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# This reg-test is uses to test respect of the websocket protocol according to
# rfc6455.
#
# In particular, a request/response without a websocket key must be rejected by
# haproxy. Note that in the tested case (h1 on both sides), haproxy does not
# validate the key of the server but only checks its presence.
#
# For the case h2 client/h1 server, haproxy would add the key and validates it.
# However, there is no way to check this case quickly at the moment using vtest.
varnishtest "WebSocket test"
feature ignore_unknown_macro
#REQUIRE_VERSION=2.4
# valid websocket server
server s1 {
rxreq
expect req.method == "GET"
expect req.http.connection == "upgrade"
expect req.http.upgrade == "websocket"
expect req.http.sec-websocket-key == "dGhlIHNhbXBsZSBub25jZQ=="
txresp \
-status 101 \
-hdr "connection: upgrade" \
-hdr "upgrade: websocket" \
-hdr "sec-websocket-accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo="
recv 4
send "PONG"
} -start
# non-conformant server: no websocket key
server s2 {
rxreq
expect req.method == "GET"
expect req.http.connection == "upgrade"
expect req.http.upgrade == "websocket"
txresp \
-status 101 \
-hdr "connection: upgrade" \
-hdr "upgrade: websocket"
} -start
# haproxy instance used as a server
# generate a http/1.1 websocket response with the valid key
haproxy hap_srv -conf {
defaults
mode http
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
listen fe1
bind "fd@${fe1}"
# reject if the request does not contains a websocket key
acl ws_handshake hdr(sec-websocket-key) -m found
http-request reject unless ws_handshake
# return a valid websocket handshake response
capture request header sec-websocket-key len 128
http-request return status 200 hdr connection upgrade hdr upgrade websocket hdr sec-websocket-accept "%[capture.req.hdr(0),concat(258EAFA5-E914-47DA-95CA-C5AB0DC85B11,,),sha1,base64]"
http-after-response set-status 101 if { status eq 200 }
} -start
# haproxy instance used as a server
# generate a http/1.1 websocket response with an invalid key
haproxy hap_srv_bad_key -conf {
defaults
mode http
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
listen fe1
bind "fd@${fe1}"
# reject if the request does not contains a websocket key
acl ws_handshake hdr(sec-websocket-key) -m found
http-request reject unless ws_handshake
# return an invalid websocket handshake response
capture request header sec-websocket-key len 128
http-request return status 200 hdr connection upgrade hdr upgrade websocket hdr sec-websocket-accept "invalid_key"
http-after-response set-status 101 if { status eq 200 }
} -start
haproxy hap -conf {
defaults
mode http
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
listen fe1
bind "fd@${fe1}"
server s1 ${s1_addr}:${s1_port}
listen fe2
bind "fd@${fe2}"
server s2 ${s2_addr}:${s2_port}
listen fe3
bind "fd@${fe3}" proto h2
server hap_srv ${hap_srv_fe1_addr}:${hap_srv_fe1_port}
listen fe4
bind "fd@${fe4}" proto h2
server hap_srv_bad_key ${hap_srv_bad_key_fe1_addr}:${hap_srv_bad_key_fe1_port}
} -start
# standard request
client c1 -connect ${hap_fe1_sock} {
txreq \
-req "GET" \
-url "/" \
-hdr "host: 127.0.0.1" \
-hdr "connection: upgrade" \
-hdr "upgrade: websocket" \
-hdr "sec-websocket-key: dGhlIHNhbXBsZSBub25jZQ=="
rxresp
expect resp.status == 101
expect resp.http.connection == "upgrade"
expect resp.http.upgrade == "websocket"
expect resp.http.sec-websocket-accept == "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="
send "PING"
recv 4
} -run
# missing websocket key
client c2 -connect ${hap_fe1_sock} {
txreq \
-req "GET" \
-url "/" \
-hdr "host: 127.0.0.1" \
-hdr "connection: upgrade" \
-hdr "upgrade: websocket"
rxresp
expect resp.status == 400
} -run
# missing key on server side
client c3 -connect ${hap_fe2_sock} {
txreq \
-req "GET" \
-url "/" \
-hdr "host: 127.0.0.1" \
-hdr "connection: upgrade" \
-hdr "upgrade: websocket" \
-hdr "sec-websocket-key: dGhlIHNhbXBsZSBub25jZQ=="
rxresp
expect resp.status == 502
} -run
# connect with http/2 on a http/1.1 websocket server
# the key must be provided by haproxy
client c4 -connect ${hap_fe3_sock} {
txpri
stream 0 {
txsettings
rxsettings
txsettings -ack
rxsettings
expect settings.ack == true
} -run
stream 1 {
txreq \
-req "CONNECT" \
-scheme "http" \
-url "/" \
-hdr ":authority" "127.0.0.1" \
-hdr ":protocol" "websocket"
rxhdrs
expect resp.status == 200
} -run
} -run
# connect with http/2 on a http/1.1 websocket server
# however, the server will respond with an invalid key
# haproxy is responsible to reject the request and returning a 502 to the client
client c5 -connect ${hap_fe4_sock} {
txpri
stream 0 {
txsettings
rxsettings
txsettings -ack
rxsettings
expect settings.ack == true
} -run
stream 1 {
txreq \
-req "CONNECT" \
-scheme "http" \
-url "/" \
-hdr ":authority" "127.0.0.1" \
-hdr ":protocol" "websocket"
rxhdrs
expect resp.status == 502
} -run
} -run
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