ladybird/Libraries/LibWeb/HTML/HTMLBaseElement.h
Luke Wilde 82bd3d3891 LibWeb: Avoid invoking Trusted Types where avoidable
Prevents observably calling Trusted Types, which can run arbitrary JS,
cause crashes due to use of MUST and allow arbitrary JS to modify
internal elements.
2025-11-06 11:43:06 -05:00

49 lines
1.4 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/HTML/HTMLElement.h>
namespace Web::HTML {
class HTMLBaseElement final : public HTMLElement {
WEB_PLATFORM_OBJECT(HTMLBaseElement, HTMLElement);
GC_DECLARE_ALLOCATOR(HTMLBaseElement);
public:
virtual ~HTMLBaseElement() override;
String href() const;
void set_href(String const& href);
URL::URL const& frozen_base_url() const { return m_frozen_base_url; }
virtual void inserted() override;
virtual void removed_from(Node* old_parent, Node& old_root) override;
virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_) override;
private:
HTMLBaseElement(DOM::Document&, DOM::QualifiedName);
virtual void initialize(JS::Realm&) override;
virtual bool is_html_base_element() const override { return true; }
// https://html.spec.whatwg.org/multipage/semantics.html#frozen-base-url
// A base element that is the first base element with an href content attribute in a document tree has a frozen base URL.
URL::URL m_frozen_base_url;
void set_the_frozen_base_url();
};
}
namespace Web::DOM {
template<>
inline bool Node::fast_is<HTML::HTMLBaseElement>() const { return is_html_base_element(); }
}