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LibWebView: Add method to break a URL into parts for eTLD+1 highlighting

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This is meant to serve as the method all Ladybird chromes can use to
highlight the eTLD+1 substring of the URL. It uses the Public Suffix
List to break the URL into 3 parts: the scheme and subdomain, the
eTLD+1, and all remaining parts (port, path, query, etc.).
This commit is contained in:
Timothy Flynn 2023-10-17 11:42:55 -04:00 committed by Andreas Kling
parent 023309fdc4
commit 0715ba889e
Notes: sideshowbarker 2024-07-17 06:54:15 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/0715ba889e
Pull-request: https://github.com/SerenityOS/serenity/pull/21477
2 changed files with 54 additions and 1 deletions
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47
Userland/Libraries/LibWebView/URL.cpp
View file

@ -83,4 +83,51 @@ Optional<URL> sanitize_url(StringView url, Optional<StringView> search_engine, A
return result.release_value();
}
static URLParts break_file_url_into_parts(URL const& url, StringView url_string)
{
auto scheme = url_string.substring_view(0, url.scheme().bytes_as_string_view().length() + "://"sv.length());
auto path = url_string.substring_view(scheme.length());
return URLParts { scheme, path, {} };
}
static URLParts break_web_url_into_parts(URL const& url, StringView url_string)
{
auto host = MUST(url.serialized_host());
auto public_suffix = MUST(PublicSuffixData::the()->get_public_suffix(host));
if (!public_suffix.has_value())
return {};
auto public_suffix_start = url_string.find(*public_suffix);
auto public_suffix_end = public_suffix_start.value() + public_suffix->bytes_as_string_view().length();
auto scheme_and_subdomain = url_string.substring_view(0, *public_suffix_start);
scheme_and_subdomain = scheme_and_subdomain.trim("."sv, TrimMode::Right);
if (auto index = scheme_and_subdomain.find_last('.'); index.has_value())
scheme_and_subdomain = scheme_and_subdomain.substring_view(0, *index + 1);
else
scheme_and_subdomain = scheme_and_subdomain.substring_view(0, url.scheme().bytes_as_string_view().length() + "://"sv.length());
auto effective_tld_plus_one = url_string.substring_view(scheme_and_subdomain.length(), public_suffix_end - scheme_and_subdomain.length());
auto remainder = url_string.substring_view(public_suffix_end);
return URLParts { scheme_and_subdomain, effective_tld_plus_one, remainder };
}
Optional<URLParts> break_url_into_parts(StringView url_string)
{
auto url = URL::create_with_url_or_path(url_string);
if (!url.is_valid())
return {};
if (url.scheme() == "file"sv)
return break_file_url_into_parts(url, url_string);
if (url.scheme().is_one_of("http"sv, "https"sv, "gemini"sv))
return break_web_url_into_parts(url, url_string);
return {};
}
}

8
Userland/Libraries/LibWebView/URL.h
View file

@ -16,7 +16,13 @@ enum class AppendTLD {
No,
Yes,
};
Optional<URL> sanitize_url(StringView, Optional<StringView> search_engine = {}, AppendTLD = AppendTLD::No);
struct URLParts {
StringView scheme_and_subdomain;
StringView effective_tld_plus_one;
StringView remainder;
};
Optional<URLParts> break_url_into_parts(StringView url);
}