haproxy/reg-tests/cache/vary.vtc
Remi Tricot-Le Breton a5e96425a2 MEDIUM: cache: Add "Origin" header to secondary cache key
This patch add a hash of the Origin header to the cache's secondary key.
This enables to manage store responses that have a "Vary: Origin" header
in the cache when vary is enabled.
This cannot be considered as a means to manage CORS requests though, it
only processes the Origin header and hashes the presented value without
any form of URI normalization.

This need was expressed by Philipp Hossner in GitHub issue #251.

Co-Authored-by: Philipp Hossner <philipp.hossner@posteo.de>
2023-10-05 10:53:54 +02:00

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varnishtest "Vary support"
#REQUIRE_VERSION=2.4
feature ignore_unknown_macro
server s1 {
# Response varying on "accept-encoding" with
# an unacceptable content-encoding
rxreq
expect req.url == "/accept-encoding"
txresp -hdr "Content-Encoding: gzip" \
-hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 45
# Response varying on "accept-encoding"
rxreq
expect req.url == "/accept-encoding"
txresp -hdr "Content-Encoding: gzip" \
-hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 45
# Response varying on "accept-encoding" with
# no content-encoding
rxreq
expect req.url == "/accept-encoding"
txresp -hdr "Content-Type: text/plain" \
-hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 48
# Response varying on "accept-encoding" but having two different encodings
rxreq
expect req.url == "/accept-encoding-multiple"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 51
# Unmanaged vary
rxreq
expect req.url == "/unmanaged"
txresp -hdr "Vary: accept-encoding,unmanaged" \
-hdr "Cache-Control: max-age=5" \
-bodylen 51
rxreq
expect req.url == "/unmanaged"
txresp -hdr "Vary: accept-encoding,unmanaged" \
-hdr "Cache-Control: max-age=5" \
-bodylen 51
# Mixed Vary (Accept-Encoding + Referer)
rxreq
expect req.url == "/referer-accept-encoding"
txresp -hdr "Vary: accept-encoding,referer" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 51
rxreq
expect req.url == "/referer-accept-encoding"
txresp -hdr "Vary: referer,accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: br" \
-bodylen 54
rxreq
expect req.url == "/referer-accept-encoding"
txresp -hdr "Vary: referer,accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 57
rxreq
expect req.url == "/origin-referer-accept-encoding"
txresp -hdr "Vary: origin,referer,accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 58
rxreq
expect req.url == "/origin-referer-accept-encoding"
txresp -hdr "Vary: origin,referer,accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 59
# Multiple Accept-Encoding headers
rxreq
expect req.url == "/multiple_headers"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: br" \
-bodylen 155
rxreq
expect req.url == "/multiple_headers"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: br" \
-bodylen 166
# Too many Accept-Encoding values (we will not cache responses with more than 16 encodings)
rxreq
expect req.url == "/too_many_encodings"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 177
rxreq
expect req.url == "/too_many_encodings"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-hdr "Content-Encoding: gzip" \
-bodylen 188
rxreq
expect req.url == "/empty-vs-missing"
txresp -hdr "Content-Encoding: gzip" \
-hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 234
rxreq
expect req.url == "/empty-vs-missing"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 256
} -start
server s2 {
# Responses that should not be cached
rxreq
expect req.url == "/no_vary_support"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 57
rxreq
expect req.url == "/no_vary_support"
txresp -hdr "Vary: accept-encoding" \
-hdr "Cache-Control: max-age=5" \
-bodylen 57
} -start
haproxy h1 -conf {
global
# WT: limit false-positives causing "HTTP header incomplete" due to
# idle server connections being randomly used and randomly expiring
# under us.
tune.idle-pool.shared off
defaults
mode http
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
frontend fe
bind "fd@${fe}"
use_backend no_vary_be if { path_beg /no_vary_support }
default_backend test
backend test
http-request cache-use my_cache
server www ${s1_addr}:${s1_port}
http-response cache-store my_cache
http-response set-header X-Cache-Hit %[res.cache_hit]
backend no_vary_be
http-request cache-use no_vary_cache
server www ${s2_addr}:${s2_port}
http-response cache-store no_vary_cache
http-response set-header X-Cache-Hit %[res.cache_hit]
cache my_cache
total-max-size 3
max-age 20
max-object-size 3072
process-vary on
cache no_vary_cache
total-max-size 3
max-age 20
max-object-size 3072
process-vary off
} -start
client c1 -connect ${h1_fe_sock} {
# Accept-Encoding Vary
txreq -url "/accept-encoding" -hdr "Accept-Encoding: first_value"
rxresp
expect resp.status == 200
expect resp.http.content-encoding == "gzip"
expect resp.bodylen == 45
# The response for the first request had an unacceptable `content-encoding`
# which might happen if that's the only thing the server supports, but
# we must not cache that and instead defer to the server.
txreq -url "/accept-encoding" -hdr "Accept-Encoding: first_value"
rxresp
expect resp.status == 200
expect resp.http.content-encoding == "gzip"
expect resp.bodylen == 45
expect resp.http.X-Cache-Hit == 0
txreq -url "/accept-encoding" -hdr "Accept-Encoding: second_value"
rxresp
expect resp.status == 200
expect resp.bodylen == 48
expect resp.http.content-type == "text/plain"
expect resp.http.X-Cache-Hit == 0
# This request matches the cache entry for the request above, despite
# matching the `accept-encoding` of the first request because the
# request above only has the `identity` encoding which is implicitly
# added, unless explicitly forbidden.
txreq -url "/accept-encoding" -hdr "Accept-Encoding: first_value"
rxresp
expect resp.status == 200
expect resp.bodylen == 48
expect resp.http.content-type == "text/plain"
expect resp.http.X-Cache-Hit == 1
txreq -url "/accept-encoding" -hdr "Accept-Encoding: second_value"
rxresp
expect resp.status == 200
expect resp.bodylen == 48
expect resp.http.content-type == "text/plain"
expect resp.http.X-Cache-Hit == 1
# The accept-encoding normalizer function converts the header values
# to lower case then calculates the hash of every sub part before
# sorting the hashes and xor'ing them (while removing duplicates).
txreq -url "/accept-encoding-multiple" -hdr "Accept-Encoding: first,second"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 0
txreq -url "/accept-encoding-multiple" -hdr "Accept-Encoding: first,second"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 1
txreq -url "/accept-encoding-multiple" -hdr "Accept-Encoding: second,first"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 1
txreq -url "/accept-encoding-multiple" -hdr "Accept-Encoding: FirsT,SECOND,first"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 1
# Unmanaged vary
txreq -url "/unmanaged" -hdr "Accept-Encoding: first_value"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 0
txreq -url "/unmanaged" -hdr "Accept-Encoding: first_value"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 0
# Mixed Vary (Accept-Encoding + Referer)
txreq -url "/referer-accept-encoding" \
-hdr "Accept-Encoding: br, gzip" \
-hdr "Referer: referer"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 0
txreq -url "/referer-accept-encoding" \
-hdr "Accept-Encoding: br" \
-hdr "Referer: other-referer"
rxresp
expect resp.status == 200
expect resp.bodylen == 54
expect resp.http.X-Cache-Hit == 0
txreq -url "/referer-accept-encoding" \
-hdr "Accept-Encoding: gzip" \
-hdr "Referer: other-referer"
rxresp
expect resp.status == 200
expect resp.bodylen == 57
expect resp.http.X-Cache-Hit == 0
txreq -url "/referer-accept-encoding" \
-hdr "Referer: referer" \
-hdr "Accept-Encoding: gzip, br"
rxresp
expect resp.status == 200
expect resp.bodylen == 51
expect resp.http.X-Cache-Hit == 1
txreq -url "/referer-accept-encoding" \
-hdr "Accept-Encoding: br" \
-hdr "Referer: other-referer"
rxresp
expect resp.status == 200
expect resp.bodylen == 54
expect resp.http.X-Cache-Hit == 1
txreq -url "/referer-accept-encoding" \
-hdr "Accept-Encoding: gzip" \
-hdr "Referer: other-referer"
rxresp
expect resp.status == 200
expect resp.bodylen == 57
expect resp.http.X-Cache-Hit == 1
# Mixed Vary (Accept-Encoding + Referer + Origin)
txreq -url "/origin-referer-accept-encoding" \
-hdr "Accept-Encoding: br, gzip" \
-hdr "Referer: referer" \
-hdr "Origin: origin"
rxresp
expect resp.status == 200
expect resp.bodylen == 58
expect resp.http.X-Cache-Hit == 0
txreq -url "/origin-referer-accept-encoding" \
-hdr "Accept-Encoding: br, gzip" \
-hdr "Referer: referer" \
-hdr "Origin: origin"
rxresp
expect resp.status == 200
expect resp.bodylen == 58
expect resp.http.X-Cache-Hit == 1
txreq -url "/origin-referer-accept-encoding" \
-hdr "Accept-Encoding: br, gzip" \
-hdr "Referer: referer" \
-hdr "Origin: other-origin"
rxresp
expect resp.status == 200
expect resp.bodylen == 59
expect resp.http.X-Cache-Hit == 0
txreq -url "/origin-referer-accept-encoding" \
-hdr "Accept-Encoding: br, gzip" \
-hdr "Referer: referer" \
-hdr "Origin: other-origin"
rxresp
expect resp.status == 200
expect resp.bodylen == 59
expect resp.http.X-Cache-Hit == 1
# Multiple Accept-encoding headers
txreq -url "/multiple_headers" \
-hdr "Accept-Encoding: gzip" \
-hdr "Accept-Encoding: br, deflate"
rxresp
expect resp.status == 200
expect resp.bodylen == 155
expect resp.http.X-Cache-Hit == 0
txreq -url "/multiple_headers" \
-hdr "Accept-Encoding: deflate" \
-hdr "Accept-Encoding: br,gzip"
rxresp
expect resp.status == 200
expect resp.bodylen == 155
expect resp.http.X-Cache-Hit == 1
# Should not match a cache entry
txreq -url "/multiple_headers" \
-hdr "Accept-Encoding: first_encoding"
rxresp
expect resp.status == 200
expect resp.bodylen == 166
expect resp.http.X-Cache-Hit == 0
# Too many accept encodings
txreq -url "/too_many_encodings" \
-hdr "Accept-Encoding: a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16,a17"
rxresp
expect resp.status == 200
expect resp.bodylen == 177
expect resp.http.X-Cache-Hit == 0
txreq -url "/too_many_encodings" \
-hdr "Accept-Encoding: a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16,a17"
rxresp
expect resp.status == 200
expect resp.bodylen == 188
expect resp.http.X-Cache-Hit == 0
# A missing 'Accept-Encoding' implies that anything is acceptable,
# while an empty 'Accept-Encoding' implies nothing is acceptable.
# Start by caching a gzip response.
txreq -url "/empty-vs-missing" -hdr "Accept-Encoding: gzip"
rxresp
expect resp.status == 200
expect resp.bodylen == 234
expect resp.http.content-encoding == "gzip"
expect resp.http.X-Cache-Hit == 0
# Check that it is cached.
txreq -url "/empty-vs-missing" -hdr "Accept-Encoding: gzip"
rxresp
expect resp.status == 200
expect resp.bodylen == 234
expect resp.http.content-encoding == "gzip"
expect resp.http.X-Cache-Hit == 1
# Check that the cached response is returned when no accept-encoding is
# specified.
txreq -url "/empty-vs-missing"
rxresp
expect resp.status == 200
expect resp.bodylen == 234
expect resp.http.content-encoding == "gzip"
expect resp.http.X-Cache-Hit == 1
# Check that the cached response is not returned when an empty
# accept-encoding is specified.
txreq -url "/empty-vs-missing" -hdr "Accept-Encoding:"
rxresp
expect resp.status == 200
expect resp.bodylen == 256
expect resp.http.content-encoding == "<undef>"
expect resp.http.X-Cache-Hit == 0
# The following requests are treated by a backend that does not cache
# responses containing a Vary header
txreq -url "/no_vary_support"
rxresp
expect resp.status == 200
expect resp.bodylen == 57
expect resp.http.X-Cache-Hit == 0
txreq -url "/no_vary_support"
rxresp
expect resp.status == 200
expect resp.bodylen == 57
expect resp.http.X-Cache-Hit == 0
} -run