Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread Daniel Florey
This should be discussed at the webdav mailinglist directly as it is of interest for all other WebDAV-server vendors. I'd encourage everyone to join the w3c-dist-auth at w3.org mailing list. Cheers, Daniel Slide Users Mailing List slide-user@jakarta.apache.org schrieb am 13.01.05 04:02:17:

RE: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread Nick Longinow
circumstances... Anyhow, at least I know now how to proceed. thanks again Nick -Original Message- From: Oliver Zeigermann [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 12, 2005 2:09 PM To: Slide Users Mailing List Subject: Re: Question - is ACL negotiation unchangeable w/ competing

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread Oliver Zeigermann
negotiation unchangeable w/ competing rights ? I read the spec at http://www.greenbytes.de/tech/webdav/rfc3744.html#acl.evaluation such that the order is important and not strictness. Slide code says the same. Oliver On Wed, 12 Jan 2005 13:15:16 -0500, Nick Longinow [EMAIL PROTECTED

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread Michael Smith
Nick Longinow wrote: Thanks all for replies. This basically means that if a principal has read access in one group and read-write in another, then if the read group comes first, then when a webdav request is made to edit the document, the resource will be streamed to the user in read-only mode.

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread James Mason
On Fri, 2005-01-14 at 10:11 +1100, Michael Smith wrote: ... snip ... Now, a client can _also_ use a request for the acl property on a resource to figure out what permissions the user has. So it's possible (though somewhat tricky) to figure out whether the user would be able to write the

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread James Mason
From a security standpoint the concept of an all-powerful admin is a bad thing. The new ACL-type implementations I've seen seem to moving to a more localized security policy where it's easier to control who has access to a resource and it's easier to contain a security breach (since no one account

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-13 Thread Carlos Villegas
Well I wasn't meaning having an all-powerful admin, let's change in my example, full access to write access. We still have the issue that denying write access to another group which that particular user happens to belong to, will deny the user write access even if belongs to a group that

Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-12 Thread Nick Longinow
Hi If a resource (document) in Slide has an ACL with multiple entries for the same principal, the spec (as I recall it) says that the lesser permission is applied to requests. ie, if user has read-only access as a member of one group, and read-write as a member of another group, both of which are

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-12 Thread Oliver Zeigermann
I read the spec at http://www.greenbytes.de/tech/webdav/rfc3744.html#acl.evaluation such that the order is important and not strictness. Slide code says the same. Oliver On Wed, 12 Jan 2005 13:15:16 -0500, Nick Longinow [EMAIL PROTECTED] wrote: Hi If a resource (document) in Slide has an ACL

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-12 Thread Michael Smith
Nick Longinow wrote: Hi If a resource (document) in Slide has an ACL with multiple entries for the same principal, the spec (as I recall it) says that the lesser permission is applied to requests. ie, if user has read-only access as a member of one group, and read-write as a member of another

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-12 Thread Michael Smith
Michael Oliver wrote: Michael, this is EXCELLENT and a very good thing to go into the Wiki...please! I would but you should get the credit. Ok. I've put it on the (more-or-less empty, previously) Security page. Feel free to edit it however you want. Mike

Re: Question - is ACL negotiation unchangeable w/ competing rights ?

2005-01-12 Thread Carlos Villegas
This is ok, but the issue is that when checking the ACL for a user belonging to several groups, the first one that explicitly grants/denies access is the one that takes effect. This sounds right but sometimes is not what you expect. For example, you have an admin group that you've given full