map depending on HTTP header

[Jon Fullmer]

(Sorry about the previous message)

Currently using TrafficServer 4.2.3 on CentOS (happy to upgrade, if later
versions provide the needed feature).

I want to be able to map the backend call based on the source IP address of
the caller and the contents of a custom HTTP header.

For example (the curly braces represent something that doesn’t exist):

regex_map http://(.*)/ http://
{client-ip-address}:{contents-of-custom-HTTP-header)/

Do such macros exist?

Thanks in advance.

 - Jon