var path = require("path"); var fs = require("fs"); var express = require("express"); var Config = require("./config"); var Logger = require("./logger"); var Channel = require("./channel"); var User = require("./user"); const VERSION = "2.3.1"; function getIP(req) { var raw = req.connection.remoteAddress; var forward = req.header("x-forwarded-for"); if(Server.cfg["trust-x-forward"] && forward) { var ip = forward.split(",")[0]; Logger.syslog.log("REVPROXY " + raw + " => " + ip); return ip; } return raw; } function getSocketIP(socket) { var raw = socket.handshake.address.address; if(Server.cfg["trust-x-forward"]) { if(typeof socket.handshake.headers["x-forwarded-for"] == "string") { var ip = socket.handshake.headers["x-forwarded-for"] .split(",")[0]; Logger.syslog.log("REVPROXY " + raw + " => " + ip); return ip; } } return raw; } var Server = { channels: [], channelLoaded: function (name) { for(var i in this.channels) { if(this.channels[i].canonical_name == name.toLowerCase()) return true; } return false; }, getChannel: function (name) { for(var i in this.channels) { if(this.channels[i].canonical_name == name.toLowerCase()) return this.channels[i]; } var c = new Channel(name, this); this.channels.push(c); return c; }, unloadChannel: function(chan) { if(chan.registered) chan.saveDump(); chan.playlist.die(); chan.logger.close(); for(var i in this.channels) { if(this.channels[i].canonical_name == chan.canonical_name) { this.channels.splice(i, 1); break; } } chan.name = ""; }, stats: null, app: null, io: null, httpserv: null, ioserv: null, db: null, ips: {}, acp: null, httpaccess: null, logHTTP: function (req, status) { if(status === undefined) status = 200; var ip = req.connection.remoteAddress; var ip2 = false; if(this.cfg["trust-x-forward"]) ip2 = req.header("x-forwarded-for") || req.header("cf-connecting-ip"); var ipstr = !ip2 ? ip : ip + " (X-Forwarded-For " + ip2 + ")"; var url = req.url; // Remove query if(url.indexOf("?") != -1) url = url.substring(0, url.lastIndexOf("?")); this.httpaccess.log([ipstr, req.method, url, status, req.headers["user-agent"]].join(" ")); }, init: function () { this.httpaccess = new Logger.Logger("httpaccess.log"); this.app = express(); this.app.use(express.bodyParser()); // channel path this.app.get("/r/:channel(*)", function (req, res, next) { var c = req.params.channel; if(!c.match(/^[\w-_]+$/)) { res.redirect("/" + c); } else { this.logHTTP(req); res.sendfile(__dirname + "/www/channel.html"); } }.bind(this)); // api path this.api = require("./api")(this); /* this.app.get("/api/:apireq(*)", function (req, res, next) { this.logHTTP(req); this.api.handle(req.url.substring(5), req, res); }.bind(this)); */ this.app.get("/", function (req, res, next) { this.logHTTP(req); res.sendfile(__dirname + "/www/index.html"); }.bind(this)); // default path this.app.get("/:thing(*)", function (req, res, next) { var opts = { root: __dirname + "/www", maxAge: this.cfg["asset-cache-ttl"] } res.sendfile(req.params.thing, opts, function (err) { if(err) { this.logHTTP(req, err.status); // Damn path traversal attacks if(req.params.thing.indexOf("%2e") != -1) { res.send("Don't try that again, I'll ban you"); Logger.syslog.log("WARNING: Attempted path "+ "traversal from /" + getIP(req)); Logger.syslog.log("URL: " + req.url); } // Something actually went wrong else { // Status codes over 500 are server errors if(err.status >= 500) Logger.errlog.log(err); res.send(err.status); } } else { this.logHTTP(req); } }.bind(this)); }.bind(this)); // fallback this.app.use(function (err, req, res, next) { this.logHTTP(req, err.status); if(err.status == 404) { res.send(404); } else { next(err); } }.bind(this)); // bind servers this.httpserv = this.app.listen(Server.cfg["web-port"], Server.cfg["express-host"]); this.ioserv = express().listen(Server.cfg["io-port"], Server.cfg["express-host"]); // init socket.io this.io = require("socket.io").listen(this.ioserv); this.io.set("log level", 1); this.io.sockets.on("connection", function (socket) { var ip = getSocketIP(socket); socket._ip = ip; if(this.db.checkGlobalBan(ip)) { Logger.syslog.log("Disconnecting " + ip + " - gbanned"); socket.emit("kick", { reason: "You're globally banned." }); socket.disconnect(true); return; } socket.on("disconnect", function () { this.ips[ip]--; }.bind(this)); if(!(ip in this.ips)) this.ips[ip] = 0; this.ips[ip]++; if(this.ips[ip] > Server.cfg["ip-connection-limit"]) { socket.emit("kick", { reason: "Too many connections from your IP address" }); socket.disconnect(true); return; } // finally a valid user Logger.syslog.log("Accepted socket from /" + socket._ip); new User(socket, this); }.bind(this)); // init database this.db = require("./database"); this.db.setup(Server.cfg); this.db.init(); // init ACP this.acp = require("./acp")(this); // init stats this.stats = require("./stats")(this); // init media retriever this.infogetter = require("./get-info")(this); }, shutdown: function () { Logger.syslog.log("Unloading channels"); for(var i in this.channels) { if(this.channels[i].registered) { Logger.syslog.log("Saving /r/" + this.channels[i].name); this.channels[i].saveDump(); } } Logger.syslog.log("Goodbye"); process.exit(0); } }; Logger.syslog.log("Starting CyTube v" + VERSION); fs.exists("chanlogs", function (exists) { exists || fs.mkdir("chanlogs"); }); fs.exists("chandump", function (exists) { exists || fs.mkdir("chandump"); }); Config.load(Server, "cfg.json", function () { Server.init(); if(!Server.cfg["debug"]) { process.on("uncaughtException", function (err) { Logger.errlog.log("[SEVERE] Uncaught Exception: " + err); Logger.errlog.log(err.stack); }); process.on("SIGINT", function () { Server.shutdown(); }); } });