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+varnishtest "Check the Accept-Encoding processing implemented in the Vary mechanism"
+
+#REQUIRE_VERSION=2.4
+
+feature ignore_unknown_macro
+
+server s1 {
+ # Response varying on "accept-encoding" with a gzip 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" with a deflate content-encoding
+ rxreq
+ expect req.url == "/accept-encoding"
+ txresp -hdr "Content-Encoding: deflate" \
+ -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -bodylen 55
+
+
+ # Response varying on "accept-encoding" with no content-encoding (identity)
+ rxreq
+ expect req.url == "/accept-encoding-identity"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -bodylen 65
+
+ # Response varying on "accept-encoding" with refused identity encoding
+ rxreq
+ expect req.url == "/accept-encoding-identity"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: deflate" \
+ -bodylen 75
+
+
+ rxreq
+ expect req.url == "/accept-encoding-star"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: br" \
+ -bodylen 89
+
+ rxreq
+ expect req.url == "/accept-encoding-star"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: deflate" \
+ -bodylen 99
+
+
+ rxreq
+ expect req.url == "/multiple-content-encoding"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: deflate, gzip" \
+ -bodylen 109
+
+ rxreq
+ expect req.url == "/unknown-content-encoding"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: unknown_encoding" \
+ -bodylen 119
+
+ rxreq
+ expect req.url == "/unknown-content-encoding"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: unknown_encoding" \
+ -bodylen 119
+
+
+ rxreq
+ expect req.url == "/hash-collision"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: br" \
+ -bodylen 129
+
+ rxreq
+ expect req.url == "/hash-collision"
+ txresp -hdr "Vary: accept-encoding" \
+ -hdr "Cache-Control: max-age=5" \
+ -hdr "Content-Encoding: gzip" \
+ -bodylen 139
+} -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}"
+ 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]
+
+ cache my_cache
+ total-max-size 3
+ max-age 20
+ max-object-size 3072
+ process-vary on
+} -start
+
+
+client c1 -connect ${h1_fe_sock} {
+ #
+ # Accept-Encoding Vary
+ #
+
+ # First request
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+
+ # Regular case
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Regular case with upper case encoding
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: GZIP"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Multiple accepted encodings (all standard)
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: deflate,gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Multiple accept-encoding headers + non-standard accepted encodings
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: first_encoding,second_encoding" -hdr "Accept-Encoding: gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Regular case with positive weight
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: gzip;q=0.8"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Regular case with positive weight and extra whitespaces
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: gzip ; q=0.8"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 45
+ expect resp.http.X-Cache-Hit == 1
+
+ # Regular case with null weight
+ txreq -url "/accept-encoding" -hdr "Accept-Encoding: deflate;q=0.8, gzip;q=0"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "deflate"
+ expect resp.bodylen == 55
+ expect resp.http.X-Cache-Hit == 0
+
+
+ #
+ # Identity tests
+ #
+ txreq -url "/accept-encoding-identity"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "<undef>"
+ expect resp.bodylen == 65
+ expect resp.http.X-Cache-Hit == 0
+
+ # Regular case
+ txreq -url "/accept-encoding-identity"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "<undef>"
+ expect resp.bodylen == 65
+ expect resp.http.X-Cache-Hit == 1
+
+ # Identity is allowed by default even if another encoding is specified
+ txreq -url "/accept-encoding-identity" -hdr "Accept-Encoding: gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "<undef>"
+ expect resp.bodylen == 65
+ expect resp.http.X-Cache-Hit == 1
+
+ # Refused identity encoding (explicit null weight)
+ txreq -url "/accept-encoding-identity" -hdr "Accept-Encoding: deflate, identity;q=0"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "deflate"
+ expect resp.bodylen == 75
+ expect resp.http.X-Cache-Hit == 0
+
+
+ #
+ # Star tests
+ #
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: *"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 89
+ expect resp.http.X-Cache-Hit == 0
+
+ # Regular case
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: *"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 89
+ expect resp.http.X-Cache-Hit == 1
+
+ # Reject some encodings
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: gzip;q=0, deflate,*"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 89
+ expect resp.http.X-Cache-Hit == 1
+
+ # Weighted star
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: gzip;q=0, deflate,*;q=0.1"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 89
+ expect resp.http.X-Cache-Hit == 1
+
+ # Rejected identity
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: gzip;q=0, deflate,*;q=0.1,identity;q=0"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 89
+ expect resp.http.X-Cache-Hit == 1
+
+ # Rejected star and "br" not accepted
+ txreq -url "/accept-encoding-star" -hdr "Accept-Encoding: gzip;q=0, deflate,*;q=0"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "deflate"
+ expect resp.bodylen == 99
+ expect resp.http.X-Cache-Hit == 0
+
+
+ #
+ # Multiple content-encodings
+ #
+ txreq -url "/multiple-content-encoding" -hdr "Accept-Encoding: gzip;q=0.8, deflate"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "deflate, gzip"
+ expect resp.bodylen == 109
+ expect resp.http.X-Cache-Hit == 0
+
+ txreq -url "/multiple-content-encoding" -hdr "Accept-Encoding: deflate,gzip;q=0.7"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "deflate, gzip"
+ expect resp.bodylen == 109
+ expect resp.http.X-Cache-Hit == 1
+
+
+ #
+ # Unknown content-encoding
+ # The response should not be cached since it has an unknown content encoding
+ #
+ txreq -url "/unknown-content-encoding" -hdr "Accept-Encoding: gzip;q=0.8, deflate, first_encoding"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "unknown_encoding"
+ expect resp.bodylen == 119
+ expect resp.http.X-Cache-Hit == 0
+
+ txreq -url "/unknown-content-encoding" -hdr "Accept-Encoding: deflate,gzip;q=0.8, first_encoding"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "unknown_encoding"
+ expect resp.bodylen == 119
+ expect resp.http.X-Cache-Hit == 0
+
+ #
+ # Hash collision (https://github.com/haproxy/haproxy/issues/988)
+ #
+ # crc32(gzip) ^ crc32(br) ^ crc32(xxx) ^ crc32(jdcqiab) == crc32(gzip)
+ txreq -url "/hash-collision" -hdr "Accept-Encoding: br,gzip,xxx,jdcqiab"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "br"
+ expect resp.bodylen == 129
+ expect resp.http.X-Cache-Hit == 0
+
+ txreq -url "/hash-collision" -hdr "Accept-Encoding: gzip"
+ rxresp
+ expect resp.status == 200
+ expect resp.http.content-encoding == "gzip"
+ expect resp.bodylen == 139
+ expect resp.http.X-Cache-Hit == 0
+} -run
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