debian/exim4-config.config

   1 #!/bin/sh
   2 set -e
   3
   4 alias stripwhitespace="sed -e 's/^[[:blank:]]*//' -e 's/[[:blank:]]*$//'"
   5
   6 installeddebconfversion="$(dpkg -s debconf | sed -ne '/^Version/s/^Version: //p')"
   7 if [ "reconfigure" != "$1" ] && \
   8         dpkg --compare-versions "${installeddebconfversion}" "le" "1.4" && \
   9         [ "$exim4postinstisrunning" != "true" ] ; then
  10         echo "exim4-config.postinst: [WARN] Installed debconf version is broken. Aborting preconfigure." 1>&2
  11         exit 0
  12 fi
  13
  14 . /usr/share/debconf/confmodule
  15
  16 if [ -n "$EX4DEBUG" ]; then
  17   echo "now debugging $0 $@"
  18   set -x
  19 fi
  20
  21 UE4CC="/etc/exim4/update-exim4.conf.conf"
  22
  23 convert_to_long ()
  24 {
  25         case "$1" in
  26         internet)
  27                 echo -n "internet site; mail is sent and received directly using SMTP"
  28                 ;;
  29         smarthost)
  30                 echo -n "mail sent by smarthost; received via SMTP or fetchmail"
  31                 ;;
  32         satellite)
  33                 echo -n "mail sent by smarthost; no local mail"
  34                 ;;
  35         local)
  36                 echo -n "local delivery only; not on a network"
  37                 ;;
  38         none)
  39                 echo -n "no configuration at this time"
  40                 ;;
  41         esac
  42 }
  43 convert_to_short ()
  44 {
  45         case "$1" in
  46         "internet site; mail is sent and received directly using SMTP")
  47                 echo -n "internet"
  48                 ;;
  49         "mail sent by smarthost; received via SMTP or fetchmail")
  50                 echo -n "smarthost"
  51                 ;;
  52         "mail sent by smarthost; no local mail")
  53                 echo -n "satellite"
  54                 ;;
  55         "local delivery only; not on a network")
  56                 echo -n "local"
  57                 ;;
  58         "no configuration at this time")
  59                 echo -n "none"
  60                 ;;
  61         esac
  62 }
  63
  64 convert_transport_to_long ()
  65 {
  66         case "$1" in
  67         maildir_home)
  68                 echo -n "Maildir format in home directory"
  69                 ;;
  70         mail_spool)
  71                 echo -n "mbox format in /var/mail/"
  72                 ;;
  73         *)
  74                 echo -n "locally customized"
  75                 ;;
  76         esac
  77 }
  78 convert_transport_to_short ()
  79 {
  80         case "$1" in
  81         "Maildir format in home directory")
  82                 echo -n "maildir_home"
  83                 ;;
  84         "mbox format in /var/mail/")
  85                 echo -n "mail_spool"
  86                 ;;
  87         *)
  88                 echo -n "custom"
  89                 ;;
  90         esac
  91 }
  92
  93 # store environment variables in debconf db.
  94 storevar2db() {
  95         dc_eximconfig_configtype="$(printf '%s\n' "${dc_eximconfig_configtype}" | stripwhitespace)"
  96         dc_local_interfaces="$(printf '%s\n' "${dc_local_interfaces}" | stripwhitespace)"
  97         dc_other_hostnames="$(printf '%s\n' "${dc_other_hostnames}" | stripwhitespace)"
  98         dc_readhost="$(printf '%s\n' "${dc_readhost}" | stripwhitespace)"
  99         dc_relay_domains="$(printf '%s\n' "${dc_relay_domains}" | stripwhitespace)"
 100         dc_relay_nets="$(printf '%s\n' "${dc_relay_nets}" | stripwhitespace)"
 101         dc_smarthost="$(printf '%s\n' "${dc_smarthost}" | stripwhitespace)"
 102         dc_minimaldns="$(printf '%s\n' "${dc_minimaldns}" | stripwhitespace)"
 103         dc_use_split_config="$(printf '%s\n' "${dc_use_split_config}" | stripwhitespace)"
 104         dc_hide_mailname="$(printf '%s\n' "${dc_hide_mailname}" | stripwhitespace)"
 105         # store externally changed values to debconf.db
 106         db_set exim4/dc_eximconfig_configtype \
 107                 "$(convert_to_long ${dc_eximconfig_configtype})"
 108         db_set exim4/dc_local_interfaces "${dc_local_interfaces}"
 109         db_set exim4/dc_other_hostnames "${dc_other_hostnames}"
 110         db_set exim4/dc_readhost "${dc_readhost}"
 111         db_set exim4/dc_relay_domains "${dc_relay_domains}"
 112         db_set exim4/dc_relay_nets "${dc_relay_nets}"
 113         db_set exim4/dc_smarthost "${dc_smarthost}"
 114         if [ "${dc_minimaldns}" != "" ]; then
 115                 db_set exim4/dc_minimaldns "${dc_minimaldns}"
 116         fi
 117         db_set exim4/use_split_config "${dc_use_split_config}"
 118         db_set exim4/hide_mailname "${dc_hide_mailname}"
 119         # do not store "locally customized" in debconf db, otherwise simply
 120         # removing the custom dc_localdelivery from ue4cc won't work.
 121         if [ "${dc_localdelivery}" != "" ] &&
 122                 [ "$(convert_transport_to_long ${dc_localdelivery})" != "locally customized" ] ; then
 123                 db_set exim4/dc_localdelivery \
 124                         "$(convert_transport_to_long ${dc_localdelivery})"
 125         fi
 126         db_fset "exim4/dc_other_hostnames" mailname "${dc_mailname_in_oh}"
 127 }
 128
 129 # ipv6: replace double colons in colon-separated host lists with umlaut-o
 130 # replace ':' with ' : ', add leading and ending whitespace.
 131 # return empty string if custom delimiter was used:
 132         #    local_domains = <; 172.16.0.0/12; 3ffe:ffff:836f::/48
 133 # e.g: 'localhost : 172.16.0.1 :3ffe::ffff::836f::::: foo.org'
 134 #       ===> ' localhost : 172.16.0.1 : 3ffeöffffö836föö : foo.org '
 135 alias coloncolon2oe="env -u LC_ALL LC_CTYPE=C sed -e 's/[[:blank:]]*//g' -e '/^</d' -e 's/:::::/:öö/g' -e 's/::::/öö/g' -e 's/:::/:ö/g' -e 's/::/ö/g' -e 's/:/ : /g' -e 's/^/ /' -e 's/$/ /'"
 136
 137 # try to parse exim3 configuration file - works only if it was generated
 138 # with eximconfig.
 139 parseexim3() {
 140         dc_mailname="$(head -n 1 /etc/mailname | stripwhitespace)" || true
 141
 142         # get the .... entries from
 143         # host_accept_relay = 127.0.0.1 : ::::1 : ......
 144         # if they exist, ie. parse list, and remove "127.0.0.1", "::::1"
 145         # and "localhost" from it.
 146         #
 147         dc_relay_nets="$(cat $1 | grep -h '^host_accept_relay[[:blank:]]*=' | sed -e 's/^host_accept_relay[[:blank:]]*=//' | coloncolon2oe | env -u LC_ALL LC_CTYPE=C sed -e 's/ 127\.0\.0\\.1 //g' -e 's/ localhost //g' -e 's/ öö1//g' -e 's/[[:blank:]]*//g' -e 's/::/:/g' -e 's/^://' -e 's/:$//' -e 's/ö/::/g')"
 148
 149         # 'local_domains = $colonhostnames', including mailname and "localhost"
 150         #
 151         dc_other_hostnames="$(cat $1 | grep -h '^local_domains[[:blank:]]*=' | sed -e 's/^local_domains[[:blank:]]*=//' | coloncolon2oe | env -u LC_ALL LC_CTYPE=C sed -e 's/ localhost //g' -e "s/ ${dc_mailname} //g" -e 's/[[:blank:]]*//g' -e 's/::/:/g' -e 's/^://' -e 's/:$//' -e 's/ö/::/g')"
 152
 153         # relay_domains = some.domain
 154         dc_relay_domains="$(cat $1 | grep -h '^relay_domains = ' | sed -e 's/^relay_domains[[:blank:]]*=[[:blank:]]*//' -e 's/[[:blank:]]*$//')"
 155
 156         # lookuphost router exist ---> dc_eximconfig_configtype=internet
 157         #
 158         if cat $1 | grep -h -A2 '^lookuphost:' | \
 159                 grep -h -A1 '[[:blank:]]*driver = lookuphost' | \
 160                 grep -h -q '[[:blank:]]*transport = remote_smtp' ; then
 161                 dc_eximconfig_configtype=internet
 162         else
 163                 # smart:-director exists ---> dc_eximconfig_configtype=satellite
 164                 #
 165                 # Later we need the new_address directive to find dc_readhost.
 166                 # ' || true' is required for "set -e"
 167                 dc_readhost="$(cat $1 | grep -h -A2 '^smart:' | grep -h -A1 '^[[:blank:]]*driver = smartuser' | grep -h '^[[:blank:]]*new_address' || true)"
 168
 169                 # smarthost router exists --> dc_eximconfig_configtype is satellite or smarthost
 170                 #
 171                 # we need the route_list directive to find dc_smarthost
 172                 # ' || true' is required for "set -e"
 173                 dc_smarthost="$(< $1 grep -A3 '^smarthost:' | grep -A2 '[[:blank:]]*driver = domainlist' | grep -A1 '^[[:blank:]]*transport = remote_smtp' | grep '^[[:blank:]]*route_list = ".*"' || true)"
 174
 175                 if [ ! -z "${dc_readhost}" ] ; then
 176                         dc_eximconfig_configtype=satellite
 177                 elif [ ! -z "${dc_smarthost}" ] ; then
 178                         dc_eximconfig_configtype=smarthost
 179                 elif ! cat "$1" | grep -h -q '^remote_smtp:'; then
 180                         # dc_eximconfig_configtype=local has no remote_smtp transport.
 181                         dc_eximconfig_configtype=local
 182                 else
 183                         # handcrafted config. We probably misparsed, reset values
 184                         # and exit.
 185                         dc_eximconfig_configtype=''
 186                         dc_local_interfaces='notset'
 187                         dc_other_hostnames=''
 188                         dc_readhost=''
 189                         dc_relay_domains=''
 190                         dc_relay_nets=''
 191                         dc_smarthost=''
 192                         dc_hide_mailname=''
 193                         return 1
 194                 fi
 195         fi
 196
 197         case ${dc_eximconfig_configtype} in
 198                 internet|local)
 199                         #paranoia
 200                         dc_readhost=''
 201                         dc_smarthost=''
 202                         dc_hide_mailname='false'
 203                         ;;
 204                 satellite)
 205                         #  new_address = ${local_part}@$readhost
 206                         dc_readhost="$(printf '%s\n' "${dc_readhost}" | sed -e 's/^.*@//' -e 's/[[:blank:]]*$//')"
 207                         #  route_list = "* $smtphost bydns_a"
 208                         dc_smarthost="$(printf '%s\n' "${dc_smarthost}" | \
 209                                 sed -e 's/^ *route_list = "\* //' -e 's/ bydns_a"//' -e 's/[[:blank:]]*$//')"
 210                         dc_hide_mailname='true'
 211                         dc_relay_domains=''
 212                         ;;
 213                 smarthost)
 214                         #  route_list = "* $smtphost bydns_a"
 215                         dc_smarthost="$(printf '%s\n' "${dc_smarthost}" | \
 216                                 sed -e 's/^ *route_list = "\* //' -e 's/ bydns_a"//' -e 's/[[:blank:]]*$//')"
 217                         dc_hide_mailname='false'
 218                         dc_relay_domains=''
 219                         ;;
 220         esac
 221 }
 222
 223 ##########
 224 mailname2otherhostnames() {
 225         # u-ex4.conf no longer includes mailname in local domains,
 226         # insert it once into other_hostnames.
 227         # The debconf script might run twice, we need to store the result
 228         # in a file to pass it to postinst..
 229         [ -d /var/lib/exim4 ] || \
 230                 install -d -oroot -groot -m755 /var/lib/exim4
 231         dc_mailname="$(head -n 1 /etc/mailname | stripwhitespace)" || true
 232         if [ -z "${dc_other_hostnames}" ] ; then
 233                 dc_other_hostnames="${dc_mailname}"
 234         else
 235                 dc_other_hostnames="$(printf '%s\n' "${dc_other_hostnames}" | stripwhitespace)":${dc_mailname}
 236         fi
 237         printf '%s\n' dc_other_hostnames="'""${dc_other_hostnames}""'" > \
 238                 /var/lib/exim4/addmailname2oh
 239         db_fset "exim4/dc_other_hostnames" mailname true
 240         dc_mailname_in_oh="true"
 241 }
 242 mailname2otherhostnamesdcloop() {
 243 # append mailname to other_hostnames, once. on fresh installations.
 244         if [ "${dc_mailname_in_oh}" != "true" ] ;then
 245                 db_get exim4/mailname
 246                 dc_mailname="$(printf '%s\n' "$RET"| stripwhitespace)"
 247                 db_get "exim4/dc_other_hostnames"
 248                 dc_other_hostnames="$(printf '%s\n' "$RET"| stripwhitespace)"
 249                 if [ -z "${dc_other_hostnames}" ] ; then
 250                         dc_other_hostnames="${dc_mailname}"
 251                 else
 252                         dc_other_hostnames="${dc_other_hostnames}:${dc_mailname}"
 253                 fi
 254                 db_set exim4/dc_other_hostnames "${dc_other_hostnames}"
 255                 db_fset "exim4/dc_other_hostnames" mailname true
 256                 dc_mailname_in_oh="true"
 257         fi
 258 }
 259 ##########
 260
 261
 262 # set to dummy value, so we can differ between unset vs (seen or set outside debconf)
 263 dc_local_interfaces=notset
 264
 265 db_settitle exim4/exim4-config-title
 266 db_get exim4/dc_eximconfig_configtype
 267 dc_eximconfig_configtype="$(convert_to_short "$RET")"
 268 db_get exim4/use_split_config
 269 dc_use_split_config="$RET"
 270 # Did we append mailname to other_hostnames yet?
 271 db_fget "exim4/dc_other_hostnames" mailname || true
 272 dc_mailname_in_oh="$RET"
 273
 274 if [ -e $UE4CC ] ; then
 275         . $UE4CC || true
 276         # on upgrades _once_ add mailname to other_hostnames
 277         if [ -n "$2" ] && [ "$1" = "configure" ] && \
 278                 [ "${dc_mailname_in_oh}" != "true" ] ; then
 279                         mailname2otherhostnames
 280         fi
 281         # set defaults using these values
 282         storevar2db
 283 else
 284         # If there are no debconf answers (running first time) and we are
 285         # making a cross upgrade from exim3, try to parse its config file
 286         # to seed debconf db.
 287         if [ "${dc_eximconfig_configtype}" = "" ] && [ -r /etc/exim/exim.conf ] ; then
 288                 # parse old configfile
 289                 #
 290                 # first do unfolding of lines continued with backslash, by:
 291                 # 1. remove comment lines
 292                 # 2. remove blank lines
 293                 # 3. remove "\<optional space><newline><optional space>"
 294                 exim3confunfolded="$(tempfile -p EX3)"
 295                 perl -e \
 296                 'undef $/;
 297                 while (<>) {
 298                         s/^[[:space:]]*#[^\n]*\n//mg;
 299                         s/^\n//mg;
 300                         s/\\[[:space:]]*\n[[:space:]]*//g;
 301                 } continue {
 302                         print or die "blah";
 303                 }' < /etc/exim/exim.conf > "$exim3confunfolded"
 304                 if parseexim3 "$exim3confunfolded" ; then
 305                         # set defaults using these values
 306                         storevar2db
 307                 fi
 308                 rm -f "$exim3confunfolded"
 309         fi
 310 fi
 311
 312 ## set up default values, we cannot do this in templates file because
 313 ## config script is called two times before update-exim4.conf.conf exists.
 314 [ "${dc_eximconfig_configtype}" = "" ] && \
 315         dc_eximconfig_configtype="local" && \
 316         db_set exim4/dc_eximconfig_configtype "$(convert_to_long ${dc_eximconfig_configtype})"
 317
 318
 319 if [ -e /etc/mailname ] ; then
 320         dc_mailname="$(head -n 1 /etc/mailname | stripwhitespace)" || true
 321         # store values
 322         db_set exim4/mailname "${dc_mailname}"
 323 else
 324         db_get exim4/mailname
 325         dc_mailname="$RET"
 326 fi
 327
 328 #Set default mailname
 329 if [ "${dc_mailname}" = "" ] ; then
 330         dc_mailname="$(hostname --fqdn 2>/dev/null)" || dc_mailname="$(hostname)" && \
 331         dc_mailname="$(printf '%s\n' "${dc_mailname}" | stripwhitespace)" && \
 332         db_set exim4/mailname "${dc_mailname}"
 333 fi
 334 fqdn="$(hostname --fqdn 2>/dev/null)" || fqdn=''
 335 db_subst exim4/dc_other_hostnames fqdn "$fqdn"
 336
 337 # initialize env-vars from debconf_db, if they haven't been set yet either by
 338 # parseexim3() or by sourcing $UE4CC
 339 if [ "${dc_readhost}" = "" ] ; then
 340         db_get exim4/dc_readhost
 341         dc_readhost="$RET"
 342 fi
 343 if [ "${dc_smarthost}" = "" ] ; then
 344         db_get exim4/dc_smarthost
 345         dc_smarthost="$RET"
 346 fi
 347 # Tricky! An empty value for this option is significant, therefore both
 348 # envvar and debconf-value default to "nonset"  instead of "", the
 349 # following line will only change then envvars value if the config-script
 350 # runs the second time without existing $UE4CC or
 351 # if the debconf-db has been preseeded by other means.
 352 if [ "${dc_local_interfaces}" = "notset" ]; then
 353         db_get exim4/dc_local_interfaces
 354         dc_local_interfaces="$RET"
 355 fi
 356 if [ "${dc_minimaldns}" = "" ] ; then
 357         db_get exim4/dc_minimaldns
 358         dc_minimaldns="$RET"
 359 fi
 360
 361 if [ "${dc_use_split_config}" = "" ] ; then
 362         if [ "${2}" = "" ] ; then
 363                 # fresh installation
 364                 db_set exim4/use_split_config false
 365                 dc_use_split_config="false"
 366         else
 367                 db_set exim4/use_split_config true
 368                 dc_use_split_config="true"
 369         fi
 370 fi
 371
 372 if [ "${dc_localdelivery}" = "" ] ; then
 373         db_get exim4/dc_localdelivery
 374         dc_localdelivery="$(convert_transport_to_short "$RET")"
 375 elif [ "$(convert_transport_to_long ${dc_localdelivery})" = "locally customized" ] ; then
 376         dc_localdelivery="custom"
 377 fi
 378
 379 db_version 2.0
 380
 381 db_capb backup
 382 # initial state
 383 STATE=1
 384 # state to continue for all values
 385 CONTSTATE=50
 386 # last valid state
 387 STATELIMIT=51
 388 EX4QUESTION=""
 389 while [ "$STATE" != 0 ] && [ "$STATE" -le "$STATELIMIT" ]; do
 390         case "$STATE" in
 391                 1)
 392                 # this is now empty
 393                 EX4QUESTION=""
 394                 BACKSTATE=$(($STATE - 1))
 395                 FORWSTATE=$(($STATE + 1))
 396                 ;;
 397
 398                 2)
 399                 EX4QUESTION="exim4/dc_eximconfig_configtype"
 400                 BACKSTATE=$(($STATE - 1))
 401                 FORWSTATE=$(($STATE + 1))
 402                 CONFIGTYPEQUESTION=2
 403                 db_input medium "$EX4QUESTION" || true
 404                 ;;
 405                 3)
 406                 EX4QUESTION=""
 407                 db_get exim4/dc_eximconfig_configtype
 408                 dc_eximconfig_configtype="$(convert_to_short "$RET")"
 409                 BACKSTATE=$(($STATE - 1))
 410                 case "${dc_eximconfig_configtype}" in
 411                         none)
 412                         # dont ask more questions
 413                         #FORWSTATE=$(($STATELIMIT + 1))
 414                         FORWSTATE=4
 415                         ;;
 416                         internet)
 417                         FORWSTATE=8
 418                         ;;
 419                         smarthost)
 420                         FORWSTATE=20
 421                         ;;
 422                         satellite)
 423                         FORWSTATE=30
 424                         ;;
 425                         local)
 426                         FORWSTATE=40
 427                         ;;
 428                         *)
 429                         # Should not happen. Break loop
 430                         FORWSTATE=$(($STATELIMIT + 1))
 431                         ;;
 432                 esac
 433                 ;;
 434
 435                 4)
 436                 # show additional info for type=none
 437                 EX4QUESTION="exim4/no_config"
 438                 BACKSTATE=$CONFIGTYPEQUESTION
 439                 FORWSTATE=$(($STATE + 1))
 440                 # same priority as configtype because of danger of loop?
 441                 db_input medium "$EX4QUESTION" || true
 442                 ;;
 443                 5)
 444                 EX4QUESTION=""
 445                 BACKSTATE=$CONFIGTYPEQUESTION
 446                 db_get exim4/no_config || true
 447                 if [ "$RET" = "false" ]; then
 448                         FORWSTATE=$CONFIGTYPEQUESTION
 449                 else
 450                         #break loop
 451                         FORWSTATE=$CONTSTATE
 452                 fi
 453                 ;;
 454
 455                 8)
 456                 # internet site
 457                 EX4QUESTION="exim4/mailname"
 458                 db_input medium "$EX4QUESTION" || true
 459                 BACKSTATE=$CONFIGTYPEQUESTION
 460                 FORWSTATE=$(($STATE + 1))
 461                 ;;
 462                 9)
 463                 EX4QUESTION="exim4/dc_local_interfaces"
 464                 BACKSTATE=$(($STATE - 1))
 465                 FORWSTATE=$(($STATE + 1))
 466                 if [ "${dc_local_interfaces}" = "notset" ] ; then
 467                         dc_local_interfaces=''
 468                         db_set exim4/dc_local_interfaces ''
 469                 fi
 470                 db_input medium "$EX4QUESTION" || true
 471                 ;;
 472                 10)
 473                 EX4QUESTION="exim4/dc_other_hostnames"
 474                 BACKSTATE=$(($STATE - 1))
 475                 FORWSTATE=$(($STATE + 1))
 476                 mailname2otherhostnamesdcloop
 477                 db_input medium "$EX4QUESTION" || true
 478                 ;;
 479                 11)
 480                 EX4QUESTION="exim4/dc_relay_domains"
 481                 db_input medium "$EX4QUESTION" || true
 482                 BACKSTATE=$(($STATE - 1))
 483                 FORWSTATE=$(($STATE + 1))
 484                 ;;
 485                 12)
 486                 EX4QUESTION="exim4/dc_relay_nets"
 487                 db_input medium "$EX4QUESTION" || true
 488                 BACKSTATE=$(($STATE - 1))
 489                 FORWSTATE=$(($STATE + 1))
 490                 ;;
 491                 13)
 492                 EX4QUESTION="exim4/dc_minimaldns"
 493                 BACKSTATE=$(($STATE - 1))
 494                 FORWSTATE=$(($STATE + 1))
 495                 db_input low "$EX4QUESTION" || true
 496                 ;;
 497                 14)
 498                 EX4QUESTION="exim4/dc_localdelivery"
 499                 BACKSTATE=$(($STATE - 1))
 500                 FORWSTATE=$CONTSTATE
 501                 # do not ask question if user has set a different transport
 502                 # than maildir or mailspool
 503                 if [ "${dc_localdelivery}" != "custom" ] ; then
 504                         db_input low "$EX4QUESTION" || true
 505                 fi
 506                 ;;
 507
 508
 509                 20)
 510                 # internet site with smarthost
 511                 EX4QUESTION="exim4/mailname"
 512                 db_input medium "$EX4QUESTION" || true
 513                 BACKSTATE=$CONFIGTYPEQUESTION
 514                 FORWSTATE=$(($STATE + 1))
 515                 ;;
 516                 21)
 517                 EX4QUESTION="exim4/dc_local_interfaces"
 518                 BACKSTATE=$(($STATE - 1))
 519                 FORWSTATE=$(($STATE + 1))
 520                 if [ "${dc_local_interfaces}" = "notset" ] ; then
 521                         dc_local_interfaces='127.0.0.1 ; ::1'
 522                         db_set exim4/dc_local_interfaces '127.0.0.1 ; ::1'
 523                 fi
 524                 db_input medium "$EX4QUESTION" || true
 525                 ;;
 526                 22)
 527                 EX4QUESTION="exim4/dc_other_hostnames"
 528                 BACKSTATE=$(($STATE - 1))
 529                 FORWSTATE=$(($STATE + 1))
 530                 mailname2otherhostnamesdcloop
 531                 db_input medium "$EX4QUESTION" || true
 532                 ;;
 533                 23)
 534                 EX4QUESTION="exim4/dc_relay_domains"
 535                 BACKSTATE=$(($STATE - 1))
 536                 FORWSTATE=$(($STATE + 1))
 537                 db_get "$EX4QUESTION" || true
 538                 dc_relay_domains="$RET"
 539                 # Only ask for relay domains if non-empty, since this only
 540                 # really works for internet site hosts. (See comment near
 541                 # smarthost router definition in configuration file.)
 542                 if [ "${dc_relay_domains}" != "" ] ; then
 543                         db_input medium "$EX4QUESTION" || true
 544                 fi
 545                 ;;
 546                 24)
 547                 EX4QUESTION="exim4/dc_relay_nets"
 548                 db_input medium "$EX4QUESTION" || true
 549                 BACKSTATE=$(($STATE - 1))
 550                 FORWSTATE=$(($STATE + 1))
 551                 ;;
 552                 25)
 553                 EX4QUESTION="exim4/dc_smarthost"
 554                 if [ "${dc_smarthost}" = "" ] ; then
 555                         # default to mail.mailname
 556                         dc_smarthost="mail.${dc_mailname}"
 557                         db_set exim4/dc_smarthost "${dc_smarthost}"
 558                 fi
 559                 db_input medium "$EX4QUESTION" || true
 560                 BACKSTATE=$(($STATE - 1))
 561                 FORWSTATE=$(($STATE + 1))
 562                 ;;
 563                 26)
 564                 EX4QUESTION="exim4/hide_mailname"
 565                 BACKSTATE=$(($STATE - 1))
 566                 FORWSTATE=$(($STATE + 1))
 567                 db_get exim4/mailname || true
 568                 dc_mailname="$RET"
 569                 db_get exim4/dc_other_hostnames || true
 570                 dc_other_hostnames="$RET"
 571                 db_subst exim4/hide_mailname mailname ${dc_mailname}
 572                 db_subst exim4/hide_mailname dc_other_hostnames \
 573                         ${dc_other_hostnames}
 574                db_get $EX4QUESTION || true
 575                dc_hide_mailname="$RET"
 576                 if [ "${dc_hide_mailname}" = "" ] ; then
 577                         dc_hide_mailname='false'
 578                         db_set exim4/hide_mailname "${dc_hide_mailname}"
 579                 fi
 580                 db_input medium "$EX4QUESTION" || true
 581                 ;;
 582                 27)
 583                 EX4QUESTION="exim4/dc_readhost"
 584                 BACKSTATE=$(($STATE - 1))
 585                 FORWSTATE=$(($STATE + 1))
 586                 db_get exim4/hide_mailname
 587                 dc_hide_mailname="$RET"
 588                 if [ "${dc_hide_mailname}" = "true" ];then
 589                         if [ "${dc_readhost}" = "" ] ; then
 590                                 # default to mailname
 591                                 dc_readhost="${dc_mailname}"
 592                                 db_set exim4/dc_readhost "${dc_readhost}"
 593                         fi
 594                         db_input medium "$EX4QUESTION" || true
 595                 else
 596                         EX4QUESTION=""
 597                 fi
 598                 ;;
 599                 28)
 600                 EX4QUESTION="exim4/dc_minimaldns"
 601                 BACKSTATE=$(($STATE - 1))
 602                 FORWSTATE=$(($STATE + 1))
 603                 db_input low "$EX4QUESTION" || true
 604                 ;;
 605                 29)
 606                 EX4QUESTION="exim4/dc_localdelivery"
 607                 BACKSTATE=$(($STATE - 1))
 608                 FORWSTATE=$CONTSTATE
 609                 # do not ask question if user has set a different transport
 610                 # than maildir or mailspool
 611                 if [ "${dc_localdelivery}" != "custom" ] ; then
 612                         db_input low "$EX4QUESTION" || true
 613                 fi
 614                 ;;
 615
 616                 30)
 617                 # satellite
 618                 EX4QUESTION="exim4/mailname"
 619                 db_input medium "$EX4QUESTION" || true
 620                 BACKSTATE=$CONFIGTYPEQUESTION
 621                 FORWSTATE=$(($STATE + 1))
 622                 ;;
 623                 31)
 624                 EX4QUESTION="exim4/dc_local_interfaces"
 625                 BACKSTATE=$(($STATE - 1))
 626                 FORWSTATE=$(($STATE + 1))
 627                 if [ "${dc_local_interfaces}" = "notset" ] ; then
 628                         dc_local_interfaces='127.0.0.1 ; ::1'
 629                         db_set exim4/dc_local_interfaces '127.0.0.1 ; ::1'
 630                 fi
 631                 db_input medium "$EX4QUESTION" || true
 632                 ;;
 633                 32)
 634                 EX4QUESTION="exim4/dc_other_hostnames"
 635                 BACKSTATE=$(($STATE - 1))
 636                 FORWSTATE=$(($STATE + 1))
 637                 mailname2otherhostnamesdcloop
 638                 db_input medium "$EX4QUESTION" || true
 639                 ;;
 640                 33)
 641                 EX4QUESTION="exim4/dc_readhost"
 642                 BACKSTATE=$(($STATE - 1))
 643                 FORWSTATE=$(($STATE + 1))
 644                 # satellite requires a mail-hub, no use asking whether there
 645                 # is one.
 646                 db_set exim4/hide_mailname "true"
 647                 dc_hide_mailname="true"
 648                 if [ "${dc_readhost}" = "" ] ; then
 649                         # default to domain of mailname
 650                         dc_readhost="${dc_mailname}"
 651                         db_set exim4/dc_readhost "${dc_readhost}"
 652                 fi
 653                 db_input medium "$EX4QUESTION" || true
 654                 ;;
 655                 34)
 656                 EX4QUESTION="exim4/dc_smarthost"
 657                 BACKSTATE=$(($STATE - 1))
 658                 FORWSTATE=$(($STATE + 1))
 659                 db_get exim4/dc_readhost
 660                 dc_readhost="$RET"
 661                 if [ "${dc_smarthost}" = "" ] ; then
 662                         # default to read_host
 663                         dc_smarthost="${dc_readhost}"
 664                         db_set exim4/dc_smarthost "${dc_smarthost}"
 665                 fi
 666                 db_input medium "$EX4QUESTION" || true
 667                 ;;
 668                 35)
 669                 EX4QUESTION="exim4/dc_relay_domains"
 670                 BACKSTATE=$(($STATE - 1))
 671                 FORWSTATE=$(($STATE + 1))
 672                 db_get "$EX4QUESTION" || true
 673                 dc_relay_domains="$RET"
 674                 # Only ask for relay domains if non-empty, since this only
 675                 # really works for internet site hosts. (See comment near
 676                 # smarthost router definition in configuration file.)
 677                 if [ "${dc_relay_domains}" != "" ] ; then
 678                         db_input medium "$EX4QUESTION" || true
 679                 fi
 680                 ;;
 681                 36)
 682                 EX4QUESTION=""
 683                 BACKSTATE=$(($STATE - 1))
 684                 FORWSTATE=$(($STATE + 1))
 685                 # satellite-system! Only ask for relay_nets if they are
 686                 # nonempty - we cannot distinguish whether they were set outside debconf
 687                 # or whether the user switched dc_eximconfig_configtype
 688                 db_get exim4/dc_relay_nets || true
 689                 dc_relay_nets="$RET"
 690                 if [ "${dc_relay_nets}" != "" ] ; then
 691                         db_input medium exim4/dc_relay_nets || true
 692                         FORWSTATE=$(($STATE + 1))
 693                 fi
 694                 ;;
 695                 37)
 696                 EX4QUESTION="exim4/dc_minimaldns"
 697                 BACKSTATE=$(($STATE - 1))
 698                 FORWSTATE=$(($STATE + 1))
 699                 db_input low "$EX4QUESTION" || true
 700                 ;;
 701                 38)
 702                 EX4QUESTION="exim4/dc_localdelivery"
 703                 BACKSTATE=$(($STATE - 1))
 704                 FORWSTATE=$CONTSTATE
 705                 # Only ask question if it is set to a value that is both supported
 706                 # by debconf (maildir_home and mail_spool) and is not set to the
 707                 # default value (maildir_home) since this is only used for
 708                 # real-*.
 709                 if [ "${dc_localdelivery}" = "maildir_home" ] ; then
 710                         db_input low "$EX4QUESTION" || true
 711                 fi
 712                 ;;
 713
 714                 40)
 715                 # local mail only
 716                 EX4QUESTION="exim4/mailname"
 717                 db_input medium "$EX4QUESTION" || true
 718                 BACKSTATE=$CONFIGTYPEQUESTION
 719                 FORWSTATE=$(($STATE + 1))
 720                 ;;
 721                 41)
 722                 EX4QUESTION=""
 723                 BACKSTATE=$(($STATE - 1))
 724                 FORWSTATE=$(($STATE + 1))
 725                 if [ "${dc_local_interfaces}" = "notset" ] ; then
 726                         dc_local_interfaces='127.0.0.1 ; ::1'
 727                         db_set exim4/dc_local_interfaces '127.0.0.1 ; ::1'
 728                 fi
 729                 db_input medium exim4/dc_local_interfaces || true
 730                 ;;
 731
 732                 42)
 733                 EX4QUESTION="exim4/dc_other_hostnames"
 734                 BACKSTATE=$(($STATE - 1))
 735                 FORWSTATE=$(($STATE + 1))
 736                 mailname2otherhostnamesdcloop
 737                 db_input medium "$EX4QUESTION" || true
 738                 ;;
 739
 740                 43)
 741                 EX4QUESTION=""
 742                 BACKSTATE=$(($STATE - 1))
 743                 FORWSTATE=$(($STATE + 1))
 744                 # local mail only -system! Only ask for relay_nets/relay_domains if they are
 745                 # nonempty - we cannot distinguish whether they were set outside debconf
 746                 # or whether the user switched dc_eximconfig_configtype
 747                 db_get exim4/dc_relay_nets || true
 748                 dc_relay_nets="$RET"
 749                 db_get exim4/dc_relay_domains || true
 750                 dc_relay_domains="$RET"
 751
 752                 if [ "${dc_relay_nets}" != "" ] ; then
 753                         db_input medium exim4/dc_relay_nets || true
 754                 fi
 755                 if [ "${dc_relay_domains}" != "" ] ; then
 756                         db_input medium exim4/dc_relay_domains || true
 757                 fi
 758                 ;;
 759                 44)
 760                 EX4QUESTION="exim4/dc_minimaldns"
 761                 BACKSTATE=$(($STATE - 1))
 762                 FORWSTATE=$(($STATE + 1))
 763                 db_input low "$EX4QUESTION" || true
 764                 ;;
 765                 45)
 766                 EX4QUESTION="exim4/dc_localdelivery"
 767                 BACKSTATE=$(($STATE - 1))
 768                 FORWSTATE=$CONTSTATE
 769                 # do not ask question if user has set a different transport
 770                 # than maildir or mailspool
 771                 if [ "${dc_localdelivery}" != "custom" ] ; then
 772                         db_input low "$EX4QUESTION" || true
 773                 fi
 774                 ;;
 775                 50)
 776                 EX4QUESTION="exim4/use_split_config"
 777                 BACKSTATE=$PREVSTATE
 778                 FORWSTATE=$(($STATELIMIT + 1))
 779                 db_input medium "$EX4QUESTION" || true
 780                 ;;
 781         esac
 782         PREVSTATE=$STATE
 783         if db_go; then
 784                 STATE=$FORWSTATE
 785         else
 786                 STATE=$BACKSTATE
 787         fi
 788 done
 789 if  [ "$STATE" = 0 ] ; then
 790         # User pressed back on the first question, go back to previous
 791         # package if run by base-config 2.0. #222773.
 792         exit 30
 793 fi
 794
 795 # make sure dc_local_interfaces is set to sane value
 796 if [ "${dc_local_interfaces}" = "notset" ] ; then
 797         dc_local_interfaces=''
 798         db_set exim4/dc_local_interfaces ''
 799 fi
 800
 801 if [ ! -e /etc/aliases ] || \
 802         ! grep -q '^root:[[:space:]]*[[:alnum:]]' /etc/aliases ; then
 803         db_get exim4/dc_postmaster
 804         if [ -z "$RET" ] && db_get passwd/username; then
 805                 db_set exim4/dc_postmaster "${RET}"
 806         fi
 807         db_input medium exim4/dc_postmaster || true
 808         db_go || true
 809 fi
 810
 811 db_get exim4/dc_postmaster || true
 812 dc_postmaster="$(printf '%s\n' "$RET" | stripwhitespace)"
 813
 814 # this has been commented out for a long time, remove by the end of 2007
 815 # if [ "${dc_eximconfig_configtype}" = "satellite" ] || [ "${dc_eximconfig_configtype}" = "local" ] ; then
 816 #       # reset dc_relay_domains dc_relay_nets and dc_other_hostnames
 817 #       db_set exim4/dc_relay_domains ""
 818 #       db_set exim4/dc_relay_nets ""
 819 #       db_set exim4/dc_other_hostnames ""
 820 # fi