relocate and rename Storage.js. implement a simple, non-persistent in memory datastore for those who'd rather not bother with mongodb. Continue to default to previous values.

.gitignore

@@ -2,3 +2,4 @@ www/bower_components/*
 node_modules
 /config.js
 customization
+.*.swp

config.js.dist

@@ -1,6 +1,7 @@
 module.exports = {
     httpPort: 3000,
     websocketPort: 3001,
+    storage: './storage/mongo',
     mongoUri: "mongodb://demo_user:demo_password@ds027769.mongolab.com:27769/demo_database",
     // mongoUri: "mongodb://localhost:27017/cryptpad",
     mongoCollectionName: 'cryptpad',

server.js

@@ -4,11 +4,13 @@ var Https = require('https');
 var Fs = require('fs');
 var WebSocketServer = require('ws').Server;
 var ChainPadSrv = require('./ChainPadSrv');
-var Storage = require('./Storage');
 
 var config = require('./config');
 config.websocketPort = config.websocketPort || config.httpPort;
 
+// support multiple storage back ends
+var Storage = require(config.storage||'./storage/mongo');
+
 var app = Express();
 app.use(Express.static(__dirname + '/www'));
 
@@ -61,11 +63,13 @@ app.get('/api/config', function(req, res){
 
 var httpServer = httpsOpts ? Https.createServer(httpsOpts, app) : Http.createServer(app);
 
-httpServer.listen(config.httpPort);
-console.log('listening on port ' + config.httpPort);
+httpServer.listen(config.httpPort,config.httpAddress,function(){
+    console.log('listening on %s',config.httpPort);
+});
 
 var wsConfig = { server: httpServer };
 if (config.websocketPort !== config.httpPort) {
+    console.log("setting up a new websocket server");
     wsConfig = { port: config.websocketPort};
 }
 

storage/amnesia.js

@@ -0,0 +1,48 @@
+console.log("Loading amnesiadb. This is a horrible idea in production, as data *will not* persist\n");
+
+/*
+    As the comment says, this module does nothing to make your data persist
+    across sessions. If your process crashes for any reason, all pads will die.
+
+    This might be useful if you want to debug other parts of the codebase, if
+    you want to test out cryptpad without installing mongodb locally, or if
+    you don't want to rely on a remote db like the one at mongolab.com.
+
+    Maybe you just like the idea of a forgetful pad? To use this module, edit
+    config.js to include a directive `storage: './storage/amnesia'
+
+    Enjoy!
+*/
+
+var db=[],
+    index=0;
+
+var insert = function(channelName, content, cb){
+    var val = {
+        id:index++,
+        chan: channelName,
+        msg: content,
+        time: new Date().getTime(),
+    };
+    db.push(val);
+    cb();
+};
+
+var getMessages = function(channelName, cb){
+    db.sort(function(a,b){
+        return a.id - b.id;
+    });
+    db.filter(function(val){
+        return val.chan == channelName;
+    }).forEach(function(doc){
+        console.log(doc);
+        cb(doc.msg);
+    });
+};
+
+module.exports.create = function(conf, cb){
+    cb({
+        message: insert,
+        getMessages: getMessages,
+    });
+};

storage/mongo.js

@@ -22,6 +22,7 @@ var COLLECTION_NAME = 'cryptpad';
 var insert = function (coll, channelName, content, cb) {
     var val = {chan: channelName, msg:content, time: (new Date()).getTime()};
     coll.insertOne(val, {}, function (err, r) {
+        console.log(r);
         if (err || (r.insertedCount !== 1)) {
             console.log('failed to insert ' + err);
             return;
@@ -31,7 +32,12 @@ var insert = function (coll, channelName, content, cb) {
 };
 
 var getMessages = function (coll, channelName, cb) {
-    coll.find({chan:channelName}).sort( { _id: 1 } ).forEach(function (doc) {
+    // find entries with a matching channelname
+    coll.find({chan:channelName})
+    // sort by _id, ascending
+    .sort( { _id: 1 } )
+    // iterate over entries
+    .forEach(function (doc) {
         cb(doc.msg);
     }, function (err) {
         if (!err) { return; }