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LibWeb: Disallow non-ASCII font-language-override values

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This commit is contained in:
Tim Ledbetter 2025-06-14 08:47:30 +01:00 • committed by Tim Flynn
commit 64728aef6c
Notes: github-actions[bot] 2025-06-14 20:06:03 +00:00
2 changed files with 7 additions and 4 deletions
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6
Libraries/LibWeb/CSS/Parser/PropertyParsing.cpp
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@ -2622,11 +2622,15 @@ RefPtr<CSSStyleValue const> Parser::parse_font_language_override_value(TokenStre
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: Failed to parse font-language-override: unexpected trailing tokens");
return nullptr;
}
auto length = string_value.code_points().length();
auto length = string_value.bytes().size();
if (length == 0) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: Failed to parse font-language-override: <string> value is empty");
return nullptr;
}
if (!string_value.is_ascii()) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: Failed to parse font-language-override: <string> value \"{}\" contains non-ascii characters", string_value);
return nullptr;
}
if (length > 4) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: Failed to parse font-language-override: <string> value \"{}\" is too long", string_value);
return nullptr;