pandorafms/pandora_console/include/class/DiscoveryConsoleTask.php

346 lines
11 KiB
PHP

<?php
/**
* Extension to schedule tasks on Pandora FMS Console
*
* @category Extensions
* @package Pandora FMS
* @subpackage Enterprise
* @version 1.0.0
* @license See below
*
* ______ ___ _______ _______ ________
* | __ \.-----.--.--.--| |.-----.----.-----. | ___| | | __|
* | __/| _ | | _ || _ | _| _ | | ___| |__ |
* |___| |___._|__|__|_____||_____|__| |___._| |___| |__|_|__|_______|
*
* ============================================================================
* Copyright (c) 2005-2023 Pandora FMS
* Please see https://pandorafms.com/community/ for full contribution list
* 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 for version 2.
* 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.
* ============================================================================
*/
if ((bool) $config['enterprise_installed'] === true) {
enterprise_include_once('/include/functions_cron.php');
} else {
include_once $config['homedir'].'/include/functions_cron_task.php';
}
/**
* Base class to run scheduled tasks in cron extension
*/
class DiscoveryConsoleTask
{
public const SCHEDULES = [
'no',
'hourly',
'daily',
'weekly',
'monthly',
'yearly',
'custom',
];
/**
* Retrieve scheduled tasks given filters.
*
* @param array $filter Tasks filtered.
*
* @return array List of scheduled tasks.
*/
public function list(array $filter)
{
$tasks = db_get_all_rows_filter(
'tuser_task_scheduled INNER JOIN tuser_task ON tuser_task.id = tuser_task_scheduled.id_user_task',
$filter,
'tuser_task_scheduled.*'
);
if ($tasks === false) {
return [];
}
$tasks = array_map(
function ($item) {
$item['args'] = unserialize($item['args']);
return $item;
},
$tasks
);
return $tasks;
}
/**
* Should execute task.
*
* @param array $task Info task.
*
* @return boolean
*/
private function shouldTaskRun($task)
{
global $config;
if (isset($config['reporting_console_enable']) === true
&& (bool) $config['reporting_console_enable'] === true
) {
$task_info = db_get_row('tuser_task', 'id', $task['id_user_task']);
if (isset($config['reporting_console_node']) === true
&& (bool) $config['reporting_console_node'] === true
) {
if (($task_info['function_name'] !== 'cron_task_generate_report_by_template'
&& $task_info['function_name'] !== 'cron_task_generate_report'
&& $task_info['function_name'] !== 'cron_task_save_report_to_disk')
) {
return false;
}
} else {
if (($task_info['function_name'] === 'cron_task_generate_report_by_template'
|| $task_info['function_name'] === 'cron_task_generate_report'
|| $task_info['function_name'] === 'cron_task_save_report_to_disk')
) {
return false;
}
}
}
return true;
}
/**
* Manage scheduled tasks.
*
* @return void
*/
public function run()
{
global $config;
global $pandora_version;
// Maintenance tasks for tconsole table.
// Must do at every Cron execution.
if (isset($config['id_console']) === true && $config['id_console'] > 0) {
$console_exists = db_get_row('tconsole', 'id_console', $config['id_console']);
if ($console_exists === false) {
db_process_sql_insert(
'tconsole',
[
'id_console' => $config['id_console'],
'description' => $config['console_description'],
'version' => $pandora_version,
'console_type' => ($config['reporting_console_node'] === true) ? 1 : 0,
'timezone' => $config['timezone'],
'public_url' => $config['public_url'],
]
);
} else {
db_process_sql_update(
'tconsole',
[
'description' => $config['console_description'],
'timezone' => $config['timezone'],
'public_url' => $config['public_url'],
'console_type' => (int) $config['reporting_console_node'],
'version' => $pandora_version,
],
[
'id_console' => $config['id_console'],
]
);
}
}
// Maintenance task: schedule daily task to manage GoTTY processes if not defined yet.
// Must do at every Cron execution.
$gotty_ssh_enabled = (bool) $config['gotty_ssh_enabled'];
$gotty_telnet_enabled = (bool) $config['gotty_telnet_enabled'];
if ($gotty_ssh_enabled === true || $gotty_telnet_enabled === true) {
// Create necessary data in task tables when some method of GoTTY is enabled in setup.
if ((bool) $config['enterprise_installed'] === false) {
$call_func_user_task_id = db_get_value_sql('SELECT id FROM `tuser_task` WHERE `function_name` = "cron_task_call_user_function"');
if ($call_func_user_task_id === false) {
db_process_sql("INSERT INTO `tuser_task` (`function_name`, `parameters`, `name`) VALUES ('cron_task_call_user_function','a:1:{i:0;a:2:{s:11:\"description\";s:13:\"Function name\";s:4:\"type\";s:4:\"text\";}}','Call PHP function')");
}
}
$user_function_task_id = db_get_value_sql('SELECT id FROM `tuser_task_scheduled` WHERE `args` LIKE "%cron_task_start_gotty%"');
if ($user_function_task_id === false) {
// Schedule task to manage GoTTY processes daily if it is not scheduled yet.
$this->schedule(
'cron_task_call_user_function',
[
0 => 'cron_task_start_gotty',
'function_name' => 'cron_task_start_gotty',
'internal' => 1,
],
'daily',
0,
0,
strtotime('tomorrow')
);
}
}
// Maintenance task: check whether start GoTTY SSH and Telnet processes are running and start otherwise.
// Must do at every Cron execution.
cron_task_start_gotty(false);
// Do not output anything until is completed. There're session
// operations inside cron_task_run function.
ob_start();
if (cron_task_lock() === false) {
// Cannot continue. Locked.
echo ob_get_clean();
exit;
}
$time = get_system_time();
$scheduled_tasks = db_get_all_rows_in_table('tuser_task_scheduled');
if (!$scheduled_tasks) {
$scheduled_tasks = [];
}
/*
Watch out! First_execution corresponds to next_execution the name
of the bbdd is maintained to ensure integrity.
*/
foreach ($scheduled_tasks as $task) {
$params = unserialize($task['args']);
if ($this->shouldTaskRun($task) === false) {
continue;
}
if ($task['scheduled'] == 'no') {
if (($params['first_execution']) < $time) {
echo date('Y/m/d H:i:s').' Execute once time cron task: ';
echo $task['id'];
echo "\n\n";
cron_task_run($task['id']);
// The task was not scheduled and was executed once.
db_process_sql_delete(
'tuser_task_scheduled',
['id' => $task['id']]
);
}
} else {
if (($params['first_execution']) < $time) {
echo date('Y/m/d H:i:s').' EXECUTED CRON TASK: '.$task['id'];
echo "\n";
echo "\n";
cron_task_run($task['id']);
}
}
}
// Dump to output.
echo ob_get_clean();
// Release the lock.
cron_task_release_lock();
}
/**
* Schedules a discovery console task to be executed by cron.
*
* @param string $function_name Name of the function:
* cron_task_generate_report
* cron_task_generate_report_by_template
* cron_task_save_report_to_disk
* cron_task_do_backup
* cron_task_execute_custom_script
* cron_task_save_xml_report_to_disk
* cron_task_feedback_send_mail
* cron_task_generate_csv_log.
* @param array $arguments Task execution arguments (if needed).
* @param string $schedule Task schedule options:
* 'no',
* 'hourly',
* 'daily',
* 'weekly',
* 'monthly',
* 'yearly',
* 'custom'.
* @param integer $group_id Group id (0 => all).
* @param string|null $id_user User id, if null, current user.
* @param integer|null $time_start When to start, if null, now.
*
* @return boolean Sucessfully scheduled or not.
*/
public function schedule(
string $function_name,
array $arguments=[],
string $schedule='no',
int $group_id=0,
?string $id_user=null,
?int $time_start=null
) {
global $config;
if ($id_user === null) {
$id_user = $config['id_user'];
}
$idUserTask = db_get_value(
'id',
'tuser_task',
'function_name',
$function_name
);
if ($idUserTask === false) {
// Failed to identify function.
return false;
}
if (in_array($schedule, self::SCHEDULES) === false) {
// Failed to schedule. Not a valid schedule option.
return false;
}
if ($time_start === null) {
$time_start = strtotime('now');
}
// Params for send mail with cron.
$parameters = array_merge(
$arguments,
[ 'first_execution' => $time_start ]
);
// Values insert task cron.
$task = [
'id_usuario' => $id_user,
'id_user_task' => $idUserTask,
'args' => serialize($parameters),
'scheduled' => $schedule,
'id_grupo' => $group_id,
];
$result = db_process_sql_insert(
'tuser_task_scheduled',
$task
);
return ($result !== false);
}
}