#!/usr/bin/env php
<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2026 The Cacti Group                                 |
 |                                                                         |
 | 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 2          |
 | 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.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDtool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

error_reporting(0);

if (!isset($called_by_script_server)) {
	include_once(__DIR__ . '/../include/cli_check.php');
	include_once(__DIR__ . '/../lib/snmp.php');

	array_shift($_SERVER['argv']);

	print call_user_func_array('ss_host_cpu', $_SERVER['argv']);
} else {
	include_once(__DIR__ . '/../lib/snmp.php');
}

function ss_host_cpu(string $hostname = '', int $host_id = 0, mixed $snmp_auth = '', string $cmd = 'index', string $arg1 = '', string $arg2 = '') : mixed {
	$snmp         = explode(':', $snmp_auth);
	$snmp_version = intval($snmp[0]);
	$snmp_port    = intval($snmp[1]);
	$snmp_timeout = intval($snmp[2]);
	$snmp_retries = intval($snmp[3]);
	$max_oids     = intval($snmp[4]);

	$snmp_auth_username   = '';
	$snmp_auth_password   = '';
	$snmp_auth_protocol   = '';
	$snmp_priv_passphrase = '';
	$snmp_priv_protocol   = '';
	$snmp_context         = '';
	$snmp_community       = '';

	if ($snmp_version == 3) {
		$snmp_auth_username   = $snmp[6];
		$snmp_auth_password   = $snmp[7];
		$snmp_auth_protocol   = $snmp[8];
		$snmp_priv_passphrase = $snmp[9];
		$snmp_priv_protocol   = $snmp[10];
		$snmp_context         = $snmp[11];
	} else {
		$snmp_community = $snmp[5];
	}

	$oids = [
		'index' => '.1.3.6.1.2.1.25.3.3.1.2',
		'usage' => '.1.3.6.1.2.1.25.3.3.1.2'
	];

	if (($cmd == 'index')) {
		$value = api_plugin_hook_function('hmib_get_cpu_indexes', ['host_id' => $host_id]);

		if (is_array($value)) {
			$arr_index = ss_host_cpu_get_indexes($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);

			if (cacti_sizeof($arr_index)) {
				foreach ($arr_index as $value) {
					print $value . "\n";
				}
			}
		} else {
			$indexes = explode(',', $value);

			foreach ($indexes as $index) {
				print $index . "\n";
			}
		}
	} elseif (($cmd == 'num_indexes')) {
		$value = api_plugin_hook_function('hmib_get_cpu_indexes', ['host_id' => $host_id]);

		if (is_array($value)) {
			$arr_index = ss_host_cpu_get_indexes($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);

			return cacti_sizeof($arr_index);
		} else {
			$indexes = explode(',', $value);

			return cacti_sizeof($indexes);
		}
	} elseif ($cmd == 'query') {
		$value = api_plugin_hook_function('hmib_get_cpu_indexes', ['host_id' => $host_id]);

		if (is_array($value)) {
			$arg = $arg1;

			$arr_index = ss_host_cpu_get_indexes($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);
			$arr       = ss_host_cpu_get_cpu_usage($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);

			if (cacti_sizeof($arr_index)) {
				foreach ($arr_index as $index => $value) {
					if ($arg == 'usage') {
						print $index . '!' . $arr[$index] . "\n";
					} elseif ($arg == 'index') {
						print $index . '!' . $value . "\n";
					}
				}
			}
		} else {
			$indexes = explode(',', $value);

			foreach ($indexes as $index) {
				print $index . '!' . $index . "\n";
			}
		}
	} elseif ($cmd == 'get') {
		$arg   = $arg1;
		$index = rtrim($arg2);

		$value = api_plugin_hook_function('hmib_get_cpu', ['host_id' => $host_id, 'arg' => $arg, 'index' => $index]);

		if (is_array($value)) {
			$arr_index = ss_host_cpu_get_indexes($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);
			$arr       = ss_host_cpu_get_cpu_usage($hostname, $snmp_community, $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids);

			if (isset($arr_index[$index]) && isset($arr[$index])) {
				return $arr[$index];
			} else {
				return 'U';
			}
		} else {
			return $value;
		}
	}

	return null;
}

function ss_host_cpu_get_cpu_usage(string $hostname, string $snmp_community, int $snmp_version, string $snmp_auth_username, string $snmp_auth_password,
	string $snmp_auth_protocol, string $snmp_priv_passphrase, string $snmp_priv_protocol, string $snmp_context, int $snmp_port,
	int $snmp_timeout, int $snmp_retries, int $max_oids) : array {
	$arr        = ss_host_cpu_reindex(cacti_snmp_walk($hostname, $snmp_community, '.1.3.6.1.2.1.25.3.3.1.2', $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids, SNMP_POLLER));
	$return_arr = [];

	$sum = 0;

	if (cacti_sizeof($arr)) {
		foreach ($arr as $index => $value) {
			if (is_numeric($value)) {
				$return_arr[$index] = $value;
				$sum += $value;
			}
		}

		if (cacti_sizeof($return_arr)) {
			$return_arr[4000] = round($sum / cacti_sizeof($return_arr));
		} else {
			$return_arr[4000] = 0;
		}

		return $return_arr;
	} else {
		return [];
	}
}

function ss_host_cpu_get_indexes(string $hostname, string $snmp_community, int $snmp_version, string $snmp_auth_username, string $snmp_auth_password,
	string $snmp_auth_protocol, string $snmp_priv_passphrase, string $snmp_priv_protocol, string $snmp_context, int $snmp_port,
	int $snmp_timeout, int $snmp_retries, int $max_oids) : array {
	$arr        = ss_host_cpu_reindex(cacti_snmp_walk($hostname, $snmp_community, '.1.3.6.1.2.1.25.3.3.1.2', $snmp_version, $snmp_auth_username, $snmp_auth_password, $snmp_auth_protocol, $snmp_priv_passphrase, $snmp_priv_protocol, $snmp_context, $snmp_port, $snmp_timeout, $snmp_retries, $max_oids, SNMP_POLLER));
	$return_arr = [];

	if (cacti_sizeof($arr)) {
		foreach ($arr as $index => $value) {
			if (is_numeric($value)) {
				$return_arr[$index] = $index;
			}
		}

		$return_arr[4000] = 'Total';
	}

	return $return_arr;
}

function ss_host_cpu_reindex(array $arr) : array {
	$return_arr = [];

	if (cacti_sizeof($arr)) {
		foreach ($arr as $index => $value) {
			$return_arr[$index] = $value['value'];
		}
	}

	return $return_arr;
}