Files
clio/src/web/Resolver.hpp
2026-03-24 15:25:32 +00:00

61 lines
1.5 KiB
C++

#pragma once
#include <boost/asio.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <concepts>
#include <string>
#include <string_view>
#include <vector>
namespace web {
/**
* @brief The requirements of a resolver
*/
template <typename T>
concept SomeResolver = requires(T t) {
std::is_default_constructible_v<T>;
{ t.resolve(std::string_view{}, std::string_view{}) } -> std::same_as<std::vector<std::string>>;
{ t.resolve(std::string_view{}) } -> std::same_as<std::vector<std::string>>;
};
/**
* @brief Simple hostnames to IP addresses resolver.
*/
class Resolver {
boost::asio::io_context ioContext_;
boost::asio::ip::tcp::resolver resolver_{ioContext_};
public:
/**
* @brief Resolve hostname to IP addresses.
*
* @throw This method throws an exception when the hostname cannot be resolved.
*
* @param hostname Hostname to resolve
* @return IP addresses of the hostname
*/
std::vector<std::string>
resolve(std::string_view hostname);
/**
* @brief Resolve to IP addresses with port.
*
* @throw This method throws an exception when the hostname cannot be resolved.
*
* @param hostname Hostname to resolve
* @param service Service to resolve
* @return IP addresses of the hostname
*/
std::vector<std::string>
resolve(std::string_view hostname, std::string_view service);
private:
std::vector<boost::asio::ip::tcp::endpoint>
doResolve(std::string_view hostname, std::string_view service);
};
} // namespace web