initial commit

1 files changed, 47 insertions, 0 deletions

diff --git a/src/multipart.js b/src/multipart.js
new file mode 100644
index 0000000..7b994cc
--- /dev/null
+++ b/src/multipart.js
@@ -0,0 +1,47 @@
+/* jshint node:true */
+
+'use strict';
+
+var multiparty = require('multiparty'),
+    timeout = require('connect-timeout');
+
+function _mime(req) {
+  var str = req.headers['content-type'] || '';
+  return str.split(';')[0];
+}
+
+module.exports = function multipart(options) {
+    return function (req, res, next) {
+        if (_mime(req) !== 'multipart/form-data') return res.status(400).send('Invalid content-type. Expecting multipart');
+
+        var form = new multiparty.Form({
+            uploadDir: '/tmp',
+            keepExtensions: true,
+            maxFieldsSize: options.maxFieldsSize || (2 * 1024), // only field size, not files
+            limit: options.limit || '500mb', // file sizes
+            autoFiles: true
+        });
+
+        // increase timeout of file uploads by default to 3 mins
+        if (req.clearTimeout) req.clearTimeout(); // clear any previous installed timeout middleware
+
+        timeout(options.timeout || (3 * 60 * 1000))(req, res, function () {
+            req.fields = { };
+            req.files = { };
+
+            form.parse(req, function (err, fields, files) {
+                if (err) return res.status(400).send('Error parsing request');
+                next(null);
+            });
+
+            form.on('file', function (name, file) {
+                req.files[name] = file;
+            });
+
+            form.on('field', function (name, value) {
+                req.fields[name] = value; // otherwise fields.name is an array
+            });
+        });
+    };
+};
+