mirror of
https://github.com/librenms/librenms.git
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143 lines
3.9 KiB
PHP
143 lines
3.9 KiB
PHP
<?php
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/*
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* Copyright (C) 2015 Daniel Preussker <f0o@devilcode.org>
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Device-Grouping
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* @author Daniel Preussker <f0o@devilcode.org>
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* @copyright 2015 f0o, LibreNMS
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* @license GPL
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* @package LibreNMS
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* @subpackage Devices
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*/
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/**
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* Generate SQL from Group-Pattern
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* @param string $pattern Pattern to generate SQL for
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* @param string $search What to searchid for
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* @return string
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*/
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function GenGroupSQL($pattern, $search='') {
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$pattern = RunGroupMacros($pattern);
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if ($pattern === false) {
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return false;
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}
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$tmp = explode(' ', $pattern);
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$tables = array();
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foreach ($tmp as $opt) {
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if (strstr($opt, '%') && strstr($opt, '.')) {
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$tmpp = explode('.', $opt, 2);
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$tmpp[0] = str_replace('%', '', $tmpp[0]);
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$tables[] = mres(str_replace('(', '', $tmpp[0]));
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$pattern = str_replace($opt, $tmpp[0].'.'.$tmpp[1], $pattern);
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}
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}
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$pattern = rtrim($pattern, '&&');
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$pattern = rtrim($pattern, '||');
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$tables = array_keys(array_flip($tables));
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$x = sizeof($tables);
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$i = 0;
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$join = '';
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while ($i < $x) {
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if (isset($tables[($i + 1)])) {
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$join .= $tables[$i].'.device_id = '.$tables[($i + 1)].'.device_id && ';
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}
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$i++;
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}
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if (!empty($search)) {
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$search .= ' &&';
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}
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$sql = 'SELECT DISTINCT('.str_replace('(', '', $tables[0]).'.device_id) FROM '.implode(',', $tables).' WHERE '.$search.' ('.str_replace(array('%', '@', '!~', '~'), array('', '.*', 'NOT REGEXP', 'REGEXP'), $pattern).')';
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return $sql;
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}//end GenGroupSQL()
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/**
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* Get all devices of Group
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* @param integer $group_id Group-ID
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* @return string
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*/
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function GetDevicesFromGroup($group_id) {
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$pattern = dbFetchCell('SELECT pattern FROM device_groups WHERE id = ?', array($group_id));
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$pattern = rtrim($pattern, '&&');
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$pattern = rtrim($pattern, '||');
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if (!empty($pattern)) {
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return dbFetchRows(GenGroupSQL($pattern));
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}
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return false;
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}//end GetDevicesFromGroup()
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/**
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* Get all Device-Groups
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* @return array
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*/
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function GetDeviceGroups() {
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return dbFetchRows('SELECT * FROM device_groups ORDER BY name');
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}//end GetDeviceGroups()
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/**
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* Get all groups of Device
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* @param integer $device Device-ID
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* @return array
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*/
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function GetGroupsFromDevice($device) {
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$ret = array();
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foreach (GetDeviceGroups() as $group) {
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if (dbFetchCell(GenGroupSQL($group['pattern'], 'device_id=?').' LIMIT 1', array($device)) == $device) {
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$ret[] = $group['id'];
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}
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}
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return $ret;
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}//end GetGroupsFromDevice()
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/**
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* Process Macros
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* @param string $rule Rule to process
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* @param int $x Recursion-Anchor
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* @return string|boolean
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*/
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function RunGroupMacros($rule,$x=1) {
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global $config;
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krsort($config['alert']['macros']['group']);
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foreach( $config['alert']['macros']['group'] as $macro=>$value ) {
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if( !strstr($macro," ") ) {
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$rule = str_replace('%macros.'.$macro,'('.$value.')',$rule);
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}
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}
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if( strstr($rule,"%macros") ) {
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if( ++$x < 30 ) {
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$rule = RunGroupMacros($rule,$x);
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} else {
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return false;
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}
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}
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return $rule;
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}//end RunGroupMacros()
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