varnishtest "Test connection upgrades from TCP to HTTP"

#REQUIRE_VERSION=2.4

feature ignore_unknown_macro

server s1 {
    # TCP > H1 using "switch-mode http"
    rxreq
    expect req.http.x-stream-mode == tcp
    expect req.http.x-name == fe1
    txresp
    rxreq
    expect req.http.x-stream-mode == http
    expect req.http.x-name == fe1
    txresp

    accept

    # TCP > H1 using backend mode
    rxreq
    expect req.http.x-name == be
    txresp
    rxreq
    expect req.http.x-name == be
    txresp

    accept

    # TCP > H2 using "switch-mode http"
    rxreq
    expect req.http.x-stream-mode == http
    expect req.http.x-name == fe1
    txresp
    rxreq
    expect req.http.x-stream-mode == http
    expect req.http.x-name == fe1
    txresp

    # To be sure no other request was received
    accept
    rxreq
    txresp
} -start

haproxy h1 -conf {
    frontend fe1
        mode tcp
        bind "fd@${fe1h1}"

        tcp-request inspect-delay 1s
        tcp-request content set-var(req.stream_mode) internal.strm.is_htx,iif(http,tcp)
        tcp-request content switch-mode http if HTTP
        tcp-request content reject # never reached

        http-request set-header x-stream-mode %[var(req.stream_mode)]
        http-request set-header x-name %[fe_name]

        default_backend be

    frontend fe2
        mode tcp
        bind "fd@${fe2h1}"
        default_backend be

    backend be
        mode http
        http-request set-header x-name %[be_name] unless { req.fhdr(x-name) -m found }
        server s1 ${s1_addr}:${s1_port}

    listen li1
        mode http
        bind "fd@${li1h1}"
        server s1 ${h1_fe1h1_addr}:${h1_fe1h1_port} proto h2

    listen err1
        mode http
        bind "fd@${err1h1}" proto h1
        server s1 ${s1_addr}:${s1_port}

    listen err2
        mode tcp
        bind "fd@${err2h1}"

        tcp-request inspect-delay 1s
        tcp-request content switch-mode http proto h1 if HTTP
        tcp-request content reject # never reached

        default_backend be

    listen err3
        mode tcp
        bind "fd@${err3h1}" proto none

        tcp-request inspect-delay 1s
        tcp-request content switch-mode http if HTTP
        tcp-request content reject # never reached

        default_backend be
} -start

# TCP > H1 using "switch-mode http"
client c1 -connect ${h1_fe1h1_sock} {
    txreq
    rxresp
    expect resp.status == 200

    txreq
    rxresp
    expect resp.status == 200
} -run

# TCP > H1 using backend mode
client c2 -connect ${h1_fe2h1_sock} {
    txreq
    rxresp
    expect resp.status == 200

    txreq
    rxresp
    expect resp.status == 200
} -run


# TCP > H2 using "switch-mode http"
client c3 -connect ${h1_li1h1_sock} {
    txreq
    rxresp
    expect resp.status == 200

    txreq
    rxresp
    expect resp.status == 200
} -run

# implicit H1 > H2 upgrade not performed
client c_err1 -connect ${h1_err1h1_sock} {
    send "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
    rxresp
    expect resp.status == 400
} -run


# TCP > H1 > H2 upgrade not allowed
client c_err2 -connect ${h1_err2h1_sock} {
    send "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
    expect_close
} -run


# TCP > HTTP upgrade not allowed
client c_err3 -connect ${h1_err3h1_sock} {
    txreq
    expect_close
} -run

# To be sure no other request was received by the server
client c_end -connect ${s1_sock} {
    txreq
    rxresp
} -run