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thold_functions.php
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<?php
/*
ex: set tabstop=4 shiftwidth=4 autoindent:
+-------------------------------------------------------------------------+
| Copyright (C) 2006-2017 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/ |
+-------------------------------------------------------------------------+
*/
function thold_update_contacts() {
$users = db_fetch_assoc("SELECT id, 'email' AS type, email_address FROM user_auth WHERE email_address!=''");
if (sizeof($users)) {
foreach ($users as $u) {
$cid = db_fetch_cell('SELECT id FROM plugin_thold_contacts WHERE type="email" AND user_id=' . $u['id']);
if ($cid) {
db_execute("REPLACE INTO plugin_thold_contacts (id, user_id, type, data) VALUES ($cid, " . $u['id'] . ", 'email', '" . $u['email_address'] . "')");
} else {
db_execute("REPLACE INTO plugin_thold_contacts (user_id, type, data) VALUES (" . $u['id'] . ", 'email', '" . $u['email_address'] . "')");
}
}
}
}
function thold_tabs() {
global $config;
/* present a tabbed interface */
$tabs = array(
'thold' => __('Thresholds', 'thold'),
'log' => __('Log', 'thold'),
'hoststat' => __('Device Status', 'thold')
);
get_filter_request_var('tab', FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/^([a-zA-Z]+)$/')));
load_current_session_value('tab', 'sess_thold_graph_tab', 'general');
$current_tab = get_request_var('action');
/* draw the tabs */
print "<div class='tabs'><nav><ul>\n";
if (sizeof($tabs)) {
foreach (array_keys($tabs) as $tab_short_name) {
print "<li><a class='tab" . (($tab_short_name == $current_tab) ? " selected'" : "'") .
" href='" . htmlspecialchars($config['url_path'] .
'plugins/thold/thold_graph.php?' .
'action=' . $tab_short_name) .
"'>" . $tabs[$tab_short_name] . "</a></li>\n";
}
}
print "</ul></nav></div>\n";
}
function thold_debug($txt) {
global $debug;
if (read_config_option('thold_log_debug') == 'on' || $debug) {
thold_cacti_log($txt);
}
}
function thold_initialize_rusage() {
global $thold_start_rusage;
if (function_exists('getrusage')) {
$thold_start_rusage = getrusage();
}
$thold_start_rusage['microtime'] = microtime(true);
}
function thold_display_rusage() {
global $thold_start_rusage;
if (function_exists('getrusage')) {
$dat = getrusage();
html_start_box('', '100%', '', '3', 'left', '');
print '<tr>';
if (!isset($thold_start_rusage)) {
print "<td colspan='10'>ERROR: Can not display RUSAGE please call thold_initialize_rusage first</td>";
} else {
$i_u_time = $thold_start_rusage['ru_utime.tv_sec'] + ($thold_start_rusage['ru_utime.tv_usec'] * 1E-6);
$i_s_time = $thold_start_rusage['ru_stime.tv_sec'] + ($thold_start_rusage['ru_stime.tv_usec'] * 1E-6);
$s_s = $thold_start_rusage['ru_nswap'];
$s_pf = $thold_start_rusage['ru_majflt'];
$start_time = $thold_start_rusage['microtime'];
$end_time = microtime(true);
$utime = ($dat['ru_utime.tv_sec'] + ($dat['ru_utime.tv_usec'] * 1E-6)) - $i_u_time;
$stime = ($dat['ru_stime.tv_sec'] + ($dat['ru_stime.tv_usec'] * 1E-6)) - $i_s_time;
$swaps = $dat['ru_nswap'] - $s_s;
$pages = $dat['ru_majflt'] - $s_pf;
print "<td colspan='10' width='1%' style='text-align:left;'>";
print '<b>' . __('Time:', 'thold') . '</b> ' . round($end_time - $start_time,2) . ' seconds, ';
print '<b>' . __('User:', 'thold') . '</b> ' . round($utime,2) . ' seconds, ';
print '<b>' . __('System:', 'thold') . '</b> ' . round($stime,2) . ' seconds, ';
print '<b>' . __('Swaps:', 'thold') . '</b> ' . ($swaps) . ' swaps, ';
print '<b>' . __('Pages:', 'thold') . '</b> ' . ($pages) . ' pages';
print '</td>';
}
print '</tr>';
html_end_box(false);
}
}
function thold_legend() {
global $thold_states;
html_start_box('', '100%', '', '3', 'center', '');
print '<tr>';
foreach ($thold_states as $index => $state) {
print "<td class='" . $state['class'] . "'>" . $state['display'] . "</td>";
}
print "</tr>";
html_end_box(false);
}
function host_legend() {
global $thold_host_states;
html_start_box('', '100%', '', '3', 'center', '');
print '<tr>';
foreach ($thold_host_states as $index => $state) {
print "<td class='" . $state['class'] . "'>" . $state['display'] . "</td>";
}
print '</tr>';
html_end_box(false);
}
function log_legend() {
global $thold_log_states;
html_start_box('', '100%', '', '3', 'center', '');
print '<tr>';
foreach ($thold_log_states as $index => $state) {
print "<td class='" . $state['class'] . "'>" . $state['display_short'] . "</td>";
}
print "</tr>";
html_end_box(false);
}
function thold_expression_rpn_pop(&$stack) {
global $rpn_error;
if (sizeof($stack)) {
return array_pop($stack);
} else {
$rpn_error = true;
return false;
}
}
function thold_expression_math_rpn($operator, &$stack) {
global $rpn_error;
$orig_stack = $stack;
switch($operator) {
case '+':
case '-':
case '/':
case '*':
case '%':
case '^':
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
$v3 = 'U';
$rpn_evaled = false;
if (!is_numeric($v1)) {
cacti_log('ERROR: RPN value: v1 "' . $v1 . '" is Not valid for operator "' . $operator . '". Stack:"' . implode(',', $orig_stack) . '"', false, 'THOLD');
$rpn_error = true;
} elseif (!is_numeric($v2)) {
cacti_log('ERROR: RPN value: v2 "' . $v2 . '" is Not valid for operator "' . $operator . '". Stack:"' . implode(',', $orig_stack) . '"', false, 'THOLD');
$rpn_error = true;
} elseif ($v1 == 0 && $v2 == 0 && $operator == '/') {
$v3 = 0;
$rpn_evaled = true;
break;
} elseif ($v1 == 0 && $operator == '/') {
cacti_log('ERROR: RPN value: v1 can not be "0" when the operator is "/". Stack:"' . implode(',', $orig_stack) . '"', false, 'THOLD');
$rpn_error = true;
}
if ($rpn_evaled) {
array_push($stack, $v3);
} else if (!$rpn_error) {
eval("\$v3 = " . $v2 . ' ' . $operator . ' ' . $v1 . ';');
if ($v3 == '') {
$v3 = 0;
}
array_push($stack, $v3);
}
break;
case 'SIN':
case 'COS':
case 'TAN':
case 'ATAN':
case 'SQRT':
case 'FLOOR':
case 'CEIL':
case 'DEG2RAD':
case 'RAD2DEG':
case 'ABS':
case 'EXP':
case 'LOG':
$v1 = thold_expression_rpn_pop($stack);
if (!$rpn_error) {
eval("\$v2 = " . $operator . '(' . $v1 . ');');
array_push($stack, $v2);
}
break;
case 'ATAN2':
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
if (!$rpn_error) {
$v3 = atan2($v1, $v2);
array_push($stack, $v3);
}
break;
case 'ADDNAN':
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
if (!$rpn_error) {
if ($v1 == 'NAN' || $v1 == 'U') $v1 = 0;
if ($v2 == 'NAN' || $v2 == 'U') $v2 = 0;
array_push($stack, $v1 + $v2);
}
break;
}
}
function thold_expression_boolean_rpn($operator, &$stack) {
global $rpn_error;
if ($operator == 'UN') {
$v1 = thold_expression_rpn_pop($stack);
if ($v1 == 'U' || $v1 == 'NAN') {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
} elseif ($operator == 'ISINF') {
$v1 = thold_expression_rpn_pop($stack);
if ($v1 == 'INF' || $v1 == 'NEGINF') {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
} elseif ($operator == 'AND') {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
if ($v1 > 0 && $v2 > 0) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
} elseif ($operator == 'OR') {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
if ($v1 > 0 || $v2 > 0) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
} elseif ($operator == 'IF') {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
$v3 = thold_expression_rpn_pop($stack);
if ($v3 == 0) {
array_push($stack, $v1);
} else {
array_push($stack, $v2);
}
} else {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
/* deal with unknown or infinite data */
if (($v1 == 'INF' || $v2 == 'INF') ||
($v1 == 'NAN' || $v2 == 'NAN') ||
($v1 == 'U' || $v2 == 'U') ||
($v1 == 'NEGINF' || $v2 == 'NEGINF')) {
array_push($stack, '0');
}
switch($operator) {
case 'LT':
if ($v1 < $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
case 'GT':
if ($v1 > $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
case 'LE':
if ($v1 <= $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
case 'GE':
if ($v1 >= $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
case 'EQ':
if ($v1 == $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
case 'NE':
if ($v1 != $v2) {
array_push($stack, '1');
} else {
array_push($stack, '0');
}
break;
}
}
}
function thold_expression_compare_rpn($operator, &$stack) {
global $rpn_error;
if ($operator == 'MAX' || $operator == 'MIN') {
$v[0] = thold_expression_rpn_pop($stack);
$v[1] = thold_expression_rpn_pop($stack);
if (in_array('INF', $v)) {
array_push($stack, 'INF');
} elseif (in_array('NEGINF', $v)) {
array_push($stack, 'NEGINF');
} elseif (in_array('U', $v)) {
array_push($stack, 'U');
} elseif (in_array('NAN', $v)) {
array_push($stack, 'NAN');
} elseif ($operator == 'MAX') {
array_push($stack, max($v));
} else {
array_push($stack, min($v));
}
} else {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
$v3 = thold_expression_rpn_pop($stack);
if (($v1 == 'U' || $v1 == 'NAN') ||
($v2 == 'U' || $v2 == 'NAN') ||
($v3 == 'U' || $v3 == 'NAN')) {
array_push($stack, 'U');
} elseif (($v1 == 'INF' || $v1 == 'NEGINF') ||
($v2 == 'INF' || $v2 == 'NEGINF') ||
($v3 == 'INF' || $v3 == 'NEGINF')) {
array_push($stack, 'U');
} elseif ($v1 < $v2) {
if ($v3 >= $v1 && $v3 <= $v2) {
array_push($stack, $v3);
} else {
array_push($stack, 'U');
}
} else {
if ($v3 >= $v2 && $v3 <= $v1) {
array_push($stack, $v3);
} else {
array_push($stack, 'U');
}
}
}
}
function thold_expression_specvals_rpn($operator, &$stack, $count) {
global $rpn_error;
if ($operator == 'UNKN') {
array_push($stack, 'U');
} elseif ($operator == 'INF') {
array_push($stack, 'INF');
} elseif ($operator == 'NEGINF') {
array_push($stack, 'NEGINF');
} elseif ($operator == 'COUNT') {
array_push($stack, $count);
} elseif ($operator == 'PREV') {
/* still have to figure this out */
}
}
function thold_expression_stackops_rpn($operator, &$stack) {
global $rpn_error;
if ($operator == 'DUP') {
$v1 = thold_expression_rpn_pop($stack);
array_push($stack, $v1);
array_push($stack, $v1);
} elseif ($operator == 'POP') {
thold_expression_rpn_pop($stack);
} else {
$v1 = thold_expression_rpn_pop($stack);
$v2 = thold_expression_rpn_pop($stack);
array_push($stack, $v2);
array_push($stack, $v1);
}
}
function thold_expression_time_rpn($operator, &$stack) {
global $rpn_error;
if ($operator == 'NOW') {
array_push($stack, time());
} elseif ($operator == 'TIME') {
/* still need to figure this one out */
} elseif ($operator == 'LTIME') {
/* still need to figure this one out */
}
}
function thold_expression_setops_rpn($operator, &$stack) {
global $rpn_error;
if ($operator == 'SORT') {
$count = thold_expression_rpn_pop($stack);
$v = array();
if ($count > 0) {
for($i = 0; $i < $count; $i++) {
$v[] = thold_expression_rpn_pop($stack);
}
sort($v, SORT_NUMERIC);
foreach ($v as $val) {
array_push($stack, $val);
}
}
} elseif ($operator == 'REV') {
$count = thold_expression_rpn_pop($stack);
$v = array();
if ($count > 0) {
for($i = 0; $i < $count; $i++) {
$v[] = thold_expression_rpn_pop($stack);
}
$v = array_reverse($v);
foreach ($v as $val) {
array_push($stack, $val);
}
}
} elseif ($operator == 'AVG') {
$count = thold_expression_rpn_pop($stack);
if ($count > 0) {
$total = 0;
$inf = false;
$neginf = false;
for($i = 0; $i < $count; $i++) {
$v = thold_expression_rpn_pop($stack);
if ($v == 'INF') {
$inf = true;
} elseif ($v == 'NEGINF') {
$neginf = true;
} else {
$total += $v;
}
}
if ($inf) {
array_push($stack, 'INF');
} elseif ($neginf) {
array_push($stack, 'NEGINF');
} else {
array_push($stack, $total/$count);
}
}
}
}
function thold_expression_ds_value($operator, &$stack, $data_sources) {
global $rpn_error;
if (sizeof($data_sources)) {
foreach ($data_sources as $rrd_name => $value) {
if (strtoupper($rrd_name) == $operator) {
array_push($stack, $value);
return;
}
}
}
array_push($stack, 0);
}
function thold_expression_specialtype_rpn($operator, &$stack, $local_data_id, $currentval) {
switch ($operator) {
case 'CURRENT_DATA_SOURCE':
array_push($stack, $currentval);
break;
case 'CURRENT_GRAPH_MAXIMUM_VALUE':
array_push(get_current_value($local_data_id, 'upper_limit'));
break;
case 'CURRENT_GRAPH_MINIMUM_VALUE':
array_push(get_current_value($local_data_id, 'lower_limit'));
break;
case 'CURRENT_DS_MINIMUM_VALUE':
array_push(get_current_value($local_data_id, 'rrd_minimum'));
break;
case 'CURRENT_DS_MAXIMUM_VALUE':
array_push($stack, get_current_value($local_data_id, 'rrd_maximum'));
break;
case 'VALUE_OF_HDD_TOTAL':
array_push($stack, get_current_value($local_data_id, 'hdd_total'));
break;
case 'ALL_DATA_SOURCES_NODUPS':
case 'ALL_DATA_SOURCES_DUPS':
$v1 = 0;
$all_dsns = array();
$all_dsns = db_fetch_assoc_prepared('SELECT data_source_name
FROM data_template_rrd
WHERE local_data_id = ?',
array($local_data_id));
if (is_array($all_dsns)) {
foreach ($all_dsns as $dsn) {
$v1 += get_current_value($local_data_id, $dsn['data_source_name']);
}
}
array_push($stack, $v1);
break;
default:
cacti_log('WARNING: CDEF property not implemented yet: ' . $operator, false, 'THOLD');
array_push($stack, $currentval);
break;
}
}
function thold_get_currentval(&$thold_data, &$rrd_reindexed, &$rrd_time_reindexed, &$item, &$currenttime) {
/* adjust the polling interval by the last read, if applicable */
$currenttime = $rrd_time_reindexed[$thold_data['local_data_id']];
if ($thold_data['lasttime'] > 0) {
$polling_interval = $currenttime - $thold_data['lasttime'];
} else {
$polling_interval = $thold_data['rrd_step'];
}
if (empty($polling_interval)) {
$polling_interval = read_config_option('poller_interval');
}
$currentval = 0;
if (isset($rrd_reindexed[$thold_data['local_data_id']])) {
$item = $rrd_reindexed[$thold_data['local_data_id']];
if (isset($item[$thold_data['name']])) {
switch ($thold_data['data_source_type_id']) {
case 2: // COUNTER
if ($thold_data['oldvalue'] != 0) {
if ($item[$thold_data['name']] >= $thold_data['oldvalue']) {
// Everything is normal
$currentval = $item[$thold_data['name']] - $thold_data['oldvalue'];
} else {
// Possible overflow, see if its 32bit or 64bit
if ($thold_data['oldvalue'] > 4294967295) {
$currentval = (18446744073709551615 - $thold_data['oldvalue']) + $item[$thold_data['name']];
} else {
$currentval = (4294967295 - $thold_data['oldvalue']) + $item[$thold_data['name']];
}
}
$currentval = $currentval / $polling_interval;
/* assume counter reset if greater than max value */
if ($thold_data['rrd_maximum'] > 0 && $currentval > $thold_data['rrd_maximum']) {
$currentval = $item[$thold_data['name']] / $polling_interval;
} elseif ($thold_data['rrd_maximum'] == 0 && $currentval > 4.25E+9) {
$currentval = $item[$thold_data['name']] / $polling_interval;
}
} else {
$currentval = 0;
}
break;
case 3: // DERIVE
$currentval = ($item[$thold_data['name']] - $thold_data['oldvalue']) / $polling_interval;
break;
case 4: // ABSOLUTE
$currentval = $item[$thold_data['name']] / $polling_interval;
break;
case 1: // GAUGE
default:
$currentval = $item[$thold_data['name']];
break;
}
}
}
return $currentval;
}
function thold_calculate_expression($thold, $currentval, &$rrd_reindexed, &$rrd_time_reindexed) {
global $rpn_error;
/* set an rpn error flag */
$rpn_error = false;
/* operators to support */
$math = array('+', '-', '*', '/', '%', '^', 'ADDNAN', 'SIN', 'COS', 'LOG', 'EXP',
'SQRT', 'ATAN', 'ATAN2', 'FLOOR', 'CEIL', 'DEG2RAD', 'RAD2DEG', 'ABS');
$boolean = array('LT', 'LE', 'GT', 'GE', 'EQ', 'NE', 'UN', 'ISNF', 'IF', 'AND', 'OR');
$comparison = array('MIN', 'MAX', 'LIMIT');
$setops = array('SORT', 'REV', 'AVG');
$specvals = array('UNKN', 'INF', 'NEGINF', 'PREV', 'COUNT');
$stackops = array('DUP', 'POP', 'EXC');
$time = array('NOW', 'TIME', 'LTIME');
$spectypes = array('CURRENT_DATA_SOURCE','CURRENT_GRAPH_MINIMUM_VALUE',
'CURRENT_GRAPH_MINIMUM_VALUE','CURRENT_DS_MINIMUM_VALUE',
'CURRENT_DS_MAXIMUM_VALUE','VALUE_OF_HDD_TOTAL',
'ALL_DATA_SOURCES_NODUPS','ALL_DATA_SOURCES_DUPS');
/* our expression array */
$expression = explode(',', $thold['expression']);
/* out current data sources */
$data_sources = $rrd_reindexed[$thold['local_data_id']];
if (sizeof($data_sources)) {
foreach ($data_sources as $key => $value) {
$key = strtolower($key);
$nds[$key] = $value;
}
$data_sources = $nds;
}
/* replace all data tabs in the rpn with values */
if (sizeof($expression)) {
foreach ($expression as $key => $item) {
if (strpos($item, '|ds:') !== false) {
// Remove invalid characters
$item = str_replace('\\', '', $item);
$dsname = strtolower(trim(str_replace('|ds:', '', $item), " |\n\r"));
$thold_item = db_fetch_row_prepared('SELECT td.id, td.local_graph_id,
td.percent_ds, td.expression, td.data_type, td.cdef, td.local_data_id,
td.data_template_rrd_id, td.lastread, UNIX_TIMESTAMP(td.lasttime) AS lasttime,
td.oldvalue, dtr.data_source_name as name,
dtr.data_source_type_id, dtd.rrd_step, dtr.rrd_maximum
FROM thold_data AS td
LEFT JOIN data_template_rrd AS dtr
ON dtr.id = td.data_template_rrd_id
LEFT JOIN data_template_data AS dtd
ON dtd.local_data_id=td.local_data_id
WHERE dtr.data_source_name = ?
AND td.local_data_id = ?',
array($dsname, $thold['local_data_id']));
if (sizeof($thold_item)) {
$item = array();
$currenttime = 0;
$expression[$key] = thold_get_currentval($thold_item, $rrd_reindexed, $rrd_time_reindexed, $item, $currenttime);
} else {
$value = '';
if (read_config_option('dsstats_enable') == 'on') {
$value = db_fetch_cell_prepared('SELECT calculated
FROM data_source_stats_hourly_last
WHERE local_data_id = ?
AND rrd_name = ?',
array($thold['local_data_id'], $dsname));
}
if (empty($value) || $value == '-90909090909') {
$expression[$key] = get_current_value($thold['local_data_id'], $dsname);
} else {
$expression[$key] = $value;
}
}
if ($expression[$key] == '') $expression[$key] = '0';
} elseif (strpos($item, '|') !== false) {
// Remove invalid characters
$item = str_replace('\\', '', $item);
$gl = db_fetch_row_prepared('SELECT *
FROM graph_local
WHERE id = ?',
array($thold['local_graph_id']));
if (sizeof($gl)) {
$expression[$key] = thold_expand_title($thold, $gl['host_id'], $gl['snmp_query_id'], $gl['snmp_index'], $item);
} else {
$expression[$key] = '0';
cacti_log("WARNING: Query Replacement for '$item' Does Not Exist");
}
if ($expression[$key] == '') $expression[$key] = '0';
} else {
/* normal operator */
}
}
}
$processed_expression = $expression;
//cacti_log(implode(',', array_keys($data_sources)));
//cacti_log(implode(',', $data_sources));
//cacti_log(implode(',', $expression));
/* now let's process the RPN stack */
$x = count($expression);
if ($x == 0) return $currentval;
/* operation stack for RPN */
$stack = array();
/* current pointer in the RPN operations list */
$cursor = 0;
while($cursor < $x) {
$operator = strtoupper(trim($expression[$cursor]));
/* is the operator a data source */
if (is_numeric($operator)) {
//cacti_log("NOTE: Numeric '$operator'", false, "THOLD");
array_push($stack, $operator);
} elseif (array_key_exists($operator, $data_sources)) {
//cacti_log("NOTE: DS Value '$operator'", false, "THOLD");
thold_expression_ds_value($operator, $stack, $data_sources);
} elseif (in_array($operator, $comparison)) {
//cacti_log("NOTE: Compare '$operator'", false, "THOLD");
thold_expression_compare_rpn($operator, $stack);
} elseif (in_array($operator, $boolean)) {
//cacti_log("NOTE: Boolean '$operator'", false, "THOLD");
thold_expression_boolean_rpn($operator, $stack);
} elseif (in_array($operator, $math)) {
//cacti_log("NOTE: Math '$operator'", false, "THOLD");
thold_expression_math_rpn($operator, $stack);
} elseif (in_array($operator, $setops)) {
//cacti_log("NOTE: SetOps '$operator'", false, "THOLD");
thold_expression_setops_rpn($operator, $stack);
} elseif (in_array($operator, $specvals)) {
//cacti_log("NOTE: SpecVals '$operator'", false, "THOLD");
thold_expression_specvals_rpn($operator, $stack, $cursor + 2);
} elseif (in_array($operator, $stackops)) {
//cacti_log("NOTE: StackOps '$operator'", false, "THOLD");
thold_expression_stackops_rpn($operator, $stack);
} elseif (in_array($operator, $time)) {
//cacti_log("NOTE: Time '$operator'", false, "THOLD");
thold_expression_time_rpn($operator, $stack);
} elseif (in_array($operator, $spectypes)) {
//cacti_log("NOTE: SpecialTypes '$operator'", false, "THOLD");
thold_expression_specialtype_rpn($operator, $stack, $thold['local_data_id'], $currentval);
} else {
cacti_log("WARNING: Unsupported Field '$operator'", false, "THOLD");
$rpn_error = true;
}
$cursor++;
if ($rpn_error) {
cacti_log("ERROR: RPN Expression is invalid! THold:'" . $thold['thold_name'] . "', Value:'" . $currentval . "', Expression:'" . $thold['expression'] . "', Processed:'" . implode(',', $processed_expression) . "'", false, 'THOLD');
return 0;
}
}
return $stack[0];
}
function thold_expand_title($thold, $host_id, $snmp_query_id, $snmp_index, $string) {
if (strpos($string, '|query_') !== false && !empty($host_id)) {
$tenGEvalue = '';
if (strpos($string, '|query_ifHighSpeed|') !== false) {
$value = thold_substitute_snmp_query_data($string, $host_id, $snmp_query_id, $snmp_index, read_config_option('max_data_query_field_length'));
/* if we are trying to replace 10GE */
if ($value == 0) {
$tenGEvalue = read_config_option('thold_empty_if_speed_default');
}
} else {
$value = thold_substitute_snmp_query_data($string, $host_id, $snmp_query_id, $snmp_index, read_config_option('max_data_query_field_length'));
}
if ($value == '|query_ifHighSpeed|' && $tenGEvalue == '') {
$value = thold_substitute_snmp_query_data('|query_ifSpeed|', $host_id, $snmp_query_id, $snmp_index, read_config_option('max_data_query_field_length')) / 1000000;
if ($value == 0) {
$tenGEvalue = read_config_option('thold_empty_if_speed_default');
}
}
if ($tenGEvalue != '') {
$value = $tenGEvalue;
}
if (strpos($value, '|') !== false) {
cacti_log("WARNING: Expression Replacment for '$string' in THold '" . $thold['thold_name'] . "' Failed, A Reindex may be required!");
return '0';
}
return $value;
} elseif (strpos($string, '|host_') !== false && !empty($host_id)) {
return thold_substitute_host_data($string, '|', '|', $host_id);
} else {
return $string;
}
}
function thold_substitute_snmp_query_data($string, $host_id, $snmp_query_id, $snmp_index, $max_chars = 0) {
$field_name = trim(str_replace('|query_', '', $string),"| \n\r");
$snmp_cache_data = db_fetch_cell("SELECT field_value
FROM host_snmp_cache
WHERE host_id=$host_id
AND snmp_query_id=$snmp_query_id
AND snmp_index='$snmp_index'
AND field_name='$field_name'");
if ($snmp_cache_data != '') {
return $snmp_cache_data;
} else {
return $string;
}
}
function thold_substitute_host_data($string, $l_escape_string, $r_escape_string, $host_id) {
$field_name = trim(str_replace('|host_', '', $string),"| \n\r");
if (!isset($_SESSION['sess_host_cache_array'][$host_id])) {
$host = db_fetch_row_prepared('SELECT *
FROM host WHERE id = ?',
array($host_id));
$_SESSION['sess_host_cache_array'][$host_id] = $host;
}
if (isset($_SESSION['sess_host_cache_array'][$host_id][$field_name])) {
return $_SESSION['sess_host_cache_array'][$host_id][$field_name];
}
$string = str_replace($l_escape_string . 'host_management_ip' . $r_escape_string, $_SESSION['sess_host_cache_array'][$host_id]['hostname'], $string);
$temp = api_plugin_hook_function('substitute_host_data', array('string' => $string, 'l_escape_string' => $l_escape_string, 'r_escape_string' => $r_escape_string, 'host_id' => $host_id));
$string = $temp['string'];
return $string;
}
function thold_calculate_percent($thold, $currentval, $rrd_reindexed) {
$ds = $thold['percent_ds'];
if (isset($rrd_reindexed[$thold['local_data_id']][$ds])) {
$t = $rrd_reindexed[$thold['local_data_id']][$thold['percent_ds']];
if ($t != 0) {
$currentval = ($currentval / $t) * 100;
} else {
$currentval = 0;
}
} else {
$currentval = '';
}
return $currentval;
}
function get_allowed_thresholds($sql_where = '', $order_by = 'td.name', $limit = '', &$total_rows = 0, $user = 0, $graph_id = 0) {
if ($limit != '') {
$limit = "LIMIT $limit";
}
if ($order_by != '') {
$order_by = "ORDER BY $order_by";
}
if ($graph_id > 0) {
$sql_where .= (strlen($sql_where) ? ' AND ':' ') . " gl.id=$graph_id";
}
if (strlen($sql_where)) {
$sql_where = "WHERE $sql_where";
}
$i = 0;
$sql_having = '';
$sql_select = '';
$sql_join = '';
if (read_config_option('auth_method') != 0) {
if ($user == 0) {
$user = $_SESSION['sess_user_id'];
}
if (read_config_option('graph_auth_method') == 1) {
$sql_operator = 'OR';
} else {
$sql_operator = 'AND';
}
/* get policies for all groups and user */
$policies = db_fetch_assoc_prepared("SELECT uag.id,
'group' AS type, policy_graphs, policy_hosts, policy_graph_templates
FROM user_auth_group AS uag
INNER JOIN user_auth_group_members AS uagm
ON uag.id = uagm.group_id
WHERE uag.enabled = 'on' AND uagm.user_id = ?", array($user));
$policies[] = db_fetch_row_prepared("SELECT id, 'user' AS type, policy_graphs, policy_hosts, policy_graph_templates FROM user_auth WHERE id = ?", array($user));
foreach ($policies as $policy) {
if ($policy['policy_graphs'] == 1) {
$sql_having .= (strlen($sql_having) ? ' OR':'') . " (user$i IS NULL";
} else {
$sql_having .= (strlen($sql_having) ? ' OR':'') . " (user$i=" . $policy['id'];
}
$sql_join .= "LEFT JOIN user_auth_" . ($policy['type'] == 'user' ? '':'group_') . "perms AS uap$i ON (gl.id=uap$i.item_id AND uap$i.type=1) ";
$sql_select .= (strlen($sql_select) ? ', ':'') . "uap$i." . $policy['type'] . "_id AS user$i";
$i++;
if ($policy['policy_hosts'] == 1) {
$sql_having .= " OR (user$i IS NULL";
} else {
$sql_having .= " OR (user$i=" . $policy['id'];
}
$sql_join .= 'LEFT JOIN user_auth_' . ($policy['type'] == 'user' ? '':'group_') . "perms AS uap$i ON (gl.host_id=uap$i.item_id AND uap$i.type=3) ";
$sql_select .= (strlen($sql_select) ? ', ':'') . "uap$i." . $policy['type'] . "_id AS user$i";
$i++;
if ($policy['policy_graph_templates'] == 1) {
$sql_having .= " $sql_operator user$i IS NULL))";
} else {
$sql_having .= " $sql_operator user$i=" . $policy['id'] . '))';
}
$sql_join .= 'LEFT JOIN user_auth_' . ($policy['type'] == 'user' ? '':'group_') . "perms AS uap$i ON (gl.graph_template_id=uap$i.item_id AND uap$i.type=4) ";
$sql_select .= (strlen($sql_select) ? ', ':'') . "uap$i." . $policy['type'] . "_id AS user$i";
$i++;
}
$sql_having = "HAVING $sql_having";
$tholds = db_fetch_assoc("SELECT td.*, tt.name AS template_name,
$sql_select
FROM thold_data AS td
INNER JOIN graph_local AS gl
ON gl.id=td.local_graph_id
LEFT JOIN graph_templates AS gt
ON gt.id=gl.graph_template_id
LEFT JOIN host AS h
ON h.id=gl.host_id
LEFT JOIN thold_template AS tt
ON tt.id=td.thold_template_id
$sql_join
$sql_where