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#!/bin/sh set -e # Source debconf library . /usr/share/debconf/confmodule # This conf script is capable of backing up db_version 2.0 db_capb backup to_lower() { word="$1" lcword=$(echo "$word" | tr A-Z a-z) echo "$lcword" } is_true() { var="$1" lcvar=$(to_lower "$var") [ 'true' = "$lcvar" ] || [ 'yes' = "$lcvar" ] || [ 1 = "$lcvar" ] return $? } is_false() { var="$1" lcvar=$(to_lower "$var") [ 'false' = "$lcvar" ] || [ 'no' = "$lcvar" ] || [ 0 = "$lcvar" ] return $? } ucf_cleanup() { # This only does something if I've fucked up before # Not entirely impossible :( configfile=$1 if [ `grep "$configfile" /var/lib/ucf/hashfile | wc -l` -gt 1 ]; then grep -v "$configfile" /var/lib/ucf/hashfile > /var/lib/ucf/hashfile.tmp grep "$configfile" /var/lib/ucf/hashfile | tail -n 1 >> /var/lib/ucf/hashfile.tmp mv /var/lib/ucf/hashfile.tmp /var/lib/ucf/hashfile fi } add_to_ucf() { configfile=$1 ucffile=$2 if ! grep -q "$configfile" /var/lib/ucf/hashfile; then md5sum $configfile >> /var/lib/ucf/hashfile cp $configfile $ucffile fi } ucf_upgrade_check() { configfile=$1 sourcefile=$2 ucffile=$3 if [ -f "$configfile" ]; then add_to_ucf $configfile $ucffile ucf --three-way --debconf-ok "$sourcefile" "$configfile" else [ -d /var/lib/ucf/cache ] || mkdir -p /var/lib/ucf/cache pathfind restorecon && restorecon /var/lib/ucf/cache cp $sourcefile $configfile add_to_ucf $configfile $ucffile fi } slurp_config() { CLAMAVCONF="$1" if [ -e "$CLAMAVCONF" ]; then for variable in `egrep -a -v '^[[:space:]]*(#|$)' "$CLAMAVCONF" | awk '{print $1}'`; do case "$variable" in DatabaseMirror) if [ -z "$DatabaseMirror" ]; then for i in `grep -a ^$variable $CLAMAVCONF | awk '{print $2}'`; do value="$value $i" done else continue fi ;; DatabaseCustomURL) if [ -z "$DatabaseCustomURL" ]; then for i in `grep -a ^$variable $CLAMAVCONF | awk '{print $2}'`; do value="$value $i" done else continue fi ;; IncludePUA) if [ -z "$IncludePUA" ]; then for i in `grep -a ^$variable $CLAMAVCONF | awk '{print $2}'`; do value="$i $value" done else continue fi ;; ExcludePUA) if [ -z "$ExcludePUA" ]; then for i in `grep -a ^$variable $CLAMAVCONF | awk '{print $2}'`; do value="$i $value" done else continue fi ;; ExtraDatabase) if [ -z "$ExtraDatabase" ]; then for i in `grep -a ^$variable $CLAMAVCONF | awk '{print $2}'`; do value="$value $i" done else continue fi ;; VirusEvent|OnUpdateExecute|OnErrorExecute|RejectMsg) value=`grep -a ^$variable $CLAMAVCONF | head -n1 | sed -e s/$variable\ //` ;; *) value=`grep -a "^$variable[[:space:]]" $CLAMAVCONF | head -n1 | awk '{print $2}'` ;; esac if [ -z "$value" ]; then export "$variable"="true" elif [ "$value" != "$variable" ]; then export "$variable"="$value" else export "$variable"="true" fi unset value done fi } pathfind() { OLDIFS="$IFS" IFS=: for p in $PATH; do if [ -x "$p/$*" ]; then IFS="$OLDIFS" return 0 fi done IFS="$OLDIFS" return 1 } set_debconf_value() { prog=$1 name=$2 eval variable="\$${name}" if [ -n "$variable" ]; then db_set clamav-$prog/$name "$variable" || true fi } make_dir() { DIR=$1 if [ -d "$DIR" ]; then return 0; fi [ -n "$User" ] || User=clamav mkdir -p -m 0755 "$DIR" chown "$User" "$DIR" pathfind restorecon && restorecon "$DIR" } # Debconf Functions isdigit () { case $1 in [[:digit:]]*) ISDIGIT=1 ;; *) ISDIGIT=0 ;; esac } inputdigit () { ISDIGIT=0 while [ "$ISDIGIT" = '0' ]; do db_input "$1" "$2" || true if ! db_go; then return 30 fi db_get $2 || true isdigit $RET if [ "$ISDIGIT" = '0' ]; then db_input critical clamav-base/numinfo || true db_go fi done return 0 } StateGeneric() { PRIO=$1 QUESTION=$2 NEXT=$3 LAST=$4 db_input $PRIO $QUESTION || true if db_go; then STATE=$NEXT else STATE=$LAST fi } StateGenericDigit() { PRIO=$1 QUESTION=$2 NEXT=$3 LAST=$4 inputdigit $PRIO $QUESTION || true if db_go; then STATE=$NEXT else STATE=$LAST fi } FRESHCLAMCONF='/etc/clamav/freshclam.conf' if [ -n "$http_proxy" ]; then db_set clamav-freshclam/http_proxy "$http_proxy" || true fi # Read the configuration file slurp_config "$FRESHCLAMCONF" # Store conf file values as debconf answers - make sure user changes made # outside of debconf are preserved [ -f /var/lib/clamav/interface ] && Interface=`cat /var/lib/clamav/interface` if [ -n "$Interface" ]; then db_set clamav-freshclam/autoupdate_freshclam ifup.d || true fi if [ -n "$Interface" ]; then db_set clamav-freshclam/internet_interface "$Interface" || true fi if [ -n "$DatabaseMirror" ]; then # pick the first entry, there may be more than one of them DatabaseMirror="`echo $DatabaseMirror | awk '{print $1}'`" if [ -e /usr/share/doc/clamav-freshclam/mirror-list.gz ]; then if zgrep -q "$DatabaseMirror" /usr/share/doc/clamav-freshclam/mirror-list.gz;then db_set clamav-freshclam/local_mirror `zgrep "$DatabaseMirror" /usr/share/doc/clamav-freshclam/mirror-list.gz` || true else db_set clamav-freshclam/local_mirror "$DatabaseMirror" || true fi fi fi if [ -n "$HTTPProxyServer" ]; then db_set clamav-freshclam/http_proxy "http://$HTTPProxyServer:$HTTPProxyPort/" || true fi if [ -n "$HTTPProxyUsername" ]; then db_set clamav-freshclam/proxy_user "$HTTPProxyUsername:$HTTPProxyPassword" || true fi if [ -n "$Checks" ]; then db_set clamav-freshclam/update_interval "$Checks" || true fi if [ -n "$NotifyClamd" ]; then # clamav-freshclam/NotifyClamd is a boolean template, but the postinst writes # the path to the clamav-daemon configuration file to the freshclam.conf [ "$NotifyClamd" = "/etc/clamav/clamd.conf" ] && NotifyClamd="true" db_set clamav-freshclam/NotifyClamd "$NotifyClamd" || true fi set_debconf_value freshclam Bytecode set_debconf_value freshclam PrivateMirror set_debconf_value freshclam LogRotate # States StateInit() { STATE="autoupdate_freshclam" } Stateautoupdate_freshclam() { db_input medium clamav-freshclam/autoupdate_freshclam || true if db_go; then db_metaget clamav-freshclam/autoupdate_freshclam value || true if [ "$RET" = "ifup.d" ]; then STATE="internet_interface" else STATE="local_mirror" fi else STATE="End" fi } Statelocal_mirror() { db_input medium clamav-freshclam/local_mirror || true if ! db_go; then STATE="autoupdate_freshclam" else db_metaget clamav-freshclam/local_mirror value || true if [ -z "$RET" ]; then db_set clamav-freshclam/local_mirror 'db.local.clamav.net' || true fi STATE="http_proxy" fi } Statehttp_proxy() { db_input medium clamav-freshclam/http_proxy || true if ! db_go; then STATE="local_mirror" else db_metaget clamav-freshclam/http_proxy value || true if [ -z "$RET" ]; then STATE="update_interval" else STATE="proxy_user" fi fi } Stateupdate_interval() { db_input low clamav-freshclam/update_interval || true if ! db_go; then STATE="http_proxy" else db_metaget clamav-freshclam/update_interval value || true if [ -z "$RET" ]; then db_set clamav-freshclam/update_interval 12 || true fi STATE="notify_daemon" fi } # This is the statemachine that controls execution. All the 'real' work is # performed by subfunctions above. STATE="Init" while [ "$STATE" != "End" ]; do case "$STATE" in Init) StateInit ;; autoupdate_freshclam) Stateautoupdate_freshclam ;; local_mirror) Statelocal_mirror ;; http_proxy) Statehttp_proxy ;; proxy_user) StateGeneric medium clamav-freshclam/proxy_user update_interval http_proxy ;; internet_interface) StateGeneric high clamav-freshclam/internet_interface local_mirror autoupdate_freshclam ;; update_interval) Stateupdate_interval ;; notify_daemon) StateGeneric medium clamav-freshclam/NotifyClamd bytecode update_interval ;; bytecode) StateGeneric low clamav-freshclam/Bytecode private_mirror notify_daemon ;; private_mirror) StateGeneric low clamav-freshclam/PrivateMirror log_rotate bytecode ;; log_rotate) StateGeneric low clamav-freshclam/LogRotate End private_mirror ;; esac done db_stop || true exit 0