取得文件夹是否有用户
/// <summary> /// 取得文件夹是否有用户 /// </summary> /// <param name="filePath"></param> /// <param name="userName"></param> /// <returns></returns> internal static bool HasOperationPermission(string filePath, string userName = "") { if(string.IsNullOrWhiteSpace(userName)) { userName = Environment.UserName; } bool accessRule = false; var sysAccessRule = GetFileSysAccessRule(filePath); var groupMem = GetWindowUserGroup(); var groupList = new List<string>(); foreach (var item in groupMem.ToList()) { if (item.Value.Contains(userName)) { //var groupName = Path.Combine(Environment.MachineName, item.Key); groupList.Add(item.Key); } } var userAccessRules = sysAccessRule.Where(t => groupList.Contains(t.IdentityReference.Value.Split(@"\").LastOrDefault()) || t.IdentityReference.Value.Split(@"\").LastOrDefault() == userName); var rezDeny = userAccessRules.Any(i => i.AccessControlType == AccessControlType.Deny); if (rezDeny) { accessRule = false; } var accessCount = userAccessRules.Count(i => (i.FileSystemRights & FileSystemRights.Modify) == FileSystemRights.Modify || i.FileSystemRights == FileSystemRights.FullControl); if (accessCount > 0) { accessRule = true; } return accessRule; }
static List<FileSystemAccessRule> GetFileSysAccessRule(string filePath) { DirectoryInfo dInfo = new DirectoryInfo(filePath); // Get a DirectorySecurity object that represents the // current security settings. DirectorySecurity fileAcl = dInfo.GetAccessControl(); List<FileSystemAccessRule> userAccessRules = fileAcl.GetAccessRules(true, true, typeof(NTAccount)) .OfType<FileSystemAccessRule>().ToList(); return userAccessRules; // return userAccessRules.Any(i => i.AccessControlType == AccessControlType.Deny); }
static Dictionary<string, List<string>> GetWindowUserGroup() { int LOCALGROUP_MEMBERS_INFO_1_SIZE; int LOCALGROUP_INFO_1_SIZE; LOCALGROUP_INFO_1_SIZE = Marshal.SizeOf(new Win32API.LOCALGROUP_INFO_1()); LOCALGROUP_MEMBERS_INFO_1_SIZE = Marshal.SizeOf(new Win32API.LOCALGROUP_MEMBERS_INFO_1()); Dictionary<string, List<string>> GroupMem = new Dictionary<string, List<string>>(); //defining values for getting group names uint level = 1, prefmaxlen = 0xFFFFFFFF, entriesread = 0, totalentries = 0; //Values that will receive information. IntPtr GroupInfoPtr, UserInfoPtr; GroupInfoPtr = IntPtr.Zero; UserInfoPtr = IntPtr.Zero; Win32API.NetLocalGroupEnum( IntPtr.Zero, //Server name.it must be null level,//level can be 0 or 1 for groups.For more information see LOCALGROUP_INFO_0 and LOCALGROUP_INFO_1 ref GroupInfoPtr,//Value that will be receive information prefmaxlen,//maximum length ref entriesread,//value that receives the count of elements actually enumerated. ref totalentries,//value that receives the approximate total number of entries that could have been enumerated from the current resume position. IntPtr.Zero); //this string array will hold comments of each group var commentArray = new string[totalentries]; //int LOCALGROUP_INFO_1_SIZE = Marshal.SizeOf(new Win32API.LOCALGROUP_INFO_1()); // int LOCALGROUP_MEMBERS_INFO_1_SIZE = Marshal.SizeOf(new Win32API.LOCALGROUP_MEMBERS_INFO_1()); //getting group names and add them to tree view for (int i = 0; i < totalentries; i++) { var userList = new List<string>(); //converting unmanaged code to managed codes with using Marshal class var groupPtr = GroupInfoPtr.ToInt64(); long newOffset = groupPtr + LOCALGROUP_INFO_1_SIZE * i; // int newOffset = GroupInfoPtr.ToInt32() + LOCALGROUP_INFO_1_SIZE * i; Win32API.LOCALGROUP_INFO_1 groupInfo = (Win32API.LOCALGROUP_INFO_1)Marshal.PtrToStructure(new IntPtr(newOffset), typeof(Win32API.LOCALGROUP_INFO_1)); string currentGroupName = Marshal.PtrToStringAuto(groupInfo.lpszGroupName); //storing group comment in an string array to show it in a label later commentArray[i] = Marshal.PtrToStringAuto(groupInfo.lpszComment); //defining value for getting name of members in each group uint prefmaxlen1 = 0xFFFFFFFF, entriesread1 = 0, totalentries1 = 0; //paramaeters for NetLocalGroupGetMembers is like NetLocalGroupEnum. Win32API.NetLocalGroupGetMembers(IntPtr.Zero, groupInfo.lpszGroupName, 1, ref UserInfoPtr, prefmaxlen1, ref entriesread1, ref totalentries1, IntPtr.Zero); //getting members name for (int j = 0; j < totalentries1; j++) { //converting unmanaged code to managed codes with using Marshal class long newOffset1 = UserInfoPtr.ToInt64() + LOCALGROUP_MEMBERS_INFO_1_SIZE * j; Win32API.LOCALGROUP_MEMBERS_INFO_1 memberInfo = (Win32API.LOCALGROUP_MEMBERS_INFO_1)Marshal.PtrToStructure(new IntPtr(newOffset1), typeof(Win32API.LOCALGROUP_MEMBERS_INFO_1)); string currentUserName = Marshal.PtrToStringAuto(memberInfo.lgrmi1_name); //adding member name to tree view userList.Add(currentUserName); } //free memory Win32API.NetApiBufferFree(UserInfoPtr); GroupMem.Add(currentGroupName, userList); } //free memory Win32API.NetApiBufferFree(GroupInfoPtr); return GroupMem; }
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