267 lines
12 KiB
C#
267 lines
12 KiB
C#
using System.Collections.ObjectModel;
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using System.IO.Compression;
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using System.IO;
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using System.Text.Json;
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using Microsoft.Web.WebView2.Core;
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namespace FoxBrowser.Core;
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public sealed class PinnedExtensionItem
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{
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public required CoreWebView2BrowserExtension Extension { get; init; }
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public required string Name { get; init; }
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public string Glyph => string.IsNullOrWhiteSpace(Name) ? "🧩" : Name[..1].ToUpperInvariant();
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public string? IconPath { get; init; }
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public bool HasIcon => !string.IsNullOrWhiteSpace(IconPath) && File.Exists(IconPath);
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public string? PopupPage { get; init; }
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}
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public sealed class ExtensionManager
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{
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private readonly CoreWebView2Profile _profile;
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private readonly string _metadataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FoxBrowser", "extension-options.json");
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private readonly string _uiMetadataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FoxBrowser", "extension-ui.json");
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private readonly string _pinnedPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FoxBrowser", "pinned-extensions.json");
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private readonly Dictionary<string, string?> _optionsPages;
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private readonly Dictionary<string, ExtensionUiMetadata> _uiMetadata;
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private readonly HashSet<string> _pinnedIds;
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public static string ExtensionsRootPath => Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FoxBrowser", "Extensions");
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public ExtensionManager(CoreWebView2Profile profile)
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{
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_profile = profile;
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_optionsPages = LoadOptionsPages();
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_uiMetadata = LoadUiMetadata();
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_pinnedIds = LoadPinnedIds();
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}
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public ObservableCollection<CoreWebView2BrowserExtension> Extensions { get; } = new();
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public ObservableCollection<PinnedExtensionItem> PinnedExtensions { get; } = new();
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public event EventHandler? PinnedExtensionsChanged;
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public async Task RefreshAsync()
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{
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Extensions.Clear();
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PinnedExtensions.Clear();
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var installed = await _profile.GetBrowserExtensionsAsync();
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foreach (var extension in installed) Extensions.Add(extension);
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RebuildPinned();
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}
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public async Task<CoreWebView2BrowserExtension> AddExtensionAsync(string folderPath)
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{
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if (!Directory.Exists(folderPath)) throw new DirectoryNotFoundException(folderPath);
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var manifestPath = Path.Combine(folderPath, "manifest.json");
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if (!File.Exists(manifestPath)) throw new InvalidDataException("У вибраній папці немає manifest.json.");
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var manifest = await ReadManifestAsync(manifestPath);
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var extension = await _profile.AddBrowserExtensionAsync(folderPath);
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_optionsPages[extension.Id] = ReadOptionsPage(manifest);
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_uiMetadata[extension.Id] = ReadUiMetadata(manifest, folderPath);
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SaveOptionsPages();
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SaveUiMetadata();
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Extensions.Add(extension);
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RebuildPinned();
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return extension;
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}
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public async Task<CoreWebView2BrowserExtension> AddArchiveAsync(string archivePath)
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{
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if (!File.Exists(archivePath)) throw new FileNotFoundException("Файл extension не знайдено.", archivePath);
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var extensionName = Path.GetFileNameWithoutExtension(archivePath);
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var safeName = string.Concat(extensionName.Select(ch => char.IsLetterOrDigit(ch) || ch is '-' or '_' ? ch : '_'));
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if (string.IsNullOrWhiteSpace(safeName)) safeName = "extension";
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var destination = Path.Combine(ExtensionsRootPath, $"{safeName}_{Guid.NewGuid():N}");
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Directory.CreateDirectory(destination);
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try
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{
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await using var input = File.OpenRead(archivePath);
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using var archive = await OpenZipPayloadAsync(input, archivePath);
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archive.ExtractToDirectory(destination);
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var manifestFolder = FindManifestFolder(destination);
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return await AddExtensionAsync(manifestFolder);
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}
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catch
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{
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try { Directory.Delete(destination, recursive: true); } catch { }
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throw;
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}
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}
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public static void OpenExtensionsFolder()
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{
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Directory.CreateDirectory(ExtensionsRootPath);
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System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo
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{
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FileName = "explorer.exe",
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Arguments = $"\"{ExtensionsRootPath}\"",
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UseShellExecute = true
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});
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}
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private static string FindManifestFolder(string destination)
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{
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var rootManifest = Path.Combine(destination, "manifest.json");
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if (File.Exists(rootManifest)) return destination;
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var nested = Directory.EnumerateFiles(destination, "manifest.json", SearchOption.AllDirectories).FirstOrDefault();
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if (nested is null) throw new InvalidDataException("В архіві не знайдено manifest.json.");
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return Path.GetDirectoryName(nested)!;
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}
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private static async Task<ZipArchive> OpenZipPayloadAsync(FileStream input, string archivePath)
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{
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if (!archivePath.EndsWith(".crx", StringComparison.OrdinalIgnoreCase))
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return new ZipArchive(input, ZipArchiveMode.Read, leaveOpen: false);
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var header = new byte[16];
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var read = await input.ReadAsync(header);
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if (read < 16 || header[0] != (byte)'C' || header[1] != (byte)'r' || header[2] != (byte)'2' || header[3] != (byte)'4')
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throw new InvalidDataException("Файл CRX має некоректний заголовок.");
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var version = BitConverter.ToInt32(header, 4);
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var zipOffset = version switch
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{
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2 => 16 + BitConverter.ToInt32(header, 8) + BitConverter.ToInt32(header, 12),
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3 => 12 + BitConverter.ToInt32(header, 8),
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_ => throw new InvalidDataException($"Непідтримувана версія CRX: {version}.")
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};
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input.Position = zipOffset;
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var payload = new MemoryStream();
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await input.CopyToAsync(payload);
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payload.Position = 0;
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return new ZipArchive(payload, ZipArchiveMode.Read, leaveOpen: false);
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}
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public string? GetOptionsPage(string extensionId) => _optionsPages.TryGetValue(extensionId, out var page) ? page : null;
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public string? GetPopupPage(string extensionId) => _uiMetadata.TryGetValue(extensionId, out var metadata) ? metadata.PopupPage : null;
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public string? GetIconPath(string extensionId) => _uiMetadata.TryGetValue(extensionId, out var metadata) ? metadata.IconPath : null;
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public bool IsPinned(CoreWebView2BrowserExtension extension) => _pinnedIds.Contains(extension.Id);
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public void SetPinned(CoreWebView2BrowserExtension extension, bool pinned)
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{
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if (pinned) _pinnedIds.Add(extension.Id); else _pinnedIds.Remove(extension.Id);
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SavePinnedIds();
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RebuildPinned();
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}
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public async Task SetEnabledAsync(CoreWebView2BrowserExtension extension, bool enabled)
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{
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await extension.EnableAsync(enabled);
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RebuildPinned();
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}
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public async Task RemoveAsync(CoreWebView2BrowserExtension extension)
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{
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await extension.RemoveAsync();
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Extensions.Remove(extension);
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_optionsPages.Remove(extension.Id);
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_uiMetadata.Remove(extension.Id);
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_pinnedIds.Remove(extension.Id);
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SaveOptionsPages();
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SaveUiMetadata();
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SavePinnedIds();
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RebuildPinned();
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}
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private void RebuildPinned()
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{
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PinnedExtensions.Clear();
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foreach (var extension in Extensions)
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{
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if (!_pinnedIds.Contains(extension.Id) || !extension.IsEnabled) continue;
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_uiMetadata.TryGetValue(extension.Id, out var metadata);
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PinnedExtensions.Add(new PinnedExtensionItem
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{
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Extension = extension,
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Name = extension.Name,
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IconPath = metadata?.IconPath,
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PopupPage = metadata?.PopupPage
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});
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}
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PinnedExtensionsChanged?.Invoke(this, EventArgs.Empty);
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}
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private static async Task<JsonElement> ReadManifestAsync(string path)
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{
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await using var stream = File.OpenRead(path);
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using var document = await JsonDocument.ParseAsync(stream);
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return document.RootElement.Clone();
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}
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private static string? ReadOptionsPage(JsonElement manifest)
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{
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if (manifest.TryGetProperty("options_ui", out var optionsUi) && optionsUi.ValueKind == JsonValueKind.Object && optionsUi.TryGetProperty("page", out var modernPage) && modernPage.ValueKind == JsonValueKind.String)
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return NormalizeRelativePage(modernPage.GetString());
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if (manifest.TryGetProperty("options_page", out var legacyPage) && legacyPage.ValueKind == JsonValueKind.String)
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return NormalizeRelativePage(legacyPage.GetString());
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return null;
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}
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private static ExtensionUiMetadata ReadUiMetadata(JsonElement manifest, string folderPath)
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{
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JsonElement action = default;
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if (manifest.TryGetProperty("action", out var modernAction) && modernAction.ValueKind == JsonValueKind.Object) action = modernAction;
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else if (manifest.TryGetProperty("browser_action", out var legacyAction) && legacyAction.ValueKind == JsonValueKind.Object) action = legacyAction;
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string? popup = null;
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if (action.ValueKind == JsonValueKind.Object && action.TryGetProperty("default_popup", out var popupElement) && popupElement.ValueKind == JsonValueKind.String)
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popup = NormalizeRelativePage(popupElement.GetString());
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string? icon = null;
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if (action.ValueKind == JsonValueKind.Object && action.TryGetProperty("default_icon", out var iconElement))
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{
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var iconPage = iconElement.ValueKind == JsonValueKind.String
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? iconElement.GetString()
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: iconElement.ValueKind == JsonValueKind.Object
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? iconElement.EnumerateObject().OrderByDescending(item => ParseIconSize(item.Name)).Select(item => item.Value.GetString()).FirstOrDefault()
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: null;
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var normalized = NormalizeRelativePage(iconPage);
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if (normalized is not null)
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{
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var fullPath = Path.GetFullPath(Path.Combine(folderPath, normalized));
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if (File.Exists(fullPath)) icon = fullPath;
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}
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}
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return new ExtensionUiMetadata(popup, icon);
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}
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private static int ParseIconSize(string key) => int.TryParse(key, out var size) ? size : 0;
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private static string? NormalizeRelativePage(string? page)
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{
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if (string.IsNullOrWhiteSpace(page)) return null;
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var normalized = page.Trim().Replace('\\', '/').TrimStart('/');
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return normalized.Contains("..", StringComparison.Ordinal) ? null : normalized;
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}
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private Dictionary<string, string?> LoadOptionsPages() => LoadJson(_metadataPath, new Dictionary<string, string?>(StringComparer.OrdinalIgnoreCase));
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private Dictionary<string, ExtensionUiMetadata> LoadUiMetadata() => LoadJson(_uiMetadataPath, new Dictionary<string, ExtensionUiMetadata>(StringComparer.OrdinalIgnoreCase));
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private HashSet<string> LoadPinnedIds() => LoadJson(_pinnedPath, new HashSet<string>(StringComparer.OrdinalIgnoreCase));
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private static T LoadJson<T>(string path, T fallback)
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{
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try { return File.Exists(path) ? JsonSerializer.Deserialize<T>(File.ReadAllText(path)) ?? fallback : fallback; }
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catch { return fallback; }
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}
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private static void SaveJson<T>(string path, T value)
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{
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try
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{
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Directory.CreateDirectory(Path.GetDirectoryName(path)!);
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File.WriteAllText(path, JsonSerializer.Serialize(value, new JsonSerializerOptions { WriteIndented = true }));
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}
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catch { }
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}
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private void SaveOptionsPages() => SaveJson(_metadataPath, _optionsPages);
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private void SaveUiMetadata() => SaveJson(_uiMetadataPath, _uiMetadata);
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private void SavePinnedIds() => SaveJson(_pinnedPath, _pinnedIds);
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public sealed record ExtensionUiMetadata(string? PopupPage, string? IconPath);
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}
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