chiark - git - mdw - exim-config/blob - vhost.m4

   1 ### -*-m4-*-
   2 ###
   3 ### Virtual host support for distorted.org.uk Exim configuration
   4 ###
   5 ### (c) 2012 Mark Wooding
   6 ###
   7
   8 ###----- Licensing notice ---------------------------------------------------
   9 ###
  10 ### This program is free software; you can redistribute it and/or modify
  11 ### it under the terms of the GNU General Public License as published by
  12 ### the Free Software Foundation; either version 2 of the License, or
  13 ### (at your option) any later version.
  14 ###
  15 ### This program is distributed in the hope that it will be useful,
  16 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ### GNU General Public License for more details.
  19 ###
  20 ### You should have received a copy of the GNU General Public License
  21 ### along with this program; if not, write to the Free Software Foundation,
  22 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23
  24 m4_define(<:VHOST:>,
  25         <:domains = ${if exists{CONF_sysconf_dir/domains.conf} \
  26                          {partial0-lsearch; CONF_sysconf_dir/domains.conf} \
  27                          {}}:>)
  28 m4_define(<:VHOST_FILTER:>,
  29         <:FILTER_BASE
  30         VHOST
  31         condition = DOMKV($2, {true}{false})
  32         router_home_directory = DOMKV(home, {$value} fail)
  33         $1 = ${expand:DOMKV($2)}:>)
  34 m4_define(<:VHOST_USER:>,
  35         <:user = DOMKV(owner, {$value}{CONF_filter_user})
  36         errors_to = DOMKV(errors_to, {$value} fail):>)
  37
  38 ###--------------------------------------------------------------------------
  39 ### Routers and transports for virtual hosting.
  40
  41 SECTION(routers, route)m4_dnl
  42 ## If we're a front-end for some other domain, or we have special information
  43 ## about the domain, then pass stuff along as instructed.  The hack for the
  44 ## `transport' is very nasty; see the commentary for `smtp'.
  45 virtual_route:
  46         driver = manualroute
  47         self = fail
  48         VHOST
  49         condition = DOMKV(route, {true}{false})
  50         route_data = <;DOMKV(route)
  51         same_domain_copy_routing = true
  52         transport = DOMKV(tls-min-dh-bits, {smtp_dhbits_$value}{smtp})
  53         no_more
  54
  55 SECTION(routers, virtual)m4_dnl
  56 ## Remap recipients according to the virtual host's instructions.  This must
  57 ## be done in two passes, so that we can identify the correct user's spam
  58 ## threshold during address verification.
  59 FILTER_ROUTER(virtual_data,
  60         <:VHOST_FILTER(data, redirect):>,, <:
  61         VHOST_USER:>)
  62 FILTER_ROUTER(virtual_file,
  63         <:VHOST_FILTER(file, filter):>,, <:
  64         VHOST_USER:>)
  65
  66 SECTION(routers, virtual-spam)m4_dnl
  67 ## If we're dealing with a virtual host, see if we have special spam-limit
  68 ## rules to apply.
  69 SPAMLIMIT_ROUTER(virtual_spam_limit_lookup)
  70         VHOST
  71         condition = DOMKV(spam-limit-file, {true}{false})
  72         SPAMLIMIT_LOOKUP(DOMKV(spam-limit-file),
  73                 $local_part, $domain, $sender_address)
  74 SPAMLIMIT_ROUTER(virtual_spam_limit_userv)
  75         VHOST
  76         condition = DOMKV(spam-limit-userv, {true}{false})
  77         SPAMLIMIT_USERV(DOMKV(spam-limit-userv),
  78                 $local_part, $domain, $sender_address)
  79
  80 SECTION(routers, virtual-tail)m4_dnl
  81 ## Last ditch effort for required local parts.  This is a bit strange because
  82 ## we should only try this for `final' domains -- where we're not going to
  83 ## route using the system-wide rules -- and we want the router to decline if
  84 ## the local part isn't one of our required set so that routing as a whole
  85 ## fails.
  86 virtual_endstop:
  87         VHOST
  88         condition = DOMKV(final, {$value}{true})
  89         driver = redirect
  90         no_more
  91         data = ${if match_local_part{$local_part}{+required} \
  92                     {DOMKV(errors_to, \
  93                            {$value} \
  94                            {DOMKV(owner, \
  95                                   {$value} \
  96                                   {postmaster})})} \
  97                     {:unknown:}}
  98
  99 DIVERT(null)
 100 ###----- That's all, folks --------------------------------------------------