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vcl: Introduce new obj_stale variable
obj_stale variable gives access to the stale object we had in cache when doing a 304 revalidation. It is only readable from vcl_backend_refresh subroutine.
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Original file line number | Diff line number | Diff line change |
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varnishtest "Test obj_stale vcl variables" | ||
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server s1 { | ||
rxreq | ||
txresp -hdr "Etag: abcd" -hdr "from-bo: true" -bodylen 10 | ||
rxreq | ||
expect req.http.if-none-match == "abcd" | ||
txresp -status 304 | ||
} -start | ||
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varnish v1 -vcl+backend { | ||
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sub vcl_backend_response { | ||
set beresp.http.vbresp = "true"; | ||
set beresp.ttl = 0.01s; | ||
set beresp.grace = 0s; | ||
set beresp.keep = 10m; | ||
set beresp.http.was-304 = beresp.was_304; | ||
} | ||
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sub vcl_backend_refresh { | ||
set beresp.http.vbref = "true"; | ||
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set beresp.http.http = obj_stale.http.from-bo; | ||
set beresp.http.age = obj_stale.age; | ||
set beresp.http.can_esi = obj_stale.can_esi; | ||
set beresp.http.grace = obj_stale.grace; | ||
set beresp.http.hits = obj_stale.hits; | ||
set beresp.http.keep = obj_stale.keep; | ||
set beresp.http.proto = obj_stale.proto; | ||
set beresp.http.reason = obj_stale.reason; | ||
set beresp.http.status = obj_stale.status; | ||
set beresp.http.storage = obj_stale.storage; | ||
set beresp.http.time = obj_stale.time; | ||
set beresp.http.ttl = obj_stale.ttl; | ||
set beresp.http.uncacheable = obj_stale.uncacheable; | ||
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return (merge); | ||
} | ||
} -start | ||
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client c1 { | ||
txreq | ||
rxresp | ||
expect resp.status == 200 | ||
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expect resp.http.was-304 == false | ||
expect resp.http.vbref == <undef> | ||
expect resp.http.vbresp == true | ||
expect resp.http.from-bo == true | ||
} -run | ||
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delay 0.01 | ||
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client c2 { | ||
txreq | ||
rxresp | ||
expect resp.status == 200 | ||
expect resp.http.was-304 == true | ||
expect resp.http.vbresp == true | ||
expect resp.http.vbref == true | ||
expect resp.http.from-bo == true | ||
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expect resp.http.http == true | ||
expect resp.http.age == 0 | ||
expect resp.http.can_esi == false | ||
expect resp.http.grace == 0.000 | ||
expect resp.http.hits == 0 | ||
expect resp.http.keep == 600.000 | ||
expect resp.http.proto == HTTP/1.1 | ||
expect resp.http.reason == OK | ||
expect resp.http.status == 200 | ||
expect resp.http.storage == storage.s0 | ||
expect resp.http.time != <undef> | ||
expect resp.http.ttl != <undef> | ||
expect resp.http.uncacheable == false | ||
} -run |
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