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432 lines
18 KiB
C#
432 lines
18 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Ls.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Verbs.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Implements the 'ls' verb.
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//
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// --[ License ] --------------------------------------------------------------
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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
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// published by the Free Software Foundation, either version 3 of the
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// License, or (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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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2020 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.CommandLine;
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using System.CommandLine.Invocation;
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using System.Linq;
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using System.Text;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.CommonTypes.Enums;
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using DiscImageChef.CommonTypes.Interfaces;
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using DiscImageChef.CommonTypes.Structs;
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using DiscImageChef.Console;
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using DiscImageChef.Core;
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namespace DiscImageChef.Commands.Filesystem
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{
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internal class LsCommand : Command
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{
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public LsCommand() : base("list", "Lists files in disc image.")
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{
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AddAlias("ls");
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Add(new Option(new[]
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{
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"--encoding", "-e"
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}, "Name of character encoding to use.")
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{
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Argument = new Argument<string>(() => null), Required = false
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});
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Add(new Option(new[]
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{
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"--long-format", "-l"
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}, "Uses long format.")
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{
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Argument = new Argument<bool>(() => true), Required = false
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});
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Add(new Option(new[]
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{
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"--options", "-O"
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}, "Comma separated name=value pairs of options to pass to filesystem plugin.")
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{
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Argument = new Argument<string>(() => null), Required = false
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});
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Add(new Option(new[]
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{
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"--namespace", "-n"
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}, "Namespace to use for filenames.")
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{
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Argument = new Argument<string>(() => null), Required = false
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});
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AddArgument(new Argument<string>
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{
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Arity = ArgumentArity.ExactlyOne, Description = "Media image path", Name = "image-path"
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});
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Handler = CommandHandler.Create(GetType().GetMethod(nameof(Invoke)));
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}
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public static int Invoke(bool debug, bool verbose, string encoding, string imagePath, bool longFormat,
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string @namespace, string options)
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{
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MainClass.PrintCopyright();
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if(debug)
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DicConsole.DebugWriteLineEvent += System.Console.Error.WriteLine;
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if(verbose)
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DicConsole.VerboseWriteLineEvent += System.Console.WriteLine;
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DicConsole.DebugWriteLine("Ls command", "--debug={0}", debug);
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DicConsole.DebugWriteLine("Ls command", "--encoding={0}", encoding);
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DicConsole.DebugWriteLine("Ls command", "--input={0}", imagePath);
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DicConsole.DebugWriteLine("Ls command", "--options={0}", options);
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DicConsole.DebugWriteLine("Ls command", "--verbose={0}", verbose);
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Statistics.AddCommand("ls");
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var filtersList = new FiltersList();
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IFilter inputFilter = filtersList.GetFilter(imagePath);
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Dictionary<string, string> parsedOptions = Core.Options.Parse(options);
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DicConsole.DebugWriteLine("Ls command", "Parsed options:");
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foreach(KeyValuePair<string, string> parsedOption in parsedOptions)
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DicConsole.DebugWriteLine("Ls command", "{0} = {1}", parsedOption.Key, parsedOption.Value);
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parsedOptions.Add("debug", debug.ToString());
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if(inputFilter == null)
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{
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DicConsole.ErrorWriteLine("Cannot open specified file.");
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return(int)ErrorNumber.CannotOpenFile;
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}
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Encoding encodingClass = null;
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if(encoding != null)
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try
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{
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encodingClass = Claunia.Encoding.Encoding.GetEncoding(encoding);
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if(verbose)
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DicConsole.VerboseWriteLine("Using encoding for {0}.", encodingClass.EncodingName);
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}
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catch(ArgumentException)
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{
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DicConsole.ErrorWriteLine("Specified encoding is not supported.");
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return(int)ErrorNumber.EncodingUnknown;
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}
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PluginBase plugins = GetPluginBase.Instance;
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try
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{
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IMediaImage imageFormat = ImageFormat.Detect(inputFilter);
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if(imageFormat == null)
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{
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DicConsole.WriteLine("Image format not identified, not proceeding with analysis.");
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return(int)ErrorNumber.UnrecognizedFormat;
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}
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if(verbose)
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DicConsole.VerboseWriteLine("Image format identified by {0} ({1}).", imageFormat.Name,
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imageFormat.Id);
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else
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DicConsole.WriteLine("Image format identified by {0}.", imageFormat.Name);
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try
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{
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if(!imageFormat.Open(inputFilter))
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{
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DicConsole.WriteLine("Unable to open image format");
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DicConsole.WriteLine("No error given");
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return(int)ErrorNumber.CannotOpenFormat;
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}
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DicConsole.DebugWriteLine("Ls command", "Correctly opened image file.");
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DicConsole.DebugWriteLine("Ls command", "Image without headers is {0} bytes.",
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imageFormat.Info.ImageSize);
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DicConsole.DebugWriteLine("Ls command", "Image has {0} sectors.", imageFormat.Info.Sectors);
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DicConsole.DebugWriteLine("Ls command", "Image identifies disk type as {0}.",
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imageFormat.Info.MediaType);
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Statistics.AddMediaFormat(imageFormat.Format);
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Statistics.AddMedia(imageFormat.Info.MediaType, false);
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Statistics.AddFilter(inputFilter.Name);
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}
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catch(Exception ex)
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{
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DicConsole.ErrorWriteLine("Unable to open image format");
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DicConsole.ErrorWriteLine("Error: {0}", ex.Message);
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return(int)ErrorNumber.CannotOpenFormat;
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}
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List<Partition> partitions = Core.Partitions.GetAll(imageFormat);
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Core.Partitions.AddSchemesToStats(partitions);
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List<string> idPlugins;
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IReadOnlyFilesystem plugin;
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Errno error;
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if(partitions.Count == 0)
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DicConsole.DebugWriteLine("Ls command", "No partitions found");
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else
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{
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DicConsole.WriteLine("{0} partitions found.", partitions.Count);
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for(int i = 0; i < partitions.Count; i++)
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{
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DicConsole.WriteLine();
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DicConsole.WriteLine("Partition {0}:", partitions[i].Sequence);
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DicConsole.WriteLine("Identifying filesystem on partition");
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Core.Filesystems.Identify(imageFormat, out idPlugins, partitions[i]);
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if(idPlugins.Count == 0)
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DicConsole.WriteLine("Filesystem not identified");
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else if(idPlugins.Count > 1)
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{
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DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins");
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foreach(string pluginName in idPlugins)
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if(plugins.ReadOnlyFilesystems.TryGetValue(pluginName, out plugin))
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{
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DicConsole.WriteLine($"As identified by {plugin.Name}.");
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var fs = (IReadOnlyFilesystem)plugin.
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GetType().GetConstructor(Type.EmptyTypes)?.
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Invoke(new object[]
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{ });
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if(fs == null)
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continue;
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error = fs.Mount(imageFormat, partitions[i], encodingClass, parsedOptions,
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@namespace);
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if(error == Errno.NoError)
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{
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ListFilesInDir("/", fs, longFormat);
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else
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DicConsole.ErrorWriteLine("Unable to mount device, error {0}",
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error.ToString());
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}
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}
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else
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{
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plugins.ReadOnlyFilesystems.TryGetValue(idPlugins[0], out plugin);
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if(plugin == null)
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continue;
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DicConsole.WriteLine($"Identified by {plugin.Name}.");
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var fs = (IReadOnlyFilesystem)plugin.
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GetType().GetConstructor(Type.EmptyTypes)?.Invoke(new object[]
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{ });
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if(fs == null)
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continue;
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error = fs.Mount(imageFormat, partitions[i], encodingClass, parsedOptions, @namespace);
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if(error == Errno.NoError)
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{
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ListFilesInDir("/", fs, longFormat);
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else
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DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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}
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var wholePart = new Partition
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{
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Name = "Whole device", Length = imageFormat.Info.Sectors,
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Size = imageFormat.Info.Sectors * imageFormat.Info.SectorSize
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};
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Core.Filesystems.Identify(imageFormat, out idPlugins, wholePart);
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if(idPlugins.Count == 0)
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DicConsole.WriteLine("Filesystem not identified");
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else if(idPlugins.Count > 1)
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{
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DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins");
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foreach(string pluginName in idPlugins)
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if(plugins.ReadOnlyFilesystems.TryGetValue(pluginName, out plugin))
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{
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DicConsole.WriteLine($"As identified by {plugin.Name}.");
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var fs = (IReadOnlyFilesystem)plugin.
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GetType().GetConstructor(Type.EmptyTypes)?.Invoke(new object[]
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{ });
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if(fs == null)
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continue;
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error = fs.Mount(imageFormat, wholePart, encodingClass, parsedOptions, @namespace);
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if(error == Errno.NoError)
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{
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ListFilesInDir("/", fs, longFormat);
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else
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DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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else
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{
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plugins.ReadOnlyFilesystems.TryGetValue(idPlugins[0], out plugin);
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if(plugin != null)
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{
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DicConsole.WriteLine($"Identified by {plugin.Name}.");
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var fs = (IReadOnlyFilesystem)plugin.
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GetType().GetConstructor(Type.EmptyTypes)?.Invoke(new object[]
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{ });
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if(fs != null)
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{
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error = fs.Mount(imageFormat, wholePart, encodingClass, parsedOptions, @namespace);
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if(error == Errno.NoError)
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{
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ListFilesInDir("/", fs, longFormat);
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Statistics.AddFilesystem(fs.XmlFsType.Type);
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}
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else
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DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString());
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}
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}
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}
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}
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catch(Exception ex)
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{
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DicConsole.ErrorWriteLine($"Error reading file: {ex.Message}");
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DicConsole.DebugWriteLine("Ls command", ex.StackTrace);
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return(int)ErrorNumber.UnexpectedException;
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}
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return(int)ErrorNumber.NoError;
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}
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static void ListFilesInDir(string path, IReadOnlyFilesystem fs, bool longFormat)
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{
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if(path.StartsWith("/"))
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path = path.Substring(1);
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DicConsole.WriteLine(string.IsNullOrEmpty(path) ? "Root directory" : $"Directory: {path}");
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Errno error = fs.ReadDir(path, out List<string> directory);
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if(error != Errno.NoError)
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{
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DicConsole.ErrorWriteLine("Error {0} reading root directory {1}", error.ToString(), path);
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return;
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}
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Dictionary<string, FileEntryInfo> stats = new Dictionary<string, FileEntryInfo>();
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foreach(string entry in directory)
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{
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fs.Stat(path + "/" + entry, out FileEntryInfo stat);
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stats.Add(entry, stat);
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}
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foreach(KeyValuePair<string, FileEntryInfo> entry in
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stats.OrderBy(e => e.Value?.Attributes.HasFlag(FileAttributes.Directory) == false))
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if(longFormat)
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{
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if(entry.Value != null)
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{
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if(entry.Value.Attributes.HasFlag(FileAttributes.Directory))
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DicConsole.WriteLine("{0, 10:d} {0, 12:T} {1, -20} {2}", entry.Value.CreationTimeUtc,
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"<DIR>", entry.Key);
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else
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DicConsole.WriteLine("{0, 10:d} {0, 12:T} {1, 6}{2, 14:##,#} {3}",
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entry.Value.CreationTimeUtc, entry.Value.Inode, entry.Value.Length,
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entry.Key);
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error = fs.ListXAttr(path + "/" + entry.Key, out List<string> xattrs);
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if(error != Errno.NoError)
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continue;
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foreach(string xattr in xattrs)
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{
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byte[] xattrBuf = new byte[0];
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error = fs.GetXattr(path + "/" + entry.Key, xattr, ref xattrBuf);
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if(error == Errno.NoError)
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DicConsole.WriteLine("\t\t{0}\t{1:##,#}", xattr, xattrBuf.Length);
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}
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}
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else
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DicConsole.WriteLine("{0, 47}{1}", string.Empty, entry.Key);
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}
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else
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{
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if(entry.Value != null &&
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entry.Value.Attributes.HasFlag(FileAttributes.Directory))
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DicConsole.WriteLine("{0}/", entry.Key);
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else
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DicConsole.WriteLine("{0}", entry.Key);
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}
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DicConsole.WriteLine();
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foreach(KeyValuePair<string, FileEntryInfo> subdirectory in
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stats.Where(e => e.Value?.Attributes.HasFlag(FileAttributes.Directory) == true))
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ListFilesInDir(path + "/" + subdirectory.Key, fs, longFormat);
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}
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}
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} |