auditd-plugin-clickhouse/utils.hpp
2020-01-27 13:07:59 +03:00

74 lines
2.1 KiB
C++

/*
* This is an auditd plugin for sending auditd data
* to clickhouse DB.
* Copyright (C) 2020 Aleksei Nikiforov <darktemplar@basealt.ru>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifndef AUDITD_PLUGIN_CLICKHOUSE_UTILS_HPP
#define AUDITD_PLUGIN_CLICKHOUSE_UTILS_HPP
#include <string>
#include <memory>
#include <boost/property_tree/ptree.hpp>
std::string string_or_null(const char *data);
std::string string_or_null_and_free(const char *data);
std::string sanitize_column_name(const std::string &name);
bool is_valid_table_name(const std::string &value);
template <typename T>
std::shared_ptr<T> ensure_not_null(const std::shared_ptr<T> &value)
{
if (!value)
{
throw std::runtime_error("Invalid pointer cast");
}
return value;
}
template <typename T>
bool always_true(const T &)
{
return true;
}
template <typename T>
void optional_set(T &value, const boost::property_tree::ptree &tree, const char *element_name, bool (*check_function)(const T &))
{
auto element = tree.get_child_optional(element_name);
if (element)
{
if (check_function(element->get_value<T>()))
{
value = element->get_value<T>();
}
else
{
throw std::runtime_error(std::string("Invalid value for option '") + std::string(element_name) + std::string("'"));
}
}
}
template <typename T>
void optional_set(T &value, const boost::property_tree::ptree &tree, const char *element_name)
{
optional_set(value, tree, element_name, &always_true<T>);
}
#endif /* AUDITD_PLUGIN_CLICKHOUSE_UTILS_HPP */