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Fixed GameVersion detection

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This commit is contained in:
Eris 2021-05-11 22:31:13 +02:00
parent e03f30f975
commit b842cfe53c
1 changed files with 25 additions and 9 deletions
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34
ModAssistant/Classes/Utils.cs
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@ -235,19 +235,35 @@ namespace ModAssistant
public static string GetVersion()
{
string filename = Path.Combine(App.BeatSaberInstallDirectory, "Beat Saber_Data", "globalgamemanagers");
using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read))
using (var stream = File.OpenRead(filename))
using (var reader = new BinaryReader(stream, Encoding.UTF8))
{
byte[] file = File.ReadAllBytes(filename);
byte[] bytes = new byte[32];
const string key = "public.app-category.games";
int pos = 0;
fs.Read(file, 0, Convert.ToInt32(fs.Length));
fs.Close();
int index = Encoding.UTF8.GetString(file).IndexOf("public.app-category.games") + 136;
while (stream.Position < stream.Length && pos < key.Length)
{
if (reader.ReadByte() == key[pos]) pos++;
else pos = 0;
}
Array.Copy(file, index, bytes, 0, 32);
string version = Encoding.UTF8.GetString(bytes).Trim(Constants.IllegalCharacters);
if (stream.Position == stream.Length) // we went through the entire stream without finding the key
throw new KeyNotFoundException("Could not find key '" + key + "' in " + filename);
return version;
while (stream.Position < stream.Length)
{
var current = (char)reader.ReadByte();
if (char.IsDigit(current))
break;
}
var rewind = -sizeof(int) - sizeof(byte);
stream.Seek(rewind, SeekOrigin.Current); // rewind to the string length
var strlen = reader.ReadInt32();
var strbytes = reader.ReadBytes(strlen);
return Encoding.UTF8.GetString(strbytes);
}
}