MINOR: server: add ws keyword
Implement parsing for the server keyword 'ws'. This is used to configure
the mode of selection for websocket protocol. The configuration
documentation has been updated.
A new regtest has been created to test the proper behavior of the
keyword.
(cherry picked from commit f9d5957cd9a94c517a9d1fea8f536ab08922d9a9)
[ad: no support for dynamic servers for error-limit keyword]
Signed-off-by: Amaury Denoyelle <adenoyelle@haproxy.com>
diff --git a/reg-tests/http-messaging/srv_ws.vtc b/reg-tests/http-messaging/srv_ws.vtc
new file mode 100644
index 0000000..811d9db
--- /dev/null
+++ b/reg-tests/http-messaging/srv_ws.vtc
@@ -0,0 +1,181 @@
+# This reg-test checks websocket support in regards with the server keyword
+# 'ws'
+
+varnishtest "h2 backend websocket management via server keyword"
+
+feature ignore_unknown_macro
+
+#REQUIRE_VERSION=2.4
+#REQUIRE_OPTION=OPENSSL
+
+# haproxy server
+haproxy hapsrv -conf {
+ defaults
+ mode http
+ timeout connect 5s
+ timeout client 5s
+ timeout server 5s
+
+ frontend fe
+ bind "fd@${fe}"
+ bind "fd@${fessl}" ssl crt ${testdir}/common.pem alpn h2,http/1.1
+ capture request header sec-websocket-key len 128
+ http-request set-var(txn.ver) req.ver
+ use_backend be
+
+ backend be
+ # define websocket ACL
+ acl ws_handshake hdr(upgrade) -m str websocket
+
+ # handle non-ws streams
+ http-request return status 200 if !ws_handshake
+
+ # handle ws streams
+ #capture request header sec-websocket-key len 128
+ http-request return status 200 hdr connection upgrade hdr upgrade websocket hdr sec-websocket-accept "%[capture.req.hdr(0),concat(258EAFA5-E914-47DA-95CA-C5AB0DC85B11,,),sha1,base64]" if ws_handshake
+ http-after-response set-status 101 if { status eq 200 } { res.hdr(upgrade) -m str websocket }
+ http-after-response set-header x-backend-protocol "%[var(txn.ver)]"
+} -start
+
+# haproxy LB
+haproxy hap -conf {
+ defaults
+ mode http
+ timeout connect 1s
+ timeout client 1s
+ timeout server 1s
+
+ # proto X ws h1 -> websocket on h1
+ listen li
+ bind "fd@${li}"
+ server hap_srv ${hapsrv_fe_addr}:${hapsrv_fe_port} proto h2 ws h1
+
+ # proto X ws h2 -> websocket on h2
+ listen lih2
+ bind "fd@${lih2}"
+ server hap_srv ${hapsrv_fe_addr}:${hapsrv_fe_port} proto h2 ws h2
+
+ # alpn h2,http/1.1 ws h2 -> websocket on h2
+ listen lisslh2
+ bind "fd@${lisslh2}"
+ server hap_srv ${hapsrv_fessl_addr}:${hapsrv_fessl_port} ssl verify none alpn h2,http/1.1 ws h2
+ http-response set-header x-alpn "%[ssl_bc_alpn]"
+
+ # ws auto -> websocket on h1
+ listen liauto
+ bind "fd@${liauto}"
+ server hap_srv ${hapsrv_fe_addr}:${hapsrv_fe_port}
+
+ # alpn h2,http/1.1 ws auto -> websocket on h1
+ listen lissl
+ bind "fd@${lissl}"
+ server hap_srv ${hapsrv_fessl_addr}:${hapsrv_fessl_port} ssl verify none alpn h2,http/1.1 ws auto
+ http-response set-header x-alpn "%[ssl_bc_alpn]"
+ # alpn h2,http/1.1 ws auto -> websocket on h1
+ listen lisslauto
+ bind "fd@${lisslauto}"
+ server hap_srv ${hapsrv_fessl_addr}:${hapsrv_fessl_port} ssl verify none alpn h2,http/1.1
+ http-response set-header x-alpn "%[ssl_bc_alpn]"
+
+ # proto h2 ws auto -> websocket on h2
+ listen liauto2
+ bind "fd@${liauto2}"
+ server hap_srv ${hapsrv_fe_addr}:${hapsrv_fe_port} proto h2
+
+ # alpn h2 ws auto -> websocket on h2
+ listen lisslauto2
+ bind "fd@${lisslauto2}"
+ server hap_srv ${hapsrv_fessl_addr}:${hapsrv_fessl_port} ssl verify none alpn h2 ws auto
+ http-response set-header x-alpn "%[ssl_bc_alpn]"
+} -start
+
+client c1 -connect ${hap_li_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.x-backend-protocol == "1.1"
+} -run
+
+client c1.2 -connect ${hap_lih2_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.x-backend-protocol == "2.0"
+} -run
+
+client c1.3 -connect ${hap_liauto_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.x-backend-protocol == "1.1"
+} -run
+
+client c1.4 -connect ${hap_liauto2_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.x-backend-protocol == "2.0"
+} -run
+
+client c2 -connect ${hap_lisslauto_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.x-alpn == "http/1.1"
+} -run
+
+client c2.2 -connect ${hap_lisslauto2_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.x-alpn == "h2"
+} -run
+
+client c2.3 -connect ${hap_lisslh2_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.x-alpn == "h2"
+} -run