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76 lines
3.7 KiB
C++
76 lines
3.7 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/DirectiveOperations.h>
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#include <LibWeb/ContentSecurityPolicy/Directives/Names.h>
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#include <LibWeb/ContentSecurityPolicy/Directives/ScriptSourceElementDirective.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
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namespace Web::ContentSecurityPolicy::Directives {
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GC_DEFINE_ALLOCATOR(ScriptSourceElementDirective);
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ScriptSourceElementDirective::ScriptSourceElementDirective(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/#script-src-elem-pre-request
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Directive::Result ScriptSourceElementDirective::pre_request_check(GC::Heap&, GC::Ref<Fetch::Infrastructure::Request const> request, GC::Ref<Policy const> policy) const
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{
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// 1. Let name be the result of executing § 6.8.1 Get the effective directive for request on request.
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auto name = get_the_effective_directive_for_request(request);
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// 2. If the result of executing § 6.8.4 Should fetch directive execute on name, script-src-elem and policy is "No",
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// return "Allowed".
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if (should_fetch_directive_execute(name, Names::ScriptSrcElem, policy) == ShouldExecute::No)
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return Result::Allowed;
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// 3. Return the result of executing § 6.7.1.1 Script directives pre-request check on request, this directive,
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// and policy.
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return script_directives_pre_request_check(request, *this, policy);
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}
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// https://w3c.github.io/webappsec-csp/#script-src-elem-post-request
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Directive::Result ScriptSourceElementDirective::post_request_check(GC::Heap&, GC::Ref<Fetch::Infrastructure::Request const> request, GC::Ref<Fetch::Infrastructure::Response const> response, GC::Ref<Policy const> policy) const
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{
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// 1. Let name be the result of executing § 6.8.1 Get the effective directive for request on request.
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auto name = get_the_effective_directive_for_request(request);
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// 2. If the result of executing § 6.8.4 Should fetch directive execute on name, script-src-elem and policy is "No",
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// return "Allowed".
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if (should_fetch_directive_execute(name, Names::ScriptSrcElem, policy) == ShouldExecute::No)
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return Result::Allowed;
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// 3. Return the result of executing § 6.7.1.2 Script directives post-request check on request, response, this
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// directive, and policy.
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return script_directives_post_request_check(request, response, *this, policy);
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}
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// https://w3c.github.io/webappsec-csp/#script-src-elem-inline
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Directive::Result ScriptSourceElementDirective::inline_check(GC::Heap&, GC::Ptr<DOM::Element const> element, InlineType type, GC::Ref<Policy const> policy, String const& source) const
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{
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// 1. Assert: element is not null or type is "navigation".
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VERIFY(element || type == InlineType::Navigation);
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// 2. Let name be the result of executing § 6.8.2 Get the effective directive for inline checks on type.
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auto name = get_the_effective_directive_for_inline_checks(type);
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// 3. If the result of executing § 6.8.4 Should fetch directive execute on name, script-src-elem and policy is "No",
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// return "Allowed".
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if (should_fetch_directive_execute(name, Names::ScriptSrcElem, policy) == ShouldExecute::No)
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return Result::Allowed;
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// 4. If the result of executing § 6.7.3.3 Does element match source list for type and source? on element, this
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// directive’s value, type, and source is "Does Not Match", return "Blocked".
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if (does_element_match_source_list_for_type_and_source(element, value(), type, source) == MatchResult::DoesNotMatch)
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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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