debian/exim4-base.postinst

   1 #!/bin/sh
   2
   3 set -e
   4 . /usr/share/debconf/confmodule
   5
   6 if [ -n "$EX4DEBUG" ]; then
   7   echo "now debugging $0 $@"
   8   set -x
   9 fi
  10
  11 db_version 2.0
  12
  13 BDBVERSION=5.3
  14
  15 case "$1" in
  16   configure)
  17
  18         if ! getent passwd Debian-exim > /dev/null ; then
  19           echo 'Adding system-user for exim (v4)' 1>&2
  20           adduser --system --group --quiet --home /var/spool/exim4 \
  21             --no-create-home --disabled-login --force-badname Debian-exim
  22         fi
  23         # Create directories for log etc
  24         # install also fixes permissions.
  25         install -d -oDebian-exim -gadm -m2750 /var/log/exim4
  26         install -d -oDebian-exim -gDebian-exim -m750 /run/exim4
  27         install -d -oDebian-exim -gDebian-exim -m750 /var/spool/exim4
  28         install -d -oDebian-exim -gDebian-exim -m750 /var/spool/exim4/db \
  29                 /var/spool/exim4/input /var/spool/exim4/msglog
  30
  31         # fix permissions on upgrades
  32         if dpkg --compare-versions "$2" le "4.30-1" ; then
  33                 find /var/log/exim4 /var/spool/exim4 -group mail \
  34                         \( -type f -or -type d \) -print0 | \
  35                         xargs -0r chgrp Debian-exim
  36                 find /var/log/exim4 /var/spool/exim4 -user mail \
  37                         \( -type f -or -type d \) -print0 | \
  38                         xargs -0r chown Debian-exim
  39         fi
  40
  41         # Paranoia check: On any db upgrade throw away hints
  42         # databases.
  43         if test -r /var/lib/exim4/berkeleydbvers.txt ; then
  44                 OLDBDB=`head -n1 /var/lib/exim4/berkeleydbvers.txt`
  45         else
  46                 OLDBDB="unknown"
  47         fi
  48         if [ "$BDBVERSION" != "$OLDBDB" ] ; then
  49                 echo exim: DB upgrade, deleting hints-db 1>&2
  50                 rm -f /var/spool/exim4/db/misc-* /var/spool/exim4/db/wait-* \
  51                         /var/spool/exim4/db/callout* \
  52                         /var/spool/exim4/db/retry* \
  53                         /var/spool/exim4/db/ratelimit* \
  54                         /var/spool/exim4/db/__db.retry \
  55                         /var/spool/exim4/db/__db.misc* \
  56                         /var/spool/exim4/db/__db.callout \
  57                         /var/spool/exim4/db/__db.ratelimit \
  58                         /var/spool/exim4/db/__db.wait* \
  59                         /var/spool/exim4/db/log.*
  60                 echo "$BDBVERSION" > /var/lib/exim4/berkeleydbvers.txt
  61         fi
  62         # Check that db files are readable by this Exim's db library
  63         dbfiles=""
  64         for f in /var/spool/exim4/db/misc-* /var/spool/exim4/db/wait-* \
  65                  /var/spool/exim4/db/callout* /var/spool/exim4/db/retry* \
  66                  /var/spool/exim4/db/ratelimit* ; do
  67             if [ -f "$f" ]; then
  68                 if echo $f | grep \.lockfile\$ >/dev/null 2>&1; then
  69                     : # ignore lock files
  70                 else
  71                     dbfiles="$dbfiles $(basename $f)"
  72                 fi
  73             fi
  74         done
  75         for dbfile in $dbfiles; do
  76             if exim_dumpdb /var/spool/exim4 $dbfile >/dev/null 2>&1; then
  77                 : # File OK
  78             else
  79                 echo "Resetting invalid $dbfile hints db" 1>&2
  80                 rm -f /var/spool/exim4/db/$dbfile \
  81                         /var/spool/exim4/db/$dbfile.* \
  82                         /var/spool/exim4/db/__db.${dbfile}.* \
  83                         /var/spool/exim4/db/log.*
  84             fi
  85         done
  86
  87        if [ -x "/etc/init.d/exim4" ]; then
  88            update-rc.d exim4 defaults >/dev/null
  89        fi
  90
  91         # honor dpkg-statoverride settings for files not managed with dpkg
  92         for pat in /var/\*/exim4 /var/\*/exim4/\*; do
  93                 [ $EX4DEBUG ] && eval echo "evaluate statoverride $pat"
  94                 eval dpkg-statoverride --list $pat | while read USER GROUP MODE FILE; do
  95                         [ $EX4DEBUG ] && echo "statoverride $USER $GROUP $MODE $FILE"
  96                         chown ${USER}:${GROUP} $FILE
  97                         chmod $MODE $FILE
  98                 done
  99         done
 100         ;;
 101 esac
 102
 103 #DEBHELPER#