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.
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2020-2021, the SerenityOS developers.
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/DOM/Document.h>
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namespace Web::CSS::Parser {
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ParsingContext::ParsingContext(JS::Realm& realm, Mode mode)
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: m_realm(realm)
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, m_mode(mode)
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{
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}
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ParsingContext::ParsingContext(DOM::Document const& document, AK::URL url, Mode mode)
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: m_realm(const_cast<JS::Realm&>(document.realm()))
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, m_document(&document)
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, m_url(move(url))
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, m_mode(mode)
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{
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}
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ParsingContext::ParsingContext(DOM::Document const& document, Mode mode)
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: m_realm(const_cast<JS::Realm&>(document.realm()))
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, m_document(&document)
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, m_url(document.url())
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, m_mode(mode)
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{
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}
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ParsingContext::ParsingContext(DOM::ParentNode& parent_node, Mode mode)
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: m_realm(parent_node.realm())
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, m_document(&parent_node.document())
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, m_url(parent_node.document().url())
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, m_mode(mode)
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{
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}
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bool ParsingContext::in_quirks_mode() const
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{
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return m_document ? m_document->in_quirks_mode() : false;
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}
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// https://www.w3.org/TR/css-values-4/#relative-urls
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AK::URL ParsingContext::complete_url(StringView relative_url) const
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{
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return m_url.complete_url(relative_url);
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}
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HTML::Window const* ParsingContext::window() const
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{
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return m_document && m_document->default_view() ? &m_document->window() : nullptr;
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}
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}
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