Add packages API

app/views/utils.py

@@ -0,0 +1,9 @@
+from flask import request
+
+def isFilenameAllowed(filename, exts):
+	return "." in filename and \
+			filename.rsplit(".", 1)[1].lower() in exts
+
+def shouldReturnJson():
+	return "application/json" in request.accept_mimetypes and \
+			not "text/html" in request.accept_mimetypes