forked from boyska/radiomanifest.js
make it ESM ready
This commit is contained in:
parent
baa181354f
commit
207f06a791
1 changed files with 288 additions and 292 deletions
580
radiomanifest.js
580
radiomanifest.js
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@ -1,170 +1,174 @@
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const fetch = require('isomorphic-unfetch')
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const shows = require('./shows.js')
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const calendar = require('./calendar.js')
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import fetch from 'isomorphic-unfetch'
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import shows from './shows.js'
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import calendar from './calendar.js'
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function getStreaminfoUrl (siteurl) {
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return siteurl + '/streaminfo.json' // XXX: improve this logic
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function getStreaminfoUrl(siteurl) {
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return siteurl + "/streaminfo.json" // XXX: improve this logic
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}
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function getManifestUrl (siteurl) {
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return siteurl + '/radiomanifest.xml' // XXX: improve this logic
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function getManifestUrl(siteurl) {
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return siteurl + "/radiomanifest.xml" // XXX: improve this logic
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}
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function getAttribute(el, attr, default_value) {
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if(el.hasAttribute(attr))
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return el.getAttribute(attr);
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return default_value;
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if (el.hasAttribute(attr)) return el.getAttribute(attr)
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return default_value
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}
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/**
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* Represents everything we know about a radio. This includes, but is not limited to, radiomanifest.xml.
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*/
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class Radio {
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/**
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* @param {Array} [sources] optional
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* @param {string} [scheduleURL]
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* @param {string} [showsURL]
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* @param {string} [feed]
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*/
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constructor (sources, scheduleURL, showsURL, feed) {
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this.streaming = new RadioStreaming(sources)
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this.scheduleURL = scheduleURL
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this.showsURL = showsURL
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this.feed = feed
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this.name = ''
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this.description = ''
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this.logo = null
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this.shows = []
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this.schedule = null
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}
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/**
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* @returns {RadioStreaming}
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*/
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getStreaming () {
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return this.streaming
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}
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setName (name) {
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this.name = name
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}
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/**
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* The radio name, as inferred by stream-meta
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*
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* @returns {string}
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*/
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getName() {
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return this.name
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}
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setDescription(desc) {
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this.description = desc
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}
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/**
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* The description of the radio, as inferred by stream-meta
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*
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* @returns {string}
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*/
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getDescription() {
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return this.description
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}
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setLogo(logo) {
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this.logo = logo
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}
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/**
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* @returns {string} the URL of the logo, or `null` if not found
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*/
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getLogo() {
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return this.logo
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}
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/**
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*
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* @returns {Array<RadioShow>}
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*/
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getShows() {
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return this.shows
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}
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/**
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* @returns {RadioShow} The lookup is exact and case-sensitive. If no such show can be found, `null`
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* is returned.
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*/
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getShowByName (showName) {
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if (this.shows === undefined) return null
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return this.shows.find(s => s.name === showName)
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}
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/**
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* @returns {RadioSchedule} If no schedule is present, `null` is returned.
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*/
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getSchedule () {
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return this.schedule
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}
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/**
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* Find if a show is running at the given moment. If there's none, `null` is returned.
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* If possible, a complete {@link RadioShow} including full informations (from shows.xml) is returned.
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* If, instead, we know from the `schedule` that there must be a show, but have no additional detail, a
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* {@link RadioShow} object will be created on the fly.
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*
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* @param {ICAL.Time} [now] If omitted, the current time is used.
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* @returns {RadioShow} If we don't know what's going on at the given moment, `null` is returned.
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*/
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getShowAtTime (now) {
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if (this.schedule === undefined || this.schedule === null) return null
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return this.getSchedule().getNowShow(now)
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}
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/**
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* This static method can create a Radio object from a valid radiomanifest.xml file
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*
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* @param xml An already parsed xml block
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* @returns {Radio}
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*/
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static fromDOM (xml) {
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const doc = xml.cloneNode(true)
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let res = doc.evaluate('/radio-manifest/streaming/source', doc, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)
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const sources = []
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for (let i = 0; i < res.snapshotLength; i++) {
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const src = res.snapshotItem(i)
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if (!src.hasAttribute('priority')) {
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src.setAttribute('priority', '0')
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} else if (parseInt(src.getAttribute('priority'), 10) < 0) {
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continue
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}
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sources.push(src)
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/**
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* @param {Array} [sources] optional
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* @param {string} [scheduleURL]
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* @param {string} [showsURL]
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* @param {string} [feed]
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*/
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constructor(sources, scheduleURL, showsURL, feed) {
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this.streaming = new RadioStreaming(sources)
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this.scheduleURL = scheduleURL
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this.showsURL = showsURL
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this.feed = feed
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this.name = ""
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this.description = ""
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this.logo = null
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this.shows = []
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this.schedule = null
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}
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res = doc.evaluate('/radio-manifest/schedule', doc)
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const scheduleEl = res.iterateNext()
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let scheduleURL = null
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if (scheduleEl !== null) {
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scheduleURL = scheduleEl.getAttribute('src')
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/**
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* @returns {RadioStreaming}
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*/
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getStreaming() {
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return this.streaming
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}
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res = xml.evaluate('/radio-manifest/shows', xml)
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const showsEl = res.iterateNext()
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let showsURL = null
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if (showsEl !== null) {
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showsURL = showsEl.getAttribute('src')
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setName(name) {
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this.name = name
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}
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res = xml.evaluate('/radio-manifest/feed', xml)
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const feedEl = res.iterateNext()
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let feed = null
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if (feedEl !== null) {
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feed = feedEl.getAttribute('src')
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/**
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* The radio name, as inferred by stream-meta
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*
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* @returns {string}
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*/
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getName() {
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return this.name
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}
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const manifest = new Radio(sources, scheduleURL, showsURL, feed)
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return manifest
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}
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setDescription(desc) {
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this.description = desc
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}
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/**
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* The description of the radio, as inferred by stream-meta
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*
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* @returns {string}
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*/
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getDescription() {
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return this.description
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}
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setLogo(logo) {
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this.logo = logo
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}
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/**
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* @returns {string} the URL of the logo, or `null` if not found
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*/
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getLogo() {
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return this.logo
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}
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/**
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*
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* @returns {Array<RadioShow>}
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*/
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getShows() {
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return this.shows
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}
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/**
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* @returns {RadioShow} The lookup is exact and case-sensitive. If no such show can be found, `null`
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* is returned.
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*/
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getShowByName(showName) {
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if (this.shows === undefined) return null
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return this.shows.find(s => s.name === showName)
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}
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/**
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* @returns {RadioSchedule} If no schedule is present, `null` is returned.
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*/
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getSchedule() {
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return this.schedule
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}
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/**
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* Find if a show is running at the given moment. If there's none, `null` is returned.
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* If possible, a complete {@link RadioShow} including full informations (from shows.xml) is returned.
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* If, instead, we know from the `schedule` that there must be a show, but have no additional detail, a
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* {@link RadioShow} object will be created on the fly.
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*
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* @param {ICAL.Time} [now] If omitted, the current time is used.
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* @returns {RadioShow} If we don't know what's going on at the given moment, `null` is returned.
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*/
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getShowAtTime(now) {
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if (this.schedule === undefined || this.schedule === null) return null
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return this.getSchedule().getNowShow(now)
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}
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/**
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* This static method can create a Radio object from a valid radiomanifest.xml file
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*
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* @param xml An already parsed xml block
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* @returns {Radio}
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*/
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static fromDOM(xml) {
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const doc = xml.cloneNode(true)
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let res = doc.evaluate(
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"/radio-manifest/streaming/source",
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doc,
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null,
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XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
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null
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)
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const sources = []
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for (let i = 0; i < res.snapshotLength; i++) {
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const src = res.snapshotItem(i)
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if (!src.hasAttribute("priority")) {
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src.setAttribute("priority", "0")
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} else if (parseInt(src.getAttribute("priority"), 10) < 0) {
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continue
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}
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sources.push(src)
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}
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res = doc.evaluate("/radio-manifest/schedule", doc)
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const scheduleEl = res.iterateNext()
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let scheduleURL = null
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if (scheduleEl !== null) {
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scheduleURL = scheduleEl.getAttribute("src")
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}
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res = xml.evaluate("/radio-manifest/shows", xml)
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const showsEl = res.iterateNext()
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let showsURL = null
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if (showsEl !== null) {
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showsURL = showsEl.getAttribute("src")
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}
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res = xml.evaluate("/radio-manifest/feed", xml)
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const feedEl = res.iterateNext()
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let feed = null
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if (feedEl !== null) {
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feed = feedEl.getAttribute("src")
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}
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const manifest = new Radio(sources, scheduleURL, showsURL, feed)
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return manifest
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}
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}
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/**
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@ -172,75 +176,71 @@ class Radio {
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* This has probably been derived from the <streaming> block in radiomanifest.xml
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*/
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class RadioStreaming {
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constructor (sources) {
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this.sources = sources.sort(
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(a,b) => this.getPriority(a) < this.getPriority(a)
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)
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}
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/**
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* Get the list of possible options that are provided to the user
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* @returns {Array<string>}
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*/
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getOptions() {
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return this.sources.map(function (x) {
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return x.getAttribute('name')
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})
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}
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/**
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* @private
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*/
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getPriority(element) {
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return parseInt(getAttribute(element, 'priority', '1'))
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}
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/**
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* @private
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*/
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getTopPrioritySources() {
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var topPriority = this.getPriority(this.sources[0])
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return this.sources.filter(
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(src) => parseInt(src.getAttribute('priority'), 10) === topPriority
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)
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}
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/**
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* @return {string} url of the source. Note that this is much probably a playlist, in M3U format
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*/
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getSource(name) {
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if (name === undefined) {
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return this.getTopPrioritySources()[0]
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constructor(sources) {
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this.sources = sources.sort((a, b) => this.getPriority(a) < this.getPriority(a))
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}
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const s = this.sources.find(function (x) {
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return x.getAttribute('name') === name
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})
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if (s === undefined) return s
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return s.getAttribute('src')
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}
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/**
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* This is your go-to function whenever you need a list of URLs to play.
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* They will be picked honoring priorities, and expanding the playlist source
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* @return {Array<string>}
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*/
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async pickURLs() {
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var allSources = this.getTopPrioritySources()
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var allAudios = []
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for(let src of allSources) {
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let url = src.getAttribute('src')
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let resp = await fetch(url)
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allAudios.unshift(... parseM3U(await resp.text()))
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}
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return allAudios
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}
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/**
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* Just like {@link RadioStreaming#pickURLs}, but get a single URL
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* @return {string}
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*/
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async pickURL() {
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var allAudios = await this.pickURLs()
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return allAudios[0]
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}
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/**
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* Get the list of possible options that are provided to the user
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* @returns {Array<string>}
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*/
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getOptions() {
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return this.sources.map(function (x) {
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return x.getAttribute("name")
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})
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}
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/**
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* @private
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*/
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getPriority(element) {
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return parseInt(getAttribute(element, "priority", "1"))
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}
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/**
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* @private
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*/
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getTopPrioritySources() {
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var topPriority = this.getPriority(this.sources[0])
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return this.sources.filter(src => parseInt(src.getAttribute("priority"), 10) === topPriority)
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}
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/**
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* @return {string} url of the source. Note that this is much probably a playlist, in M3U format
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*/
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getSource(name) {
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if (name === undefined) {
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return this.getTopPrioritySources()[0]
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}
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const s = this.sources.find(function (x) {
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return x.getAttribute("name") === name
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})
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if (s === undefined) return s
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return s.getAttribute("src")
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}
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/**
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* This is your go-to function whenever you need a list of URLs to play.
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* They will be picked honoring priorities, and expanding the playlist source
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* @return {Array<string>}
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*/
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async pickURLs() {
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var allSources = this.getTopPrioritySources()
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var allAudios = []
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for (let src of allSources) {
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let url = src.getAttribute("src")
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let resp = await fetch(url)
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allAudios.unshift(...parseM3U(await resp.text()))
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}
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return allAudios
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}
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/**
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* Just like {@link RadioStreaming#pickURLs}, but get a single URL
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* @return {string}
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*/
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async pickURL() {
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var allAudios = await this.pickURLs()
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return allAudios[0]
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}
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}
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/**
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@ -250,92 +250,88 @@ class RadioStreaming {
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* @param {Object} options options. Currenly unused
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* @return {Radio}
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*/
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async function get (siteurl, options) {
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let resp = await fetch(getManifestUrl(siteurl))
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let text = await resp.text()
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async function get(siteurl, options) {
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let resp = await fetch(getManifestUrl(siteurl))
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let text = await resp.text()
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const parser = new DOMParser()
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const dom = parser.parseFromString(text, 'text/xml')
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const manifest = Radio.fromDOM(dom)
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const parser = new DOMParser()
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const dom = parser.parseFromString(text, "text/xml")
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const manifest = Radio.fromDOM(dom)
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try {
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manifest.shows = await shows.get(manifest)
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} catch (e) {
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console.error("Error while fetching shows file", e)
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}
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try {
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manifest.schedule = await calendar.get(manifest)
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if (manifest.schedule !== undefined)
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manifest.schedule.radio = manifest
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} catch (e) {
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console.error("Error while fetching shows file", e)
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}
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resp = null
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try {
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resp = await fetch(getStreaminfoUrl(siteurl))
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} catch (e) {
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true
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}
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if(resp !== null) {
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try {
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text = await resp.text()
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const data = JSON.parse(text)
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const name = data['icy-name']
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if (name !== undefined) {
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manifest.setName(name)
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}
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const desc = data['icy-description']
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if (desc !== undefined) {
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manifest.setDescription(desc)
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}
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const logo = data['icy-logo']
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if (desc !== undefined) {
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manifest.setLogo(logo)
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}
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manifest.shows = await shows.get(manifest)
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} catch (e) {
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console.error("Error while fetching shows file", e)
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}
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try {
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manifest.schedule = await calendar.get(manifest)
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if (manifest.schedule !== undefined) manifest.schedule.radio = manifest
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} catch (e) {
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console.error("Error while fetching shows file", e)
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}
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||||
resp = null
|
||||
try {
|
||||
resp = await fetch(getStreaminfoUrl(siteurl))
|
||||
} catch (e) {
|
||||
if (e instanceof SyntaxError) {
|
||||
true
|
||||
} else {
|
||||
console.error('Error', e)
|
||||
throw e
|
||||
}
|
||||
}
|
||||
}
|
||||
if (resp !== null) {
|
||||
try {
|
||||
text = await resp.text()
|
||||
|
||||
return manifest
|
||||
}
|
||||
const data = JSON.parse(text)
|
||||
const name = data["icy-name"]
|
||||
if (name !== undefined) {
|
||||
manifest.setName(name)
|
||||
}
|
||||
const desc = data["icy-description"]
|
||||
if (desc !== undefined) {
|
||||
manifest.setDescription(desc)
|
||||
}
|
||||
|
||||
|
||||
|
||||
function parseM3U (body) {
|
||||
return body.split('\n').filter((line) => {
|
||||
if (line.startsWith('#')) {
|
||||
return false
|
||||
} else {
|
||||
try {
|
||||
new URL(line); return true
|
||||
} catch {
|
||||
return false
|
||||
}
|
||||
const logo = data["icy-logo"]
|
||||
if (desc !== undefined) {
|
||||
manifest.setLogo(logo)
|
||||
}
|
||||
} catch (e) {
|
||||
if (e instanceof SyntaxError) {
|
||||
true
|
||||
} else {
|
||||
console.error("Error", e)
|
||||
throw e
|
||||
}
|
||||
}
|
||||
}
|
||||
})
|
||||
|
||||
return manifest
|
||||
}
|
||||
|
||||
|
||||
module.exports = {
|
||||
get: get,
|
||||
objs: {
|
||||
Radio: Radio,
|
||||
RadioStreaming: RadioStreaming
|
||||
},
|
||||
parsers: {
|
||||
M3U: parseM3U,
|
||||
radioManifest: Radio.fromDOM,
|
||||
shows: shows.parse,
|
||||
}
|
||||
function parseM3U(body) {
|
||||
return body.split("\n").filter(line => {
|
||||
if (line.startsWith("#")) {
|
||||
return false
|
||||
} else {
|
||||
try {
|
||||
new URL(line)
|
||||
return true
|
||||
} catch {
|
||||
return false
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
export default {
|
||||
get: get,
|
||||
objs: {
|
||||
Radio: Radio,
|
||||
RadioStreaming: RadioStreaming
|
||||
},
|
||||
parsers: {
|
||||
M3U: parseM3U,
|
||||
radioManifest: Radio.fromDOM,
|
||||
shows: shows.parse
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue