...

private DirectorySecurity GetDirectorySecurity(string owner)
{
    const string LOG_SOURCE = "GetDirectorySecurity";
    DirectorySecurity ds = new DirectorySecurity();

    System.Security.Principal.NTAccount ownerAccount = 
        new System.Security.Principal.NTAccount(owner);

    ds.SetOwner(ownerAccount);

    ds.AddAccessRule(
        new FileSystemAccessRule(owner, 
        FileSystemRights.FullControl,
        AccessControlType.Allow));

    //AdminUsers is a List<string> that contains a list from configuration
    //  That represents the admins who should be allowed
    foreach (string adminUser in AdminUsers)
    {
        ds.AddAccessRule(
            new FileSystemAccessRule(adminUser,
            FileSystemRights.FullControl,
            AccessControlType.Allow));
    }
    return ds;
}

/// <summary>
/// This method copies any static supporting files, such as javascripts
/// </summary>
/// <param name="outputDirectory"></param>
private void CopySupportingFiles(DirectoryInfo outputDirectory)
{
    foreach (FileInfo file in SupportingFiles)
    {
        file.CopyTo(
            Path.Combine(outputDirectory.FullName, file.Name));
    }
}

我做错了什么？为什么权限没有逐级传递？

等等，等等，等等。

- C. Ross

Answer 1

看起来在设置DirectorySecurity时，应该设置InheritanceFlags和PropagationFlags（我相信它会覆盖您手动设置的任何内容）。

private DirectorySecurity GetDirectorySecurity(string owner)
{
    const string LOG_SOURCE = "GetDirectorySecurity";
    DirectorySecurity ds = new DirectorySecurity();

    System.Security.Principal.NTAccount ownerAccount =
        new System.Security.Principal.NTAccount(owner);

    ds.SetOwner(ownerAccount);

    ds.AddAccessRule(
        new FileSystemAccessRule(owner,
        FileSystemRights.FullControl,
        InheritanceFlags.ObjectInherit, 
        PropagationFlags.InheritOnly,
        AccessControlType.Allow));

    //AdminUsers is a List<string> that contains a list from configuration
    //  That represents the admins who should be allowed
    foreach (string adminUser in AdminUsers)
    {
        ds.AddAccessRule(
            new FileSystemAccessRule(adminUser,
            FileSystemRights.FullControl,
            InheritanceFlags.ObjectInherit,
            PropagationFlags.InheritOnly,
            AccessControlType.Allow));
    }
    return ds;
}

- scottm

---

有道理，Scott。让我试试看。 - C. Ross