Client.h

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/*
 * SNode.C - A Slim Toolkit for Network Communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025, 2026
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
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 * This program is distributed in the hope that it will be useful,
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
/*
 * MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
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 */
 
#ifndef WEB_HTTP_CLIENT_CLIENT_H
#define WEB_HTTP_CLIENT_CLIENT_H
 
#include "web/http/client/ConfigHTTP.h"
#include "web/http/client/Request.h"              // IWYU pragma: export
#include "web/http/client/SocketContextFactory.h" // IWYU pragma: export
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <functional>
#include <string>
 
#endif // DOXYGEN_SHOULD_SKIP_THIS
 
namespace web::http::client {
 
    template <template <typename SocketContextFactoryT, typename... Args> typename SocketClientT>
    class Client
        : public SocketClientT<web::http::client::SocketContextFactory,
                               std::function<void(const std::shared_ptr<web::http::client::MasterRequest>&)>,
                               std::function<void(const std::shared_ptr<web::http::client::MasterRequest>&)>,
                               std::function<net::config::ConfigInstance&()>> {
    public:
        using MasterRequest = web::http::client::MasterRequest;
        using Request = web::http::client::Request;
        using Response = web::http::client::Response;
 
    private:
        using Super = SocketClientT<web::http::client::SocketContextFactory,
                                    std::function<void(const std::shared_ptr<MasterRequest>&)>,
                                    std::function<void(const std::shared_ptr<MasterRequest>&)>,
                                    std::function<net::config::ConfigInstance&()>>; // this makes it an HTTP client;
 
    public:
        using SocketConnection = typename Super::SocketConnection;
        using SocketAddress = typename Super::SocketAddress;
 
        Client(const std::string& name,
               const std::function<void(SocketConnection*)>& onConnect,
               const std::function<void(SocketConnection*)>& onConnected,
               const std::function<void(SocketConnection*)>& onDisconnect,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpConnected,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpDisconnected)
            : Super(name,
                    onConnect,
                    onConnected,
                    onDisconnect,
                    std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpConnected),
                    std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpDisconnected),
                    [this]() -> net::config::ConfigInstance& {
                        return *Super::getConfig();
                    }) {
            Super::getConfig()->net::config::ConfigInstance::template newSubCommand<ConfigHTTP>();
            Super::setOnConnect([config = Super::getConfig()->net::config::ConfigInstance::template getSubCommand<ConfigHTTP>()](
                                    SocketConnection* socketConnection) {
                if (config->getHostHeader().empty()) {
                    config->setHostHeader(socketConnection->getConfig()->Remote::getSocketAddress().toString(false));
                }
            });
        }
 
        Client(const std::function<void(SocketConnection*)>& onConnect,
               const std::function<void(SocketConnection*)>& onConnected,
               const std::function<void(SocketConnection*)>& onDisconnect,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpConnected,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpDisconnected)
            : Client("",
                     onConnect,
                     onConnected,
                     onDisconnect,
                     std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpConnected),
                     std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpDisconnected)) {
        }
 
        Client(const std::string& name,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpConnected,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpDisconnected)
            : Super(name,
                    std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpConnected),
                    std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpDisconnected),
                    [this]() -> net::config::ConfigInstance& {
                        return *Super::getConfig();
                    }) {
            Super::getConfig()->net::config::ConfigInstance::template newSubCommand<ConfigHTTP>();
            Super::setOnConnect([config = Super::getConfig()->net::config::ConfigInstance::template getSubCommand<ConfigHTTP>()](
                                    SocketConnection* socketConnection) {
                if (config->getHostHeader().empty()) {
                    config->setHostHeader(socketConnection->getConfig()->Remote::getSocketAddress().toString(false));
                }
            });
        }
 
        Client(std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpConnected,
               std::function<void(const std::shared_ptr<MasterRequest>&)>&& onHttpDisconnected)
            : Client("",
                     std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpConnected),
                     std::forward<std::function<void(const std::shared_ptr<MasterRequest>&)>>(onHttpDisconnected)) {
        }
    };
 
} // namespace web::http::client
 
#endif // WEB_HTTP_CLIENT_CLIENT_H