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Code Issues 295 Packages Projects Releases 20 Wiki Activity

Use content matching helper, part 1

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This commit is contained in:
Matt Nadareski
2021-03-21 14:30:37 -07:00
parent 7c53eaab13
commit ab07eb96ce
35 changed files with 270 additions and 216 deletions
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40
BurnOutSharp/ProtectionType/CDCheck.cs
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@@ -1,37 +1,37 @@
namespace BurnOutSharp.ProtectionType
using System.Collections.Generic;
namespace BurnOutSharp.ProtectionType
{
public class CDCheck : IContentCheck
{
/// <inheritdoc/>
public string CheckContents(string file, byte[] fileContent, bool includePosition = false)
{
// MGS CDCheck
byte?[] check = new byte?[] { 0x4D, 0x47, 0x53, 0x20, 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B };
if (fileContent.FirstPosition(check, out int position))
return "Microsoft Game Studios CD Check" + (includePosition ? $" (Index {position})" : string.Empty);
// CDCheck
check = new byte?[] { 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B };
if (fileContent.FirstPosition(check, out position))
return "Executable-Based CD Check" + (includePosition ? $" (Index {position})" : string.Empty);
var mappings = new Dictionary<byte?[], string>
{
// MGS CDCheck
[new byte?[] { 0x4D, 0x47, 0x53, 0x20, 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B }] = "Microsoft Game Studios CD Check",
return null;
// CDCheck
[new byte?[] { 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B }] = "Executable-Based CD Check",
};
return Utilities.GetContentMatches(fileContent, mappings, includePosition);
}
// These content checks are too broad to be useful
private static string CheckContentsBroad(byte[] fileContent, bool includePosition = false)
{
// GetDriveType
byte?[] check = new byte?[] { 0x47, 0x65, 0x74, 0x44, 0x72, 0x69, 0x76, 0x65, 0x54, 0x79, 0x70, 0x65 };
if (fileContent.FirstPosition(check, out int position))
return "CD Check" + (includePosition ? $" (Index {position})" : string.Empty);
var mappings = new Dictionary<byte?[], string>
{
// GetDriveType
[new byte?[] { 0x47, 0x65, 0x74, 0x44, 0x72, 0x69, 0x76, 0x65, 0x54, 0x79, 0x70, 0x65 }] = "Executable-Based CD Check",
// GetVolumeInformation
check = new byte?[] { 0x47, 0x65, 0x74, 0x56, 0x6F, 0x6C, 0x75, 0x6D, 0x65, 0x49, 0x6E, 0x66, 0x6F, 0x72, 0x6D, 0x61, 0x74, 0x69, 0x6F, 0x6E };
if (fileContent.FirstPosition(check, out position))
return "CD Check" + (includePosition ? $" (Index {position})" : string.Empty);
// GetVolumeInformation
[new byte?[] { 0x47, 0x65, 0x74, 0x56, 0x6F, 0x6C, 0x75, 0x6D, 0x65, 0x49, 0x6E, 0x66, 0x6F, 0x72, 0x6D, 0x61, 0x74, 0x69, 0x6F, 0x6E }] = "Executable-Based CD Check",
};
return null;
return Utilities.GetContentMatches(fileContent, mappings, includePosition);
}
}
}