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Re: Help with ACL's
> On 04.06.2009 14:24, Tyler Gates wrote:
> >> Tyler Gates wrote:
> >>> Hello,
> >>> I'm having a hard time setting some ACL's for my particular setup. I
> >>> have a structure as follows: dn: uid=*,ou=people,dc=example,dc=com #
> >>> uid contains several unix/linux user ids dn:
> >>> cn=*,ou=groups,dc=example,dc=com # cn contains several unix/linux
> >>> groups. uid's (not the complete dn) are supplied to the memberUid fields
> >>>
> >>> What I would like to do is place an organizationalRole in each group
> >>> and have ACL's setup so that it's uniqueMembers have access to certain
> >>> attrs (say for example sn) for the uid's (which correspond to those in
> >>> ou=people) specified in the memberUid fields of the group in which the
> >>> organizationalRole is placed.
> >>>
> >>> psuedo code would be something as follows:
> >>>
> >>> access to
> >>> group/posixAccount/memberUid.regex("cn=(.*),ou=groups,dc=example,dc=com")
> >>> attrs sn by
> >>> group/organizationalRole/uniqueMembers/.regex("cn=admin,cn=$1,ou=groups,dc=example,dc=com")
> >>> write
> >>>
> >>> Thanks,
> >>> Tyler
> >>>
> >>
> >> Hi,
> >>
> >> you can use sets for this:
> >>
> >> access to dn.regex="^(cn=[^,]+,ou=groups,dc=example,dc=com)$"
> >> attrs="sn"
> >> by set.expand="[cn=admin,$1]/memberUid& user/uid" write
> >>
> >>
> >> Regards,
> >> Christian
> >>
> >
> >
> > Hi Christian,
> > I think I get the set's but that ACL doesn't work, and I'm not sure
> > if regex's or set's will even do the job. A conditional statement if
> > possible may be the only way. Again I'm looking for members of an
> > organizational role
> > (cn=admin,cn=groupname,ou=group,dc=example,dc=com) placed in a group
> > (cn=groupname,ou=group,dc=example,dc=com) to be able to access ONLY the
> > people listed in that group
> > (group/OrganizationalRole/memberUid((cn=groupname,ou=group,dc=example,dc=com))
> > and nobody else. The people listed in that group are the memberUid and
> > should match up to the complete dn as defined in
> > uid=<memberUid>,ou=people,dc=example,dc=com.
>
> Hi,
>
> You can use ACL sets to do this, as follows. I have adapted the example
> to use organizationalRole's roleOccupant attribute, instead of memberUid.
>
> access to dn.children="ou=people,dc=my-domain,dc=com" attrs=sn,entry
> by
> set="((([ldap:///ou=group,dc=my-domain,dc=com??sub?(&(objectclass=organizationalRole)(cn=admin)(roleOccupant=]
> + user/entryDN + [))])/entryDN)/-1)/memberUid & this/uid" read
>
> Quick description:
> 1) Find all entries under "ou=group,dc=my-domain,dc=com" that match the
> filter
> "(&(objectclass=organizationalRole)(cn=admin)(roleOccupant=<current
> user's DN>", and get their DN ("/entryDN") - this is all the admin
> groups the current user is a member of.
> 2) For each of them, go up one level ("/-1"), thus getting the group
> that they are an admin of.
> 3) Get the memberUid attributes of this group ("/memberUid")
> 4) Match them with the uid of the object we're trying to read.
>
> See http://www.openldap.org/faq/data/cache/1133.html for more info on
> sets syntax.
>
> Of course, for this to work, you must allow auth access to the admin
> user accounts, and search access to objects in ou=People.
>
> Regards,
> Jonathan
> --
> --------------------------------------------------------------
> Jonathan Clarke - jonathan@phillipoux.net
> --------------------------------------------------------------
> Ldap Synchronization Connector (LSC) - http://lsc-project.org
> --------------------------------------------------------------
>
Holy hell, that works perfect! Thanks so much Jonathan!
But could you help me understand a portion of it a little better?
+ user/entryDN + [))])/entryDN)
The way I'm reading the set, that particular chunk seems unneeded
because the dn should already be expanded and ready for memberUid to be
stripped out by the remaining chunk.
Does it mean process each roleOccupant? And Why the '[))]'.
Thanks again Jonathan
Tyler