CocoaTweet/src/cocoatweet/api/interface/httpGet.cc

#include <cocoatweet/api/interface/httpGet.h>
#include "cocoatweet/util/util.h"
#include <cocoatweet/exception/tweetNotFoundException.h>
#include <cocoatweet/exception/authenticateException.h>
#include <cocoatweet/exception/tweetDuplicateException.h>
#include <cocoatweet/exception/tweetTooLongException.h>
#include <cocoatweet/exception/rateLimitException.h>
#include <cocoatweet/exception/tokenInvalidException.h>
#include <cocoatweet/exception/missingRequiredParamException.h>
#include <cocoatweet/exception/credentialNotAllowedException.h>
#include "nlohmann/json.hpp"
#include <iterator>
#include <memory>
#include <vector>
#include <sstream>
#include <stdexcept>
extern "C" {
#include <curl/curl.h>
}

#ifndef NDEBUG
#include <iostream>
#endif

namespace CocoaTweet::API::Interface {
void HttpGet::process(std::weak_ptr<CocoaTweet::Authentication::AuthenticatorBase> _oauth,
                      std::function<void(const std::string&)> _callback) {
  auto url = url_;

  // エンドポイントへのパラメータにOAuthパラメータを付加して署名作成
  auto oauth = _oauth.lock();
  // auto oauthParam  = oauth->oauthParam();
  // auto sigingParam = oauthParam;
  // if (contentType_ == "application/x-www-form-urlencoded") {
  //   for (const auto [k, v] : bodyParam_) {
  //     sigingParam.insert_or_assign(k, v);
  //   }
  // }

  // auto signature = oauth->signature(sigingParam, "GET", url_);

  // // 作成した署名をエンドポイントへのパラメータ及びOAuthパラメータに登録
  // oauthParam.merge(signature);

  // // ヘッダの構築
  // std::string oauthHeader = "authorization: OAuth ";
  // {
  //   std::vector<std::string> tmp;
  //   for (const auto& [key, value] : oauthParam) {
  //     tmp.push_back(key + "=" + CocoaTweet::Util::urlEncode(value));
  //   }
  //   oauthHeader += CocoaTweet::Util::join(tmp, ",");
  // }
  auto oauthHeader = std::string();
  if (contentType_ == "application/x-www-form-urlencoded") {
    oauthHeader = oauth->calculateAuthHeader(bodyParam_, "GET", url_);
  } else {
    oauthHeader = oauth->calculateAuthHeader({}, "GET", url_);
  }

  // URLの構築
  {
    std::vector<std::string> tmp;
    for (const auto& [key, value] : bodyParam_) {
      tmp.push_back(key + "=" + value);
    }
    url_ += std::string("?" + CocoaTweet::Util::join(tmp, "&"));
  }

  // do post
  CURL* curl;
  CURLcode res;
  std::string rcv;
  long responseCode;
  curl = curl_easy_init();
  url_ = url_;
  if (curl) {
    curl_easy_setopt(curl, CURLOPT_URL, url_.c_str());
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlCallback_);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, (std::string*)&rcv);
#ifndef NDEBUG
    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
#endif
    // Headerを保持するcurl_slist*を初期化
    struct curl_slist* headers = NULL;
    // Authorizationをヘッダに追加
    headers = curl_slist_append(headers, oauthHeader.c_str());

    std::string contentType = "";
    if (contentType_ == "application/x-www-form-urlencoded") {
      contentType = contentType_;
    } else if (contentType_ == "multipart/form-data") {
      contentType = contentType_ + "; boundary=milkcocoa0902";
    }

    headers = curl_slist_append(headers, ("Content-Type: " + contentType).c_str());
    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
    res = curl_easy_perform(curl);
    curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &responseCode);
    curl_easy_cleanup(curl);
  }

  if (res != CURLE_OK) {
    throw std::runtime_error(std::string("INTERNAL ERROR : curl(") + std::to_string(res) + ")");
    exit(1);
  }
#ifndef NDEBUG
  std::cout << rcv << std::endl;
#endif
  if ((responseCode / 100) == 4) {
    auto j = nlohmann::json::parse(rcv);
    if (j.count("error") != 0) {
      // この形式はエラーコードを持たないのでエラー種別が特定できない
      throw new CocoaTweet::Exception::Exception(j["error"]);
    }

    auto error   = j["errors"][0]["code"];
    auto message = j["errors"][0]["message"];

    if (error.get<int>() == 144) {
      throw CocoaTweet::Exception::TweetNotFoundException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 32) {
      throw CocoaTweet::Exception::AuthenticateException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 89) {
      throw CocoaTweet::Exception::TokenInvalidException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 187) {
      throw CocoaTweet::Exception::TweetDuplicateException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 88 || error.get<int>() == 185) {
      throw CocoaTweet::Exception::RateLimitException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 186) {
      throw CocoaTweet::Exception::TweetTooLongException(message.get<std::string>().c_str());
    } else if (error.get<int>() == 170) {
      throw CocoaTweet::Exception::MissingRequiredParamException(
          message.get<std::string>().c_str());
    } else if (error.get<int>() == 220) {
      throw CocoaTweet::Exception::CredentialNotAllowedException(
          message.get<std::string>().c_str());
    } else {
    }
  }

  if (_callback) {
    _callback(rcv);
  }
}
} // namespace CocoaTweet::API::Interface