upload files through express instead of formidable directly

package.json

@@ -18,7 +18,6 @@
   },
   "dependencies": {
     "socket.io": "~0.9.10",
-    "formidable": "~1.0.11",
     "lastfm": "~0.8.1",
     "zipstream": "~0.2.1",
     "express": "~3.0.0rc5",

src/server/plugins/upload.co

@@ -1,6 +1,5 @@
 const
   Plugin = require('../plugin')
-  formidable = require 'formidable'
   mkdirp = require 'mkdirp'
   fs = require 'fs'
   path = require 'path'
@@ -9,6 +8,9 @@ const
   temp = require 'temp'
   mv = require 'mv'
   {getSuggestedPath} = require '../futils'
+  express = require 'express'
+
+multipart = express.multipart(keepExtensions: true)
 
 module.exports = class Upload extends Plugin
   (bus) ~>
@@ -91,16 +93,16 @@ module.exports = class Upload extends Plugin
             cb(err)
 
   setUpRoutes: !(app) ->
-    app.post '/upload', @checkEnabledMiddleware, !(request, response) ~>
-      logErr = !(err) ~> console.error "Unable to import by uploading. Error: #{err}"
-      logIfErr = !(err) ~> if err then logErr(err)
+    app.post '/upload', [@checkEnabledMiddleware, multipart], !(request, response) ~>
+      !~function logIfErr (err)
+        if err
+          console.error "Unable to import by uploading. Error: #{err}"
 
-      form = new formidable.IncomingForm()
-      form.parse request, !(err, fields, file) ~>
-        return logErr(err) if err
-        @importFile file.qqfile.path, file.qqfile.filename, logIfErr
+      for name, file in request.files
+        @importFile file.path, file.name, logIfErr
 
-      response.writeHead 200, {'content-type': 'text/html'}
+      response.statusCode = 200
+      response.setHeader 'content-type', 'application/json'
       response.end JSON.stringify {success: true}
 
   onSendStatus: !(status) ->