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/*
* Copyright (C) 2025 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CSSValueTypes.h"
#include "LoadedFromOpaqueSource.h"
#include <wtf/text/WTFString.h>
namespace WebCore {
struct ResourceLoaderOptions;
namespace CSS {
// <cross-origin-modifier> = cross-origin( anonymous | use-credentials )
// https://drafts.csswg.org/css-values-5/#typedef-request-url-modifier-cross-origin-modifier
using URLCrossOriginParameters = Variant<
Keyword::Anonymous,
Keyword::UseCredentials
>;
using URLCrossOriginFunction = FunctionNotation<CSSValueCrossOrigin, URLCrossOriginParameters>;
// <integrity-modifier> = integrity( <string> )
// https://drafts.csswg.org/css-values-5/#typedef-request-url-modifier-integrity-modifier
using URLIntegrityParameters = String;
using URLIntegrityFunction = FunctionNotation<CSSValueIntegrity, URLIntegrityParameters>;
// <referrer-policy-modifier> = referrer-policy( no-referrer | no-referrer-when-downgrade | same-origin | origin | strict-origin | origin-when-cross-origin | strict-origin-when-cross-origin | unsafe-url )
// https://drafts.csswg.org/css-values-5/#typedef-request-url-modifier-referrer-policy-modifier
using URLReferrerPolicyParameters = Variant<
Keyword::NoReferrer,
Keyword::NoReferrerWhenDowngrade,
Keyword::SameOrigin,
Keyword::Origin,
Keyword::StrictOrigin,
Keyword::OriginWhenCrossOrigin,
Keyword::StrictOriginWhenCrossOrigin,
Keyword::UnsafeUrl
>;
using URLReferrerPolicyFunction = FunctionNotation<CSSValueReferrerPolicy, URLReferrerPolicyParameters>;
// https://drafts.csswg.org/css-values-5/#typedef-request-url-modifier
// <request-url-modifier> = <cross-origin-modifier> | <integrity-modifier> | <referrer-policy-modifier>
struct URLModifiers {
std::optional<URLCrossOriginFunction> crossOrigin { };
std::optional<URLIntegrityFunction> integrity { };
std::optional<URLReferrerPolicyFunction> referrerPolicy { };
// This is not a parsed value, but is implicit from context the modifiers were parsed with.
LoadedFromOpaqueSource loadedFromOpaqueSource { LoadedFromOpaqueSource::No };
bool operator==(const URLModifiers&) const = default;
};
template<size_t I> const auto& get(const URLModifiers& value)
{
if constexpr (I == 0)
return value.crossOrigin;
else if constexpr (I == 1)
return value.integrity;
else if constexpr (I == 2)
return value.referrerPolicy;
}
// Applies `URLModifiers` to `ResourceLoaderOptions`.
void applyModifiersToLoaderOptions(const URLModifiers&, ResourceLoaderOptions&);
} // namespace CSS
} // namespace WebCore
DEFINE_SPACE_SEPARATED_TUPLE_LIKE_CONFORMANCE(WebCore::CSS::URLModifiers, 3)
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