Hi,

I'm indecisive on this one.
On the one hand I think OpenCMIS should be vendor independent. Also, the OpenCMIS release cycle might not match the vendors release cycle. On the other hand it would be nice to provide out-of-box connectivity to as many repositories as possible.

How about keeping the code out of OpenCMIS but providing connection instructions for different repositories on the Chemistry website? The instructions could, of course, include links to additional jars that are required.

I agree with Jens that NTLM is different. It's an independent authentication protocol - even if it is only used by a few (well, one) vendor. If we find more of those, I think they belong into OpenCMIS. Digest authentication and SSL client certificates come to mind.


- Florian


On 08/02/2011 16:15, Florent Guillaume wrote:
Hi,

FWIW Nuxeo also has a very similar class for its own kinds of
tickets-based-on-simple-secrets:
http://hg.nuxeo.org/addons/nuxeo-chemistry/file/5.4/nuxeo-opencmis-impl/src/main/java/org/nuxeo/ecm/core/opencmis/impl/client/NuxeoPortalSSOAuthenticationProvider.java

There's no vendor-specific dependency in either case, so it's not a
problem having these classes in Chemistry, although in our case we
prefer distributing it with the rest of the Nuxeo libraries as the
semantics of the secret sharing and header use are really part of
Nuxeo.

Florent


On Tue, Feb 8, 2011 at 1:06 PM, Jens Hübel<[email protected]>  wrote:
Not sure that I have the full picture yet about the proposed enhancement, but 
in general I feel it would be better to provide a generic extension point in 
CMIS with the possibility to drop another Alfresco (or anybody else's) jar on 
the class path instead of adding dozens of vendor specific extensions to the 
Chemistry code bases over time.

Looking at the motivation mentioned in the issue tracker...

"The default authentication scheme supported by OpenCMIS is HTTP BASIC which is 
not
suitable for any serious deployment due to the fact that it sends userids and 
passwords in
the clear at each request

... well if there is anything better that makes sense we should talk about 
this, but securing a repository is a wider field than just avoiding sending 
passwords over the wire.

The NTLM authentication could be seen as another example of such an integration but for 
me this is on a different level of "vendor specific".

Just my thoughts I am open for discussion...

Jens


-----Original Message-----
From: Nick Burch [mailto:[email protected]]
Sent: Dienstag, 8. Februar 2011 00:21
To: [email protected]
Subject: Re: Product/vendor specific contributions to Chemistry

On Mon, 7 Feb 2011, Gabriele Columbro wrote:
this contribution to Alfresco [1] which also comprise a potential
contribution to OpenCMIS is triggering to ask me a more general question
on the list.

What is our (and ASF) position with respect to product specific
contributions? Meaning, do you see any "netiquette" or other issues in
committing this the OpenCMIS codebase?

My gut feeling is that if you can compile the code without needing any
Alfresco jars, and if it's a small-ish optional feature, then it probably
makes sense to have it in Chemistry so it's easy for people to use. We'd
just need to ensure there's always another way to do it though, so people
can code generically if they want to.

For code that requires Alfresco (or anyone else's) jars to compile
against, it'll almost certainly need to be a different module. If that is
hosted in Chemistry or outside will depend on both the license, and how
close a fit the community feels it is.

In this case, I seem to recall there's already an alternate authentication
provider for NTLM, so this would seem an OK addition for people who wanted
it, which others can ignore if they don't.

Nick





Reply via email to