mirror of
https://github.com/aaru-dps/Aaru.git
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466 lines
14 KiB
C#
466 lines
14 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Write.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Writes Basic Lisa Utility disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2023 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.Diagnostics.CodeAnalysis;
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using System.IO;
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using System.Linq;
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using System.Text;
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using Aaru.CommonTypes;
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using Aaru.CommonTypes.AaruMetadata;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Structs;
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using Aaru.Decoders;
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using Aaru.Helpers;
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using Version = Aaru.CommonTypes.Interop.Version;
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namespace Aaru.Images;
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[SuppressMessage("ReSharper", "UnusedType.Global")]
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public sealed partial class Blu
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{
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#region IWritableImage Members
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/// <inheritdoc />
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint sectorSize)
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{
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if(sectorSize != 512)
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{
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ErrorMessage = Localization.Unsupported_sector_size;
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return false;
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}
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if(sectors > 0xFFFFFF)
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{
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ErrorMessage = Localization.Too_many_sectors;
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return false;
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}
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if(!SupportedMediaTypes.Contains(mediaType))
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{
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ErrorMessage = string.Format(Localization.Unsupported_media_format_0, mediaType);
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return false;
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}
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_imageInfo = new ImageInfo
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{
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MediaType = mediaType,
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SectorSize = sectorSize,
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Sectors = sectors
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};
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try
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{
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_writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
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}
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catch(IOException e)
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{
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ErrorMessage = string.Format(Localization.Could_not_create_new_image_file_exception_0, e.Message);
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return false;
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}
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IsWriting = true;
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ErrorMessage = null;
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return true;
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}
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/// <inheritdoc />
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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ErrorMessage = Localization.Writing_media_tags_is_not_supported;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSector(byte[] data, ulong sectorAddress)
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{
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int longSectorSize = _imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(data.Length != 512)
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{
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ErrorMessage = Localization.Incorrect_data_size;
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return false;
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}
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if(sectorAddress >= _imageInfo.Sectors)
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{
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ErrorMessage = Localization.Tried_to_write_past_image_size;
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return false;
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}
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_writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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_writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
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{
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int longSectorSize = _imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(data.Length % 512 != 0)
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{
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ErrorMessage = Localization.Incorrect_data_size;
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return false;
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}
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if(sectorAddress + length > _imageInfo.Sectors)
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{
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ErrorMessage = Localization.Tried_to_write_past_image_size;
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return false;
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}
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_writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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_writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool WriteSectorLong(byte[] data, ulong sectorAddress)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(sectorAddress >= _imageInfo.Sectors)
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{
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ErrorMessage = Localization.Tried_to_write_past_image_size;
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return false;
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}
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int longSectorSize = _imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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byte[] oldTag;
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byte[] newTag;
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switch(data.Length - 512)
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{
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// Sony tag, convert to Profile
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case 12 when longSectorSize == 532:
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oldTag = new byte[12];
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Array.Copy(data, 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Sony tag, convert to Priam
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case 12:
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oldTag = new byte[12];
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Array.Copy(data, 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Profile tag, copy to Profile
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case 20 when longSectorSize == 532:
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newTag = new byte[20];
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Array.Copy(data, 512, newTag, 0, 20);
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break;
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// Profile tag, convert to Priam
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case 20:
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oldTag = new byte[20];
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Array.Copy(data, 512, oldTag, 0, 20);
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newTag = LisaTag.DecodeProfileTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Priam tag, convert to Profile
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case 24 when longSectorSize == 532:
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oldTag = new byte[24];
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Array.Copy(data, 512, oldTag, 0, 24);
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newTag = LisaTag.DecodePriamTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Priam tag, copy to Priam
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case 24:
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newTag = new byte[24];
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Array.Copy(data, 512, newTag, 0, 24);
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break;
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case 0:
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newTag = null;
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break;
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default:
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ErrorMessage = Localization.Incorrect_data_size;
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return false;
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}
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newTag ??= new byte[longSectorSize - 512];
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_writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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_writingStream.Write(data, 0, 512);
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_writingStream.Write(newTag, 0, newTag.Length);
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(sectorAddress + length > _imageInfo.Sectors)
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{
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ErrorMessage = Localization.Tried_to_write_past_image_size;
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return false;
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}
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int longSectorSize = _imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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long givenSectorSize = data.Length / length;
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switch(givenSectorSize)
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{
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case 536:
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case 532:
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case 524:
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case 512:
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break;
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default:
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ErrorMessage = Localization.Incorrect_data_size;
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return false;
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}
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for(uint i = 0; i < length; i++)
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{
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byte[] oldTag;
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byte[] newTag;
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switch(givenSectorSize - 512)
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{
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// Sony tag, convert to Profile
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case 12 when longSectorSize == 532:
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oldTag = new byte[12];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Sony tag, convert to Priam
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case 12:
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oldTag = new byte[12];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Profile tag, copy to Profile
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case 20 when longSectorSize == 532:
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newTag = new byte[20];
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Array.Copy(data, givenSectorSize * i + 512, newTag, 0, 20);
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break;
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// Profile tag, convert to Priam
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case 20:
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oldTag = new byte[20];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 20);
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newTag = LisaTag.DecodeProfileTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Priam tag, convert to Profile
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case 24 when longSectorSize == 532:
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oldTag = new byte[24];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 24);
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newTag = LisaTag.DecodePriamTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Priam tag, copy to Priam
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case 24:
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newTag = new byte[24];
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Array.Copy(data, givenSectorSize * i + 512, newTag, 0, 24);
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break;
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case 0:
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newTag = null;
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break;
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default:
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ErrorMessage = Localization.Incorrect_data_size;
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return false;
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}
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newTag ??= new byte[longSectorSize - 512];
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_writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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_writingStream.Write(data, (int)(givenSectorSize * i), 512);
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_writingStream.Write(newTag, 0, newTag.Length);
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}
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool Close()
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Image_is_not_opened_for_writing;
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return false;
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}
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byte[] markerTag = Encoding.UTF8.GetBytes("Aaru " + Version.GetVersion());
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byte[] driveName;
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var driveType = new byte[3];
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byte[] driveBlocks = BigEndianBitConverter.GetBytes((uint)_imageInfo.Sectors);
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int longSectorSize = _imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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byte[] blockSize = BigEndianBitConverter.GetBytes((ushort)longSectorSize);
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switch(_imageInfo.MediaType)
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{
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case MediaType.AppleProfile when _imageInfo.Sectors == 0x4C00:
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driveName = Encoding.ASCII.GetBytes(PROFILE10_NAME);
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break;
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case MediaType.AppleWidget when _imageInfo.Sectors == 0x4C00:
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driveType[1] = 0x01;
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driveName = Encoding.ASCII.GetBytes(PROFILE10_NAME);
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break;
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case MediaType.PriamDataTower when _imageInfo.Sectors == 0x22C7C:
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driveType[1] = 0xFF;
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driveName = Encoding.ASCII.GetBytes(PRIAM_NAME);
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break;
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default:
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driveName = Encoding.ASCII.GetBytes(PROFILE_NAME);
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break;
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}
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_writingStream.Seek(0, SeekOrigin.Begin);
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_writingStream.Write(driveName, 0, driveName.Length >= 0xD ? 0xD : driveName.Length);
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_writingStream.Seek(0xD, SeekOrigin.Begin);
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_writingStream.Write(driveType, 0, 3);
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_writingStream.Seek(0x12, SeekOrigin.Begin);
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_writingStream.Write(driveBlocks, 1, 3);
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_writingStream.Seek(0x15, SeekOrigin.Begin);
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_writingStream.Write(blockSize, 1, 2);
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_writingStream.Seek(512, SeekOrigin.Begin);
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_writingStream.Write(markerTag, 0,
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markerTag.Length >= longSectorSize - 512 ? longSectorSize - 512 : markerTag.Length);
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_writingStream.Flush();
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_writingStream.Close();
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IsWriting = false;
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool SetImageInfo(ImageInfo imageInfo) => true;
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/// <inheritdoc />
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public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack) => true;
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/// <inheritdoc />
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public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool SetDumpHardware(List<DumpHardware> dumpHardware) => false;
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/// <inheritdoc />
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public bool SetMetadata(Metadata metadata) => false;
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#endregion
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} |