Smb write, delete, fixes, error handling

src/ConsoleApp/FileTime.ConsoleUI.App/Application.CommandHandlers.cs

@@ -169,8 +169,16 @@ namespace FileTime.ConsoleUI.App
         {
             IList<AbsolutePath>? itemsToDelete = null;
 
-            var currentSelectedItems = (await _tabStates[_selectedTab!].GetCurrentMarkedItems()).Select(p => p.ResolveAsync()).ToList();
+            var currentSelectedItems = new List<IItem>();
-            var currentSelectedItem = await _selectedTab?.GetCurrentSelectedItem();
+            foreach (var item in await _tabStates[_selectedTab!].GetCurrentMarkedItems())
+            {
+                var resolvedItem = await item.ResolveAsync();
+                if (resolvedItem != null) currentSelectedItems.Add(resolvedItem);
+            }
+
+            IItem? currentSelectedItem = null;
+            if (_selectedTab != null) currentSelectedItem = await _selectedTab.GetCurrentSelectedItem();
+
             if (currentSelectedItems.Count > 0)
             {
                 var delete = true;

src/Core/FileTime.Core/Command/CopyCommand.cs

@@ -60,9 +60,9 @@ namespace FileTime.Core.Command
 
             var newDiffs = new List<Difference>();
 
-            _copyOperation = (_, to, _, _) =>
+            _copyOperation = async (_, to, _, _) =>
             {
-                var target = to.GetParent().ResolveAsync();
+                var target = await to.GetParent().ResolveAsync();
                 newDiffs.Add(new Difference(
                     target is IElement
                         ? DifferenceItemType.Element
@@ -70,8 +70,6 @@ namespace FileTime.Core.Command
                     DifferenceActionType.Create,
                     to
                 ));
-
-                return Task.CompletedTask;
             };
 
             _createContainer = async (IContainer target, string name) =>
@@ -188,6 +186,7 @@ namespace FileTime.Core.Command
                         for (var i = 0; targetNameExists; i++)
                         {
                             targetName = element.Name + (i == 0 ? "_" : $"_{i}");
+                            targetNameExists = await target.IsExistsAsync(targetName);
                         }
                     }
                     else if (transportMode == Command.TransportMode.Skip && targetNameExists)

src/Core/FileTime.Core/Command/CreateElementCommand.cs

@@ -43,7 +43,7 @@ namespace FileTime.Core.Command
 
         public async Task<CanCommandRun> CanRun(PointInTime startPoint)
         {
-            var resolvedContainer = Container.ResolveAsync();
+            var resolvedContainer = await Container.ResolveAsync();
             if (resolvedContainer == null) return CanCommandRun.Forceable;
 
             if (resolvedContainer is not IContainer container

src/Core/FileTime.Core/Command/RenameCommand.cs

@@ -48,9 +48,9 @@ namespace FileTime.Core.Command
             return startPoint.WithDifferences(newDifferences);
         }
 
-        public Task<CanCommandRun> CanRun(PointInTime startPoint)
+        public async Task<CanCommandRun> CanRun(PointInTime startPoint)
         {
-            return Task.FromResult(Source.ResolveAsync() != null ? CanCommandRun.True : CanCommandRun.False);
+            return await Source.ResolveAsync() != null ? CanCommandRun.True : CanCommandRun.False;
         }
     }
 }

src/Core/FileTime.Core/CommandHandlers/StreamCopyCommandHandler.cs

@@ -41,11 +41,14 @@ namespace FileTime.Core.CommandHandlers
             do
             {
                 dataRead = await reader.ReadBytesAsync(writer.PreferredBufferSize);
+                if (dataRead.Length > 0)
+                {
                     await writer.WriteBytesAsync(dataRead);
                     await writer.FlushAsync();
                     if (operationProgress != null) operationProgress.Progress += dataRead.LongLength;
                     await copyCommandContext.UpdateProgress();
                 }
+            }
             while (dataRead.Length > 0);
         }
     }

src/Core/FileTime.Core/Components/Tab.cs

@@ -45,7 +45,8 @@ namespace FileTime.Core.Components
                 _currentLocation = value;
                 await CurrentLocationChanged.InvokeAsync(this, AsyncEventArgs.Empty);
 
-                var currentLocationItems = (await (await GetCurrentLocation()).GetItems())!;
+                var currentLocationItems = await (await GetCurrentLocation()).GetItems();
+                if (currentLocationItems == null) throw new Exception("Could not get current location items.");
                 await SetCurrentSelectedItem(await GetItemByLastPath() ?? (currentLocationItems.Count > 0 ? currentLocationItems[0] : null));
                 _currentLocation.Refreshed.Add(HandleCurrentLocationRefresh);
             }
@@ -155,11 +156,11 @@ namespace FileTime.Core.Components
             var currentLocationItems = (await (await GetCurrentLocation(token)).GetItems(token))!;
             if (currentSelectedName != null)
             {
-                await SetCurrentSelectedItem(currentLocationItems.FirstOrDefault(i => i.FullName == currentSelectedName) ?? currentLocationItems[0]);
+                await SetCurrentSelectedItem(currentLocationItems.FirstOrDefault(i => i.FullName == currentSelectedName) ?? (currentLocationItems.Count > 0 ? currentLocationItems[0] : null), token: token);
             }
             else if (currentLocationItems.Count > 0)
             {
-                await SetCurrentSelectedItem(currentLocationItems[0]);
+                await SetCurrentSelectedItem(currentLocationItems[0], token: token);
             }
         }
 

src/Core/FileTime.Core/Models/IContainer.cs

@@ -23,7 +23,12 @@ namespace FileTime.Core.Models
 
             if (item is IContainer container)
             {
-                var result = await container.GetByPath(string.Join(Constants.SeparatorChar, paths.Skip(1)), acceptDeepestMatch);
+                IItem? result = null;
+                try
+                {
+                    result = await container.GetByPath(string.Join(Constants.SeparatorChar, paths.Skip(1)), acceptDeepestMatch);
+                }
+                catch { }
                 return result == null && acceptDeepestMatch ? this : result;
             }
 

src/Core/FileTime.Core/Timeline/TimeRunner.cs

@@ -139,9 +139,14 @@ namespace FileTime.Core.Timeline
                     _commandExecutor.ExecuteCommandAsync(commandToRun.Command, this).Wait();
                 }
             }
-            catch(Exception e)
+            catch (Exception e)
             {
-                _logger.LogError(e, "Error while running command: {CommandType} ({Command}).", commandToRun?.Command.GetType().Name, commandToRun?.Command.DisplayLabel);
+                _logger.LogError(
+                    e,
+                    "Error while running command: {CommandType} ({Command}) {Error}.",
+                    commandToRun?.Command.GetType().Name,
+                    commandToRun?.Command.DisplayLabel,
+                    e.Message);
             }
             finally
             {

src/GuiApp/FileTime.Avalonia/Converters/ExceptionToStringConverter.cs

@@ -11,7 +11,27 @@ namespace FileTime.Avalonia.Converters
             if (value is not Exception e) return value;
 
             if (e is UnauthorizedAccessException) return e.Message;
+            else if (e.InnerException != null)
+            {
+                return TraverseInnerException(e);
+            }
 
+            return FormatException(e);
+        }
+
+        private static string TraverseInnerException(Exception e)
+        {
+            string s = "";
+            if (e.InnerException != null) s += TraverseInnerException(e.InnerException) + Environment.NewLine;
+            else return FormatException(e);
+
+            s += "In: " + FormatException(e);
+
+            return s;
+        }
+
+        private static string FormatException(Exception e)
+        {
             return $"{e.Message} ({e.GetType().FullName})";
         }
 

src/GuiApp/FileTime.Avalonia/Services/CommandHandlerService.cs

@@ -268,9 +268,18 @@ namespace FileTime.Avalonia.Services
         {
             var handler = async (List<InputElementWrapper> inputs) =>
             {
+                string? containerName = null;
+                try
+                {
+                    containerName = inputs[0].Value;
                     var container = _appState.SelectedTab.CurrentLocation.Container;
-                var createContainerCommand = new CreateContainerCommand(new AbsolutePath(container), inputs[0].Value);
+                    var createContainerCommand = new CreateContainerCommand(new AbsolutePath(container), containerName);
                     await AddCommand(createContainerCommand);
+                }
+                catch(Exception e)
+                {
+                    _logger.LogError(e, "Error while creating container {Container}", containerName);
+                }
             };
 
             _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Container name", InputType.Text) }, handler);
@@ -282,9 +291,18 @@ namespace FileTime.Avalonia.Services
         {
             var handler = async (List<InputElementWrapper> inputs) =>
             {
+                string? elementName = null;
+                try
+                {
+                    elementName = inputs[0].Value;
                     var container = _appState.SelectedTab.CurrentLocation.Container;
-                var createElementCommand = new CreateElementCommand(new AbsolutePath(container), inputs[0].Value);
+                    var createElementCommand = new CreateElementCommand(new AbsolutePath(container), elementName);
                     await AddCommand(createElementCommand);
+                }
+                catch(Exception e)
+                {
+                    _logger.LogError(e, "Error while creating element {Element}", elementName);
+                }
             };
 
             _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Element name", InputType.Text) }, handler);

src/GuiApp/FileTime.Avalonia/Services/KeyInputHandlerService.cs

@@ -207,7 +207,7 @@ namespace FileTime.Avalonia.Services
             }
             catch (Exception e)
             {
-                _logger.LogError(e, "Unknown error while running commnad. {Command}", command);
+                _logger.LogError(e, "Unknown error while running command. {Command} {Error}", command, e);
             }
         }
 

src/GuiApp/FileTime.Avalonia/Services/StatePersistenceService.cs

@@ -137,7 +137,19 @@ namespace FileTime.Avalonia.Services
                         if (container == null) continue;
 
                         var newTab = new Tab();
+                        while (true)
+                        {
+                            try
+                            {
+                                if (container == null) throw new Exception($"Could not find an initializable path along {tab.Path}");
                                 await newTab.Init(container);
+                                break;
+                            }
+                            catch
+                            {
+                                container = container!.GetParent();
+                            }
+                        }
 
                         var newTabContainer = new TabContainer(newTab, _localContentProvider, _itemNameConverterService);
                         await newTabContainer.Init(tab.Number);

src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml

@@ -323,7 +323,7 @@
 											<ItemsRepeater Grid.Row="1" Items="{Binding AppState.SelectedTab.ChildContainer.Exceptions}">
 												<ItemsRepeater.ItemTemplate>
 													<DataTemplate>
-														<TextBlock Text="{Binding, Converter={StaticResource ExceptionToStringConverter}}"/>
+														<TextBlock Margin="5,0,5,10" Text="{Binding, Converter={StaticResource ExceptionToStringConverter}}"/>
 													</DataTemplate>
 												</ItemsRepeater.ItemTemplate>
 											</ItemsRepeater>

src/Providers/FileTime.Providers.Smb/SmbClientContext.cs

@@ -4,24 +4,29 @@ namespace FileTime.Providers.Smb
 {
     public class SmbClientContext
     {
-        private readonly Func<Task<ISMBClient>> _getSmbClient;
+        private readonly Func<int, Task<ISMBClient>> _getSmbClient;
         private readonly Action _disposeClient;
         private bool _isRunning;
         private readonly object _lock = new();
 
-        public SmbClientContext(Func<Task<ISMBClient>> getSmbClient, Action disposeClient)
+        public SmbClientContext(Func<int, Task<ISMBClient>> getSmbClient, Action disposeClient)
         {
             _getSmbClient = getSmbClient;
             _disposeClient = disposeClient;
         }
 
-        public async Task<T> RunWithSmbClientAsync<T>(Func<ISMBClient, T> func)
+        public async Task RunWithSmbClientAsync(Action<ISMBClient> action, int maxRetries = SmbServer.MAXRETRIES)
+        {
+            await RunWithSmbClientAsync<object?>((client) => { action(client); return null; }, maxRetries);
+        }
+
+        public async Task<T> RunWithSmbClientAsync<T>(Func<ISMBClient, T> func, int maxRetries = SmbServer.MAXRETRIES)
         {
             while (true)
             {
                 lock (_lock)
                 {
-                    if(!_isRunning)
+                    if (!_isRunning)
                     {
                         _isRunning = true;
                         break;
@@ -37,7 +42,7 @@ namespace FileTime.Providers.Smb
                 {
                     try
                     {
-                        client = await _getSmbClient();
+                        client = await _getSmbClient(maxRetries);
                         return func(client);
                     }
                     catch (Exception e) when (e.Source == "SMBLibrary")

src/Providers/FileTime.Providers.Smb/SmbContentProvider.cs

@@ -94,8 +94,23 @@ namespace FileTime.Providers.Smb
             }
 
             var remainingPath = string.Join(Constants.SeparatorChar, pathParts.Skip(1));
+            try
+            {
                 return remainingPath.Length == 0 ? rootContainer : await rootContainer.GetByPath(remainingPath, acceptDeepestMatch);
             }
+            catch (Exception e)
+            {
+                _logger.LogError(e, "Error while getting path {Path}", path);
+                if (acceptDeepestMatch)
+                {
+                    return rootContainer ?? this;
+                }
+                else
+                {
+                    throw;
+                }
+            }
+        }
 
         public IContainer? GetParent() => _parent;
 

src/Providers/FileTime.Providers.Smb/SmbContentReader.cs

@@ -9,7 +9,7 @@ namespace FileTime.Providers.Smb
         private readonly ISMBFileStore _smbFileStore;
         private readonly object _fileHandle;
         private readonly ISMBClient _client;
-        private bool disposed;
+        private bool _disposed;
         private long _bytesRead;
 
         public int PreferredBufferSize => (int)_client.MaxReadSize;
@@ -53,7 +53,7 @@ namespace FileTime.Providers.Smb
 
         private void Dispose(bool disposing)
         {
-            if (!disposed)
+            if (!_disposed)
             {
                 if (disposing)
                 {
@@ -61,7 +61,7 @@ namespace FileTime.Providers.Smb
                     _smbFileStore.Disconnect();
                 }
             }
-            disposed = true;
+            _disposed = true;
         }
     }
 }

src/Providers/FileTime.Providers.Smb/SmbContentWriter.cs

@@ -1,24 +1,65 @@
 using FileTime.Core.Providers;
+using SMBLibrary;
+using SMBLibrary.Client;
 
 namespace FileTime.Providers.Smb
 {
     public class SmbContentWriter : IContentWriter
     {
-        public int PreferredBufferSize => throw new NotImplementedException();
+        private readonly ISMBFileStore _smbFileStore;
+        private readonly object _fileHandle;
+        private readonly ISMBClient _client;
+        private bool _disposed;
+        private int _writeOffset;
 
-        public void Dispose()
+        public int PreferredBufferSize => (int)_client.MaxWriteSize;
+
+        public SmbContentWriter(ISMBFileStore smbFileStore, object fileHandle, ISMBClient client)
         {
-            throw new NotImplementedException();
+            _smbFileStore = smbFileStore;
+            _fileHandle = fileHandle;
+            _client = client;
         }
 
         public Task FlushAsync()
         {
-            throw new NotImplementedException();
+            return Task.CompletedTask;
         }
 
         public Task WriteBytesAsync(byte[] data)
         {
-            throw new NotImplementedException();
+            var status = _smbFileStore.WriteFile(out int numberOfBytesWritten, _fileHandle, _writeOffset, data);
+            if (status != NTStatus.STATUS_SUCCESS)
+            {
+                throw new Exception("Failed to write to file");
+            }
+            _writeOffset += numberOfBytesWritten;
+
+            return Task.CompletedTask;
+        }
+
+        ~SmbContentWriter()
+        {
+            Dispose(false);
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        private void Dispose(bool disposing)
+        {
+            if (!_disposed)
+            {
+                if (disposing)
+                {
+                    _smbFileStore.CloseFile(_fileHandle);
+                    _smbFileStore.Disconnect();
+                }
+            }
+            _disposed = true;
         }
     }
 }

src/Providers/FileTime.Providers.Smb/SmbFile.cs

@@ -37,9 +37,34 @@ namespace FileTime.Providers.Smb
             _smbShare = smbShare;
         }
 
-        public Task Delete(bool hardDelete = false)
+        public async Task Delete(bool hardDelete = false)
         {
-            throw new NotImplementedException();
+            await _smbClientContext.RunWithSmbClientAsync(client =>
+            {
+                var fileStore = _smbShare.TreeConnect(client, out var status);
+                status = fileStore.CreateFile(
+                    out object fileHandle,
+                    out FileStatus fileStatus,
+                    GetPathFromShare(),
+                    AccessMask.GENERIC_WRITE | AccessMask.DELETE | AccessMask.SYNCHRONIZE,
+                    SMBLibrary.FileAttributes.Normal,
+                    ShareAccess.None,
+                    CreateDisposition.FILE_OPEN,
+                    CreateOptions.FILE_NON_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT,
+                    null);
+
+                if (status == NTStatus.STATUS_SUCCESS)
+                {
+                    var fileDispositionInformation = new FileDispositionInformation
+                    {
+                        DeletePending = true
+                    };
+                    status = fileStore.SetFileInformation(fileHandle, fileDispositionInformation);
+                    bool deleteSucceeded = status == NTStatus.STATUS_SUCCESS;
+                    status = fileStore.CloseFile(fileHandle);
+                }
+                status = fileStore.Disconnect();
+            });
         }
         public Task Rename(string newName)
         {
@@ -69,9 +94,16 @@ namespace FileTime.Providers.Smb
                     throw new Exception($"Could not open file {NativePath} for read.");
                 }
 
-                var path = NativePath!;
+                status = fileStore.CreateFile(
-                path = path[(_parent.NativePath!.Length + 1)..];
+                    out object fileHandle,
-                status = fileStore.CreateFile(out object fileHandle, out FileStatus fileStatus, path, AccessMask.GENERIC_READ | AccessMask.SYNCHRONIZE, SMBLibrary.FileAttributes.Normal, ShareAccess.Read, CreateDisposition.FILE_OPEN, CreateOptions.FILE_NON_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT, null);
+                    out FileStatus fileStatus,
+                    GetPathFromShare(),
+                    AccessMask.GENERIC_READ | AccessMask.SYNCHRONIZE,
+                    SMBLibrary.FileAttributes.Normal,
+                    ShareAccess.Read,
+                    CreateDisposition.FILE_OPEN,
+                    CreateOptions.FILE_NON_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT,
+                    null);
 
                 if (status != NTStatus.STATUS_SUCCESS)
                 {
@@ -82,9 +114,38 @@ namespace FileTime.Providers.Smb
             });
         }
 
-        public Task<IContentWriter> GetContentWriterAsync()
+        public async Task<IContentWriter> GetContentWriterAsync()
         {
-            throw new NotImplementedException();
+            return await _smbClientContext.RunWithSmbClientAsync(client =>
+            {
+                NTStatus status = NTStatus.STATUS_DATA_ERROR;
+                var fileStore = _smbShare.TreeConnect(client, out status);
+
+                if (status != NTStatus.STATUS_SUCCESS)
+                {
+                    throw new Exception($"Could not open file {NativePath} for write.");
                 }
+
+                status = fileStore.CreateFile(
+                    out object fileHandle,
+                    out FileStatus fileStatus,
+                    GetPathFromShare(),
+                    AccessMask.GENERIC_WRITE | AccessMask.SYNCHRONIZE,
+                    SMBLibrary.FileAttributes.Normal,
+                    ShareAccess.None,
+                    CreateDisposition.FILE_OPEN_IF,
+                    CreateOptions.FILE_NON_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT,
+                    null);
+
+                if (status != NTStatus.STATUS_SUCCESS)
+                {
+                    throw new Exception($"Could not open file {NativePath} for write.");
+                }
+
+                return new SmbContentWriter(fileStore, fileHandle, client);
+            });
+        }
+
+        private string GetPathFromShare() => SmbContentProvider.GetNativePath(FullName![(_smbShare.FullName!.Length + 1)..]);
     }
 }

src/Providers/FileTime.Providers.Smb/SmbFolder.cs

@@ -1,6 +1,7 @@
 using AsyncEvent;
 using FileTime.Core.Models;
 using FileTime.Core.Providers;
+using SMBLibrary;
 
 namespace FileTime.Providers.Smb
 {
@@ -10,6 +11,7 @@ namespace FileTime.Providers.Smb
         private IReadOnlyList<IContainer>? _containers;
         private IReadOnlyList<IElement>? _elements;
         private readonly IContainer? _parent;
+        private readonly SmbClientContext _smbClientContext;
 
         public string Name { get; }
 
@@ -32,7 +34,7 @@ namespace FileTime.Providers.Smb
 
         public bool SupportsDirectoryLevelSoftDelete => false;
 
-        public SmbFolder(string name, SmbContentProvider contentProvider, SmbShare smbShare, IContainer parent)
+        public SmbFolder(string name, SmbContentProvider contentProvider, SmbShare smbShare, IContainer parent, SmbClientContext smbClientContext)
         {
             _parent = parent;
             SmbShare = smbShare;
@@ -41,30 +43,65 @@ namespace FileTime.Providers.Smb
             FullName = parent?.FullName == null ? Name : parent.FullName + Constants.SeparatorChar + Name;
             NativePath = SmbContentProvider.GetNativePath(FullName);
             Provider = contentProvider;
+            _smbClientContext = smbClientContext;
         }
 
-        public Task<IContainer> CreateContainerAsync(string name)
+        public async Task<IContainer> CreateContainerAsync(string name)
         {
-            throw new NotImplementedException();
+            var path = FullName![(SmbShare.FullName!.Length + 1)..] + Constants.SeparatorChar + name;
+            await SmbShare.CreateContainerWithPathAsync(SmbContentProvider.GetNativePath(path));
+            await RefreshAsync();
+
+            return _containers!.FirstOrDefault(e => e.Name == name)!;
         }
 
-        public Task<IElement> CreateElementAsync(string name)
+        public async Task<IElement> CreateElementAsync(string name)
         {
-            throw new NotImplementedException();
+            var path = FullName![(SmbShare.FullName!.Length + 1)..] + Constants.SeparatorChar + name;
+            await SmbShare.CreateElementWithPathAsync(SmbContentProvider.GetNativePath(path));
+            await RefreshAsync();
+
+            return _elements!.FirstOrDefault(e => e.Name == name)!;
         }
 
         public Task<IContainer> CloneAsync() => Task.FromResult((IContainer)this);
 
         public IContainer? GetParent() => _parent;
 
-        public Task<bool> IsExistsAsync(string name)
+        public async Task<bool> IsExistsAsync(string name)
         {
-            throw new NotImplementedException();
+            var items = await GetItems();
+            return items?.Any(i => i.Name == name) ?? false;
         }
 
-        public Task Delete(bool hardDelete = false)
+        public async Task Delete(bool hardDelete = false)
         {
-            throw new NotImplementedException();
+            await _smbClientContext.RunWithSmbClientAsync(client =>
+            {
+                var fileStore = SmbShare.TreeConnect(client, out var status);
+                status = fileStore.CreateFile(
+                    out object fileHandle,
+                    out FileStatus fileStatus,
+                    GetPathFromShare(),
+                    AccessMask.GENERIC_WRITE | AccessMask.DELETE | AccessMask.SYNCHRONIZE,
+                    SMBLibrary.FileAttributes.Normal,
+                    ShareAccess.None,
+                    CreateDisposition.FILE_OPEN,
+                    CreateOptions.FILE_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT,
+                    null);
+
+                if (status == NTStatus.STATUS_SUCCESS)
+                {
+                    var fileDispositionInformation = new FileDispositionInformation
+                    {
+                        DeletePending = true
+                    };
+                    status = fileStore.SetFileInformation(fileHandle, fileDispositionInformation);
+                    bool deleteSucceeded = status == NTStatus.STATUS_SUCCESS;
+                    status = fileStore.CloseFile(fileHandle);
+                }
+                status = fileStore.Disconnect();
+            });
         }
         public Task Rename(string newName)
         {
@@ -123,5 +160,7 @@ namespace FileTime.Providers.Smb
             _containers = null;
             _elements = null;
         }
+
+        private string GetPathFromShare() => SmbContentProvider.GetNativePath(FullName![(SmbShare.FullName!.Length + 1)..]);
     }
 }

src/Providers/FileTime.Providers.Smb/SmbServer.cs

@@ -10,6 +10,8 @@ namespace FileTime.Providers.Smb
 {
     public class SmbServer : IContainer
     {
+        internal const int MAXRETRIES = 5;
+
         private bool _reenterCredentials;
 
         private IReadOnlyList<IContainer>? _shares;
@@ -20,6 +22,8 @@ namespace FileTime.Providers.Smb
         private bool _refreshingClient;
         private readonly IInputInterface _inputInterface;
         private readonly SmbClientContext _smbClientContext;
+        private readonly List<Exception> _exceptions = new();
+
         public string? Username { get; private set; }
         public string? Password { get; private set; }
 
@@ -35,7 +39,7 @@ namespace FileTime.Providers.Smb
         IContentProvider IItem.Provider => Provider;
         public SupportsDelete CanDelete => SupportsDelete.True;
         public bool CanRename => false;
-        public IReadOnlyList<Exception> Exceptions { get; } = new List<Exception>().AsReadOnly();
+        public IReadOnlyList<Exception> Exceptions { get; }
 
         public AsyncEventHandler Refreshed { get; } = new();
 
@@ -47,6 +51,7 @@ namespace FileTime.Providers.Smb
         {
             _inputInterface = inputInterface;
             _smbClientContext = new SmbClientContext(GetSmbClient, DisposeSmbClient);
+            Exceptions = _exceptions.AsReadOnly();
             Username = username;
             Password = password;
 
@@ -113,12 +118,20 @@ namespace FileTime.Providers.Smb
 
         public async Task RefreshAsync(CancellationToken token = default)
         {
-            List<string> shares = await _smbClientContext.RunWithSmbClientAsync((client) => client.ListShares(out var status));
+            try
+            {
+                _exceptions.Clear();
+                List<string> shares = await _smbClientContext.RunWithSmbClientAsync((client) => client.ListShares(out var status), _shares == null ? 1 : MAXRETRIES);
 
                 _shares = shares.ConvertAll(s => new SmbShare(s, Provider, this, _smbClientContext)).AsReadOnly();
                 _items = _shares.Cast<IItem>().ToList().AsReadOnly();
                 await Refreshed.InvokeAsync(this, AsyncEventArgs.Empty, token);
             }
+            catch (Exception e)
+            {
+                _exceptions.Add(e);
+            }
+        }
 
         public Task<IContainer> CloneAsync() => Task.FromResult((IContainer)this);
 
@@ -130,7 +143,7 @@ namespace FileTime.Providers.Smb
             }
         }
 
-        private async Task<ISMBClient> GetSmbClient()
+        private async Task<ISMBClient> GetSmbClient(int maxRetries = MAXRETRIES)
         {
             bool isClientNull;
             lock (_clientGuard)
@@ -138,6 +151,7 @@ namespace FileTime.Providers.Smb
                 isClientNull = _client == null;
             }
 
+            int reTries = 0;
             while (isClientNull)
             {
                 if (!await RefreshSmbClient())
@@ -149,6 +163,12 @@ namespace FileTime.Providers.Smb
                 {
                     isClientNull = _client == null;
                 }
+
+                if (reTries >= maxRetries)
+                {
+                    throw new Exception($"Could not connect to server {Name} after {reTries} retry");
+                }
+                reTries++;
             }
             return _client!;
         }

src/Providers/FileTime.Providers.Smb/SmbShare.cs

@@ -61,28 +61,99 @@ namespace FileTime.Providers.Smb
             return _elements;
         }
 
-        public Task<IContainer> CreateContainerAsync(string name)
+        public async Task<IContainer> CreateContainerAsync(string name)
         {
-            throw new NotImplementedException();
+            await CreateContainerWithPathAsync(name);
+            await RefreshAsync();
+
+            return _containers!.FirstOrDefault(e => e.Name == name)!;
+        }
+        internal async Task CreateContainerWithPathAsync(string path)
+        {
+            await _smbClientContext.RunWithSmbClientAsync(client =>
+            {
+                NTStatus status = NTStatus.STATUS_DATA_ERROR;
+                var fileStore = TreeConnect(client, out status);
+
+                if (status != NTStatus.STATUS_SUCCESS)
+                {
+                    throw new Exception($"Could not create directory {path}.");
                 }
 
-        public Task<IElement> CreateElementAsync(string name)
+                status = fileStore.CreateFile(
+                    out object fileHandle,
+                    out FileStatus fileStatus,
+                    path,
+                    AccessMask.GENERIC_ALL,
+                    SMBLibrary.FileAttributes.Directory,
+                    ShareAccess.Read,
+                    CreateDisposition.FILE_OPEN_IF,
+                    CreateOptions.FILE_DIRECTORY_FILE,
+                    null);
+
+                if (status != NTStatus.STATUS_SUCCESS)
                 {
-            throw new NotImplementedException();
+                    throw new Exception($"Could not create directory {path}.");
+                }
+
+                fileStore.CloseFile(fileHandle);
+                fileStore.Disconnect();
+            });
+        }
+
+        public async Task<IElement> CreateElementAsync(string name)
+        {
+            await CreateElementWithPathAsync(name);
+            await RefreshAsync();
+
+            return _elements!.FirstOrDefault(e => e.Name == name)!;
+        }
+        internal async Task CreateElementWithPathAsync(string path)
+        {
+            await _smbClientContext.RunWithSmbClientAsync(client =>
+            {
+                NTStatus status = NTStatus.STATUS_DATA_ERROR;
+                var fileStore = TreeConnect(client, out status);
+
+                if (status != NTStatus.STATUS_SUCCESS)
+                {
+                    throw new Exception($"Could not create file {path}.");
+                }
+
+                status = fileStore.CreateFile(
+                    out object fileHandle,
+                    out FileStatus fileStatus,
+                    path,
+                    AccessMask.GENERIC_WRITE | AccessMask.SYNCHRONIZE,
+                    SMBLibrary.FileAttributes.Normal,
+                    ShareAccess.None,
+                    CreateDisposition.FILE_CREATE,
+                    CreateOptions.FILE_NON_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_ALERT,
+                    null);
+
+                if (status != NTStatus.STATUS_SUCCESS)
+                {
+                    throw new Exception($"Could not create file {path}.");
+                }
+
+                fileStore.CloseFile(fileHandle);
+                fileStore.Disconnect();
+            });
         }
 
         public Task Delete(bool hardDelete = false)
         {
-            throw new NotImplementedException();
+            throw new NotSupportedException();
         }
 
         public IContainer? GetParent() => _parent;
 
         public Task<IContainer> CloneAsync() => Task.FromResult((IContainer)this);
 
-        public Task<bool> IsExistsAsync(string name)
+        public async Task<bool> IsExistsAsync(string name)
         {
-            throw new NotImplementedException();
+            var items = await GetItems();
+            return items?.Any(i => i.Name == name) ?? false;
         }
 
         public async Task RefreshAsync(CancellationToken token = default)
@@ -134,7 +205,7 @@ namespace FileTime.Providers.Smb
                             {
                                 if ((fileDirectoryInformation.FileAttributes & SMBLibrary.FileAttributes.Directory) == SMBLibrary.FileAttributes.Directory)
                                 {
-                                    containers.Add(new SmbFolder(fileDirectoryInformation.FileName, Provider, this, parent));
+                                    containers.Add(new SmbFolder(fileDirectoryInformation.FileName, Provider, this, parent, _smbClientContext));
                                 }
                                 else
                                 {