Project - extract contents from emails

We need Ruby code (for RoR application) that would extract contents from incoming emails.

The incoming emails may be text or HTML formatted and may contain attachments.

This code should return a cleaned version of the incoming email that has only the text and the attachments as files.

Full project description here:
http://docs.google.com/View?id=dfvnf9gc_74hnwwghd6

Ruby
IMAP library