iptv/scripts/helper.js

271 lines
6.7 KiB
JavaScript

const fs = require("fs")
const path = require('path')
const playlistParser = require('iptv-playlist-parser')
const axios = require('axios')
const zlib = require("zlib")
const epgParser = require('epg-parser')
const urlParser = require('url')
const ISO6391 = require('iso-639-1')
const escapeStringRegexp = require('escape-string-regexp')
const markdownInclude = require('markdown-include')
let cache = {}
let helper = {}
helper.sortBy = function(arr, fields) {
return arr.sort((a, b) => {
for(let field of fields) {
if(a[field].toLowerCase() < b[field].toLowerCase()) { return -1 }
if(a[field].toLowerCase() > b[field].toLowerCase()) { return 1 }
}
return 0
})
}
helper.createDir = function(dir) {
if (!fs.existsSync(dir)) {
fs.mkdirSync(dir)
}
}
helper.compileMarkdown = function(filepath) {
return markdownInclude.compileFiles(path.resolve(__dirname, filepath))
}
helper.escapeStringRegexp = function(scring) {
return escapeStringRegexp(string)
}
helper.getISO6391Name = function(code) {
return ISO6391.getName(code)
}
helper.getISO6391Code = function(name) {
return ISO6391.getCode(name)
}
helper.parsePlaylist = function(filename) {
const content = this.readFile(filename)
const result = playlistParser.parse(content)
return new Playlist(result)
}
helper.parseEPG = async function(url) {
const content = await this.getEPG(url)
const result = epgParser.parse(content)
const channels = {}
for(let channel of result.channels) {
channels[channel.id] = channel
}
return Promise.resolve({
url,
channels
})
}
helper.getEPG = function(url) {
return new Promise((resolve, reject) => {
var buffer = []
axios({
method: 'get',
url: url,
responseType: 'stream',
timeout: 60000
}).then(res => {
let stream
if(/\.gz$/i.test(url)) {
let gunzip = zlib.createGunzip()
res.data.pipe(gunzip)
stream = gunzip
} else {
stream = res.data
}
stream.on('data', function(data) {
buffer.push(data.toString())
}).on("end", function() {
resolve(buffer.join(""))
}).on("error", function(e) {
reject(e)
})
}).catch(e => {
reject(e)
})
})
}
helper.readFile = function(filename) {
return fs.readFileSync(path.resolve(__dirname) + `/../${filename}`, { encoding: "utf8" })
}
helper.appendToFile = function(filename, data) {
fs.appendFileSync(path.resolve(__dirname) + '/../' + filename, data)
}
helper.createFile = function(filename, data = '') {
fs.writeFileSync(path.resolve(__dirname) + '/../' + filename, data)
}
helper.getBasename = function(filename) {
return path.basename(filename, path.extname(filename))
}
helper.getUrlPath = function(u) {
let parsed = urlParser.parse(u)
let searchQuery = parsed.search || ''
let path = parsed.host + parsed.pathname + searchQuery
return path.toLowerCase()
}
helper.filterPlaylists = function(arr, include = '', exclude = '') {
if(include) {
const included = include.split(',').map(filename => `channels/${filename}.m3u`)
return arr.filter(i => included.indexOf(i.url) > -1)
}
if(exclude) {
const excluded = exclude.split(',').map(filename => `channels/${filename}.m3u`)
return arr.filter(i => excluded.indexOf(i.url) === -1)
}
return arr
}
helper.generateTable = function(data, options) {
let output = '<table>\n'
output += '\t<thead>\n\t\t<tr>'
for (let column of options.columns) {
output += `<th align="${column.align}">${column.name}</th>`
}
output += '</tr>\n\t</thead>\n'
output += '\t<tbody>\n'
for (let item of data) {
output += '\t\t<tr>'
let i = 0
for (let prop in item) {
const column = options.columns[i]
let nowrap = column.nowrap
let align = column.align
output += `<td align="${align}"${nowrap ? ' nowrap' : ''}>${item[prop]}</td>`
i++
}
output += '</tr>\n'
}
output += '\t</tbody>\n'
output += '</table>'
return output
}
helper.createChannel = function(data) {
return new Channel({
id: data.tvg.id,
name: data.tvg.name,
language: data.tvg.language,
logo: data.tvg.logo,
group: data.group.title,
url: data.url,
title: data.name
})
}
helper.writeToLog = function(country, msg, url) {
var now = new Date()
var line = `${country}: ${msg} '${url}'`
this.appendToFile('error.log', now.toISOString() + ' ' + line + '\n')
}
helper.parseMessage = function(err, u) {
if(!err || !err.message) return
const msgArr = err.message.split('\n')
if(msgArr.length === 0) return
const line = msgArr.find(line => {
return line.indexOf(u) === 0
})
if(!line) return
return line.replace(`${u}: `, '')
}
class Playlist {
constructor(data) {
this.header = data.header
this.items = data.items
this.changed = false
}
getHeader() {
let parts = ['#EXTM3U']
for(let key in this.header.attrs) {
let value = this.header.attrs[key]
if(value) {
parts.push(`${key}="${value}"`)
}
}
return `${parts.join(' ')}\n`
}
}
class Channel {
constructor(data) {
this.id = data.id
this.name = data.name
this.language = this._filterLanguage(data.language)
this.logo = data.logo
this.group = this._filterGroup(data.group)
this.url = data.url
this.title = data.title
}
_filterGroup(groupTitle) {
if(!groupTitle) return ''
const supportedCategories = [ 'Auto','Business', 'Classic','Comedy','Documentary','Education','Entertainment', 'Family','Fashion','Food', 'General', 'Health', 'History', 'Hobby', 'Kids', 'Legislative','Lifestyle','Local', 'Movies', 'Music', 'News', 'Quiz', 'Religious','Sci-Fi', 'Shop', 'Sport', 'Travel', 'Weather', 'XXX' ]
const groupIndex = supportedCategories.map(g => g.toLowerCase()).indexOf(groupTitle.toLowerCase())
if(groupIndex === -1) {
groupTitle = ''
} else {
groupTitle = supportedCategories[groupIndex]
}
return groupTitle
}
_filterLanguage(languageName) {
if(ISO6391.getCode(languageName) !== '') {
return languageName
}
return ''
}
toString() {
const country = this.countryCode.toUpperCase()
const epg = (this.id && this.epg) ? this.epg : ''
const info = `-1 tvg-id="${this.id}" tvg-name="${this.name}" tvg-language="${this.language}" tvg-logo="${this.logo}" tvg-country="${country}" tvg-url="${epg}" group-title="${this.group}",${this.title}`
return '#EXTINF:' + info + '\n' + this.url + '\n'
}
toShortString() {
const info = `-1 tvg-id="${this.id}" tvg-name="${this.name}" tvg-language="${this.language}" tvg-logo="${this.logo}" group-title="${this.group}",${this.title}`
return '#EXTINF:' + info + '\n' + this.url + '\n'
}
}
module.exports = helper