index.js

/*
 * Copyright (c) 2017, Anthony DeDominic <adedomin@gmail.com>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

'use strict';

module.exports = function(input, options) {

    if (!options) options = {};
    if (!input) return;

    var perfs = '';
    // long perfdata
    input.split('\n').forEach((line) => {
        perfs += line.split('|')[1] || '';
    });
    input = perfs.trim();

    if (input === '') return;

    // 'label'=value[UOM];[warn];[crit];[min];[max]
    // splits by label & values
    var perfdatas = input.split(/\s+(?=(?:[^']*['][^']*['])*[^']*$)/);

    var err = null;

    var perf;
    if (!options.flatten) perf = {};
    else perf = [];
    perfdatas.find(perfdata => {
        perfdata = perfdata.split('=');
        var label = perfdata[0];
        if (!perfdata[1]) return err = 'invalid perfdata, no values';
        var values = perfdata[1].split(';');

        if (!values[0]) return err = 'invalid perfdata, no primary value';
        var value_oum = values[0].match(/(\d+(?:\.\d+)?)\s*(\D+)?/);
        if (!value_oum) return err = 'primary value is not a number';

        if (options.flatten) {
            perf.push({
                label,
                oum: value_oum[2],
                value: +value_oum[1],
                warn: +values[1],
                crit: +values[2],
                min: +values[3],
                max: +values[4],
            });
        }
        else {
            perf[label] = {
                oum: value_oum[2],
                value: +value_oum[1],
                warn: +values[1],
                crit: +values[2],
                min: +values[3],
                max: +values[4],
            };
        }
        return undefined;
    });

    if (err) {
        if (options.throwErr)
            throw Error(err);
        return;
    }
    return perf;
};