uptime-kuma/server/util-server.js

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const tcpp = require("tcp-ping");
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const Ping = require("./ping-lite");
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const { R } = require("redbean-node");
const { debug } = require("../src/util");
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const passwordHash = require("./password-hash");
const dayjs = require("dayjs");
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const { Resolver } = require("dns");
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/**
* Init or reset JWT secret
* @returns {Promise<Bean>}
*/
exports.initJWTSecret = async () => {
let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
"jwtSecret",
]);
if (! jwtSecretBean) {
jwtSecretBean = R.dispense("setting");
jwtSecretBean.key = "jwtSecret";
}
jwtSecretBean.value = passwordHash.generate(dayjs() + "");
await R.store(jwtSecretBean);
return jwtSecretBean;
}
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exports.tcping = function (hostname, port) {
return new Promise((resolve, reject) => {
tcpp.ping({
address: hostname,
port: port,
attempts: 1,
}, function (err, data) {
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if (err) {
reject(err);
}
if (data.results.length >= 1 && data.results[0].err) {
reject(data.results[0].err);
}
resolve(Math.round(data.max));
});
});
}
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exports.ping = async (hostname) => {
try {
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return await exports.pingAsync(hostname);
} catch (e) {
// If the host cannot be resolved, try again with ipv6
if (e.message.includes("service not known")) {
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return await exports.pingAsync(hostname, true);
} else {
throw e;
}
}
}
exports.pingAsync = function (hostname, ipv6 = false) {
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return new Promise((resolve, reject) => {
const ping = new Ping(hostname, {
ipv6
});
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ping.send(function (err, ms, stdout) {
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if (err) {
reject(err);
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} else if (ms === null) {
reject(new Error(stdout))
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} else {
resolve(Math.round(ms))
}
});
});
}
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exports.dnsResolve = function (hostname, resolver_server, rrtype) {
const resolver = new Resolver();
resolver.setServers([resolver_server]);
return new Promise((resolve, reject) => {
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if (rrtype == "PTR") {
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resolver.reverse(hostname, (err, records) => {
if (err) {
reject(err);
} else {
resolve(records);
}
});
} else {
resolver.resolve(hostname, rrtype, (err, records) => {
if (err) {
reject(err);
} else {
resolve(records);
}
});
}
})
}
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exports.setting = async function (key) {
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let value = await R.getCell("SELECT `value` FROM setting WHERE `key` = ? ", [
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key,
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]);
try {
const v = JSON.parse(value);
debug(`Get Setting: ${key}: ${v}`)
return v;
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} catch (e) {
return value;
}
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}
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exports.setSetting = async function (key, value) {
let bean = await R.findOne("setting", " `key` = ? ", [
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key,
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])
if (!bean) {
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bean = R.dispense("setting")
bean.key = key;
}
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bean.value = JSON.stringify(value);
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await R.store(bean)
}
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exports.getSettings = async function (type) {
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let list = await R.getAll("SELECT `key`, `value` FROM setting WHERE `type` = ? ", [
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type,
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])
let result = {};
for (let row of list) {
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try {
result[row.key] = JSON.parse(row.value);
} catch (e) {
result[row.key] = row.value;
}
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}
return result;
}
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exports.setSettings = async function (type, data) {
let keyList = Object.keys(data);
let promiseList = [];
for (let key of keyList) {
let bean = await R.findOne("setting", " `key` = ? ", [
key
]);
if (bean == null) {
bean = R.dispense("setting");
bean.type = type;
bean.key = key;
}
if (bean.type === type) {
bean.value = JSON.stringify(data[key]);
promiseList.push(R.store(bean))
}
}
await Promise.all(promiseList);
}
// ssl-checker by @dyaa
// param: res - response object from axios
// return an object containing the certificate information
const getDaysBetween = (validFrom, validTo) =>
Math.round(Math.abs(+validFrom - +validTo) / 8.64e7);
const getDaysRemaining = (validFrom, validTo) => {
const daysRemaining = getDaysBetween(validFrom, validTo);
if (new Date(validTo).getTime() < new Date().getTime()) {
return -daysRemaining;
}
return daysRemaining;
};
exports.checkCertificate = function (res) {
const {
valid_from,
valid_to,
subjectaltname,
issuer,
fingerprint,
} = res.request.res.socket.getPeerCertificate(false);
if (!valid_from || !valid_to || !subjectaltname) {
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throw {
message: "No TLS certificate in response",
};
}
const valid = res.request.res.socket.authorized || false;
const validTo = new Date(valid_to);
const validFor = subjectaltname
.replace(/DNS:|IP Address:/g, "")
.split(", ");
const daysRemaining = getDaysRemaining(new Date(), validTo);
return {
valid,
validFor,
validTo,
daysRemaining,
issuer,
fingerprint,
};
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}
// Check if the provided status code is within the accepted ranges
// Param: status - the status code to check
// Param: accepted_codes - an array of accepted status codes
// Return: true if the status code is within the accepted ranges, false otherwise
// Will throw an error if the provided status code is not a valid range string or code string
exports.checkStatusCode = function (status, accepted_codes) {
if (accepted_codes == null || accepted_codes.length === 0) {
return false;
}
for (const code_range of accepted_codes) {
const code_range_split = code_range.split("-").map(string => parseInt(string));
if (code_range_split.length === 1) {
if (status === code_range_split[0]) {
return true;
}
} else if (code_range_split.length === 2) {
if (status >= code_range_split[0] && status <= code_range_split[1]) {
return true;
}
} else {
throw new Error("Invalid status code range");
}
}
return false;
}