>> I want to keep objects like media (avi|jpg|mp3) for 7 days in cache while
>> telling the client "max-age=3d", keep office file for 3
>>days in cache while telling the client 1 day (using ATS 4.1.2 TTL are in
>>seconds)
>
>I think you are overcomplicating things a bit though, use the protocol :).
>http://tools.ietf.org/html/rfc7234#section-5.2.2.9, e.g.
>
> Cache-Control: max-age=259200, s-maxage=604800
>
>This would be so easy if you could just configure your origin servers to
>behave and send the above. Barring that, you could use
>header_rewrite to modify the origin server response to just that. I just
>cringe when people have to fight poorly configured origin
>servers, this stuff belongs on the origin, and not on the caches.
Leif,
thanks for the reminder but I don't really have this choice by now.
Still trying to use regex_map with header_rewrite plugin with
cond %{SEND_RESPONSE_HDR_HOOK}
cond %{PATH} "/(avi|mp3|jpg)$/"
rm-header Cache-Control
add-header Cache-Control max-age=3d
cond %{PATH} "/(doc|xls|ppt)$/"
rm-header Cache-Control
add-header Cache-Control max-age=1d
I got this diag which shows only second %{PATH} condition is tested but also
ending with a strange message "PATH requires remap initialization! Evaluating
to false!". Even with a file named test.doc, no header rewrite action is done :
(header_rewrite) activated transaction hook via remap.config: new hook=5
(header_rewrite_dbg) Calling CTOR for Resources (RemapAPI)
(header_rewrite) rri: 0x7fffffffb8e0
(header_rewrite) Building resource structure for hook (17)
(header_rewrite) Adding TXN client request header buffers
(header_rewrite) Adding TXN client request header buffers for remap
instance
(header_rewrite) Appending PATH to evaluation value: test.avi
(header_rewrite) Evaluating PATH
(header_rewrite) Test regular expression (doc|xls|ppt)$ : test.avi
(header_rewrite) returing with status: 0
(header_rewrite_dbg) Calling CTOR for Resources (InkAPI)
(header_rewrite) Building resource structure for hook (5)
(header_rewrite) Adding TXN client request header buffers
(header_rewrite) Adding TXN client response header buffers
(header_rewrite) PATH requires remap initialization! Evaluating to false!
(header_rewrite) activated transaction hook via remap.config: new hook=5
(header_rewrite_dbg) Calling CTOR for Resources (RemapAPI)
(header_rewrite) rri: 0x7fffff6f90b0
(header_rewrite) Building resource structure for hook (17)
(header_rewrite) Adding TXN client request header buffers
(header_rewrite) Adding TXN client request header buffers for remap
instance
(header_rewrite) Appending PATH to evaluation value: test.doc
(header_rewrite) Evaluating PATH
(header_rewrite) Test regular expression (doc|xls|ppt)$ : test.doc
(header_rewrite) Successfully found regular expression match
(header_rewrite) OperatorRMHeader::exec() invoked on header Cache-Control
(header_rewrite) OperatorAddHeader::exec() invoked on header Cache-Control:
max-age=1d
(header_rewrite) adding header Cache-Control
(header_rewrite) returing with status: 0
(header_rewrite_dbg) Calling CTOR for Resources (InkAPI)
(header_rewrite) Building resource structure for hook (5)
(header_rewrite) Adding TXN client request header buffers
(header_rewrite) Adding TXN client response header buffers
(header_rewrite) PATH requires remap initialization! Evaluating to false!
regards,
Denis
