add callback to filehandler by @jake09

Author: scarlet9

index.js

@@ -47,8 +47,8 @@ JqueryFileUploadMiddleware.prototype.configure = function (options) {
     this.options = this.prepareOptions(options);
 };
 
-JqueryFileUploadMiddleware.prototype.fileHandler = function (options) {
-    return require('./lib/filehandler')(this, this.prepareOptions(_.extend(this.options, options)));
+JqueryFileUploadMiddleware.prototype.fileHandler = function (options, callback) {
+    return require('./lib/filehandler')(this, this.prepareOptions(_.extend(this.options, options)), callback);
 };
 
 JqueryFileUploadMiddleware.prototype.fileManager = function (options) {

lib/filehandler.js

@@ -1,13 +1,15 @@
-module.exports = function (middleware, options) {
+module.exports = function (middleware, options, callback) {
 
-    return function (req, res, next) {
+    return function (req, res) {
         res.set({
             'Access-Control-Allow-Origin': options.accessControl.allowOrigin,
             'Access-Control-Allow-Methods': options.accessControl.allowMethods
         });
         var UploadHandler = require('./uploadhandler')(options);
         var handler = new UploadHandler(req, res, function (result, redirect) {
-            if (redirect) {
+            if (callback) {
+                callback(req, res, result);
+            } else if (redirect) {
                 files = {files: result};
                 res.redirect(redirect.replace(/%s/, encodeURIComponent(JSON.stringify(files))));
             } else {