// MinIO C++ Library for Amazon S3 Compatible Cloud Storage
// Copyright 2022-2024 MinIO, Inc.
//
// 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
//
//     http://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.
//
// SPDX-License-Identifier: Apache-2.0

#ifndef MINIO_CPP_SIGNER_H_INCLUDED
#define MINIO_CPP_SIGNER_H_INCLUDED

#include <string>

#include "http.h"
#include "utils.h"

namespace minio::signer {

std::string GetScope(const utils::UtcTime& time, const std::string& region,
                     const std::string& service_name);
std::string GetCanonicalRequestHash(const std::string& method,
                                    const std::string& uri,
                                    const std::string& query_string,
                                    const std::string& headers,
                                    const std::string& signed_headers,
                                    const std::string& content_sha256);
std::string GetStringToSign(const utils::UtcTime& date,
                            const std::string& scope,
                            const std::string& canonical_request_hash);
std::string HmacHash(std::string_view key, std::string_view data);
std::string GetSigningKey(const std::string& secret_key,
                          const utils::UtcTime& date, std::string_view region,
                          std::string_view service_name);
std::string GetSignature(std::string_view signing_key,
                         std::string_view string_to_sign);
std::string GetAuthorization(const std::string& access_key,
                             const std::string& scope,
                             const std::string& signed_headers,
                             const std::string& signature);
utils::Multimap SignV4(const std::string& service_name, http::Method method,
                       const std::string& uri, const std::string& region,
                       utils::Multimap& headers, utils::Multimap query_params,
                       const std::string& access_key,
                       const std::string& secret_key,
                       const std::string& content_sha256,
                       const utils::UtcTime& date);
utils::Multimap SignV4S3(http::Method method, const std::string& uri,
                         const std::string& region, utils::Multimap& headers,
                         utils::Multimap query_params,
                         const std::string& access_key,
                         const std::string& secret_key,
                         const std::string& content_sha256,
                         const utils::UtcTime& date);
utils::Multimap SignV4STS(http::Method method, const std::string& uri,
                          const std::string& region, utils::Multimap& headers,
                          utils::Multimap query_params,
                          const std::string& access_key,
                          const std::string& secret_key,
                          const std::string& content_sha256,
                          const utils::UtcTime& date);
utils::Multimap PresignV4(http::Method method, const std::string& host,
                          const std::string& uri, const std::string& region,
                          utils::Multimap& query_params,
                          const std::string& access_key,
                          const std::string& secret_key,
                          const utils::UtcTime& date, unsigned int expires);
std::string PostPresignV4(const std::string& data,
                          const std::string& secret_key,
                          const utils::UtcTime& date,
                          const std::string& region);

}  // namespace minio::signer

#endif  // MINIO_CPP_SIGNER_H_INCLUDED