Hi devs,

We have a new (component based) authorization module since a while now, and
I think 5.0 is the perfect time to introduce it as the default right
service. First, I simply propose to change the default in xwiki.cfg:

xwiki.authentication.rightsclass=org.xwiki.security.authorization.internal.XWikiCachingRightService

(Later, I propose that we deprecate that bridge and that we create a
friendly (xwiki oriented) interface over the more generic
org.xwiki.security.authorization.AuthorizationManager. But leave this for a
later proposal.)

So this vote is about changing the default in xwiki.cfg before 5.0M2.

pros:
 - improved performance, since the new service is using caching techniques
and a single page load required lots of calls to it.
 - ability for extension to add new rights
 - define right declaratively
 - separate method for checking and verifying right (throws opposed to
boolean return)
 - fix some long waiting bugs like XWIKI-5174, XWIKI-6987, as well as some
unstated ones
 - possibility to easily solve issues like XWIKI-4491
 - no more admin right per default
 - being in good position to improve it and release dependencies to oldcore
for security matters.
 - possibility for third party to adapt the right settler to their special
needs (right decision is plugable)
 - a consistant right evaluation with very few exception that could be
explained and documented

cons:
 - no more admin right per default, but since we have DW, the initial setup
is no more a problem, and advanced users may use superadmin.
 - groups are only checked from the user wiki, not from the accessed entity
wiki.
 - may exhibit some other minor differences compare to existing
implementation (but mostly consistency fixes)
 - test could be improved, critical part (right, settler, data structure,
cache) are covered at almost 100%, api at 60%, this is probably better than
the old right service
 - documentation should be improved, but this is not worse than the old one
anyway

Since I use the new module in all my production servers for several months
with success, and I really think that if we do not do it now we will never
go ahead, here is my big +1

WDYT ?

-- 
Denis Gervalle
SOFTEC sa - CEO
eGuilde sarl - CTO
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