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#!/bin/sh -e
# Debian Postfix postinst
# LaMont Jones <lamont@debian.org>
# Based on debconf code by Colin Walters <walters@cis.ohio-state.edu>,
# and John Goerzen <jgoerzen@progenylinux.com>.
# Use debconf.
. /usr/share/debconf/confmodule
CHROOT=/var/spool/postfix
config_directory="/etc/postfix" # make variable expansion easier...
. /usr/share/postfix/postinst.functions
set_maildrop_perms() {
MAILDROP=${CHROOT}/maildrop
SCRIPT=/etc/postfix/postfix-script
POSTDROP=/usr/sbin/postdrop
mkdir -p $MAILDROP
if ! chown postfix:postdrop $MAILDROP 2>/dev/null; then
addgroup --system postdrop
chown postfix:postdrop $MAILDROP
fi
dpkg-statoverride --remove $POSTDROP >/dev/null 2>&1 || true
dpkg-statoverride --remove /var/spool/postfix/public >/dev/null 2>&1 || true
dpkg-statoverride --remove /usr/sbin/postqueue >/dev/null 2>&1 || true
dpkg-statoverride --update --add root postdrop 02555 $POSTDROP
dpkg-statoverride --update --add postfix postdrop 02710 /var/spool/postfix/public
dpkg-statoverride --update --add root postdrop 02555 /usr/sbin/postqueue
chmod 1730 $MAILDROP
}
myfqdn() {
myhostname=$(hostname --fqdn 2>/dev/null || echo "")
# If we don't have a name with a dot (which includes ""), then we have work.
if [ $myhostname = ${myhostname%.*} ]; then
# If it's empty, and we have /etc/hostname, try that.
if [ -z $myhostname ] && [ -r /etc/hostname ]; then
myhostname=$(cat /etc/hostname)
fi
# If we are still lacking a domain component, then try resolv.conf.
if [ $myhostname = ${myhostname%.*} ]; then
if [ -f /etc/resolv.conf ]; then
# The resolver uses the last one found, and ignores the rest
mydom=$(sed -n 's/^search[[:space:]]*\([^[:space:]]*\).*/\1/p;s/^domain[[:space:]]*\([^[:space:]]*\).*/\1/p' /etc/resolv.conf | tail -1)
myhostname="$myhostname${mydom:+.$mydom}"
else
myhostname="$myhostname.UNKNOWN"
fi
fi
fi
echo $myhostname
}
fset_all_changed() {
db_fset postfix/main_mailer_type changed $1
db_fset postfix/root_address changed $1
db_fset postfix/destinations changed $1
db_fset postfix/mailname changed $1
db_fset postfix/relayhost changed $1
db_fset postfix/chattr changed $1
db_fset postfix/mynetworks changed $1
db_fset postfix/procmail changed $1
db_fset postfix/mailbox_limit changed $1
db_fset postfix/recipient_delim changed $1
db_fset postfix/protocols changed $1
}
set_postconf() {
CHANGES=true
postconf -e "$@"
}
get_postconf() {
postconf -h "$@"
}
makedir() {
if [ ! -d $1 ]; then
mkdir $1
fi
chown $2 $1 && chmod $3 $1
}
convert_dbs() {
# get all of the hash and btree maps.
maps=$(postconf -h | sed -e 's/[,[:space:]]/\
/g' -e 's/^proxy://' -e '/:/p' | sort -u )
for i in $maps; do
case $i in
hash:*|btree:*)
f=${i#*:}.db
if [ -f $f ]; then
echo "attempting conversion of $i"
echo " saving old db in ${f}.db3"
cp $f ${f}.db3
postmap -A $i
fi
;;
esac
done
}
fix_master() {
echoed=""
# Need to handle some changes in services.
MASTER=/etc/postfix/master.cf
if grep -qE '^cleanup[[:space:]]+unix[[:space:]]+-' ${MASTER}; then
echo "in master.cf:"; echoed=y
echo " forcing pickup=unprivileged, cleanup=public, flush=public"
sed 's/^\(cleanup[[:space:]]*unix[[:space:]]*\)-/\1n/
s/^\(flush[[:space:]]*unix[[:space:]]*\)-/\1n/
s/^\(pickup[[:space:]]*fifo[[:space:]]*.[[:space:]]*\)n/\1-/
' ${MASTER} > ${MASTER}.$$
mv ${MASTER}.$$ ${MASTER}
fi
while read line; do
serv=${line%% *}
if ! grep -qE "^${serv}[[:space:]]" ${MASTER}; then
[ -n "$echoed" ] || echo "in master.cf:"; echoed=y
echo " adding missing entry for ${serv} service"
echo "$line" >> ${MASTER}
fi
done << @@EOF@@
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
tlsmgr unix - - - 1000? 1 tlsmgr
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache
discard unix - - - - - discard
retry unix - - - - - error
@@EOF@@
if ! grep -qE '^relay[[:space:]]' ${MASTER}; then
[ -n $echoed ] || echo "in master.cf:"; echoed=y
echo " adding missing entry for relay service"
echo "relay unix - - n - - smtp -o smtp_fallback_relay= " \
>> ${MASTER}
echo "# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5" \
>> ${MASTER}
fi
if grep -qE '^tlsmgr[[:space:]]*fifo' ${MASTER}; then
sed '/^tlsmgr/s/fifo/unix/' ${MASTER} > ${MASTER}.$$
mv ${MASTER}.$$ ${MASTER}
fi
}
add_root_alias() {
db_get postfix/root_address && root_addr="$RET"
ret=$(echo $RET | tr 'A-Z' 'a-z')
if [ "$ret" != "none" ] && [ -n "$ret" ] ; then
echo "adding root: $RET alias"
echo "root: $RET" >> /etc/aliases
fi
}
umask 022
# postinst processing
case "$1" in
configure)
OLDVERSION="$2"
# see below
;;
abort-upgrade)
fix_master
exit 0
;;
abort-remove|abort-deconfigure)
exit 0
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
CHANGES=""
NEWALIASES="y"
update-rc.d postfix defaults > /dev/null
ldconfig
dpkg-divert --package postfix --remove --rename \
--divert /usr/share/man/man8/smtpd.real.8.gz \
/usr/share/man/man8/smtpd.8.gz > /dev/null 2>&1
# handle sasl-smtp[d] -> smtp[d] change. oops..
if [ -d /etc/postfix/sasl ]; then
cd /etc/postfix/sasl
for file in smtp smtpd; do
if [ -r sasl-${file}.conf ] && [ ! -r ${file}.conf ]; then
ln -s sasl-${file}.conf ${file}.conf
fi
done
fi
cd ${CHROOT}
# make sure that the postfix user exists. Simplest portable way to check is to
# chown something, so we'll create the directories that we need here.
makedir private root:root 700
chgrp postfix private 2>/dev/null ||
addgroup --system postfix
chown postfix private 2>/dev/null ||
adduser --system --home ${CHROOT} --no-create-home --disabled-password --ingroup postfix postfix
# need to have postfix in the right group, but old revs do it wrong..
if [ "$(id -gn postfix)" != "postfix" ]; then
usermod -g postfix postfix
fi
chown postfix:root private
db_fget postfix/chattr changed
if [ "$RET" = "true" ]; then
db_get postfix/chattr && chat="$RET"
echo "setting synchronous mail queue updates: $chat"
if [ "$chat" = "true" ]; then
chat="+S"
else
chat="-S"
fi
fi
makedir pid root:root 755
makedir public postfix:root 755
for dir in incoming active bounce defer deferred flush saved corrupt; do
makedir ${dir} postfix:root 700
if [ -n "$chat" ]; then
chattr $chat $dir 2>/dev/null || true
fi
done
cd /etc/postfix
if [ ! -f dynamicmaps.cf ]; then
echo "Creating /etc/postfix/dynamicmaps.cf"
while read row; do
# Keep the comment lines.
if [ "X${row#\#}" != "X${row}" ]; then
echo "$row"
else
# If the dictionary is on the system, add the row. Subsequent
# installs will add the record themselves.
dict=${row%%[[:space:]]*}
if test -f /usr/lib/postfix/postfix-${dict}.so.1.0.1; then
echo "$row"
fi
fi
done < /usr/share/postfix/dynamicmaps.cf > dynamicmaps.cf
chmod 644 dynamicmaps.cf
else
# Add sqlite if we were told we could in preinst.
if [ -f /var/spool/postfix/sqlite_addition ]; then
addmap sqlite
rm -f /var/spool/postfix/sqlite_addition
fi
if [ -f /var/spool/postfix/dynamicmaps_3.0_transition ]; then
echo "Updating dynamicmaps.cf"
sed -i '/^tcp[[:space:]]/d; s/\/usr\/lib\/postfix\/dict_\([a-z]*\).so/postfix-\1.so.1.0.1/' dynamicmaps.cf
rm -f /var/spool/postfix/dynamicmaps_3.0_transition
fi
fi
db_get postfix/main_mailer_type && mailer="$RET"
[ -f master.cf ] || cp /usr/share/postfix/master.cf.dist master.cf
if [ "$mailer" != "No configuration" ]; then # [
if [ -f main.cf ]; then
NEWCONF=""
else
cp /usr/share/postfix/main.cf.debian main.cf
if [ -f /etc/ssl/private/ssl-cert-snakeoil.key ]; then
cat /usr/share/postfix/main.cf.tls >> main.cf
fi
postconf -e "smtpd_relay_restrictions=permit_mynetworks permit_sasl_authenticated defer_unauth_destination"
NEWCONF=yes
fi
# This is the braindead local-only master.cf from elsewhen
# we now deal with this in main.cf, so mark the mailer_type changed.
md5sum=$(md5sum /etc/postfix/master.cf)
if [ "${md5sum%% *}" = "fadb677a071ea2851cc2b8a12345823d" ]; then
cp /usr/share/postfix/master.cf.dist master.cf
db_fset postfix/main_mailer_type changed true
fi
fi # !No configuration ]
# cleanup from braindamage.
if [ -d /etc/postfix/maildrop ]; then
rmdir /etc/postfix/maildrop 2>/dev/null
fi
set_maildrop_perms postdrop
if [ -f /var/spool/postfix/db-upgrade ]; then
rm /var/spool/postfix/db-upgrade
db_get postfix/db_upgrade_warning && convert="$RET"
if [ "$convert" = "true" ]; then
convert_dbs
else
echo "DB files not converted, Postfix restart may fail."
fi
fi
if [ "$mailer" != "No configuration" ]; then # [
myhostname=$(myfqdn)
mydomain=${myhostname#*.}
# Fix master.cf for compat changes in 3.0. See Debian bug #816172
# Also fix myhostname if needed.
for dir in /etc/postfix $(postconf -hn multi_instance_directories); do
hname=$(postconf -h -c "$dir" myhostname)
if [ ${hname} = ${hname%.*} ]; then
echo "setting myhostname=$myhostname in ${dir}"
set_postconf -c "$dir" myhostname=$myhostname
fi
SRV=$(postconf -c "$dir" -F '*/*/chroot'| sed -n '/ = -$/s/ =.*$//p')
for SERVICE in $SRV; do
echo "setting explicit chroot on ${dir}:$SERVICE"
set_postconf -F -c "$dir" $SERVICE=y
done
done
if [ -n "$NEWCONF" ]; then
fset_all_changed true
alias_maps=hash:/etc/aliases
nis_status=$(dpkg -l nis 2>/dev/null | sed -n '$p')
if [ "X$nis_status" != "X${nis_status#i}" ] && [ -x /usr/bin/ypcat ] &&
/usr/bin/ypcat mail.aliases >/dev/null 2>&1; then
alias_maps="hash:/etc/aliases, nis:mail.aliases"
cat << EOF
It appears that you have an NIS map for mail aliases; using that in
addition to /etc/aliases.
EOF
fi
if [ -n "$myhostname" ]; then
echo "setting myhostname: $myhostname"
set_postconf "myhostname=$myhostname"
fi
echo "setting alias maps"
set_postconf "alias_maps=$alias_maps"
echo "setting alias database"
set_postconf "alias_database=hash:/etc/aliases"
else
if [ -f /var/spool/postfix/mydomain-upgrade ]; then
rm -f /var/spool/postfix/mydomain-upgrade
db_get postfix/mydomain_upgrade && upgrade="$RET"
if [ "$upgrade" = "true" ]; then
echo "setting mydomain=$mydomain"
set_postconf "mydomain=$mydomain"
fi
fi
fi
db_fget postfix/mailname changed
if [ "$RET" = "true" ]; then
db_get postfix/mailname && mailname="$RET"
lcmailname="$(echo $RET| tr 'A-Z' 'a-z')"
if [ "X$lcmailname" = "X==default==" ]; then
mailname=$(hostname --fqdn 2>/dev/null || echo localdomain)
fi
lcmailname="$(echo $mailname| tr 'A-Z' 'a-z')"
if [ -f /etc/mailname ] && [ "X$(tr 'A-Z' 'a-z' < /etc/mailname)" = "X$lcmailname" ]; then
MAILNAME=""
else
MAILNAME=yes
fi
if [ "X${lcmailname}" = Xubuntu.com ] || [ "X${lcmailname}" = Xdebian.org ]; then
echo "refusing to set mailname to ${mailname}."
elif [ "X${mailname%.*}" != "X${mailname}" ]; then
if [ -n "$MAILNAME" ]; then
echo "changing /etc/mailname to $mailname"
echo $mailname > /etc/mailname
fi
echo "setting myorigin"
set_postconf "myorigin=/etc/mailname"
else
echo "mailname is not a fully qualified domain name. Not changing /etc/mailname."
fi
fi
db_fget postfix/destinations changed
if [ "$RET" = "true" ]; then
db_get postfix/destinations && destinations="$RET"
echo "setting destinations: $destinations"
set_postconf "mydestination=$destinations"
fi
db_fget postfix/relayhost changed
if [ "$RET" = "true" ]; then
db_get postfix/relayhost && relayhost="$RET"
echo "setting relayhost: $relayhost"
set_postconf "relayhost=$relayhost"
fi
db_fget postfix/mynetworks changed
if [ "$RET" = "true" ]; then
db_get postfix/mynetworks && mynetworks="$RET"
if [ -z "$RET" ]; then
echo "deleting mynetworks"
if grep -q '^mynetworks[[:space:]]*=' main.cf; then
# need to remove it, get postconf to do the hard part.
postconf -e 'mynetworks=127.0.0.0/8'
perl -i -ne 'print unless /^mynetworks\s*=/' main.cf
fi
else
echo "setting mynetworks: $mynetworks"
set_postconf "mynetworks=$mynetworks"
fi
fi
db_fget postfix/procmail changed
if [ "$RET" = "true" ]; then
db_get postfix/procmail && useprocmail="$RET"
if [ "x$useprocmail" = "xtrue" ]; then
echo "setting mailbox_command"
set_postconf 'mailbox_command=procmail -a "$EXTENSION"'
else
if grep -q ^mailbox_command /etc/postfix/main.cf; then
echo "clearing mailbox_command"
set_postconf "mailbox_command="
fi
fi
fi
db_fget postfix/mailbox_limit changed
if [ "$RET" = "true" ]; then
db_get postfix/mailbox_limit && mailbox_limit="$RET"
echo "setting mailbox_size_limit: $mailbox_limit"
set_postconf "mailbox_size_limit=$mailbox_limit"
fi
db_fget postfix/recipient_delim changed
if [ "$RET" = "true" ]; then
db_get postfix/recipient_delim && recip="$RET"
echo "setting recipient_delimiter: $recip"
set_postconf "recipient_delimiter=$recip"
fi
db_fget postfix/main_mailer_type changed
if [ "$RET" = "true" ]; then
dtrans=smtp
# already have mailer
case "$mailer" in
"Local only") val=loopback-only; dtrans=error;;
"Satellite system") val=loopback-only;;
*) val=all;;
esac
echo "setting inet_interfaces: $val"
set_postconf "inet_interfaces=$val"
if [ $(postconf -h default_transport) != $dtrans ]; then
echo "setting default_transport: $dtrans"
set_postconf "default_transport=$dtrans"
echo "setting relay_transport: $dtrans"
set_postconf "relay_transport=$dtrans"
fi
fi
db_fget postfix/protocols changed
if [ "$RET" = "true" ]; then
db_get postfix/protocols && protocols="$RET"
echo "setting inet_protocols: $protocols"
set_postconf "inet_protocols=$protocols"
fi
# 2.10 upgrade requires us to copy the smtpd_recipient_restrictions
# into smtpd_relay_restrictions Only present for upgrades from before
# 2.10.0-2
if [ -f /var/spool/postfix/set_relay_restrictions ]; then
# early 2.10.0 was special... see #702374
# if we got here with 2.10.0 in OLDVERSION, then there is no value for
# smtpd_relay_restrictions specified in main.cf, and
# smtpd_recipient_restrictions is either null (default for 2.10) or
# else it is some non-default value that we should copy to relay.
VALUE="$(postconf -h smtpd_recipient_restrictions)"
if [ -z "$VALUE" ] && dpkg --compare-versions $OLDVERSION ge 2.10.0; then
# null, so use the correct default
VALUE="permit_mynetworks, reject_unauth_destination"
fi
echo "setting smtpd_relay_restrictions: $VALUE"
set_postconf "smtpd_relay_restrictions=$VALUE"
rm -f /var/spool/postfix/set_relay_restrictions
fi
# Handle migrating daemon_directory, if present, and coming from before
# 3.0.4-5
if [ -n "$OLDVERSION" ] && dpkg --compare-versions $OLDVERSION lt 3.0.4-5; then
for dir in /etc/postfix $(postconf -hn multi_instance_directories); do
DD=$(postconf -c "$dir" -hn daemon_directory)
if [ "X${DD}" = X/usr/lib/postfix ]; then
# The install was aborted in preinst if we didn't get
# permission to fix this. While we're here, also clean out
# specific setting of shlib_directory to the default.
echo "removing daemon_directory setting from ${dir}/main.cf"
sed -i '/^daemon_directory[[:space:]]*=/d' "${dir}/main.cf"
CHANGES=true
SD=$(postconf -c "$dir" -hn shlib_directory)
if [ "X${SD}" = X/usr/lib/postfix ]; then
echo "removing shlib_directory setting from ${dir}/main.cf"
sed -i '/^shlib_directory[[:space:]]*=/d' "${dir}/main.cf"
fi
fi
done
fi
if [ -z "$CHANGES" ]; then
MSG="configuration was not changed"
else if [ -n "$NEWCONF" ]; then
MSG="is now set up with a default configuration"
else
MSG="is now set up with the changes above"
fi
fi
else # ] No configuration [
if [ -f main.cf ]; then
MSG="configuration was untouched"
else
MSG="was not set up. Start with
cp /usr/share/postfix/main.cf.debian /etc/postfix/main.cf
"
# make sure that we don't try anything stupid below.
NEWALIASES=""
rm -f /var/spool/postfix/restart /var/spool/postfix/reload
fi
fi # not 'No configuration' ]
if [ ! -f /etc/aliases ]; then # no /etc/aliases [
echo "/etc/aliases does not exist, creating it."
cat << EOF > /etc/aliases
# See man 5 aliases for format
postmaster: root
EOF
if [ "$mailer" != "No configuration" ]; then # [
db_fget postfix/root_address changed
if [ "$RET" = "true" ]; then
add_root_alias
NEWALIASES=y
fi
fi # not 'No configuration' ]
fi # ] no /etc/aliases
if [ "X$OLDVERSION" = "X" ]; then
# On fresh installs, push a root alias into the file.
if ! grep -q ^root: /etc/aliases && ! [ -f ~root/.forward ]; then
add_root_alias
NEWALIASES=y
fi
# And update the doc dirs if postfix-doc is already unpacked
if [ -f /etc/postfix/main.cf ] && \
[ -f /usr/share/doc/postfix-doc/changelog.Debian.gz ]; then
postconf -e readme_directory=/usr/share/doc/postfix \
html_directory=/usr/share/doc/postfix/html
fi
fi
db_fget postfix/root_address changed
if [ "$RET" = "true" ] && ! grep -q ^root: /etc/aliases; then
echo "WARNING: /etc/aliases exists, but does not have a root alias."
fi
fset_all_changed false
fold -s << EOF
Postfix $MSG. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).
After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.
EOF
# all done with debconf here.
db_stop
fix_master
# Fix old permissions
chown postfix:postfix /var/lib/postfix
if [ -f /var/lib/postfix/prng_exch ]; then
chown postfix:postfix /var/lib/postfix/prng_exch
fi
if [ "X$OLDVERSION" = "X" ] && [ ! -f /etc/aliases.db ]; then
NEWALIASES=y
fi
if [ -x /usr/sbin/update-inetd ]; then
update-inetd --disable smtp </dev/null >/dev/null 2>&1 || true
fi
# Make sure we have main/master.cf.proto for multi-inst (#838528)
if [ ! -f /etc/postfix/main.cf.proto ]; then
cp /usr/share/postfix/main.cf.dist /etc/postfix/main.cf.proto
fi
if [ ! -f /etc/postfix/master.cf.proto ]; then
cp /usr/share/postfix/master.cf.dist /etc/postfix/master.cf.proto
fi
if [ "$mailer" != "No configuration" ] || [ -f /etc/postfix/main.cf ]; then
if [ -n "$NEWALIASES" ]; then
echo "Running newaliases"
rm -f /etc/aliases.db # handle the roll to db2.0
# newaliases chokes if hostname not set
# newaliases is equivalent to postalias $(postconf -h alias_database)
# and in debootstrap, newaliases == /bin/true...
if [ -z "$(postconf -h myhostname||true)" ]; then
cp -a main.cf main.cf.dpkg.$$
postconf -e 'myhostname=debian'
newaliases
mv main.cf.dpkg.$$ main.cf
else
newaliases
fi
fi
[ -x /usr/sbin/invoke-rc.d ] && \
INIT="invoke-rc.d postfix" || \
INIT="/etc/init.d/postfix"
# start postfix
if [ -f /var/spool/postfix/restart ]; then
rm -f /var/spool/postfix/restart
${INIT} restart
else
# or maybe just restart postfix
if [ -f /var/spool/postfix/reload ]; then
rm -f /var/spool/postfix/reload
${INIT} restart
fi
fi
fi
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