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83 lines
2.5 KiB
PHP
83 lines
2.5 KiB
PHP
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<?php
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/**
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* wireless-sensor.inc.php
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*
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* Common file for Wireless Sensor Graphs
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*
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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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* @package LibreNMS
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* @link http://librenms.org
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* @copyright 2017 Tony Murray
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* @author Tony Murray <murraytony@gmail.com>
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*/
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require 'includes/graphs/common.inc.php';
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// escape % characters
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$unit = preg_replace('/(?<!%)%(?!%)/', '%%', $unit);
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if ($unit_long == $sensor['sensor_descr']) {
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$unit_long = '';
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}
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$col_w = 7 + strlen($unit);
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$sensor_descr_fixed = rrdtool_escape($sensor['sensor_descr'], 28);
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$rrd_options .= " COMMENT:'". str_pad($unit_long, 35) . str_pad("Cur", $col_w). str_pad("Min", $col_w) . "Max\\n'";
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$rrd_options .= " DEF:sensor=$rrd_filename:sensor:AVERAGE";
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$num = '%5.2lf'; // default: float
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$output_def = 'sensor';
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$factor = 1;
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if ($unit === '') {
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$num = '%5.0lf';
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} elseif ($unit == 'bps') {
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$num = '%5.3lf%s';
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} elseif ($unit == 'Hz') {
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$num = '%5.3lf%s';
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$factor = 1000000;
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$output_def = 'sensorhz';
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$rrd_options .= " CDEF:$output_def=sensor,$factor,*";
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} elseif ($unit == 'm') {
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$num = '%5.3lf%s';
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$factor = 1000;
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$output_def = 'sensorm';
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$rrd_options .= " CDEF:$output_def=sensor,$factor,*";
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}
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$rrd_options .= " LINE1.5:$output_def#0000cc:'$sensor_descr_fixed'";
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if (isset($scale_min) && $scale_min >= 0) {
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$rrd_options .= " AREA:$output_def#0000cc55";
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}
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// ---- limits ----
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if ($vars['width'] > 300) {
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if (is_numeric($sensor['sensor_limit'])) {
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$rrd_options .= ' LINE1:'.$sensor['sensor_limit']*$factor.'#cc000060::dashes';
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}
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if (is_numeric($sensor['sensor_limit_low'])) {
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$rrd_options .= ' LINE1:'.$sensor['sensor_limit_low']*$factor.'#cc000060::dashes';
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}
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}
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// ---- legend ----
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$rrd_options .= " GPRINT:$output_def:LAST:'$num$unit'";
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$rrd_options .= " GPRINT:$output_def:MIN:'$num$unit'";
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$rrd_options .= " GPRINT:$output_def:MAX:'$num$unit'\\l";
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