goldilocks.js/lib/check-ports.js

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'use strict';
function bindTcpAndRelease(port, cb) {
var server = require('net').createServer();
server.on('error', function (e) {
cb(e);
});
server.listen(port, function () {
server.close();
cb();
});
}
function checkPorts(config, cb) {
var bound = {};
var failed = {};
bindTcpAndRelease(80, function (e) {
if (e) {
failed[80] = e;
//console.log(e.code);
//console.log(e.message);
} else {
bound['80'] = true;
}
bindTcpAndRelease(443, function (e) {
if (e) {
failed[443] = e;
} else {
bound['443'] = true;
}
if (bound['80'] && bound['443']) {
//config.tcp.ports = [ 80, 443 ];
cb(null, bound);
return;
}
console.warn("default ports 80 and 443 are not available, trying 8443");
bindTcpAndRelease(8443, function (e) {
if (e) {
failed[8443] = e;
} else {
bound['8443'] = true;
}
cb(failed, bound);
});
});
});
}
module.exports.checkPorts = checkPorts;