Create detect-resolution.js

This commit is contained in:
Aleksandr Statciuk 2021-08-01 06:52:03 +03:00
parent 33f00154cd
commit e96f1406ed

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@ -0,0 +1,130 @@
const { program } = require('commander')
const parser = require('./parser')
const utils = require('./utils')
const axios = require('axios')
const ProgressBar = require('progress')
const https = require('https')
program
.usage('[OPTIONS]...')
.option('-d, --debug', 'Debug mode')
.option('-c, --country <country>', 'Comma-separated list of country codes', '')
.option('-e, --exclude <exclude>', 'Comma-separated list of country codes to be excluded', '')
.option('--delay <delay>', 'Delay between parser requests', 1000)
.option('--timeout <timeout>', 'Set timeout for each request', 5000)
.parse(process.argv)
const config = program.opts()
const instance = axios.create({
timeout: config.timeout,
maxContentLength: 200000,
httpsAgent: new https.Agent({
rejectUnauthorized: false
})
})
async function main() {
utils.log('Starting...\n')
console.time('Done in')
const playlists = parseIndex()
for (const playlist of playlists) {
await loadPlaylist(playlist.url).then(detectResolution).then(savePlaylist)
}
finish()
}
function parseIndex() {
utils.log(`Parsing 'index.m3u'...\n`)
let playlists = parser.parseIndex()
playlists = utils
.filterPlaylists(playlists, config.country, config.exclude)
.filter(i => i.url !== 'channels/unsorted.m3u')
return playlists
}
async function loadPlaylist(url) {
return parser.parsePlaylist(url)
}
async function detectResolution(playlist) {
const bar = new ProgressBar(`Processing '${playlist.url}': [:bar] :current/:total (:percent) `, {
total: playlist.channels.length
})
const results = []
for (const channel of playlist.channels) {
bar.tick()
if (!channel.resolution.height) {
const CancelToken = axios.CancelToken
const source = CancelToken.source()
const timeout = setTimeout(() => {
source.cancel()
}, config.timeout)
const response = await instance
.get(channel.url, { cancelToken: source.token })
.then(res => {
clearTimeout(timeout)
return res
})
.then(utils.sleep(config.delay))
.catch(err => {
clearTimeout(timeout)
})
if (response && response.status === 200) {
if (/^#EXTM3U/.test(response.data)) {
const resolution = parseResolution(response.data)
if (resolution) {
channel.resolution = resolution
}
}
}
}
results.push(channel)
}
playlist.channels = results
return playlist
}
function parseResolution(string) {
const regex = /RESOLUTION=(\d+)x(\d+)/gm
const match = string.matchAll(regex)
const arr = Array.from(match).map(m => ({
width: parseInt(m[1]),
height: parseInt(m[2])
}))
return arr.length
? arr.reduce(function (prev, current) {
return prev.height > current.height ? prev : current
})
: undefined
}
async function savePlaylist(playlist) {
const original = utils.readFile(playlist.url)
const output = playlist.toString()
if (original === output) {
return false
} else {
utils.createFile(playlist.url, output)
utils.log(`Playlist '${playlist.url}' has been updated\n`)
}
return true
}
function finish() {
console.timeEnd('Done in')
}
main()