Created
November 29, 2019 12:34
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varnishtest ESI | |
server s1 { | |
rxreq | |
txresp -body { | |
<html> | |
Before include | |
<!--esi <esi:include src=""/> --> | |
After include | |
} | |
rxreq | |
txresp -body { | |
Included file | |
} | |
} -start | |
varnish v1 -arg "-p feature=+esi_disable_xml_check" -vcl { | |
# add our backend, and override the default backend in v_b_f | |
backend s1 { .host = "${s1_addr}"; .port = "${s1_port}"; } | |
// 1st step | |
sub vcl_recv { | |
unset req.http.x-jsonp-callback; | |
// 2nd step | |
if (req.url ~ "callback") { | |
set req.http.x-esi-origin-url = req.url; | |
// Replace the callback with our ESI template | |
set req.url = "/esi/jsonp-callback"; | |
return(hash); | |
} | |
// 4th step | |
if (req.url == "/esi/jsonp-callback") { | |
set req.http.x-jsonp-callback = req.http.x-esi-origin-url + "test"; | |
// 5th step | |
// Create the synthetic response | |
return(synth(900, "JSONP ESI")); | |
} | |
} | |
// 6th step | |
sub vcl_synth { | |
if (resp.status == 900) { | |
// We add an empty comment at the start in order to | |
// protect against content sniffing attacks. | |
// See https://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/ | |
synthetic("/**/ " + req.http.x-jsonp-callback); | |
return (deliver); | |
} | |
} | |
sub vcl_backend_fetch { | |
set bereq.backend = s1; | |
} | |
sub vcl_backend_response { | |
set beresp.do_esi=true; | |
set beresp.ttl = 30s; | |
} | |
} -start | |
client c1 { | |
txreq -url "/callback" | |
rxresp | |
} -run |
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