LibWeb/MimeSniff: Update Rar signature to match spec

Author: https://github.com/kemzeb Commit: 4e4026c89a Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5663 Reviewed-by: https://github.com/gmta ✅
2025-10-27 02:20:17 +00:00 · 2025-07-30 22:51:02 -07:00 · 2025-07-30 22:51:02 -07:00 · 4e4026c89a · 2025-07-31 14:22:38 +00:00
commit 4e4026c89a
parent 068974732f
2 changed files with 3 additions and 3 deletions
--- a/Libraries/LibWeb/MimeSniff/Resource.cpp
+++ b/Libraries/LibWeb/MimeSniff/Resource.cpp
@ -498,8 +498,8 @@ Optional<MimeType> match_an_archive_type_pattern(ReadonlyBytes input)
        // The string "PK" followed by ETX EOT, the ZIP archive signature.
        BytePatternTableRow { "\x50\x4B\x03\x04"sv, "\xFF\xFF\xFF\xFF"sv, no_ignored_bytes, "application/zip"sv },

-        // The string "Rar " followed by SUB BEL NUL, the RAR archive signature.
-        BytePatternTableRow { "\x52\x61\x72\x20\x1A\x07\x00"sv, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF"sv, no_ignored_bytes, "application/x-rar-compressed"sv },
+        // The string "Rar!" followed by SUB BEL NUL, the RAR 4.x archive signature.
+        BytePatternTableRow { "\x52\x61\x72\x21\x1A\x07\x00"sv, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF"sv, no_ignored_bytes, "application/x-rar-compressed"sv },
    };

    for (auto const& row : pattern_table) {