160 lines
3.7 KiB
JavaScript
160 lines
3.7 KiB
JavaScript
const { db, store, parser, file, logger } = require('../../core')
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const statuses = require('../../data/statuses')
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const _ = require('lodash')
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const items = []
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const LOGS_DIR = process.env.LOGS_DIR || 'scripts/logs/cluster/load'
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async function main() {
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let streams = await loadStreams()
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const results = await loadResults()
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const origins = await findOrigins(results)
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streams = await updateStreams(streams, results, origins)
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await updateDatabase(streams)
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}
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main()
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async function loadStreams() {
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logger.info('loading streams...')
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await db.streams.load()
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const streams = await db.streams.find({})
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logger.info(`found ${streams.length} streams`)
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return streams
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}
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async function loadResults() {
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logger.info('loading results from logs...')
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const results = {}
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const files = await file.list(`${LOGS_DIR}/cluster_*.log`)
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for (const filepath of files) {
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const parsed = await parser.parseLogs(filepath)
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for (const item of parsed) {
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results[item._id] = item
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}
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}
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logger.info(`found ${Object.values(results).length} results`)
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return results
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}
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async function findOrigins(results = {}) {
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logger.info('searching for stream origins...')
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const origins = {}
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for (const { error, requests } of Object.values(results)) {
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if (error || !Array.isArray(requests) || !requests.length) continue
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let origin = requests.shift()
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origin = new URL(origin.url)
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for (const request of requests) {
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const curr = new URL(request.url)
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const key = curr.href.replace(/(^\w+:|^)/, '')
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if (!origins[key] && curr.host === origin.host) {
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origins[key] = origin.href
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}
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}
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}
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logger.info(`found ${_.uniq(Object.values(origins)).length} origins`)
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return origins
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}
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async function updateStreams(items = [], results = {}, origins = {}) {
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logger.info('updating streams...')
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let updated = 0
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const output = []
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for (const item of items) {
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const stream = store.create(item)
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const result = results[item._id]
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if (result) {
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const { error, streams, requests } = result
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const { is_online } = parseError(error)
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stream.set('is_online', { is_online })
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if (streams.length) {
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const { width, height, bitrate } = parseStreams(streams)
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stream.set('width', { width })
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stream.set('height', { height })
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stream.set('bitrate', { bitrate })
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}
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if (requests.length) {
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const origin = findOrigin(requests, origins)
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if (origin) {
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stream.set('url', { url: origin })
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}
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}
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}
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if (stream.changed) updated++
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output.push(stream.data())
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}
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logger.info(`updated ${updated} streams`)
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return output
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}
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async function updateDatabase(streams = []) {
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logger.info('saving to database...')
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for (const stream of streams) {
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await db.streams.update({ _id: stream._id }, stream)
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}
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db.streams.compact()
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logger.info('done')
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}
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function findOrigin(requests = [], origins = {}) {
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if (origins && Array.isArray(requests)) {
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requests = requests.map(r => r.url.replace(/(^\w+:|^)/, ''))
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for (const url of requests) {
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if (origins[url]) {
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return origins[url]
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}
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}
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}
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return null
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}
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function parseStreams(streams) {
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streams = streams.filter(s => s.codec_type === 'video')
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streams = _.orderBy(streams, ['height', 'bitrate'], ['desc', 'desc'])
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const data = _.head(streams)
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if (data) {
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const bitrate = data.tags.variant_bitrate ? parseInt(data.tags.variant_bitrate) : 0
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return { width: data.width, height: data.height, bitrate }
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}
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return {}
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}
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function parseError(error) {
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const output = {
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is_online: true,
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message: error
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}
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if (error && !error.includes('403')) {
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output.is_online = false
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}
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return output
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}
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