uptime-kuma/server/model/monitor.js

267 lines
8.2 KiB
JavaScript
Raw Normal View History

2021-07-01 06:03:06 +00:00
2021-06-25 13:55:49 +00:00
const dayjs = require("dayjs");
2021-06-27 08:10:55 +00:00
const utc = require('dayjs/plugin/utc')
var timezone = require('dayjs/plugin/timezone')
dayjs.extend(utc)
dayjs.extend(timezone)
const axios = require("axios");
2021-07-01 09:00:23 +00:00
const {tcping, ping} = require("../util-server");
2021-06-27 08:10:55 +00:00
const {R} = require("redbean-node");
2021-06-25 13:55:49 +00:00
const {BeanModel} = require("redbean-node/dist/bean-model");
const {Notification} = require("../notification")
2021-06-27 08:10:55 +00:00
/**
* status:
* 0 = DOWN
* 1 = UP
*/
2021-06-25 13:55:49 +00:00
class Monitor extends BeanModel {
async toJSON() {
let notificationIDList = {};
let list = await R.find("monitor_notification", " monitor_id = ? ", [
this.id
])
for (let bean of list) {
notificationIDList[bean.notification_id] = true;
}
2021-06-25 13:55:49 +00:00
return {
id: this.id,
name: this.name,
url: this.url,
2021-07-01 06:03:06 +00:00
hostname: this.hostname,
port: this.port,
maxretries: this.maxretries,
2021-07-01 05:11:16 +00:00
weight: this.weight,
2021-06-25 13:55:49 +00:00
active: this.active,
type: this.type,
interval: this.interval,
2021-07-01 09:19:28 +00:00
keyword: this.keyword,
notificationIDList
2021-06-25 13:55:49 +00:00
};
}
start(io) {
2021-06-29 08:06:20 +00:00
let previousBeat = null;
let retries = 0;
2021-06-29 08:06:20 +00:00
2021-06-27 08:10:55 +00:00
const beat = async () => {
2021-06-29 08:06:20 +00:00
if (! previousBeat) {
previousBeat = await R.findOne("heartbeat", " monitor_id = ? ORDER BY time DESC", [
this.id
])
}
2021-06-27 08:10:55 +00:00
let bean = R.dispense("heartbeat")
bean.monitor_id = this.id;
bean.time = R.isoDateTime(dayjs.utc());
bean.status = 0;
// Duration
if (previousBeat) {
bean.duration = dayjs(bean.time).diff(dayjs(previousBeat.time), 'second');
} else {
bean.duration = 0;
}
2021-06-27 08:10:55 +00:00
try {
2021-07-01 09:19:28 +00:00
if (this.type === "http" || this.type === "keyword") {
2021-06-27 08:10:55 +00:00
let startTime = dayjs().valueOf();
let res = await axios.get(this.url, {
headers: { 'User-Agent':'Uptime-Kuma' }
})
2021-06-27 08:10:55 +00:00
bean.msg = `${res.status} - ${res.statusText}`
bean.ping = dayjs().valueOf() - startTime;
2021-07-01 09:19:28 +00:00
if (this.type === "http") {
bean.status = 1;
} else {
2021-07-12 02:52:41 +00:00
let data = res.data;
// Convert to string for object/array
if (typeof data !== "string") {
data = JSON.stringify(data)
}
if (data.includes(this.keyword)) {
2021-07-01 09:19:28 +00:00
bean.msg += ", keyword is found"
bean.status = 1;
} else {
throw new Error(bean.msg + ", but keyword is not found")
}
}
2021-07-01 06:03:06 +00:00
} else if (this.type === "port") {
bean.ping = await tcping(this.hostname, this.port);
2021-07-01 13:47:14 +00:00
bean.msg = ""
2021-07-01 06:03:06 +00:00
bean.status = 1;
2021-07-01 09:00:23 +00:00
} else if (this.type === "ping") {
bean.ping = await ping(this.hostname);
2021-07-01 13:47:14 +00:00
bean.msg = ""
2021-07-01 09:00:23 +00:00
bean.status = 1;
2021-06-27 08:10:55 +00:00
}
retries = 0;
2021-06-27 08:10:55 +00:00
} catch (error) {
if ((this.maxretries > 0) && (retries < this.maxretries)) {
retries++;
bean.status = 2;
}
2021-06-27 08:10:55 +00:00
bean.msg = error.message;
}
// Mark as important if status changed, ignore pending pings,
// Don't notify if disrupted changes to up
2021-07-22 18:25:03 +00:00
if ((!previousBeat) || ((previousBeat.status !== bean.status) && bean.status !== 2 && !(previousBeat.status === 2 && bean.status !== 0))) {
2021-06-29 08:06:20 +00:00
bean.important = true;
// Do not send if first beat is UP
if (previousBeat || bean.status !== 1) {
let notificationList = await R.getAll(`SELECT notification.* FROM notification, monitor_notification WHERE monitor_id = ? AND monitor_notification.notification_id = notification.id `, [
this.id
])
let text;
if (bean.status === 1) {
text = "✅ Up"
} else {
text = "🔴 Down"
}
let msg = `[${this.name}] [${text}] ${bean.msg}`;
for(let notification of notificationList) {
try {
await Notification.send(JSON.parse(notification.config), msg, await this.toJSON(), bean.toJSON())
} catch (e) {
console.error("Cannot send notification to " + notification.name)
}
}
}
2021-06-29 08:06:20 +00:00
} else {
bean.important = false;
}
2021-07-20 22:41:38 +00:00
if (bean.status === 1) {
console.info(`Monitor #${this.id} '${this.name}': Successful Response: ${bean.ping} ms | Interval: ${this.interval} seconds | Type: ${this.type}`)
} else {
console.warn(`Monitor #${this.id} '${this.name}': Failing: ${bean.msg} | Type: ${this.type}`)
}
2021-06-29 08:06:20 +00:00
io.to(this.user_id).emit("heartbeat", bean.toJSON());
2021-06-27 08:10:55 +00:00
await R.store(bean)
2021-07-01 06:03:06 +00:00
Monitor.sendStats(io, this.id, this.user_id)
2021-06-29 08:06:20 +00:00
previousBeat = bean;
2021-06-25 13:55:49 +00:00
}
beat();
this.heartbeatInterval = setInterval(beat, this.interval * 1000);
}
stop() {
clearInterval(this.heartbeatInterval)
}
2021-06-30 13:04:58 +00:00
static async sendStats(io, monitorID, userID) {
Monitor.sendAvgPing(24, io, monitorID, userID);
2021-07-01 05:11:16 +00:00
Monitor.sendUptime(24, io, monitorID, userID);
Monitor.sendUptime(24 * 30, io, monitorID, userID);
2021-06-30 13:04:58 +00:00
}
2021-07-01 05:11:16 +00:00
/**
*
* @param duration : int Hours
*/
2021-06-30 13:04:58 +00:00
static async sendAvgPing(duration, io, monitorID, userID) {
let avgPing = parseInt(await R.getCell(`
SELECT AVG(ping)
FROM heartbeat
2021-07-10 04:04:40 +00:00
WHERE time > DATETIME('now', ? || ' hours')
2021-07-01 05:11:16 +00:00
AND ping IS NOT NULL
2021-06-30 13:04:58 +00:00
AND monitor_id = ? `, [
-duration,
monitorID
]));
io.to(userID).emit("avgPing", monitorID, avgPing);
}
2021-07-01 05:11:16 +00:00
/**
2021-07-09 06:14:03 +00:00
* Uptime with calculation
* Calculation based on:
* https://www.uptrends.com/support/kb/reporting/calculation-of-uptime-and-downtime
2021-07-01 05:11:16 +00:00
* @param duration : int Hours
*/
static async sendUptime(duration, io, monitorID, userID) {
2021-07-01 09:00:23 +00:00
let sec = duration * 3600;
2021-07-11 12:07:03 +00:00
let heartbeatList = await R.getAll(`
2021-07-09 06:14:03 +00:00
SELECT duration, time, status
2021-07-01 05:11:16 +00:00
FROM heartbeat
2021-07-10 04:04:40 +00:00
WHERE time > DATETIME('now', ? || ' hours')
2021-07-01 05:11:16 +00:00
AND monitor_id = ? `, [
-duration,
monitorID
2021-07-01 09:00:23 +00:00
]);
let downtime = 0;
2021-07-09 06:14:03 +00:00
let total = 0;
let uptime;
2021-07-01 09:00:23 +00:00
2021-07-11 12:07:03 +00:00
// Special handle for the first heartbeat only
if (heartbeatList.length === 1) {
2021-07-01 13:47:14 +00:00
2021-07-11 12:07:03 +00:00
if (heartbeatList[0].status === 1) {
uptime = 1;
} else {
uptime = 0;
}
} else {
for (let row of heartbeatList) {
let value = parseInt(row.duration)
let time = row.time
2021-07-01 09:00:23 +00:00
2021-07-11 12:07:03 +00:00
// Handle if heartbeat duration longer than the target duration
// e.g. Heartbeat duration = 28hrs, but target duration = 24hrs
if (value > sec) {
let trim = dayjs.utc().diff(dayjs(time), 'second');
value = sec - trim;
if (value < 0) {
value = 0;
}
}
total += value;
if (row.status === 0 || row.status === 2) {
2021-07-11 12:07:03 +00:00
downtime += value;
2021-07-01 09:00:23 +00:00
}
}
2021-07-01 05:11:16 +00:00
2021-07-11 12:07:03 +00:00
uptime = (total - downtime) / total;
if (uptime < 0) {
uptime = 0;
2021-07-06 05:44:33 +00:00
}
2021-07-01 09:00:23 +00:00
}
2021-07-09 06:14:03 +00:00
2021-07-01 05:11:16 +00:00
io.to(userID).emit("uptime", monitorID, duration, uptime);
2021-06-30 13:04:58 +00:00
}
2021-06-25 13:55:49 +00:00
}
module.exports = Monitor;