testing/cms.h

// Copyright 2026 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#ifndef THIRD_PARTY_CREDENTIO_TESTING_CMS_H_
#define THIRD_PARTY_CREDENTIO_TESTING_CMS_H_

#include <cstdint>
#include <optional>
#include <string>
#include <vector>

#include "absl/functional/function_ref.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "absl/time/time.h"
#include "absl/types/span.h"
#include "openssl/base.h"

namespace credentio_testing {

struct SignedCmsOptions {
  std::optional<absl::Time> signing_time = std::nullopt;
  bool include_user_certificate = false;
  absl::Span<const X509* const> ca_certificates = {};
  absl::string_view extra_signed_attributes = "";
  bool is_time_stamp_token = false;
};

// Creates a minimal signed CMS structure (SignedData) wrapping the given
// contents. This is a simplified implementation intended for testing and
// internal use.
absl::StatusOr<std::string> CreateSignedCms(
    absl::Span<const absl::string_view> contents,
    const X509& signer_certificate,
    absl::FunctionRef<absl::StatusOr<std::vector<uint8_t>>(absl::string_view)>
        sign_callback,
    const SignedCmsOptions& options = {});

}  // namespace credentio_testing

#endif  // THIRD_PARTY_CREDENTIO_TESTING_CMS_H_