Added configuration and made key length configurable

lib/document_handler.js

@@ -2,8 +2,8 @@ var winston = require('winston');
 
 // For handling serving stored documents
 
-var DocumentHandler = function() {
-
+var DocumentHandler = function(options) {
+  this.keyLength = options.keyLength || 20;
 };
 
 // TODO implement with FS backend
@@ -45,11 +45,10 @@ DocumentHandler.prototype.handlePost = function(request, response) {
 };
 
 // Generate a random key
-// TODO make length configurable
 DocumentHandler.prototype.randomKey = function() {
   var text = '';
   var keyspace = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
-  for (var i = 0; i < 6; i++) {
+  for (var i = 0; i < this.keyLength; i++) {
     text += keyspace.charAt(Math.floor(Math.random() * keyspace.length));
   }
   return text;