Is Habrahabr source code available and distributed under GPL2?

Of course, there is no direct evidence and probably will not, but there are many indirect signs confirming the theory that the Habr code is based on the Open Social Networks Constructor , an open project distributed under the GPL2 license.
For example:
- /usr/home/sites/superhabr.ru/www/init_servers.php
-
- ur001
- and many others that you can find in the source code of the project

The reason was Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting ')' in / usr / home / sites / superperr.