chromium/third_party/grpc/src/src/core/lib/security/credentials/external/aws_request_signer.cc

//
// Copyright 2020 gRPC authors.
//
// 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.
//
#include <grpc/support/port_platform.h>

#include "src/core/lib/security/credentials/external/aws_request_signer.h"

#include <algorithm>
#include <initializer_list>
#include <utility>
#include <vector>

#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/sha.h>

#include "absl/status/statusor.h"
#include "absl/strings/ascii.h"
#include "absl/strings/escaping.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_format.h"
#include "absl/strings/str_join.h"
#include "absl/strings/str_split.h"
#include "absl/strings/string_view.h"
#include "absl/time/clock.h"
#include "absl/time/time.h"

namespace grpc_core {

namespace {

const char kAlgorithm[] = …;
const char kDateFormat[] = …;
const char kXAmzDateFormat[] = …;

void SHA256(const std::string& str, unsigned char out[SHA256_DIGEST_LENGTH]) { … }

std::string SHA256Hex(const std::string& str) { … }

std::string HMAC(const std::string& key, const std::string& msg) { … }

}  // namespace

AwsRequestSigner::AwsRequestSigner(
    std::string access_key_id, std::string secret_access_key, std::string token,
    std::string method, std::string url, std::string region,
    std::string request_payload,
    std::map<std::string, std::string> additional_headers,
    grpc_error_handle* error)
    : … { … }

std::map<std::string, std::string> AwsRequestSigner::GetSignedRequestHeaders() { … }

}  // namespace grpc_core