mirror of
https://github.com/QL-Win/QuickLook.git
synced 2025-09-14 20:29:07 +00:00
Support .AppImage
This commit is contained in:
ema
@@ -0,0 +1,43 @@
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// Copyright © 2017-2025 QL-Win Contributors
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System.Drawing;
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namespace QuickLook.Plugin.AppViewer.PackageParsers.AppImage;
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public class AppImageInfo
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{
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public string Arch { get; set; }
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public string Version { get; set; }
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public string Name { get; set; }
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public string Exec { get; set; }
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public string Icon { get; set; }
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public Bitmap Logo { get; set; }
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public bool HasIcon => !string.IsNullOrEmpty(Icon) && Logo != null;
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public string Type { get; set; }
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public string Terminal { get; set; }
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public string[] Env { get; set; }
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}
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@@ -0,0 +1,39 @@
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// Copyright © 2017-2025 QL-Win Contributors
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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namespace QuickLook.Plugin.AppViewer.PackageParsers.AppImage;
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public class AppImageParser
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{
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public static AppImageInfo Parse(string path)
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{
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var reader = new AppImageReader(path);
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return new AppImageInfo()
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{
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Arch = reader.Arch,
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Version = reader.Version,
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Name = reader.Name,
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Exec = reader.Exec,
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Icon = reader.Icon,
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Logo = reader.Logo,
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Type = reader.Type,
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Terminal = reader.Terminal,
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Env = reader.Env,
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};
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}
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}
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@@ -0,0 +1,256 @@
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// Copyright © 2017-2025 QL-Win Contributors
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using DiscUtils.SquashFs;
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using DiscUtils.Streams;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace QuickLook.Plugin.AppViewer.PackageParsers.AppImage;
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public class AppImageReader
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{
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public Dictionary<string, Dictionary<string, string>> DesktopEntry { get; private set; } = [];
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public string Arch => DesktopEntry["Desktop Entry"]["X-AppImage-Arch"];
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public string Version => DesktopEntry["Desktop Entry"]["X-AppImage-Version"];
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public string Name => DesktopEntry["Desktop Entry"]["X-AppImage-Name"];
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public string Exec => DesktopEntry["Desktop Entry"]["Exec"];
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public string Icon => DesktopEntry["Desktop Entry"]["Icon"];
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public Bitmap Logo { get; set; }
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public string Type => DesktopEntry["Desktop Entry"]["Type"];
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public string Terminal => DesktopEntry["Desktop Entry"]["Terminal"];
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public string[] Env { get; set; }
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static AppImageReader()
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{
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DiscUtils.Complete.SetupHelper.SetupComplete();
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}
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public AppImageReader(Stream stream)
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{
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Open(stream);
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}
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public AppImageReader(string path)
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{
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using FileStream fs = File.OpenRead(path);
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Open(fs);
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}
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private void Open(Stream stream)
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{
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using SquashFileSystemReader squash = FindSquashFsOffset(stream);
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ReadFiles(squash);
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}
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private SquashFileSystemReader FindSquashFsOffset(Stream stream)
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{
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byte[] buffer = new byte[4];
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for (long i = 0; i < stream.Length - 4; i++)
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{
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stream.Position = i;
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stream.ReadExactly(buffer, 0, 4);
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uint magic = BitConverter.ToUInt32(buffer, 0); // little-endian
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if (magic == SuperBlock.SquashFsMagic)
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{
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try
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{
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var subStream = new SubStream(stream, i, stream.Length - i);
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SuperBlock superBlock = new();
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superBlock.ReadFrom(subStream, superBlock.Size);
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// Supported for ZLib and Xz only
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if (superBlock.Compression == SquashFileSystemCompressionKind.ZLib
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|| superBlock.Compression == SquashFileSystemCompressionKind.Xz)
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{
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subStream.Position = 0;
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var squash = new SquashFileSystemReader(subStream);
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return squash;
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}
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else if (Enum.IsDefined(typeof(SquashFileSystemCompressionKind), superBlock.Compression)
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&& superBlock.Compression != SquashFileSystemCompressionKind.Unknown)
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{
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// Unsupported compression
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return null;
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}
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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}
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}
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}
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return null;
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}
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private void ReadFiles(SquashFileSystemReader squash)
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{
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byte[] icon = null;
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Dictionary<string, byte[]> prepareIcons = [];
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foreach (var entry in squash.GetFileSystemEntries(@"\"))
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{
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try
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{
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Console.WriteLine(entry);
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if (entry == @"\.DirIcon")
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continue; // Ignore symlink
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// Cache possible icon files in advance
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if (entry.EndsWith(".png"))
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{
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prepareIcons.Add(entry, squash.ReadBytes(entry));
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}
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if (entry.EndsWith("AppRun.env"))
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{
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string env = squash.ReadString(entry);
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Env = env?.Split('\n').Where(e => !string.IsNullOrWhiteSpace(e)).ToArray() ?? [];
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}
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if (entry.EndsWith(".desktop"))
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{
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string desktop = squash.ReadString(entry);
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DesktopEntry = IniReader.Parse(desktop);
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}
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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}
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}
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if (DesktopEntry.ContainsKey("Desktop Entry"))
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{
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var section = DesktopEntry["Desktop Entry"];
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// Icon Lookup but PNG supported only
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// https://specifications.freedesktop.org/icon-theme-spec
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if (section.ContainsKey("Icon"))
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{
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string iconEntry = section["Icon"];
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if (prepareIcons.ContainsKey(@$"\{iconEntry}.png"))
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{
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icon = prepareIcons[@$"\{iconEntry}.png"];
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}
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if (icon == null)
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{
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foreach (var entry in squash.GetFileSystemEntries(@$"\usr\share\icons\hicolor\128x128\apps"))
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{
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try
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{
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if (entry == @$"\usr\share\icons\hicolor\128x128\apps\{iconEntry}.png")
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{
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prepareIcons.Add(entry, squash.ReadBytes(entry));
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icon = prepareIcons[@$"\{iconEntry}.png"];
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break;
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}
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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}
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}
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}
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if (icon != null)
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{
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using MemoryStream ms = new(icon);
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Logo = new Bitmap(ms);
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}
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}
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}
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}
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}
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file static class StreamExtension
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{
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public static byte[] ReadBytes(this SquashFileSystemReader squash, string path)
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{
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using Stream s = squash.OpenFile(path, FileMode.Open);
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using MemoryStream ms = new();
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s.CopyTo(ms);
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byte[] data = ms.ToArray();
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return data;
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}
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public static string ReadString(this SquashFileSystemReader squash, string path, Encoding encoding = null)
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{
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return (encoding ?? Encoding.UTF8).GetString(squash.ReadBytes(path));
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}
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}
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file static class IniReader
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{
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public static Dictionary<string, Dictionary<string, string>> Parse(string iniContent)
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{
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var result = new Dictionary<string, Dictionary<string, string>>(StringComparer.OrdinalIgnoreCase);
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Dictionary<string, string> currentSection = null;
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using (var reader = new StringReader(iniContent))
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{
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string line;
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while ((line = reader.ReadLine()) != null)
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{
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line = line.Trim();
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if (string.IsNullOrEmpty(line) || line.StartsWith(";") || line.StartsWith("#"))
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continue;
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if (line.StartsWith("[") && line.EndsWith("]"))
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{
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var sectionName = line.Substring(1, line.Length - 2).Trim();
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currentSection = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
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result[sectionName] = currentSection;
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}
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else if (currentSection != null)
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{
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var separatorIndex = line.IndexOf('=');
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if (separatorIndex > 0)
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{
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var key = line.Substring(0, separatorIndex).Trim();
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var value = line.Substring(separatorIndex + 1).Trim();
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currentSection[key] = value;
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}
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}
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}
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}
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return result;
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}
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}
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