Hello, I don't see any issue with the code you linked to. It's saying "if the ranger policies say the operation is allowed, then return approved".
Is '{USER}' a special syntax in Ranger? or are you using that as a placeholder in email so you don't have to provide the real user identity? I haven't seen that syntax before so just trying to understand what {USER} and {OWNER} mean here. -Bryan On Mon, Apr 9, 2018 at 3:55 AM, Meixner, Johannes <johan...@perceivon.net> wrote: > I'm trying to harden my NiFi instance's authorizations and auditing using > Ranger (which is backed by an LDAP instance). > > In Ranger I have defined a couple of resources defined to be authorized for > the nifi nodes' CNs (from SSL certs), `{USER}` and `{OWNER}`. > > Turns out that if I add `{USER}` to the resource containing "/flow" I can > read the flow as anonymous user, which is exactly the opposite of what I > want. > > Some digging last week lead me to believe that this is due to the way > RangerNiFiAuthorizer.java [1] does authorizations. Note, I could be on the > completely wrong track here. > > Is there any way to prevent `anonymous` from doing anything in NiFi, > through Ranger? > > Best regards > Johannes Meixner > > > [1] > https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-ranger-bundle/nifi-ranger-plugin/src/main/java/org/apache/nifi/ranger/authorization/RangerNiFiAuthorizer.java#L185-L188