first commit

2021-11-16 23:22:16 +01:00 · 2021-11-16 23:22:16 +01:00 · af9f6c2598
commit af9f6c2598
4 changed files with 144 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,11 @@
+<!doctype html>
+<html>
+    <head>
+    </head>
+    <body>
+        Ciao
+        <script src="libs/ical.min.js"></script>
+        <script src="radiomanifest.js"></script>
+        <script src="ui.js"></script>
+    </body>
+</html>
--- a/libs/ical.min.js
+++ b/libs/ical.min.js
--- a/radiomanifest.js
+++ b/radiomanifest.js
@ -0,0 +1,121 @@
+function getStreaminfoUrl(siteurl) {
+    return siteurl + '/streaminfo.json'; // XXX: improve this logic
+}
+function getManifestUrl(siteurl) {
+    return siteurl + '/radiomanifest.xml'; // XXX: improve this logic
+}
+function parseRadioManifest(xml) {
+    var res = xml.evaluate('/radio-manifest/streaming/source', xml)
+    var sources = []
+    while(true) {
+        var src = res.iterateNext()
+        if(src === null) break;
+        if(!src.hasAttribute("priority")) {
+            src.setAttribute("priority", "0")
+        } else if(parseInt(src.getAttribute("priority"), 10) < 0) {
+            continue;
+        }
+        sources.push(src)
+    }
+    sources.sort(function cmp(a,b) {
+        return parseInt(a.getAttribute("priority", 10)) < parseInt(b.getAttribute("priority", 10));
+    })
+
+    res = xml.evaluate('/radio-manifest/schedule', xml)
+    var scheduleEl = res.iterateNext()
+    var schedule = null
+    if(scheduleEl !== null) {
+        schedule = scheduleEl.getAttribute("url")
+    }
+
+    res = xml.evaluate('/radio-manifest/shows', xml)
+    var showsEl = res.iterateNext()
+    var shows = null
+    if(showsEl !== null) {
+        shows = showsEl.getAttribute("src")
+    }
+
+    var manifest = new Radio(sources, schedule, shows)
+    return manifest
+}
+
+function Radio(sources, schedule, shows) {
+    this.streaming = new RadioStreaming(sources)
+    this.schedule = schedule
+    this.shows = shows
+    this.name = ""
+}
+
+Radio.prototype.getStreaming = function() {
+    return this.streaming
+}
+
+Radio.prototype.setName = function(name) {
+    this.name = name
+}
+
+function RadioStreaming(sources) {
+    this.sources = sources
+}
+
+RadioStreaming.prototype.getOptions = function() {
+    return this.sources.map(function(x) {
+        return x.getAttribute('name')
+    })
+}
+RadioStreaming.prototype.getSource = function (name) {
+    if(name === undefined) {
+
+    }
+    var s = this.sources.find(function(x) {
+        return x.getAttribute('name') === name
+    })
+    if(s === undefined) return s
+    return s.getAttribute('src')
+}
+
+async function get(siteurl, options) {
+    let resp = await fetch(getManifestUrl(siteurl));
+    let text = await resp.text()
+
+    var parser = new DOMParser();
+    var dom = parser.parseFromString(text, 'text/xml')
+    var manifest = parseRadioManifest(dom)
+
+    resp = null
+    try {
+        resp = await fetch(getStreaminfoUrl(siteurl));
+        text = await resp.text()
+
+        var data = JSON.parse(text)
+        var name = data["icy-name"]
+        if(name !== undefined) {
+            manifest.setName(name)
+        }
+    } catch (e) {
+        if(e instanceof TypeError && e.message.startsWith('NetworkError')) {
+            // the fetch has failed
+            true
+        } else if(e instanceof SyntaxError && e.message.startsWith('JSON.parse')) {
+            true
+        }
+        else {
+            console.error('Error', e)
+            throw e
+        }
+    }
+
+    // XXX: in base alle options fai fetch anche di altra roba
+    return manifest
+}
+
+function parseM3U(body) {
+    body.split("\n").filter((e) => {
+        if(e.startsWith("#")) {
+            return false
+        } else {
+            try { new URL(e); return true }
+            catch {return false}
+        }
+    })
+}
--- a/ui.js
+++ b/ui.js
@ -0,0 +1,10 @@
+async function fai() {
+    var radio = await get("https://www.ondarossa.info/")
+    // var radio = await get("https://boyska.degenerazione.xyz/radiomanifest/examples/empty/")
+    console.log('radio?', radio)
+    var s = radio.getStreaming()
+    console.log(s.getOptions())
+    console.log(s.getSource(s.getOptions()[0]))
+}
+
+fai()