move everything to backend folder for migration to dashboard repository

backend/helpers/classes.py

@@ -0,0 +1,17 @@
+
+"""Generic classes used by different parts of the application"""
+
+import urllib.request
+
+# Instead of processing the redirect, we return, so the application
+# can handle the redirect itself. This is needed to extract cookies
+# etc.
+class RedirectFilter(urllib.request.HTTPRedirectHandler):
+    """Overrides the standard redirect handler so it does not automatically
+    redirect. This allows for inspecting the return values before redirecting or
+    override the redirect action"""
+
+    # pylint: disable=too-many-arguments
+    # This amount of arguments is expected by the HTTPRedirectHandler
+    def redirect_request(self, req, fp, code, msg, headers, newurl):
+        return None