112 lines
2.7 KiB
JavaScript
112 lines
2.7 KiB
JavaScript
'use strict';
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/**
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* LICENSE MIT
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* (C) Daniel Zelisko
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* http://github.com/danielzzz/node-ping
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*
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* a simple wrapper for ping
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* Now with support of not only english Windows.
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*
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*/
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// System library
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var util = require('util');
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var net = require('net');
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var cp = require('child_process');
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var os = require('os');
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// 3rd-party library
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var Q = require('q');
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var __ = require('underscore');
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// Our library
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var builderFactory = require('./builder/factory');
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var parserFactory = require('./parser/factory');
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/**
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* Refer to probe()
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*/
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function _probe(addr, config) {
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// Do not reassign function argument
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var _config = config || {};
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if (_config.v6 === undefined) {
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_config.v6 = net.isIPv6(addr);
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}
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// Convert callback base system command to promise base
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var deferred = Q.defer();
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// Spawn a ping process
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var ping = null;
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var platform = os.platform();
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try {
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var argumentBuilder = builderFactory.createBuilder(platform);
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var pingExecutablePath = builderFactory.getExecutablePath(
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platform, _config.v6
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);
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var pingArgs = argumentBuilder.getCommandArguments(addr, _config);
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var spawnOptions = argumentBuilder.getSpawnOptions();
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ping = cp.spawn(pingExecutablePath, pingArgs, spawnOptions);
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} catch (err) {
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deferred.reject(err);
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return deferred.promise;
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}
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// Initial parser
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var parser = parserFactory.createParser(addr, platform, _config);
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// Register events from system ping
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ping.once('error', function () {
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var err = new Error(
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util.format(
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'ping.probe: %s. %s',
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'there was an error while executing the ping program. ',
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'Check the path or permissions...'
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)
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);
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deferred.reject(err);
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});
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// Cache all lines from the system ping
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var outstring = [];
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ping.stdout.on('data', function (data) {
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outstring.push(String(data));
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});
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// Parse lines we have on closing system ping
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ping.once('close', function () {
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// Merge lines we have and split it by \n
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var lines = outstring.join('').split('\n');
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// Parse line one by one
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__.each(lines, parser.eat, parser);
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// Get result
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var ret = parser.getResult();
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deferred.resolve(ret);
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});
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return deferred.promise;
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}
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/**
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* Class::PromisePing
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* @param {string} addr - Hostname or ip addres
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* @param {PingConfig} config - Configuration for command ping
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* @return {Promise}
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*/
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function probe(addr, config) {
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try {
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var probePromise = _probe(addr, config);
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return probePromise;
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} catch (error) {
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var errorPromise = Q.reject(error);
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return errorPromise;
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}
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}
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exports.probe = probe;
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