Hello,
Sometimes def:acl_xx returns false even if variable has a value.
Exim version 4.50 #1 built 02-Mar-2005 07:42:40, standard debian package
exim4-daemon-heavy 4.50-4 with custom configuration.
I prepared special acl config (RCPT TO:) for testing, it looks like:
defer !senders = :
senders = <, GET_PERSONAL_WHITELIST
message = try this address in the next batch
logwrite = DEBUG_PRE_SET: $ACL_PROTECTION
set acl_m0 = 0
logwrite = DEBUG_POST_SET: $ACL_PROTECTION
condition = ${if def:ACL_PROTECTION}
condition = ${if >={$ACL_PROTECTION}{0}}
Debug info (exim4 -d+alc+expand -bh <ip>) fragment:
...
expanding: DEBUG_PRE_SET: $acl_m0
result: DEBUG_PRE_SET:
check logwrite = DEBUG_PRE_SET: $acl_m0
= DEBUG_PRE_SET:
LOG: MAIN
DEBUG_PRE_SET:
check set acl_m0 = 0
expanding: DEBUG_POST_SET: $acl_m0
*1) result: DEBUG_POST_SET: 0
check logwrite = DEBUG_POST_SET: $acl_m0
= DEBUG_POST_SET: 0
LOG: MAIN
DEBUG_POST_SET: 0
condition: def:acl_m0
*2) result: false
expanding: ${if def:acl_m0}
result:
check condition = ${if def:acl_m0}
=
defer: condition test failed
In line *1 $acl_m0 is "0", but check with def:acl_0 returns false (*2).
Exim spec says:
"The condition is true if the named expansion variable does not contain
the empty string, ..."
Regards,
Kupson
