debian/bitlbee-common.postinst

   1 #!/bin/sh
   2
   3 set -e
   4
   5 . /usr/share/debconf/confmodule
   6
   7 db_get bitlbee/serveport
   8 PORT="$RET"
   9
  10 CONFDIR=/var/lib/bitlbee/
  11
  12 update-rc.d bitlbee defaults > /dev/null 2>&1
  13
  14 ## Load default option. Don't want to put this in debconf (yet?)
  15 BITLBEE_OPTS=-F
  16 BITLBEE_DISABLED=0
  17 BITLBEE_UPGRADE_DONT_RESTART=0
  18 [ -r /etc/default/bitlbee ] && . /etc/default/bitlbee
  19
  20 if [ "$BITLBEE_DISABLED" = "0" ] && which update-inetd > /dev/null 2> /dev/null &&
  21    ( expr "$2" : '0\..*' > /dev/null || expr "$2" : '1\.0\..*' > /dev/null ); then
  22         ## Make sure the inetd entry is gone (can still be there from a
  23         ## previous version.
  24         update-inetd --remove '.*/usr/sbin/bitlbee'
  25         if grep -q /usr/sbin/bitlbee /etc/inetd.conf 2> /dev/null; then
  26                 # Thanks for breaking update-inetd! (bugs.debian.org/311111)
  27                 # I hope that it works at least with xinetd, because this
  28                 # emergency hack doesn't:
  29                 perl -pi -e 's:^[^#].*/usr/sbin/bitlbee$:## Now using daemon mode\: # $&:' /etc/inetd.conf
  30                 killall -HUP inetd || true
  31         fi
  32 fi
  33
  34 cat<<EOF>/etc/default/bitlbee
  35 ## /etc/default/bitlbee: Auto-generated/updated script.
  36 ##
  37 ## If running in (fork)daemon mode, listen on this TCP port.
  38 BITLBEE_PORT="$PORT"
  39
  40 ## Use single-process or forking daemon mode? Can't be changed from debconf,
  41 ## but maintainer scripts will save your changes here.
  42 BITLBEE_OPTS="$BITLBEE_OPTS"
  43
  44 ## In case you want to stick with inetd mode (or if you just want to disable
  45 ## the init scripts for some other reason), you can disable the init script
  46 ## here. (Just set it to 1)
  47 BITLBEE_DISABLED=$BITLBEE_DISABLED
  48
  49 ## As a server operator, you can use the RESTART command to restart only the
  50 ## master process while keeping all the child processes and their IPC
  51 ## connections. By enabling this, the maintainer scripts won't restart
  52 ## BitlBee during upgrades so you can restart the master process by hand.
  53 BITLBEE_UPGRADE_DONT_RESTART=$BITLBEE_UPGRADE_DONT_RESTART
  54 EOF
  55
  56 ## Bye-bye DebConf, we don't need you anymore.
  57 db_stop
  58
  59 ## Restore the helpfile in case we weren't upgrading but just reconfiguring:
  60 if [ -e /usr/share/bitlbee/help.upgrading ]; then
  61         if [ -e /usr/share/bitlbee/help.txt ]; then
  62                 rm -f /usr/share/bitlbee/help.upgrading
  63         else
  64                 mv /usr/share/bitlbee/help.upgrading /usr/share/bitlbee/help.txt
  65         fi
  66 fi
  67
  68 # The official way to check if we're upgrading is to check if $2 is
  69 # non-empty. However, previous versions of BitlBee didn't have a
  70 # bitlbee-common package so in that case the var will also be empty.
  71 # Instead, check if the port is in use (if netstat is available). This
  72 # works since the debconf code will pick a free port on new installs.
  73 if [ "$BITLBEE_UPGRADE_DONT_RESTART" != "1" ]; then
  74         unset IS_UPGRADE
  75         if which netstat > /dev/null 2> /dev/null; then
  76                 netstat -an | grep -q :$PORT\\b.*LISTEN && IS_UPGRADE=1
  77         else
  78                 [ -n "$2" ] && IS_UPGRADE=1
  79         fi
  80         if [ -n "$IS_UPGRADE" ]; then
  81                 invoke-rc.d bitlbee restart
  82         fi
  83 fi
  84
  85 ## If we're upgrading, we'll probably skip this next part
  86 if [ -d $CONFDIR ] && chown -R bitlbee: $CONFDIR; then
  87         echo 'BitlBee (probably) already installed, skipping user/configdir installation'
  88         exit 0
  89 fi
  90
  91 adduser --system --group --disabled-login --disabled-password --home /var/lib/bitlbee/ bitlbee
  92 chmod 700 /var/lib/bitlbee/
  93
  94 ## Can't do this in packaging phase: Don't know the UID yet. Access to
  95 ## the file should be limited, now that it stores passwords. Added
  96 ## --group later for a little more security, but have to see if I can
  97 ## apply this change to existing installations on upgrades. Will think
  98 ## about that later.
  99 if getent group bitlbee > /dev/null; then
 100         chmod 640 /etc/bitlbee/bitlbee.conf
 101         chown root:bitlbee /etc/bitlbee/bitlbee.conf
 102 else
 103         chmod 600 /etc/bitlbee/bitlbee.conf
 104         chown bitlbee /etc/bitlbee/bitlbee.conf
 105 fi
 106
 107 if [ -z "$2" ]; then
 108         invoke-rc.d bitlbee start
 109 fi