1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
# 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
# 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 {
global
.if feature(THREAD)
thread-groups 1
.endif
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 {
global
.if feature(THREAD)
thread-groups 1
.endif
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 {
global
.if feature(THREAD)
thread-groups 1
.endif
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" \
-nostrend
rxwinup
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" \
-nostrend
rxwinup
rxhdrs
expect resp.status == 502
} -run
} -run
|
