This plugin allows admin users (with TRAC_ADMIN permission) to define server-side redirects in Trac admin interface. It supports regex matching and replacing.
After installation a new panel Redirects appears in Trac web admin interface.
Please use Bitbucket for any issues you have with RedirectsPlugin.
Download the zipped source from here.
You can clone RedirectsPlugin from here using Mercurial, or browse the source on Bitbucket.
Please follow documentation on how to install Trac's plugins.