haproxy/reg-tests/lua/close_wait_lf.vtc

# commit 70d318c
# BUG/MEDIUM: lua: possible CLOSE-WAIT state with '\n' headers
#
# The Lua parser doesn't takes in account end-of-headers containing
# only '\n'. It expects always '\r\n'. If a '\n' is processes the Lua
# parser considers it miss 1 byte, and wait indefinitely for new data.
#
# When the client reaches their timeout, it closes the connection.
# This close is not detected and the connection keep in CLOSE-WAIT
# state.
#
# I guess that this patch fix only a visible part of the problem.
# If the Lua HTTP parser wait for data, the timeout server or the
# connectio closed by the client may stop the applet.

varnishtest "possible CLOSE-WAIT with '\n' headers"
#REQUIRE_OPTIONS=LUA
#REGTEST_TYPE=bug

feature ignore_unknown_macro

syslog Slog -level info -repeat 100 {
    recv info
    expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Ta=[0-9]* Tc=[0-9]* Td=[0-9]* Th=[0-9]* Ti=[0-9]* Tq=[0-9]* TR=[0-9]* Tr=[0-9]* Tt=[0-9]* Tw=[0-9]*"
} -start

haproxy h1 -conf {
    defaults
        timeout client  1s
        timeout connect 1s

    global
        lua-load ${testdir}/close_wait_lf.lua

    frontend frt
        log ${Slog_addr}:${Slog_port} local0 debug err
        log-format Ta=%Ta\ Tc=%Tc\ Td=%Td\ Th=%Th\ Ti=%Ti\ Tq=%Tq\ TR=%TR\ Tr=%Tr\ Tt=%Tt\ Tw=%Tw
        mode http
        bind "fd@${frt}"
        http-request use-service lua.donothing
} -start


client c1 -connect ${h1_frt_sock} -repeat 100  {
    send "GET / HTTP/1.1\n\n"
} -run

syslog Slog -wait

shell {
    ss -pt | grep CLOSE-WAIT.*haproxy.*pid=${h1_pid}
    exit $((!$?))
}