mosquittoauthoptcompatwrap.h

/*
This file is part of FlashMQ (https://www.flashmq.org)
Copyright (C) 2021-2023 Wiebe Cazemier

FlashMQ is free software: you can redistribute it and/or modify
it under the terms of The Open Software License 3.0 (OSL-3.0).

See LICENSE for license details.
*/

#ifndef MOSQUITTOAUTHOPTCOMPATWRAP_H
#define MOSQUITTOAUTHOPTCOMPATWRAP_H

#include <vector>
#include <unordered_map>
#include <cstring>
#include <string>

/**
 * @brief The mosquitto_auth_opt struct is a resource managed class of auth options, compatible with passing as arguments to Mosquitto
 * auth plugins.
 *
 * It's fully assignable and copyable.
 */
struct mosquitto_auth_opt
{
    char *key = nullptr;
    char *value = nullptr;

    mosquitto_auth_opt(const std::string &key, const std::string &value);
    mosquitto_auth_opt(mosquitto_auth_opt &&other);
    mosquitto_auth_opt(const mosquitto_auth_opt &other);
    ~mosquitto_auth_opt();

    mosquitto_auth_opt& operator=(const mosquitto_auth_opt &other);
};

/**
 * @brief The AuthOptCompatWrap struct contains a vector of mosquitto auth options, with a head pointer and count which can be passed to
 * Mosquitto auth plugins.
 */
struct AuthOptCompatWrap
{
    std::vector<struct mosquitto_auth_opt> optArray;

    AuthOptCompatWrap(const std::unordered_map<std::string, std::string> &authOpts);
    AuthOptCompatWrap(const AuthOptCompatWrap &other) = default;
    AuthOptCompatWrap(AuthOptCompatWrap &&other) = delete;
    AuthOptCompatWrap() = default;

    struct mosquitto_auth_opt *head() { return &optArray[0]; }
    int size() { return optArray.size(); }

    AuthOptCompatWrap &operator=(const AuthOptCompatWrap &other) = default;
};


#endif // MOSQUITTOAUTHOPTCOMPATWRAP_H