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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_UNENCODED_DIGEST_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_UNENCODED_DIGEST_H_
#include <optional>
#include <vector>
#include "third_party/blink/renderer/platform/loader/fetch/integrity_metadata.h"
#include "third_party/blink/renderer/platform/platform_export.h"
namespace WTF {
class SegmentedBuffer;
} // namespace WTF
namespace blink {
class HTTPHeaderMap;
// Represent's a resource's `Unencoded-Digest` response headers.
//
// https://datatracker.ietf.org/doc/draft-pardue-http-identity-digest/
class PLATFORM_EXPORT UnencodedDigest {
public:
~UnencodedDigest() = default;
// Parses an HTTPHeaderMap, returning an `UnencodedDigest` if a valid
// `Unencoded-Digest` header is present, and `std::nullopt` otherwise.
static std::optional<UnencodedDigest> Create(const HTTPHeaderMap&);
const WTF::Vector<IntegrityMetadata>& digests() const {
return integrity_metadata_.hashes;
}
// Validates |data| against all parsed digests, returning `true` if all match,
// and `false` otherwise.
bool DoesMatch(WTF::SegmentedBuffer* data);
private:
UnencodedDigest() = default;
explicit UnencodedDigest(IntegrityMetadataSet);
IntegrityMetadataSet integrity_metadata_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_UNENCODED_DIGEST_H_
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