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var Q = require("q");
var events = require("events");
var http = require("http");
var send = require("send");
var util = require("util");
var url = require("url");
var Server = function() {
this.running = null;
this.dir = null;
this.port = 0;
this.sockets = [];
};
util.inherits(Server, events.EventEmitter);
// Return true if the server is running
Server.prototype.isRunning = function() {
return !!this.running;
};
// Stop the server
Server.prototype.stop = function() {
var that = this;
if (!this.isRunning()) return Q();
var d = Q.defer();
this.running.close(function(err) {
that.running = null;
that.emit("state", false);
if (err) d.reject(err);
else d.resolve();
});
for (var i = 0; i < this.sockets.length; i++) {
this.sockets[i].destroy();
}
return d.promise;
};
Server.prototype.start = function(dir, port) {
var that = this, pre = Q();
port = port || 8004;
if (that.isRunning()) pre = this.stop();
return pre
.then(function() {
var d = Q.defer();
that.running = http.createServer(function(req, res){
// Render error
function error(err) {
res.statusCode = err.status || 500;
res.end(err.message);
}
// Redirect to directory"s index.html
function redirect() {
res.statusCode = 301;
res.setHeader("Location", req.url + "/");
res.end("Redirecting to " + req.url + "/");
}
// Send file
send(req, url.parse(req.url).pathname)
.root(dir)
.on("error", error)
.on("directory", redirect)
.pipe(res);
});
that.running.on("connection", function (socket) {
that.sockets.push(socket);
socket.setTimeout(4000);
socket.on("close", function () {
that.sockets.splice(that.sockets.indexOf(socket), 1);
});
});
that.running.listen(port, function(err) {
if (err) return d.reject(err);
that.port = port;
that.dir = dir;
that.emit("state", true);
d.resolve();
});
return d.promise;
});
};
module.exports = Server;
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