ReferrerFilter should not reverse lookup the IPs of interfaces
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Key: SLING-2279
URL: https://issues.apache.org/jira/browse/SLING-2279
Project: Sling
Issue Type: Improvement
Components: Extensions
Environment: contrib / extensions /
org.apache.sling.security-0.5.0-SNAPSHOT.jar
Reporter: Tobias Bocanegra
Attachments: referrer-r1200559.patch
The o.a.s.security.impl.ReferrerFilter initializes the
getDefaultAllowedReferrers() with the hostnames of the local interfaces. I
doubt that this has any meaning in a productive environment, as the server most
probably runs behind a loadbalancer or proxy. the problem with this
initialization is that it might result in a reverse DNS lookup, which can be
very slow.
suggest to remove the hostnames from the default referrers:
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