使用C＃檢查文件夾的訪問權限

Question

我需要檢查特定用戶（域或本地）是否在給定目錄上提到了權限（讀/寫）。

即使用戶正在從用戶組（如管理員）繼承權限，該方法也應返回true。

這個答案很好用，但僅限於當前用戶

Answer 1

嘗試以下功能

using System.IO;
using System.Security.AccessControl; 

     public static bool CheckWritePermissionOnDir(string path)
        {
            var writeAllow = false;
            var writeDeny = false;
            var accessControlList = Directory.GetAccessControl(path); Control
            if (accessControlList == null)
                return false;
            var accessRules = accessControlList.GetAccessRules(true, true, typeof(System.Security.Principal.SecurityIdentifier));
            if (accessRules == null)
                return false;

            foreach (FileSystemAccessRule rule in accessRules)
            {
                if ((FileSystemRights.Write & rule.FileSystemRights) != FileSystemRights.Write)
                    continue;

                if (rule.AccessControlType == AccessControlType.Allow)
                    writeAllow = true;
                else if (rule.AccessControlType == AccessControlType.Deny)
                    writeDeny = true;
            }

            return writeAllow && !writeDeny;
        }