diff options
Diffstat (limited to 'debian/debconf/update-exim4.conf')
| -rw-r--r-- | debian/debconf/update-exim4.conf | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/debian/debconf/update-exim4.conf b/debian/debconf/update-exim4.conf new file mode 100644 index 0000000..d345fe6 --- /dev/null +++ b/debian/debconf/update-exim4.conf @@ -0,0 +1,484 @@ +#!/bin/sh +# update-exim4.conf(8) - Generate /var/lib/exim4/config.autogenerated + +set -e +set -C +set -f + +UPEX4C_confdir="/etc/exim4" +UPEX4C_sections="main acl router transport retry rewrite auth" + +# list of ue4cc options that need to support both colons and +# semicolons as separators. dc_other_hostnames and dc_smarthost +# has special handling. +UPEX4C_semicolon="dc_local_interfaces dc_relay_nets dc_relay_domains" +EXIM="/usr/sbin/exim4" + +UPEX4C_verbose=no +UPEX4C_autoconfigfile=/var/lib/exim4/config.autogenerated +UPEX4C_outputfile="${UPEX4C_autoconfigfile}" +UPEX4C_version="" + +usage() { +cat <<EOF +$0 - Generate exim4 configuration files + Options: + -v|--verbose - Enable verbose mode, tell about ignored files + -h|--help - Show this message + --keepcomments - Do not remove comment lines + --removecomments - Remove comment lines + -o|--output file - write output to file instead of ${UPEX4C_outputfile} + -d|--confdir directory - read input from given directory instead of ${UPEX4C_confdir} + --check - Test generated file for validity and remove it again. +EOF +} + +## Parse commandline +TEMP=$(getopt -n update-exim4.conf \ + -l check,keepcomments,removecomments,output:,confdir:,help,verbose -- \ + +o:d:vh "$@") + +if test "$?" != 0; then + echo "Terminating..." >&2 + exit 1 +fi + +eval set -- ${TEMP} +while test "$1" != "--"; do + case $1 in + -h|--help) + usage + exit 0 + ;; + -v|--verbose) + UPEX4C_verbose=yes + ;; + --keepcomments) + UPEX4C_comments=yes + ;; + --removecomments) + UPEX4C_comments=no + ;; + --check) + UPEX4C_check=yes + ;; + -o|--output) + shift + UPEX4C_outputfile="$1" + ;; + -d|--confdir) + shift + UPEX4C_confdir="$1" + ;; + esac + shift +done +shift + +# No non-option arguments allowed. +if [ "$#" -ne 0 ]; then + echo "No non option arguments ($@) allowed" >&2 + usage >&2 + exit 1 +fi + +# exit immediately if /etc/exim4/exim4.conf exists and -o was not specified +if [ -e /etc/exim4/exim4.conf ] && \ + [ "${UPEX4C_outputfile}" = "${UPEX4C_autoconfigfile}" ] ; then + exit 0 +fi + +UE4CC="$UPEX4C_confdir/update-exim4.conf.conf" +UPEX4C_confd="$UPEX4C_confdir/conf.d" + +[ -d "$(dirname "$UPEX4C_outputfile")" ] || \ +{ printf "$0: Error, missing $(dirname "$UPEX4C_outputfile"), exiting.\n" 1>&2 ; exit 1 ; } + +if [ -f "$UE4CC" ]; then + . "$UE4CC" +else + echo >&2 "$0: Error, no $UE4CC, exiting." + exit 1 +fi + + +UPEX4C_autoconfigfile=/var/lib/exim4/config.autogenerated +if [ "$(dirname ${UPEX4C_outputfile})" = "/var/lib/exim4" ] ; then + UPEX4C_tmp="${UPEX4C_outputfile}.tmp" +else + UPEX4C_tmp="$(mktemp)" +fi + +lowerpipe() { + tr 'A-Z' 'a-z' +} + +lowercase() { + echo "$*" | lowerpipe +} + +check_ascii_pipe() { + IN="$(cat)" + # Use "abcdef... instead of a a-z or [:alnum:] here since the alternatives + # will also match non-ascii characters. + OUT="$(echo $IN | sed 's/[^-0-9ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\/\.!*@_~:;< \[\]]/_/g')" + if [ "$OUT" != "$IN" ]; then + echo >&2 "$0: non-ascii value $IN read from $UE4CC, sanitizing to $OUT" + fi + echo $OUT +} + +[ "${CFILEMODE}" = "" ] && CFILEMODE=644 +[ "${dc_use_split_config}" = "" ] && dc_use_split_config='false' +[ "${dc_localdelivery}" = "" ] && dc_localdelivery='mail_spool' +[ "${UPEX4C_comments:-}" = "" ] && UPEX4C_comments="${ue4c_keepcomments:-no}" + +TEMPLATEFILE="${UPEX4C_confdir}/exim4.conf.template" + +dc_use_split_config="$(lowercase $dc_use_split_config)" +UPEX4C_verbose="$(lowercase $UPEX4C_verbose)" + +if [ "${dc_use_split_config}" = "true" ]; then + [ "${UPEX4C_verbose}" = "yes" ] && \ + echo "using split configuration scheme from ${UPEX4C_confd}" + if ! [ -d "${UPEX4C_confd}" ]; then + printf >&2 "$0: Error, no ${UPEX4C_confd}, exiting.\n" + exit 1 + fi +else + [ "${UPEX4C_verbose}" = "yes" ] && \ + echo "using non-split configuration scheme from ${TEMPLATEFILE}" +fi + +# take only the first word from /etc/mailname +mailname="$(< /etc/mailname sed -n 's/\([-[:alnum:]@\.]\+\).*/\1/;p;q' | lowerpipe | check_ascii_pipe)" + +# barf if lookups are found. They have never been supported here. +if echo " ${dc_other_hostnames} ${dc_smarthost} ${dc_local_interfaces} ${dc_relay_nets} ${dc_relay_domains}"| grep -q '[[:space:]]\(partial-\)\?\(cdb\|dbm\|dbmnz\|\(d\|ipl\|\(n\?wild\)\?l\)search\|nis\)\([\*@]\)\?[[:space:]]*;'; then + echo >&2 "WARNING: using 'lookup;' constructs in $UE4CC has never been supported! See /usr/share/doc/exim4-config/NEWS.Debian.gz for details." +fi + +dc_other_hostnames="$(lowercase $dc_other_hostnames | check_ascii_pipe)" +# add localhost, get rid of spaces, trailing (semi)colons and make the list +# colon separated +local_domains="$(echo @:localhost:"${dc_other_hostnames}" | \ + sed -e 's/[;: ]*$//' -e 's/ *//' -e 's/;/:/g')" + + +# run-parts emulation, stolen from Branden's /etc/X11/Xsession +# Addition: Use file.rul instead if file if it exists. +run_parts () { + # reset LC_COLLATE + unset LANG LC_COLLATE LC_ALL + + if [ -z "$1" ]; then + errormessage "$0: internal run_parts called without an argument" + fi + if [ ! -d "$1" ]; then + errormessage "$0: internal run_parts called, but $1 does not exist or is not a directory." + fi + for F in $(ls $1); do + if expr "$F" : '[[:alnum:]_-]\+$' > /dev/null 2>&1; then + if [ -f "$1/$F" ] ; then + if [ -f "$1/${F}.rul" ] ; then + echo "$1/${F}.rul" + else + echo "$1/$F" + fi + fi + else + if [ "${UPEX4C_verbose}" = "yes" ] && \ + [ -f "$1/$F" ] && \ + ! expr "$F" : '[[:alnum:]_-]\+\.rul'> /dev/null 2>&1 ; then + echo \ + "internal run-parts: ignoring file: $1/$F" 1>&2 + fi + fi + done; +} +# also from Branden +errormessage () { + # pretty-print messages of arbitrary length (no trailing newline) + echo "$*" | fold -s -w ${COLUMNS:-80} >&2; +} + +cat_parts() { + if [ -z "$1" ]; then + errormessage "$0: internal cat_parts called without an argument" + fi + if [ ! -d "$1" ]; then + errormessage "$0: internal cat_parts called, but $1 does not exist or is not a directory." + fi + for file in $(run_parts $1); do + echo "#####################################################" + echo "### $file" + echo "#####################################################" + cat "$file" + echo + echo "#####################################################" + echo "### end $file" + echo "#####################################################" + done +} + +gentmpconf() { + rm -f "${UPEX4C_tmp}" + touch "${UPEX4C_tmp}" + # this can be removed by the end of 2007 + #chown --reference=${TEMPLATEFILE} \ + # ${UPEX4C_tmp} ${UPEX4C_outputfile} + #chmod --reference=${TEMPLATEFILE} \ + # ${UPEX4C_tmp} ${UPEX4C_outputfile} + if [ "$(id -u)" = "0" ]; then + chown root:Debian-exim "${UPEX4C_tmp}" + [ -e "${UPEX4C_outputfile}" ] && \ + chown root:Debian-exim "${UPEX4C_outputfile}" + fi + chmod 640 "${UPEX4C_tmp}" + if [ -e "${UPEX4C_outputfile}" ]; then + chmod 640 "${UPEX4C_outputfile}" + fi +} + +removecomments(){ + if [ "${UPEX4C_comments}" = "no" ] ; then + grep -E -v '^[[:space:]]*#' | sed -e '/^$/N;/\n$/D' ; + else + cat + fi +} + +gentmpconf + +cat << EOF >> "${UPEX4C_tmp}" +######### +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# This file was generated dynamically from +EOF + +if [ "${dc_use_split_config}" = "true" ] ; then +cat << EOF >> "${UPEX4C_tmp}" +# split config files in the $UPEX4C_confd/ directory. +EOF +else +cat << EOF >> "${UPEX4C_tmp}" +# non-split config ($UPEX4C_confdir/exim4.conf.localmacros +# and $UPEX4C_confdir/exim4.conf.template). +EOF +fi + +cat << EOF >> "${UPEX4C_tmp}" +# The config files are supplemented with package installation/configuration +# settings managed by debconf. This data is stored in +# $UPEX4C_confdir/update-exim4.conf.conf +# Any changes you make here will be lost. +# See /usr/share/doc/exim4-base/README.Debian.gz and update-exim4.conf(8) +# for instructions of customization. +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +# WARNING WARNING WARNING +######### +EOF + +# handle ";" in input values as separator change + +for field in $UPEX4C_semicolon; do + if eval echo \$$field | grep -q ";"; then + eval temp=\$$field + if ! echo $temp | grep -q "^<"; then + temp="<; $temp" + eval "$field='$temp'" + fi + fi +done + +# fix up smarthost line: change semicolons into single colons +dc_smarthost="$(lowercase $dc_smarthost | check_ascii_pipe | sed 's/;/:/g')" + +dc_relay_nets="$(lowercase $dc_relay_nets | check_ascii_pipe)" + +if echo "$dc_relay_nets" | grep -q '^<;'; then + dc_relay_nets="$dc_relay_nets ; 127.0.0.1 ; ::1" +else + dc_relay_nets="$dc_relay_nets : 127.0.0.1 : ::::1" +fi + +dc_eximconfig_configtype="$(lowercase $dc_eximconfig_configtype | check_ascii_pipe)" +dc_hide_mailname="$(lowercase $dc_hide_mailname | check_ascii_pipe)" +dc_readhost="$(lowercase $dc_readhost | check_ascii_pipe)" +case "$dc_eximconfig_configtype" in + satellite|smarthost) + if [ "${dc_hide_mailname}" = "true" ] && [ -n "${dc_readhost}" ] ; then + hide_mailname=1 + fi + ;; + local) + ;; + internet) + ;; + none|*) + if [ "${dc_use_split_config}" = "true" ] ; then + for i in ${UPEX4C_sections} ; do + cat_parts "${UPEX4C_confd}/$i" + done | \ + removecomments \ + >> "${UPEX4C_tmp}" + else + LOCALMACROS="" + if [ -e "/etc/exim4/exim4.conf.localmacros" ]; then + LOCALMACROS="/etc/exim4/exim4.conf.localmacros" + fi + cat "${LOCALMACROS:-/dev/null}" "${TEMPLATEFILE:-/dev/null}" | \ + removecomments \ + >> "${UPEX4C_tmp}" + fi + mv -f "${UPEX4C_tmp}" "${UPEX4C_outputfile}" + chmod "${CFILEMODE}" "${UPEX4C_outputfile}" + [ "${UPEX4C_verbose}" = "yes" ] && \ + echo "Not substituting variables since conftype is none (or other)" + exit 0 + ;; +esac + +UPEX4C_macros="##############################################\n" +UPEX4C_macros="${UPEX4C_macros}# the following macro definitions were created\n" +UPEX4C_macros="${UPEX4C_macros}# dynamically by $0\n" + +preprocess_macro() { + macroname="${1:-}" + shift + contents="$(lowercase ${@} | check_ascii_pipe)" + printf "%s" ".ifndef $macroname\n$macroname=$contents\n.endif\n" +} + +seed_macro() { + UPEX4C_macros="${UPEX4C_macros}$(preprocess_macro "$1" "$2")" +} + +file2macros() { + file="$1" + < $1 \ + sed -n '/^[[:upper:]]/p;' | \ + grep -v '^CFILEMODE=' | \ + while read line; do + errormessage "undocumented line $line found in $1, generating exim macro" + left="$(echo $line | sed 's/\([^=]*\).*/\1/')" + right="$(echo $line | sed 's/[^=]*=\(.*\)/\1/')" + preprocess_macro "$left" "$right" + done +} + +if [ "${dc_local_interfaces}" != "" ] ; then + seed_macro "MAIN_LOCAL_INTERFACES" "${dc_local_interfaces}" +fi + +if [ "${dc_minimaldns}" = "true" ] ; then + seed_macro "DC_minimaldns" "1" + if guessed_name="$(hostname --fqdn | lowerpipe | check_ascii_pipe | grep '\.')" ; then + seed_macro "MAIN_HARDCODE_PRIMARY_HOSTNAME" "$guessed_name" + else + errormessage "hostname --fqdn did not return a fully qualified name, dc_minimaldns will not work. Please fix your /etc/hosts setup." + fi +fi + +if [ -n "${hide_mailname:-}" ]; then + seed_macro "HIDE_MAILNAME" "${hide_mailname:-}" +fi +seed_macro "MAIN_PACKAGE_VERSION" "$UPEX4C_version" +seed_macro "MAIN_LOCAL_DOMAINS" "${local_domains}" +seed_macro "MAIN_RELAY_TO_DOMAINS" "${dc_relay_domains}" +seed_macro "ETC_MAILNAME" "$mailname" +seed_macro "LOCAL_DELIVERY" "${dc_localdelivery}" +seed_macro "MAIN_RELAY_NETS" "${dc_relay_nets}" +seed_macro "DCreadhost" "${dc_readhost}" +seed_macro "DCsmarthost" "${dc_smarthost}" +seed_macro "DC_eximconfig_configtype" "${dc_eximconfig_configtype}" +seed_macro "DCconfig_${dc_eximconfig_configtype}" "1" + +# dump everything starting with a capital into macros as well +# this is going to stay undocumented, but fixes PEBCAK where people write +# macros into ue4cc. + +UPEX4C_macros="${UPEX4C_macros}$(file2macros $UE4CC)" + +UPEX4C_macros="${UPEX4C_macros}##############################################\n" + +case "${dc_use_split_config}" in +true) + for i in ${UPEX4C_sections} ; do + echo "# begin processing $i #####" + cat_parts "${UPEX4C_confd}/$i" + echo "# end of $i #####" + done \ + | removecomments \ + | sed "s|^\(UPEX4CmacrosUPEX4C.*\)$|\1\n$UPEX4C_macros|" \ + >> "${UPEX4C_tmp}" + RELEVANTTEMPLATE="$UPEX4C_confd" +;; +false) + if [ ! -r "$TEMPLATEFILE" ] ; then + echo "Error: Unsplit config selected and $TEMPLATEFILE missing ... exiting" 1>&2 + exit 1 + fi + LOCALMACROS="" + if [ -e "/etc/exim4/exim4.conf.localmacros" ]; then + LOCALMACROS="${UPEX4C_confdir}/exim4.conf.localmacros" + fi + cat "${LOCALMACROS:-/dev/null}" "${TEMPLATEFILE:-/dev/null}" \ + | removecomments \ + | sed "s|^\(UPEX4CmacrosUPEX4C.*\)$|\1\n$UPEX4C_macros|" \ + >> "${UPEX4C_tmp}" + RELEVANTTEMPLATE="$TEMPLATEFILE" +;; +*) + errormessage "Invalid value for dc_use_split_config: \"${dc_use_split_config}\", exiting." + rm -f "${UPEX4C_tmp}" + exit 1 +;; +esac + +# check for left-over DEBCONF strings that may cause installation trouble +# (fix PEBCAK for people who don't accept conffile changes and don't +# read docs) +if grep -qr '^[^#]*DEBCONF[[:lower:]_]\+DEBCONF' $RELEVANTTEMPLATE \ + && ! grep -qr '^[[:space:]]*DEBCONFstringOK_config_adapted[[:space:]]*=' $RELEVANTTEMPLATE; then + errormessage "DEBCONFsomethingDEBCONF found in exim configuration. This is most probably caused by you upgrading to exim4 4.67-3 or later without accepting the suggested conffile changes. Please read /usr/share/doc/exim4-config/NEWS.Debian.gz for 4.67-2 and 4.67-4" +fi + +# check for left-over UPEX4CmacrosUPEX4C comment string that may cause +# installation trouble (fix PEBCAK for people who don't accept conffile +# changes and don't read docs) +if grep -qr '# UPEX4CmacrosUPEX4C' $RELEVANTTEMPLATE \ + && ! grep -qr '^[[:space:]]*UPEX4CmacrosOK_config_adapted[[:space:]]*=' $RELEVANTTEMPLATE; then + errormessage "UPEX4CmacrosUPEX4C found in an exim configuration comment. This is most probably caused by you upgrading to exim4 4.67-5 or later without accepting the suggested conffile changes. Please read /usr/share/doc/exim4-config/NEWS.Debian.gz for 4.67-5" +fi + + +# test validity if called without -o or if --check was supplied +if [ "${UPEX4C_outputfile}" = "${UPEX4C_autoconfigfile}" ] || \ + [ "x${UPEX4C_check}" = "xyes" ]; then + if [ -x "${EXIM}" ] ; then + if ! "${EXIM}" -C "${UPEX4C_tmp}" -bV > /dev/null ; then + # we have an error in the configuration file. Do not install + # and activate. However, errors in string expansions inside + # the configuration file are not detected by this check! + errormessage "Invalid new configfile ${UPEX4C_tmp}, not installing ${UPEX4C_tmp} to ${UPEX4C_outputfile}" + exit 1 + fi + fi +fi +if [ "x${UPEX4C_check}" = "xyes" ]; then + rm -f "${UPEX4C_tmp}" + exit 0 +fi + +mv -f "${UPEX4C_tmp}" "${UPEX4C_outputfile}" +chmod "${CFILEMODE}" "${UPEX4C_outputfile}" + +# end of file |