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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="4.93-13ubuntu1.10" usage() { cat <&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="$(tempfile -m600 -p ex4)" fi lowerpipe() { tr 'A-Z' 'a-z' } lowercase() { echo "$*" | 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