### -*-m4-*-
###
### User-configurable spam filtering for distorted.org.uk Exim configuration
###
### (c) 2012 Mark Wooding
###

###----- Licensing notice ---------------------------------------------------
###
### This program is free software; you can redistribute it and/or modify
### it under the terms of the GNU General Public License as published by
### the Free Software Foundation; either version 2 of the License, or
### (at your option) any later version.
###
### This program is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
### GNU General Public License for more details.
###
### You should have received a copy of the GNU General Public License
### along with this program; if not, write to the Free Software Foundation,
### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

DIVERT(null)
###--------------------------------------------------------------------------
### User-configurable spam thresholds.

m4_define(<:USER_SPAMLIMIT_ROUTER:>,
<:SPAMLIMIT_ROUTER(fetch_spam_limit_$1_$2)
	check_local_user
	local_part_suffix = CONF_user_suffix_list
	local_part_suffix_optional = true
	$3:>)

m4_define(<:USER_SPAMLIMIT_ROUTERS:>,
<:USER_SPAMLIMIT_ROUTER(<:lookup:>, <:$1:>,
	<:$5SPAMLIMIT_LOOKUP(<:CONF_userconf_dir/spam-limit:>,
		<:$2:>, <:$3:>, <:$4:>, <:user=$local_part:>):>)
USER_SPAMLIMIT_ROUTER(<:userv:>, <:$1:>,
	<:$5SPAMLIMIT_USERV(<:$local_part:>,
		<:$2:>, <:$3:>, <:$4:>, <:user=$local_part:>):>):>)

m4_define(<:CURRENT_LOCAL_PART:>,
	<:$local_part_prefix$local_part$local_part_suffix:>)

m4_define(<:ORIGINAL_ADDRESS:>, <:$original_local_part@$original_domain:>)
m4_define(<:PARENT_ADDRESS:>, <:$parent_local_part@$parent_domain:>)
m4_define(<:CURRENT_ADDRESS:>, <:CURRENT_LOCAL_PART@$domain:>)

SECTION(routers, allspam)m4_dnl
## If we're verifying an address and the recipient has a `~/.mail/spam-limit'
## file, then look up the recipient and sender addresses to find a plausible
## limit and insert it into the `address_data' where the RCPT ACL can find
## it.  This router always declines, so it doesn't affect the overall outcome
## of the verification.
##
## As a result of forwarding and aliasing, the original envelope recipient
## may have been set a while ago, so we'll search through the history until
## we find a match.
USER_SPAMLIMIT_ROUTERS(<:original:>,
	<:$original_local_part:>, <:$original_domain:>, <:$sender_address:>,
	<:condition = ${if !eq{ORIGINAL_ADDRESS}{PARENT_ADDRESS}}
	:>)
USER_SPAMLIMIT_ROUTERS(<:parent:>,
	<:$parent_local_part:>, <:$parent_domain:>, <:$sender_address:>,
	<:condition = ${if !eq{PARENT_ADDRESS}{CURRENT_ADDRESS}}
	:>)
USER_SPAMLIMIT_ROUTERS(<:current:>,
	<:CURRENT_LOCAL_PART:>, <:$domain:>, <:$sender_address:>)

DIVERT(null)
###----- That's all, folks --------------------------------------------------