aliyun-openapi-cpp-sdk/core/src/EcsMetadataFetcher.cc

/*
* Copyright 1999-2019 Alibaba Cloud All rights reserved.
*
* 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 <alibabacloud/core/Url.h>
#include <sstream>
#include <memory>
#include "EcsMetadataFetcher.h"
#include "CurlHttpClient.h"

namespace AlibabaCloud {

EcsMetadataFetcher::EcsMetadataFetcher() {
}

EcsMetadataFetcher::~EcsMetadataFetcher() {
}

std::string EcsMetadataFetcher::roleName()const {
  return roleName_;
}

void EcsMetadataFetcher::setRoleName(const std::string & roleName) {
  roleName_ = roleName;
}

std::string EcsMetadataFetcher::getMetadata() {
  return getMetadata(METADATA_SERVICE_HOST, URL_IN_ECS_METADATA);
}

std::string EcsMetadataFetcher::getMetadata(const std::string host,
  const std::string in_path) {
  std::stringstream path;
  path << in_path << roleName_;

  Url credentialUrl;
  credentialUrl.setHost(host);
  credentialUrl.setPath(path.str());

  auto client = std::make_shared<CurlHttpClient>();

  HttpRequest request;
  request.setUrl(credentialUrl);
  auto outcome = client->makeRequest(request);

  if (outcome.isSuccess())
    return std::string(outcome.result().body(), outcome.result().bodySize());
  else
    return outcome.error().errorCode();
}

}  // namespace AlibabaCloud