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@astro
Created September 5, 2013 15:45
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Reliably record an HTTP Live Stream with node.js
var fs = require('fs');
var request = require('request');
var joinUrl = require('url').resolve;
if (process.argv.length != 3) {
console.log("Please pass playlist URL");
process.exit(1);
}
var plsUrl = process.argv[2];
var INTERVAL = 5 * 1000;
var seen = {};
function loop() {
request.get({ url: plsUrl,
encoding: 'utf8'
}, function(err, res, body) {
if (!err && res.statusCode === 200) {
var lines = body.split("\n");
lines = lines.filter(function(line) {
return line && !/^#/.test(line);
});
var urls = {};
lines.forEach(function(line) {
url = joinUrl(plsUrl, line);
urls[url] = true;
if (!seen.hasOwnProperty(url)) {
download(url);
} else {
console.log("already seen", line);
}
});
seen = urls;
setTimeout(loop, INTERVAL);
} else {
console.error(err || res.statusCode);
setTimeout(loop, INTERVAL);
}
});
}
loop();
function download(url) {
var urlParts = url.split("/");
var fn = Date.now() + "-" + urlParts[urlParts.length - 1];
console.log("download", url);
request.get(url).
pipe(fs.createWriteStream(fn));
}
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