Hash functions

src/AppCommon/FileTime.App.Core/Command/Commands.cs

@@ -8,12 +8,14 @@ namespace FileTime.App.Core.Command
         ChangeTimelineMode,
         CloseTab,
         Copy,
+        CopyHash,
         CopyPath,
         CreateContainer,
         CreateElement,
         Cut,
         Edit,
         EnterRapidTravel,
+        GetHash,
         GoToHome,
         GoToPath,
         GoToProvider,

src/ConsoleApp/FileTime.ConsoleUI.App/UI/ConsoleInputInterface.cs

@@ -24,7 +24,7 @@ namespace FileTime.ConsoleUI.App.UI
             foreach (var input in fields)
             {
                 _application.MoveToIOLine();
-                _coloredConsoleRenderer.Write(input.Text + ": ");
+                _coloredConsoleRenderer.Write(input.Label + ": ");
 
                 results.Add(await _consoleReader.ReadText(placeHolder: input.InputType == InputType.Password ? '*' : null));
             }

src/Core/FileTime.Core/Interactions/InputElement.cs

@@ -2,15 +2,38 @@ namespace FileTime.Core.Interactions
 {
     public class InputElement
     {
-        public string Text { get; }
+        public string Label { get; }
         public InputType InputType { get; }
         public string? DefaultValue { get; }
+        public List<object>? Options { get; }
 
-        public InputElement(string text, InputType inputType, string? defaultValue = null)
+        protected InputElement(string text, InputType inputType, string? defaultValue = null)
         {
-            Text = text;
+            Label = text;
             InputType = inputType;
             DefaultValue = defaultValue;
         }
+
+        protected InputElement(string text, InputType inputType, List<object> defaultValue)
+        {
+            Label = text;
+            InputType = inputType;
+            Options = defaultValue;
+        }
+
+        public static InputElement ForText(string label, string? defaultValue = null)
+        {
+            return new InputElement(label, InputType.Text, defaultValue);
+        }
+
+        public static InputElement ForPassword(string label, string? defaultValue = null)
+        {
+            return new InputElement(label, InputType.Password, defaultValue);
+        }
+
+        public static InputElement ForOptions(string label, List<object> defaultValue)
+        {
+            return new InputElement(label, InputType.Options, defaultValue);
+        }
     }
 }

src/Core/FileTime.Core/Interactions/InputType.cs

@@ -2,8 +2,8 @@ namespace FileTime.Core.Interactions
 {
     public enum InputType
     {
-        Text,
+        Options,
         Password,
-        Bool
+        Text,
     }
 }

src/Core/FileTime.Core/Providers/ContentProviderStream.cs

@@ -0,0 +1,61 @@
+using System.Threading.Tasks;
+namespace FileTime.Core.Providers
+{
+    public class ContentProviderStream : Stream
+    {
+
+        private readonly IContentReader? _contentReader;
+        private readonly IContentWriter? _contentWriter;
+        public override bool CanRead => _contentReader == null;
+
+        public override bool CanSeek => false;
+
+        public override bool CanWrite => _contentWriter == null;
+
+        public override long Length => throw new NotImplementedException();
+
+        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
+
+        public ContentProviderStream(IContentReader contentReader)
+        {
+            _contentReader = contentReader;
+        }
+
+        public ContentProviderStream(IContentWriter contentWriter)
+        {
+            _contentWriter = contentWriter;
+        }
+
+        public override void Flush()
+        {
+            throw new NotImplementedException();
+        }
+
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            if (_contentReader == null) throw new IOException("This stream is not readable");
+            var dataTask = Task.Run(async () =>  await _contentReader.ReadBytesAsync(count, offset));
+            dataTask.Wait();
+            var data = dataTask.Result;
+
+            if (data.Length > count) throw new Exception("More bytes has been read than requested");
+            Array.Copy(data, buffer, data.Length);
+            return data.Length;
+        }
+
+        public override long Seek(long offset, SeekOrigin origin)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override void SetLength(long value)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override void Write(byte[] buffer, int offset, int count)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

src/Core/FileTime.Core/Providers/IContentReader.cs

@@ -4,6 +4,6 @@ namespace FileTime.Core.Providers
     {
         int PreferredBufferSize { get; }
 
-        Task<byte[]> ReadBytesAsync(int bufferSize);
+        Task<byte[]> ReadBytesAsync(int bufferSize, int? offset = null);
     }
 }

src/Core/FileTime.Core/Timeline/CommandTimeState.cs

@@ -1,3 +1,4 @@
+using System.Threading.Tasks;
 using FileTime.Core.Command;
 
 namespace FileTime.Core.Timeline
@@ -12,7 +13,7 @@ namespace FileTime.Core.Timeline
         public CommandTimeState(ICommand command, PointInTime? startTime)
         {
             Command = command;
-            UpdateState(startTime).Wait();
+            Task.Run(async () => await UpdateState(startTime)).Wait();
         }
 
         public async Task UpdateState(PointInTime? startPoint)

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

@@ -1,3 +1,4 @@
+using System.Threading.Tasks;
 using AsyncEvent;
 using FileTime.Core.Command;
 using FileTime.Core.Models;
@@ -136,7 +137,7 @@ namespace FileTime.Core.Timeline
                 if (arg is CommandTimeState commandToRun2)
                 {
                     commandToRun = commandToRun2;
-                    _commandExecutor.ExecuteCommandAsync(commandToRun.Command, this).Wait();
+                    Task.Run(async () => await _commandExecutor.ExecuteCommandAsync(commandToRun.Command, this)).Wait();
                 }
             }
             catch (Exception e)
@@ -150,7 +151,7 @@ namespace FileTime.Core.Timeline
             }
             finally
             {
-                DisposeCommandThread(Thread.CurrentThread, commandToRun).Wait();
+                Task.Run(async () => await DisposeCommandThread(Thread.CurrentThread, commandToRun)).Wait();
             }
         }
 
@@ -238,6 +239,6 @@ namespace FileTime.Core.Timeline
             }
         }
 
-        private void RunWithLock(Action action) => RunWithLockAsync(action).Wait();
+        private void RunWithLock(Action action) => Task.Run(async () => await RunWithLockAsync(action)).Wait();
     }
 }

src/GuiApp/FileTime.Avalonia/App.axaml

@@ -202,5 +202,25 @@
 		<Style Selector="Border.SelectedTimelineCommand">
 			<Setter Property="BorderBrush" Value="{DynamicResource ForegroundBrush}"/>
 		</Style>
+
+		<Style Selector="ListBox.RadioButtonListBox">
+			<Setter Property="BorderBrush" Value="Transparent"/>
+			<Setter Property="Background" Value="Transparent"/>
+		</Style>
+		<Style Selector="ListBox.RadioButtonListBox ListBoxItem">
+			<Setter Property="Template">
+				<Setter.Value>
+					<ControlTemplate>
+						<Border>
+							<RadioButton 
+								Content="{TemplateBinding ContentPresenter.Content}"
+								VerticalAlignment="Center"
+								IsChecked="{Binding Path=IsSelected,RelativeSource={RelativeSource TemplatedParent},Mode=TwoWay}"
+								Foreground="{DynamicResource ForegroundBrush}"/>
+						</Border>
+					</ControlTemplate>
+				</Setter.Value>
+			</Setter>
+		</Style>
 	</Application.Styles>
 </Application>

src/GuiApp/FileTime.Avalonia/Application/TabContainer.cs

@@ -55,7 +55,7 @@ namespace FileTime.Avalonia.Application
                     {*/
                     /*var task = SetSelectedItemAsync(value, true);
                     Task.WaitAll(new Task[] { task }, 100);*/
-                    SetSelectedItemAsync(value, true);
+                    Task.Run(async () => await SetSelectedItemAsync(value, true)).Wait();
                     /*}
                     catch
                     {

src/GuiApp/FileTime.Avalonia/Configuration/MainConfiguration.cs

@@ -46,6 +46,7 @@ namespace FileTime.Avalonia.Configuration
                 new CommandBindingConfiguration(Commands.ChangeTimelineMode, new[] { Key.T, Key.M }),
                 new CommandBindingConfiguration(Commands.CloseTab, Key.Q),
                 new CommandBindingConfiguration(Commands.Copy, new[] { Key.Y, Key.Y }),
+                new CommandBindingConfiguration(Commands.CopyHash, new[] { Key.C, Key.H }),
                 new CommandBindingConfiguration(Commands.CopyPath, new[] { Key.C, Key.P }),
                 new CommandBindingConfiguration(Commands.CreateContainer, Key.F7),
                 new CommandBindingConfiguration(Commands.CreateContainer, new[] { Key.C, Key.C }),

src/GuiApp/FileTime.Avalonia/Misc/InputElementWrapper.cs

@@ -8,6 +8,8 @@ namespace FileTime.Avalonia.Misc
 
         public string Value { get; set; }
 
+        public object? Option { get; set; }
+
         public char? PasswordChar { get; set; }
 
         public InputElementWrapper(InputElement inputElement, string? defaultValue = null)

src/GuiApp/FileTime.Avalonia/Models/HashFunction.cs

@@ -0,0 +1,10 @@
+namespace FileTime.Avalonia.Models
+{
+    public enum HashFunction
+    {
+        MD5,
+        SHA256,
+        SHA384,
+        SHA512,
+    }
+}

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

@@ -2,12 +2,14 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using System.Security.Cryptography;
 using System.Threading.Tasks;
 using FileTime.App.Core.Clipboard;
 using FileTime.App.Core.Command;
 using FileTime.Avalonia.Application;
 using FileTime.Avalonia.IconProviders;
 using FileTime.Avalonia.Misc;
+using FileTime.Avalonia.Models;
 using FileTime.Avalonia.ViewModels;
 using FileTime.Core.Command;
 using FileTime.Core.Components;
@@ -65,6 +67,7 @@ namespace FileTime.Avalonia.Services
                 {Commands.ChangeTimelineMode, ChangeTimelineMode},
                 {Commands.CloseTab, CloseTab},
                 {Commands.Copy, Copy},
+                {Commands.CopyHash, CopyHash},
                 {Commands.CopyPath, CopyPath},
                 {Commands.CreateContainer, CreateContainer},
                 {Commands.CreateElement, CreateElement},
@@ -276,13 +279,13 @@ namespace FileTime.Avalonia.Services
                     var createContainerCommand = new CreateContainerCommand(new AbsolutePath(container), containerName);
                     await AddCommand(createContainerCommand);
                 }
-                catch(Exception e)
+                catch (Exception e)
                 {
                     _logger.LogError(e, "Error while creating container {Container}", containerName);
                 }
             };
 
-            _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Container name", InputType.Text) }, handler);
+            _dialogService.ReadInputs(new List<InputElement>() { InputElement.ForText("Container name") }, handler);
 
             return Task.CompletedTask;
         }
@@ -299,13 +302,13 @@ namespace FileTime.Avalonia.Services
                     var createElementCommand = new CreateElementCommand(new AbsolutePath(container), elementName);
                     await AddCommand(createElementCommand);
                 }
-                catch(Exception e)
+                catch (Exception e)
                 {
                     _logger.LogError(e, "Error while creating element {Element}", elementName);
                 }
             };
 
-            _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Element name", InputType.Text) }, handler);
+            _dialogService.ReadInputs(new List<InputElement>() { InputElement.ForText("Element name") }, handler);
 
             return Task.CompletedTask;
         }
@@ -487,7 +490,7 @@ namespace FileTime.Avalonia.Services
                     await AddCommand(renameCommand);
                 };
 
-                _dialogService.ReadInputs(new List<InputElement>() { new InputElement("New name", InputType.Text, selectedItem.Name) }, handler);
+                _dialogService.ReadInputs(new List<InputElement>() { InputElement.ForText("New name", selectedItem.Name) }, handler);
             }
             return Task.CompletedTask;
         }
@@ -543,7 +546,7 @@ namespace FileTime.Avalonia.Services
                 }
             };
 
-            _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Path", InputType.Text) }, handler);
+            _dialogService.ReadInputs(new List<InputElement>() { InputElement.ForText("Path") }, handler);
 
             return Task.CompletedTask;
         }
@@ -580,9 +583,17 @@ namespace FileTime.Avalonia.Services
             var currentContainer = _appState.SelectedTab.CurrentLocation.Container;
             var textToCopy = currentContainer.NativePath;
 
-            if (textToCopy != null && global::Avalonia.Application.Current?.Clipboard is global::Avalonia.Input.Platform.IClipboard clipboard)
+            if (textToCopy != null)
             {
-                await clipboard.SetTextAsync(textToCopy);
+                await CopyToClipboard(textToCopy);
+            }
+        }
+
+        private static async Task CopyToClipboard(string text)
+        {
+            if (global::Avalonia.Application.Current?.Clipboard is global::Avalonia.Input.Platform.IClipboard clipboard)
+            {
+                await clipboard.SetTextAsync(text);
             }
         }
 
@@ -633,7 +644,7 @@ namespace FileTime.Avalonia.Services
                 return Task.CompletedTask;
             };
 
-            _dialogService.ReadInputs(new List<InputElement>() { new InputElement("Command", InputType.Text) }, handler);
+            _dialogService.ReadInputs(new List<InputElement>() { InputElement.ForText("Command") }, handler);
 
             return Task.CompletedTask;
         }
@@ -840,5 +851,40 @@ namespace FileTime.Avalonia.Services
             //TODO: else
             return Task.CompletedTask;
         }
+
+        private Task CopyHash()
+        {
+            var handler = async (List<InputElementWrapper> inputs) =>
+            {
+                var hashFunction = (HashFunction?)inputs[0].Option;
+                if (hashFunction != null && _appState.SelectedTab.SelectedItem?.Item is IElement element && element.Provider.SupportsContentStreams)
+                {
+                    using var stream = new ContentProviderStream(await element.GetContentReaderAsync());
+
+                    string? hashString = null;
+                    using HashAlgorithm hashFunc = hashFunction switch
+                    {
+                        HashFunction.MD5 => MD5.Create(),
+                        HashFunction.SHA256 => SHA256.Create(),
+                        HashFunction.SHA384 => SHA384.Create(),
+                        HashFunction.SHA512 => SHA512.Create(),
+                        _ => throw new NotImplementedException()
+                    };
+
+                    var hash = hashFunc.ComputeHash(stream);
+                    hashString = string.Concat(hash.Select(b => b.ToString("X2")));
+
+                    _dialogService.ShowToastMessage($"Hash copied ({hashString})");
+                    await CopyToClipboard(hashString);
+                }
+            };
+
+            _dialogService.ReadInputs(new List<InputElement>()
+            {
+                InputElement.ForOptions("Hash function", Enum.GetValues<HashFunction>().Cast<object>().ToList())
+            }, handler);
+
+            return Task.CompletedTask;
+        }
     }
 }

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

@@ -5,6 +5,7 @@
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:vm="using:FileTime.Avalonia.ViewModels"
+	xmlns:interactions="using:FileTime.Core.Interactions"
 	xmlns:local="using:FileTime.Avalonia.Views"
 	xmlns:models="using:FileTime.Avalonia.Models"
     Title="FileTime"
@@ -470,20 +471,35 @@
 							Items="{Binding AppState.Inputs}">
 							<ItemsControl.ItemTemplate>
 								<DataTemplate>
-									<Grid MinWidth="500" ColumnDefinitions="250,*" Margin="10,5">
+									<Grid MinWidth="500" ColumnDefinitions="250,*" Margin="10,5" x:Name="ItemRoot">
 										<TextBlock
 											HorizontalAlignment="Left"
-											VerticalAlignment="Center"
+											VerticalAlignment="Top"
-											Text="{Binding InputElement.Text}" />
+											Text="{Binding InputElement.Label}" />
+										<Grid Grid.Column="1">
 											<TextBox
-											PasswordChar="{Binding PasswordChar}"
+												IsVisible="{Binding InputElement.InputType, Converter={StaticResource EqualityConverter}, ConverterParameter={x:Static interactions:InputType.Text}}"
 												AttachedToVisualTree="InputText_AttachedToVisualTree"
-											IsTabStop="True"
-											Grid.Column="1"
 												GotFocus="InputText_GotFocus"
 												LostFocus="InputText_LostFocus"
 												KeyDown="InputText_KeyDown"
+												VerticalAlignment="Top"
 												Text="{Binding Value, Mode=TwoWay}" />
+											<TextBox
+												IsVisible="{Binding InputElement.InputType, Converter={StaticResource EqualityConverter}, ConverterParameter={x:Static interactions:InputType.Password}}"
+												PasswordChar="{Binding PasswordChar}"
+												AttachedToVisualTree="InputText_AttachedToVisualTree"
+												GotFocus="InputText_GotFocus"
+												LostFocus="InputText_LostFocus"
+												KeyDown="InputText_KeyDown"
+												VerticalAlignment="Top"
+												Text="{Binding Value, Mode=TwoWay}" />
+											<ListBox 
+												Classes="RadioButtonListBox" 
+												IsVisible="{Binding InputElement.InputType, Converter={StaticResource EqualityConverter}, ConverterParameter={x:Static interactions:InputType.Options}}"
+												Items="{Binding InputElement.Options}" 
+												SelectedItem="{Binding Option}"/>
+										</Grid>
 									</Grid>
 								</DataTemplate>
 							</ItemsControl.ItemTemplate>

src/Providers/FileTime.Providers.Local/LocalContentReader.cs

@@ -1,3 +1,4 @@
+using System.Threading.Tasks;
 using FileTime.Core.Providers;
 
 namespace FileTime.Providers.Local
@@ -9,6 +10,7 @@ namespace FileTime.Providers.Local
         private bool disposed;
 
         public int PreferredBufferSize => 1024 * 1024;
+        private long? _bytesRead;
 
         public LocalContentReader(FileStream readerStream)
         {
@@ -16,12 +18,28 @@ namespace FileTime.Providers.Local
             _binaryReader = new BinaryReader(_readerStream);
         }
 
-        public Task<byte[]> ReadBytesAsync(int bufferSize)
+        public Task<byte[]> ReadBytesAsync(int bufferSize, int? offset = null)
         {
             var max = bufferSize > 0 && bufferSize < PreferredBufferSize ? bufferSize : PreferredBufferSize;
 
+            if (offset != null)
+            {
+                if (_bytesRead == null) _bytesRead = 0;
+                var buffer = new byte[max];
+                var bytesRead = _binaryReader.Read(buffer, offset.Value, max);
+                _bytesRead += bytesRead;
+
+                if (buffer.Length != bytesRead)
+                {
+                    Array.Resize(ref buffer, bytesRead);
+                }
+                return Task.FromResult(buffer);
+            }
+            else
+            {
                 return Task.FromResult(_binaryReader.ReadBytes(max));
             }
+        }
 
         ~LocalContentReader()
         {

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

@@ -21,11 +21,11 @@ namespace FileTime.Providers.Smb
             _client = client;
         }
 
-        public Task<byte[]> ReadBytesAsync(int bufferSize)
+        public Task<byte[]> ReadBytesAsync(int bufferSize, int? offset = null)
         {
             var max = bufferSize > 0 && bufferSize < (int)_client.MaxReadSize ? bufferSize : (int)_client.MaxReadSize;
 
-            var status = _smbFileStore.ReadFile(out byte[] data, _fileHandle, _bytesRead, max);
+            var status = _smbFileStore.ReadFile(out byte[] data, _fileHandle, offset ?? _bytesRead, max);
             if (status != NTStatus.STATUS_SUCCESS && status != NTStatus.STATUS_END_OF_FILE)
             {
                 throw new Exception("Failed to read from file");

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

@@ -195,8 +195,8 @@ namespace FileTime.Providers.Smb
                         var inputs = await _inputInterface.ReadInputs(
                             new InputElement[]
                             {
-                                new InputElement($"Username for '{Name}'", InputType.Text, Username ?? ""),
+                                InputElement.ForText($"Username for '{Name}'", Username ?? ""),
-                                new InputElement($"Password for '{Name}'", InputType.Password, Password ?? "")
+                                InputElement.ForPassword($"Password for '{Name}'", Password ?? "")
                             });
 
                         Username = inputs[0];