etherpad-lite/node/server.js
Peter 'Pita' Martischka f7b46f6e69 Documentation
2011-05-30 15:53:11 +01:00

156 lines
4.2 KiB
JavaScript

/**
* This module is started with bin/run.sh. It sets up a Express HTTP and a Socket.IO Server.
* Static file Requests are answered directly from this module, Socket.IO messages are passed
* to MessageHandler and minfied requests are passed to minified.
*/
/*
* 2011 Peter 'Pita' Martischka
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require('joose');
var socketio = require('socket.io');
var settings = require('./settings');
var db = require('./db');
var async = require('async');
var express = require('express');
var path = require('path');
var minify = require('./minify');
var serverName = "Etherpad-Lite ( http://j.mp/ep-lite )";
//cache a week
exports.maxAge = 1000*60*60*24*7;
async.waterfall([
//initalize the database
function (callback)
{
db.init(callback);
},
//initalize the http server
function (callback)
{
//create server
var app = express.createServer();
//set logging
if(settings.logHTTP)
app.use(express.logger({ format: ':date: :status, :method :url' }));
//serve static files
app.get('/static/*', function(req, res)
{
res.header("Server", serverName);
var filePath = path.normalize(__dirname + "/.." + req.url.split("?")[0]);
res.sendfile(filePath, { maxAge: exports.maxAge });
});
//serve minified files
app.get('/minified/:id', function(req, res)
{
res.header("Server", serverName);
var id = req.params.id;
if(id == "pad.js")
{
minify.padJS(req,res);
}
else
{
res.send('404 - Not Found', 404);
}
});
//serve pad.html under /p
app.get('/p/:pad', function(req, res)
{
res.header("Server", serverName);
var filePath = path.normalize(__dirname + "/../static/pad.html");
res.sendfile(filePath, { maxAge: exports.maxAge });
});
//serve index.html under /
app.get('/', function(req, res)
{
res.header("Server", serverName);
var filePath = path.normalize(__dirname + "/../static/index.html");
res.sendfile(filePath, { maxAge: exports.maxAge });
});
//serve robots.txt
app.get('/robots.txt', function(req, res)
{
res.header("Server", serverName);
var filePath = path.normalize(__dirname + "/../static/robots.txt");
res.sendfile(filePath, { maxAge: exports.maxAge });
});
//serve favicon.ico
app.get('/favicon.ico', function(req, res)
{
res.header("Server", serverName);
var filePath = path.normalize(__dirname + "/../static/favicon.ico");
res.sendfile(filePath, { maxAge: exports.maxAge });
});
//let the server listen
app.listen(settings.port);
console.log("Server is listening at port " + settings.port);
//init socket.io and redirect all requests to the MessageHandler
var io = socketio.listen(app);
var messageHandler = require("./MessageHandler");
messageHandler.setSocketIO(io);
io.on('connection', function(client){
try{
messageHandler.handleConnect(client);
}catch(e){errorlog(e);}
client.on('message', function(message){
try{
messageHandler.handleMessage(client, message);
}catch(e){errorlog(e);}
});
client.on('disconnect', function(){
try{
messageHandler.handleDisconnect(client);
}catch(e){errorlog(e);}
});
});
callback(null);
}
]);
function errorlog(e)
{
var timeStr = new Date().toUTCString() + ": ";
if(typeof e == "string")
{
console.error(timeStr + e);
}
else if(e.stack != null)
{
console.error(timeStr + e.stack);
}
else
{
console.error(timeStr + JSON.stringify(e));
}
}