#! /bin/sh
# postinst script for GeneWeb
#
# see: dh_installdeb(1)

set -e 

# Needs Depends: iso-codes, isoquery
ISOQUERY=/usr/bin/isoquery

# These will be used here and there below
SERVICES=/etc/services
OLDRCFILE=/etc/geneweb/genewebrc
NEWRCFILE=/etc/default/geneweb
INITFILE=/etc/init.d/geneweb
GENEWEBUSER=geneweb


# We we'll need some variables defined there
# We first define some defaults values...just in case
GENEWEBDB=/var/lib/geneweb
USERS_GROUP=geneweb
LOGFILE=/var/log/geneweb.log

# Default settings
DEFAULTLNG="en"
DEFAULTFULLLNG="English"
DEFAULTPORT=2317
DEFAULTRUNMODE="Always on"
DEFAULTREMOVE=false
DEFAULTOPTIONS=""


# Reads config file (will override defaults above)
[ -r $NEWRCFILE ] && . $NEWRCFILE

. /usr/share/debconf/confmodule
db_version 2.0

write_rcfile() {
   cat >$NEWRCFILE <<EOF
#
# GeneWeb Configuration Data
#
# This file may be changed manually, or by running "dpkg-reconfigure geneweb"

# The port which the daemon listens to
PORT="${PORT}"

# The default language
# Look at Geneweb documentation for valid values
# Versions prior to 4.10-9 used LANG which could mix up with
# the system's localisation settings
LNG="${LNG}"

# The run mode
# Two possible values: "Always on" or "Manual"
# You need to use quotes
RUN_MODE="${RUN_MODE}"

# Additionnal options for gwd
# Example: OPTIONS="-a 192.168.1.1" for binding the daemon to a given address
# This setting is not handled by debconf
OPTIONS="${OPTIONS}"
EOF
}

get_debconf() {
    db_get geneweb/port
    PORT=$RET
    # If not present, use default
    if [ "$PORT" = "" ]
    then
	PORT=$DEFAULTPORT
    fi


    db_get geneweb/lang
    FULLLNG=$RET
    # If not present, use default
    if [ "$FULLLNG" = "" ]
    then
	FULLLNG=$DEFAULTFULLLNG
    fi
    # Find the two letter code for language
    # LNG=`echo $FULLLNG | cut -f 2 -d "(" | cut -f 1 -d ")"`
    LNG=`$ISOQUERY --iso=639-2 | grep "${FULLLNG}\$" | cut -f3`


    db_get geneweb/run_mode
    RUN_MODE="$RET"
    # If not present, use default
    if [ "$RUN_MODE" = "" ]
    then
	RUN_MODE="$DEFAULTRUNMODE"
    fi
}




case "$1" in
    configure)

	# NEWRCFILE has to be world-readable if we want the entry menu to work
	[ -f $NEWRCFILE ] && chmod g+r,a+r $NEWRCFILE

	[ -f $INITFILE ] && chmod a+rx $INITFILE

	if [ ! -x `which addgroup` ]; then
	    echo "addgroup(8) from the \'adduser\' package is needed...";
	    exit 1;
	fi

	# Make sure user group is available
	if ! getent group ${USERS_GROUP} >/dev/null
	then
	    echo "Adding $USERS_GROUP group ... "
	    addgroup --quiet --force-badname $USERS_GROUP
	fi
	
	if [ ! -x `which adduser` ]; then
	    echo "adduser(8) from the \'adduser\' package is needed...";
	    exit 1;
	fi

	# Make sure geneweb user exists
	if ! getent passwd ${GENEWEBUSER} >/dev/null
	then
	    echo "Adding $GENEWEBUSER user ... "
	    adduser --quiet --system --home /var/lib/geneweb --no-create-home --ingroup $USERS_GROUP $GENEWEBUSER
	fi
	
	# Permissions and groups changes come back
	# to the configure stage again.
	# Problems may remains if users previously messed up
	# the permissions...but more huge problems will
	# occur if this stage occurs _before_ the geneweb
	# group creation (was bug 171570 on 4.07-3 release)

	if [ ! -f $LOGFILE ]
	then
	    touch $LOGFILE
	fi

	# Thus all files created there will have geneweb as group
	chown root:$USERS_GROUP $GENEWEBDB $GENEWEBDB/images $GENEWEBDB/cnt $GENEWEBDB/etc
	# The database directory is writable by geneweb group
	chmod ug+rwx,o-rwx $GENEWEBDB $GENEWEBDB/images $GENEWEBDB/cnt $GENEWEBDB/etc
	# SetGID bit on the database directory owned by geneweb group
	chmod g+s $GENEWEBDB $GENEWEBDB/images $GENEWEBDB/cnt $GENEWEBDB/etc

	# The log file is written by gwd running as the geneweb user
	# Make it readable/writable by this user only
	chown $GENEWEBUSER:$USERS_GROUP $LOGFILE
	chmod 600 $LOGFILE

	# Fix incorrect database and images directories permissions
	# These directories have to be group-writable
	# as the daemon now runs with an unprivileged UID
	#
	# Thanks to Russell Sutherland for pointing this to me
	# Bug: 179918
	#
	# Deal properly with database names that contain spaces
	OLDIFS=${IFS}
	IFS='
'
	for base in `find $GENEWEBDB -type d -name \*.gwb`
	do
	    chgrp $USERS_GROUP "$base"
	    chmod g+w,g+s "$base"
	    # Fix files permissions. See #219779
	    for file in `find $base -type f`
	    do
		chgrp $USERS_GROUP "$file"
		chmod g+w "$file"
	    done
	done
	for imagedir in `find $GENEWEBDB/images -type d`
	do
	    chgrp $USERS_GROUP "$imagedir"
	    chmod g+w,g+s "$imagedir"
	done
	IFS=${OLDIFS}

	# Values are read from debconf
	# to update variables
	get_debconf
	# The settings file is written
	# Moved to postinst
	write_rcfile

	;;
    *)
	;;
esac

# Transition of init scripts links: we don't want them in runlevels
# 0 and 6 anymore
if dpkg --compare-versions "$2" lt "5.01-4"; then
	update-rc.d -f geneweb remove
fi

#DEBHELPER#