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45 lines
2.1 KiB
C++
45 lines
2.1 KiB
C++
/*
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* Copyright (c) 2024, Luke Wilde <luke@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/ContentSecurityPolicy/Directives/SandboxDirective.h>
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#include <LibWeb/ContentSecurityPolicy/Policy.h>
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#include <LibWeb/HTML/SandboxingFlagSet.h>
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namespace Web::ContentSecurityPolicy::Directives {
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GC_DEFINE_ALLOCATOR(SandboxDirective);
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SandboxDirective::SandboxDirective(String name, Vector<String> value)
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: Directive(move(name), move(value))
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{
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}
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// https://w3c.github.io/webappsec-csp/#sandbox-init
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Directive::Result SandboxDirective::initialization(Variant<GC::Ref<DOM::Document const>, GC::Ref<HTML::WorkerGlobalScope const>> context, GC::Ref<Policy const> policy) const
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{
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// 1. If policy’s disposition is not "enforce", or context is not a WorkerGlobalScope, then abort this algorithm.
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// FIXME: File spec issue that this step doesn't specify the return value. It must be allowed, because Document
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// asserts that the result of this algorithm is Allowed.
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if (policy->disposition() != Policy::Disposition::Enforce || !context.has<GC::Ref<HTML::WorkerGlobalScope const>>())
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return Result::Allowed;
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// 2. Let sandboxing flag set be a new sandboxing flag set.
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// 3. Parse a sandboxing directive using this directive’s value as the input, and sandboxing flag set as the output.
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// FIXME: File spec issue that "parse a sandboxing directive" does not accept a set of tokens.
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auto sandboxing_flag_set = HTML::parse_a_sandboxing_directive(value());
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// 4. If sandboxing flag set contains either the sandboxed scripts browsing context flag or the sandboxed origin
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// browsing context flag flags, return "Blocked".
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// Spec Note: This will need to change if we allow Workers to be sandboxed into unique origins, which seems like a
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// pretty reasonable thing to do.
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if (has_flag(sandboxing_flag_set, HTML::SandboxingFlagSet::SandboxedScripts) || has_flag(sandboxing_flag_set, HTML::SandboxingFlagSet::SandboxedOrigin))
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return Result::Blocked;
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// 5. Return "Allowed".
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return Result::Allowed;
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}
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}
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