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add IPv6 support

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meeki007 2021-02-19 17:10:56 -05:00 committed by GitHub
parent 15048c728c
commit e49a19ba92
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1 changed files with 119 additions and 13 deletions
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132
io/ping/88-ping.js
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@ -6,7 +6,7 @@ module.exports = function(RED) {
function doPing(node, host, arrayMode) {
const defTimeout = 5000;
var ex, hostOptions, commandLineOptions;
var ex, ex6, hostOptions, commandLineOptions;
if (typeof host === "string") {
hostOptions = {
host: host,
@ -25,12 +25,33 @@ module.exports = function(RED) {
if (arrayMode) {
msg.ping = hostOptions
}
//User Selected Protocol
if (plat == "linux" || plat == "android") {
commandLineOptions = ["-n", "-w", timeoutS, "-c", "1"]
if (node.protocol === "IPv4") {
commandLineOptions = ["-n", "-4", "-w", timeoutS, "-c", "1"]; //IPv4
} else if (node.protocol === "IPv6") {
commandLineOptions = ["-n", "-6", "-w", timeoutS, "-c", "1"]; //IPv6
} else {
commandLineOptions = ["-n", "-w", timeoutS, "-c", "1"]; //Automatic
}
} else if (plat.match(/^win/)) {
commandLineOptions = ["-n", "1", "-w", hostOptions.timeout]
if (node.protocol === "IPv4") {
commandLineOptions = ["-n", "1", "-4", "-w", hostOptions.timeout]; //IPv4
} else if (node.protocol === "IPv6") {
commandLineOptions = ["-n", "1", "-6", "-w", hostOptions.timeout]; //IPv6
} else {
commandLineOptions = ["-n", "1", "-w", hostOptions.timeout]; //Automatic
}
} else if (plat == "darwin" || plat == "freebsd") {
commandLineOptions = ["-n", "-t", timeoutS, "-c", "1"]
if (node.protocol === "IPv4") {
commandLineOptions = ["-n", "-4", "-t", timeoutS, "-c", "1"]; //IPv4
} else if (node.protocol === "IPv6") {
commandLineOptions = ["-n", "-6", "-t", timeoutS, "-c", "1"]; //IPv6
} else {
commandLineOptions = ["-n", "-t", timeoutS, "-c", "1"]; //Automatic
}
} else {
node.error("Sorry - your platform - "+plat+" - is not recognised.", msg);
return; //dont pass go - just return!
@ -53,6 +74,23 @@ module.exports = function(RED) {
var fail = false;
//var regex = /from.*time.(.*)ms/;
var regex = /=.*[<|=]([0-9]*).*TTL|ttl..*=([0-9\.]*)/;
var tryPing6 = false;
//catch error msg from ping
ex.stderr.setEncoding('utf8');
ex.stderr.on("data", function (data) {
if (!data.includes('Usage')) { // !data: only get the error and not how to use the ping command
if (data.includes('invalid') && data.includes('6')) { //if IPv6 not supported in version of ping try ping6
tryPing6 = true;
//node.error(data, msg); // used for testing output of -6 on ping command. Keep this line untill out of beta testing please. Contact---> https://discourse.nodered.org/u/meeki007
} else if (data.includes('Network is unreachable')) {
node.error(data + " Please check that your service provider or network device has IPv6 enabled", msg);
} else {
node.error(data, msg);
}
}
});
ex.stdout.on("data", function (data) {
line += data.toString();
});
@ -72,20 +110,88 @@ module.exports = function(RED) {
}
});
ex.on("close", function (code) {
if (fail) { fail = false; return; }
var m = regex.exec(line)||"";
if (m !== "") {
if (m[1]) { res = Number(m[1]); }
if (m[2]) { res = Number(m[2]); }
if (tryPing6 === false) {
if (fail) { fail = false; return; }
var m = regex.exec(line)||"";
if (m !== "") {
if (m[1]) { res = Number(m[1]); }
if (m[2]) { res = Number(m[2]); }
}
if (code === 0) { msg.payload = res }
try { node.send(msg); }
catch(e) {console.warn(e)}
} else {
//fallback to ping6 for OS's that have not updated/out of date
if (plat == "linux" || plat == "android") {
commandLineOptions = ["-n", "-w", timeoutS, "-c", "1"];
} else if (plat == "darwin" || plat == "freebsd") {
commandLineOptions = ["-n", "-X", timeoutS, "-c", "1"] //NOTE: dont know if -X works on mac OSX
} else {
node.error("Sorry IPv6 on your platform - "+plat+" - is not supported.", msg);
}
//spawn with timeout in case of os issue
ex6 = spawn("ping6", [...commandLineOptions, hostOptions.host]);
//monitor every spawned process & SIGINT if too long
var spawnTout = setTimeout(() => {
node.log(`ping6 - Host '${hostOptions.host}' process timeout - sending SIGINT`)
try {
if (ex6 && ex6.pid) { ex6.kill("SIGINT"); }
}
catch(e) {console.warn(e); }
}, hostOptions.timeout+1000); //add 1s for grace
//catch error msg from ping6
ex6.stderr.setEncoding('utf8');
ex6.stderr.on("data", function (data) {
if (!data.includes('Usage')) { // !data: only get the error and not how to use the ping6 command
if (data.includes('Network is unreachable')) {
node.error(data + " Please check that your service provider or network device has IPv6 enabled", msg);
} else {
node.error(data, msg);
}
}
});
ex6.stdout.on("data", function (data) {
line += data.toString();
});
ex6.on("exit", function (err) {
clearTimeout(spawnTout);
});
ex6.on("error", function (err) {
fail = true;
if (err.code === "ENOENT") {
node.error(err.code + " ping6 command not found", msg);
}
else if (err.code === "EACCES") {
node.error(err.code + " can't run ping6 command", msg);
}
else {
node.error(err.code, msg);
}
});
ex6.on("close", function (code) {
if (fail) { fail = false; return; }
var m = regex.exec(line)||"";
if (m !== "") {
if (m[1]) { res = Number(m[1]); }
if (m[2]) { res = Number(m[2]); }
}
if (code === 0) { msg.payload = res }
try { node.send(msg); }
catch(e) {console.warn(e)}
});
}
if (code === 0) { msg.payload = res }
try { node.send(msg); }
catch(e) {console.warn(e)}
});
}
function PingNode(n) {
RED.nodes.createNode(this,n);
this.protocol = n.protocol||'Automatic';
this.mode = n.mode;
this.host = n.host;
this.timer = n.timer * 1000;
@ -132,4 +238,4 @@ module.exports = function(RED) {
});
}
RED.nodes.registerType("ping",PingNode);
}
}