mirror of
https://github.com/louislam/uptime-kuma.git
synced 2024-09-09 10:52:23 +00:00
150 lines
4.7 KiB
JavaScript
150 lines
4.7 KiB
JavaScript
/*
|
|
* Simple DNS Server
|
|
* For testing DNS monitoring type, dev only
|
|
*/
|
|
const dns2 = require("dns2");
|
|
|
|
const { Packet } = dns2;
|
|
|
|
const server = dns2.createServer({
|
|
udp: true
|
|
});
|
|
|
|
server.on("request", (request, send, rinfo) => {
|
|
for (let question of request.questions) {
|
|
console.log(question.name, type(question.type), question.class);
|
|
|
|
const response = Packet.createResponseFromRequest(request);
|
|
|
|
if (question.name === "existing.com") {
|
|
|
|
if (question.type === Packet.TYPE.A) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
address: "1.2.3.4"
|
|
});
|
|
} else if (question.type === Packet.TYPE.AAAA) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
address: "fe80::::1234:5678:abcd:ef00",
|
|
});
|
|
} else if (question.type === Packet.TYPE.CNAME) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
domain: "cname1.existing.com",
|
|
});
|
|
} else if (question.type === Packet.TYPE.MX) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
exchange: "mx1.existing.com",
|
|
priority: 5
|
|
});
|
|
} else if (question.type === Packet.TYPE.NS) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
ns: "ns1.existing.com",
|
|
});
|
|
} else if (question.type === Packet.TYPE.SOA) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
primary: "existing.com",
|
|
admin: "admin@existing.com",
|
|
serial: 2021082701,
|
|
refresh: 300,
|
|
retry: 3,
|
|
expiration: 10,
|
|
minimum: 10,
|
|
});
|
|
} else if (question.type === Packet.TYPE.SRV) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
priority: 5,
|
|
weight: 5,
|
|
port: 8080,
|
|
target: "srv1.existing.com",
|
|
});
|
|
} else if (question.type === Packet.TYPE.TXT) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
data: "#v=spf1 include:_spf.existing.com ~all",
|
|
});
|
|
} else if (question.type === Packet.TYPE.CAA) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
flags: 0,
|
|
tag: "issue",
|
|
value: "ca.existing.com",
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
if (question.name === "4.3.2.1.in-addr.arpa") {
|
|
if (question.type === Packet.TYPE.PTR) {
|
|
response.answers.push({
|
|
name: question.name,
|
|
type: question.type,
|
|
class: question.class,
|
|
ttl: 300,
|
|
domain: "ptr1.existing.com",
|
|
});
|
|
}
|
|
}
|
|
|
|
send(response);
|
|
}
|
|
});
|
|
|
|
server.on("listening", () => {
|
|
console.log("Listening");
|
|
console.log(server.addresses());
|
|
});
|
|
|
|
server.on("close", () => {
|
|
console.log("server closed");
|
|
});
|
|
|
|
server.listen({
|
|
udp: 5300
|
|
});
|
|
|
|
/**
|
|
* Get human readable request type from request code
|
|
* @param {number} code Request code to translate
|
|
* @returns {string} Human readable request type
|
|
*/
|
|
function type(code) {
|
|
for (let name in Packet.TYPE) {
|
|
if (Packet.TYPE[name] === code) {
|
|
return name;
|
|
}
|
|
}
|
|
}
|