mirror of
https://github.com/louislam/uptime-kuma.git
synced 2024-11-24 07:14:04 +00:00
556 lines
15 KiB
JavaScript
556 lines
15 KiB
JavaScript
const tcpp = require("tcp-ping");
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const Ping = require("./ping-lite");
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const { R } = require("redbean-node");
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const { log, genSecret } = require("../src/util");
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const passwordHash = require("./password-hash");
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const { Resolver } = require("dns");
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const childProcess = require("child_process");
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const iconv = require("iconv-lite");
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const chardet = require("chardet");
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const mqtt = require("mqtt");
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const chroma = require("chroma-js");
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const { badgeConstants } = require("./config");
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// From ping-lite
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exports.WIN = /^win/.test(process.platform);
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exports.LIN = /^linux/.test(process.platform);
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exports.MAC = /^darwin/.test(process.platform);
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exports.FBSD = /^freebsd/.test(process.platform);
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exports.BSD = /bsd$/.test(process.platform);
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/**
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* Init or reset JWT secret
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* @returns {Promise<Bean>}
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*/
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exports.initJWTSecret = async () => {
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let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
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"jwtSecret",
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]);
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if (!jwtSecretBean) {
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jwtSecretBean = R.dispense("setting");
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jwtSecretBean.key = "jwtSecret";
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}
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jwtSecretBean.value = passwordHash.generate(genSecret());
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await R.store(jwtSecretBean);
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return jwtSecretBean;
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};
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/**
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* Send TCP request to specified hostname and port
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* @param {string} hostname Hostname / address of machine
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* @param {number} port TCP port to test
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* @returns {Promise<number>} Maximum time in ms rounded to nearest integer
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*/
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exports.tcping = function (hostname, port) {
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return new Promise((resolve, reject) => {
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tcpp.ping({
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address: hostname,
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port: port,
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attempts: 1,
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}, function (err, data) {
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if (err) {
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reject(err);
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}
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if (data.results.length >= 1 && data.results[0].err) {
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reject(data.results[0].err);
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}
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resolve(Math.round(data.max));
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});
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});
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};
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/**
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* Ping the specified machine
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* @param {string} hostname Hostname / address of machine
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* @returns {Promise<number>} Time for ping in ms rounded to nearest integer
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*/
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exports.ping = async (hostname) => {
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try {
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return await exports.pingAsync(hostname);
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} catch (e) {
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// If the host cannot be resolved, try again with ipv6
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if (e.message.includes("service not known")) {
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return await exports.pingAsync(hostname, true);
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} else {
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throw e;
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}
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}
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};
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/**
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* Ping the specified machine
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* @param {string} hostname Hostname / address of machine to ping
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* @param {boolean} ipv6 Should IPv6 be used?
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* @returns {Promise<number>} Time for ping in ms rounded to nearest integer
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*/
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exports.pingAsync = function (hostname, ipv6 = false) {
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return new Promise((resolve, reject) => {
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const ping = new Ping(hostname, {
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ipv6
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});
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ping.send(function (err, ms, stdout) {
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if (err) {
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reject(err);
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} else if (ms === null) {
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reject(new Error(stdout));
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} else {
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resolve(Math.round(ms));
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}
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});
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});
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};
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/**
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* MQTT Monitor
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* @param {string} hostname Hostname / address of machine to test
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* @param {string} topic MQTT topic
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* @param {string} okMessage Expected result
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* @param {Object} [options={}] MQTT options. Contains port, username,
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* password and interval (interval defaults to 20)
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* @returns {Promise<string>}
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*/
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exports.mqttAsync = function (hostname, topic, okMessage, options = {}) {
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return new Promise((resolve, reject) => {
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const { port, username, password, interval = 20 } = options;
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// Adds MQTT protocol to the hostname if not already present
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if (!/^(?:http|mqtt)s?:\/\//.test(hostname)) {
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hostname = "mqtt://" + hostname;
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}
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const timeoutID = setTimeout(() => {
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log.debug("mqtt", "MQTT timeout triggered");
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client.end();
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reject(new Error("Timeout"));
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}, interval * 1000 * 0.8);
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log.debug("mqtt", "MQTT connecting");
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let client = mqtt.connect(hostname, {
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port,
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username,
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password
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});
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client.on("connect", () => {
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log.debug("mqtt", "MQTT connected");
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try {
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log.debug("mqtt", "MQTT subscribe topic");
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client.subscribe(topic);
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} catch (e) {
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client.end();
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clearTimeout(timeoutID);
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reject(new Error("Cannot subscribe topic"));
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}
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});
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client.on("error", (error) => {
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client.end();
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clearTimeout(timeoutID);
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reject(error);
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});
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client.on("message", (messageTopic, message) => {
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if (messageTopic === topic) {
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client.end();
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clearTimeout(timeoutID);
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if (okMessage != null && okMessage !== "" && message.toString() !== okMessage) {
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reject(new Error(`Message Mismatch - Topic: ${messageTopic}; Message: ${message.toString()}`));
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} else {
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resolve(`Topic: ${messageTopic}; Message: ${message.toString()}`);
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}
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}
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});
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});
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};
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/**
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* Resolves a given record using the specified DNS server
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* @param {string} hostname The hostname of the record to lookup
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* @param {string} resolverServer The DNS server to use
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* @param {string} rrtype The type of record to request
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* @returns {Promise<(string[]|Object[]|Object)>}
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*/
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exports.dnsResolve = function (hostname, resolverServer, rrtype) {
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const resolver = new Resolver();
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resolver.setServers([ resolverServer ]);
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return new Promise((resolve, reject) => {
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if (rrtype === "PTR") {
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resolver.reverse(hostname, (err, records) => {
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if (err) {
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reject(err);
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} else {
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resolve(records);
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}
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});
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} else {
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resolver.resolve(hostname, rrtype, (err, records) => {
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if (err) {
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reject(err);
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} else {
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resolve(records);
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}
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});
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}
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});
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};
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/**
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* Retrieve value of setting based on key
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* @param {string} key Key of setting to retrieve
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* @returns {Promise<any>} Value
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*/
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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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]);
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try {
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const v = JSON.parse(value);
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log.debug("util", `Get Setting: ${key}: ${v}`);
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return v;
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} catch (e) {
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return value;
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}
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};
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/**
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* Sets the specified setting to specifed value
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* @param {string} key Key of setting to set
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* @param {any} value Value to set to
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* @param {?string} type Type of setting
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* @returns {Promise<void>}
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*/
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exports.setSetting = async function (key, value, type = null) {
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let bean = await R.findOne("setting", " `key` = ? ", [
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key,
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]);
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if (!bean) {
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bean = R.dispense("setting");
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bean.key = key;
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}
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bean.type = type;
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bean.value = JSON.stringify(value);
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await R.store(bean);
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};
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/**
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* Get settings based on type
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* @param {?string} type The type of setting
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* @returns {Promise<Bean>}
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*/
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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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]);
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let result = {};
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for (let row of list) {
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try {
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result[row.key] = JSON.parse(row.value);
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} catch (e) {
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result[row.key] = row.value;
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}
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}
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return result;
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};
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/**
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* Set settings based on type
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* @param {?string} type Type of settings to set
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* @param {Object} data Values of settings
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* @returns {Promise<void>}
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*/
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exports.setSettings = async function (type, data) {
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let keyList = Object.keys(data);
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let promiseList = [];
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for (let key of keyList) {
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let bean = await R.findOne("setting", " `key` = ? ", [
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key
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]);
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if (bean == null) {
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bean = R.dispense("setting");
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bean.type = type;
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bean.key = key;
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}
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if (bean.type === type) {
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bean.value = JSON.stringify(data[key]);
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promiseList.push(R.store(bean));
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}
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}
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await Promise.all(promiseList);
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};
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// ssl-checker by @dyaa
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//https://github.com/dyaa/ssl-checker/blob/master/src/index.ts
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/**
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* Get number of days between two dates
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* @param {Date} validFrom Start date
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* @param {Date} validTo End date
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* @returns {number}
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*/
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const getDaysBetween = (validFrom, validTo) =>
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Math.round(Math.abs(+validFrom - +validTo) / 8.64e7);
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/**
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* Get days remaining from a time range
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* @param {Date} validFrom Start date
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* @param {Date} validTo End date
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* @returns {number}
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*/
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const getDaysRemaining = (validFrom, validTo) => {
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const daysRemaining = getDaysBetween(validFrom, validTo);
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if (new Date(validTo).getTime() < new Date().getTime()) {
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return -daysRemaining;
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}
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return daysRemaining;
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};
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/**
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* Fix certificate info for display
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* @param {Object} info The chain obtained from getPeerCertificate()
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* @returns {Object} An object representing certificate information
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*/
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const parseCertificateInfo = function (info) {
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let link = info;
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let i = 0;
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const existingList = {};
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while (link) {
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log.debug("cert", `[${i}] ${link.fingerprint}`);
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if (!link.valid_from || !link.valid_to) {
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break;
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}
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link.validTo = new Date(link.valid_to);
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link.validFor = link.subjectaltname?.replace(/DNS:|IP Address:/g, "").split(", ");
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link.daysRemaining = getDaysRemaining(new Date(), link.validTo);
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existingList[link.fingerprint] = true;
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// Move up the chain until loop is encountered
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if (link.issuerCertificate == null) {
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break;
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} else if (link.issuerCertificate.fingerprint in existingList) {
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log.debug("cert", `[Last] ${link.issuerCertificate.fingerprint}`);
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link.issuerCertificate = null;
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break;
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} else {
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link = link.issuerCertificate;
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}
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// Should be no use, but just in case.
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if (i > 500) {
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throw new Error("Dead loop occurred in parseCertificateInfo");
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}
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i++;
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}
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return info;
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};
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/**
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* Check if certificate is valid
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* @param {Object} res Response object from axios
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* @returns {Object} Object containing certificate information
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*/
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exports.checkCertificate = function (res) {
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const info = res.request.res.socket.getPeerCertificate(true);
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const valid = res.request.res.socket.authorized || false;
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log.debug("cert", "Parsing Certificate Info");
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const parsedInfo = parseCertificateInfo(info);
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return {
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valid: valid,
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certInfo: parsedInfo
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};
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};
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/**
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* Check if the provided status code is within the accepted ranges
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* @param {string} status The status code to check
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* @param {string[]} acceptedCodes An array of accepted status codes
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* @returns {boolean} True if status code within range, false otherwise
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* @throws {Error} Will throw an error if the provided status code is not a valid range string or code string
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*/
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exports.checkStatusCode = function (status, acceptedCodes) {
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if (acceptedCodes == null || acceptedCodes.length === 0) {
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return false;
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}
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for (const codeRange of acceptedCodes) {
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const codeRangeSplit = codeRange.split("-").map(string => parseInt(string));
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if (codeRangeSplit.length === 1) {
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if (status === codeRangeSplit[0]) {
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return true;
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}
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} else if (codeRangeSplit.length === 2) {
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if (status >= codeRangeSplit[0] && status <= codeRangeSplit[1]) {
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return true;
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}
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} else {
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throw new Error("Invalid status code range");
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}
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}
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return false;
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};
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/**
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* Get total number of clients in room
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* @param {Server} io Socket server instance
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* @param {string} roomName Name of room to check
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* @returns {number}
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*/
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exports.getTotalClientInRoom = (io, roomName) => {
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const sockets = io.sockets;
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if (!sockets) {
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return 0;
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}
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const adapter = sockets.adapter;
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if (!adapter) {
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return 0;
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}
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const room = adapter.rooms.get(roomName);
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if (room) {
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return room.size;
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} else {
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return 0;
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}
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};
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/**
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* Allow CORS all origins if development
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* @param {Object} res Response object from axios
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*/
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exports.allowDevAllOrigin = (res) => {
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if (process.env.NODE_ENV === "development") {
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exports.allowAllOrigin(res);
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}
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};
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/**
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* Allow CORS all origins
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* @param {Object} res Response object from axios
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*/
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exports.allowAllOrigin = (res) => {
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res.header("Access-Control-Allow-Origin", "*");
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res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
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};
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/**
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* Check if a user is logged in
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* @param {Socket} socket Socket instance
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*/
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exports.checkLogin = (socket) => {
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if (!socket.userID) {
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throw new Error("You are not logged in.");
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}
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};
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/**
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* For logged-in users, double-check the password
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* @param {Socket} socket Socket.io instance
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* @param {string} currentPassword
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* @returns {Promise<Bean>}
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*/
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exports.doubleCheckPassword = async (socket, currentPassword) => {
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if (typeof currentPassword !== "string") {
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throw new Error("Wrong data type?");
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}
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let user = await R.findOne("user", " id = ? AND active = 1 ", [
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socket.userID,
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]);
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if (!user || !passwordHash.verify(currentPassword, user.password)) {
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throw new Error("Incorrect current password");
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}
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return user;
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};
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/** Start Unit tests */
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exports.startUnitTest = async () => {
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console.log("Starting unit test...");
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const npm = /^win/.test(process.platform) ? "npm.cmd" : "npm";
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const child = childProcess.spawn(npm, [ "run", "jest" ]);
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child.stdout.on("data", (data) => {
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console.log(data.toString());
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});
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child.stderr.on("data", (data) => {
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console.log(data.toString());
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});
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child.on("close", function (code) {
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console.log("Jest exit code: " + code);
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process.exit(code);
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});
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};
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/**
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* Convert unknown string to UTF8
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* @param {Uint8Array} body Buffer
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* @returns {string}
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*/
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exports.convertToUTF8 = (body) => {
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const guessEncoding = chardet.detect(body);
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const str = iconv.decode(body, guessEncoding);
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return str.toString();
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};
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/**
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* Returns a color code in hex format based on a given percentage:
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* 0% => hue = 10 => red
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* 100% => hue = 90 => green
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*
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* @param {number} percentage float, 0 to 1
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* @param {number} maxHue
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* @param {number} minHue, int
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* @returns {string}, hex value
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*/
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exports.percentageToColor = (percentage, maxHue = 90, minHue = 10) => {
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const hue = percentage * (maxHue - minHue) + minHue;
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try {
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return chroma(`hsl(${hue}, 90%, 40%)`).hex();
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} catch (err) {
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return badgeConstants.naColor;
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}
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};
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/**
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* Joins and array of string to one string after filtering out empty values
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*
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* @param {string[]} parts
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* @param {string} connector
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* @returns {string}
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*/
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exports.filterAndJoin = (parts, connector = "") => {
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return parts.filter((part) => !!part && part !== "").join(connector);
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};
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