mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 02:08:12 +03:00
7d63b8b95f
On platinenmacher.tech there is a document without a window. During size attribute parsing the window pointer is dereferenced which causes a crash. This checks for the window to be actually there before dereferencing.
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2020-2021, the SerenityOS developers.
|
|
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
|
|
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
|
|
* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/CSS/Parser/Parser.h>
|
|
#include <LibWeb/DOM/Document.h>
|
|
|
|
namespace Web::CSS::Parser {
|
|
|
|
ParsingContext::ParsingContext(JS::Realm& realm, Mode mode)
|
|
: m_realm(realm)
|
|
, m_mode(mode)
|
|
{
|
|
}
|
|
|
|
ParsingContext::ParsingContext(DOM::Document const& document, AK::URL url, Mode mode)
|
|
: m_realm(const_cast<JS::Realm&>(document.realm()))
|
|
, m_document(&document)
|
|
, m_url(move(url))
|
|
, m_mode(mode)
|
|
{
|
|
}
|
|
|
|
ParsingContext::ParsingContext(DOM::Document const& document, Mode mode)
|
|
: m_realm(const_cast<JS::Realm&>(document.realm()))
|
|
, m_document(&document)
|
|
, m_url(document.url())
|
|
, m_mode(mode)
|
|
{
|
|
}
|
|
|
|
ParsingContext::ParsingContext(DOM::ParentNode& parent_node, Mode mode)
|
|
: m_realm(parent_node.realm())
|
|
, m_document(&parent_node.document())
|
|
, m_url(parent_node.document().url())
|
|
, m_mode(mode)
|
|
{
|
|
}
|
|
|
|
bool ParsingContext::in_quirks_mode() const
|
|
{
|
|
return m_document ? m_document->in_quirks_mode() : false;
|
|
}
|
|
|
|
// https://www.w3.org/TR/css-values-4/#relative-urls
|
|
AK::URL ParsingContext::complete_url(StringView relative_url) const
|
|
{
|
|
return m_url.complete_url(relative_url);
|
|
}
|
|
|
|
HTML::Window const* ParsingContext::window() const
|
|
{
|
|
return m_document && m_document->default_view() ? &m_document->window() : nullptr;
|
|
}
|
|
|
|
}
|