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MetadataLoader.hx
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MetadataLoader.hx
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////////////////////////////////////////////////////////////////////////////////
//
// Muses Radio Player - Radio Streaming player written in Haxe.
//
// Copyright (C) 2009-2014 Federico Bricker
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// This Project was initially based on FOggPlayer by Bill Farmer. So
// my special thanks to him! :)
//
// Federico Bricker f bricker [at] gmail [dot] com.
//
////////////////////////////////////////////////////////////////////////////////
import flash.accessibility.Accessibility;
import flash.events.Event;
// MetadataLoader Main class
class MetadataLoader {
var player : Player;
var ui : UI;
var counter : Int;
var delay : Int;
var fileLoader: flash.net.URLLoader;
var proxy : String;
var metadataSource : String;
var mUrl : String;
public function new(player:Player, ui:UI, interval:Int, metadataSource:String, proxy:String, mUrl:String) {
if (metadataSource != "icecast" && metadataSource != "streamtheworld" && metadataSource != "shoutcast") {
return;
}
this.player=player;
this.ui = ui;
this.metadataSource = metadataSource;
this.mUrl = mUrl;
if(proxy!=null && proxy!=''){
this.proxy=proxy;
}
delay=MusesRadioPlayer.FPS*interval;
counter=delay-Math.round(MusesRadioPlayer.FPS/2);
ui.addEventListener(flash.events.Event.ENTER_FRAME,loop);
}
public function loop(_){
counter++;
if(counter>=delay && player.isPlaying()){
counter = 0;
var url:String=null;
url = switch(metadataSource) {
case "icecast": player.getCurrentUrl().split("?")[0] + ".xspf";
case "streamtheworld": mUrl + "&" + Date.now().getTime();
case "shoutcast": player.getCurrentUrl().substr(0,player.getCurrentUrl().indexOf('/',9)) + '/7.html';
default: null;
}
if(proxy!=null){
url=proxy+'?url='+StringTools.replace(url,':','%3A');
}
loadMetadata(url);
}
}
function loadMetadata(url:String){
var urlRequest : flash.net.URLRequest=new flash.net.URLRequest();
fileLoader = new flash.net.URLLoader();
urlRequest.url = url;
this.fileLoader.addEventListener(Event.COMPLETE, switch(metadataSource) {
case "icecast": loadIcecastEvent;
case "streamtheworld": loadStreamTheWorldEvent;
case "shoutcast": loadShoutcastEvent;
default: null; } );
fileLoader.load(urlRequest);
}
function loadStreamTheWorldEvent(e: Event) {
var loader=cast(e.target,flash.net.URLLoader);
var base = Xml.parse(loader.data).firstChild();
if(base.nodeName.toLowerCase()!='nowplaying-info-list'){ // CHECK THIS IS A VALID XML
return;
}
var arr : Array<AudioMetadata> = new Array<AudioMetadata>();
var metadata : AudioMetadata;
for ( elem in base.elementsNamed("nowplaying-info")) {
metadata = new AudioMetadata();
for (track in elem.elementsNamed("property")) {
if (track.get("name") == 'cue_title')
metadata.title = track.firstChild().nodeValue;
if (track.get("name") == 'track_artist_name')
metadata.artist = track.firstChild().nodeValue;
if (track.get("name") == 'cue_time_start')
metadata.comment = track.firstChild().nodeValue;
}
arr.push(metadata);
}
ui.setMetadataFromArray(arr);
}
function loadShoutcastEvent(e: Event) {
var loader=cast(e.target,flash.net.URLLoader);
var data:String = loader.data;
data=StringTools.replace(data,'<html>','');
data=StringTools.replace(data,'</html>','');
data=StringTools.replace(data,'<body>','');
data=StringTools.replace(data,'</body>','');
var parsed:Array<String> = data.split(",");
var currentSong:String=parsed[6];
for(i in 7 ... parsed.length) currentSong += ','+parsed[i];
ui.setMetadataFromString(StringTools.trim(currentSong));
}
function loadIcecastEvent(e: Event){
var loader=cast(e.target,flash.net.URLLoader);
var base = Xml.parse(loader.data).firstElement();
if (base.nodeName.toLowerCase() != 'playlist') return;
for ( elem in base.elements()) {
if (elem.nodeName.toLowerCase() != 'tracklist') continue;
for(track in elem.elements()){
if (track.nodeName.toLowerCase() != 'track') continue;
for (title in track.elements()) {
if (title.nodeName.toLowerCase() != 'title') continue;
ui.setMetadataFromString(title.firstChild().nodeValue);
return;
}
}
}
}
}