sks 1.1.5-4build2 / postinst

#!/bin/sh -e

# checking debian-sks account

uid=`getent passwd debian-sks | cut -d ":" -f 3`
home=`getent passwd debian-sks | cut -d ":" -f 6`

# if there is the uid the account is there and we can do
# the sanit(ar)y checks otherwise we can safely create it.

if [ "$uid" ]; then
    # guess??? the checks!!!
    if [ $uid -ge 100 ] && [ $uid -le 999 ]; then
    	echo "debian-sks uid check: ok"
    else
    	echo "ERROR: debian-sks account has a non-system uid!"
	echo "Please check /usr/share/doc/sks/README.Debian on how to"
	echo "correct this problem"
	exit 1
    fi
    if [ "$home" = "/var/lib/sks" ]; then
        echo "debian-sks homedir check: ok"
    else
	echo "ERROR: debian-sks account has an invalid home directory!"
	echo "Please check /usr/share/doc/sks/README.Debian on how to"
	echo "correct this problem"
	exit 1
    fi
else
    # what this might mean?? oh creating a system l^Huser!
    adduser --quiet \
            --system \
            --disabled-password \
            --home /var/lib/sks \
	    --no-create-home \
	    --shell /bin/bash \
	    --group \
    debian-sks
fi

if [ "$2" = "" ]; then
    # ch{owning,moding} things around
    # note that sks creates files/dirs with 600/700
    # permissions as default. so let's stick with it for the
    # installation. We will do nothing across upgrades.
    for i in lib log spool; do
	chown -R debian-sks:debian-sks /var/$i/sks
	chmod -R 700 /var/$i/sks
	find /var/$i/sks -type f -exec chmod 600 '{}' ';'
    done
    chgrp -R adm /var/log/sks
    chmod -R g+rX /var/log/sks
    chmod    g+s  /var/log/sks

    # Note the active Berkeley DB version
    cp -f /usr/lib/sks/berkeley_db.txt /var/lib/sks/berkeley_db.active
else
    if [ "$1" = "configure" ]; then
	# fix permissions of logs after 1.0.9-0.1
	if dpkg --compare-versions "$2" lt "1.0.9-0.2" ; then
	    chgrp -R adm /var/log/sks
	    chmod -R g+rX /var/log/sks
	    chmod    g+s  /var/log/sks
	fi
	# 1.0.10 renamed log files from /var/log/sks/sks.foo.log to /var/log/sks/foo.log,
	# so be nice and rename things for the admin.
	if dpkg --compare-versions "$2" lt "1.0.10" ; then
	    for i in `ls -1 /var/log/sks/`; do
		if echo "$i" | grep -q '^sks\.'; then
		    mv /var/log/sks/"$i" /var/log/sks/`echo "$i" | sed -e 's/^sks.//'`
		fi
	    done
	fi

	# Read the active Berkeley DB version, fall back to 4.7 if not found
	if [ -r /var/lib/sks/berkeley_db.active ]; then
	    OLD_BDB=$(cat /var/lib/sks/berkeley_db.active)
	else
	    if dpkg --compare-versions "$2" lt "1.1.1+dpkgv3-1"; then
		OLD_BDB=4.6
	    elif dpkg --compare-versions "$2" lt "1.1.1+dpkgv3-6.1"; then
		OLD_BDB=4.7
	    else
		OLD_BDB=4.7
	    fi
	fi

	# Read the compiled-in Berkeley DB version
	NEW_BDB=$(cat /usr/lib/sks/berkeley_db.txt)

	if [ "$OLD_BDB" != "$NEW_BDB" ]; then

	# Upgrade Berkeley DB in place
	BACKUP_DIR=/var/backups/sks/$(date +%Y%m%d-%H%M%S)
	SKS_DIR=/var/lib/sks
	mkdir -p $BACKUP_DIR
	chown debian-sks:debian-sks ${BACKUP_DIR}

	for DBHOME in DB PTree; do

	    # Don't run if the database directory doesn't exist
	    [ ! -d ${SKS_DIR}/${DBHOME} ] && continue

	    # Create backup directory
	    mkdir -p ${BACKUP_DIR}/${DBHOME}
	    chown debian-sks:debian-sks ${BACKUP_DIR}/${DBHOME}

	    # Make sure we own the files
	    chown debian-sks:debian-sks -R ${SKS_DIR}/${DBHOME}

	    if [ -x /usr/bin/db${OLD_BDB}_recover ]; then
	        # Run recover with old tools
		su debian-sks -c "db${OLD_BDB}_recover -h ${SKS_DIR}/${DBHOME}"
	        # Backup needed log files
		LOG_FILES=$(su debian-sks -c "db${OLD_BDB}_archive -h ${SKS_DIR}/${DBHOME} -l")
	    else
		# If we don't have the Berkeley DB tools then backup all log files
		LOG_FILES=$(cd ${SKS_DIR}/${DBHOME}; ls -1 | grep -E "^log\.")
	    fi

	    # Backup log files
	    for log_file in ${LOG_FILES}; do
		cp -a ${SKS_DIR}/${DBHOME}/$log_file ${BACKUP_DIR}/${DBHOME}/
	    done

            if [ -e "${SKS_DIR}/${DBHOME}/DB_CONFIG" ]; then
                cp -a ${SKS_DIR}/${DBHOME}/DB_CONFIG ${BACKUP_DIR}/${DBHOME}/
            fi

	    # Backup & upgrade database files
	    for db in $(cd ${SKS_DIR}/${DBHOME}; ls -1 | grep -Ev "^(__|log\.|DB_CONFIG$)"); do
		# Backup database file
		su debian-sks -c "cp ${SKS_DIR}/${DBHOME}/${db} ${BACKUP_DIR}/${DBHOME}/"
		# Upgrade database file
    		su debian-sks -c "db${NEW_BDB}_upgrade -h ${SKS_DIR}/${DBHOME} ${SKS_DIR}/${DBHOME}/$db";
	    done
    
	    # Set checkpoint and delete old logfiles
	    su debian-sks -c "db${NEW_BDB}_checkpoint -h ${SKS_DIR}/${DBHOME} -1"
	    su debian-sks -c "db${NEW_BDB}_archive -h ${SKS_DIR}/${DBHOME} -d"
	done

	# Note the active Berkeley DB version
	cp -f /usr/lib/sks/berkeley_db.txt /var/lib/sks/berkeley_db.active

	elif [ ! -e /var/lib/sks/berkeley_db.active ]; then
	    cp -f /usr/lib/sks/berkeley_db.txt /var/lib/sks/berkeley_db.active
	fi
    fi
fi

# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
	if [ -x "/etc/init.d/sks" ]; then
		update-rc.d sks defaults >/dev/null
	fi
	if [ -x "/etc/init.d/sks" ] || [ -e "/etc/init/sks.conf" ]; then
		invoke-rc.d sks start || exit $?
	fi
fi
# End automatically added section


exit 0