Created
January 5, 2014 15:00
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var http = require('http') | |
, os = require('os') | |
, url = require('url') | |
, SSDP = require('../steward/node_modules/node-ssdp') | |
, netmask = require('../steward/node_modules/netmask') | |
, xml2json = require('../steward/node_modules/xml2json') | |
; | |
SSDP.prototype.notify = function(ifname, ipaddr, portno, signature, vars) {/* jshint unused: false */ | |
var out; | |
var self = this; | |
if (!this.sock) return; | |
Object.keys(self.usns).forEach(function (usn) { | |
var bcast, mask, quad0; | |
var udn = self.usns[usn] | |
, heads = | |
{ HOST : '239.255.255.250:1900' | |
, 'CACHE-CONTROL' : 'max-age=20' | |
, SERVER : signature | |
} | |
; | |
out = self.getSSDPHeader('NOTIFY', heads); | |
Object.keys(vars).forEach(function (n) { out += n + ': ' + vars[n] + '\r\n'; }); | |
quad0 = parseInt(ipaddr.split('.')[0], 10); | |
mask = ((quad0 & 0x80) === 0) ? 8 : ((quad0 & 0xc0) === 0xf0) ? 16 : 24; | |
// TBD: use the (obsolete) class A/B/C netmasks | |
bcast = new netmask.Netmask(ipaddr + '/' + mask).broadcast; | |
console.log(); | |
console.log(ifname + ' multicasting to ' + bcast + ':1900 from ' + ipaddr + ':' + portno); | |
console.log(out); | |
out = new Buffer(out); | |
// This works | |
//self.sock.send(out, 0, out.length, 1900, '192.168.1.15'); | |
self.sock.setBroadcast(true); | |
self.sock.send(out, 0, out.length, 1900, bcast); // | |
}); | |
}; | |
var listen = function(ifname, ipaddr, portno) { | |
var ssdp; | |
ssdp = new SSDP({ addMembership : false | |
, responsesOnly : true | |
, multicastLoopback : false | |
, noAdvertisements : true }).on('response', function(msg, rinfo) { | |
var f, i, info, j, lines; | |
lines = msg.toString().split("\r\n"); | |
info = {}; | |
for (i = 1; i < lines.length; i++) { | |
j = lines[i].indexOf(':'); | |
if (j <= 0) break; | |
info[lines[i].substring(0, j)] = lines[i].substring(j + 1).trim(); | |
} | |
f = function() { | |
console.log(''); | |
console.log(rinfo); | |
console.log(info); | |
}; | |
if (info.LOCATION) { | |
http.request(url.parse(info.LOCATION || info.Location), function(response) { | |
var data = ''; | |
response.on('data', function(chunk) { | |
data += chunk.toString(); | |
}).on('end', function() { | |
f(); | |
console.log(xml2json.toJson(data)); | |
}).on('close', function() { | |
f(); | |
console.log('socket premature eof'); | |
}).setEncoding('utf8'); | |
}).on('error', function(err) { | |
f(); | |
console.log('socket error: ' + err.message); | |
}).end(); | |
} | |
}); | |
ssdp.server('255.255.255.255'); // i suspect this should be ipaddr | |
setTimeout(function() { | |
ssdp.notify(ifname, ipaddr, portno, 'AIR CONDITIONER', | |
{ SPEC_VER: 'MSpec-1.00', SERVICE_NAME: 'ControlServer-MLib', MESSAGE_TYPE: 'CONTROLLER_START' }); | |
}, 1000); | |
}; | |
var ifa, ifaces, ifaddrs, ifname; | |
ifaces = os.networkInterfaces(); | |
for (ifname in ifaces) { | |
if ((!ifaces.hasOwnProperty(ifname)) | |
|| (ifname.indexOf('vmnet') === 0) | |
|| (ifname.indexOf('vnic') === 0) | |
|| (ifname.indexOf('tun') !== -1)) continue; | |
ifaddrs = ifaces[ifname]; | |
if (ifaddrs.length === 0) continue; | |
for (ifa = 0; ifa < ifaddrs.length; ifa++) { | |
if ((ifaddrs[ifa].internal) || (ifaddrs[ifa].family !== 'IPv4')) continue; | |
console.log(ifname + ' listening on ' + ifaddrs[ifa].address + ' udp port ' + 1900); | |
listen(ifname, ifaddrs[ifa].address, 1900); | |
} | |
} |
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