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e875f2b18b
WebContent process keeps session history entries for pages we have navigated away from. Before this change, those entries could prevent GC objects (e.g. PolicyContainer and its CSP PolicyList) from being collected, since the GC-allocated SHE/DocumentState held live GC::Ref pointers into the heap. By making both classes RefCounted and storing SerializedPolicyContainer instead of a live PolicyContainer, history entries no longer keep alive any GC objects. This eliminates the leak and is also a step toward moving the session history entry tree to the UI process.
114 lines
5.5 KiB
C++
114 lines
5.5 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefCounted.h>
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#include <LibURL/Origin.h>
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#include <LibURL/URL.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/POSTResource.h>
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#include <LibWeb/HTML/SerializedPolicyContainer.h>
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#include <LibWeb/ReferrerPolicy/ReferrerPolicy.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-2
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class DocumentState final : public RefCounted<DocumentState> {
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public:
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static NonnullRefPtr<DocumentState> create() { return adopt_ref(*new DocumentState()); }
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~DocumentState();
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struct NestedHistory {
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String id;
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Vector<NonnullRefPtr<SessionHistoryEntry>> entries;
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};
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enum class Client {
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Tag,
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};
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[[nodiscard]] Optional<UniqueNodeID> document_id() const { return m_document_id; }
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void set_document_id(Optional<UniqueNodeID> document_id) { m_document_id = document_id; }
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[[nodiscard]] Variant<SerializedPolicyContainer, Client> const& history_policy_container() const { return m_history_policy_container; }
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void set_history_policy_container(Variant<SerializedPolicyContainer, Client> history_policy_container) { m_history_policy_container = move(history_policy_container); }
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[[nodiscard]] Fetch::Infrastructure::Request::ReferrerType request_referrer() const { return m_request_referrer; }
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void set_request_referrer(Fetch::Infrastructure::Request::ReferrerType request_referrer) { m_request_referrer = move(request_referrer); }
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[[nodiscard]] ReferrerPolicy::ReferrerPolicy request_referrer_policy() const { return m_request_referrer_policy; }
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void set_request_referrer_policy(ReferrerPolicy::ReferrerPolicy request_referrer_policy) { m_request_referrer_policy = move(request_referrer_policy); }
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[[nodiscard]] Optional<URL::Origin> initiator_origin() const { return m_initiator_origin; }
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void set_initiator_origin(Optional<URL::Origin> initiator_origin) { m_initiator_origin = move(initiator_origin); }
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[[nodiscard]] Optional<URL::Origin> origin() const { return m_origin; }
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void set_origin(Optional<URL::Origin> origin) { m_origin = move(origin); }
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[[nodiscard]] Optional<URL::URL> const& about_base_url() const { return m_about_base_url; }
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void set_about_base_url(Optional<URL::URL> url) { m_about_base_url = move(url); }
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[[nodiscard]] Vector<NestedHistory> const& nested_histories() const { return m_nested_histories; }
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[[nodiscard]] Vector<NestedHistory>& nested_histories() { return m_nested_histories; }
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[[nodiscard]] Variant<Empty, String, POSTResource> resource() const { return m_resource; }
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void set_resource(Variant<Empty, String, POSTResource> resource) { m_resource = move(resource); }
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[[nodiscard]] bool reload_pending() const { return m_reload_pending; }
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void set_reload_pending(bool reload_pending) { m_reload_pending = reload_pending; }
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[[nodiscard]] bool ever_populated() const { return m_ever_populated; }
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void set_ever_populated(bool ever_populated) { m_ever_populated = ever_populated; }
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[[nodiscard]] String navigable_target_name() const { return m_navigable_target_name; }
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void set_navigable_target_name(String navigable_target_name) { m_navigable_target_name = navigable_target_name; }
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private:
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DocumentState();
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-document
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// NOTE: We store the document's unique ID rather than a pointer to the document, because DocumentState is
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// decoupled from the document's lifetime (Navigable owns the document directly).
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Optional<UniqueNodeID> m_document_id;
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-history-policy-container
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Variant<SerializedPolicyContainer, Client> m_history_policy_container { Client::Tag };
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-request-referrer
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Fetch::Infrastructure::Request::ReferrerType m_request_referrer { Fetch::Infrastructure::Request::Referrer::Client };
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-request-referrer-policy
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ReferrerPolicy::ReferrerPolicy m_request_referrer_policy { ReferrerPolicy::DEFAULT_REFERRER_POLICY };
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-initiator-origin
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Optional<URL::Origin> m_initiator_origin;
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-origin
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Optional<URL::Origin> m_origin;
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-about-base-url
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Optional<URL::URL> m_about_base_url = {};
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-nested-histories
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Vector<NestedHistory> m_nested_histories;
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-resource
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Variant<Empty, String, POSTResource> m_resource {};
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-reload-pending
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bool m_reload_pending { false };
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-ever-populated
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bool m_ever_populated { false };
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// https://html.spec.whatwg.org/multipage/browsing-the-web.html#document-state-nav-target-name
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String m_navigable_target_name;
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};
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}
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