LibWeb: Introduce Content Security Policy policies and directives

These form the basis of Content Security Policy. A policy is a
collection of directives that are parsed from either the
Content-Security-Policy(-Report-Only) HTTP header, or the `<meta>`
element.

The directives are what restrict the operations can be performed in the
current global execution context. For example, "frame-ancestors: none"
tells us to prevent the page from being loaded in an embedded context,
such as `<iframe>`.

You can see it a bit like OpenBSD's pledge() functionality, but for the
web platform: https://man.openbsd.org/pledge.2
This commit is contained in:
Luke Wilde 2024-11-25 16:17:17 +00:00 committed by Andreas Kling
commit e34a6c86b9
Notes: github-actions[bot] 2025-03-04 13:28:21 +00:00
20 changed files with 846 additions and 3 deletions

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/*
* Copyright (c) 2025, Luke Wilde <luke@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibGC/Ptr.h>
#include <LibWeb/Forward.h>
namespace Web::ContentSecurityPolicy::Directives {
[[nodiscard]] GC::Ref<Directive> create_directive(JS::Realm&, String name, Vector<String> value);
}