Major Description
We would like to enhance traffic_logstats with the ability to report stats per user instead of host (from the URI).
Currently the traffic_logstats expects a binary squid log format defined in the following ATS log config and aggregates and reports stats per the authority part of the URI (host:port in an usual use-case)
<Format = "%<cqtq> %<ttms> %<chi> %<crc>/%<pssc> %<psql> %<cqhm> %<cquc> %<caun> %<phr>/%<pqsn> %<psct>"/>
It would be useful for our use-case to be able aggregate and report stats based on the 8th squid log field which is an username of the authenticated client %<caun>).
In our use-case we need to aggregate and report stats per CDN-customer-specific-tag.
For example the new functionality would allow us to replace %caun with a random header content %<{@CustomerTagHeader}cqh> and report stats per CDN customer by using a new command line parameter --report_per_user w/o adding extra fields to the binary squid format log expected by traffic_logstats and keep it backward compatible with the previous version.
