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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibXML: Don't emit a parser error for failing to resolve DTD URI

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This prevented loading SVGs such as:
https://mdn.github.io/learning-area/html/multimedia-and-embedding/mdn-splash-page-finished/mdn.svg

Where the DTD is not in the hardcoded unified DTD in LibWeb. It also
prevented loading any SVG with a broken link for a DTD, which other
browsers just seem to ignore.
This commit is contained in:
MacDue 2024-03-29 23:00:27 +00:00 • committed by Andreas Kling
commit d2f971a919
Notes: sideshowbarker 2024-07-17 09:48:50 +09:00
1 changed files with 11 additions and 15 deletions
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8
Userland/Libraries/LibXML/Parser/Parser.cpp
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@ -568,16 +568,11 @@ ErrorOr<void, ParseError> Parser::parse_doctype_decl()
TRY(skip_whitespace(Required::Yes));
doctype.type = TRY(parse_name());
if (auto result = skip_whitespace(Required::Yes); !result.is_error()) {
auto id_start = m_lexer.tell();
if (auto id_result = parse_external_id(); !id_result.is_error()) {
doctype.external_id = id_result.release_value();
if (m_options.resolve_external_resource) {
auto resource_result = m_options.resolve_external_resource(doctype.external_id->system_id, doctype.external_id->public_id);
if (resource_result.is_error()) {
return parse_error(
id_start,
ByteString::formatted("Failed to resolve external subset '{}': {}", doctype.external_id->system_id.system_literal, resource_result.error()));
}
if (!resource_result.is_error()) {
StringView resolved_source = resource_result.value();
TemporaryChange source { m_source, resolved_source };
TemporaryChange lexer { m_lexer, LineTrackingLexer(m_source) };
@ -591,6 +586,7 @@ ErrorOr<void, ParseError> Parser::parse_doctype_decl()
}
}
}
}
TRY(skip_whitespace(Required::No));
if (m_lexer.consume_specific('[')) {
auto internal_subset = TRY(parse_internal_subset());