const fs = require("fs") const path = require('path') const M3U8FileParser = require('m3u8-file-parser') const axios = require('axios') const zlib = require("zlib") const DOMParser = require('xmldom').DOMParser const urlParser = require('url') const supportedGroups = [ 'Auto','Business', 'CCTV', 'Classic','Comedy','Documentary','Education','Entertainment', 'Family','Fashion','Food', 'General', 'Health', 'History', 'Hobby', 'Kids', 'Legislative','Lifestyle','Local', 'Movies', 'Music', 'News', 'Quiz','Radio', 'Religious','Sci-Fi', 'Shop', 'Sport', 'Travel', 'Weather', 'XXX' ] const blacklist = [ '80.80.160.168', // repeats on a loop '63.237.48.3', // not a live stream '189.216.247.113', // not working streams ] let cache = {} class Playlist { constructor(data) { this.attrs = data.attrs this.items = data.items } getHeader() { let parts = ['#EXTM3U'] for(let key in this.attrs) { let value = this.attrs[key] parts.push(`${key}="${value}"`) } return `${parts.join(' ')}\n` } } class Channel { constructor(data) { this.id = data.id || '' this.name = data.name || '' this.logo = data.logo || '' this.group = this._getGroup(data.group) this.url = data.url this.title = data.title } _getGroup(groupTitle) { if(!groupTitle) return '' const groupIndex = supportedGroups.map(g => g.toLowerCase()).indexOf(groupTitle.toLowerCase()) if(groupIndex === -1) { groupTitle = '' } else { groupTitle = supportedGroups[groupIndex] } return groupTitle } toString() { const info = `-1 tvg-id="${this.id}" tvg-name="${this.name}" tvg-logo="${this.logo}" group-title="${this.group}",${this.title}` return '#EXTINF:' + info + '\n' + this.url + '\n' } } function parsePlaylist(filename) { const parser = new M3U8FileParser() const content = readFile(filename) parser.read(content) let results = parser.getResult() let contentMatches = content.match(/^.+(?=#|\n|\r)/g) let head = contentMatches.length ? contentMatches[0] : null let attrs = {} if(head) { const parts = head.split(' ').filter(p => p !== '#EXTM3U').filter(p => p) for(const attr of parts) { let attrParts = attr.split('=') attrs[attrParts[0]] = attrParts[1].replace(/\"/g, '') } } results.attrs = attrs return new Playlist({ attrs: results.attrs, items: results.segments }) } function createChannel(data) { return new Channel({ id: data.id, name: data.name, logo: data.logo, group: data.group, url: data.url, title: data.title }) } async function loadEPG(url) { const data = await getGzipped(url) const doc = new DOMParser().parseFromString(data, 'text/xml') const channelElements = doc.getElementsByTagName('channel') let channels = {} for(let i = 0; i < channelElements.length; i++) { let channel = {} let channelElement = channelElements[i] channel.id = channelElement.getAttribute('id') channel.names = [] for(let nameElement of Object.values(channelElement.getElementsByTagName('display-name'))) { if(nameElement.firstChild) { channel.names.push(nameElement.firstChild.nodeValue) } } channel.names = channel.names.filter(n => n) const iconElements = channelElement.getElementsByTagName('icon') if(iconElements.length) { channel.icon = iconElements[0].getAttribute('src') } channels[channel.id] = channel } return Promise.resolve({ url, channels }) } function getGzipped(url) { const supportedTypes = ['application/x-gzip', 'application/octet-stream'] return new Promise((resolve, reject) => { var buffer = [] axios({ method: 'get', url: url, responseType:'stream' }).then(res => { let stream if(supportedTypes.indexOf(res.headers['content-type']) > -1) { let gunzip = zlib.createGunzip() res.data.pipe(gunzip) stream = gunzip } else { stream = res.data } stream.on('data', function(data) { buffer.push(data.toString()) }).on("end", function() { resolve(buffer.join("")) }).on("error", function(e) { reject(e) }) }).catch(e => { reject(e) }) }) } function byTitle(a, b) { var nameA = a.title.toLowerCase() var nameB = b.title.toLowerCase() if (nameA < nameB) { return -1 } if (nameA > nameB) { return 1 } return 0 } function sortByTitle(arr) { return arr.sort(byTitle) } function readFile(filename) { return fs.readFileSync(path.resolve(__dirname) + `/../${filename}`, { encoding: "utf8" }) } function appendToFile(filename, data) { fs.appendFileSync(path.resolve(__dirname) + '/../' + filename, data) } function createFile(filename, data) { fs.writeFileSync(path.resolve(__dirname) + '/../' + filename, data) } function getBasename(filename) { return path.basename(filename, path.extname(filename)) } function addToCache(url) { let id = getUrlPath(url) cache[id] = true } function checkCache(url) { let id = getUrlPath(url) return cache.hasOwnProperty(id) } function clearCache() { cache = {} } function getUrlPath(u) { let parsed = urlParser.parse(u) let searchQuery = parsed.search || '' return parsed.host + parsed.pathname + searchQuery } function validateUrl(channelUrl) { const url = new URL(channelUrl) const host = url.hostname return blacklist.indexOf(host) === -1 } function skipPlaylist(filename) { let test_country = process.env.npm_config_country if (test_country && filename !== 'channels/' + test_country + '.m3u') { return true; } return false; } module.exports = { parsePlaylist, sortByTitle, appendToFile, createFile, readFile, loadEPG, createChannel, getBasename, addToCache, checkCache, clearCache, validateUrl, skipPlaylist }