lamassu-server/packages/server/lib/poller.js
2025-06-03 13:33:09 +01:00

321 lines
8.7 KiB
JavaScript

const fs = require('fs/promises')
const path = require('path')
const _ = require('lodash/fp')
const Queue = require('queue-promise')
const plugins = require('./plugins')
const notifier = require('./notifier')
const T = require('./time')
const logger = require('./logger')
const cashOutTx = require('./cash-out/cash-out-tx')
const cashInTx = require('./cash-in/cash-in-tx')
const sanctionsUpdater = require('./ofac/update')
const sanctions = require('./ofac/index')
const coinAtmRadar = require('./coinatmradar/coinatmradar')
const configManager = require('./new-config-manager')
const complianceTriggers = require('./compliance-triggers')
const settingsLoader = require('./new-settings-loader')
const machineLoader = require('./machine-loader')
const NodeCache = require('node-cache')
const db = require('./db')
const processBatches = require('./tx-batching-processing')
const INCOMING_TX_INTERVAL = 30 * T.seconds
const LIVE_INCOMING_TX_INTERVAL = 5 * T.seconds
const UNNOTIFIED_INTERVAL = 10 * T.seconds
const SWEEP_HD_INTERVAL = 5 * T.minute
const TRADE_INTERVAL = 60 * T.seconds
const LOGS_CLEAR_INTERVAL = 1 * T.day
const SANCTIONS_INITIAL_DOWNLOAD_INTERVAL = 5 * T.minutes
const SANCTIONS_UPDATE_INTERVAL = 1 * T.day
const RADAR_UPDATE_INTERVAL = 5 * T.minutes
const PRUNE_MACHINES_HEARTBEAT = 1 * T.day
const TRANSACTION_BATCH_LIFECYCLE = 20 * T.minutes
const TICKER_RATES_INTERVAL = 59 * T.seconds
const FAILED_SCANS_INTERVAL = 1 * T.day
const PENDING_PINGS_INTERVAL = 90 * T.seconds // lib/notifier/codes.js
const CHECK_NOTIFICATION_INTERVAL = 20 * T.seconds
const PENDING_INTERVAL = 10 * T.seconds
const CACHE_ENTRY_TTL = 3600 // seconds
const FAST_QUEUE_WAIT = 1 * T.seconds
const SLOW_QUEUE_WAIT = 10 * T.seconds
const OPERATOR_DATA_DIR = process.env.OPERATOR_DATA_DIR
const FAST_QUEUE = new Queue({
concurrent: 600,
interval: FAST_QUEUE_WAIT,
})
const SLOW_QUEUE = new Queue({
concurrent: 10,
interval: SLOW_QUEUE_WAIT,
})
const QUEUE = {
FAST: FAST_QUEUE,
SLOW: SLOW_QUEUE,
}
const cachedVariables = new NodeCache({
stdTTL: CACHE_ENTRY_TTL,
checkperiod: CACHE_ENTRY_TTL,
deleteOnExpire: false,
useClones: false, // pass values by reference instead of cloning
})
cachedVariables.on('expired', (key, val) => {
if (!val.isReloading) {
// since val is passed by reference we don't need to do cachedVariables.set()
val.isReloading = true
return reload()
}
})
db.connect({ direct: true })
.then(sco => {
sco.client.on('notification', () => {
return reload()
})
return sco.none('LISTEN $1:name', 'reload')
})
.catch(console.error)
function reload() {
return settingsLoader.loadLatest().then(settings => {
const pi = plugins(settings)
cachedVariables.set('public', { settings, pi, isReloading: false })
logger.debug(`Settings for schema 'public' reloaded in poller`)
return updateAndLoadSanctions()
})
}
function pi() {
return cachedVariables.get('public').pi
}
function settings() {
return cachedVariables.get('public').settings
}
function initialSanctionsDownload() {
const structs = sanctions.getStructs()
const isEmptyStructs =
_.isNil(structs) || _.flow(_.values, _.all(_.isEmpty))(structs)
if (!isEmptyStructs) return Promise.resolve()
return updateAndLoadSanctions()
}
function updateAndLoadSanctions() {
const triggers = configManager.getTriggers(settings().config)
const hasSanctions = complianceTriggers.hasSanctions(triggers)
if (!hasSanctions) return Promise.resolve()
logger.info('Updating sanctions database...')
return sanctionsUpdater
.update()
.then(sanctions.load)
.then(() => logger.info('Sanctions database updated.'))
}
function updateCoinAtmRadar() {
return pi()
.getRawRates()
.then(rates => coinAtmRadar.update(rates, settings()))
}
const readdir = dirpath =>
fs
.readdir(dirpath, { withFileTypes: true })
.then(_.map(entry => _.set('path', path.join(dirpath, entry.name), entry)))
const readdirRec = rootPath =>
readdir(rootPath)
.then(entries =>
Promise.all(
entries.map(entry =>
entry.isDirectory() ? readdirRec(entry.path) : [entry],
),
),
)
.then(_.flatten)
const stat = path => fs.stat(path).then(_.set('path', path))
const pathComponents = p => path.normalize(p).split(path.sep)
// @see lib/customers.js:updateIdCardData()
const cleanOldFailedPDF417Scans = () => {
const matcher = (c, pat) => (typeof pat === 'function' ? pat(c) : c === pat)
const PDF417ScanPathPattern = _.concat(pathComponents(OPERATOR_DATA_DIR), [
'id-operator',
() => /* customerid*/ true,
'idcarddata',
fname => path.extname(fname) === 'jpg',
])
const isPDF417Scan = entry => {
entry = pathComponents(entry.path)
return (
entry.length === PDF417ScanPathPattern.length &&
_.isMatchWith(matcher, PDF417ScanPathPattern, pathComponents(entry.path))
)
}
let old = new Date()
old.setDate(old.getDate() - 2) // 2 days ago
old = old.getTime()
/* NOTE: Small caveat to mtime: last time the file was written to. */
const isOld = filestat => filestat.mtimeMs < old
return readdirRec(path.join(OPERATOR_DATA_DIR, 'id-operator'))
.then(entries =>
Promise.all(
entries
.filter(entry => entry.isFile() && isPDF417Scan(entry))
.map(entry => stat(entry.path)),
),
)
.then(filestats =>
Promise.all(
filestats.filter(isOld).map(_.flow(_.get(['path']), fs.unlink)),
),
)
.catch(err => {
console.log('Error cleaning up failed PDF417 scans:', err)
})
}
// @see lib/machine-loader.js:updateFailedQRScans()
const cleanOldFailedQRScans = () => {
const old = new Date()
old.setDate(old.getDate() - 2) // 2 days ago
const isOld = filepath => {
const then = new Date(path.basename(filepath).replace(/-[0-9]+\.jpg$/, ''))
return then < old
}
return readdirRec(path.join(OPERATOR_DATA_DIR, 'failedQRScans'))
.then(entries =>
Promise.all(
entries
.filter(entry => entry.isFile() && isOld(entry.path))
.map(entry => fs.unlink(entry.path)),
),
)
.catch(err => {
console.log('Error cleaning up failed QR scans:', err)
})
}
function setup() {
return settingsLoader
.loadLatest()
.then(settings => {
const pi = plugins(settings)
cachedVariables.set('public', { settings, pi, isReloading: false })
return doPolling()
})
.catch(console.error)
}
function recursiveTimeout(func, timeout, ...vars) {
setTimeout(() => {
let promise = null
const loadVariables = vars.length > 0 && typeof vars[0] === 'function'
if (loadVariables) {
const funcVars = [...vars]
funcVars[0] = vars[0]()
promise = func(...funcVars)
} else {
promise = func(...vars)
}
promise.finally(() => {
recursiveTimeout(func, timeout, ...vars)
})
}, timeout)
}
function addToQueue(func, interval, queue, ...vars) {
recursiveTimeout(func, interval, ...vars)
}
function doPolling() {
pi().executeTrades()
pi().clearOldLogs()
cashOutTx.monitorLiveIncoming(settings())
cashOutTx.monitorStaleIncoming(settings())
cashOutTx.monitorUnnotified(settings())
pi().sweepHd()
notifier.checkNotification(pi())
updateCoinAtmRadar()
addToQueue(pi().getRawRates, TICKER_RATES_INTERVAL, QUEUE.FAST)
addToQueue(pi().executeTrades, TRADE_INTERVAL, QUEUE.FAST)
addToQueue(
cashOutTx.monitorLiveIncoming,
LIVE_INCOMING_TX_INTERVAL,
QUEUE.FAST,
settings,
)
addToQueue(
cashOutTx.monitorStaleIncoming,
INCOMING_TX_INTERVAL,
QUEUE.FAST,
settings,
)
addToQueue(
cashOutTx.monitorUnnotified,
UNNOTIFIED_INTERVAL,
QUEUE.FAST,
settings,
)
addToQueue(cashInTx.monitorPending, PENDING_INTERVAL, QUEUE.FAST, settings)
addToQueue(
processBatches,
UNNOTIFIED_INTERVAL,
QUEUE.FAST,
settings,
TRANSACTION_BATCH_LIFECYCLE,
)
addToQueue(pi().sweepHd, SWEEP_HD_INTERVAL, QUEUE.FAST, settings)
addToQueue(pi().clearOldLogs, LOGS_CLEAR_INTERVAL, QUEUE.SLOW)
addToQueue(
notifier.checkNotification,
CHECK_NOTIFICATION_INTERVAL,
QUEUE.FAST,
pi,
)
addToQueue(
initialSanctionsDownload,
SANCTIONS_INITIAL_DOWNLOAD_INTERVAL,
QUEUE.SLOW,
)
addToQueue(updateAndLoadSanctions, SANCTIONS_UPDATE_INTERVAL, QUEUE.SLOW)
addToQueue(updateCoinAtmRadar, RADAR_UPDATE_INTERVAL, QUEUE.SLOW)
addToQueue(
pi().pruneMachinesHeartbeat,
PRUNE_MACHINES_HEARTBEAT,
QUEUE.SLOW,
settings,
)
addToQueue(cleanOldFailedQRScans, FAILED_SCANS_INTERVAL, QUEUE.SLOW, settings)
addToQueue(
cleanOldFailedPDF417Scans,
FAILED_SCANS_INTERVAL,
QUEUE.SLOW,
settings,
)
addToQueue(
machineLoader.batchRecordPendingPings,
PENDING_PINGS_INTERVAL,
QUEUE.SLOW,
)
}
module.exports = { setup, reload }