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This commit is contained in:
Josh Harvey 2016-11-27 18:12:49 +02:00
parent 3a99b7a6bc
commit 00d986376e
8 changed files with 149 additions and 155 deletions
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96
lib/notifier.js
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@ -1,23 +1,20 @@
var crypto = require('crypto')
var R = require('ramda')
var prettyMs = require('pretty-ms')
var numeral = require('numeral')
var db = null
var getBalances = null
const crypto = require('crypto')
const R = require('ramda')
const prettyMs = require('pretty-ms')
const numeral = require('numeral')
var LOW_BALANCE_THRESHOLD = null
var STALE_STATE = 2 * 60 * 1000
var NETWORK_DOWN_TIME = 60 * 1000
const configManager = require('./config-manager')
const settingsLoader = require('./settingsLoader')
const db = require('./postgresql_interface')
function init (_db, _getBalances, config) {
db = _db
const STALE_STATE = 2 * 60 * 1000
const NETWORK_DOWN_TIME = 60 * 1000
let getBalances
function init (_getBalances) {
getBalances = _getBalances
if (config && config.lowBalanceThreshold) {
LOW_BALANCE_THRESHOLD = config.lowBalanceThreshold
}
}
exports.init = init
function toInt10 (str) { return parseInt(str, 10) }
@ -30,7 +27,10 @@ function sameState (a, b) {
}
function checkBalance (rec) {
return LOW_BALANCE_THRESHOLD && rec.fiatBalance < LOW_BALANCE_THRESHOLD
const settings = settingsLoader.settings
const config = configManager.unscoped(settings.config)
const lowBalanceThreshold = config.notifications.lowBalanceThreshold
return lowBalanceThreshold && rec.fiatBalance < lowBalanceThreshold
? {code: 'lowBalance', cryptoCode: rec.cryptoCode, fiatBalance: rec.fiatBalance, fiatCode: rec.fiatCode}
: null
}
@ -41,14 +41,14 @@ function checkBalances () {
}
function checkPing (deviceEvents) {
var sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
var lastEvent = R.last(sortedEvents)
const sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
const lastEvent = R.last(sortedEvents)
if (!lastEvent) {
return [{code: 'ping'}]
}
var age = Math.floor(lastEvent.age)
const age = Math.floor(lastEvent.age)
if (age > NETWORK_DOWN_TIME) {
return [{code: 'ping', age: age}]
}
@ -57,22 +57,22 @@ function checkPing (deviceEvents) {
}
function checkStuckScreen (deviceEvents) {
var sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
var noRepeatEvents = R.dropRepeatsWith(sameState, sortedEvents)
var lastEvent = R.last(noRepeatEvents)
const sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
const noRepeatEvents = R.dropRepeatsWith(sameState, sortedEvents)
const lastEvent = R.last(noRepeatEvents)
if (!lastEvent) {
return []
}
var state = lastEvent.note.state
var isIdle = lastEvent.note.isIdle
const state = lastEvent.note.state
const isIdle = lastEvent.note.isIdle
if (isIdle) {
return []
}
var age = Math.floor(lastEvent.age)
const age = Math.floor(lastEvent.age)
if (age > STALE_STATE) {
return [{code: 'stale', state: state, age: age}]
}
@ -86,24 +86,22 @@ function devicesAndEvents () {
}
function checkStatus () {
var alerts = {devices: {}, deviceNames: {}}
const alerts = {devices: {}, deviceNames: {}}
return Promise.all([checkBalances(), devicesAndEvents()])
.then(([balances, rec]) => {
var devices = rec.devices
var events = rec.events
const devices = rec.devices
const events = rec.events
alerts.general = balances
devices.forEach(function (deviceRow) {
var deviceId = deviceRow.device_id
var deviceName = deviceRow.name || deviceId
var deviceEvents = events.filter(function (eventRow) {
const deviceId = deviceRow.device_id
const deviceName = deviceRow.name || deviceId
const deviceEvents = events.filter(function (eventRow) {
return eventRow.device_id === deviceId
})
var deviceAlerts = []
deviceAlerts = R.concat(deviceAlerts, checkStuckScreen(deviceEvents))
deviceAlerts = R.concat(deviceAlerts, checkPing(deviceEvents))
const deviceAlerts = checkStuckScreen(deviceEvents).concat(checkPing(deviceEvents))
alerts.devices[deviceId] = deviceAlerts
alerts.deviceNames[deviceId] = deviceName
@ -112,7 +110,6 @@ function checkStatus () {
return alerts
})
}
exports.checkStatus = checkStatus
function formatCurrency (num, code) {
return numeral(num).format('0,0.00') + ' ' + code
@ -122,15 +119,15 @@ function emailAlert (alert) {
switch (alert.code) {
case 'ping':
if (alert.age) {
var pingAge = prettyMs(alert.age, {compact: true, verbose: true})
const pingAge = prettyMs(alert.age, {compact: true, verbose: true})
return 'Connection to machine down for ' + pingAge
}
return 'Machine down for a while or never connected'
case 'stale':
var stuckAge = prettyMs(alert.age, {compact: true, verbose: true})
const stuckAge = prettyMs(alert.age, {compact: true, verbose: true})
return 'Machine is stuck on ' + alert.state + 'screen for ' + stuckAge
case 'lowBalance':
var balance = formatCurrency(alert.fiatBalance, alert.fiatCode)
const balance = formatCurrency(alert.fiatBalance, alert.fiatCode)
return 'Low balance of ' + balance + ' in ' + alert.cryptoCode + ' wallet'
}
}
@ -140,7 +137,7 @@ function emailAlerts (alerts) {
}
function printEmailAlerts (alertRec) {
var body = 'Errors were reported by your Lamassu Machines.\n'
let body = 'Errors were reported by your Lamassu Machines.\n'
if (alertRec.general.length !== 0) {
body = body + '\nGeneral errors:\n'
@ -148,29 +145,34 @@ function printEmailAlerts (alertRec) {
}
R.keys(alertRec.devices).forEach(function (device) {
var deviceName = alertRec.deviceNames[device]
const deviceName = alertRec.deviceNames[device]
body = body + '\nErrors for ' + deviceName + ':\n'
body = body + emailAlerts(alertRec.devices[device])
})
return body
}
exports.printEmailAlerts = printEmailAlerts
function alertSubject (alertRec) {
var alerts = alertRec.general
let alerts = alertRec.general
R.keys(alertRec.devices).forEach(function (device) {
alerts = R.concat(alerts, alertRec.devices[device])
})
if (alerts.length === 0) return null
var alertTypes = R.uniq(R.pluck('code', alerts)).sort()
const alertTypes = R.uniq(R.pluck('code', alerts)).sort()
return '[Lamassu] Errors reported: ' + alertTypes.join(', ')
}
exports.alertSubject = alertSubject
function alertFingerprint (alertRec) {
var subject = alertSubject(alertRec)
const subject = alertSubject(alertRec)
if (!subject) return null
return crypto.createHash('sha256').update(subject).digest('hex')
}
exports.alertFingerprint = alertFingerprint
module.exports = {
init,
checkStatus,
printEmailAlerts,
alertFingerprint,
alertSubject
}