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Code Issues 295 Packages Projects Releases 20 Wiki Activity

Improve Inno Setup detection (#37)

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* Improve Inno Setup detection

* Split "GetVersion"

* Remove unneeded check

* Make version detection more robust

* Add Unicode version detection

* Address review comments
This commit is contained in:
SilasLaspada
2021-06-05 12:46:04 -06:00
committed by GitHub
parent 9a931eae67
commit b76d09aa20
1 changed files with 39 additions and 28 deletions
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67
BurnOutSharp/PackerType/InnoSetup.cs
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@@ -2,6 +2,7 @@
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using BurnOutSharp.Matching;
namespace BurnOutSharp.PackerType
@@ -13,10 +14,18 @@ namespace BurnOutSharp.PackerType
/// </summary>
private static readonly List<ContentMatchSet> contentMatchers = new List<ContentMatchSet>
{
// Inno Setup Setup Data (
new ContentMatchSet(new byte?[]
{
0x49, 0x6E, 0x6E, 0x6F, 0x20, 0x53, 0x65, 0x74,
0x75, 0x70, 0x20, 0x53, 0x65, 0x74, 0x75, 0x70,
0x20, 0x44, 0x61, 0x74, 0x61, 0x20, 0x28
}, GetVersion, "Inno Setup"),
// Inno
new ContentMatchSet(
new ContentMatch(new byte?[] { 0x49, 0x6E, 0x6E, 0x6F }, start: 0x30, end: 0x31),
GetVersion,
GetOldVersion,
"Inno Setup"),
};
@@ -49,39 +58,41 @@ namespace BurnOutSharp.PackerType
return null;
}
public static string GetOldVersion(string file, byte[] fileContent, List<int> positions)
{
var matchers = new List<ContentMatchSet>
{
// "rDlPtS02" + (char)0x87 + "eVx"
new ContentMatchSet(new byte?[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x32, 0x87, 0x65, 0x56, 0x78 }, "1.2.16 or earlier"),
};
string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, false);
return match ?? "Unknown 1.X";
}
public static string GetVersion(string file, byte[] fileContent, List<int> positions)
{
byte[] signature = new ArraySegment<byte>(fileContent, 0x30, 12).ToArray();
try
{
int index = positions[0];
index += 23;
// "rDlPtS02" + (char)0x87 + "eVx"
if (signature.SequenceEqual( new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x32, 0x87, 0x65, 0x56, 0x78 }))
return "1.2.10";
var versionBytes = new ReadOnlySpan<byte>(fileContent, index, 16).ToArray();
var onlyVersion = versionBytes.TakeWhile(b => b != ')').ToArray();
// "rDlPtS04" + (char)0x87 + "eVx"
else if (signature.SequenceEqual(new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x34, 0x87, 0x65, 0x56, 0x78 }))
return "4.0.0";
index += onlyVersion.Length + 2;
var unicodeBytes = new ReadOnlySpan<byte>(fileContent, index, 3).ToArray();
string version = Encoding.ASCII.GetString(onlyVersion);
// "rDlPtS05" + (char)0x87 + "eVx"
else if (signature.SequenceEqual(new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x35, 0x87, 0x65, 0x56, 0x78 }))
return "4.0.3";
if (unicodeBytes.SequenceEqual(new byte[] { 0x28, 0x75, 0x29 }))
return (version + " (Unicode)");
// "rDlPtS06" + (char)0x87 + "eVx"
else if (signature.SequenceEqual(new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x36, 0x87, 0x65, 0x56, 0x78 }))
return "4.0.10";
// "rDlPtS07" + (char)0x87 + "eVx"
else if (signature.SequenceEqual(new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0x30, 0x37, 0x87, 0x65, 0x56, 0x78 }))
return "4.1.6";
// "rDlPtS" + (char)0xcd + (char)0xe6 + (char)0xd7 + "{" + (char)0x0b + "*"
else if (signature.SequenceEqual(new byte[] { 0x72, 0x44, 0x6C, 0x50, 0x74, 0x53, 0xCD, 0xE6, 0xD7, 0x7B, 0x0b, 0x2A }))
return "5.1.5";
// "nS5W7dT" + (char)0x83 + (char)0xaa + (char)0x1b + (char)0x0f + "j"
else if (signature.SequenceEqual(new byte[] { 0x6E, 0x53, 0x35, 0x57, 0x37, 0x64, 0x54, 0x83, 0xAA, 0x1B, 0x0F, 0x6A }))
return "5.1.5";
return string.Empty;
return version;
}
catch
{
return "(Unknown Version)";
}
}
}
}