Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com> #Fixes 2126pull/2223/head
Matthew Nickson
2 years ago
parent
4819112e25
commit
73835f3328
@ -1,199 +0,0 @@
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// https://github.com/ben-bradley/ping-lite/blob/master/ping-lite.js
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// Fixed on Windows
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const net = require("net");
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const spawn = require("child_process").spawn;
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const events = require("events");
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const fs = require("fs");
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const util = require("./util-server");
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module.exports = Ping;
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/**
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* Constructor for ping class
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* @param {string} host Host to ping
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* @param {object} [options] Options for the ping command
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* @param {array|string} [options.args] - Arguments to pass to the ping command
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*/
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function Ping(host, options) {
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if (!host) {
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throw new Error("You must specify a host to ping!");
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}
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this._host = host;
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this._options = options = (options || {});
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events.EventEmitter.call(this);
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const timeout = 10;
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if (util.WIN) {
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this._bin = "c:/windows/system32/ping.exe";
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this._args = (options.args) ? options.args : [ "-n", "1", "-w", timeout * 1000, host ];
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this._regmatch = /[><=]([0-9.]+?)ms/;
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} else if (util.LIN) {
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this._bin = "/bin/ping";
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const defaultArgs = [ "-n", "-w", timeout, "-c", "1", host ];
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if (net.isIPv6(host) || options.ipv6) {
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defaultArgs.unshift("-6");
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}
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this._args = (options.args) ? options.args : defaultArgs;
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this._regmatch = /=([0-9.]+?) ms/;
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} else if (util.MAC) {
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if (net.isIPv6(host) || options.ipv6) {
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this._bin = "/sbin/ping6";
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} else {
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this._bin = "/sbin/ping";
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}
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this._args = (options.args) ? options.args : [ "-n", "-t", timeout, "-c", "1", host ];
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this._regmatch = /=([0-9.]+?) ms/;
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} else if (util.BSD) {
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this._bin = "/sbin/ping";
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const defaultArgs = [ "-n", "-t", timeout, "-c", "1", host ];
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if (net.isIPv6(host) || options.ipv6) {
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defaultArgs.unshift("-6");
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}
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this._args = (options.args) ? options.args : defaultArgs;
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this._regmatch = /=([0-9.]+?) ms/;
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} else {
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throw new Error("Could not detect your ping binary.");
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}
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if (!fs.existsSync(this._bin)) {
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throw new Error("Could not detect " + this._bin + " on your system");
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}
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this._i = 0;
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return this;
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}
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Ping.prototype.__proto__ = events.EventEmitter.prototype;
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/**
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* Callback for send
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* @callback pingCB
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* @param {any} err Any error encountered
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* @param {number} ms Ping time in ms
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*/
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/**
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* Send a ping
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* @param {pingCB} callback Callback to call with results
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*/
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Ping.prototype.send = function (callback) {
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let self = this;
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callback = callback || function (err, ms) {
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if (err) {
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return self.emit("error", err);
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}
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return self.emit("result", ms);
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};
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let _ended;
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let _exited;
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let _errored;
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this._ping = spawn(this._bin, this._args, { windowsHide: true }); // spawn the binary
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this._ping.on("error", function (err) { // handle binary errors
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_errored = true;
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callback(err);
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});
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this._ping.stdout.on("data", function (data) { // log stdout
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if (util.WIN) {
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data = convertOutput(data);
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}
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this._stdout = (this._stdout || "") + data;
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});
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this._ping.stdout.on("end", function () {
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_ended = true;
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if (_exited && !_errored) {
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onEnd.call(self._ping);
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}
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});
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this._ping.stderr.on("data", function (data) { // log stderr
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if (util.WIN) {
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data = convertOutput(data);
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}
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this._stderr = (this._stderr || "") + data;
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});
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this._ping.on("exit", function (code) { // handle complete
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_exited = true;
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if (_ended && !_errored) {
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onEnd.call(self._ping);
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}
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});
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/**
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* @param {Function} callback
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*
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* Generated by Trelent
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*/
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function onEnd() {
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let stdout = this.stdout._stdout;
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let stderr = this.stderr._stderr;
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let ms;
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if (stderr) {
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return callback(new Error(stderr));
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}
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if (!stdout) {
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return callback(new Error("No stdout detected"));
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}
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ms = stdout.match(self._regmatch); // parse out the ##ms response
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ms = (ms && ms[1]) ? Number(ms[1]) : ms;
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callback(null, ms, stdout);
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}
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};
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/**
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* Ping every interval
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* @param {pingCB} callback Callback to call with results
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*/
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Ping.prototype.start = function (callback) {
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let self = this;
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this._i = setInterval(function () {
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self.send(callback);
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}, (self._options.interval || 5000));
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self.send(callback);
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};
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/** Stop sending pings */
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Ping.prototype.stop = function () {
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clearInterval(this._i);
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};
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/**
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* Try to convert to UTF-8 for Windows, as the ping's output on Windows is not UTF-8 and could be in other languages
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* Thank @pemassi
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* https://github.com/louislam/uptime-kuma/issues/570#issuecomment-941984094
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* @param {any} data
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* @returns {string}
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*/
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function convertOutput(data) {
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if (util.WIN) {
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if (data) {
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return util.convertToUTF8(data);
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}
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}
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return data;
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}
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