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[CHDFile, FileTools] Move static functions to FileTools

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This commit is contained in:
Matt Nadareski
2017-10-31 10:05:41 -07:00
parent 80f8778be9
commit 67b613ade9
2 changed files with 70 additions and 88 deletions
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87
SabreTools.Library/External/CHDFile.cs vendored
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@@ -1,15 +1,13 @@
using System;
using SabreTools.Library.Data;
using SabreTools.Library.Items;
using SabreTools.Library.Tools;
#if MONO
using System.IO;
#else
using BinaryReader = System.IO.BinaryReader;
using FileStream = System.IO.FileStream;
using SeekOrigin = System.IO.SeekOrigin;
using Stream = System.IO.Stream;
#endif
namespace SabreTools.Library.External
@@ -89,8 +87,6 @@ namespace SabreTools.Library.External
#endregion
#region Instance Methods
#region Constructors
/// <summary>
@@ -313,86 +309,5 @@ namespace SabreTools.Library.External
}
#endregion
#endregion // Instance Methods
#region Static Methods
#region File Information
/// <summary>
/// Get internal metadata from a CHD
/// </summary>
/// <param name="filename">Filename of possible CHD</param>
/// <returns>A Disk object with internal SHA-1 on success, null on error, empty Disk otherwise</returns>
/// <remarks>
/// Original code had a "writable" param. This is not required for metadata checking
/// </remarks>
public static DatItem GetCHDInfo(string filename)
{
FileStream fs = FileTools.TryOpenRead(filename);
DatItem datItem = GetCHDInfo(fs);
fs.Dispose();
return datItem;
}
/// <summary>
/// Get if file is a valid CHD
/// </summary>
/// <param name="filename">Filename of possible CHD</param>
/// <returns>True if a the file is a valid CHD, false otherwise</returns>
public static bool IsValidCHD(string filename)
{
DatItem datItem = GetCHDInfo(filename);
return datItem != null
&& datItem.Type == ItemType.Disk
&& ((Disk)datItem).SHA1 != null;
}
#endregion
#region Stream Information
/// <summary>
/// Get internal metadata from a CHD
/// </summary>
/// <param name="fs">Stream of possible CHD</param>
/// <returns>A Disk object with internal SHA-1 on success, null on error, empty Disk otherwise</returns>
/// <remarks>
/// Original code had a "writable" param. This is not required for metadata checking
/// </remarks>
public static DatItem GetCHDInfo(Stream fs)
{
// Create a blank Disk to populate and return
Disk datItem = new Disk();
// Get a CHD object to store the data
CHDFile chd = new CHDFile(fs);
// Get the SHA-1 from the chd
byte[] sha1 = chd.GetSHA1FromHeader();
// Set the SHA-1 of the Disk to return
datItem.SHA1 = (sha1 == null ? null : BitConverter.ToString(sha1).Replace("-", string.Empty).ToLowerInvariant());
return datItem;
}
/// <summary>
/// Get if stream is a valid CHD
/// </summary>
/// <param name="fs">Stream of possible CHD</param>
/// <returns>True if a the file is a valid CHD, false otherwise</returns>
public static bool IsValidCHD(Stream fs)
{
DatItem datItem = GetCHDInfo(fs);
return datItem != null
&& datItem.Type == ItemType.Disk
&& ((Disk)datItem).SHA1 != null;
}
#endregion
#endregion //Static Methods
}
}