Redmine_bots_filter is a project mainly written in Ruby, it's free.
Prevent common bots and web spiders from accessing parts of Redmine
= Redmine Bots Filter
Prevent common bots and web spiders from accessing parts of Redmine
== Features
Block bots from accessing pages in Redmine:
== Getting the plugin
A copy of the plugin can be downloaded from {Redmine}[http://www.redmine.org/wiki/redmine/PluginBotsFilter] or from {GitHub}[http://github.com/edavis10/redmine_bots_filter]
== Installation and Setup
== Usage
Optionally: configure the list of bots to block in Admin > Plugins > Redmine Bots Filter. Separate multiple bots by a new line or comma.
== License
This plugin is licensed under the GNU GPL v2. See COPYRIGHT.txt and GPL.txt for details.
== Project help
If you need help you can contact the maintainer at the Bug Tracker. The bug tracker is located at http://www.redmine.org