Infrae is pleased to announce the first public release of Silva Forum,
an extension for Silva 2.x that provides a classic discussion forum
environment. It can be integrated with OpenID authentication and a
CAPTCHA to prevent ‘spambots’ from attempting to post.

Sponsored by the Bijvoet Center for Bioinformatics, Silva Forum was
developed as a collaboration tool for scientists working on the
EU-funded project GlycoGold (MRTN-CT2005-05645).
Silva Forum features

Silva Forum allows site visitors to create topics (subjects or
questions) and add comments to existing topics. Entries are ordered
chronologically and displayed on multiple pages for extended
conversations. Users can preview their posting, and a clickable
interface for inserting emoticons in messages is provided.

In a typical setup the public can see and navigate the forum pages. Or,
a forum can be configured to be viewable only by authenticated users
with Silva’s Access Restrictions. If the forum should be private, a
public role can be set as well, limiting access to a select group.

Regardless of whether the forum is open to the public or not, in order
to post a visitor must authenticate. Authentication can be with various
Zope-based approaches or with OpenID.

OpenID-based authentication

The OpenID authentication is completely separate from Silva Forum, but
was developed for use with it. Offering an OpenID login provides a big
advantage: site managers don’t need to assign roles (or be involved in
any way) with forum users. Should any script kiddies try to abuse the
OpenID registration, a CAPTCHA will prevent scripts from registering.

The OpenID-based access is controlled by PAS (Pluggable Authentication
Service) and requires installation of PAS itself and Silva integration
components. These are available as an ‘egg’:

The OpenID integration with Silva was sponsored by Marc Petitmermet
(who’s at the Department of Materials at ETH Zürich, but it was funded
from another source).

Note that Silva’s OpenID plugin can be used for any Silva authentication
requirement, not just Silva Forum.

Demo site

You can give Silva Forum and the OpenID integration a test drive on a
test server:

If you’re not familiar with OpenID see: If you just
want to get an OpenID, go to However, you may
already have an OpenID. If you use any of the following services you
already have your own OpenID: AOL, Blogger, Flickr, LiveJournal,
Technorati, Yahoo, WordPress, and many more. For more information....

If you find a bug or have an idea for a feature, please post it on the
Silva bug tracker on Launchpad:


Silva Forum can be downloaded from:

Silva Forum will work fine without PAS and OpenID using standard


Many thanks to the people at the Bijvoet Center for Bioinformatics and
Marc Petitmermet at ETH Zürich for making this functionality possible.


FMI contact Todd Matsumoto, info at infrae com, +31 10 243 7051.

Kit BLAKE · Infrae · + 31 10 243 7051
Hoevestraat 10 · 3033 GC · Rotterdam + The Netherlands
OpenPGP 0xE67AD0F2 · Contact =

Zope-Announce maillist  -

 Zope-Announce for Announcements only - no discussions

(Related lists - Users:
Developers: )

Reply via email to