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fix: prevent server crash on unsupported Shift-JIS characters (#116)

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UTF8ToSJIS panicked when encountering characters outside the Shift-JIS
range (emoji, Lenny faces, cuneiform, etc.), crashing the server when
such characters were sent via the Discord relay channel.

Replace the panic with graceful filtering that drops unmappable runes
and preserves valid content. Also fix ToNGWord index-out-of-range panic
on empty encoder output.

Closes #116
This commit is contained in:
Houmgaor
2026-02-16 18:16:42 +01:00
parent 7689bc2ee9
commit 9b69564c49
3 changed files with 86 additions and 2 deletions
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@@ -38,6 +38,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Fixed double-save bug in logout flow that caused unnecessary database operations
- Fixed save operation ordering - now saves data before session cleanup instead of after
- Fixed stale transmog/armor appearance shown to other players - user binary cache now invalidated when plate data is saved
- Fixed server crash when Discord relay receives messages with unsupported Shift-JIS characters (emoji, Lenny faces, cuneiform, etc.)
### Security