Release v39.1

Closes #232

README.md

@@ -16,7 +16,6 @@ Fork the repository and clone it to your computer (if you've never used git, you
 
 Folder organization:
 * `app/` contains a Visual Studio solution for the desktop app
-* `lib/` contains utilities required to build the project
 * `web/` contains source code of the [official website](https://dht.chylex.com), which can be used as a template when making your own website
 
 To start editing source code for the desktop app, install the [.NET 8 SDK](https://dotnet.microsoft.com/en-us/download/dotnet/8.0), and then open `app/DiscordHistoryTracker.sln` in [Visual Studio](https://visualstudio.microsoft.com/downloads/) or [Rider](https://www.jetbrains.com/rider/).
@@ -29,22 +28,13 @@ To build a `Release` version of the desktop app, follow the instructions for you
 
 #### Release – Windows (64-bit)
 
-1. Install [Python 3](https://www.python.org/downloads), and ensure the `python` executable is in your `PATH`
+1. Install [Powershell 5](https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-on-windows) or newer (on Windows 10, the included version of Powershell should be enough)
-2. Install [Powershell 5](https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-on-windows) or newer (on Windows 10, the included version of Powershell should be enough)
-
-The `lib/` folder contains an installation of [Node](https://nodejs.org/en) and [uglify-js](https://www.npmjs.com/package/uglify-js), which are used to minify the tracking script. This installation will only work on 64-bit Windows; building on 32-bit Windows is not supported, but you can try.
 
 Run the `app/build.bat` script, and read the [Distribution](#distribution) section below.
 
 #### Release – Other Operating Systems
 
-1. Install [Python 3](https://www.python.org/downloads), and ensure the `python` executable exists and launches Python 3
+1. Install the `zip` package from your repository
-   - On Debian and derivatives, you can install `python-is-python3`
-   - On other distributions, you can create a link manually, for ex. `ln -s /usr/bin/python3 /usr/bin/python`
-   - If you don't want `python` to mean Python 3, then edit `Desktop.csproj` and change `python` to `python3`
-2. Install [Node + npm](https://nodejs.org/en)
-3. Install [uglify-js](https://www.npmjs.com/package/uglify-js) globally (`npm install -g uglify-js`)
-4. Install the `zip` package from your repository
 
 Run the `app/build.sh` script, and read the [Distribution](#distribution) section below.
 
@@ -52,4 +42,4 @@ Run the `app/build.sh` script, and read the [Distribution](#distribution) sectio
 
 The mentioned build scripts will prepare `Release` builds ready for distribution. Once the script finishes, the `app/bin` folder will contain self-contained executables for each major operating system, and a portable version that works on all other systems but requires .NET 8 to be installed.
 
-Note that when building on Windows, the generated `.zip` files for Linux and Mac will not have correct file permissions, so it will not be possible to run them by double-clicking `DiscordHistoryTracker`. I tried using Python to re-create the archives with correct file permissions, but found that Linux `zip` tools could not see them. The only working solution is building the Windows + portable version on Windows, and Linux + Mac version on Linux.
+Note that when building on Windows, the generated `.zip` files for Linux and Mac will not have correct file permissions, so it will not be possible to run them by double-clicking the executable. Since .NET 8 fixed several issues with publishing Windows executables on Linux, I recommend using Linux to build the app for all operating systems.

app/.idea/.idea.DiscordHistoryTracker/.idea/codeStyles/Project.xml

@@ -29,9 +29,6 @@
     <H2CodeStyleSettings version="6">
       <option name="USE_GENERIC_STYLE" value="true" />
     </H2CodeStyleSettings>
-    <H2CodeStyleSettings version="6">
-      <option name="USE_GENERIC_STYLE" value="true" />
-    </H2CodeStyleSettings>
     <HSQLCodeStyleSettings version="6">
       <option name="USE_GENERIC_STYLE" value="true" />
     </HSQLCodeStyleSettings>

app/.idea/.idea.DiscordHistoryTracker/.idea/runConfigurations/Desktop.xml

@@ -1,8 +1,8 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Desktop" type="DotNetProject" factoryName=".NET Project">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/Desktop/bin/Debug/net5.0/DiscordHistoryTracker.exe" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Desktop/debug/DiscordHistoryTracker.exe" />
     <option name="PROGRAM_PARAMETERS" value="" />
-    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/Desktop/bin/Debug/net5.0" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.artifacts/bin/Desktop/debug" />
     <option name="PASS_PARENT_ENVS" value="1" />
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
     <option name="USE_MONO" value="0" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net5.0" />
+    <option name="PROJECT_TFM" value="net8.0" />
     <method v="2">
       <option name="Build" />
     </method>

app/.idea/.idea.DiscordHistoryTracker/.idea/runConfigurations/Minify.xml

@@ -1,23 +0,0 @@
-<component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="Minify" type="PythonConfigurationType" factoryName="Python">
-    <module name="rider.module" />
-    <option name="INTERPRETER_OPTIONS" value="" />
-    <option name="PARENT_ENVS" value="true" />
-    <envs>
-      <env name="PYTHONUNBUFFERED" value="1" />
-    </envs>
-    <option name="SDK_HOME" value="" />
-    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
-    <option name="IS_MODULE_SDK" value="false" />
-    <option name="ADD_CONTENT_ROOTS" value="false" />
-    <option name="ADD_SOURCE_ROOTS" value="false" />
-    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/minify.py" />
-    <option name="PARAMETERS" value="" />
-    <option name="SHOW_COMMAND_LINE" value="false" />
-    <option name="EMULATE_TERMINAL" value="false" />
-    <option name="MODULE_MODE" value="false" />
-    <option name="REDIRECT_INPUT" value="false" />
-    <option name="INPUT_FILE" value="" />
-    <method v="2" />
-  </configuration>
-</component>

app/Desktop/App.axaml

@@ -2,7 +2,8 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:common="clr-namespace:DHT.Desktop.Common"
              xmlns:system="clr-namespace:System;assembly=System.Runtime"
-             x:Class="DHT.Desktop.App">
+             x:Class="DHT.Desktop.App"
+             RequestedThemeVariant="Light">
 
     <Application.Styles>
 

app/Desktop/Common/DatabaseGui.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Threading;
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Platform.Storage;
+using Avalonia.Threading;
 using DHT.Desktop.Dialogs.File;
 using DHT.Desktop.Dialogs.Message;
 using DHT.Server.Database;
@@ -41,11 +43,16 @@ static class DatabaseGui {
 		});
 	}
 
-	public static async Task<IDatabaseFile?> TryOpenOrCreateDatabaseFromPath(string path, Window window, Func<Task<bool>> checkCanUpgradeDatabase) {
+	public static async Task<IDatabaseFile?> TryOpenOrCreateDatabaseFromPath(string path, Window window, ISchemaUpgradeCallbacks schemaUpgradeCallbacks) {
+		var prevSynchronizationContext = SynchronizationContext.Current;
+		SynchronizationContext.SetSynchronizationContext(new AvaloniaSynchronizationContext());
+		var taskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
+		SynchronizationContext.SetSynchronizationContext(prevSynchronizationContext);
+		
 		IDatabaseFile? file = null;
 
 		try {
-			file = await SqliteDatabaseFile.OpenOrCreate(path, checkCanUpgradeDatabase);
+			file = await SqliteDatabaseFile.OpenOrCreate(path, schemaUpgradeCallbacks, taskScheduler);
 		} catch (InvalidDatabaseVersionException ex) {
 			await Dialog.ShowOk(window, "Database Error", "Database '" + Path.GetFileName(path) + "' appears to be corrupted (invalid version: " + ex.Version + ").");
 		} catch (DatabaseTooNewException ex) {

app/Desktop/Desktop.csproj

@@ -1,36 +1,33 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  
+  <PropertyGroup>
+    <RootNamespace>DHT.Desktop</RootNamespace>
+    <AssemblyName>DiscordHistoryTracker</AssemblyName>
+    <PackageId>DiscordHistoryTracker</PackageId>
+  </PropertyGroup>
+  
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <Nullable>enable</Nullable>
-    <AssemblyName>DiscordHistoryTracker</AssemblyName>
-    <RootNamespace>DHT.Desktop</RootNamespace>
-    <PackageId>DiscordHistoryTracker</PackageId>
-    <Authors>chylex</Authors>
-    <Company>DiscordHistoryTracker</Company>
-    <Product>DiscordHistoryTracker</Product>
     <ApplicationIcon>./Resources/icon.ico</ApplicationIcon>
+    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
     <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
-    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
-    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
-    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>none</DebugType>
   </PropertyGroup>
+  
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="11.0.5" />
+    <PackageReference Include="Avalonia" Version="11.0.6" />
-    <PackageReference Include="Avalonia.Controls.DataGrid" Version="11.0.5" />
+    <PackageReference Include="Avalonia.Controls.DataGrid" Version="11.0.6" />
-    <PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.0.5" />
+    <PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.0.6" />
-    <PackageReference Include="Avalonia.Desktop" Version="11.0.5" />
+    <PackageReference Include="Avalonia.Desktop" Version="11.0.6" />
-    <PackageReference Include="Avalonia.Diagnostics" Version="11.0.5" Condition=" '$(Configuration)' == 'Debug' " />
+    <PackageReference Include="Avalonia.Diagnostics" Version="11.0.6" Condition=" '$(Configuration)' == 'Debug' " />
-    <PackageReference Include="Avalonia.Fonts.Inter" Version="11.0.5" />
+    <PackageReference Include="Avalonia.Fonts.Inter" Version="11.0.6" />
-    <PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.5" />
+    <PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.6" />
   </ItemGroup>
+  
   <ItemGroup>
     <ProjectReference Include="..\Server\Server.csproj" />
   </ItemGroup>
+  
   <ItemGroup>
     <Compile Include="..\Version.cs" Link="Version.cs" />
     <Compile Update="Dialogs\TextBox\TextBoxDialog.axaml.cs">
@@ -38,22 +35,11 @@
       <SubType>Code</SubType>
     </Compile>
   </ItemGroup>
+  
   <ItemGroup>
     <AvaloniaResource Include="Resources/icon.ico" />
-    <EmbeddedResource Include="../Resources/Tracker/bootstrap.js">
+    <EmbeddedResource Include="Resources/tracker-loader.js">
-      <LogicalName>Tracker\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <LogicalName>tracker-loader.js</LogicalName>
-      <Link>Resources/Tracker/%(RecursiveDir)%(Filename)%(Extension)</Link>
-      <Visible>false</Visible>
-    </EmbeddedResource>
-    <EmbeddedResource Include="../Resources/Tracker/scripts/**" Condition=" '$(Configuration)' == 'Debug' ">
-      <LogicalName>Tracker\scripts\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
-      <Link>Resources/Tracker/scripts/%(RecursiveDir)%(Filename)%(Extension)</Link>
-      <Visible>false</Visible>
-    </EmbeddedResource>
-    <EmbeddedResource Include="../Resources/Tracker/styles/**">
-      <LogicalName>Tracker\styles\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
-      <Link>Resources/Tracker/styles/%(RecursiveDir)%(Filename)%(Extension)</Link>
-      <Visible>false</Visible>
     </EmbeddedResource>
     <EmbeddedResource Include="../Resources/Viewer/**">
       <LogicalName>Viewer\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
@@ -61,19 +47,5 @@
       <Visible>false</Visible>
     </EmbeddedResource>
   </ItemGroup>
-  <Target Name="MinifyResources" BeforeTargets="PrepareForBuild" Condition=" '$(Configuration)' == 'Release' ">
+  
-    <PropertyGroup>
-      <MinifiedResourceDir>$(ProjectDir)bin/.res/scripts</MinifiedResourceDir>
-    </PropertyGroup>
-    <ItemGroup>
-      <UpToDateCheckInput Include="$(ProjectDir)../Resources/Tracker/scripts/**" Visible="false" />
-      <EmbeddedResource Include="$(MinifiedResourceDir)/discord.js" LogicalName="Tracker\scripts\discord.js" Visible="false" />
-      <EmbeddedResource Include="$(MinifiedResourceDir)/dom.js" LogicalName="Tracker\scripts\dom.js" Visible="false" />
-      <EmbeddedResource Include="$(MinifiedResourceDir)/gui.js" LogicalName="Tracker\scripts\gui.js" Visible="false" />
-      <EmbeddedResource Include="$(MinifiedResourceDir)/settings.js" LogicalName="Tracker\scripts\settings.js" Visible="false" />
-      <EmbeddedResource Include="$(MinifiedResourceDir)/state.js" LogicalName="Tracker\scripts\state.js" Visible="false" />
-    </ItemGroup>
-    <RemoveDir Directories="$(ProjectDir)bin/.res/scripts" />
-    <Exec Command="python $(ProjectDir)../Resources/minify.py" WorkingDirectory="$(ProjectDir)../Resources" IgnoreExitCode="false" />
-  </Target>
 </Project>

app/Desktop/Dialogs/CheckBox/CheckBoxDialog.axaml

@@ -5,6 +5,7 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.CheckBox"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.CheckBox.CheckBoxDialog"
+        x:DataType="namespace:CheckBoxDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Dialogs/Message/MessageDialog.axaml

@@ -5,6 +5,7 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Message"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.Message.MessageDialog"
+        x:DataType="namespace:MessageDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Dialogs/Progress/IProgressCallback.cs

@@ -4,4 +4,5 @@ namespace DHT.Desktop.Dialogs.Progress;
 
 interface IProgressCallback {
 	Task Update(string message, int finishedItems, int totalItems);
+	Task Hide();
 }

app/Desktop/Dialogs/Progress/ProgressDialog.axaml

@@ -5,6 +5,7 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Progress"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.Progress.ProgressDialog"
+        x:DataType="namespace:ProgressDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Opened="OnOpened"
@@ -31,12 +32,18 @@
         </Style>
     </Window.Styles>
 
-    <StackPanel Margin="20">
+    <ItemsRepeater ItemsSource="{Binding Items}" Margin="0 10">
-        <DockPanel>
+        <ItemsRepeater.ItemTemplate>
-            <TextBlock DockPanel.Dock="Right" Text="{Binding Items}" Classes="items" />
+            <DataTemplate>
-            <TextBlock DockPanel.Dock="Left" Text="{Binding Message}" />
+                <StackPanel Margin="20 10" IsHitTestVisible="{Binding IsVisible}" Opacity="{Binding Opacity}">
-        </DockPanel>
+                    <DockPanel>
-        <ProgressBar Value="{Binding Progress}" />
+                        <TextBlock DockPanel.Dock="Right" Text="{Binding Items}" Classes="items" />
-    </StackPanel>
+                        <TextBlock DockPanel.Dock="Left" Text="{Binding Message}" />
+                    </DockPanel>
+                    <ProgressBar Value="{Binding Progress}" />
+                </StackPanel>
+            </DataTemplate>
+        </ItemsRepeater.ItemTemplate>
+    </ItemsRepeater>
 
 </Window>

app/Desktop/Dialogs/Progress/ProgressDialog.axaml.cs

@@ -8,6 +8,7 @@ namespace DHT.Desktop.Dialogs.Progress;
 [SuppressMessage("ReSharper", "MemberCanBeInternal")]
 public sealed partial class ProgressDialog : Window {
 	private bool isFinished = false;
+	private Task progressTask = Task.CompletedTask;
 
 	public ProgressDialog() {
 		InitializeComponent();
@@ -15,7 +16,8 @@ public sealed partial class ProgressDialog : Window {
 
 	public void OnOpened(object? sender, EventArgs e) {
 		if (DataContext is ProgressDialogModel model) {
-			Task.Run(model.StartTask).ContinueWith(OnFinished, TaskScheduler.FromCurrentSynchronizationContext());
+			progressTask = Task.Run(model.StartTask);
+			progressTask.ContinueWith(OnFinished, TaskScheduler.FromCurrentSynchronizationContext());
 		}
 	}
 
@@ -27,4 +29,9 @@ public sealed partial class ProgressDialog : Window {
 		isFinished = true;
 		Close();
 	}
+
+	public async Task ShowProgressDialog(Window owner) {
+		await ShowDialog(owner);
+		await progressTask;
+	}
 }

app/Desktop/Dialogs/Progress/ProgressDialogModel.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using Avalonia.Threading;
 using DHT.Desktop.Common;
@@ -9,57 +11,43 @@ namespace DHT.Desktop.Dialogs.Progress;
 sealed class ProgressDialogModel : BaseModel {
 	public string Title { get; init; } = "";
 
-	private string message = "";
+	public IReadOnlyList<ProgressItem> Items { get; } = Array.Empty<ProgressItem>();
-
-	public string Message {
-		get => message;
-		private set => Change(ref message, value);
-	}
-
-	private string items = "";
-
-	public string Items {
-		get => items;
-		private set => Change(ref items, value);
-	}
-
-	private int progress = 0;
-
-	public int Progress {
-		get => progress;
-		private set => Change(ref progress, value);
-	}
 
 	private readonly TaskRunner? task;
 
 	[Obsolete("Designer")]
 	public ProgressDialogModel() {}
 
-	public ProgressDialogModel(TaskRunner task) {
+	public ProgressDialogModel(TaskRunner task, int progressItems = 1) {
+		this.Items = Enumerable.Range(0, progressItems).Select(static _ => new ProgressItem()).ToArray();
 		this.task = task;
 	}
 
 	internal async Task StartTask() {
 		if (task != null) {
-			await task(new Callback(this));
+			await task(Items.Select(static item => new Callback(item)).ToArray());
 		}
 	}
 
-	public delegate Task TaskRunner(IProgressCallback callback);
+	public delegate Task TaskRunner(IReadOnlyList<IProgressCallback> callbacks);
 
 	private sealed class Callback : IProgressCallback {
-		private readonly ProgressDialogModel model;
+		private readonly ProgressItem item;
 
-		public Callback(ProgressDialogModel model) {
+		public Callback(ProgressItem item) {
-			this.model = model;
+			this.item = item;
 		}
 
-		async Task IProgressCallback.Update(string message, int finishedItems, int totalItems) {
+		public async Task Update(string message, int finishedItems, int totalItems) {
 			await Dispatcher.UIThread.InvokeAsync(() => {
-				model.Message = message;
+				item.Message = message;
-				model.Items = finishedItems.Format() + " / " + totalItems.Format();
+				item.Items = totalItems == 0 ? string.Empty : finishedItems.Format() + " / " + totalItems.Format();
-				model.Progress = 100 * finishedItems / totalItems;
+				item.Progress = totalItems == 0 ? 0 : 100 * finishedItems / totalItems;
 			});
 		}
+
+		public Task Hide() {
+			return Update(string.Empty, 0, 0);
+		}
 	}
 }

app/Desktop/Dialogs/Progress/ProgressItem.cs

@@ -0,0 +1,41 @@
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Dialogs.Progress; 
+
+sealed class ProgressItem : BaseModel {
+	private bool isVisible = false;
+
+	public bool IsVisible {
+		get => isVisible;
+		private set {
+			Change(ref isVisible, value);
+			OnPropertyChanged(nameof(Opacity));
+		}
+	}
+	
+	public double Opacity => IsVisible ? 1.0 : 0.0;
+
+	private string message = "";
+
+	public string Message {
+		get => message;
+		set {
+			Change(ref message, value);
+			IsVisible = !string.IsNullOrEmpty(value);
+		}
+	}
+
+	private string items = "";
+
+	public string Items {
+		get => items;
+		set => Change(ref items, value);
+	}
+
+	private int progress = 0;
+
+	public int Progress {
+		get => progress;
+		set => Change(ref progress, value);
+	}
+}

app/Desktop/Dialogs/TextBox/TextBoxDialog.axaml

@@ -5,6 +5,7 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.TextBox"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.TextBox.TextBoxDialog"
+        x:DataType="namespace:TextBoxDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Discord/DiscordAppSettings.cs

@@ -1,9 +1,9 @@
 using System;
-using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Runtime.InteropServices;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using DHT.Utils.Logging;
 using static System.Environment.SpecialFolder;
@@ -47,12 +47,12 @@ static class DiscordAppSettings {
 		}
 	}
 
-	private static bool AreDevToolsEnabled(Dictionary<string, object?> json) {
+	private static bool AreDevToolsEnabled(JsonObject json) {
-		return json.TryGetValue(JsonKeyDevTools, out var value) && value is JsonElement { ValueKind: JsonValueKind.True };
+		return json.TryGetPropertyValue(JsonKeyDevTools, out var node) && node?.GetValueKind() == JsonValueKind.True;
 	}
 
 	public static async Task<SettingsJsonResult> ConfigureDevTools(bool enable) {
-		Dictionary<string, object?> json;
+		JsonObject json;
 
 		try {
 			json = await ReadSettingsJson();
@@ -109,13 +109,13 @@ static class DiscordAppSettings {
 		return SettingsJsonResult.Success;
 	}
 
-	private static async Task<Dictionary<string, object?>> ReadSettingsJson() {
+	private static async Task<JsonObject> ReadSettingsJson() {
 		await using var stream = new FileStream(JsonFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
-		return await JsonSerializer.DeserializeAsync<Dictionary<string, object?>?>(stream) ?? throw new JsonException();
+		return await JsonSerializer.DeserializeAsync(stream, DiscordAppSettingsJsonContext.Default.JsonObject) ?? throw new JsonException();
 	}
 
-	private static async Task WriteSettingsJson(Dictionary<string, object?> json) {
+	private static async Task WriteSettingsJson(JsonObject json) {
 		await using var stream = new FileStream(JsonFilePath, FileMode.Truncate, FileAccess.Write, FileShare.None);
-		await JsonSerializer.SerializeAsync(stream, json, new JsonSerializerOptions { WriteIndented = true });
+		await JsonSerializer.SerializeAsync(stream, json, DiscordAppSettingsJsonContext.Default.JsonObject);
 	}
 }

app/Desktop/Discord/DiscordAppSettingsJsonContext.cs

@@ -0,0 +1,8 @@
+using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;
+
+namespace DHT.Desktop.Discord;
+
+[JsonSourceGenerationOptions(GenerationMode = JsonSourceGenerationMode.Default, WriteIndented = true)]
+[JsonSerializable(typeof(JsonObject))]
+sealed partial class DiscordAppSettingsJsonContext : JsonSerializerContext {}

app/Desktop/Main/AboutWindow.axaml

@@ -5,6 +5,7 @@
         xmlns:main="clr-namespace:DHT.Desktop.Main"
         mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="295"
         x:Class="DHT.Desktop.Main.AboutWindow"
+        x:DataType="main:AboutWindowModel"
         Title="About Discord History Tracker"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="480" Height="295" CanResize="False"

app/Desktop/Main/Controls/AttachmentFilterPanel.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.AttachmentFilterPanel">
+             x:Class="DHT.Desktop.Main.Controls.AttachmentFilterPanel"
+             x:DataType="controls:AttachmentFilterPanelModel">
 
     <Design.DataContext>
         <controls:AttachmentFilterPanelModel />

app/Desktop/Main/Controls/MessageFilterPanel.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.MessageFilterPanel">
+             x:Class="DHT.Desktop.Main.Controls.MessageFilterPanel"
+             x:DataType="controls:MessageFilterPanelModel">
 
     <Design.DataContext>
         <controls:MessageFilterPanelModel />

app/Desktop/Main/Controls/ServerConfigurationPanel.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.ServerConfigurationPanel">
+             x:Class="DHT.Desktop.Main.Controls.ServerConfigurationPanel"
+             x:DataType="controls:ServerConfigurationPanelModel">
 
     <Design.DataContext>
         <controls:ServerConfigurationPanelModel />

app/Desktop/Main/Controls/StatusBar.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.StatusBar">
+             x:Class="DHT.Desktop.Main.Controls.StatusBar"
+             x:DataType="controls:StatusBarModel">
 
     <Design.DataContext>
         <controls:StatusBarModel />

app/Desktop/Main/MainWindow.axaml

@@ -5,6 +5,7 @@
         xmlns:main="clr-namespace:DHT.Desktop.Main"
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="DHT.Desktop.Main.MainWindow"
+        x:DataType="main:MainWindowModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="800" Height="500"

app/Desktop/Main/Pages/AdvancedPage.axaml

@@ -5,7 +5,8 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.AdvancedPage">
+             x:Class="DHT.Desktop.Main.Pages.AdvancedPage"
+             x:DataType="pages:AdvancedPageModel">
 
     <Design.DataContext>
         <pages:AdvancedPageModel />

app/Desktop/Main/Pages/AttachmentsPage.axaml

@@ -5,7 +5,8 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.AttachmentsPage">
+             x:Class="DHT.Desktop.Main.Pages.AttachmentsPage"
+             x:DataType="pages:AttachmentsPageModel">
 
     <Design.DataContext>
         <pages:AttachmentsPageModel />
@@ -35,7 +36,7 @@
             <TextBlock Text="{Binding DownloadMessage}" Margin="10 0 0 0" VerticalAlignment="Center" DockPanel.Dock="Left" />
             <ProgressBar Value="{Binding DownloadProgress}" IsVisible="{Binding IsDownloading}" Margin="15 0" VerticalAlignment="Center" DockPanel.Dock="Right" />
         </DockPanel>
-        <controls:AttachmentFilterPanel DataContext="{Binding FilterModel}" IsEnabled="{Binding !DataContext.IsDownloading, RelativeSource={RelativeSource AncestorType=UserControl}}" />
+        <controls:AttachmentFilterPanel DataContext="{Binding FilterModel}" IsEnabled="{Binding !IsDownloading, RelativeSource={RelativeSource AncestorType=pages:AttachmentsPageModel}}" />
         <StackPanel Orientation="Vertical" Spacing="12">
             <Expander Header="Download Status" IsExpanded="True">
                 <DataGrid ItemsSource="{Binding StatisticsRows}" AutoGenerateColumns="False" CanUserReorderColumns="False" CanUserResizeColumns="False" CanUserSortColumns="False" IsReadOnly="True">

app/Desktop/Main/Pages/DatabasePage.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.DatabasePage">
+             x:Class="DHT.Desktop.Main.Pages.DatabasePage"
+             x:DataType="pages:DatabasePageModel">
 
     <Design.DataContext>
         <pages:DatabasePageModel />

app/Desktop/Main/Pages/DatabasePageModel.cs

@@ -17,6 +17,7 @@ using DHT.Desktop.Dialogs.TextBox;
 using DHT.Server.Data;
 using DHT.Server.Database;
 using DHT.Server.Database.Import;
+using DHT.Server.Database.Sqlite;
 using DHT.Utils.Logging;
 using DHT.Utils.Models;
 
@@ -77,31 +78,18 @@ sealed class DatabasePageModel : BaseModel {
 		}
 
 		ProgressDialog progressDialog = new ProgressDialog();
-		progressDialog.DataContext = new ProgressDialogModel(async callback => await MergeWithDatabaseFromPaths(Db, paths, progressDialog, callback)) {
+		progressDialog.DataContext = new ProgressDialogModel(async callbacks => await MergeWithDatabaseFromPaths(Db, paths, progressDialog, callbacks[0])) {
 			Title = "Database Merge"
 		};
 
-		await progressDialog.ShowDialog(window);
+		await progressDialog.ShowProgressDialog(window);
 	}
 
 	private static async Task MergeWithDatabaseFromPaths(IDatabaseFile target, string[] paths, ProgressDialog dialog, IProgressCallback callback) {
-		int total = paths.Length;
+		var schemaUpgradeCallbacks = new SchemaUpgradeCallbacks(dialog, paths.Length);
-
+		
-		DialogResult.YesNo? upgradeResult = null;
-
-		async Task<bool> CheckCanUpgradeDatabase() {
-			upgradeResult ??= total > 1
-				                  ? await DatabaseGui.ShowCanUpgradeMultipleDatabaseDialog(dialog)
-				                  : await DatabaseGui.ShowCanUpgradeDatabaseDialog(dialog);
-
-			return DialogResult.YesNo.Yes == upgradeResult;
-		}
-
 		await PerformImport(target, paths, dialog, callback, "Database Merge", "Database Error", "database file", async path => {
-			SynchronizationContext? prevSyncContext = SynchronizationContext.Current;
+			IDatabaseFile? db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, dialog, schemaUpgradeCallbacks);
-			SynchronizationContext.SetSynchronizationContext(new AvaloniaSynchronizationContext());
-			IDatabaseFile? db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, dialog, CheckCanUpgradeDatabase);
-			SynchronizationContext.SetSynchronizationContext(prevSyncContext);
 
 			if (db == null) {
 				return false;
@@ -116,6 +104,41 @@ sealed class DatabasePageModel : BaseModel {
 		});
 	}
 
+	private sealed class SchemaUpgradeCallbacks : ISchemaUpgradeCallbacks {
+		private readonly ProgressDialog dialog;
+		private readonly int total;
+		private bool? decision;
+		
+		public SchemaUpgradeCallbacks(ProgressDialog dialog, int total) {
+			this.total = total;
+			this.dialog = dialog;
+		}
+
+		public async Task<bool> CanUpgrade() {
+			return decision ??= (total > 1
+				                     ? await DatabaseGui.ShowCanUpgradeMultipleDatabaseDialog(dialog)
+				                     : await DatabaseGui.ShowCanUpgradeDatabaseDialog(dialog)) == DialogResult.YesNo.Yes;
+		}
+
+		public Task Start(int versionSteps, Func<ISchemaUpgradeCallbacks.IProgressReporter, Task> doUpgrade) {
+			return doUpgrade(new NullReporter());
+		}
+
+		private sealed class NullReporter : ISchemaUpgradeCallbacks.IProgressReporter {
+			public Task NextVersion() {
+				return Task.CompletedTask;
+			}
+
+			public Task MainWork(string message, int finishedItems, int totalItems) {
+				return Task.CompletedTask;
+			}
+
+			public Task SubWork(string message, int finishedItems, int totalItems) {
+				return Task.CompletedTask;
+			}
+		}
+	}
+
 	public async void ImportLegacyArchive() {
 		var paths = await window.StorageProvider.OpenFiles(new FilePickerOpenOptions {
 			Title = "Open Legacy DHT Archive",
@@ -128,11 +151,11 @@ sealed class DatabasePageModel : BaseModel {
 		}
 
 		ProgressDialog progressDialog = new ProgressDialog();
-		progressDialog.DataContext = new ProgressDialogModel(async callback => await ImportLegacyArchiveFromPaths(Db, paths, progressDialog, callback)) {
+		progressDialog.DataContext = new ProgressDialogModel(async callbacks => await ImportLegacyArchiveFromPaths(Db, paths, progressDialog, callbacks[0])) {
 			Title = "Legacy Archive Import"
 		};
 
-		await progressDialog.ShowDialog(window);
+		await progressDialog.ShowProgressDialog(window);
 	}
 
 	private static async Task ImportLegacyArchiveFromPaths(IDatabaseFile target, string[] paths, ProgressDialog dialog, IProgressCallback callback) {

app/Desktop/Main/Pages/DebugPage.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.DebugPage">
+             x:Class="DHT.Desktop.Main.Pages.DebugPage"
+             x:DataType="pages:DebugPageModel">
     
     <Design.DataContext>
         <pages:DebugPageModel />

app/Desktop/Main/Pages/DebugPageModel.cs

@@ -45,12 +45,12 @@ namespace DHT.Desktop.Main.Pages {
 			}
 
 			ProgressDialog progressDialog = new ProgressDialog {
-				DataContext = new ProgressDialogModel(async callback => await GenerateRandomData(channels, users, messages, callback)) {
+				DataContext = new ProgressDialogModel(async callbacks => await GenerateRandomData(channels, users, messages, callbacks[0])) {
 					Title = "Generating Random Data"
 				}
 			};
 
-			await progressDialog.ShowDialog(window);
+			await progressDialog.ShowProgressDialog(window);
 		}
 
 		private const int BatchSize = 500;

app/Desktop/Main/Pages/TrackingPage.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.TrackingPage">
+             x:Class="DHT.Desktop.Main.Pages.TrackingPage"
+             x:DataType="pages:TrackingPageModel">
 
     <Design.DataContext>
         <pages:TrackingPageModel />

app/Desktop/Main/Pages/TrackingPageModel.cs

@@ -52,14 +52,10 @@ sealed class TrackingPageModel : BaseModel {
 			OnPropertyChanged(nameof(IsToggleAppDevToolsButtonEnabled));
 		}
 	}
-
+	
 	public async Task<bool> OnClickCopyTrackingScript() {
-		string bootstrap = await Resources.ReadTextAsync("Tracker/bootstrap.js");
+		string url = $"http://127.0.0.1:{ServerManager.Port}/get-tracking-script?token={HttpUtility.UrlEncode(ServerManager.Token)}";
-		string script = bootstrap.Replace("= 0; /*[PORT]*/", "= " + ServerManager.Port + ";")
+		string script = (await Resources.ReadTextAsync("tracker-loader.js")).Trim().Replace("{url}", url);
-		                         .Replace("/*[TOKEN]*/", HttpUtility.JavaScriptStringEncode(ServerManager.Token))
-		                         .Replace("/*[IMPORTS]*/", await Resources.ReadJoinedAsync("Tracker/scripts/", '\n'))
-		                         .Replace("/*[CSS-CONTROLLER]*/", await Resources.ReadTextAsync("Tracker/styles/controller.css"))
-		                         .Replace("/*[CSS-SETTINGS]*/", await Resources.ReadTextAsync("Tracker/styles/settings.css"));
 
 		var clipboard = window.Clipboard;
 		if (clipboard == null) {

app/Desktop/Main/Pages/ViewerPage.axaml

@@ -5,7 +5,8 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.ViewerPage">
+             x:Class="DHT.Desktop.Main.Pages.ViewerPage"
+             x:DataType="pages:ViewerPageModel">
 
     <Design.DataContext>
         <pages:ViewerPageModel />

app/Desktop/Main/Pages/ViewerPageModel.cs

@@ -35,7 +35,7 @@ sealed class ViewerPageModel : BaseModel, IDisposable {
 		set => Change(ref hasFilters, value);
 	}
 
-	private MessageFilterPanelModel FilterModel { get; }
+	public MessageFilterPanelModel FilterModel { get; }
 
 	private readonly Window window;
 	private readonly IDatabaseFile db;

app/Desktop/Main/Screens/MainContentScreen.axaml

@@ -5,7 +5,8 @@
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Screens.MainContentScreen">
+             x:Class="DHT.Desktop.Main.Screens.MainContentScreen"
+             x:DataType="screens:MainContentScreenModel">
 
     <Design.DataContext>
         <screens:MainContentScreenModel />

app/Desktop/Main/Screens/WelcomeScreen.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Screens.WelcomeScreen">
+             x:Class="DHT.Desktop.Main.Screens.WelcomeScreen"
+             x:DataType="screens:WelcomeScreenModel">
 
     <Design.DataContext>
         <screens:WelcomeScreenModel />

app/Desktop/Main/Screens/WelcomeScreenModel.cs

@@ -1,10 +1,13 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using DHT.Desktop.Common;
 using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Dialogs.Progress;
 using DHT.Server.Database;
+using DHT.Server.Database.Sqlite;
 using DHT.Utils.Models;
 
 namespace DHT.Desktop.Main.Screens;
@@ -39,14 +42,71 @@ sealed class WelcomeScreenModel : BaseModel, IDisposable {
 		}
 
 		dbFilePath = path;
-		Db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, window, CheckCanUpgradeDatabase);
+		Db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, window, new SchemaUpgradeCallbacks(window));
 
 		OnPropertyChanged(nameof(Db));
 		OnPropertyChanged(nameof(HasDatabase));
 	}
 
-	private async Task<bool> CheckCanUpgradeDatabase() {
+	private sealed class SchemaUpgradeCallbacks : ISchemaUpgradeCallbacks {
-		return DialogResult.YesNo.Yes == await DatabaseGui.ShowCanUpgradeDatabaseDialog(window);
+		private readonly Window window;
+		
+		public SchemaUpgradeCallbacks(Window window) {
+			this.window = window;
+		}
+
+		public async Task<bool> CanUpgrade() {
+			return DialogResult.YesNo.Yes == await DatabaseGui.ShowCanUpgradeDatabaseDialog(window);
+		}
+
+		public async Task Start(int versionSteps, Func<ISchemaUpgradeCallbacks.IProgressReporter, Task> doUpgrade) {
+			async Task StartUpgrade(IReadOnlyList<IProgressCallback> callbacks) {
+				var reporter = new ProgressReporter(versionSteps, callbacks);
+				await reporter.NextVersion();
+				await Task.Delay(TimeSpan.FromMilliseconds(800));
+				await doUpgrade(reporter);
+				await Task.Delay(TimeSpan.FromMilliseconds(600));
+			}
+
+			await new ProgressDialog {
+				DataContext = new ProgressDialogModel(StartUpgrade, progressItems: 3) {
+					Title = "Upgrading Database"
+				}
+			}.ShowProgressDialog(window);
+		}
+
+		private sealed class ProgressReporter : ISchemaUpgradeCallbacks.IProgressReporter {
+			private readonly IReadOnlyList<IProgressCallback> callbacks;
+			
+			private readonly int versionSteps;
+			private int versionProgress = 0;
+			
+			public ProgressReporter(int versionSteps, IReadOnlyList<IProgressCallback> callbacks) {
+				this.callbacks = callbacks;
+				this.versionSteps = versionSteps;
+			}
+
+			public async Task NextVersion() {
+				await callbacks[0].Update("Upgrading schema version...", versionProgress++, versionSteps);
+				await HideChildren(0);
+			}
+
+			public async Task MainWork(string message, int finishedItems, int totalItems) {
+				await callbacks[1].Update(message, finishedItems, totalItems);
+				await HideChildren(1);
+			}
+
+			public async Task SubWork(string message, int finishedItems, int totalItems) {
+				await callbacks[2].Update(message, finishedItems, totalItems);
+				await HideChildren(2);
+			}
+
+			private async Task HideChildren(int parentIndex) {
+				for (int i = parentIndex + 1; i < callbacks.Count; i++) {
+					await callbacks[i].Hide();
+				}
+			}
+		}
 	}
 
 	public void CloseDatabase() {

app/Desktop/Resources/tracker-loader.js

@@ -0,0 +1 @@
+fetch("{url}").then(r => r.ok ? (r.headers.get("X-DHT") === "1" ? r.text() : Promise.reject("Invalid response")) : Promise.reject(r.status + " " + r.statusText)).then(s => eval(s)).catch(e => alert("Could not load tracking script:\n" + e));

app/Directory.Build.props

@@ -0,0 +1,49 @@
+<Project>
+  
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <LangVersion>11</LangVersion>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  
+  <PropertyGroup>
+    <Authors>chylex</Authors>
+    <Company>DiscordHistoryTracker</Company>
+    <Product>DiscordHistoryTracker</Product>
+  </PropertyGroup>
+  
+  <PropertyGroup>
+    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
+    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
+    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
+  </PropertyGroup>
+  
+  <PropertyGroup>
+    <SuppressTrimAnalysisWarnings>false</SuppressTrimAnalysisWarnings>
+    <PublishTrimmed>true</PublishTrimmed>
+    <TrimMode>partial</TrimMode>
+    <EnableUnsafeBinaryFormatterSerialization>false</EnableUnsafeBinaryFormatterSerialization>
+    <EnableUnsafeUTF7Encoding>false</EnableUnsafeUTF7Encoding>
+    <EventSourceSupport>false</EventSourceSupport>
+    <HttpActivityPropagationSupport>false</HttpActivityPropagationSupport>
+    <JsonSerializerIsReflectionEnabledByDefault>false</JsonSerializerIsReflectionEnabledByDefault>
+  </PropertyGroup>
+  
+  <PropertyGroup>
+    <PublishSingleFile>true</PublishSingleFile>
+    <PublishReadyToRun>false</PublishReadyToRun>
+    <EnableCompressionInSingleFile>true</EnableCompressionInSingleFile>
+    <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>
+  </PropertyGroup>
+  
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <DebugSymbols>false</DebugSymbols>
+    <DebugType>none</DebugType>
+  </PropertyGroup>
+  
+  <PropertyGroup>
+    <UseArtifactsOutput>true</UseArtifactsOutput>
+    <ArtifactsPath>$(MSBuildThisFileDirectory).artifacts</ArtifactsPath>
+  </PropertyGroup>
+  
+</Project>

app/Directory.build.props

@@ -1,8 +0,0 @@
-<Project>
-  
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <LangVersion>11</LangVersion>
-  </PropertyGroup>
-  
-</Project>

app/Resources/Tracker/bootstrap.js

@@ -64,9 +64,11 @@
 			let action = null;
 			
 			if (!DISCORD.hasMoreMessages()) {
+				console.debug("[DHT] Reached first message.");
 				action = SETTINGS.afterFirstMsg;
 			}
 			if (isNoAction(action) && !anyNewMessages) {
+				console.debug("[DHT] No new messages.");
 				action = SETTINGS.afterSavedMsg;
 			}
 			
@@ -121,7 +123,7 @@
 				onTrackingContinued(false);
 			}
 			else {
-				const anyNewMessages = await STATE.addDiscordMessages(info.id, messages);
+				const anyNewMessages = await STATE.addDiscordMessages(messages);
 				onTrackingContinued(anyNewMessages);
 			}
 		} catch (e) {
@@ -156,3 +158,4 @@
 		GUI.showSettings();
 	}
 })();
+/*[DEBUGGER]*/

app/Resources/Tracker/scripts/discord.js

@@ -1,5 +1,23 @@
 // noinspection JSUnresolvedVariable
+// noinspection LocalVariableNamingConventionJS
 class DISCORD {
+	
+	// https://discord.com/developers/docs/resources/channel#channel-object-channel-types
+	static CHANNEL_TYPE = {
+		DM: 1,
+		GROUP_DM: 3,
+		ANNOUNCEMENT_THREAD: 10,
+		PUBLIC_THREAD: 11,
+		PRIVATE_THREAD: 12
+	};
+	
+	// https://discord.com/developers/docs/resources/channel#message-object-message-types
+	static MESSAGE_TYPE = {
+		DEFAULT: 0,
+		REPLY: 19,
+		THREAD_STARTER: 21
+	};
+	
 	static getMessageOuterElement() {
 		return DOM.queryReactClass("messagesWrapper");
 	}
@@ -28,46 +46,11 @@ class DISCORD {
 	 * Calls the provided function with a list of messages whenever the currently loaded messages change.
 	 */
 	static setupMessageCallback(callback) {
-		let skipsLeft = 0;
-		let waitForCleanup = false;
 		const previousMessages = new Set();
 		
-		const timer = window.setInterval(() => {
+		const onMessageElementsChanged = function() {
-			if (skipsLeft > 0) {
+			const messages = DISCORD.getMessages();
-				--skipsLeft;
+			const hasChanged = messages.some(message => !previousMessages.has(message.id)) || !DISCORD.hasMoreMessages();
-				return;
-			}
-			
-			const view = this.getMessageOuterElement();
-			
-			if (!view) {
-				skipsLeft = 2;
-				return;
-			}
-			
-			const anyMessage = DOM.queryReactClass("message", this.getMessageOuterElement());
-			const messageCount = anyMessage ? anyMessage.parentElement.children.length : 0;
-			
-			if (messageCount > 300) {
-				if (waitForCleanup) {
-					return;
-				}
-				
-				skipsLeft = 3;
-				waitForCleanup = true;
-				
-				window.setTimeout(() => {
-					const view = this.getMessageScrollerElement();
-					// noinspection JSUnusedGlobalSymbols
-					view.scrollTop = view.scrollHeight / 2;
-				}, 1);
-			}
-			else {
-				waitForCleanup = false;
-			}
-			
-			const messages = this.getMessages();
-			const hasChanged = messages.some(message => !previousMessages.has(message.id)) || !this.hasMoreMessages();
 			
 			if (!hasChanged) {
 				return;
@@ -79,24 +62,74 @@ class DISCORD {
 			}
 			
 			callback(messages);
-		}, 200);
+		};
 		
-		window.DHT_ON_UNLOAD.push(() => window.clearInterval(timer));
+		let debounceTimer;
+		
+		/**
+		 * Do not trigger the callback too often due to autoscrolling.
+		 */
+		const onMessageElementsChangedLater = function() {
+			window.clearTimeout(debounceTimer);
+			debounceTimer = window.setTimeout(onMessageElementsChanged, 100);
+		};
+		
+		const observer = new MutationObserver(function () {
+			onMessageElementsChangedLater();
+		});
+		
+		let skipsLeft = 0;
+		let observedElement = null;
+		
+		const observerTimer = window.setInterval(() => {
+			if (skipsLeft > 0) {
+				--skipsLeft;
+				return;
+			}
+			
+			const view = this.getMessageOuterElement();
+			
+			if (!view) {
+				skipsLeft = 1;
+				return;
+			}
+			
+			if (observedElement !== null && observedElement.isConnected) {
+				return;
+			}
+			
+			observedElement = view.querySelector("[data-list-id='chat-messages']");
+			
+			if (observedElement) {
+				console.debug("[DHT] Observed message container.");
+				observer.observe(observedElement, { childList: true });
+				onMessageElementsChangedLater();
+			}
+		}, 400);
+		
+		window.DHT_ON_UNLOAD.push(() => {
+			observer.disconnect();
+			observedElement = null;
+			window.clearInterval(observerTimer);
+		});
 	}
 	
 	/**
-	 * Returns the property object of a message element.
+	 * Returns the message from a message element.
-	 * @returns { null | { message: DiscordMessage, channel: Object } }
+	 * @returns { null | DiscordMessage } }
 	 */
-	static getMessageElementProps(ele) {
+	static getMessageFromElement(ele) {
 		const props = DOM.getReactProps(ele);
 		
-		if (props.children && props.children.length) {
+		if (props && Array.isArray(props.children)) {
-			for (let i = 3; i < props.children.length; i++) {
+			for (const child of props.children) {
-				const childProps = props.children[i].props;
+				if (!(child instanceof Object)) {
+					continue;
+				}
 				
-				if (childProps && "message" in childProps && "channel" in childProps) {
+				const childProps = child.props;
-					return childProps;
+				if (childProps instanceof Object && "message" in childProps) {
+					return childProps.message;
 				}
 			}
 		}
@@ -113,10 +146,10 @@ class DISCORD {
 			
 			for (const ele of this.getMessageElements()) {
 				try {
-					const props = this.getMessageElementProps(ele);
+					const message = this.getMessageFromElement(ele);
 					
-					if (props != null) {
+					if (message != null) {
-						messages.push(props.message);
+						messages.push(message);
 					}
 				} catch (e) {
 					console.error("[DHT] Error extracing message data, skipping it.", e, ele, DOM.tryGetReactProps(ele));
@@ -137,7 +170,7 @@ class DISCORD {
 	 */
 	static getSelectedChannel() {
 		try {
-			let obj;
+			let obj = null;
 			
 			try {
 				for (const child of DOM.getReactProps(DOM.queryReactClass("chatContent")).children) {
@@ -148,15 +181,6 @@ class DISCORD {
 				}
 			} catch (e) {
 				console.error("[DHT] Error retrieving selected channel from 'chatContent' element.", e);
-				
-				for (const ele of this.getMessageElements()) {
-					const props = this.getMessageElementProps(ele);
-					
-					if (props != null) {
-						obj = props.channel;
-						break;
-					}
-				}
 			}
 			
 			if (!obj || typeof obj.id !== "string") {
@@ -185,8 +209,8 @@ class DISCORD {
 				
 				// https://discord.com/developers/docs/resources/channel#channel-object-channel-types
 				switch (obj.type) {
-					case 1: type = "DM"; break;
+					case DISCORD.CHANNEL_TYPE.DM: type = "DM"; break;
-					case 3: type = "GROUP"; break;
+					case DISCORD.CHANNEL_TYPE.GROUP_DM: type = "GROUP"; break;
 					default: return null;
 				}
 				
@@ -224,7 +248,7 @@ class DISCORD {
 					}
 				};
 				
-				if (obj.parent_id) {
+				if (obj.type === DISCORD.CHANNEL_TYPE.ANNOUNCEMENT_THREAD || obj.type === DISCORD.CHANNEL_TYPE.PUBLIC_THREAD || obj.type === DISCORD.CHANNEL_TYPE.PRIVATE_THREAD) {
 					channel["extra"]["parent"] = obj.parent_id;
 				}
 				else {

app/Resources/Tracker/scripts/gui.js

@@ -86,12 +86,12 @@ const GUI = (function() {
 <label><input id='dht-cfg-autoscroll' type='checkbox'> Autoscroll</label><br>
 <br>
 <label>After reaching the first message in channel...</label><br>
-${radio("afm", "nothing", "Do Nothing")}
+${radio("afm", "nothing", "Continue Tracking")}
 ${radio("afm", "pause", "Pause Tracking")}
 ${radio("afm", "switch", "Switch to Next Channel")}
 <br>
 <label>After reaching a previously saved message...</label><br>
-${radio("asm", "nothing", "Do Nothing")}
+${radio("asm", "nothing", "Continue Tracking")}
 ${radio("asm", "pause", "Pause Tracking")}
 ${radio("asm", "switch", "Switch to Next Channel")}
 <p id='dht-cfg-note'>It is recommended to disable link and image previews to avoid putting unnecessary strain on your browser.</p>`;

app/Resources/Tracker/scripts/state.js

@@ -174,12 +174,10 @@ const STATE = (function() {
 		},
 		
 		/**
-		 * @param {String} channelId
 		 * @param {DiscordMessage[]} discordMessageArray
 		 */
-		async addDiscordMessages(channelId, discordMessageArray) {
+		async addDiscordMessages(discordMessageArray) {
-			// https://discord.com/developers/docs/resources/channel#message-object-message-types
+			discordMessageArray = discordMessageArray.filter(msg => (msg.type === DISCORD.MESSAGE_TYPE.DEFAULT || msg.type === DISCORD.MESSAGE_TYPE.REPLY || msg.type === DISCORD.MESSAGE_TYPE.THREAD_STARTER) && msg.state === "SENT");
-			discordMessageArray = discordMessageArray.filter(msg => (msg.type === 0 || msg.type === 19 || msg.type === 21) && msg.state === "SENT");
 			
 			if (discordMessageArray.length === 0) {
 				return false;

app/Resources/Viewer/scripts/discord.js

@@ -1,7 +1,8 @@
 const DISCORD = (function() {
 	const regex = {
 		formatBold: /\*\*([\s\S]+?)\*\*(?!\*)/g,
-		formatItalic: /(.)?([_*])([\s\S]+?)\2(?!\2)/g,
+		formatItalic1: /\*([\s\S]+?)\*(?!\*)/g,
+		formatItalic2: /_([\s\S]+?)_(?!_)\b/g,
 		formatUnderline: /__([\s\S]+?)__(?!_)/g,
 		formatStrike: /~~([\s\S]+?)~~(?!~)/g,
 		formatCodeInline: /(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/g,
@@ -48,7 +49,8 @@ const DISCORD = (function() {
 				.replace(regex.specialEscapedDouble, full => full.replace(/\\/g, "").replace(/(.)/g, escapeHtmlMatch))
 				.replace(regex.formatBold, "<b>$1</b>")
 				.replace(regex.formatUnderline, "<u>$1</u>")
-				.replace(regex.formatItalic, (full, pre, char, match) => pre === "\\" ? full : (pre || "") + "<i>" + match + "</i>")
+				.replace(regex.formatItalic1, "<i>$1</i>")
+				.replace(regex.formatItalic2, "<i>$1</i>")
 				.replace(regex.formatStrike, "<s>$1</s>");
 		}
 		

app/Resources/minify.py

@@ -1,27 +0,0 @@
-#!/usr/bin/env python3
-
-import glob
-import os
-import shutil
-import sys
-
-if os.name == "nt":
-    uglifyjs = os.path.abspath("../../lib/uglifyjs.cmd")
-else:
-    uglifyjs = "uglifyjs"
-
-if shutil.which(uglifyjs) is None:
-    print("Cannot find executable: {0}".format(uglifyjs))
-    sys.exit(1)
-
-input_dir = os.path.abspath("./Tracker/scripts")
-output_dir = os.path.abspath("../Desktop/bin/.res/scripts")
-
-os.makedirs(output_dir, exist_ok=True)
-
-for file in glob.glob(input_dir + "/*.js"):
-    name = os.path.basename(file)
-    print("Minifying {0}...".format(name))
-    os.system("{0} {1} -o {2}/{3}".format(uglifyjs, file, output_dir, name))
-
-print("Done!")

app/Server/Data/Attachment.cs

@@ -4,7 +4,8 @@ public readonly struct Attachment {
 	public ulong Id { get; internal init; }
 	public string Name { get; internal init; }
 	public string? Type { get; internal init; }
-	public string Url { get; internal init; }
+	public string NormalizedUrl { get; internal init; }
+	public string DownloadUrl { get; internal init; }
 	public ulong Size { get; internal init; }
 	public int? Width { get; internal init; }
 	public int? Height { get; internal init; }

app/Server/Data/Download.cs

@@ -1,30 +1,33 @@
 using System;
 using System.Net;
+using DHT.Server.Download;
 
 namespace DHT.Server.Data;
 
 public readonly struct Download {
-	internal static Download NewSuccess(string url, byte[] data) {
+	internal static Download NewSuccess(DownloadItem item, byte[] data) {
-		return new Download(url, DownloadStatus.Success, (ulong) Math.Max(data.LongLength, 0), data);
+		return new Download(item.NormalizedUrl, item.DownloadUrl, DownloadStatus.Success, (ulong) Math.Max(data.LongLength, 0), data);
 	}
 
-	internal static Download NewFailure(string url, HttpStatusCode? statusCode, ulong size) {
+	internal static Download NewFailure(DownloadItem item, HttpStatusCode? statusCode, ulong size) {
-		return new Download(url, statusCode.HasValue ? (DownloadStatus) (int) statusCode : DownloadStatus.GenericError, size);
+		return new Download(item.NormalizedUrl, item.DownloadUrl, statusCode.HasValue ? (DownloadStatus) (int) statusCode : DownloadStatus.GenericError, size);
 	}
 
-	public string Url { get; }
+	public string NormalizedUrl { get; }
+	public string DownloadUrl { get; }
 	public DownloadStatus Status { get; }
 	public ulong Size { get; }
 	public byte[]? Data { get; }
 
-	internal Download(string url, DownloadStatus status, ulong size, byte[]? data = null) {
+	internal Download(string normalizedUrl, string downloadUrl, DownloadStatus status, ulong size, byte[]? data = null) {
-		Url = url;
+		NormalizedUrl = normalizedUrl;
+		DownloadUrl = downloadUrl;
 		Status = status;
 		Size = size;
 		Data = data;
 	}
 
 	internal Download WithData(byte[] data) {
-		return new Download(Url, Status, Size, data);
+		return new Download(NormalizedUrl, DownloadUrl, Status, Size, data);
 	}
 }

app/Server/Database/Export/Snowflake.cs

@@ -0,0 +1,3 @@
+namespace DHT.Server.Database.Export; 
+
+readonly record struct Snowflake(ulong Id);

app/Server/Database/Export/SnowflakeJsonSerializer.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Export;
+
+sealed class SnowflakeJsonSerializer : JsonConverter<Snowflake> {
+	public override Snowflake Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
+		return new Snowflake(ulong.Parse(reader.GetString()!));
+	}
+
+	public override void Write(Utf8JsonWriter writer, Snowflake value, JsonSerializerOptions options) {
+		writer.WriteStringValue(value.Id.ToString());
+	}
+
+	public override Snowflake ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
+		return new Snowflake(ulong.Parse(reader.GetString()!));
+	}
+
+	public override void WriteAsPropertyName(Utf8JsonWriter writer, Snowflake value, JsonSerializerOptions options) {
+		writer.WritePropertyName(value.Id.ToString());
+	}
+}

app/Server/Database/Export/Strategy/LiveViewerExportStrategy.cs

@@ -13,6 +13,6 @@ public sealed class LiveViewerExportStrategy : IViewerExportStrategy {
 	}
 
 	public string GetAttachmentUrl(Attachment attachment) {
-		return "http://127.0.0.1:" + safePort + "/get-attachment/" + WebUtility.UrlEncode(attachment.Url) + "?token=" + safeToken;
+		return "http://127.0.0.1:" + safePort + "/get-attachment/" + WebUtility.UrlEncode(attachment.NormalizedUrl) + "?token=" + safeToken;
 	}
 }

app/Server/Database/Export/Strategy/StandaloneViewerExportStrategy.cs

@@ -8,6 +8,11 @@ public sealed class StandaloneViewerExportStrategy : IViewerExportStrategy {
 	private StandaloneViewerExportStrategy() {}
 
 	public string GetAttachmentUrl(Attachment attachment) {
-		return attachment.Url;
+		// The normalized URL will not load files from Discord CDN once the time limit is enforced.
+		
+		// The downloaded URL would work, but only for a limited time, so it is better for the links to not work
+		// rather than give users a false sense of security.
+		
+		return attachment.NormalizedUrl;
 	}
 }

app/Server/Database/Export/ViewerJson.cs

@@ -0,0 +1,93 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Export;
+
+sealed class ViewerJson {
+	public required JsonMeta Meta { get; init; }
+	public required Dictionary<Snowflake, Dictionary<Snowflake, JsonMessage>> Data { get; init; }
+
+	public sealed class JsonMeta {
+		public required Dictionary<Snowflake, JsonUser> Users { get; init; }
+		public required List<Snowflake> Userindex { get; init; }
+		public required List<JsonServer> Servers { get; init; }
+		public required Dictionary<Snowflake, JsonChannel> Channels { get; init; }
+	}
+	
+	public sealed class JsonUser {
+		public required string Name { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? Avatar { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? Tag { get; init; }
+	}
+
+	public sealed class JsonServer {
+		public required string Name { get; init; }
+		public required string Type { get; init; }
+	}
+
+	public sealed class JsonChannel {
+		public required int Server { get; init; }
+		public required string Name { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? Parent { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public int? Position { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? Topic { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public bool? Nsfw { get; init; }
+	}
+
+	public sealed class JsonMessage {
+		public required int U { get; init; }
+		public required long T { get; init; }
+
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? M { get; init; }
+
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public long? Te { get; init; }
+
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? R { get; init; }
+
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public JsonMessageAttachment[]? A { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string[]? E { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public JsonMessageReaction[]? Re { get; init; }
+	}
+
+	public sealed class JsonMessageAttachment {
+		public required string Url { get; init; }
+		public required string Name { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public int? Width { get; set; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public int? Height { get; set; }
+	}
+
+	public sealed class JsonMessageReaction {
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? Id { get; init; }
+		
+		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+		public string? N { get; init; }
+
+		public required bool A { get; init; }
+		public required int C { get; init; }
+	}
+}

app/Server/Database/Export/ViewerJsonContext.cs

@@ -0,0 +1,11 @@
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Export;
+
+[JsonSourceGenerationOptions(
+	Converters = new [] { typeof(SnowflakeJsonSerializer) },
+	PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase,
+	GenerationMode = JsonSourceGenerationMode.Default
+)]
+[JsonSerializable(typeof(ViewerJson))]
+sealed partial class ViewerJsonContext : JsonSerializerContext {}

app/Server/Database/Export/ViewerJsonExport.cs

@@ -42,26 +42,28 @@ public static class ViewerJsonExport {
 
 		perf.Step("Collect database data");
 
-		var value = new {
+		var value = new ViewerJson {
-			meta = new { users, userindex, servers, channels },
+			Meta = new ViewerJson.JsonMeta {
-			data = GenerateMessageList(includedMessages, userIndices, strategy),
+				Users = users,
+				Userindex = userindex,
+				Servers = servers,
+				Channels = channels
+			},
+			Data = GenerateMessageList(includedMessages, userIndices, strategy)
 		};
 
 		perf.Step("Generate value object");
 
-		var opts = new JsonSerializerOptions();
+		await JsonSerializer.SerializeAsync(stream, value, ViewerJsonContext.Default.ViewerJson);
-		opts.Converters.Add(new ViewerJsonSnowflakeSerializer());
-
-		await JsonSerializer.SerializeAsync(stream, value, opts);
 
 		perf.Step("Serialize to JSON");
 		perf.End();
 	}
 
-	private static Dictionary<string, object> GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, out List<string> userindex, out Dictionary<ulong, object> userIndices) {
+	private static Dictionary<Snowflake, ViewerJson.JsonUser> GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, out List<Snowflake> userindex, out Dictionary<ulong, int> userIndices) {
-		var users = new Dictionary<string, object>();
+		var users = new Dictionary<Snowflake, ViewerJson.JsonUser>();
-		userindex = new List<string>();
+		userindex = new List<Snowflake>();
-		userIndices = new Dictionary<ulong, object>();
+		userIndices = new Dictionary<ulong, int>();
 
 		foreach (var user in db.GetAllUsers()) {
 			var id = user.Id;
@@ -69,30 +71,23 @@ public static class ViewerJsonExport {
 				continue;
 			}
 
-			var obj = new Dictionary<string, object> {
+			var idSnowflake = new Snowflake(id);
-				["name"] = user.Name
-			};
-
-			if (user.AvatarUrl != null) {
-				obj["avatar"] = user.AvatarUrl;
-			}
-
-			if (user.Discriminator != null) {
-				obj["tag"] = user.Discriminator;
-			}
-
-			var idStr = id.ToString();
 			userIndices[id] = users.Count;
-			userindex.Add(idStr);
+			userindex.Add(idSnowflake);
-			users[idStr] = obj;
+			
+			users[idSnowflake] = new ViewerJson.JsonUser {
+				Name = user.Name,
+				Avatar = user.AvatarUrl,
+				Tag = user.Discriminator
+			};
 		}
 
 		return users;
 	}
 
-	private static List<object> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, out Dictionary<ulong, object> serverIndices) {
+	private static List<ViewerJson.JsonServer> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, out Dictionary<ulong, int> serverIndices) {
-		var servers = new List<object>();
+		var servers = new List<ViewerJson.JsonServer>();
-		serverIndices = new Dictionary<ulong, object>();
+		serverIndices = new Dictionary<ulong, int>();
 
 		foreach (var server in db.GetAllServers()) {
 			var id = server.Id;
@@ -101,113 +96,78 @@ public static class ViewerJsonExport {
 			}
 
 			serverIndices[id] = servers.Count;
-			servers.Add(new Dictionary<string, object> {
+			
-				["name"] = server.Name,
+			servers.Add(new ViewerJson.JsonServer {
-				["type"] = ServerTypes.ToJsonViewerString(server.Type),
+				Name = server.Name,
+				Type = ServerTypes.ToJsonViewerString(server.Type)
 			});
 		}
 
 		return servers;
 	}
 
-	private static Dictionary<string, object> GenerateChannelList(List<Channel> includedChannels, Dictionary<ulong, object> serverIndices) {
+	private static Dictionary<Snowflake, ViewerJson.JsonChannel> GenerateChannelList(List<Channel> includedChannels, Dictionary<ulong, int> serverIndices) {
-		var channels = new Dictionary<string, object>();
+		var channels = new Dictionary<Snowflake, ViewerJson.JsonChannel>();
 
 		foreach (var channel in includedChannels) {
-			var obj = new Dictionary<string, object> {
+			var channelIdSnowflake = new Snowflake(channel.Id);
-				["server"] = serverIndices[channel.Server],
+			
-				["name"] = channel.Name,
+			channels[channelIdSnowflake] = new ViewerJson.JsonChannel {
+				Server = serverIndices[channel.Server],
+				Name = channel.Name,
+				Parent = channel.ParentId?.ToString(),
+				Position = channel.Position,
+				Topic = channel.Topic,
+				Nsfw = channel.Nsfw
 			};
-
-			if (channel.ParentId != null) {
-				obj["parent"] = channel.ParentId;
-			}
-
-			if (channel.Position != null) {
-				obj["position"] = channel.Position;
-			}
-
-			if (channel.Topic != null) {
-				obj["topic"] = channel.Topic;
-			}
-
-			if (channel.Nsfw != null) {
-				obj["nsfw"] = channel.Nsfw;
-			}
-
-			channels[channel.Id.ToString()] = obj;
 		}
 
 		return channels;
 	}
 
-	private static Dictionary<string, Dictionary<string, object>> GenerateMessageList( List<Message> includedMessages, Dictionary<ulong, object> userIndices, IViewerExportStrategy strategy) {
+	private static Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>> GenerateMessageList(List<Message> includedMessages, Dictionary<ulong, int> userIndices, IViewerExportStrategy strategy) {
-		var data = new Dictionary<string, Dictionary<string, object>>();
+		var data = new Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>>();
 
 		foreach (var grouping in includedMessages.GroupBy(static message => message.Channel)) {
-			var channel = grouping.Key.ToString();
+			var channelIdSnowflake = new Snowflake(grouping.Key);
-			var channelData = new Dictionary<string, object>();
+			var channelData = new Dictionary<Snowflake, ViewerJson.JsonMessage>();
 
 			foreach (var message in grouping) {
-				var obj = new Dictionary<string, object> {
+				var messageIdSnowflake = new Snowflake(message.Id);
-					["u"] = userIndices[message.Sender],
+				
-					["t"] = message.Timestamp,
+				channelData[messageIdSnowflake] = new ViewerJson.JsonMessage {
-				};
+					U = userIndices[message.Sender],
-
+					T = message.Timestamp,
-				if (!string.IsNullOrEmpty(message.Text)) {
+					M = string.IsNullOrEmpty(message.Text) ? null : message.Text,
-					obj["m"] = message.Text;
+					Te = message.EditTimestamp,
-				}
+					R = message.RepliedToId?.ToString(),
-
+					
-				if (message.EditTimestamp != null) {
+					A = message.Attachments.IsEmpty ? null : message.Attachments.Select(attachment => {
-					obj["te"] = message.EditTimestamp;
+						var a = new ViewerJson.JsonMessageAttachment {
-				}
+							Url = strategy.GetAttachmentUrl(attachment),
-
+							Name = Uri.TryCreate(attachment.NormalizedUrl, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.NormalizedUrl
-				if (message.RepliedToId != null) {
-					obj["r"] = message.RepliedToId.Value;
-				}
-
-				if (!message.Attachments.IsEmpty) {
-					obj["a"] = message.Attachments.Select(attachment => {
-						var a = new Dictionary<string, object> {
-							{ "url", strategy.GetAttachmentUrl(attachment) },
-							{ "name", Uri.TryCreate(attachment.Url, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.Url },
 						};
 
 						if (attachment is { Width: not null, Height: not null }) {
-							a["width"] = attachment.Width;
+							a.Width = attachment.Width;
-							a["height"] = attachment.Height;
+							a.Height = attachment.Height;
 						}
 
 						return a;
-					}).ToArray();
+					}).ToArray(),
-				}
+					
-
+					E = message.Embeds.IsEmpty ? null : message.Embeds.Select(static embed => embed.Json).ToArray(),
-				if (!message.Embeds.IsEmpty) {
+					
-					obj["e"] = message.Embeds.Select(static embed => embed.Json).ToArray();
+					Re = message.Reactions.IsEmpty ? null : message.Reactions.Select(static reaction => new ViewerJson.JsonMessageReaction {
-				}
+						Id = reaction.EmojiId?.ToString(),
-
+						N = reaction.EmojiName,
-				if (!message.Reactions.IsEmpty) {
+						A = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated),
-					obj["re"] = message.Reactions.Select(static reaction => {
+						C = reaction.Count
-						var r = new Dictionary<string, object>();
+					}).ToArray()
-
+				};
-						if (reaction.EmojiId != null) {
-							r["id"] = reaction.EmojiId.Value;
-						}
-
-						if (reaction.EmojiName != null) {
-							r["n"] = reaction.EmojiName;
-						}
-
-						r["a"] = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated);
-						r["c"] = reaction.Count;
-						return r;
-					}).ToArray();
-				}
-
-				channelData[message.Id.ToString()] = obj;
 			}
 
-			data[channel] = channelData;
+			data[channelIdSnowflake] = channelData;
 		}
 
 		return data;

app/Server/Database/Export/ViewerJsonSnowflakeSerializer.cs

@@ -1,15 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace DHT.Server.Database.Export;
-
-sealed class ViewerJsonSnowflakeSerializer : JsonConverter<ulong> {
-	public override ulong Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-		return ulong.Parse(reader.GetString()!);
-	}
-
-	public override void Write(Utf8JsonWriter writer, ulong value, JsonSerializerOptions options) {
-		writer.WriteStringValue(value.ToString());
-	}
-}

app/Server/Database/Import/DiscordEmbedLegacyJson.cs

@@ -0,0 +1,23 @@
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Import; 
+
+sealed class DiscordEmbedLegacyJson {
+	public required string Url { get; init; }
+	public required string Type { get; init; }
+	
+	public bool DhtLegacy { get; } = true;
+
+	[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+	public string? Title { get; init; }
+	
+	[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+	public string? Description { get; init; }
+
+	[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+	public ImageJson? Image { get; init; }
+
+	public sealed class ImageJson {
+		public required string Url { get; init; }
+	}
+}

app/Server/Database/Import/DiscordEmbedLegacyJsonContext.cs

@@ -0,0 +1,7 @@
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Import;
+
+[JsonSourceGenerationOptions(PropertyNamingPolicy = JsonKnownNamingPolicy.SnakeCaseLower, GenerationMode = JsonSourceGenerationMode.Default)]
+[JsonSerializable(typeof(DiscordEmbedLegacyJson))]
+sealed partial class DiscordEmbedLegacyJsonContext : JsonSerializerContext {}

app/Server/Database/Import/LegacyArchiveImport.cs

@@ -21,7 +21,7 @@ public static class LegacyArchiveImport {
 
 	public static async Task<bool> Read(Stream stream, IDatabaseFile db, FakeSnowflake fakeSnowflake, Func<Data.Server[], Task<Dictionary<Data.Server, ulong>?>> askForServerIds) {
 		var perf = Log.Start();
-		var root = await JsonSerializer.DeserializeAsync<JsonElement>(stream);
+		var root = await JsonSerializer.DeserializeAsync(stream, JsonElementContext.Default.JsonElement);
 
 		try {
 			var meta = root.RequireObject("meta");
@@ -197,7 +197,8 @@ public static class LegacyArchiveImport {
 				Id = fakeSnowflake.Next(),
 				Name = name,
 				Type = type,
-				Url = url,
+				NormalizedUrl = url,
+				DownloadUrl = url,
 				Size = 0, // unknown size
 			};
 		}).DistinctByKeyStable(static attachment => {
@@ -211,30 +212,17 @@ public static class LegacyArchiveImport {
 		return embedsArray.Where(static embedObj => embedObj.HasKey("url")).Select(embedObj => {
 			string url = embedObj.RequireString("url", path);
 			string type = embedObj.RequireString("type", path);
-
+			
-			var embedJson = new Dictionary<string, object> {
+			var embed = new DiscordEmbedLegacyJson {
-				{ "url", url },
+				Url = url,
-				{ "type", type },
+				Type = type,
-				{ "dht_legacy", true },
+				Title = type == "rich" && embedObj.HasKey("t") ? embedObj.RequireString("t", path) : null,
+				Description = type == "rich" && embedObj.HasKey("d") ? embedObj.RequireString("d", path) : null,
+				Image = type == "image" ? new DiscordEmbedLegacyJson.ImageJson { Url = url } : null
 			};
 
-			if (type == "image") {
-				embedJson["image"] = new Dictionary<string, string> {
-					{ "url", url }
-				};
-			}
-			else if (type == "rich") {
-				if (embedObj.HasKey("t")) {
-					embedJson["title"] = embedObj.RequireString("t", path);
-				}
-
-				if (embedObj.HasKey("d")) {
-					embedJson["description"] = embedObj.RequireString("d", path);
-				}
-			}
-
 			return new Embed {
-				Json = JsonSerializer.Serialize(embedJson)
+				Json = JsonSerializer.Serialize(embed, DiscordEmbedLegacyJsonContext.Default.DiscordEmbedLegacyJson)
 			};
 		});
 	}

app/Server/Database/Sqlite/ISchemaUpgradeCallbacks.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Threading.Tasks;
+
+namespace DHT.Server.Database.Sqlite; 
+
+public interface ISchemaUpgradeCallbacks {
+	Task<bool> CanUpgrade();
+	Task Start(int versionSteps, Func<IProgressReporter, Task> doUpgrade);
+
+	public interface IProgressReporter {
+		Task NextVersion();
+		Task MainWork(string message, int finishedItems, int totalItems);
+		Task SubWork(string message, int finishedItems, int totalItems);
+	}
+}

app/Server/Database/Sqlite/Schema.cs

@@ -1,13 +1,15 @@
-using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using DHT.Server.Database.Exceptions;
 using DHT.Server.Database.Sqlite.Utils;
+using DHT.Server.Download;
 using DHT.Utils.Logging;
+using Microsoft.Data.Sqlite;
 
 namespace DHT.Server.Database.Sqlite;
 
 sealed class Schema {
-	internal const int Version = 5;
+	internal const int Version = 6;
 
 	private static readonly Log Log = Log.ForType<Schema>();
 
@@ -17,12 +19,8 @@ sealed class Schema {
 		this.conn = conn;
 	}
 
-	private void Execute(string sql) {
+	public async Task<bool> Setup(ISchemaUpgradeCallbacks callbacks) {
-		conn.Command(sql).ExecuteNonQuery();
+		conn.Execute(@"CREATE TABLE IF NOT EXISTS metadata (key TEXT PRIMARY KEY, value TEXT)");
-	}
-
-	public async Task<bool> Setup(Func<Task<bool>> checkCanUpgradeSchemas) {
-		Execute(@"CREATE TABLE IF NOT EXISTS metadata (key TEXT PRIMARY KEY, value TEXT)");
 
 		var dbVersionStr = conn.SelectScalar("SELECT value FROM metadata WHERE key = 'version'");
 		if (dbVersionStr == null) {
@@ -35,137 +33,323 @@ sealed class Schema {
 			throw new DatabaseTooNewException(dbVersion);
 		}
 		else if (dbVersion < Version) {
-			var proceed = await checkCanUpgradeSchemas();
+			var proceed = await callbacks.CanUpgrade();
 			if (!proceed) {
 				return false;
 			}
 
-			UpgradeSchemas(dbVersion);
+			await callbacks.Start(Version - dbVersion, async reporter => await UpgradeSchemas(dbVersion, reporter));
 		}
 
 		return true;
 	}
 
 	private void InitializeSchemas() {
-		Execute(@"CREATE TABLE users (
+		conn.Execute("""
-			          id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE users (
-			          name TEXT NOT NULL,
+		             	id            INTEGER PRIMARY KEY NOT NULL,
-			          avatar_url TEXT,
+		             	name          TEXT NOT NULL,
-			          discriminator TEXT)");
+		             	avatar_url    TEXT,
+		             	discriminator TEXT
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE servers (
+		conn.Execute("""
-			          id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE servers (
-			          name TEXT NOT NULL,
+		             	id   INTEGER PRIMARY KEY NOT NULL,
-			          type TEXT NOT NULL)");
+		             	name TEXT NOT NULL,
+		             	type TEXT NOT NULL
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE channels (
+		conn.Execute("""
-			          id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE channels (
-			          server INTEGER NOT NULL,
+		             	id        INTEGER PRIMARY KEY NOT NULL,
-			          name TEXT NOT NULL,
+		             	server    INTEGER NOT NULL,
-			          parent_id INTEGER,
+		             	name      TEXT NOT NULL,
-			          position INTEGER,
+		             	parent_id INTEGER,
-			          topic TEXT,
+		             	position  INTEGER,
-			          nsfw INTEGER)");
+		             	topic     TEXT,
+		             	nsfw      INTEGER
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE messages (
+		conn.Execute("""
-			        message_id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE messages (
-			        sender_id INTEGER NOT NULL,
+		             	message_id INTEGER PRIMARY KEY NOT NULL,
-			        channel_id INTEGER NOT NULL,
+		             	sender_id  INTEGER NOT NULL,
-			        text TEXT NOT NULL,
+		             	channel_id INTEGER NOT NULL,
-			        timestamp INTEGER NOT NULL)");
+		             	text       TEXT NOT NULL,
+		             	timestamp  INTEGER NOT NULL
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE attachments (
+		conn.Execute("""
-			        message_id INTEGER NOT NULL,
+		             CREATE TABLE attachments (
-			        attachment_id INTEGER NOT NULL PRIMARY KEY NOT NULL,
+		             	message_id     INTEGER NOT NULL,
-			        name TEXT NOT NULL,
+		             	attachment_id  INTEGER NOT NULL PRIMARY KEY NOT NULL,
-			        type TEXT,
+		             	name           TEXT NOT NULL,
-			        url TEXT NOT NULL,
+		             	type           TEXT,
-			        size INTEGER NOT NULL,
+		             	normalized_url TEXT NOT NULL,
-			        width INTEGER,
+		             	download_url   TEXT,
-			        height INTEGER)");
+		             	size           INTEGER NOT NULL,
+		             	width          INTEGER,
+		             	height         INTEGER
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE embeds (
+		conn.Execute("""
-			        message_id INTEGER NOT NULL,
+		             CREATE TABLE embeds (
-			        json TEXT NOT NULL)");
+		             	message_id INTEGER NOT NULL,
+		             	json       TEXT NOT NULL
+		             )
+		             """);
 
-		Execute(@"CREATE TABLE reactions (
+		conn.Execute("""
-					message_id INTEGER NOT NULL,
+		             CREATE TABLE downloads (
-					emoji_id INTEGER,
+		             	normalized_url TEXT NOT NULL PRIMARY KEY,
-					emoji_name TEXT,
+		             	download_url   TEXT,
-					emoji_flags INTEGER NOT NULL,
+		             	status         INTEGER NOT NULL,
-					count INTEGER NOT NULL)");
+		             	size           INTEGER NOT NULL,
+		             	blob           BLOB
+		             )
+		             """);
+		
+		conn.Execute("""
+		             CREATE TABLE reactions (
+		             	message_id  INTEGER NOT NULL,
+		             	emoji_id    INTEGER,
+		             	emoji_name  TEXT,
+		             	emoji_flags INTEGER NOT NULL,
+		             	count       INTEGER NOT NULL
+		             )
+		             """);
 
 		CreateMessageEditTimestampTable();
 		CreateMessageRepliedToTable();
-		CreateDownloadsTable();
 
-		Execute("CREATE INDEX attachments_message_ix ON attachments(message_id)");
+		conn.Execute("CREATE INDEX attachments_message_ix ON attachments(message_id)");
-		Execute("CREATE INDEX embeds_message_ix ON embeds(message_id)");
+		conn.Execute("CREATE INDEX embeds_message_ix ON embeds(message_id)");
-		Execute("CREATE INDEX reactions_message_ix ON reactions(message_id)");
+		conn.Execute("CREATE INDEX reactions_message_ix ON reactions(message_id)");
 
-		Execute("INSERT INTO metadata (key, value) VALUES ('version', " + Version + ")");
+		conn.Execute("INSERT INTO metadata (key, value) VALUES ('version', " + Version + ")");
 	}
 
 	private void CreateMessageEditTimestampTable() {
-		Execute(@"CREATE TABLE edit_timestamps (
+		conn.Execute("""
-			        message_id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE edit_timestamps (
-			        edit_timestamp INTEGER NOT NULL)");
+		             	message_id     INTEGER PRIMARY KEY NOT NULL,
+		             	edit_timestamp INTEGER NOT NULL
+		             )
+		             """);
 	}
 
 	private void CreateMessageRepliedToTable() {
-		Execute(@"CREATE TABLE replied_to (
+		conn.Execute("""
-			        message_id INTEGER PRIMARY KEY NOT NULL,
+		             CREATE TABLE replied_to (
-			        replied_to_id INTEGER NOT NULL)");
+		             	message_id    INTEGER PRIMARY KEY NOT NULL,
+		             	replied_to_id INTEGER NOT NULL
+		             )
+		             """);
 	}
 
-	private void CreateDownloadsTable() {
+	private async Task NormalizeAttachmentUrls(ISchemaUpgradeCallbacks.IProgressReporter reporter) {
-		Execute(@"CREATE TABLE downloads (
+		await reporter.SubWork("Preparing attachments...", 0, 0);
-                      url TEXT NOT NULL PRIMARY KEY,
+		
-                      status INTEGER NOT NULL,
+		var normalizedUrls = new Dictionary<long, string>();
-                      size INTEGER NOT NULL,
+
-                      blob BLOB)");
+		await using (var selectCmd = conn.Command("SELECT attachment_id, url FROM attachments")) {
+			await using var reader = await selectCmd.ExecuteReaderAsync();
+			
+			while (reader.Read()) {
+				var attachmentId = reader.GetInt64(0);
+				var originalUrl = reader.GetString(1);
+				normalizedUrls[attachmentId] = DiscordCdn.NormalizeUrl(originalUrl);
+			}
+		}
+
+		await using var tx = conn.BeginTransaction();
+
+		int totalUrls = normalizedUrls.Count;
+		int processedUrls = -1;
+
+		await using (var updateCmd = conn.Command("UPDATE attachments SET download_url = url, url = :normalized_url WHERE attachment_id = :attachment_id")) {
+			updateCmd.Parameters.Add(":attachment_id", SqliteType.Integer);
+			updateCmd.Parameters.Add(":normalized_url", SqliteType.Text);
+				
+			foreach (var (attachmentId, normalizedUrl) in normalizedUrls) {
+				if (++processedUrls % 1000 == 0) {
+					await reporter.SubWork("Updating URLs...", processedUrls, totalUrls);
+				}
+
+				updateCmd.Set(":attachment_id", attachmentId);
+				updateCmd.Set(":normalized_url", normalizedUrl);
+				updateCmd.ExecuteNonQuery();
+			}
+		}
+		
+		await reporter.SubWork("Updating URLs...", totalUrls, totalUrls);
+		
+		await tx.CommitAsync();
 	}
 
-	private void UpgradeSchemas(int dbVersion) {
+	private async Task NormalizeDownloadUrls(ISchemaUpgradeCallbacks.IProgressReporter reporter) {
+		await reporter.SubWork("Preparing downloads...", 0, 0);
+		
+		var normalizedUrlsToOriginalUrls = new Dictionary<string, string>();
+		var duplicateUrlsToDelete = new HashSet<string>();
+
+		await using (var selectCmd = conn.Command("SELECT url FROM downloads ORDER BY CASE WHEN status = 200 THEN 0 ELSE 1 END")) {
+			await using var reader = await selectCmd.ExecuteReaderAsync();
+
+			while (reader.Read()) {
+				var originalUrl = reader.GetString(0);
+				var normalizedUrl = DiscordCdn.NormalizeUrl(originalUrl);
+
+				if (!normalizedUrlsToOriginalUrls.TryAdd(normalizedUrl, originalUrl)) {
+					duplicateUrlsToDelete.Add(originalUrl);
+				}
+			}
+		}
+
+		conn.Execute("PRAGMA cache_size = -20000");
+
+		SqliteTransaction tx;
+		
+		await using (tx = conn.BeginTransaction()) {
+			await reporter.SubWork("Deleting duplicates...", 0, 0);
+
+			await using (var deleteCmd = conn.Delete("downloads", ("url", SqliteType.Text))) {
+				foreach (var duplicateUrl in duplicateUrlsToDelete) {
+					deleteCmd.Set(":url", duplicateUrl);
+					deleteCmd.ExecuteNonQuery();
+				}
+			}
+			
+			await tx.CommitAsync();
+		}
+
+		int totalUrls = normalizedUrlsToOriginalUrls.Count;
+		int processedUrls = -1;
+
+		tx = conn.BeginTransaction();
+		
+		await using (var updateCmd = conn.Command("UPDATE downloads SET download_url = :download_url, url = :normalized_url WHERE url = :download_url")) {
+			updateCmd.Parameters.Add(":normalized_url", SqliteType.Text);
+			updateCmd.Parameters.Add(":download_url", SqliteType.Text);
+			
+			foreach (var (normalizedUrl, downloadUrl) in normalizedUrlsToOriginalUrls) {
+				if (++processedUrls % 100 == 0) {
+					await reporter.SubWork("Updating URLs...", processedUrls, totalUrls);
+					
+					// Not proper way of dealing with transactions, but it avoids a long commit at the end.
+					// Schema upgrades are already non-atomic anyways, so this doesn't make it worse.
+					await tx.CommitAsync();
+					await tx.DisposeAsync();
+					
+					tx = conn.BeginTransaction();
+					updateCmd.Transaction = tx;
+				}
+
+				updateCmd.Set(":normalized_url", normalizedUrl);
+				updateCmd.Set(":download_url", downloadUrl);
+				updateCmd.ExecuteNonQuery();
+			}
+		}
+		
+		await reporter.SubWork("Updating URLs...", totalUrls, totalUrls);
+		
+		await tx.CommitAsync();
+		await tx.DisposeAsync();
+		
+		conn.Execute("PRAGMA cache_size = -2000");
+	}
+
+	private async Task UpgradeSchemas(int dbVersion, ISchemaUpgradeCallbacks.IProgressReporter reporter) {
 		var perf = Log.Start("from version " + dbVersion);
 
-		Execute("UPDATE metadata SET value = " + Version + " WHERE key = 'version'");
+		conn.Execute("UPDATE metadata SET value = " + Version + " WHERE key = 'version'");
 
 		if (dbVersion <= 1) {
-			Execute("ALTER TABLE channels ADD parent_id INTEGER");
+			await reporter.MainWork("Applying schema changes...", 0, 1);
+			conn.Execute("ALTER TABLE channels ADD parent_id INTEGER");
+			
 			perf.Step("Upgrade to version 2");
+			await reporter.NextVersion();
 		}
 
 		if (dbVersion <= 2) {
+			await reporter.MainWork("Applying schema changes...", 0, 1);
+			
 			CreateMessageEditTimestampTable();
 			CreateMessageRepliedToTable();
 
-			Execute(@"INSERT INTO edit_timestamps (message_id, edit_timestamp)
+			conn.Execute("""
-						SELECT message_id, edit_timestamp FROM messages
+			             INSERT INTO edit_timestamps (message_id, edit_timestamp)
-						WHERE edit_timestamp IS NOT NULL");
+			             SELECT message_id, edit_timestamp
+			             FROM messages
+			             WHERE edit_timestamp IS NOT NULL
+			             """);
 
-			Execute(@"INSERT INTO replied_to (message_id, replied_to_id)
+			conn.Execute("""
-						SELECT message_id, replied_to_id FROM messages
+			             INSERT INTO replied_to (message_id, replied_to_id)
-						WHERE replied_to_id IS NOT NULL");
+			             SELECT message_id, replied_to_id
+			             FROM messages
+			             WHERE replied_to_id IS NOT NULL
+			             """);
 
-			Execute("ALTER TABLE messages DROP COLUMN replied_to_id");
+			conn.Execute("ALTER TABLE messages DROP COLUMN replied_to_id");
-			Execute("ALTER TABLE messages DROP COLUMN edit_timestamp");
+			conn.Execute("ALTER TABLE messages DROP COLUMN edit_timestamp");
 
 			perf.Step("Upgrade to version 3");
-
+			
-			Execute("VACUUM");
+			await reporter.MainWork("Vacuuming the database...", 1, 1);
+			conn.Execute("VACUUM");
 			perf.Step("Vacuum");
+			
+			await reporter.NextVersion();
 		}
 
 		if (dbVersion <= 3) {
-			CreateDownloadsTable();
+			conn.Execute("""
+			             CREATE TABLE downloads (
+			             	url    TEXT NOT NULL PRIMARY KEY,
+			             	status INTEGER NOT NULL,
+			             	size   INTEGER NOT NULL,
+			             	blob   BLOB
+			             )
+			             """);
+			
 			perf.Step("Upgrade to version 4");
+			await reporter.NextVersion();
 		}
 
 		if (dbVersion <= 4) {
-			Execute("ALTER TABLE attachments ADD width INTEGER");
+			await reporter.MainWork("Applying schema changes...", 0, 1);
-			Execute("ALTER TABLE attachments ADD height INTEGER");
+			conn.Execute("ALTER TABLE attachments ADD width INTEGER");
+			conn.Execute("ALTER TABLE attachments ADD height INTEGER");
+			
 			perf.Step("Upgrade to version 5");
+			await reporter.NextVersion();
+		}
+
+		if (dbVersion <= 5) {
+			await reporter.MainWork("Applying schema changes...", 0, 3);
+			conn.Execute("ALTER TABLE attachments ADD download_url TEXT");
+			conn.Execute("ALTER TABLE downloads ADD download_url TEXT");
+			
+			await reporter.MainWork("Updating attachments...", 1, 3);
+			await NormalizeAttachmentUrls(reporter);
+			
+			await reporter.MainWork("Updating downloads...", 2, 3);
+			await NormalizeDownloadUrls(reporter);
+			
+			await reporter.MainWork("Applying schema changes...", 3, 3);
+			conn.Execute("ALTER TABLE attachments RENAME COLUMN url TO normalized_url");
+			conn.Execute("ALTER TABLE downloads RENAME COLUMN url TO normalized_url");
+			
+			perf.Step("Upgrade to version 6");
+			await reporter.NextVersion();
 		}
 
 		perf.End();

app/Server/Database/Sqlite/SqliteDatabaseFile.cs

@@ -18,7 +18,7 @@ namespace DHT.Server.Database.Sqlite;
 public sealed class SqliteDatabaseFile : IDatabaseFile {
 	private const int DefaultPoolSize = 5;
 
-	public static async Task<SqliteDatabaseFile?> OpenOrCreate(string path, Func<Task<bool>> checkCanUpgradeSchemas) {
+	public static async Task<SqliteDatabaseFile?> OpenOrCreate(string path, ISchemaUpgradeCallbacks schemaUpgradeCallbacks, TaskScheduler computeTaskResultScheduler) {
 		var connectionString = new SqliteConnectionStringBuilder {
 			DataSource = path,
 			Mode = SqliteOpenMode.ReadWriteCreate,
@@ -27,12 +27,16 @@ public sealed class SqliteDatabaseFile : IDatabaseFile {
 		var pool = new SqliteConnectionPool(connectionString, DefaultPoolSize);
 		bool wasOpened;
 
-		using (var conn = pool.Take()) {
+		try {
-			wasOpened = await new Schema(conn).Setup(checkCanUpgradeSchemas);
+			using var conn = pool.Take();
+			wasOpened = await new Schema(conn).Setup(schemaUpgradeCallbacks);
+		} catch (Exception) {
+			pool.Dispose();
+			throw;
 		}
 
 		if (wasOpened) {
-			return new SqliteDatabaseFile(path, pool);
+			return new SqliteDatabaseFile(path, pool, computeTaskResultScheduler);
 		}
 		else {
 			pool.Dispose();
@@ -49,13 +53,13 @@ public sealed class SqliteDatabaseFile : IDatabaseFile {
 	private readonly AsyncValueComputer<long>.Single totalAttachmentsComputer;
 	private readonly AsyncValueComputer<long>.Single totalDownloadsComputer;
 
-	private SqliteDatabaseFile(string path, SqliteConnectionPool pool) {
+	private SqliteDatabaseFile(string path, SqliteConnectionPool pool, TaskScheduler computeTaskResultScheduler) {
 		this.log = Log.ForType(typeof(SqliteDatabaseFile), System.IO.Path.GetFileName(path));
 		this.pool = pool;
 
-		this.totalMessagesComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateMessageStatistics).WithOutdatedResults().BuildWithComputer(ComputeMessageStatistics);
+		this.totalMessagesComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateMessageStatistics, computeTaskResultScheduler).WithOutdatedResults().BuildWithComputer(ComputeMessageStatistics);
-		this.totalAttachmentsComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateAttachmentStatistics).WithOutdatedResults().BuildWithComputer(ComputeAttachmentStatistics);
+		this.totalAttachmentsComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateAttachmentStatistics, computeTaskResultScheduler).WithOutdatedResults().BuildWithComputer(ComputeAttachmentStatistics);
-		this.totalDownloadsComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateDownloadStatistics).WithOutdatedResults().BuildWithComputer(ComputeDownloadStatistics);
+		this.totalDownloadsComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateDownloadStatistics, computeTaskResultScheduler).WithOutdatedResults().BuildWithComputer(ComputeDownloadStatistics);
 
 		this.Path = path;
 		this.Statistics = new DatabaseStatistics();
@@ -252,7 +256,8 @@ public sealed class SqliteDatabaseFile : IDatabaseFile {
 				("attachment_id", SqliteType.Integer),
 				("name", SqliteType.Text),
 				("type", SqliteType.Text),
-				("url", SqliteType.Text),
+				("normalized_url", SqliteType.Text),
+				("download_url", SqliteType.Text),
 				("size", SqliteType.Integer),
 				("width", SqliteType.Integer),
 				("height", SqliteType.Integer),
@@ -308,7 +313,8 @@ public sealed class SqliteDatabaseFile : IDatabaseFile {
 						attachmentCmd.Set(":attachment_id", attachment.Id);
 						attachmentCmd.Set(":name", attachment.Name);
 						attachmentCmd.Set(":type", attachment.Type);
-						attachmentCmd.Set(":url", attachment.Url);
+						attachmentCmd.Set(":normalized_url", attachment.NormalizedUrl);
+						attachmentCmd.Set(":download_url", attachment.DownloadUrl);
 						attachmentCmd.Set(":size", attachment.Size);
 						attachmentCmd.Set(":width", attachment.Width);
 						attachmentCmd.Set(":height", attachment.Height);
@@ -363,11 +369,13 @@ public sealed class SqliteDatabaseFile : IDatabaseFile {
 		var reactions = GetAllReactions();
 
 		using var conn = pool.Take();
-		using var cmd = conn.Command(@"
+		using var cmd = conn.Command($"""
-SELECT m.message_id, m.sender_id, m.channel_id, m.text, m.timestamp, et.edit_timestamp, rt.replied_to_id
+		                              SELECT m.message_id, m.sender_id, m.channel_id, m.text, m.timestamp, et.edit_timestamp, rt.replied_to_id
-FROM messages m
+		                              FROM messages m
-LEFT JOIN edit_timestamps et ON m.message_id = et.message_id
+		                              LEFT JOIN edit_timestamps et ON m.message_id = et.message_id
-LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereClause("m"));
+		                              LEFT JOIN replied_to rt ON m.message_id = rt.message_id
+		                              {filter.GenerateWhereClause("m")}
+		                              """);
 		using var reader = cmd.ExecuteReader();
 
 		while (reader.Read()) {
@@ -418,7 +426,7 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
 
 	public int CountAttachments(AttachmentFilter? filter = null) {
 		using var conn = pool.Take();
-		using var cmd = conn.Command("SELECT COUNT(DISTINCT url) FROM attachments a" + filter.GenerateWhereClause("a"));
+		using var cmd = conn.Command("SELECT COUNT(DISTINCT normalized_url) FROM attachments a" + filter.GenerateWhereClause("a"));
 		using var reader = cmd.ExecuteReader();
 
 		return reader.Read() ? reader.GetInt32(0) : 0;
@@ -427,13 +435,15 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
 	public void AddDownload(Data.Download download) {
 		using var conn = pool.Take();
 		using var cmd = conn.Upsert("downloads", new[] {
-			("url", SqliteType.Text),
+			("normalized_url", SqliteType.Text),
+			("download_url", SqliteType.Text),
 			("status", SqliteType.Integer),
 			("size", SqliteType.Integer),
 			("blob", SqliteType.Blob),
 		});
 
-		cmd.Set(":url", download.Url);
+		cmd.Set(":normalized_url", download.NormalizedUrl);
+		cmd.Set(":download_url", download.DownloadUrl);
 		cmd.Set(":status", (int) download.Status);
 		cmd.Set(":size", download.Size);
 		cmd.Set(":blob", download.Data);
@@ -446,15 +456,16 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
 		var list = new List<Data.Download>();
 
 		using var conn = pool.Take();
-		using var cmd = conn.Command("SELECT url, status, size FROM downloads");
+		using var cmd = conn.Command("SELECT normalized_url, download_url, status, size FROM downloads");
 		using var reader = cmd.ExecuteReader();
 
 		while (reader.Read()) {
-			string url = reader.GetString(0);
+			string normalizedUrl = reader.GetString(0);
-			var status = (DownloadStatus) reader.GetInt32(1);
+			string downloadUrl = reader.GetString(1);
-			ulong size = reader.GetUint64(2);
+			var status = (DownloadStatus) reader.GetInt32(2);
+			ulong size = reader.GetUint64(3);
 
-			list.Add(new Data.Download(url, status, size));
+			list.Add(new Data.Download(normalizedUrl, downloadUrl, status, size));
 		}
 
 		return list;
@@ -462,8 +473,8 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
 
 	public Data.Download GetDownloadWithData(Data.Download download) {
 		using var conn = pool.Take();
-		using var cmd = conn.Command("SELECT blob FROM downloads WHERE url = :url");
+		using var cmd = conn.Command("SELECT blob FROM downloads WHERE normalized_url = :url");
-		cmd.AddAndSet(":url", SqliteType.Text, download.Url);
+		cmd.AddAndSet(":url", SqliteType.Text, download.NormalizedUrl);
 
 		using var reader = cmd.ExecuteReader();
 
@@ -475,14 +486,15 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
 		}
 	}
 
-	public DownloadedAttachment? GetDownloadedAttachment(string url) {
+	public DownloadedAttachment? GetDownloadedAttachment(string normalizedUrl) {
 		using var conn = pool.Take();
-		using var cmd = conn.Command(@"
+		using var cmd = conn.Command("""
-SELECT a.type, d.blob FROM downloads d
+		                             SELECT a.type, d.blob FROM downloads d
-LEFT JOIN attachments a ON d.url = a.url
+		                             LEFT JOIN attachments a ON d.normalized_url = a.normalized_url
-WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
+		                             WHERE d.normalized_url = :normalized_url AND d.status = :success AND d.blob IS NOT NULL
+		                             """);
 
-		cmd.AddAndSet(":url", SqliteType.Text, url);
+		cmd.AddAndSet(":normalized_url", SqliteType.Text, normalizedUrl);
 		cmd.AddAndSet(":success", SqliteType.Integer, (int) DownloadStatus.Success);
 
 		using var reader = cmd.ExecuteReader();
@@ -499,7 +511,13 @@ WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
 
 	public void EnqueueDownloadItems(AttachmentFilter? filter = null) {
 		using var conn = pool.Take();
-		using var cmd = conn.Command("INSERT INTO downloads (url, status, size) SELECT a.url, :enqueued, MAX(a.size) FROM attachments a" + filter.GenerateWhereClause("a") + " GROUP BY a.url");
+		using var cmd = conn.Command($"""
+		                              INSERT INTO downloads (normalized_url, download_url, status, size)
+		                              SELECT a.normalized_url, a.download_url, :enqueued, MAX(a.size)
+		                              FROM attachments a
+		                              {filter.GenerateWhereClause("a")}
+		                              GROUP BY a.normalized_url
+		                              """);
 		cmd.AddAndSet(":enqueued", SqliteType.Integer, (int) DownloadStatus.Enqueued);
 		cmd.ExecuteNonQuery();
 	}
@@ -508,7 +526,7 @@ WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
 		var list = new List<DownloadItem>();
 
 		using var conn = pool.Take();
-		using var cmd = conn.Command("SELECT url, size FROM downloads WHERE status = :enqueued LIMIT :limit");
+		using var cmd = conn.Command("SELECT normalized_url, download_url, size FROM downloads WHERE status = :enqueued LIMIT :limit");
 		cmd.AddAndSet(":enqueued", SqliteType.Integer, (int) DownloadStatus.Enqueued);
 		cmd.AddAndSet(":limit", SqliteType.Integer, Math.Max(0, count));
 
@@ -516,8 +534,9 @@ WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
 
 		while (reader.Read()) {
 			list.Add(new DownloadItem {
-				Url = reader.GetString(0),
+				NormalizedUrl = reader.GetString(0),
-				Size = reader.GetUint64(1),
+				DownloadUrl = reader.GetString(1),
+				Size = reader.GetUint64(2),
 			});
 		}
 
@@ -531,7 +550,7 @@ WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
 
 	public DownloadStatusStatistics GetDownloadStatusStatistics() {
 		static void LoadUndownloadedStatistics(ISqliteConnection conn, DownloadStatusStatistics result) {
-			using var cmd = conn.Command("SELECT IFNULL(COUNT(size), 0), IFNULL(SUM(size), 0) FROM (SELECT MAX(a.size) size FROM attachments a WHERE a.url NOT IN (SELECT d.url FROM downloads d) GROUP BY a.url)");
+			using var cmd = conn.Command("SELECT IFNULL(COUNT(size), 0), IFNULL(SUM(size), 0) FROM (SELECT MAX(a.size) size FROM attachments a WHERE a.normalized_url NOT IN (SELECT d.normalized_url FROM downloads d) GROUP BY a.normalized_url)");
 			using var reader = cmd.ExecuteReader();
 
 			if (reader.Read()) {
@@ -541,14 +560,16 @@ WHERE d.url = :url AND d.status = :success AND d.blob IS NOT NULL");
 		}
 
 		static void LoadSuccessStatistics(ISqliteConnection conn, DownloadStatusStatistics result) {
-			using var cmd = conn.Command(@"SELECT
+			using var cmd = conn.Command("""
-IFNULL(SUM(CASE WHEN status = :enqueued THEN 1 ELSE 0 END), 0),
+			                             SELECT
-IFNULL(SUM(CASE WHEN status = :enqueued THEN size ELSE 0 END), 0),
+			                             IFNULL(SUM(CASE WHEN status = :enqueued THEN 1 ELSE 0 END), 0),
-IFNULL(SUM(CASE WHEN status = :success THEN 1 ELSE 0 END), 0),
+			                             IFNULL(SUM(CASE WHEN status = :enqueued THEN size ELSE 0 END), 0),
-IFNULL(SUM(CASE WHEN status = :success THEN size ELSE 0 END), 0),
+			                             IFNULL(SUM(CASE WHEN status = :success THEN 1 ELSE 0 END), 0),
-IFNULL(SUM(CASE WHEN status != :enqueued AND status != :success THEN 1 ELSE 0 END), 0),
+			                             IFNULL(SUM(CASE WHEN status = :success THEN size ELSE 0 END), 0),
-IFNULL(SUM(CASE WHEN status != :enqueued AND status != :success THEN size ELSE 0 END), 0)
+			                             IFNULL(SUM(CASE WHEN status != :enqueued AND status != :success THEN 1 ELSE 0 END), 0),
-FROM downloads");
+			                             IFNULL(SUM(CASE WHEN status != :enqueued AND status != :success THEN size ELSE 0 END), 0)
+			                             FROM downloads
+			                             """);
 			cmd.AddAndSet(":enqueued", SqliteType.Integer, (int) DownloadStatus.Enqueued);
 			cmd.AddAndSet(":success", SqliteType.Integer, (int) DownloadStatus.Success);
 
@@ -576,7 +597,7 @@ FROM downloads");
 		var dict = new MultiDictionary<ulong, Attachment>();
 
 		using var conn = pool.Take();
-		using var cmd = conn.Command("SELECT message_id, attachment_id, name, type, url, size, width, height FROM attachments");
+		using var cmd = conn.Command("SELECT message_id, attachment_id, name, type, normalized_url, download_url, size, width, height FROM attachments");
 		using var reader = cmd.ExecuteReader();
 
 		while (reader.Read()) {
@@ -586,10 +607,11 @@ FROM downloads");
 				Id = reader.GetUint64(1),
 				Name = reader.GetString(2),
 				Type = reader.IsDBNull(3) ? null : reader.GetString(3),
-				Url = reader.GetString(4),
+				NormalizedUrl = reader.GetString(4),
-				Size = reader.GetUint64(5),
+				DownloadUrl = reader.GetString(5),
-				Width = reader.IsDBNull(6) ? null : reader.GetInt32(6),
+				Size = reader.GetUint64(6),
-				Height = reader.IsDBNull(7) ? null : reader.GetInt32(7),
+				Width = reader.IsDBNull(7) ? null : reader.GetInt32(7),
+				Height = reader.IsDBNull(8) ? null : reader.GetInt32(8),
 			});
 		}
 
@@ -677,7 +699,7 @@ FROM downloads");
 
 	private long ComputeAttachmentStatistics() {
 		using var conn = pool.Take();
-		return conn.SelectScalar("SELECT COUNT(DISTINCT url) FROM attachments") as long? ?? 0L;
+		return conn.SelectScalar("SELECT COUNT(DISTINCT normalized_url) FROM attachments") as long? ?? 0L;
 	}
 
 	private void UpdateAttachmentStatistics(long totalAttachments) {

app/Server/Database/Sqlite/SqliteFilters.cs

@@ -50,10 +50,10 @@ static class SqliteFilters {
 		}
 
 		if (filter.DownloadItemRule == AttachmentFilter.DownloadItemRules.OnlyNotPresent) {
-			where.AddCondition("url NOT IN (SELECT url FROM downloads)");
+			where.AddCondition("normalized_url NOT IN (SELECT normalized_url FROM downloads)");
 		}
 		else if (filter.DownloadItemRule == AttachmentFilter.DownloadItemRules.OnlyPresent) {
-			where.AddCondition("url IN (SELECT url FROM downloads)");
+			where.AddCondition("normalized_url IN (SELECT normalized_url FROM downloads)");
 		}
 
 		return where.Generate();

app/Server/Database/Sqlite/Utils/SqliteExtensions.cs

@@ -5,14 +5,19 @@ using Microsoft.Data.Sqlite;
 namespace DHT.Server.Database.Sqlite.Utils;
 
 static class SqliteExtensions {
+	public static SqliteTransaction BeginTransaction(this ISqliteConnection conn) {
+		return conn.InnerConnection.BeginTransaction();
+	}
+
 	public static SqliteCommand Command(this ISqliteConnection conn, string sql) {
 		var cmd = conn.InnerConnection.CreateCommand();
 		cmd.CommandText = sql;
 		return cmd;
 	}
 
-	public static SqliteTransaction BeginTransaction(this ISqliteConnection conn) {
+	public static void Execute(this ISqliteConnection conn, string sql) {
-		return conn.InnerConnection.BeginTransaction();
+		using var cmd = conn.Command(sql);
+		cmd.ExecuteNonQuery();
 	}
 
 	public static object? SelectScalar(this ISqliteConnection conn, string sql) {

app/Server/Download/BackgroundDownloadThread.cs

@@ -87,16 +87,16 @@ public sealed class BackgroundDownloadThread : BaseModel {
 					FillQueue(db, queue, cancellationToken);
 
 					while (!cancellationToken.IsCancellationRequested && queue.TryDequeue(out var item)) {
-						var url = item.Url;
+						var downloadUrl = item.DownloadUrl;
-						Log.Debug("Downloading " + url + "...");
+						Log.Debug("Downloading " + downloadUrl + "...");
 
 						try {
-							db.AddDownload(Data.Download.NewSuccess(url, await client.GetByteArrayAsync(url, cancellationToken)));
+							db.AddDownload(Data.Download.NewSuccess(item, await client.GetByteArrayAsync(downloadUrl, cancellationToken)));
 						} catch (HttpRequestException e) {
-							db.AddDownload(Data.Download.NewFailure(url, e.StatusCode, item.Size));
+							db.AddDownload(Data.Download.NewFailure(item, e.StatusCode, item.Size));
 							Log.Error(e);
 						} catch (Exception e) {
-							db.AddDownload(Data.Download.NewFailure(url, null, item.Size));
+							db.AddDownload(Data.Download.NewFailure(item, null, item.Size));
 							Log.Error(e);
 						} finally {
 							parameters.FireOnItemFinished(item);

app/Server/Download/DiscordCdn.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Frozen;
+
+namespace DHT.Server.Download; 
+
+static class DiscordCdn {
+	private static FrozenSet<string> CdnHosts { get; } = new [] {
+		"cdn.discordapp.com",
+		"cdn.discord.com",
+	}.ToFrozenSet();
+
+	public static string NormalizeUrl(string originalUrl) {
+		return Uri.TryCreate(originalUrl, UriKind.Absolute, out var uri) && CdnHosts.Contains(uri.Host) ? uri.GetLeftPart(UriPartial.Path) : originalUrl;
+	}
+}

app/Server/Download/DownloadItem.cs

@@ -1,6 +1,7 @@
 namespace DHT.Server.Download;
 
 public readonly struct DownloadItem {
-	public string Url { get; init; }
+	public string NormalizedUrl { get; init; }
+	public string DownloadUrl { get; init; }
 	public ulong Size { get; init; }
 }

app/Server/Endpoints/BaseEndpoint.cs

@@ -16,11 +16,11 @@ abstract class BaseEndpoint {
 	private static readonly Log Log = Log.ForType<BaseEndpoint>();
 
 	protected IDatabaseFile Db { get; }
-	private readonly ServerParameters parameters;
+	protected ServerParameters Parameters { get; }
 
 	protected BaseEndpoint(IDatabaseFile db, ServerParameters parameters) {
 		this.Db = db;
-		this.parameters = parameters;
+		this.Parameters = parameters;
 	}
 
 	private async Task Handle(HttpContext ctx, StringValues token) {
@@ -29,7 +29,7 @@ abstract class BaseEndpoint {
 
 		Log.Info("Request: " + request.GetDisplayUrl() + " (" + request.ContentLength + " B)");
 
-		if (token.Count != 1 || token[0] != parameters.Token) {
+		if (token.Count != 1 || token[0] != Parameters.Token) {
 			Log.Error("Token: " + (token.Count == 1 ? token[0] : "<missing>"));
 			response.StatusCode = (int) HttpStatusCode.Forbidden;
 			return;
@@ -60,6 +60,10 @@ abstract class BaseEndpoint {
 	protected abstract Task<IHttpOutput> Respond(HttpContext ctx);
 
 	protected static async Task<JsonElement> ReadJson(HttpContext ctx) {
-		return await ctx.Request.ReadFromJsonAsync<JsonElement?>() ?? throw new HttpException(HttpStatusCode.UnsupportedMediaType, "This endpoint only accepts JSON.");
+		try {
+			return await ctx.Request.ReadFromJsonAsync(JsonElementContext.Default.JsonElement);
+		} catch (JsonException) {
+			throw new HttpException(HttpStatusCode.UnsupportedMediaType, "This endpoint only accepts JSON.");
+		}
 	}
 }

app/Server/Endpoints/GetTrackingScriptEndpoint.cs

@@ -0,0 +1,30 @@
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Web;
+using DHT.Server.Database;
+using DHT.Server.Service;
+using DHT.Utils.Http;
+using DHT.Utils.Resources;
+using Microsoft.AspNetCore.Http;
+
+namespace DHT.Server.Endpoints;
+
+sealed class GetTrackingScriptEndpoint : BaseEndpoint {
+	private static ResourceLoader Resources { get; } = new (Assembly.GetExecutingAssembly());
+	
+	public GetTrackingScriptEndpoint(IDatabaseFile db, ServerParameters parameters) : base(db, parameters) {}
+
+	protected override async Task<IHttpOutput> Respond(HttpContext ctx) {
+		string bootstrap = await Resources.ReadTextAsync("Tracker/bootstrap.js");
+		string script = bootstrap.Replace("= 0; /*[PORT]*/", "= " + Parameters.Port + ";")
+		                         .Replace("/*[TOKEN]*/", HttpUtility.JavaScriptStringEncode(Parameters.Token))
+		                         .Replace("/*[IMPORTS]*/", await Resources.ReadJoinedAsync("Tracker/scripts/", '\n'))
+		                         .Replace("/*[CSS-CONTROLLER]*/", await Resources.ReadTextAsync("Tracker/styles/controller.css"))
+		                         .Replace("/*[CSS-SETTINGS]*/", await Resources.ReadTextAsync("Tracker/styles/settings.css"))
+		                         .Replace("/*[DEBUGGER]*/", ctx.Request.Query.ContainsKey("debug") ? "debugger;" : "");
+		
+		ctx.Response.Headers.Append("X-DHT", "1");
+		return new HttpOutput.File("text/javascript", Encoding.UTF8.GetBytes(script));
+	}
+}

app/Server/Endpoints/TrackMessagesEndpoint.cs

@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using DHT.Server.Data;
 using DHT.Server.Data.Filters;
 using DHT.Server.Database;
+using DHT.Server.Download;
 using DHT.Server.Service;
 using DHT.Utils.Collections;
 using DHT.Utils.Http;
@@ -16,6 +17,9 @@ using Microsoft.AspNetCore.Http;
 namespace DHT.Server.Endpoints;
 
 sealed class TrackMessagesEndpoint : BaseEndpoint {
+	private const string HasNewMessages = "1";
+	private const string NoNewMessages = "0";
+	
 	public TrackMessagesEndpoint(IDatabaseFile db, ServerParameters parameters) : base(db, parameters) {}
 
 	protected override async Task<IHttpOutput> Respond(HttpContext ctx) {
@@ -40,7 +44,7 @@ sealed class TrackMessagesEndpoint : BaseEndpoint {
 
 		Db.AddMessages(messages);
 
-		return new HttpOutput.Json(anyNewMessages ? 1 : 0);
+		return new HttpOutput.Text(anyNewMessages ? HasNewMessages : NoNewMessages);
 	}
 
 	private static Message ReadMessage(JsonElement json, string path) => new() {
@@ -57,14 +61,18 @@ sealed class TrackMessagesEndpoint : BaseEndpoint {
 	};
 
 	[SuppressMessage("ReSharper", "ConvertToLambdaExpression")]
-	private static IEnumerable<Attachment> ReadAttachments(JsonElement.ArrayEnumerator array, string path) => array.Select(ele => new Attachment {
+	private static IEnumerable<Attachment> ReadAttachments(JsonElement.ArrayEnumerator array, string path) => array.Select(ele => {
-		Id = ele.RequireSnowflake("id", path),
+		var downloadUrl = ele.RequireString("url", path);
-		Name = ele.RequireString("name", path),
+		return new Attachment {
-		Type = ele.HasKey("type") ? ele.RequireString("type", path) : null,
+			Id = ele.RequireSnowflake("id", path),
-		Url = ele.RequireString("url", path),
+			Name = ele.RequireString("name", path),
-		Size = (ulong) ele.RequireLong("size", path),
+			Type = ele.HasKey("type") ? ele.RequireString("type", path) : null,
-		Width = ele.HasKey("width") ? ele.RequireInt("width", path) : null,
+			NormalizedUrl = DiscordCdn.NormalizeUrl(downloadUrl),
-		Height = ele.HasKey("height") ? ele.RequireInt("height", path) : null,
+			DownloadUrl = downloadUrl,
+			Size = (ulong) ele.RequireLong("size", path),
+			Width = ele.HasKey("width") ? ele.RequireInt("width", path) : null,
+			Height = ele.HasKey("height") ? ele.RequireInt("height", path) : null,
+		};
 	}).DistinctByKeyStable(static attachment => {
 		// Some Discord messages have duplicate attachments with the same id for unknown reasons.
 		return attachment.Id;

app/Server/Server.csproj

@@ -1,30 +1,43 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  
   <PropertyGroup>
     <RootNamespace>DHT.Server</RootNamespace>
-    <Nullable>enable</Nullable>
     <AssemblyName>DiscordHistoryTracker.Server</AssemblyName>
     <PackageId>DiscordHistoryTrackerServer</PackageId>
-    <Authors>chylex</Authors>
-    <Company>DiscordHistoryTracker</Company>
-    <Product>DiscordHistoryTrackerServer</Product>
-    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
-    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
-    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>none</DebugType>
   </PropertyGroup>
+
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
+  
   <ItemGroup>
-    <PackageReference Include="Microsoft.Data.Sqlite" Version="7.0.9" />
+    <PackageReference Include="Microsoft.Data.Sqlite" Version="8.0.0" />
   </ItemGroup>
+  
   <ItemGroup>
     <ProjectReference Include="..\Utils\Utils.csproj" />
   </ItemGroup>
+  
   <ItemGroup>
     <Compile Include="..\Version.cs" Link="Version.cs" />
   </ItemGroup>
+  
+  <ItemGroup>
+    <EmbeddedResource Include="../Resources/Tracker/bootstrap.js">
+      <LogicalName>Tracker\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="../Resources/Tracker/scripts/**">
+      <LogicalName>Tracker\scripts\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/scripts/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="../Resources/Tracker/styles/**">
+      <LogicalName>Tracker\styles\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/styles/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+  </ItemGroup>
+  
 </Project>

app/Server/Service/ServerLauncher.cs

@@ -61,14 +61,12 @@ public static class ServerLauncher {
 		}
 	}
 
-	private static void StartServerFromManagementThread(int port, string token, IDatabaseFile db) {
+	private static void StartServerFromManagementThread(ushort port, string token, IDatabaseFile db) {
 		Log.Info("Starting server on port " + port + "...");
 
 		void AddServices(IServiceCollection services) {
 			services.AddSingleton(typeof(IDatabaseFile), db);
-			services.AddSingleton(typeof(ServerParameters), new ServerParameters {
+			services.AddSingleton(typeof(ServerParameters), new ServerParameters(port, token));
-				Token = token
-			});
 		}
 
 		void SetKestrelOptions(KestrelServerOptions options) {
@@ -103,7 +101,7 @@ public static class ServerLauncher {
 		}
 	}
 
-	public static void Relaunch(int port, string token, IDatabaseFile db) {
+	public static void Relaunch(ushort port, string token, IDatabaseFile db) {
 		EnqueueMessage(new IMessage.StartServer(port, token, db));
 	}
 
@@ -113,11 +111,11 @@ public static class ServerLauncher {
 
 	private interface IMessage {
 		public sealed class StartServer : IMessage {
-			public int Port { get; }
+			public ushort Port { get; }
 			public string Token { get; }
 			public IDatabaseFile Db { get; }
 
-			public StartServer(int port, string token, IDatabaseFile db) {
+			public StartServer(ushort port, string token, IDatabaseFile db) {
 				this.Port = port;
 				this.Token = token;
 				this.Db = db;

app/Server/Service/ServerParameters.cs

@@ -1,5 +1,3 @@
 namespace DHT.Server.Service;
 
-readonly struct ServerParameters {
+sealed record ServerParameters(ushort Port, string Token);
-	public string Token { get; init; }
-}

app/Server/Service/ServerStartup.cs

@@ -24,7 +24,7 @@ sealed class Startup {
 
 		services.AddCors(static cors => {
 			cors.AddDefaultPolicy(static builder => {
-				builder.WithOrigins(AllowedOrigins).AllowCredentials().AllowAnyMethod().AllowAnyHeader();
+				builder.WithOrigins(AllowedOrigins).AllowCredentials().AllowAnyMethod().AllowAnyHeader().WithExposedHeaders("X-DHT");
 			});
 		});
 	}
@@ -34,17 +34,20 @@ sealed class Startup {
 		app.UseRouting();
 		app.UseCors();
 		app.UseEndpoints(endpoints => {
-			TrackChannelEndpoint trackChannel = new(db, parameters);
+			GetTrackingScriptEndpoint getTrackingScript = new (db, parameters);
-			endpoints.MapPost("/track-channel", async context => await trackChannel.HandlePost(context));
+			endpoints.MapGet("/get-tracking-script", context => getTrackingScript.HandleGet(context));
+			
+			TrackChannelEndpoint trackChannel = new (db, parameters);
+			endpoints.MapPost("/track-channel", context => trackChannel.HandlePost(context));
 
-			TrackUsersEndpoint trackUsers = new(db, parameters);
+			TrackUsersEndpoint trackUsers = new (db, parameters);
-			endpoints.MapPost("/track-users", async context => await trackUsers.HandlePost(context));
+			endpoints.MapPost("/track-users", context => trackUsers.HandlePost(context));
 
-			TrackMessagesEndpoint trackMessages = new(db, parameters);
+			TrackMessagesEndpoint trackMessages = new (db, parameters);
-			endpoints.MapPost("/track-messages", async context => await trackMessages.HandlePost(context));
+			endpoints.MapPost("/track-messages", context => trackMessages.HandlePost(context));
 
-			GetAttachmentEndpoint getAttachment = new(db, parameters);
+			GetAttachmentEndpoint getAttachment = new (db, parameters);
-			endpoints.MapGet("/get-attachment/{url}", async context => await getAttachment.HandleGet(context));
+			endpoints.MapGet("/get-attachment/{url}", context => getAttachment.HandleGet(context));
 		});
 	}
 }

app/Utils/Http/HttpOutput.cs

@@ -1,3 +1,4 @@
+using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 
@@ -12,15 +13,15 @@ public static class HttpOutput {
 		}
 	}
 
-	public sealed class Json : IHttpOutput {
+	public sealed class Text : IHttpOutput {
-		private readonly object? obj;
+		private readonly string text;
 
-		public Json(object? obj) {
+		public Text(string text) {
-			this.obj = obj;
+			this.text = text;
 		}
 
 		public Task WriteTo(HttpResponse response) {
-			return response.WriteAsJsonAsync(obj);
+			return response.WriteAsync(text, Encoding.UTF8);
 		}
 	}
 

app/Utils/Http/JsonElementContext.cs

@@ -0,0 +1,8 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace DHT.Utils.Http;
+
+[JsonSourceGenerationOptions(PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase, GenerationMode = JsonSourceGenerationMode.Default)]
+[JsonSerializable(typeof(JsonElement))]
+public sealed partial class JsonElementContext : JsonSerializerContext {}

app/Utils/Utils.csproj

@@ -1,27 +1,21 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  
   <PropertyGroup>
     <RootNamespace>DHT.Utils</RootNamespace>
-    <Nullable>enable</Nullable>
     <AssemblyName>DiscordHistoryTracker.Utils</AssemblyName>
     <PackageId>DiscordHistoryTrackerUtils</PackageId>
-    <Authors>chylex</Authors>
-    <Company>DiscordHistoryTracker</Company>
-    <Product>DiscordHistoryTrackerUtils</Product>
-    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
-    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
-    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>none</DebugType>
   </PropertyGroup>
+  
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
+  
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="2023.2.0" />
   </ItemGroup>
+  
   <ItemGroup>
     <Compile Include="..\Version.cs" Link="Version.cs" />
   </ItemGroup>
+  
 </Project>

app/Version.cs

@@ -8,5 +8,5 @@ using DHT.Utils;
 namespace DHT.Utils; 
 
 static class Version {
-	public const string Tag = "38.0.0.0";
+	public const string Tag = "39.1.0.0";
 }

app/build.bat

@@ -4,11 +4,11 @@ set list=win-x64 linux-x64 osx-x64
 rmdir /S /Q bin
 
 (for %%a in (%list%) do (
-  dotnet publish Desktop -c Release -r %%a -o ./bin/%%a -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true -p:PublishReadyToRun=false -p:PublishTrimmed=true -p:TrimMode=partial -p:JsonSerializerIsReflectionEnabledByDefault=true --self-contained true
+  dotnet publish Desktop -c Release -r %%a -o ./bin/%%a --self-contained true
   powershell "Compress-Archive -Path ./bin/%%a/* -DestinationPath ./bin/%%a.zip -CompressionLevel Optimal"
 ))
 
-dotnet publish Desktop -c Release -o ./bin/portable --self-contained false
+dotnet publish Desktop -c Release -o ./bin/portable -p:PublishSingleFile=false -p:PublishTrimmed=false --self-contained false
 powershell "Compress-Archive -Path ./bin/portable/* -DestinationPath ./bin/portable.zip -CompressionLevel Optimal"
 
 echo Done

app/build.sh

@@ -17,9 +17,9 @@ rm -rf "./bin"
 configurations=(win-x64 linux-x64 osx-x64)
 
 for cfg in ${configurations[@]}; do
-	dotnet publish Desktop -c Release -r "$cfg" -o "./bin/$cfg" -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true -p:PublishReadyToRun=false -p:PublishTrimmed=true -p:TrimMode=partial -p:JsonSerializerIsReflectionEnabledByDefault=true --self-contained true
+	dotnet publish Desktop -c Release -r "$cfg" -o "./bin/$cfg" --self-contained true
 	makezip "$cfg"
 done
 
-dotnet publish Desktop -c Release -o "./bin/portable" --self-contained false
+dotnet publish Desktop -c Release -o "./bin/portable" -p:PublishSingleFile=false -p:PublishTrimmed=false --self-contained false
 makezip "portable"

lib/node_modules/commander/LICENSE

@@ -1,22 +0,0 @@
-(The MIT License)
-
-Copyright (c) 2011 TJ Holowaychuk <tj@vision-media.ca>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-'Software'), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

lib/node_modules/commander/package.json

@@ -1,104 +0,0 @@
-{
-  "_args": [
-    [
-      {
-        "raw": "commander@~2.9.0",
-        "scope": null,
-        "escapedName": "commander",
-        "name": "commander",
-        "rawSpec": "~2.9.0",
-        "spec": ">=2.9.0 <2.10.0",
-        "type": "range"
-      },
-      "C:\\Users\\Dan\\node_modules\\uglify-es"
-    ]
-  ],
-  "_from": "commander@>=2.9.0 <2.10.0",
-  "_id": "commander@2.9.0",
-  "_inCache": true,
-  "_location": "/commander",
-  "_nodeVersion": "0.12.7",
-  "_npmUser": {
-    "name": "zhiyelee",
-    "email": "zhiyelee@gmail.com"
-  },
-  "_npmVersion": "2.11.3",
-  "_phantomChildren": {},
-  "_requested": {
-    "raw": "commander@~2.9.0",
-    "scope": null,
-    "escapedName": "commander",
-    "name": "commander",
-    "rawSpec": "~2.9.0",
-    "spec": ">=2.9.0 <2.10.0",
-    "type": "range"
-  },
-  "_requiredBy": [
-    "/uglify-es"
-  ],
-  "_resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
-  "_shasum": "9c99094176e12240cb22d6c5146098400fe0f7d4",
-  "_shrinkwrap": null,
-  "_spec": "commander@~2.9.0",
-  "_where": "C:\\Users\\Dan\\node_modules\\uglify-es",
-  "author": {
-    "name": "TJ Holowaychuk",
-    "email": "tj@vision-media.ca"
-  },
-  "bugs": {
-    "url": "https://github.com/tj/commander.js/issues"
-  },
-  "dependencies": {
-    "graceful-readlink": ">= 1.0.0"
-  },
-  "description": "the complete solution for node.js command-line programs",
-  "devDependencies": {
-    "should": ">= 0.0.1",
-    "sinon": ">=1.17.1"
-  },
-  "directories": {},
-  "dist": {
-    "shasum": "9c99094176e12240cb22d6c5146098400fe0f7d4",
-    "tarball": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz"
-  },
-  "engines": {
-    "node": ">= 0.6.x"
-  },
-  "files": [
-    "index.js"
-  ],
-  "gitHead": "b2aad7a8471d434593a85306aa73777a526e9f75",
-  "homepage": "https://github.com/tj/commander.js#readme",
-  "keywords": [
-    "command",
-    "option",
-    "parser"
-  ],
-  "license": "MIT",
-  "main": "index",
-  "maintainers": [
-    {
-      "name": "tjholowaychuk",
-      "email": "tj@vision-media.ca"
-    },
-    {
-      "name": "somekittens",
-      "email": "rkoutnik@gmail.com"
-    },
-    {
-      "name": "zhiyelee",
-      "email": "zhiyelee@gmail.com"
-    }
-  ],
-  "name": "commander",
-  "optionalDependencies": {},
-  "readme": "ERROR: No README data found!",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/tj/commander.js.git"
-  },
-  "scripts": {
-    "test": "make test"
-  },
-  "version": "2.9.0"
-}

lib/node_modules/graceful-readlink/LICENSE

@@ -1,22 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2015 Zhiye Li
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-

lib/node_modules/graceful-readlink/index.js

@@ -1,12 +0,0 @@
-var fs = require('fs')
-  , lstat = fs.lstatSync;
-
-exports.readlinkSync = function (p) {
-  if (lstat(p).isSymbolicLink()) {
-    return fs.readlinkSync(p);
-  } else {
-    return p;
-  }
-};
-
-

lib/node_modules/graceful-readlink/package.json

@@ -1,83 +0,0 @@
-{
-  "_args": [
-    [
-      {
-        "raw": "graceful-readlink@>= 1.0.0",
-        "scope": null,
-        "escapedName": "graceful-readlink",
-        "name": "graceful-readlink",
-        "rawSpec": ">= 1.0.0",
-        "spec": ">=1.0.0",
-        "type": "range"
-      },
-      "C:\\Users\\Dan\\node_modules\\commander"
-    ]
-  ],
-  "_from": "graceful-readlink@>=1.0.0",
-  "_id": "graceful-readlink@1.0.1",
-  "_inCache": true,
-  "_location": "/graceful-readlink",
-  "_nodeVersion": "0.11.14",
-  "_npmUser": {
-    "name": "zhiyelee",
-    "email": "zhiyelee@gmail.com"
-  },
-  "_npmVersion": "2.1.17",
-  "_phantomChildren": {},
-  "_requested": {
-    "raw": "graceful-readlink@>= 1.0.0",
-    "scope": null,
-    "escapedName": "graceful-readlink",
-    "name": "graceful-readlink",
-    "rawSpec": ">= 1.0.0",
-    "spec": ">=1.0.0",
-    "type": "range"
-  },
-  "_requiredBy": [
-    "/commander"
-  ],
-  "_resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
-  "_shasum": "4cafad76bc62f02fa039b2f94e9a3dd3a391a725",
-  "_shrinkwrap": null,
-  "_spec": "graceful-readlink@>= 1.0.0",
-  "_where": "C:\\Users\\Dan\\node_modules\\commander",
-  "author": {
-    "name": "zhiyelee"
-  },
-  "bugs": {
-    "url": "https://github.com/zhiyelee/graceful-readlink/issues"
-  },
-  "dependencies": {},
-  "description": "graceful fs.readlink",
-  "devDependencies": {},
-  "directories": {},
-  "dist": {
-    "shasum": "4cafad76bc62f02fa039b2f94e9a3dd3a391a725",
-    "tarball": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz"
-  },
-  "gitHead": "f6655275bebef706fb63fd01b5f062a7052419a5",
-  "homepage": "https://github.com/zhiyelee/graceful-readlink",
-  "keywords": [
-    "fs.readlink",
-    "readlink"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "maintainers": [
-    {
-      "name": "zhiyelee",
-      "email": "zhiyelee@gmail.com"
-    }
-  ],
-  "name": "graceful-readlink",
-  "optionalDependencies": {},
-  "readme": "ERROR: No README data found!",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/zhiyelee/graceful-readlink.git"
-  },
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "version": "1.0.1"
-}

lib/node_modules/source-map/LICENSE

@@ -1,28 +0,0 @@
-
-Copyright (c) 2009-2011, Mozilla Foundation and contributors
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
-
-* Neither the names of the Mozilla Foundation nor the names of project
-  contributors may be used to endorse or promote products derived from this
-  software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

lib/node_modules/source-map/lib/array-set.js

@@ -1,104 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-var util = require('./util');
-var has = Object.prototype.hasOwnProperty;
-
-/**
- * A data structure which is a combination of an array and a set. Adding a new
- * member is O(1), testing for membership is O(1), and finding the index of an
- * element is O(1). Removing elements from the set is not supported. Only
- * strings are supported for membership.
- */
-function ArraySet() {
-  this._array = [];
-  this._set = Object.create(null);
-}
-
-/**
- * Static method for creating ArraySet instances from an existing array.
- */
-ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
-  var set = new ArraySet();
-  for (var i = 0, len = aArray.length; i < len; i++) {
-    set.add(aArray[i], aAllowDuplicates);
-  }
-  return set;
-};
-
-/**
- * Return how many unique items are in this ArraySet. If duplicates have been
- * added, than those do not count towards the size.
- *
- * @returns Number
- */
-ArraySet.prototype.size = function ArraySet_size() {
-  return Object.getOwnPropertyNames(this._set).length;
-};
-
-/**
- * Add the given string to this set.
- *
- * @param String aStr
- */
-ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
-  var sStr = util.toSetString(aStr);
-  var isDuplicate = has.call(this._set, sStr);
-  var idx = this._array.length;
-  if (!isDuplicate || aAllowDuplicates) {
-    this._array.push(aStr);
-  }
-  if (!isDuplicate) {
-    this._set[sStr] = idx;
-  }
-};
-
-/**
- * Is the given string a member of this set?
- *
- * @param String aStr
- */
-ArraySet.prototype.has = function ArraySet_has(aStr) {
-  var sStr = util.toSetString(aStr);
-  return has.call(this._set, sStr);
-};
-
-/**
- * What is the index of the given string in the array?
- *
- * @param String aStr
- */
-ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
-  var sStr = util.toSetString(aStr);
-  if (has.call(this._set, sStr)) {
-    return this._set[sStr];
-  }
-  throw new Error('"' + aStr + '" is not in the set.');
-};
-
-/**
- * What is the element at the given index?
- *
- * @param Number aIdx
- */
-ArraySet.prototype.at = function ArraySet_at(aIdx) {
-  if (aIdx >= 0 && aIdx < this._array.length) {
-    return this._array[aIdx];
-  }
-  throw new Error('No element indexed by ' + aIdx);
-};
-
-/**
- * Returns the array representation of this set (which has the proper indices
- * indicated by indexOf). Note that this is a copy of the internal array used
- * for storing the members so that no one can mess with internal state.
- */
-ArraySet.prototype.toArray = function ArraySet_toArray() {
-  return this._array.slice();
-};
-
-exports.ArraySet = ArraySet;

lib/node_modules/source-map/lib/base64-vlq.js

@@ -1,140 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- *
- * Based on the Base 64 VLQ implementation in Closure Compiler:
- * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
- *
- * Copyright 2011 The Closure Compiler Authors. All rights reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above
- *    copyright notice, this list of conditions and the following
- *    disclaimer in the documentation and/or other materials provided
- *    with the distribution.
- *  * Neither the name of Google Inc. nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-var base64 = require('./base64');
-
-// A single base 64 digit can contain 6 bits of data. For the base 64 variable
-// length quantities we use in the source map spec, the first bit is the sign,
-// the next four bits are the actual value, and the 6th bit is the
-// continuation bit. The continuation bit tells us whether there are more
-// digits in this value following this digit.
-//
-//   Continuation
-//   |    Sign
-//   |    |
-//   V    V
-//   101011
-
-var VLQ_BASE_SHIFT = 5;
-
-// binary: 100000
-var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
-
-// binary: 011111
-var VLQ_BASE_MASK = VLQ_BASE - 1;
-
-// binary: 100000
-var VLQ_CONTINUATION_BIT = VLQ_BASE;
-
-/**
- * Converts from a two-complement value to a value where the sign bit is
- * placed in the least significant bit.  For example, as decimals:
- *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
- *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
- */
-function toVLQSigned(aValue) {
-  return aValue < 0
-    ? ((-aValue) << 1) + 1
-    : (aValue << 1) + 0;
-}
-
-/**
- * Converts to a two-complement value from a value where the sign bit is
- * placed in the least significant bit.  For example, as decimals:
- *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
- *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
- */
-function fromVLQSigned(aValue) {
-  var isNegative = (aValue & 1) === 1;
-  var shifted = aValue >> 1;
-  return isNegative
-    ? -shifted
-    : shifted;
-}
-
-/**
- * Returns the base 64 VLQ encoded value.
- */
-exports.encode = function base64VLQ_encode(aValue) {
-  var encoded = "";
-  var digit;
-
-  var vlq = toVLQSigned(aValue);
-
-  do {
-    digit = vlq & VLQ_BASE_MASK;
-    vlq >>>= VLQ_BASE_SHIFT;
-    if (vlq > 0) {
-      // There are still more digits in this value, so we must make sure the
-      // continuation bit is marked.
-      digit |= VLQ_CONTINUATION_BIT;
-    }
-    encoded += base64.encode(digit);
-  } while (vlq > 0);
-
-  return encoded;
-};
-
-/**
- * Decodes the next base 64 VLQ value from the given string and returns the
- * value and the rest of the string via the out parameter.
- */
-exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
-  var strLen = aStr.length;
-  var result = 0;
-  var shift = 0;
-  var continuation, digit;
-
-  do {
-    if (aIndex >= strLen) {
-      throw new Error("Expected more digits in base 64 VLQ value.");
-    }
-
-    digit = base64.decode(aStr.charCodeAt(aIndex++));
-    if (digit === -1) {
-      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
-    }
-
-    continuation = !!(digit & VLQ_CONTINUATION_BIT);
-    digit &= VLQ_BASE_MASK;
-    result = result + (digit << shift);
-    shift += VLQ_BASE_SHIFT;
-  } while (continuation);
-
-  aOutParam.value = fromVLQSigned(result);
-  aOutParam.rest = aIndex;
-};

lib/node_modules/source-map/lib/base64.js

@@ -1,67 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
-
-/**
- * Encode an integer in the range of 0 to 63 to a single base 64 digit.
- */
-exports.encode = function (number) {
-  if (0 <= number && number < intToCharMap.length) {
-    return intToCharMap[number];
-  }
-  throw new TypeError("Must be between 0 and 63: " + number);
-};
-
-/**
- * Decode a single base 64 character code digit to an integer. Returns -1 on
- * failure.
- */
-exports.decode = function (charCode) {
-  var bigA = 65;     // 'A'
-  var bigZ = 90;     // 'Z'
-
-  var littleA = 97;  // 'a'
-  var littleZ = 122; // 'z'
-
-  var zero = 48;     // '0'
-  var nine = 57;     // '9'
-
-  var plus = 43;     // '+'
-  var slash = 47;    // '/'
-
-  var littleOffset = 26;
-  var numberOffset = 52;
-
-  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
-  if (bigA <= charCode && charCode <= bigZ) {
-    return (charCode - bigA);
-  }
-
-  // 26 - 51: abcdefghijklmnopqrstuvwxyz
-  if (littleA <= charCode && charCode <= littleZ) {
-    return (charCode - littleA + littleOffset);
-  }
-
-  // 52 - 61: 0123456789
-  if (zero <= charCode && charCode <= nine) {
-    return (charCode - zero + numberOffset);
-  }
-
-  // 62: +
-  if (charCode == plus) {
-    return 62;
-  }
-
-  // 63: /
-  if (charCode == slash) {
-    return 63;
-  }
-
-  // Invalid base64 digit.
-  return -1;
-};

lib/node_modules/source-map/lib/binary-search.js

@@ -1,111 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-exports.GREATEST_LOWER_BOUND = 1;
-exports.LEAST_UPPER_BOUND = 2;
-
-/**
- * Recursive implementation of binary search.
- *
- * @param aLow Indices here and lower do not contain the needle.
- * @param aHigh Indices here and higher do not contain the needle.
- * @param aNeedle The element being searched for.
- * @param aHaystack The non-empty array being searched.
- * @param aCompare Function which takes two elements and returns -1, 0, or 1.
- * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
- *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
- *     closest element that is smaller than or greater than the one we are
- *     searching for, respectively, if the exact element cannot be found.
- */
-function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
-  // This function terminates when one of the following is true:
-  //
-  //   1. We find the exact element we are looking for.
-  //
-  //   2. We did not find the exact element, but we can return the index of
-  //      the next-closest element.
-  //
-  //   3. We did not find the exact element, and there is no next-closest
-  //      element than the one we are searching for, so we return -1.
-  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
-  var cmp = aCompare(aNeedle, aHaystack[mid], true);
-  if (cmp === 0) {
-    // Found the element we are looking for.
-    return mid;
-  }
-  else if (cmp > 0) {
-    // Our needle is greater than aHaystack[mid].
-    if (aHigh - mid > 1) {
-      // The element is in the upper half.
-      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
-    }
-
-    // The exact needle element was not found in this haystack. Determine if
-    // we are in termination case (3) or (2) and return the appropriate thing.
-    if (aBias == exports.LEAST_UPPER_BOUND) {
-      return aHigh < aHaystack.length ? aHigh : -1;
-    } else {
-      return mid;
-    }
-  }
-  else {
-    // Our needle is less than aHaystack[mid].
-    if (mid - aLow > 1) {
-      // The element is in the lower half.
-      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
-    }
-
-    // we are in termination case (3) or (2) and return the appropriate thing.
-    if (aBias == exports.LEAST_UPPER_BOUND) {
-      return mid;
-    } else {
-      return aLow < 0 ? -1 : aLow;
-    }
-  }
-}
-
-/**
- * This is an implementation of binary search which will always try and return
- * the index of the closest element if there is no exact hit. This is because
- * mappings between original and generated line/col pairs are single points,
- * and there is an implicit region between each of them, so a miss just means
- * that you aren't on the very start of a region.
- *
- * @param aNeedle The element you are looking for.
- * @param aHaystack The array that is being searched.
- * @param aCompare A function which takes the needle and an element in the
- *     array and returns -1, 0, or 1 depending on whether the needle is less
- *     than, equal to, or greater than the element, respectively.
- * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
- *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
- *     closest element that is smaller than or greater than the one we are
- *     searching for, respectively, if the exact element cannot be found.
- *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
- */
-exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
-  if (aHaystack.length === 0) {
-    return -1;
-  }
-
-  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
-                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
-  if (index < 0) {
-    return -1;
-  }
-
-  // We have found either the exact element, or the next-closest element than
-  // the one we are searching for. However, there may be more than one such
-  // element. Make sure we always return the smallest of these.
-  while (index - 1 >= 0) {
-    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
-      break;
-    }
-    --index;
-  }
-
-  return index;
-};

lib/node_modules/source-map/lib/mapping-list.js

@@ -1,79 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2014 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-var util = require('./util');
-
-/**
- * Determine whether mappingB is after mappingA with respect to generated
- * position.
- */
-function generatedPositionAfter(mappingA, mappingB) {
-  // Optimized for most common case
-  var lineA = mappingA.generatedLine;
-  var lineB = mappingB.generatedLine;
-  var columnA = mappingA.generatedColumn;
-  var columnB = mappingB.generatedColumn;
-  return lineB > lineA || lineB == lineA && columnB >= columnA ||
-         util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
-}
-
-/**
- * A data structure to provide a sorted view of accumulated mappings in a
- * performance conscious manner. It trades a neglibable overhead in general
- * case for a large speedup in case of mappings being added in order.
- */
-function MappingList() {
-  this._array = [];
-  this._sorted = true;
-  // Serves as infimum
-  this._last = {generatedLine: -1, generatedColumn: 0};
-}
-
-/**
- * Iterate through internal items. This method takes the same arguments that
- * `Array.prototype.forEach` takes.
- *
- * NOTE: The order of the mappings is NOT guaranteed.
- */
-MappingList.prototype.unsortedForEach =
-  function MappingList_forEach(aCallback, aThisArg) {
-    this._array.forEach(aCallback, aThisArg);
-  };
-
-/**
- * Add the given source mapping.
- *
- * @param Object aMapping
- */
-MappingList.prototype.add = function MappingList_add(aMapping) {
-  if (generatedPositionAfter(this._last, aMapping)) {
-    this._last = aMapping;
-    this._array.push(aMapping);
-  } else {
-    this._sorted = false;
-    this._array.push(aMapping);
-  }
-};
-
-/**
- * Returns the flat, sorted array of mappings. The mappings are sorted by
- * generated position.
- *
- * WARNING: This method returns internal data without copying, for
- * performance. The return value must NOT be mutated, and should be treated as
- * an immutable borrow. If you want to take ownership, you must make your own
- * copy.
- */
-MappingList.prototype.toArray = function MappingList_toArray() {
-  if (!this._sorted) {
-    this._array.sort(util.compareByGeneratedPositionsInflated);
-    this._sorted = true;
-  }
-  return this._array;
-};
-
-exports.MappingList = MappingList;

lib/node_modules/source-map/lib/quick-sort.js

@@ -1,114 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-// It turns out that some (most?) JavaScript engines don't self-host
-// `Array.prototype.sort`. This makes sense because C++ will likely remain
-// faster than JS when doing raw CPU-intensive sorting. However, when using a
-// custom comparator function, calling back and forth between the VM's C++ and
-// JIT'd JS is rather slow *and* loses JIT type information, resulting in
-// worse generated code for the comparator function than would be optimal. In
-// fact, when sorting with a comparator, these costs outweigh the benefits of
-// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
-// a ~3500ms mean speed-up in `bench/bench.html`.
-
-/**
- * Swap the elements indexed by `x` and `y` in the array `ary`.
- *
- * @param {Array} ary
- *        The array.
- * @param {Number} x
- *        The index of the first item.
- * @param {Number} y
- *        The index of the second item.
- */
-function swap(ary, x, y) {
-  var temp = ary[x];
-  ary[x] = ary[y];
-  ary[y] = temp;
-}
-
-/**
- * Returns a random integer within the range `low .. high` inclusive.
- *
- * @param {Number} low
- *        The lower bound on the range.
- * @param {Number} high
- *        The upper bound on the range.
- */
-function randomIntInRange(low, high) {
-  return Math.round(low + (Math.random() * (high - low)));
-}
-
-/**
- * The Quick Sort algorithm.
- *
- * @param {Array} ary
- *        An array to sort.
- * @param {function} comparator
- *        Function to use to compare two items.
- * @param {Number} p
- *        Start index of the array
- * @param {Number} r
- *        End index of the array
- */
-function doQuickSort(ary, comparator, p, r) {
-  // If our lower bound is less than our upper bound, we (1) partition the
-  // array into two pieces and (2) recurse on each half. If it is not, this is
-  // the empty array and our base case.
-
-  if (p < r) {
-    // (1) Partitioning.
-    //
-    // The partitioning chooses a pivot between `p` and `r` and moves all
-    // elements that are less than or equal to the pivot to the before it, and
-    // all the elements that are greater than it after it. The effect is that
-    // once partition is done, the pivot is in the exact place it will be when
-    // the array is put in sorted order, and it will not need to be moved
-    // again. This runs in O(n) time.
-
-    // Always choose a random pivot so that an input array which is reverse
-    // sorted does not cause O(n^2) running time.
-    var pivotIndex = randomIntInRange(p, r);
-    var i = p - 1;
-
-    swap(ary, pivotIndex, r);
-    var pivot = ary[r];
-
-    // Immediately after `j` is incremented in this loop, the following hold
-    // true:
-    //
-    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
-    //
-    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
-    for (var j = p; j < r; j++) {
-      if (comparator(ary[j], pivot) <= 0) {
-        i += 1;
-        swap(ary, i, j);
-      }
-    }
-
-    swap(ary, i + 1, j);
-    var q = i + 1;
-
-    // (2) Recurse on each half.
-
-    doQuickSort(ary, comparator, p, q - 1);
-    doQuickSort(ary, comparator, q + 1, r);
-  }
-}
-
-/**
- * Sort the given array in-place with the given comparator function.
- *
- * @param {Array} ary
- *        An array to sort.
- * @param {function} comparator
- *        Function to use to compare two items.
- */
-exports.quickSort = function (ary, comparator) {
-  doQuickSort(ary, comparator, 0, ary.length - 1);
-};

lib/node_modules/source-map/lib/source-map-generator.js

@@ -1,404 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-var base64VLQ = require('./base64-vlq');
-var util = require('./util');
-var ArraySet = require('./array-set').ArraySet;
-var MappingList = require('./mapping-list').MappingList;
-
-/**
- * An instance of the SourceMapGenerator represents a source map which is
- * being built incrementally. You may pass an object with the following
- * properties:
- *
- *   - file: The filename of the generated source.
- *   - sourceRoot: A root for all relative URLs in this source map.
- */
-function SourceMapGenerator(aArgs) {
-  if (!aArgs) {
-    aArgs = {};
-  }
-  this._file = util.getArg(aArgs, 'file', null);
-  this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
-  this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
-  this._sources = new ArraySet();
-  this._names = new ArraySet();
-  this._mappings = new MappingList();
-  this._sourcesContents = null;
-}
-
-SourceMapGenerator.prototype._version = 3;
-
-/**
- * Creates a new SourceMapGenerator based on a SourceMapConsumer
- *
- * @param aSourceMapConsumer The SourceMap.
- */
-SourceMapGenerator.fromSourceMap =
-  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
-    var sourceRoot = aSourceMapConsumer.sourceRoot;
-    var generator = new SourceMapGenerator({
-      file: aSourceMapConsumer.file,
-      sourceRoot: sourceRoot
-    });
-    aSourceMapConsumer.eachMapping(function (mapping) {
-      var newMapping = {
-        generated: {
-          line: mapping.generatedLine,
-          column: mapping.generatedColumn
-        }
-      };
-
-      if (mapping.source != null) {
-        newMapping.source = mapping.source;
-        if (sourceRoot != null) {
-          newMapping.source = util.relative(sourceRoot, newMapping.source);
-        }
-
-        newMapping.original = {
-          line: mapping.originalLine,
-          column: mapping.originalColumn
-        };
-
-        if (mapping.name != null) {
-          newMapping.name = mapping.name;
-        }
-      }
-
-      generator.addMapping(newMapping);
-    });
-    aSourceMapConsumer.sources.forEach(function (sourceFile) {
-      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
-      if (content != null) {
-        generator.setSourceContent(sourceFile, content);
-      }
-    });
-    return generator;
-  };
-
-/**
- * Add a single mapping from original source line and column to the generated
- * source's line and column for this source map being created. The mapping
- * object should have the following properties:
- *
- *   - generated: An object with the generated line and column positions.
- *   - original: An object with the original line and column positions.
- *   - source: The original source file (relative to the sourceRoot).
- *   - name: An optional original token name for this mapping.
- */
-SourceMapGenerator.prototype.addMapping =
-  function SourceMapGenerator_addMapping(aArgs) {
-    var generated = util.getArg(aArgs, 'generated');
-    var original = util.getArg(aArgs, 'original', null);
-    var source = util.getArg(aArgs, 'source', null);
-    var name = util.getArg(aArgs, 'name', null);
-
-    if (!this._skipValidation) {
-      this._validateMapping(generated, original, source, name);
-    }
-
-    if (source != null) {
-      source = String(source);
-      if (!this._sources.has(source)) {
-        this._sources.add(source);
-      }
-    }
-
-    if (name != null) {
-      name = String(name);
-      if (!this._names.has(name)) {
-        this._names.add(name);
-      }
-    }
-
-    this._mappings.add({
-      generatedLine: generated.line,
-      generatedColumn: generated.column,
-      originalLine: original != null && original.line,
-      originalColumn: original != null && original.column,
-      source: source,
-      name: name
-    });
-  };
-
-/**
- * Set the source content for a source file.
- */
-SourceMapGenerator.prototype.setSourceContent =
-  function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
-    var source = aSourceFile;
-    if (this._sourceRoot != null) {
-      source = util.relative(this._sourceRoot, source);
-    }
-
-    if (aSourceContent != null) {
-      // Add the source content to the _sourcesContents map.
-      // Create a new _sourcesContents map if the property is null.
-      if (!this._sourcesContents) {
-        this._sourcesContents = Object.create(null);
-      }
-      this._sourcesContents[util.toSetString(source)] = aSourceContent;
-    } else if (this._sourcesContents) {
-      // Remove the source file from the _sourcesContents map.
-      // If the _sourcesContents map is empty, set the property to null.
-      delete this._sourcesContents[util.toSetString(source)];
-      if (Object.keys(this._sourcesContents).length === 0) {
-        this._sourcesContents = null;
-      }
-    }
-  };
-
-/**
- * Applies the mappings of a sub-source-map for a specific source file to the
- * source map being generated. Each mapping to the supplied source file is
- * rewritten using the supplied source map. Note: The resolution for the
- * resulting mappings is the minimium of this map and the supplied map.
- *
- * @param aSourceMapConsumer The source map to be applied.
- * @param aSourceFile Optional. The filename of the source file.
- *        If omitted, SourceMapConsumer's file property will be used.
- * @param aSourceMapPath Optional. The dirname of the path to the source map
- *        to be applied. If relative, it is relative to the SourceMapConsumer.
- *        This parameter is needed when the two source maps aren't in the same
- *        directory, and the source map to be applied contains relative source
- *        paths. If so, those relative source paths need to be rewritten
- *        relative to the SourceMapGenerator.
- */
-SourceMapGenerator.prototype.applySourceMap =
-  function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
-    var sourceFile = aSourceFile;
-    // If aSourceFile is omitted, we will use the file property of the SourceMap
-    if (aSourceFile == null) {
-      if (aSourceMapConsumer.file == null) {
-        throw new Error(
-          'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
-          'or the source map\'s "file" property. Both were omitted.'
-        );
-      }
-      sourceFile = aSourceMapConsumer.file;
-    }
-    var sourceRoot = this._sourceRoot;
-    // Make "sourceFile" relative if an absolute Url is passed.
-    if (sourceRoot != null) {
-      sourceFile = util.relative(sourceRoot, sourceFile);
-    }
-    // Applying the SourceMap can add and remove items from the sources and
-    // the names array.
-    var newSources = new ArraySet();
-    var newNames = new ArraySet();
-
-    // Find mappings for the "sourceFile"
-    this._mappings.unsortedForEach(function (mapping) {
-      if (mapping.source === sourceFile && mapping.originalLine != null) {
-        // Check if it can be mapped by the source map, then update the mapping.
-        var original = aSourceMapConsumer.originalPositionFor({
-          line: mapping.originalLine,
-          column: mapping.originalColumn
-        });
-        if (original.source != null) {
-          // Copy mapping
-          mapping.source = original.source;
-          if (aSourceMapPath != null) {
-            mapping.source = util.join(aSourceMapPath, mapping.source)
-          }
-          if (sourceRoot != null) {
-            mapping.source = util.relative(sourceRoot, mapping.source);
-          }
-          mapping.originalLine = original.line;
-          mapping.originalColumn = original.column;
-          if (original.name != null) {
-            mapping.name = original.name;
-          }
-        }
-      }
-
-      var source = mapping.source;
-      if (source != null && !newSources.has(source)) {
-        newSources.add(source);
-      }
-
-      var name = mapping.name;
-      if (name != null && !newNames.has(name)) {
-        newNames.add(name);
-      }
-
-    }, this);
-    this._sources = newSources;
-    this._names = newNames;
-
-    // Copy sourcesContents of applied map.
-    aSourceMapConsumer.sources.forEach(function (sourceFile) {
-      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
-      if (content != null) {
-        if (aSourceMapPath != null) {
-          sourceFile = util.join(aSourceMapPath, sourceFile);
-        }
-        if (sourceRoot != null) {
-          sourceFile = util.relative(sourceRoot, sourceFile);
-        }
-        this.setSourceContent(sourceFile, content);
-      }
-    }, this);
-  };
-
-/**
- * A mapping can have one of the three levels of data:
- *
- *   1. Just the generated position.
- *   2. The Generated position, original position, and original source.
- *   3. Generated and original position, original source, as well as a name
- *      token.
- *
- * To maintain consistency, we validate that any new mapping being added falls
- * in to one of these categories.
- */
-SourceMapGenerator.prototype._validateMapping =
-  function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
-                                              aName) {
-    if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
-        && aGenerated.line > 0 && aGenerated.column >= 0
-        && !aOriginal && !aSource && !aName) {
-      // Case 1.
-      return;
-    }
-    else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
-             && aOriginal && 'line' in aOriginal && 'column' in aOriginal
-             && aGenerated.line > 0 && aGenerated.column >= 0
-             && aOriginal.line > 0 && aOriginal.column >= 0
-             && aSource) {
-      // Cases 2 and 3.
-      return;
-    }
-    else {
-      throw new Error('Invalid mapping: ' + JSON.stringify({
-        generated: aGenerated,
-        source: aSource,
-        original: aOriginal,
-        name: aName
-      }));
-    }
-  };
-
-/**
- * Serialize the accumulated mappings in to the stream of base 64 VLQs
- * specified by the source map format.
- */
-SourceMapGenerator.prototype._serializeMappings =
-  function SourceMapGenerator_serializeMappings() {
-    var previousGeneratedColumn = 0;
-    var previousGeneratedLine = 1;
-    var previousOriginalColumn = 0;
-    var previousOriginalLine = 0;
-    var previousName = 0;
-    var previousSource = 0;
-    var result = '';
-    var next;
-    var mapping;
-    var nameIdx;
-    var sourceIdx;
-
-    var mappings = this._mappings.toArray();
-    for (var i = 0, len = mappings.length; i < len; i++) {
-      mapping = mappings[i];
-      next = ''
-
-      if (mapping.generatedLine !== previousGeneratedLine) {
-        previousGeneratedColumn = 0;
-        while (mapping.generatedLine !== previousGeneratedLine) {
-          next += ';';
-          previousGeneratedLine++;
-        }
-      }
-      else {
-        if (i > 0) {
-          if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
-            continue;
-          }
-          next += ',';
-        }
-      }
-
-      next += base64VLQ.encode(mapping.generatedColumn
-                                 - previousGeneratedColumn);
-      previousGeneratedColumn = mapping.generatedColumn;
-
-      if (mapping.source != null) {
-        sourceIdx = this._sources.indexOf(mapping.source);
-        next += base64VLQ.encode(sourceIdx - previousSource);
-        previousSource = sourceIdx;
-
-        // lines are stored 0-based in SourceMap spec version 3
-        next += base64VLQ.encode(mapping.originalLine - 1
-                                   - previousOriginalLine);
-        previousOriginalLine = mapping.originalLine - 1;
-
-        next += base64VLQ.encode(mapping.originalColumn
-                                   - previousOriginalColumn);
-        previousOriginalColumn = mapping.originalColumn;
-
-        if (mapping.name != null) {
-          nameIdx = this._names.indexOf(mapping.name);
-          next += base64VLQ.encode(nameIdx - previousName);
-          previousName = nameIdx;
-        }
-      }
-
-      result += next;
-    }
-
-    return result;
-  };
-
-SourceMapGenerator.prototype._generateSourcesContent =
-  function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
-    return aSources.map(function (source) {
-      if (!this._sourcesContents) {
-        return null;
-      }
-      if (aSourceRoot != null) {
-        source = util.relative(aSourceRoot, source);
-      }
-      var key = util.toSetString(source);
-      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
-        ? this._sourcesContents[key]
-        : null;
-    }, this);
-  };
-
-/**
- * Externalize the source map.
- */
-SourceMapGenerator.prototype.toJSON =
-  function SourceMapGenerator_toJSON() {
-    var map = {
-      version: this._version,
-      sources: this._sources.toArray(),
-      names: this._names.toArray(),
-      mappings: this._serializeMappings()
-    };
-    if (this._file != null) {
-      map.file = this._file;
-    }
-    if (this._sourceRoot != null) {
-      map.sourceRoot = this._sourceRoot;
-    }
-    if (this._sourcesContents) {
-      map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
-    }
-
-    return map;
-  };
-
-/**
- * Render the source map being generated to a string.
- */
-SourceMapGenerator.prototype.toString =
-  function SourceMapGenerator_toString() {
-    return JSON.stringify(this.toJSON());
-  };
-
-exports.SourceMapGenerator = SourceMapGenerator;

lib/node_modules/source-map/lib/source-node.js

@@ -1,407 +0,0 @@
-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
-var util = require('./util');
-
-// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
-// operating systems these days (capturing the result).
-var REGEX_NEWLINE = /(\r?\n)/;
-
-// Newline character code for charCodeAt() comparisons
-var NEWLINE_CODE = 10;
-
-// Private symbol for identifying `SourceNode`s when multiple versions of
-// the source-map library are loaded. This MUST NOT CHANGE across
-// versions!
-var isSourceNode = "$$$isSourceNode$$$";
-
-/**
- * SourceNodes provide a way to abstract over interpolating/concatenating
- * snippets of generated JavaScript source code while maintaining the line and
- * column information associated with the original source code.
- *
- * @param aLine The original line number.
- * @param aColumn The original column number.
- * @param aSource The original source's filename.
- * @param aChunks Optional. An array of strings which are snippets of
- *        generated JS, or other SourceNodes.
- * @param aName The original identifier.
- */
-function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
-  this.children = [];
-  this.sourceContents = {};
-  this.line = aLine == null ? null : aLine;
-  this.column = aColumn == null ? null : aColumn;
-  this.source = aSource == null ? null : aSource;
-  this.name = aName == null ? null : aName;
-  this[isSourceNode] = true;
-  if (aChunks != null) this.add(aChunks);
-}
-
-/**
- * Creates a SourceNode from generated code and a SourceMapConsumer.
- *
- * @param aGeneratedCode The generated code
- * @param aSourceMapConsumer The SourceMap for the generated code
- * @param aRelativePath Optional. The path that relative sources in the
- *        SourceMapConsumer should be relative to.
- */
-SourceNode.fromStringWithSourceMap =
-  function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
-    // The SourceNode we want to fill with the generated code
-    // and the SourceMap
-    var node = new SourceNode();
-
-    // All even indices of this array are one line of the generated code,
-    // while all odd indices are the newlines between two adjacent lines
-    // (since `REGEX_NEWLINE` captures its match).
-    // Processed fragments are removed from this array, by calling `shiftNextLine`.
-    var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
-    var shiftNextLine = function() {
-      var lineContents = remainingLines.shift();
-      // The last line of a file might not have a newline.
-      var newLine = remainingLines.shift() || "";
-      return lineContents + newLine;
-    };
-
-    // We need to remember the position of "remainingLines"
-    var lastGeneratedLine = 1, lastGeneratedColumn = 0;
-
-    // The generate SourceNodes we need a code range.
-    // To extract it current and last mapping is used.
-    // Here we store the last mapping.
-    var lastMapping = null;
-
-    aSourceMapConsumer.eachMapping(function (mapping) {
-      if (lastMapping !== null) {
-        // We add the code from "lastMapping" to "mapping":
-        // First check if there is a new line in between.
-        if (lastGeneratedLine < mapping.generatedLine) {
-          // Associate first line with "lastMapping"
-          addMappingWithCode(lastMapping, shiftNextLine());
-          lastGeneratedLine++;
-          lastGeneratedColumn = 0;
-          // The remaining code is added without mapping
-        } else {
-          // There is no new line in between.
-          // Associate the code between "lastGeneratedColumn" and
-          // "mapping.generatedColumn" with "lastMapping"
-          var nextLine = remainingLines[0];
-          var code = nextLine.substr(0, mapping.generatedColumn -
-                                        lastGeneratedColumn);
-          remainingLines[0] = nextLine.substr(mapping.generatedColumn -
-                                              lastGeneratedColumn);
-          lastGeneratedColumn = mapping.generatedColumn;
-          addMappingWithCode(lastMapping, code);
-          // No more remaining code, continue
-          lastMapping = mapping;
-          return;
-        }
-      }
-      // We add the generated code until the first mapping
-      // to the SourceNode without any mapping.
-      // Each line is added as separate string.
-      while (lastGeneratedLine < mapping.generatedLine) {
-        node.add(shiftNextLine());
-        lastGeneratedLine++;
-      }
-      if (lastGeneratedColumn < mapping.generatedColumn) {
-        var nextLine = remainingLines[0];
-        node.add(nextLine.substr(0, mapping.generatedColumn));
-        remainingLines[0] = nextLine.substr(mapping.generatedColumn);
-        lastGeneratedColumn = mapping.generatedColumn;
-      }
-      lastMapping = mapping;
-    }, this);
-    // We have processed all mappings.
-    if (remainingLines.length > 0) {
-      if (lastMapping) {
-        // Associate the remaining code in the current line with "lastMapping"
-        addMappingWithCode(lastMapping, shiftNextLine());
-      }
-      // and add the remaining lines without any mapping
-      node.add(remainingLines.join(""));
-    }
-
-    // Copy sourcesContent into SourceNode
-    aSourceMapConsumer.sources.forEach(function (sourceFile) {
-      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
-      if (content != null) {
-        if (aRelativePath != null) {
-          sourceFile = util.join(aRelativePath, sourceFile);
-        }
-        node.setSourceContent(sourceFile, content);
-      }
-    });
-
-    return node;
-
-    function addMappingWithCode(mapping, code) {
-      if (mapping === null || mapping.source === undefined) {
-        node.add(code);
-      } else {
-        var source = aRelativePath
-          ? util.join(aRelativePath, mapping.source)
-          : mapping.source;
-        node.add(new SourceNode(mapping.originalLine,
-                                mapping.originalColumn,
-                                source,
-                                code,
-                                mapping.name));
-      }
-    }
-  };
-
-/**
- * Add a chunk of generated JS to this source node.
- *
- * @param aChunk A string snippet of generated JS code, another instance of
- *        SourceNode, or an array where each member is one of those things.
- */
-SourceNode.prototype.add = function SourceNode_add(aChunk) {
-  if (Array.isArray(aChunk)) {
-    aChunk.forEach(function (chunk) {
-      this.add(chunk);
-    }, this);
-  }
-  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
-    if (aChunk) {
-      this.children.push(aChunk);
-    }
-  }
-  else {
-    throw new TypeError(
-      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
-    );
-  }
-  return this;
-};
-
-/**
- * Add a chunk of generated JS to the beginning of this source node.
- *
- * @param aChunk A string snippet of generated JS code, another instance of
- *        SourceNode, or an array where each member is one of those things.
- */
-SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
-  if (Array.isArray(aChunk)) {
-    for (var i = aChunk.length-1; i >= 0; i--) {
-      this.prepend(aChunk[i]);
-    }
-  }
-  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
-    this.children.unshift(aChunk);
-  }
-  else {
-    throw new TypeError(
-      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
-    );
-  }
-  return this;
-};
-
-/**
- * Walk over the tree of JS snippets in this node and its children. The
- * walking function is called once for each snippet of JS and is passed that
- * snippet and the its original associated source's line/column location.
- *
- * @param aFn The traversal function.
- */
-SourceNode.prototype.walk = function SourceNode_walk(aFn) {
-  var chunk;
-  for (var i = 0, len = this.children.length; i < len; i++) {
-    chunk = this.children[i];
-    if (chunk[isSourceNode]) {
-      chunk.walk(aFn);
-    }
-    else {
-      if (chunk !== '') {
-        aFn(chunk, { source: this.source,
-                     line: this.line,
-                     column: this.column,
-                     name: this.name });
-      }
-    }
-  }
-};
-
-/**
- * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
- * each of `this.children`.
- *
- * @param aSep The separator.
- */
-SourceNode.prototype.join = function SourceNode_join(aSep) {
-  var newChildren;
-  var i;
-  var len = this.children.length;
-  if (len > 0) {
-    newChildren = [];
-    for (i = 0; i < len-1; i++) {
-      newChildren.push(this.children[i]);
-      newChildren.push(aSep);
-    }
-    newChildren.push(this.children[i]);
-    this.children = newChildren;
-  }
-  return this;
-};
-
-/**
- * Call String.prototype.replace on the very right-most source snippet. Useful
- * for trimming whitespace from the end of a source node, etc.
- *
- * @param aPattern The pattern to replace.
- * @param aReplacement The thing to replace the pattern with.
- */
-SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
-  var lastChild = this.children[this.children.length - 1];
-  if (lastChild[isSourceNode]) {
-    lastChild.replaceRight(aPattern, aReplacement);
-  }
-  else if (typeof lastChild === 'string') {
-    this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
-  }
-  else {
-    this.children.push(''.replace(aPattern, aReplacement));
-  }
-  return this;
-};
-
-/**
- * Set the source content for a source file. This will be added to the SourceMapGenerator
- * in the sourcesContent field.
- *
- * @param aSourceFile The filename of the source file
- * @param aSourceContent The content of the source file
- */
-SourceNode.prototype.setSourceContent =
-  function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
-    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
-  };
-
-/**
- * Walk over the tree of SourceNodes. The walking function is called for each
- * source file content and is passed the filename and source content.
- *
- * @param aFn The traversal function.
- */
-SourceNode.prototype.walkSourceContents =
-  function SourceNode_walkSourceContents(aFn) {
-    for (var i = 0, len = this.children.length; i < len; i++) {
-      if (this.children[i][isSourceNode]) {
-        this.children[i].walkSourceContents(aFn);
-      }
-    }
-
-    var sources = Object.keys(this.sourceContents);
-    for (var i = 0, len = sources.length; i < len; i++) {
-      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
-    }
-  };
-
-/**
- * Return the string representation of this source node. Walks over the tree
- * and concatenates all the various snippets together to one string.
- */
-SourceNode.prototype.toString = function SourceNode_toString() {
-  var str = "";
-  this.walk(function (chunk) {
-    str += chunk;
-  });
-  return str;
-};
-
-/**
- * Returns the string representation of this source node along with a source
- * map.
- */
-SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
-  var generated = {
-    code: "",
-    line: 1,
-    column: 0
-  };
-  var map = new SourceMapGenerator(aArgs);
-  var sourceMappingActive = false;
-  var lastOriginalSource = null;
-  var lastOriginalLine = null;
-  var lastOriginalColumn = null;
-  var lastOriginalName = null;
-  this.walk(function (chunk, original) {
-    generated.code += chunk;
-    if (original.source !== null
-        && original.line !== null
-        && original.column !== null) {
-      if(lastOriginalSource !== original.source
-         || lastOriginalLine !== original.line
-         || lastOriginalColumn !== original.column
-         || lastOriginalName !== original.name) {
-        map.addMapping({
-          source: original.source,
-          original: {
-            line: original.line,
-            column: original.column
-          },
-          generated: {
-            line: generated.line,
-            column: generated.column
-          },
-          name: original.name
-        });
-      }
-      lastOriginalSource = original.source;
-      lastOriginalLine = original.line;
-      lastOriginalColumn = original.column;
-      lastOriginalName = original.name;
-      sourceMappingActive = true;
-    } else if (sourceMappingActive) {
-      map.addMapping({
-        generated: {
-          line: generated.line,
-          column: generated.column
-        }
-      });
-      lastOriginalSource = null;
-      sourceMappingActive = false;
-    }
-    for (var idx = 0, length = chunk.length; idx < length; idx++) {
-      if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
-        generated.line++;
-        generated.column = 0;
-        // Mappings end at eol
-        if (idx + 1 === length) {
-          lastOriginalSource = null;
-          sourceMappingActive = false;
-        } else if (sourceMappingActive) {
-          map.addMapping({
-            source: original.source,
-            original: {
-              line: original.line,
-              column: original.column
-            },
-            generated: {
-              line: generated.line,
-              column: generated.column
-            },
-            name: original.name
-          });
-        }
-      } else {
-        generated.column++;
-      }
-    }
-  });
-  this.walkSourceContents(function (sourceFile, sourceContent) {
-    map.setSourceContent(sourceFile, sourceContent);
-  });
-
-  return { code: generated.code, map: map };
-};
-
-exports.SourceNode = SourceNode;