Function open_url

src/ui/DownloadDictionariesDialog.cpp:583–612

}

static std::variant<HINTERNET, FtpWebOperationError> open_url(HINTERNET win_inet_handle, const std::wstring &url, const FtpOperationParams &params) {
  const auto url_handle =
      InternetOpenUrl(win_inet_handle, url.c_str(), nullptr, 0, INTERNET_FLAG_PASSIVE | INTERNET_FLAG_RELOAD | INTERNET_FLAG_PRAGMA_NOCACHE, 0);
  if (url_handle == nullptr)
    return FtpWebOperationError{FtpWebOperationErrorType::url_cannot_be_opened, -1};

  if (!params.anonymous) {
    InternetSetOption(url_handle, INTERNET_OPTION_PROXY_USERNAME, const_cast<wchar_t *>(params.proxy_username.c_str()),
                      static_cast<DWORD>(params.proxy_username.length() + 1));
    InternetSetOption(url_handle, INTERNET_OPTION_PROXY_PASSWORD, const_cast<wchar_t *>(params.proxy_password.c_str()),
                      static_cast<DWORD>(params.proxy_password.length() + 1));
    InternetSetOption(url_handle, INTERNET_OPTION_PROXY_SETTINGS_CHANGED, nullptr, 0);
  }
  HttpSendRequest(url_handle, nullptr, 0, nullptr, 0);

  DWORD code = 0;
  DWORD dummy = 0;
  DWORD size = sizeof(DWORD);

  if (!HttpQueryInfo(url_handle, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &code, &size, &dummy))
    return FtpWebOperationError{FtpWebOperationErrorType::querying_status_code_failed, -1};

  if (code != HTTP_STATUS_OK) {
    if (code == HTTP_STATUS_PROXY_AUTH_REQ)
      return FtpWebOperationError{FtpWebOperationErrorType::proxy_authorization_required, static_cast<int>(code)};

    return FtpWebOperationError{FtpWebOperationErrorType::http_error, static_cast<int>(code)};
  }
  return url_handle;
}

static std::variant<HINTERNET, FtpWebOperationError> ftp_web_proxy_login(const FtpOperationParams &params) {
  std::wstring proxy_final_string = params.proxy_address + L":" + std::to_wstring(params.proxy_port);