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455 lines
22 KiB
C#
455 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 : Compare.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 'compare' 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 © 2011-2018 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.Text;
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using DiscImageChef.Console;
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using DiscImageChef.Core;
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using DiscImageChef.DiscImages;
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using DiscImageChef.Filters;
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namespace DiscImageChef.Commands
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{
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static class Compare
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{
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internal static void DoCompare(CompareOptions options)
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{
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DicConsole.DebugWriteLine("Compare command", "--debug={0}", options.Debug);
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DicConsole.DebugWriteLine("Compare command", "--verbose={0}", options.Verbose);
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DicConsole.DebugWriteLine("Compare command", "--input1={0}", options.InputFile1);
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DicConsole.DebugWriteLine("Compare command", "--input2={0}", options.InputFile2);
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FiltersList filtersList = new FiltersList();
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IFilter inputFilter1 = filtersList.GetFilter(options.InputFile1);
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filtersList = new FiltersList();
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IFilter inputFilter2 = filtersList.GetFilter(options.InputFile2);
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if(inputFilter1 == null)
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{
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DicConsole.ErrorWriteLine("Cannot open input file 1");
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return;
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}
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if(inputFilter2 == null)
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{
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DicConsole.ErrorWriteLine("Cannot open input file 2");
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return;
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}
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IMediaImage input1Format = ImageFormat.Detect(inputFilter1);
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IMediaImage input2Format = ImageFormat.Detect(inputFilter2);
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if(input1Format == null)
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{
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DicConsole.ErrorWriteLine("Input file 1 format not identified, not proceeding with comparison.");
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return;
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}
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if(options.Verbose)
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DicConsole.VerboseWriteLine("Input file 1 format identified by {0} ({1}).", input1Format.Name,
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input1Format.Id);
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else DicConsole.WriteLine("Input file 1 format identified by {0}.", input1Format.Name);
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if(input2Format == null)
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{
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DicConsole.ErrorWriteLine("Input file 2 format not identified, not proceeding with comparison.");
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return;
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}
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if(options.Verbose)
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DicConsole.VerboseWriteLine("Input file 2 format identified by {0} ({1}).", input2Format.Name,
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input2Format.Id);
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else DicConsole.WriteLine("Input file 2 format identified by {0}.", input2Format.Name);
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input1Format.Open(inputFilter1);
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input2Format.Open(inputFilter2);
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Core.Statistics.AddMediaFormat(input1Format.Format);
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Core.Statistics.AddMediaFormat(input2Format.Format);
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Core.Statistics.AddMedia(input1Format.Info.MediaType, false);
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Core.Statistics.AddMedia(input2Format.Info.MediaType, false);
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Core.Statistics.AddFilter(inputFilter1.Name);
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Core.Statistics.AddFilter(inputFilter2.Name);
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StringBuilder sb = new StringBuilder();
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if(options.Verbose)
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{
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sb.AppendLine("\tDisc image 1\tDisc image 2");
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sb.AppendLine("================================");
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sb.AppendFormat("File\t{0}\t{1}", options.InputFile1, options.InputFile2).AppendLine();
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sb.AppendFormat("Disc image format\t{0}\t{1}", input1Format.Name, input2Format.Name).AppendLine();
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}
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else
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{
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sb.AppendFormat("Disc image 1: {0}", options.InputFile1).AppendLine();
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sb.AppendFormat("Disc image 2: {0}", options.InputFile2).AppendLine();
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}
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bool imagesDiffer = false;
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ImageInfo image1Info = new ImageInfo();
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ImageInfo image2Info = new ImageInfo();
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List<Session> image1Sessions = new List<Session>();
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List<Session> image2Sessions = new List<Session>();
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Dictionary<MediaTagType, byte[]> image1DiskTags = new Dictionary<MediaTagType, byte[]>();
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Dictionary<MediaTagType, byte[]> image2DiskTags = new Dictionary<MediaTagType, byte[]>();
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image1Info.HasPartitions = input1Format.Info.HasPartitions;
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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 { image1Sessions = input1Format.Sessions; }
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catch
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{
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// ignored
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}
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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image1Info.HasSessions |= image1Sessions.Count > 0;
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image1Info.ImageSize = input1Format.Info.ImageSize;
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image1Info.Sectors = input1Format.Info.Sectors;
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image1Info.SectorSize = input1Format.Info.SectorSize;
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image1Info.CreationTime = input1Format.Info.CreationTime;
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image1Info.LastModificationTime = input1Format.Info.LastModificationTime;
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image1Info.MediaType = input1Format.Info.MediaType;
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image1Info.Version = input1Format.Info.Version;
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image1Info.Application = input1Format.Info.Application;
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image1Info.ApplicationVersion = input1Format.Info.ApplicationVersion;
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image1Info.Creator = input1Format.Info.Creator;
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image1Info.MediaTitle = input1Format.Info.MediaTitle;
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image1Info.Comments = input1Format.Info.Comments;
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image1Info.MediaManufacturer = input1Format.Info.MediaManufacturer;
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image1Info.MediaModel = input1Format.Info.MediaModel;
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image1Info.MediaSerialNumber = input1Format.Info.MediaSerialNumber;
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image1Info.MediaBarcode = input1Format.Info.MediaBarcode;
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image1Info.MediaPartNumber = input1Format.Info.MediaPartNumber;
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image1Info.MediaSequence = input1Format.Info.MediaSequence;
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image1Info.LastMediaSequence = input1Format.Info.LastMediaSequence;
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image1Info.DriveManufacturer = input1Format.Info.DriveManufacturer;
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image1Info.DriveModel = input1Format.Info.DriveModel;
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image1Info.DriveSerialNumber = input1Format.Info.DriveSerialNumber;
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image1Info.DriveFirmwareRevision = input1Format.Info.DriveFirmwareRevision;
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foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType)))
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{
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try
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{
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byte[] temparray = input1Format.ReadDiskTag(disktag);
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image1DiskTags.Add(disktag, temparray);
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}
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
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catch
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{
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// ignored
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}
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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}
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image2Info.HasPartitions = input2Format.Info.HasPartitions;
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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 { image2Sessions = input2Format.Sessions; }
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catch
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{
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// ignored
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}
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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image2Info.HasSessions |= image2Sessions.Count > 0;
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image2Info.ImageSize = input2Format.Info.ImageSize;
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image2Info.Sectors = input2Format.Info.Sectors;
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image2Info.SectorSize = input2Format.Info.SectorSize;
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image2Info.CreationTime = input2Format.Info.CreationTime;
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image2Info.LastModificationTime = input2Format.Info.LastModificationTime;
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image2Info.MediaType = input2Format.Info.MediaType;
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image2Info.Version = input2Format.Info.Version;
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image2Info.Application = input2Format.Info.Application;
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image2Info.ApplicationVersion = input2Format.Info.ApplicationVersion;
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image2Info.Creator = input2Format.Info.Creator;
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image2Info.MediaTitle = input2Format.Info.MediaTitle;
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image2Info.Comments = input2Format.Info.Comments;
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image2Info.MediaManufacturer = input2Format.Info.MediaManufacturer;
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image2Info.MediaModel = input2Format.Info.MediaModel;
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image2Info.MediaSerialNumber = input2Format.Info.MediaSerialNumber;
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image2Info.MediaBarcode = input2Format.Info.MediaBarcode;
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image2Info.MediaPartNumber = input2Format.Info.MediaPartNumber;
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image2Info.MediaSequence = input2Format.Info.MediaSequence;
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image2Info.LastMediaSequence = input2Format.Info.LastMediaSequence;
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image2Info.DriveManufacturer = input2Format.Info.DriveManufacturer;
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image2Info.DriveModel = input2Format.Info.DriveModel;
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image2Info.DriveSerialNumber = input2Format.Info.DriveSerialNumber;
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image2Info.DriveFirmwareRevision = input2Format.Info.DriveFirmwareRevision;
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foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType)))
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{
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try
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{
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byte[] temparray = input2Format.ReadDiskTag(disktag);
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image2DiskTags.Add(disktag, temparray);
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}
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
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catch
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{
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// ignored
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}
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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}
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if(options.Verbose)
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{
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sb.AppendFormat("Has partitions?\t{0}\t{1}", image1Info.HasPartitions,
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image2Info.HasPartitions).AppendLine();
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sb.AppendFormat("Has sessions?\t{0}\t{1}", image1Info.HasSessions, image2Info.HasSessions)
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.AppendLine();
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sb.AppendFormat("Image size\t{0}\t{1}", image1Info.ImageSize, image2Info.ImageSize).AppendLine();
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sb.AppendFormat("Sectors\t{0}\t{1}", image1Info.Sectors, image2Info.Sectors).AppendLine();
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sb.AppendFormat("Sector size\t{0}\t{1}", image1Info.SectorSize, image2Info.SectorSize).AppendLine();
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sb.AppendFormat("Creation time\t{0}\t{1}", image1Info.CreationTime, image2Info.CreationTime)
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.AppendLine();
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sb.AppendFormat("Last modification time\t{0}\t{1}", image1Info.LastModificationTime,
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image2Info.LastModificationTime).AppendLine();
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sb.AppendFormat("Disk type\t{0}\t{1}", image1Info.MediaType, image2Info.MediaType).AppendLine();
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sb.AppendFormat("Image version\t{0}\t{1}", image1Info.Version, image2Info.Version)
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.AppendLine();
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sb.AppendFormat("Image application\t{0}\t{1}", image1Info.Application, image2Info.Application)
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.AppendLine();
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sb.AppendFormat("Image application version\t{0}\t{1}", image1Info.ApplicationVersion,
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image2Info.ApplicationVersion).AppendLine();
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sb.AppendFormat("Image creator\t{0}\t{1}", image1Info.Creator, image2Info.Creator)
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.AppendLine();
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sb.AppendFormat("Image name\t{0}\t{1}", image1Info.MediaTitle, image2Info.MediaTitle).AppendLine();
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sb.AppendFormat("Image comments\t{0}\t{1}", image1Info.Comments, image2Info.Comments)
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.AppendLine();
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sb.AppendFormat("Disk manufacturer\t{0}\t{1}", image1Info.MediaManufacturer,
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image2Info.MediaManufacturer).AppendLine();
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sb.AppendFormat("Disk model\t{0}\t{1}", image1Info.MediaModel, image2Info.MediaModel).AppendLine();
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sb.AppendFormat("Disk serial number\t{0}\t{1}", image1Info.MediaSerialNumber,
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image2Info.MediaSerialNumber).AppendLine();
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sb.AppendFormat("Disk barcode\t{0}\t{1}", image1Info.MediaBarcode, image2Info.MediaBarcode)
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.AppendLine();
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sb.AppendFormat("Disk part no.\t{0}\t{1}", image1Info.MediaPartNumber, image2Info.MediaPartNumber)
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.AppendLine();
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sb.AppendFormat("Disk sequence\t{0}\t{1}", image1Info.MediaSequence, image2Info.MediaSequence)
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.AppendLine();
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sb.AppendFormat("Last disk on sequence\t{0}\t{1}", image1Info.LastMediaSequence,
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image2Info.LastMediaSequence).AppendLine();
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sb.AppendFormat("Drive manufacturer\t{0}\t{1}", image1Info.DriveManufacturer,
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image2Info.DriveManufacturer).AppendLine();
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sb.AppendFormat("Drive firmware revision\t{0}\t{1}", image1Info.DriveFirmwareRevision,
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image2Info.DriveFirmwareRevision).AppendLine();
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sb.AppendFormat("Drive model\t{0}\t{1}", image1Info.DriveModel, image2Info.DriveModel).AppendLine();
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sb.AppendFormat("Drive serial number\t{0}\t{1}", image1Info.DriveSerialNumber,
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image2Info.DriveSerialNumber).AppendLine();
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foreach(MediaTagType disktag in Enum.GetValues(typeof(MediaTagType)))
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sb.AppendFormat("Has {0}?\t{1}\t{2}", disktag, image1DiskTags.ContainsKey(disktag),
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image2DiskTags.ContainsKey(disktag)).AppendLine();
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}
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DicConsole.WriteLine("Comparing disk image characteristics");
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if(image1Info.HasPartitions != image2Info.HasPartitions)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image partitioned status differ");
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}
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if(image1Info.HasSessions != image2Info.HasSessions)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image session status differ");
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}
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if(image1Info.ImageSize != image2Info.ImageSize)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image size differ");
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}
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if(image1Info.Sectors != image2Info.Sectors)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image sectors differ");
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}
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if(image1Info.SectorSize != image2Info.SectorSize)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image sector size differ");
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}
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if(image1Info.CreationTime != image2Info.CreationTime)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image creation time differ");
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}
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if(image1Info.LastModificationTime != image2Info.LastModificationTime)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image last modification time differ");
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}
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if(image1Info.MediaType != image2Info.MediaType)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk type differ");
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}
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if(image1Info.Version != image2Info.Version)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image version differ");
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}
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if(image1Info.Application != image2Info.Application)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image application differ");
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}
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if(image1Info.ApplicationVersion != image2Info.ApplicationVersion)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image application version differ");
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}
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if(image1Info.Creator != image2Info.Creator)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image creator differ");
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}
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if(image1Info.MediaTitle != image2Info.MediaTitle)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image name differ");
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}
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if(image1Info.Comments != image2Info.Comments)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Image comments differ");
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}
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if(image1Info.MediaManufacturer != image2Info.MediaManufacturer)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk manufacturer differ");
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}
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if(image1Info.MediaModel != image2Info.MediaModel)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk model differ");
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}
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if(image1Info.MediaSerialNumber != image2Info.MediaSerialNumber)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk serial number differ");
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}
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if(image1Info.MediaBarcode != image2Info.MediaBarcode)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk barcode differ");
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}
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if(image1Info.MediaPartNumber != image2Info.MediaPartNumber)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk part number differ");
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}
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if(image1Info.MediaSequence != image2Info.MediaSequence)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Disk sequence differ");
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}
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if(image1Info.LastMediaSequence != image2Info.LastMediaSequence)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Last disk in sequence differ");
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}
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if(image1Info.DriveManufacturer != image2Info.DriveManufacturer)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Drive manufacturer differ");
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}
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if(image1Info.DriveModel != image2Info.DriveModel)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Drive model differ");
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}
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if(image1Info.DriveSerialNumber != image2Info.DriveSerialNumber)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Drive serial number differ");
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}
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if(image1Info.DriveFirmwareRevision != image2Info.DriveFirmwareRevision)
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{
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imagesDiffer = true;
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if(!options.Verbose) sb.AppendLine("Drive firmware revision differ");
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}
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ulong leastSectors;
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if(image1Info.Sectors < image2Info.Sectors)
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{
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imagesDiffer = true;
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leastSectors = image1Info.Sectors;
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if(!options.Verbose) sb.AppendLine("Image 2 has more sectors");
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}
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else if(image1Info.Sectors > image2Info.Sectors)
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{
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imagesDiffer = true;
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leastSectors = image2Info.Sectors;
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if(!options.Verbose) sb.AppendLine("Image 1 has more sectors");
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}
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else leastSectors = image1Info.Sectors;
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DicConsole.WriteLine("Comparing sectors...");
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for(ulong sector = 0; sector < leastSectors; sector++)
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{
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DicConsole.Write("\rComparing sector {0} of {1}...", sector + 1, leastSectors);
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try
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{
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byte[] image1Sector = input1Format.ReadSector(sector);
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byte[] image2Sector = input2Format.ReadSector(sector);
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ArrayHelpers.CompareBytes(out bool different, out bool sameSize, image1Sector, image2Sector);
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if(different)
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{
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imagesDiffer = true;
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sb.AppendFormat("Sector {0} is different", sector).AppendLine();
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}
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else if(!sameSize)
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{
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imagesDiffer = true;
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sb
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.AppendFormat("Sector {0} has different sizes ({1} bytes in image 1, {2} in image 2) but are otherwise identical",
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sector, image1Sector.LongLength, image2Sector.LongLength).AppendLine();
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}
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}
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
|
|
catch
|
|
{
|
|
// ignored
|
|
}
|
|
#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
|
|
}
|
|
|
|
DicConsole.WriteLine();
|
|
|
|
sb.AppendLine(imagesDiffer ? "Images differ" : "Images do not differ");
|
|
|
|
DicConsole.WriteLine(sb.ToString());
|
|
|
|
Core.Statistics.AddCommand("compare");
|
|
}
|
|
}
|
|
} |