System.IO.IsolatedStorage.Helper.CreateDirectory C# (CSharp) Méthode

        internal static void CreateDirectory(string path, IsolatedStorageScope scope)
        {
            if (Directory.Exists(path))
                return;

            DirectoryInfo info = Directory.CreateDirectory(path);

            if (IsMachine(scope) && RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                // Need to emulate COMIsolatedStorage::CreateDirectoryWithDacl(), which gives the following rights:
                //
                //  World / Everyone (S-1-1-0 / SECURITY_WORLD_RID) -> (FILE_GENERIC_WRITE | FILE_GENERIC_READ) & (~WRITE_DAC)
                //  Creator Owner (S-1-3-0 / SECURITY_CREATOR_OWNER_RID) -> FILE_ALL_ACCESS
                //  Local Admins (S-1-5-32 / SECURITY_BUILTIN_DOMAIN_RID & DOMAIN_ALIAS_RID_ADMINS) -> FILE_ALL_ACCESS
                // 
                // When looking at rights through the GUI it looks like this:
                //
                //  "Everyone" -> Read, Write
                //  "Administrators" -> Full control
                //  "CREATOR OWNER" -> Full control
                //
                // With rights applying to "This folder, subfolders, and files". No inheritance from the parent folder.
                //
                // Note that trying to reset the rules for CREATOR OWNER leaves the current directory with the actual creator's SID.
                // (But applies CREATOR OWNER as expected for items and subdirectories.) Setting up front when creating the directory
                // doesn't exhibit this behavior, but as we can't currently do that we'll take the rough equivalent for now.

                DirectorySecurity security = new DirectorySecurity();

                // Don't inherit the existing rules
                security.SetAccessRuleProtection(isProtected: true, preserveInheritance: false);
                security.AddAccessRule(new FileSystemAccessRule(
                    identity: new SecurityIdentifier(WellKnownSidType.WorldSid, null),
                    fileSystemRights: FileSystemRights.Read | FileSystemRights.Write,
                    inheritanceFlags: InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
                    propagationFlags: PropagationFlags.None,
                    type: AccessControlType.Allow));

                security.AddAccessRule(new FileSystemAccessRule(
                    identity: new SecurityIdentifier(WellKnownSidType.BuiltinAdministratorsSid, null),
                    fileSystemRights: FileSystemRights.FullControl,
                    inheritanceFlags: InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
                    propagationFlags: PropagationFlags.None,
                    type: AccessControlType.Allow));

                security.AddAccessRule(new FileSystemAccessRule(
                    identity: new SecurityIdentifier(WellKnownSidType.CreatorOwnerSid, null),
                    fileSystemRights: FileSystemRights.FullControl,
                    inheritanceFlags: InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
                    propagationFlags: PropagationFlags.None,
                    type: AccessControlType.Allow));

                info.SetAccessControl(security);
            }
        }

        // Data file notes
        // ===============

        // "identity.dat" is the serialized identity object, such as StrongName or Url. It is used to
        // enumerate stores, which we currently do not support.
        //
        // private const string IDFile = "identity.dat";

        // "info.dat" is used to track disk space usage (against quota). The accounting file for Silverlight
        // stores is "appInfo.dat". .NET Core is always in full trust so we can safely ignore these.
        //
        // private const string InfoFile = "info.dat";
        // private const string AppInfoFile = "appInfo.dat";

        internal IsolatedStorageFile(IsolatedStorageScope scope)
        {
            // Evidence isn't currently available: https://github.com/dotnet/runtime/issues/18208
            // public static IsolatedStorageFile GetStore(IsolatedStorageScope scope, Evidence domainEvidence, Type domainEvidenceType, Evidence assemblyEvidence, Type assemblyEvidenceType) { return default(IsolatedStorageFile); }

            // InitStore will set up the IdentityHash
            InitStore(scope, null, null);

            StringBuilder sb = new StringBuilder(Helper.GetRootDirectory(scope));

            sb.Append(SeparatorExternal);
            sb.Append(IdentityHash);
            sb.Append(SeparatorExternal);

            if (Helper.IsApplication(scope))
            {
                sb.Append(s_appFiles);
            }
            else if (Helper.IsDomain(scope))
            {
                sb.Append(s_files);
            }
            else
            {
                sb.Append(s_assemFiles);
            }
            sb.Append(SeparatorExternal);

            _rootDirectory = sb.ToString();
            Helper.CreateDirectory(_rootDirectory, scope);
        }