74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
const fs = require('fs')
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const pify = require('pify')
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const readFile = pify(fs.readFile)
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const db = require('./db')
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const logger = require('./logger')
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const uuid = require('uuid')
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const CA_PATH = process.env.CA_PATH
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// A machine on an older version (no multicassette code) could be paired with a server with multicassette code.
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// This makes sure that the server stores a default value
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const DEFAULT_NUMBER_OF_CASSETTES = 2
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const DEFAULT_NUMBER_OF_RECYCLERS = 0
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function pullToken (token) {
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const sql = `delete from pairing_tokens
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where token=$1
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returning name, created < now() - interval '1 hour' as expired`
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return db.one(sql, [token])
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}
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// TODO new-admin: We should remove all configs related to that device. This can get tricky.
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function unpair (deviceId) {
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return db.tx(t =>
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t.none(`INSERT INTO unpaired_devices(id, device_id, name, model, paired, unpaired)
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SELECT $1, $2, d.name, d.model, d.created, now()
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FROM devices d
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WHERE device_id=$2`
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, [uuid.v4(), deviceId])
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.then(() => {
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const q1 = t.none(`DELETE FROM devices WHERE device_id=$1`, [deviceId])
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const q2 = t.none(`DELETE FROM machine_pings WHERE device_id=$1`, [deviceId])
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const q3 = t.none(`DELETE FROM machine_network_heartbeat WHERE device_id=$1`, [deviceId])
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const q4 = t.none(`DELETE FROM machine_network_performance WHERE device_id=$1`, [deviceId])
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return t.batch([q1, q2, q3, q4])
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})
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)
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}
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function pair (token, deviceId, machineModel, numOfCassettes = DEFAULT_NUMBER_OF_CASSETTES, numOfRecyclers = DEFAULT_NUMBER_OF_RECYCLERS) {
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return pullToken(token)
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.then(r => {
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if (r.expired) return false
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const insertSql = `insert into devices (device_id, name, number_of_cassettes, number_of_recyclers) values ($1, $2, $3, $4)
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on conflict (device_id)
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do update set paired=TRUE, display=TRUE`
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return db.none(insertSql, [deviceId, r.name, numOfCassettes, numOfRecyclers])
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.then(() => true)
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})
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.catch(err => {
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logger.debug(err)
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return false
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})
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}
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function authorizeCaDownload (caToken) {
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return pullToken(caToken)
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.then(r => {
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if (r.expired) throw new Error('Expired')
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return readFile(CA_PATH, {encoding: 'utf8'})
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})
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}
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function isPaired (deviceId) {
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const sql = 'select device_id, name from devices where device_id=$1 and paired=TRUE'
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return db.oneOrNone(sql, [deviceId])
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.then(row => row && row.device_id === deviceId ? row.name : false)
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}
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module.exports = {pair, unpair, authorizeCaDownload, isPaired}
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