Added document max length limit, enforceMaxLength on change and show modal when reach the limit.

lib/ot/editor-socketio-server.js

@@ -95,6 +95,7 @@ EditorSocketIOServer.prototype.onOperation = function (socket, revision, operati
     try {
         var clientId = socket.id;
         var wrappedPrime = this.receiveOperation(revision, wrapped);
+        if(!wrappedPrime) return;
         //console.log("new operation: " + JSON.stringify(wrapped));
         this.getClient(clientId).selection = wrappedPrime.meta;
         revision = this.operations.length;

lib/ot/server.js

@@ -1,3 +1,5 @@
+var config = require('../../config');
+
 if (typeof ot === 'undefined') {
   var ot = {};
 }
@@ -28,7 +30,10 @@ ot.Server = (function (global) {
     }
 
     // ... and apply that on the document.
-    this.document = operation.apply(this.document);
+    var newDocument = operation.apply(this.document);
+    // ignore if exceed the max length of document
+    if(newDocument.length > config.documentmaxlength) return;
+    this.document = newDocument;
     // Store operation in history.
     this.operations.push(operation);
 

lib/realtime.js

@@ -207,6 +207,7 @@ function emitRefresh(socket) {
     if (!notename || !notes[notename]) return;
     var note = notes[notename];
     socket.emit('refresh', {
+        docmaxlength: config.documentmaxlength,
         owner: note.owner,
         permission: note.permission,
         updatetime: note.updatetime
@@ -218,13 +219,12 @@ var connectionSocketQueue = [];
 var isDisconnectBusy = false;
 var disconnectSocketQueue = [];
 
-function finishConnection(socket, notename) {
-    var note = notes[notename];
-    note.users[socket.id] = users[socket.id];
+function finishConnection(socket, note, user) {
+    note.users[socket.id] = user;
     note.socks.push(socket);
     note.server.addClient(socket);
-    note.server.setName(socket, users[socket.id].name);
-    note.server.setColor(socket, users[socket.id].color);
+    note.server.setName(socket, user.name);
+    note.server.setColor(socket, user.color);
 
     emitOnlineUsers(socket);
     emitRefresh(socket);
@@ -240,8 +240,9 @@ function finishConnection(socket, notename) {
         startConnection(connectionSocketQueue[0]);
 
     if (config.debug) {
+        var notename = getNotenameFromSocket(socket);
         logger.info('SERVER connected a client to [' + notename + ']:');
-        logger.info(JSON.stringify(users[socket.id]));
+        logger.info(JSON.stringify(user));
         //logger.info(notes);
         getStatus(function (data) {
             logger.info(JSON.stringify(data));
@@ -293,11 +294,11 @@ function startConnection(socket) {
                     updatetime: moment(updatetime).valueOf(),
                     server: server
                 };
-                finishConnection(socket, notename);
+                finishConnection(socket, notes[notename], users[socket.id]);
             });
         });
     } else {
-        finishConnection(socket, notename);
+        finishConnection(socket, notes[notename], users[socket.id]);
     }
 }