Moved generateId into an external module

see socketio/socket.io@f7d40d5

lib/server.js

@@ -7,6 +7,7 @@ var qs = require('querystring')
   , parse = require('url').parse
   , readFileSync = require('fs').readFileSync
   , crypto = require('crypto')
+  , base64id = require('base64id')
   , transports = require('./transports')
   , EventEmitter = require('events').EventEmitter
   , Socket = require('./socket')
@@ -110,22 +111,6 @@ Server.prototype.prepare = function(req){
   }
 };
 
-/**
- * Generates an id.
- *
- * @api private
- */
-
-Server.prototype.id = function(){
-  var rand = new Buffer(15);
-  this.sequenceNumber = (this.sequenceNumber + 1) | 0;
-  rand.writeInt32BE(this.sequenceNumber, 11);
-  crypto.randomBytes(12).copy(rand);
-  var id = rand.toString('base64').replace(/\//g, '_').replace(/\+/g, '-');
-  if (this.clients[id]) return this.id();
-  return id;
-};
-
 /**
  * Closes all clients.
  *
@@ -178,7 +163,7 @@ Server.prototype.handleRequest = function(req, res){
  */
 
 Server.prototype.handshake = function(transport, req){
-  var id = this.id();
+  var id = base64id.generateId();
 
   debug('handshaking client "%d"', id);
 

package.json

@@ -12,6 +12,7 @@
         "debug": "0.6.0"
       , "engine.io-client": "0.2.2"
       , "ws": "~0.4.21"
+      , "base64id": "0.1.0"
     }
   , "devDependencies": {
         "mocha": "*"