h1or4dme8/osu-lazer
1
0
Fork 0
mirror of https://github.com/ppy/osu.git synced 2025-01-13 16:32:54 +08:00
Code Issues Releases Wiki Activity

Fix score encoder being dependent on current culture

Browse Source 
As it turns out, on some cultures, the "negative integer" sign is not
encoded using the U+002D HYPHEN-MINUS codepoint. For instance, Swedish
uses U+2212 MINUS SIGN instead. This was confusing the legacy decoder,
since it is correctly depending on the serialisation being
culture-independent.

To fix, ensure that the special "end replay" frame, as well as the
replay MD5 hash, are generated in a culture-invariant manner.

Thankfully the replay MD5 hash is currently being discarded in
`LegacyScoreDecoder`, so it changing in future scores should not have
any negative effect on lazer operation.
This commit is contained in:
Bartłomiej Dach 2021-12-04 17:02:39 +01:00
parent ea6766d940
commit f051720fa1
No known key found for this signature in database
GPG Key ID: BCECCD4FA41F6497
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
osu.Game/Scoring/Legacy/LegacyScoreEncoder.cs
View File

@ -46,7 +46,7 @@ namespace osu.Game.Scoring.Legacy
sw.Write(LATEST_VERSION);
sw.Write(score.ScoreInfo.BeatmapInfo.MD5Hash);
sw.Write(score.ScoreInfo.UserString);
sw.Write($"lazer-{score.ScoreInfo.UserString}-{score.ScoreInfo.Date}".ComputeMD5Hash());
sw.Write(FormattableString.Invariant($"lazer-{score.ScoreInfo.UserString}-{score.ScoreInfo.Date}").ComputeMD5Hash());
sw.Write((ushort)(score.ScoreInfo.GetCount300() ?? 0));
sw.Write((ushort)(score.ScoreInfo.GetCount100() ?? 0));
sw.Write((ushort)(score.ScoreInfo.GetCount50() ?? 0));
@ -110,7 +110,9 @@ namespace osu.Game.Scoring.Legacy
}
}
replayData.AppendFormat(@"{0}|{1}|{2}|{3},", -12345, 0, 0, 0);
// Warning: this is purposefully hardcoded as a string rather than interpolating, as in some cultures the minus sign is not encoded as the standard ASCII U+00C2 codepoint,
// which then would break decoding.
replayData.Append(@"-12345|0|0|0");
return replayData.ToString();
}
}