Plugins - Added removal of plugins

Plugins - Added updating plugins at runtime

src/Artemis.Core/Plugins/Plugin.cs

@@ -178,12 +178,15 @@ namespace Artemis.Core
             {
                 foreach (PluginFeature feature in Features)
                     feature.Dispose();
+                SetEnabled(false);
 
                 Kernel?.Dispose();
                 PluginLoader?.Dispose();
 
+                GC.Collect();
+                GC.WaitForPendingFinalizers();
+
                 _features.Clear();
-                SetEnabled(false);
             }
         }
         

src/Artemis.Core/Services/Interfaces/IPluginManagementService.cs

@@ -70,6 +70,12 @@ namespace Artemis.Core.Services
         /// <returns>The resulting plugin</returns>
         Plugin ImportPlugin(string fileName);
 
+        /// <summary>
+        /// Unloads and permanently removes the provided plugin
+        /// </summary>
+        /// <param name="plugin">The plugin to remove</param>
+        void RemovePlugin(Plugin plugin);
+
         /// <summary>
         ///     Enables the provided plugin feature
         /// </summary>

src/Artemis.Core/Services/PluginManagementService.cs

@@ -5,6 +5,7 @@ using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Reflection;
+using System.Runtime.Loader;
 using Artemis.Core.DeviceProviders;
 using Artemis.Core.Ninject;
 using Artemis.Storage.Entities.Plugins;
@@ -275,6 +276,7 @@ namespace Artemis.Core.Services
             plugin.PluginLoader = PluginLoader.CreateFromAssemblyFile(mainFile!, configure =>
             {
                 configure.IsUnloadable = true;
+                configure.LoadInMemory = true;
                 configure.PreferSharedTypes = true;
             });
 
@@ -430,7 +432,6 @@ namespace Artemis.Core.Services
             OnPluginDisabled(new PluginEventArgs(plugin));
         }
 
-        /// <inheritdoc />
         public Plugin ImportPlugin(string fileName)
         {
             DirectoryInfo pluginDirectory = new(Path.Combine(Constants.DataFolder, "plugins"));
@@ -449,7 +450,16 @@ namespace Artemis.Core.Services
 
             Plugin? existing = _plugins.FirstOrDefault(p => p.Guid == pluginInfo.Guid);
             if (existing != null)
-                throw new ArtemisPluginException($"A plugin with the same GUID is already loaded: {existing.Info}");
+            {
+                try
+                {
+                    RemovePlugin(existing);
+                }
+                catch (Exception e)
+                {
+                    throw new ArtemisPluginException("A plugin with the same GUID is already loaded, failed to remove old version", e);
+                }
+            }
 
             string targetDirectory = pluginInfo.Main.Split(".dll")[0].Replace("/", "").Replace("\\", "");
             string uniqueTargetDirectory = targetDirectory;
@@ -464,19 +474,38 @@ namespace Artemis.Core.Services
 
             // Extract everything in the same archive directory to the unique plugin directory
             DirectoryInfo directoryInfo = new(Path.Combine(pluginDirectory.FullName, uniqueTargetDirectory));
-            Directory.CreateDirectory(directoryInfo.FullName);
+            Utilities.CreateAccessibleDirectory(directoryInfo.FullName);
             string metaDataDirectory = metaDataFileEntry.FullName.Replace(metaDataFileEntry.Name, "");
             foreach (ZipArchiveEntry zipArchiveEntry in archive.Entries)
+            {
                 if (zipArchiveEntry.FullName.StartsWith(metaDataDirectory))
                 {
                     string target = Path.Combine(directoryInfo.FullName, zipArchiveEntry.FullName.Remove(0, metaDataDirectory.Length));
-                    zipArchiveEntry.ExtractToFile(target);
+                    // Create folders
+                    if (zipArchiveEntry.FullName.EndsWith("/"))
+                        Utilities.CreateAccessibleDirectory(Path.GetDirectoryName(target)!);
+                    // Extract files
+                    else
+                        zipArchiveEntry.ExtractToFile(target);
                 }
+            }
 
             // Load the newly extracted plugin and return the result
             return LoadPlugin(directoryInfo);
         }
 
+        public void RemovePlugin(Plugin plugin)
+        {
+            DirectoryInfo directory = plugin.Directory;
+            lock (_plugins)
+            {
+                if (_plugins.Contains(plugin))
+                    UnloadPlugin(plugin);
+            }
+
+            directory.Delete(true);
+        }
+
         #endregion
 
         #region Features

src/Artemis.UI/Screens/Settings/Tabs/Plugins/PluginSettingsTabViewModel.cs

@@ -59,12 +59,7 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
             {
                 Items.Clear();
                 await Task.Delay(200);
-                _instances = _pluginManagementService.GetAllPlugins()
+                GetPluginInstances();
-                    .Select(p => _settingsVmFactory.CreatePluginSettingsViewModel(p))
-                    .OrderBy(i => i.Plugin.Info.Name)
-                    .ToList();
-
-                UpdatePluginSearch();
             });
 
             base.OnActivate();
@@ -80,14 +75,21 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
             {
                 Plugin plugin = _pluginManagementService.ImportPlugin(dialog.FileName);
 
-                _instances = _pluginManagementService.GetAllPlugins()
+                GetPluginInstances();
-                    .Select(p => _settingsVmFactory.CreatePluginSettingsViewModel(p))
-                    .OrderBy(i => i.Plugin.Info.Name)
-                    .ToList();
                 SearchPluginInput = plugin.Info.Name;
-                
+
                 _messageService.ShowMessage($"Imported plugin: {plugin.Info.Name}");
             }
         }
+
+        public void GetPluginInstances()
+        {
+            _instances = _pluginManagementService.GetAllPlugins()
+                .Select(p => _settingsVmFactory.CreatePluginSettingsViewModel(p))
+                .OrderBy(i => i.Plugin.Info.Name)
+                .ToList();
+
+            UpdatePluginSearch();
+        }
     }
 }

src/Artemis.UI/Screens/Settings/Tabs/Plugins/PluginSettingsView.xaml

@@ -53,15 +53,28 @@
             </Grid>
 
 
-            <Button Grid.Row="1"
+            <StackPanel Grid.Row="1"
-                    Grid.Column="0"
+                        Grid.Column="0"
+                        VerticalAlignment="Bottom" 
+                        Orientation="Horizontal">
+                <Button 
                     VerticalAlignment="Bottom"
                     Style="{StaticResource MaterialDesignOutlinedButton}"
                     ToolTip="Open the plugins settings window"
                     Margin="4"
                     Command="{s:Action OpenSettings}">
-                SETTINGS
+                    SETTINGS
-            </Button>
+                </Button>
+                <Button 
+                    VerticalAlignment="Bottom"
+                    Style="{StaticResource MaterialDesignOutlinedButton}"
+                    ToolTip="Remove plugin"
+                    Margin="4"
+                    Command="{s:Action Remove}">
+                    <materialDesign:PackIcon Kind="DeleteForever" />
+                </Button>
+            </StackPanel>
+           
 
             <CheckBox Grid.Row="1"
                       Grid.Column="1"
@@ -70,7 +83,13 @@
                       Margin="8"
                       Visibility="{Binding Enabling, Converter={x:Static s:BoolToVisibilityConverter.InverseInstance}, Mode=OneWay}"
                       Style="{StaticResource MaterialDesignCheckBox}" IsChecked="{Binding IsEnabled}">
-                Plugin enabled
+                <StackPanel Orientation="Horizontal">
+                    <TextBlock>Plugin enabled</TextBlock>
+                    <materialDesign:PackIcon Kind="ShieldHalfFull" 
+                                             Margin="5 0 0 0" 
+                                             ToolTip="Plugin requires admin rights"
+                                             Visibility="{Binding Plugin.Info.RequiresAdmin, Converter={x:Static s:BoolToVisibilityConverter.Instance}, Mode=OneWay}"/>
+                </StackPanel>
             </CheckBox>
 
             <ProgressBar Grid.Row="1"

src/Artemis.UI/Screens/Settings/Tabs/Plugins/PluginSettingsViewModel.cs

@@ -19,6 +19,7 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
         private readonly IDialogService _dialogService;
         private readonly IPluginManagementService _pluginManagementService;
         private readonly ISettingsVmFactory _settingsVmFactory;
+        private readonly ICoreService _coreService;
         private readonly IMessageService _messageService;
         private readonly IWindowManager _windowManager;
         private bool _enabling;
@@ -26,6 +27,7 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
 
         public PluginSettingsViewModel(Plugin plugin,
             ISettingsVmFactory settingsVmFactory,
+            ICoreService coreService,
             IWindowManager windowManager,
             IDialogService dialogService,
             IPluginManagementService pluginManagementService,
@@ -34,6 +36,7 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
             Plugin = plugin;
 
             _settingsVmFactory = settingsVmFactory;
+            _coreService = coreService;
             _windowManager = windowManager;
             _dialogService = dialogService;
             _pluginManagementService = pluginManagementService;
@@ -82,6 +85,24 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
             }
         }
 
+        public async Task Remove()
+        {
+            bool confirmed = await _dialogService.ShowConfirmDialog("Delete plugin", "Are you sure you want to delete this plugin?");
+            if (!confirmed)
+                return;
+
+            try
+            {
+                _pluginManagementService.RemovePlugin(Plugin);
+                ((PluginSettingsTabViewModel) Parent).GetPluginInstances();
+            }
+            catch (Exception e)
+            {
+                _dialogService.ShowExceptionDialog("Failed to remove plugin", e);
+                throw;
+            }
+        }
+
         public void ShowLogsFolder()
         {
             try
@@ -124,6 +145,18 @@ namespace Artemis.UI.Screens.Settings.Tabs.Plugins
             {
                 Enabling = true;
 
+                if (Plugin.Info.RequiresAdmin && !_coreService.IsElevated)
+                {
+                    bool confirmed = await _dialogService.ShowConfirmDialog("Enable plugin", "This plugin requires admin rights, are you sure you want to enable it?");
+                    if (!confirmed)
+                    {
+                        Enabling = false;
+                        NotifyOfPropertyChange(nameof(IsEnabled));
+                        NotifyOfPropertyChange(nameof(CanOpenSettings));
+                        return;
+                    }
+                }
+
                 try
                 {
                     await Task.Run(() => _pluginManagementService.EnablePlugin(Plugin, true));