refactored server

server/metadata.js

@@ -0,0 +1,13 @@
+class Metadata {
+  constructor(obj) {
+    this.dl = +obj.dl || 0;
+    this.dlimit = +obj.dlimit || 1;
+    this.pwd = String(obj.pwd) === 'true';
+    this.owner = obj.owner;
+    this.metadata = obj.metadata;
+    this.auth = obj.auth;
+    this.nonce = obj.nonce;
+  }
+}
+
+module.exports = Metadata;