Work on channel.js
This commit is contained in:
calzoneman
parent
ba0664641e
commit
9611f86d55
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@ -1,3 +1,6 @@
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var util = require("./utilities");
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var Playlist = require("./playlist");
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var DEFAULT_FILTERS = [
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new Filter("monospace", "`(.+?)`", "g", "<code>$1</code>"),
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new Filter("bold", "\\*(.+?)\\*", "g", "<strong>$1</strong>"),
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@ -7,7 +10,7 @@ var DEFAULT_FILTERS = [
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];
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function Channel(name) {
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var self = this; // Alias `this` to prevent scoping issues
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var self = this; // Alias `this` to prevent scoping issues
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Logger.syslog.log("Loading channel " + name);
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// Defaults
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@ -16,7 +19,7 @@ function Channel(name) {
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self.uniqueName = name.toLowerCase(); // To prevent casing issues
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self.registered = false; // set to true if the channel exists in the database
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self.users = [];
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self.mutedUsers = new $util.Set();
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self.mutedUsers = new util.Set();
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self.playlist = new Playlist(self);
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self.plqueue = new AsyncQueue(); // For synchronizing playlist actions
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self.drinks = 0;
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@ -81,12 +84,13 @@ function Channel(name) {
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html: "" // Filtered MOTD text (XSS removed; \n replaced by <br>)
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};
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self.filters = DEFAULT_FILTERS;
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self.banlist = new Banlist();
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self.ipbans = {};
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self.namebans = {};
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self.logger = new Logger.Logger(path.join(__dirname, "../chanlogs",
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self.uniqueName + ".log"));
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self.css = ""; // Up to 20KB of inline CSS
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self.js = ""; // Up to 20KB of inline Javascript
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self.error = false; // Set to true if something bad happens => don't save state
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self.on("ready", function () {
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@ -150,7 +154,7 @@ Channel.prototype.loadState = function () {
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return;
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}
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fs.readFile(path.join(__dirname, "../chandump", self.name),
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fs.readFile(path.join(__dirname, "../chandump", self.uniqueName),
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function (err, data) {
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if (err) {
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// File didn't exist => start fresh
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@ -160,7 +164,7 @@ Channel.prototype.loadState = function () {
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} else {
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Logger.errlog.log("Failed to open channel dump " + self.uniqueName);
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Logger.errlog.log(err);
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self.setMOTD("Internal error when loading channel");
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self.setMOTD("Channel state load failed. Contact an administrator.");
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self.error = true;
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self.emit("ready");
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}
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@ -173,11 +177,16 @@ Channel.prototype.loadState = function () {
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// Load the playlist
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if ("playlist" in data) {
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self.playlist.load(data.playlist, function () {
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self.sendPlaylist(self.users);
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self.sendPlaylistMeta(self.users);
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self.playlist.startPlayback(data.playlist.time);
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});
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}
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// Playlist lock
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self.setLock(data.playlistLock || false);
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// Configurables
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if ("opts" in data) {
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for (var key in data.opts) {
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@ -203,8 +212,330 @@ Channel.prototype.loadState = function () {
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}
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}
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} catch (e) {
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// MOTD
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if ("motd" in data) {
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self.motd = {
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motd: data.motd.motd,
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html: data.motd.html
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};
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}
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// Chat history
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if ("chatbuffer" in data) {
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data.chatbuffer.forEach(function (msg) {
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self.chatbuffer.push(msg);
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});
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}
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// Inline CSS/JS
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self.css = data.css || "";
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self.js = data.js || "";
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self.emit("ready");
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} catch (e) {
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self.error = true;
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Logger.errlog.log("Channel dump load failed (" + self.uniqueName + "): " + e);
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self.setMOTD("Channel state load failed. Contact an administrator.");
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self.emit("ready");
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}
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});
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};
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Channel.prototype.saveState = function () {
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var self = this;
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if (self.error) {
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return;
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}
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if (!self.registered || self.uniqueName === "") {
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return;
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}
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var filters = self.filters.map(function (f) {
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return f.pack();
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});
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var data = {
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playlist: self.playlist.dump(),
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opts: self.opts,
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permissions: self.permissions,
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filters: filters,
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motd: self.motd,
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playlistLock: self.playlistLock,
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chatbuffer: self.chatbuffer,
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css: self.css,
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js: self.js
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};
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var text = JSON.stringify(data);
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fs.writeFileSync(path.join(__dirname, "../chandump", self.uniqueName), text);
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};
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/**
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* Checks whether a user has the given permission node
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*/
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Channel.prototype.hasPermission = function (user, key) {
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// Special case: you can have separate permissions for when playlist is unlocked
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if (key.indexOf("playlist") === 0 && !this.playlistLock) {
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var key2 = "o" + key;
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var v = this.permissions[key2];
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if (typeof v === "number" && user.rank >= v) {
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return true;
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}
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}
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var v = this.permissions[key];
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if (typeof v !== "number") {
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return false;
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}
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return user.rank >= v;
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};
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/**
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* Defer a callback to complete when the channel is ready to accept users.
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* Called immediately if the ready flag is already set
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*/
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Channel.prototype.whenReady = function (fn) {
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var self = this;
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if (self.ready) {
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setImmediate(fn);
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} else {
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self.on("ready", fn);
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}
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};
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/**
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* Looks up a user's rank in the channel. Computed as max(global_rank, channel rank)
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*/
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Channel.prototype.getRank = function (name, callback) {
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var self = this;
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db.users.getGlobalRank(name, function (err, global) {
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if (self.dead) {
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return;
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}
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if (err) {
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callback(err, null);
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return;
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}
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if (!self.registered) {
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callback(null, global);
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return;
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}
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db.channels.getRank(self.name, name, function (err, rank) {
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if (self.dead) {
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return;
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}
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if (err) {
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callback(err, null);
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return;
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}
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callback(null, Math.max(rank, global));
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});
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});
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};
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/**
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* Called when a user joins a channel
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*/
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Channel.prototype.join = function (user, password) {
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var self = this;
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self.whenReady(function () {
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if (self.opts.password !== false && user.rank < 2) {
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if (password !== self.opts.password) {
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user.socket.emit("needPassword", typeof password === "undefined");
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return;
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}
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}
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user.socket.emit("cancelNeedPassword");
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var range = user.ip.replace(/(\d+)\.(\d+)\.(\d+)\.(\d+)/, "$1.$2.$3");
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if (user.ip in self.ipbans || range in self.ipbans ||
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user.name.toLowerCase() in self.namebans) {
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user.kick("You're banned!");
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return;
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}
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user.autoAFK();
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user.socket.join(self.uniqueName);
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user.channel = self;
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self.users.push(user);
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self.sendVoteskipUpdate(self.users);
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self.sendUsercount(self.users);
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user.whenLoggedIn(function () {
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var lname = user.name.toLowerCase();
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for (var i = 0; i < self.users.length; i++) {
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if (self.users[i] === user) {
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Logger.errlog.log("Wat: join() called on user already in channel");
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break;
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}
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self.users[i].kick("Duplicate login");
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}
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self.getRank(user.name, function (err, rank) {
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if (self.dead) {
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return;
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}
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if (err) {
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user.rank = user.global_rank;
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} else {
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user.rank = Math.max(rank, user.global_rank);
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}
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user.socket.emit("rank", user.rank);
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self.sendUserJoin(self.users);
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});
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});
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self.sendPlaylist([user]);
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self.sendMediaUpdate([user]);
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self.sendPlaylistLock([user]);
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self.sendUserlist([user]);
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self.sendRecentchat([user]);
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self.sendCSSJS([user]);
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self.sendPoll([user]);
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self.sendOpts([user]);
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self.sendPermissions([user]);
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self.sendMotd([user]);
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self.sendDrinkCount([user]);
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self.logger.log("+++ " + user.ip + " joined");
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Logger.syslog.log(user.ip + " joined channel " + self.name);
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});
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};
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/**
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* Called when a user leaves the channel.
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* Cleans up and sends appropriate updates to other users
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*/
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Channel.prototype.part = function (user) {
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user.channel = null;
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// Clear poll vote
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if (self.poll) {
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self.poll.unvote(user.ip);
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self.sendPoll(self.users);
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}
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// Clear voteskip vote
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if (self.voteskip) {
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self.voteskip.unvote(user.ip);
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self.sendVoteskipUpdate(self.users);
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}
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// Return video lead to server if necessary
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if (self.leader === user) {
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self.changeLeader("");
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}
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// Remove from users array
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var idx = self.users.indexOf(user);
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if (idx >= 0 && idx < self.users.length) {
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self.users.splice(idx, 1);
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}
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// A change in usercount might cause a voteskip result to change
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self.checkVoteskipPass();
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self.sendUsercount(self.users);
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if (user.loggedIn) {
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self.sendUserLeave(self.users, user);
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}
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self.logger.log("--- " + user.ip + " (" + user.name + ") left");
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if (self.users.length === 0) {
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self.emit("empty");
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return;
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}
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};
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/**
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* Set the MOTD and broadcast it to connected users
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*/
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Channel.prototype.setMOTD = function (message) {
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var self = this;
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self.motd.motd = message;
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// TODO XSS filter
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self.motd.html = message.replace(/\n/g, "<br>");
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self.sendMOTD(self.users);
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};
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/**
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* Send the MOTD to the given users
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*/
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Channel.prototype.sendMOTD = function (users) {
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var self = this;
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users.forEach(function (u) {
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u.socket.emit("setMotd", self.motd);
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});
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};
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Channel.prototype.tryReadLog = function (user) {
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if (user.rank < 3) {
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user.kick("Attempted readChanLog with insufficient permission");
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return;
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}
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var filterIp = user.global_rank < 255;
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this.readLog(filterIp, function (err, data) {
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if (err) {
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user.socket.emit("readChanLog", {
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success: false,
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data: "Reading channel log failed."
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});
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} else {
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user.socket.emit("readChanLog", {
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success: true,
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data: data
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});
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}
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});
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};
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Channel.prototype.readLog = function (filterIp, callback) {
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var maxLen = 102400; // Limit to last 100KiB
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var file = this.logger.filename;
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fs.stat(file, function (err, data) {
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if (err) {
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callback(err, null);
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return;
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}
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var start = Math.max(data.size - maxLen, 0);
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var end = data.size - 1;
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var rs = fs.createReadStream(file, {
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start: start,
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end: end
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});
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var buffer = "";
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rs.on("data", function (data) {
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buffer += data;
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});
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rs.on("end", function () {
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if (filterIp) {
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buffer = buffer.replace(
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/\d+\.\d+\.(\d+\.\d+)/g,
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"x.x.$1"
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).replace(
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/\d+\.\d+\.(\d+)/g,
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"x.x.$.*"
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);
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}
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callback(null, buffer);
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});
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});
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};
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