// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : ExtractFiles.cs // Author(s) : Natalia Portillo // // Component : Verbs. // // --[ Description ] ---------------------------------------------------------- // // Implements the 'extract-files' verb. // // --[ License ] -------------------------------------------------------------- // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as // published by the Free Software Foundation, either version 3 of the // License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program. If not, see . // // ---------------------------------------------------------------------------- // Copyright © 2011-2018 Natalia Portillo // ****************************************************************************/ using System; using System.Collections.Generic; using System.IO; using System.Text; using DiscImageChef.CommonTypes; using DiscImageChef.Console; using DiscImageChef.Core; using DiscImageChef.DiscImages; using DiscImageChef.Filesystems; using DiscImageChef.Filters; namespace DiscImageChef.Commands { // TODO: Rewrite this, has an insane amount of repeating code ;) static class ExtractFiles { internal static void DoExtractFiles(ExtractFilesOptions options) { DicConsole.DebugWriteLine("Extract-Files command", "--debug={0}", options.Debug); DicConsole.DebugWriteLine("Extract-Files command", "--verbose={0}", options.Verbose); DicConsole.DebugWriteLine("Extract-Files command", "--input={0}", options.InputFile); DicConsole.DebugWriteLine("Extract-Files command", "--xattrs={0}", options.Xattrs); DicConsole.DebugWriteLine("Extract-Files command", "--output={0}", options.OutputDir); FiltersList filtersList = new FiltersList(); Filter inputFilter = filtersList.GetFilter(options.InputFile); if(inputFilter == null) { DicConsole.ErrorWriteLine("Cannot open specified file."); return; } Encoding encoding = null; if(options.EncodingName != null) try { encoding = Claunia.Encoding.Encoding.GetEncoding(options.EncodingName); if(options.Verbose) DicConsole.VerboseWriteLine("Using encoding for {0}.", encoding.EncodingName); } catch(ArgumentException) { DicConsole.ErrorWriteLine("Specified encoding is not supported."); return; } PluginBase plugins = new PluginBase(); plugins.RegisterAllPlugins(encoding); try { ImagePlugin imageFormat = ImageFormat.Detect(inputFilter); if(imageFormat == null) { DicConsole.WriteLine("Image format not identified, not proceeding with analysis."); return; } if(options.Verbose) DicConsole.VerboseWriteLine("Image format identified by {0} ({1}).", imageFormat.Name, imageFormat.PluginUuid); else DicConsole.WriteLine("Image format identified by {0}.", imageFormat.Name); if(Directory.Exists(options.OutputDir) || File.Exists(options.OutputDir)) { DicConsole.ErrorWriteLine("Destination exists, aborting."); return; } Directory.CreateDirectory(options.OutputDir); try { if(!imageFormat.OpenImage(inputFilter)) { DicConsole.WriteLine("Unable to open image format"); DicConsole.WriteLine("No error given"); return; } DicConsole.DebugWriteLine("Extract-Files command", "Correctly opened image file."); DicConsole.DebugWriteLine("Extract-Files command", "Image without headers is {0} bytes.", imageFormat.GetImageSize()); DicConsole.DebugWriteLine("Extract-Files command", "Image has {0} sectors.", imageFormat.GetSectors()); DicConsole.DebugWriteLine("Extract-Files command", "Image identifies disk type as {0}.", imageFormat.GetMediaType()); Core.Statistics.AddMediaFormat(imageFormat.GetImageFormat()); Core.Statistics.AddMedia(imageFormat.ImageInfo.MediaType, false); Core.Statistics.AddFilter(inputFilter.Name); } catch(Exception ex) { DicConsole.ErrorWriteLine("Unable to open image format"); DicConsole.ErrorWriteLine("Error: {0}", ex.Message); return; } List partitions = Core.Partitions.GetAll(imageFormat); Core.Partitions.AddSchemesToStats(partitions); List idPlugins; Filesystem plugin; Errno error; if(partitions.Count == 0) DicConsole.DebugWriteLine("Extract-Files command", "No partitions found"); else { DicConsole.WriteLine("{0} partitions found.", partitions.Count); for(int i = 0; i < partitions.Count; i++) { DicConsole.WriteLine(); DicConsole.WriteLine("Partition {0}:", partitions[i].Sequence); DicConsole.WriteLine("Identifying filesystem on partition"); Core.Filesystems.Identify(imageFormat, out idPlugins, partitions[i]); if(idPlugins.Count == 0) DicConsole.WriteLine("Filesystem not identified"); else if(idPlugins.Count > 1) { DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins"); foreach(string pluginName in idPlugins) if(plugins.PluginsList.TryGetValue(pluginName, out plugin)) { DicConsole.WriteLine($"As identified by {plugin.Name}."); Filesystem fs = (Filesystem)plugin .GetType().GetConstructor(new[] { typeof(ImagePlugin), typeof(Partition), typeof(Encoding) }).Invoke(new object[] {imageFormat, partitions[i], null}); error = fs.Mount(options.Debug); if(error == Errno.NoError) { List rootDir = new List(); error = fs.ReadDir("/", ref rootDir); if(error == Errno.NoError) foreach(string entry in rootDir) { FileEntryInfo stat = new FileEntryInfo(); string volumeName = string.IsNullOrEmpty(fs.XmlFSType.VolumeName) ? "NO NAME" : fs.XmlFSType.VolumeName; error = fs.Stat(entry, ref stat); if(error == Errno.NoError) { string outputPath; FileStream outputFile; if(options.Xattrs) { List xattrs = new List(); error = fs.ListXAttr(entry, ref xattrs); if(error == Errno.NoError) foreach(string xattr in xattrs) { byte[] xattrBuf = new byte[0]; error = fs.GetXattr(entry, xattr, ref xattrBuf); if(error != Errno.NoError) continue; Directory .CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr, entry); if(!File.Exists(outputPath)) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(xattrBuf, 0, xattrBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole .WriteLine("Written {0} bytes of xattr {1} from file {2} to {3}", xattrBuf.Length, xattr, entry, outputPath); } else DicConsole .ErrorWriteLine("Cannot write xattr {0} for {1}, output exists", xattr, entry); } } Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, entry); if(!File.Exists(outputPath)) { byte[] outBuf = new byte[0]; error = fs.Read(entry, 0, stat.Length, ref outBuf); if(error == Errno.NoError) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(outBuf, 0, outBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole.WriteLine("Written {0} bytes of file {1} to {2}", outBuf.Length, entry, outputPath); } else DicConsole.ErrorWriteLine("Error {0} reading file {1}", error, entry); } else DicConsole .ErrorWriteLine("Cannot write file {0}, output exists", entry); } else DicConsole.ErrorWriteLine("Error reading file {0}", entry); } else DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString()); Core.Statistics.AddFilesystem(fs.XmlFSType.Type); } else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString()); } } else { plugins.PluginsList.TryGetValue(idPlugins[0], out plugin); DicConsole.WriteLine($"Identified by {plugin.Name}."); Filesystem fs = (Filesystem)plugin .GetType().GetConstructor(new[] { typeof(ImagePlugin), typeof(Partition), typeof(Encoding) }).Invoke(new object[] {imageFormat, partitions[i], null}); error = fs.Mount(options.Debug); if(error == Errno.NoError) { List rootDir = new List(); error = fs.ReadDir("/", ref rootDir); if(error == Errno.NoError) foreach(string entry in rootDir) { FileEntryInfo stat = new FileEntryInfo(); string volumeName = string.IsNullOrEmpty(fs.XmlFSType.VolumeName) ? "NO NAME" : fs.XmlFSType.VolumeName; error = fs.Stat(entry, ref stat); if(error == Errno.NoError) { FileStream outputFile; string outputPath; if(options.Xattrs) { List xattrs = new List(); error = fs.ListXAttr(entry, ref xattrs); if(error == Errno.NoError) foreach(string xattr in xattrs) { byte[] xattrBuf = new byte[0]; error = fs.GetXattr(entry, xattr, ref xattrBuf); if(error != Errno.NoError) continue; Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr, entry); if(!File.Exists(outputPath)) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(xattrBuf, 0, xattrBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole .WriteLine("Written {0} bytes of xattr {1} from file {2} to {3}", xattrBuf.Length, xattr, entry, outputPath); } else DicConsole .ErrorWriteLine("Cannot write xattr {0} for {1}, output exists", xattr, entry); } } Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, entry); if(!File.Exists(outputPath)) { byte[] outBuf = new byte[0]; error = fs.Read(entry, 0, stat.Length, ref outBuf); if(error == Errno.NoError) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(outBuf, 0, outBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole.WriteLine("Written {0} bytes of file {1} to {2}", outBuf.Length, entry, outputPath); } else DicConsole.ErrorWriteLine("Error {0} reading file {1}", error, entry); } else DicConsole.ErrorWriteLine("Cannot write file {0}, output exists", entry); } else DicConsole.ErrorWriteLine("Error reading file {0}", entry); } else DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString()); Core.Statistics.AddFilesystem(fs.XmlFSType.Type); } else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString()); } } } Partition wholePart = new Partition { Name = "Whole device", Length = imageFormat.GetSectors(), Size = imageFormat.GetSectors() * imageFormat.GetSectorSize() }; Core.Filesystems.Identify(imageFormat, out idPlugins, wholePart); if(idPlugins.Count == 0) DicConsole.WriteLine("Filesystem not identified"); else if(idPlugins.Count > 1) { DicConsole.WriteLine($"Identified by {idPlugins.Count} plugins"); foreach(string pluginName in idPlugins) if(plugins.PluginsList.TryGetValue(pluginName, out plugin)) { DicConsole.WriteLine($"As identified by {plugin.Name}."); Filesystem fs = (Filesystem)plugin .GetType().GetConstructor(new[] { typeof(ImagePlugin), typeof(Partition), typeof(Encoding) }).Invoke(new object[] {imageFormat, wholePart, null}); error = fs.Mount(options.Debug); if(error == Errno.NoError) { List rootDir = new List(); error = fs.ReadDir("/", ref rootDir); if(error == Errno.NoError) foreach(string entry in rootDir) { FileEntryInfo stat = new FileEntryInfo(); string volumeName = string.IsNullOrEmpty(fs.XmlFSType.VolumeName) ? "NO NAME" : fs.XmlFSType.VolumeName; error = fs.Stat(entry, ref stat); if(error == Errno.NoError) { FileStream outputFile; string outputPath; if(options.Xattrs) { List xattrs = new List(); error = fs.ListXAttr(entry, ref xattrs); if(error == Errno.NoError) foreach(string xattr in xattrs) { byte[] xattrBuf = new byte[0]; error = fs.GetXattr(entry, xattr, ref xattrBuf); if(error != Errno.NoError) continue; Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr, entry); if(!File.Exists(outputPath)) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(xattrBuf, 0, xattrBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole .WriteLine("Written {0} bytes of xattr {1} from file {2} to {3}", xattrBuf.Length, xattr, entry, outputPath); } else DicConsole .ErrorWriteLine("Cannot write xattr {0} for {1}, output exists", xattr, entry); } } Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, entry); if(!File.Exists(outputPath)) { byte[] outBuf = new byte[0]; error = fs.Read(entry, 0, stat.Length, ref outBuf); if(error == Errno.NoError) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(outBuf, 0, outBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole.WriteLine("Written {0} bytes of file {1} to {2}", outBuf.Length, entry, outputPath); } else DicConsole.ErrorWriteLine("Error {0} reading file {1}", error, entry); } else DicConsole.ErrorWriteLine("Cannot write file {0}, output exists", entry); } else DicConsole.ErrorWriteLine("Error reading file {0}", entry); } else DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString()); Core.Statistics.AddFilesystem(fs.XmlFSType.Type); } else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString()); } } else { plugins.PluginsList.TryGetValue(idPlugins[0], out plugin); DicConsole.WriteLine($"Identified by {plugin.Name}."); Filesystem fs = (Filesystem)plugin .GetType().GetConstructor(new[] { typeof(ImagePlugin), typeof(Partition), typeof(Encoding) }).Invoke(new object[] {imageFormat, wholePart, null}); error = fs.Mount(options.Debug); if(error == Errno.NoError) { List rootDir = new List(); error = fs.ReadDir("/", ref rootDir); if(error == Errno.NoError) foreach(string entry in rootDir) { FileEntryInfo stat = new FileEntryInfo(); string volumeName = string.IsNullOrEmpty(fs.XmlFSType.VolumeName) ? "NO NAME" : fs.XmlFSType.VolumeName; error = fs.Stat(entry, ref stat); if(error == Errno.NoError) { string outputPath; FileStream outputFile; if(options.Xattrs) { List xattrs = new List(); error = fs.ListXAttr(entry, ref xattrs); if(error == Errno.NoError) foreach(string xattr in xattrs) { byte[] xattrBuf = new byte[0]; error = fs.GetXattr(entry, xattr, ref xattrBuf); if(error != Errno.NoError) continue; Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, ".xattrs", xattr, entry); if(!File.Exists(outputPath)) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(xattrBuf, 0, xattrBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole .WriteLine("Written {0} bytes of xattr {1} from file {2} to {3}", xattrBuf.Length, xattr, entry, outputPath); } else DicConsole .ErrorWriteLine("Cannot write xattr {0} for {1}, output exists", xattr, entry); } } Directory.CreateDirectory(Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName)); outputPath = Path.Combine(options.OutputDir, fs.XmlFSType.Type, volumeName, entry); if(!File.Exists(outputPath)) { byte[] outBuf = new byte[0]; error = fs.Read(entry, 0, stat.Length, ref outBuf); if(error == Errno.NoError) { outputFile = new FileStream(outputPath, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); outputFile.Write(outBuf, 0, outBuf.Length); outputFile.Close(); FileInfo fi = new FileInfo(outputPath); #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body try { fi.CreationTimeUtc = stat.CreationTimeUtc; } catch { // ignored } try { fi.LastWriteTimeUtc = stat.LastWriteTimeUtc; } catch { // ignored } try { fi.LastAccessTimeUtc = stat.AccessTimeUtc; } catch { // ignored } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body DicConsole.WriteLine("Written {0} bytes of file {1} to {2}", outBuf.Length, entry, outputPath); } else DicConsole.ErrorWriteLine("Error {0} reading file {1}", error, entry); } else DicConsole.ErrorWriteLine("Cannot write file {0}, output exists", entry); } else DicConsole.ErrorWriteLine("Error reading file {0}", entry); } else DicConsole.ErrorWriteLine("Error {0} reading root directory {0}", error.ToString()); Core.Statistics.AddFilesystem(fs.XmlFSType.Type); } else DicConsole.ErrorWriteLine("Unable to mount device, error {0}", error.ToString()); } } catch(Exception ex) { DicConsole.ErrorWriteLine($"Error reading file: {ex.Message}"); DicConsole.DebugWriteLine("Extract-Files command", ex.StackTrace); } Core.Statistics.AddCommand("extract-files"); } } }