Angela Schreiber created SLING-8757:
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             Summary: Add option to set/edit access control policies at user 
homes
                 Key: SLING-8757
                 URL: https://issues.apache.org/jira/browse/SLING-8757
             Project: Sling
          Issue Type: Improvement
          Components: Repoinit
            Reporter: Angela Schreiber


[~rombert], while looking into moving all service user creation and permission 
setup from content packages to repo init, i noticed that there is one special 
case that doesn't seem to be covered by repo init but possible with Jackrabbit 
content packages: creating/editing access control policies at a user home. the 
path of those is an implementation detail and cannot be 'guessed'.

based on my previous work on the repo-init grammar, i could envision the 
following main options to include this functionality.

# explicitly extend the 'path-token' which is currently defined to be 
{{PATH_STRING> | t = <PATH_REPOSITORY>}} to something like {{PATH_STRING> | t = 
<PATH_REPOSITORY> || <USER_ID>}}.
# similar to the first one: but don't touch the grammar just extend the 
jcr-implementation: if 'path' is a relative path and is not _repository_, treat 
it as userId and try to obtain a path from the corresponding user object.
# completely separate it from the 'pathList' and don't allow a combination of 
absolute paths, repository-marker and userIds, explicitly include the notion 
that the edited policy is not bound to a regular path but to a user home.... 
instead of {{on /abspath, repository}} it then would e.g. say {{on user id1, 
id2}}

without having looked into it in great detail and given the fact that there are 
already so many different ways to edit access control content with repo-init, 
the first option would feel the most natural to me. 

wdyt? i could try to come up with a patch/tests/docu, but i would love to avoid 
investing a lot of time and then have to throw it away or redo it all over 
again.



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