mirror of
https://github.com/aaru-dps/Aaru.git
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400 lines
22 KiB
C#
400 lines
22 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : ExtractFiles.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 'extract-files' 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 © 2011-2017 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 DiscImageChef.Console;
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using DiscImageChef.Filesystems;
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using DiscImageChef.ImagePlugins;
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using DiscImageChef.PartPlugins;
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using System.IO;
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using DiscImageChef.Filters;
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using DiscImageChef.Core;
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namespace DiscImageChef.Commands
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{
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public static class ExtractFiles
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{
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public static void doExtractFiles(ExtractFilesOptions options)
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{
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DicConsole.DebugWriteLine("Extract-Files command", "--debug={0}", options.Debug);
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DicConsole.DebugWriteLine("Extract-Files command", "--verbose={0}", options.Verbose);
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DicConsole.DebugWriteLine("Extract-Files command", "--input={0}", options.InputFile);
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DicConsole.DebugWriteLine("Extract-Files command", "--xattrs={0}", options.Xattrs);
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DicConsole.DebugWriteLine("Extract-Files command", "--output={0}", options.OutputDir);
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FiltersList filtersList = new FiltersList();
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Filter inputFilter = filtersList.GetFilter(options.InputFile);
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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;
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}
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PluginBase plugins = new PluginBase();
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plugins.RegisterAllPlugins();
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List<string> id_plugins;
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Filesystem _plugin;
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ImagePlugin _imageFormat;
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Errno error;
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try
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{
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_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;
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}
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else
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{
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if(options.Verbose)
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DicConsole.VerboseWriteLine("Image format identified by {0} ({1}).", _imageFormat.Name, _imageFormat.PluginUUID);
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else
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DicConsole.WriteLine("Image format identified by {0}.", _imageFormat.Name);
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}
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if(Directory.Exists(options.OutputDir) || File.Exists(options.OutputDir))
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{
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DicConsole.ErrorWriteLine("Destination exists, aborting.");
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return;
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}
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Directory.CreateDirectory(options.OutputDir);
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try
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{
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if(!_imageFormat.OpenImage(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;
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}
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DicConsole.DebugWriteLine("Extract-Files command", "Correctly opened image file.");
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DicConsole.DebugWriteLine("Extract-Files command", "Image without headers is {0} bytes.", _imageFormat.GetImageSize());
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DicConsole.DebugWriteLine("Extract-Files command", "Image has {0} sectors.", _imageFormat.GetSectors());
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DicConsole.DebugWriteLine("Extract-Files command", "Image identifies disk type as {0}.", _imageFormat.GetMediaType());
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Core.Statistics.AddMediaFormat(_imageFormat.GetImageFormat());
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Core.Statistics.AddMedia(_imageFormat.ImageInfo.mediaType, false);
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Core.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;
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}
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List<CommonTypes.Partition> partitions = new List<CommonTypes.Partition>();
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string partition_scheme = "";
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// TODO: Solve possibility of multiple partition schemes (CUE + MBR, MBR + RDB, CUE + APM, etc)
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foreach(PartPlugin _partplugin in plugins.PartPluginsList.Values)
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{
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List<CommonTypes.Partition> _partitions;
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if(_partplugin.GetInformation(_imageFormat, out _partitions))
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{
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partition_scheme = _partplugin.Name;
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partitions.AddRange(_partitions);
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Core.Statistics.AddPartition(_partplugin.Name);
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}
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}
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if(_imageFormat.ImageHasPartitions())
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{
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partition_scheme = _imageFormat.GetImageFormat();
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partitions.AddRange(_imageFormat.GetPartitions());
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}
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if(partition_scheme == "")
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DicConsole.DebugWriteLine("Extract-Files command", "No partitions found");
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else
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{
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DicConsole.WriteLine("Partition scheme identified as {0}", partition_scheme);
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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].PartitionSequence);
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DicConsole.WriteLine("Identifying filesystem on partition");
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IdentifyFilesystems(_imageFormat, out id_plugins, partitions[i].PartitionStartSector, partitions[i].PartitionStartSector + partitions[i].PartitionSectors);
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if(id_plugins.Count == 0)
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DicConsole.WriteLine("Filesystem not identified");
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else if(id_plugins.Count > 1)
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{
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DicConsole.WriteLine(string.Format("Identified by {0} plugins", id_plugins.Count));
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foreach(string plugin_name in id_plugins)
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{
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if(plugins.PluginsList.TryGetValue(plugin_name, out _plugin))
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{
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DicConsole.WriteLine(string.Format("As identified by {0}.", _plugin.Name));
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Filesystem fs = (Filesystem)_plugin.GetType().GetConstructor(new Type[] { typeof(ImagePlugin), typeof(ulong), typeof(ulong) }).Invoke(new object[] { _imageFormat, partitions[i].PartitionStartSector, partitions[i].PartitionStartSector + partitions[i].PartitionSectors });
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error = fs.Mount(options.Debug);
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if(error == Errno.NoError)
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{
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List<string> rootDir = new List<string>();
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error = fs.ReadDir("/", ref rootDir);
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if(error == Errno.NoError)
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{
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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}
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Core.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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else
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{
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plugins.PluginsList.TryGetValue(id_plugins[0], out _plugin);
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DicConsole.WriteLine(string.Format("Identified by {0}.", _plugin.Name));
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Filesystem fs = (Filesystem)_plugin.GetType().GetConstructor(new Type[] { typeof(ImagePlugin), typeof(ulong), typeof(ulong) }).Invoke(new object[] { _imageFormat, partitions[i].PartitionStartSector, partitions[i].PartitionStartSector + partitions[i].PartitionSectors });
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error = fs.Mount(options.Debug);
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if(error == Errno.NoError)
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{
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List<string> rootDir = new List<string>();
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error = fs.ReadDir("/", ref rootDir);
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if(error == Errno.NoError)
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{
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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}
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Core.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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IdentifyFilesystems(_imageFormat, out id_plugins, 0, _imageFormat.GetSectors() - 1);
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if(id_plugins.Count == 0)
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DicConsole.WriteLine("Filesystem not identified");
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else if(id_plugins.Count > 1)
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{
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DicConsole.WriteLine(string.Format("Identified by {0} plugins", id_plugins.Count));
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foreach(string plugin_name in id_plugins)
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{
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if(plugins.PluginsList.TryGetValue(plugin_name, out _plugin))
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{
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DicConsole.WriteLine(string.Format("As identified by {0}.", _plugin.Name));
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Filesystem fs = (Filesystem)_plugin.GetType().GetConstructor(new Type[] { typeof(ImagePlugin), typeof(ulong), typeof(ulong) }).Invoke(new object[] { _imageFormat, (ulong)0, _imageFormat.GetSectors() - 1 });
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error = fs.Mount(options.Debug);
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if(error == Errno.NoError)
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{
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List<string> rootDir = new List<string>();
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error = fs.ReadDir("/", ref rootDir);
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if(error == Errno.NoError)
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{
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foreach(string entry in rootDir)
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DicConsole.WriteLine("{0}", entry);
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}
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Core.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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else
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{
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plugins.PluginsList.TryGetValue(id_plugins[0], out _plugin);
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DicConsole.WriteLine(string.Format("Identified by {0}.", _plugin.Name));
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Filesystem fs = (Filesystem)_plugin.GetType().GetConstructor(new Type[] { typeof(ImagePlugin), typeof(ulong), typeof(ulong) }).Invoke(new object[] { _imageFormat, (ulong)0, _imageFormat.GetSectors() - 1 });
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error = fs.Mount(options.Debug);
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if(error == Errno.NoError)
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{
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List<string> rootDir = new List<string>();
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error = fs.ReadDir("/", ref rootDir);
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if(error == Errno.NoError)
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{
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foreach(string entry in rootDir)
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{
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FileEntryInfo stat = new FileEntryInfo();
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string outputPath;
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FileStream outputFile;
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string volumeName;
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if(string.IsNullOrEmpty(fs.XmlFSType.VolumeName))
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volumeName = "NO NAME";
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else
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volumeName = fs.XmlFSType.VolumeName;
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error = fs.Stat(entry, ref stat);
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if(error == Errno.NoError)
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{
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if(options.Xattrs)
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{
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List<string> xattrs = new List<string>();
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error = fs.ListXAttr(entry, ref xattrs);
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if(error == Errno.NoError)
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{
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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(entry, xattr, ref xattrBuf);
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if(error == Errno.NoError)
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{
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Directory.CreateDirectory(Path.Combine(options.OutputDir,
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fs.XmlFSType.Type,
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volumeName,
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".xattrs",
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xattr));
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outputPath = Path.Combine(options.OutputDir,
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fs.XmlFSType.Type,
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volumeName,
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".xattrs",
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xattr,
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entry);
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if(!File.Exists(outputPath))
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{
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outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite,
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FileShare.None);
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outputFile.Write(xattrBuf, 0, xattrBuf.Length);
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outputFile.Close();
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FileInfo fi = new FileInfo(outputPath);
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
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try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { }
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try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { }
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try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { }
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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DicConsole.WriteLine("Written {0} bytes of xattr {1} from file {2} to {3}",
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xattrBuf.Length, xattr, entry, outputPath);
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}
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else
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DicConsole.ErrorWriteLine("Cannot write xattr {0} for {1}, output exists",
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xattr, entry);
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}
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}
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}
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}
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Directory.CreateDirectory(Path.Combine(options.OutputDir,
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fs.XmlFSType.Type,
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volumeName));
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outputPath = Path.Combine(options.OutputDir,
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fs.XmlFSType.Type,
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volumeName,
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entry);
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if(!File.Exists(outputPath))
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{
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byte[] outBuf = new byte[0];
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error = fs.Read(entry, 0, stat.Length, ref outBuf);
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if(error == Errno.NoError)
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{
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outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite,
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FileShare.None);
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outputFile.Write(outBuf, 0, outBuf.Length);
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outputFile.Close();
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FileInfo fi = new FileInfo(outputPath);
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
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try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { }
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try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { }
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try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { }
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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DicConsole.WriteLine("Written {0} bytes of file {1} to {2}",
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outBuf.Length, entry, outputPath);
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}
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else
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DicConsole.ErrorWriteLine("Error {0} reading file {1}", error, entry);
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}
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else
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DicConsole.ErrorWriteLine("Cannot write file {0}, output exists", entry);
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}
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else
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DicConsole.ErrorWriteLine("Error reading file {0}", entry);
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}
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}
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else
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DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString());
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Core.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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catch(Exception ex)
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{
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DicConsole.ErrorWriteLine(string.Format("Error reading file: {0}", ex.Message));
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DicConsole.DebugWriteLine("Extract-Files command", ex.StackTrace);
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}
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Core.Statistics.AddCommand("ls");
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}
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static void IdentifyFilesystems(ImagePlugin imagePlugin, out List<string> id_plugins, ulong partitionStart, ulong partitionEnd)
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{
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id_plugins = new List<string>();
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PluginBase plugins = new PluginBase();
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plugins.RegisterAllPlugins();
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foreach(Filesystem _plugin in plugins.PluginsList.Values)
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{
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if(_plugin.Identify(imagePlugin, partitionStart, partitionEnd))
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id_plugins.Add(_plugin.Name.ToLower());
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}
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}
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}
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}
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