#! /bin/sh
# 
# Configure apache for GForge
# Christian Bayle, Roland Mas, debian-sf (GForge for Debian)
#
# Reset fb color mode
RESET="]R"
# ANSI COLORS
# Erase to end of line
CRE="
"
# Clear and reset Screen
CLEAR="c"
# Normal color
NORMAL=""
# RED: Failure or error message
RED=""
# GREEN: Success message
GREEN=""

set -e

ARG=$@
if [ $(id -u) != 0 ] ; then
    echo "You must be root to run this, please enter passwd"
    exec su -c "$0 $1"
fi

remove_gforge_insert(){
			cp -a $1 $1.gforge-new
			echo "Removing Gforge inserted lines from $1.gforge-new"
			set +e
			vi -e $1.gforge-new > /dev/null 2>&1 <<-FIN
/### Next line inserted by GForge install
:d
:d
:w
:x
FIN
set -e
}

search_conf_file(){
CONFFILE=$1
shift
echo -n "Searching $CONFFILE config file	"
RESULT=""
for i in $*
do
	if [ -f "$i" ]
	then
		RESULT="$i $RESULT"
	fi
done
if [ -z "$RESULT" ]
then
	echo "$RED[Failed]$NORMAL" 
	echo "${CONFFILE} conf file not found at $*"
	echo "Please set ${CONFFILE}_ETC_SEARCH" ; exit 1
else
	echo "$GREEN[OK]$NORMAL"
fi
}

get_conf(){
if [ "$HAVECONF" != "true" ]
then
if [ -z "$APACHE_ETC_SEARCH" ] 
then 
	APACHE_ETC_SEARCH="/etc/apache2/apache2.conf /etc/apache/httpd.conf /etc/apache-perl/httpd.conf /etc/apache-ssl/httpd.conf"
fi
if [ -z "$GFORGE_ETC_SEARCH" ] 
then 
	GFORGE_ETC_SEARCH="/etc/gforge/httpd.conf"
fi
if [ -z "$PHP_ETC_SEARCH" ] 
then 
	PHP_ETC_SEARCH="/etc/php5/apache2/php.ini /etc/php5/cgi/php.ini"
fi
export APACHE_ETC_SEARCH GFORGE_ETC_SEARCH PHP_ETC_SEARCH

search_conf_file APACHE "$APACHE_ETC_SEARCH"
APACHE_ETC_LIST="$RESULT"
search_conf_file GFORGE "$GFORGE_ETC_SEARCH"
GFORGE_ETC_LIST="$RESULT"
search_conf_file PHP "$PHP_ETC_SEARCH"
PHP_ETC_LIST="$RESULT"
export APACHE_ETC_LIST GFORGE_ETC_LIST PHP_ETC_LIST

[ -z "$gforgebin" ] && gforgebin="/usr/share/gforge/bin"
set $GFORGE_ETC_LIST
gforgeconffile=$1
echo Using $gforgeconffile
export gforgeconffile
HAVECONF=true
export HAVECONF
fi
}

get_conf
set $ARG
case "$1" in
    configure-files)
	# Make sure Apache sees us
	for apacheconffile in $APACHE_ETC_LIST
	do
		APACHE_ETC_DIR=`dirname $apacheconffile`
		if [ -d "$APACHE_ETC_DIR/conf.d" ]
		then
			# New apache conf	
			# Remove old hack to have Apache see us
	    		if [ -e $apacheconffile ] && grep -q "Include $gforgeconffile" $apacheconffile ; then
				remove_gforge_insert $apacheconffile
	    		fi
		else	
			# Old fashion Apache
			if [ -e $apacheconffile ] ; then
	    			cp -a $apacheconffile $apacheconffile.gforge-new
	    			perl -pi -e "s/# *LoadModule php5_module/LoadModule php5_module/gi" $apacheconffile.gforge-new
	    			perl -pi -e "s/# *LoadModule ssl_module/LoadModule ssl_module/gi" $apacheconffile.gforge-new
	    			perl -pi -e "s/# *LoadModule env_module/LoadModule env_module/gi" $apacheconffile.gforge-new
	    			perl -pi -e "s/# *LoadModule vhost_alias_module/LoadModule vhost_alias_module/gi" $apacheconffile.gforge-new
	    
	    			if ! grep -q "^Include $gforgeconffile" $apacheconffile.gforge-new ; then
					# File cleaning, just in case
					remove_gforge_insert $apacheconffile
					echo "### Next line inserted by GForge install" >> $apacheconffile.gforge-new
					echo "Include $gforgeconffile" >> $apacheconffile.gforge-new
				else
					echo "Found Include $gforgeconffile in $apacheconffile"
	    			fi
			fi
		fi
	done
	# Make sure pgsql, ldap and gd are enabled in the PHP config files
	
	for phpconffile in $PHP_ETC_LIST
	do
		cp -a $phpconffile $phpconffile.gforge-new
		if [ -f $phpconffile.gforge-new ]; then
	    		if ! grep -q "^[[:space:]]*extension[[:space:]]*=[[:space:]]*pgsql.so" $phpconffile.gforge-new; then
				echo "Enabling pgsql in $phpconffile"
				echo "extension=pgsql.so" >> $phpconffile.gforge-new
	    		fi
	    		if ! grep -q "^[[:space:]]*extension[[:space:]]*=[[:space:]]*gd.so" $phpconffile.gforge-new; then
				echo "Enabling gd in $phpconffile"
				echo "extension=gd.so" >> $phpconffile.gforge-new
	    		fi
		fi
	done
	;;
	
    configure)
	[ -f $gforgebin/prepare-vhosts-file.pl ] && su -s /bin/sh gforge -c $gforgebin/prepare-vhosts-file.pl
	if [ -f /usr/sbin/modules-config ] ; then
		for flavour in apache apache-perl apache-ssl ; do
			if [ -e /etc/$flavour/httpd.conf ] ; then
				if [ "`/usr/sbin/modules-config $flavour query mod_php5`" == "" ] ; then
	    				DEBIAN_FRONTEND=noninteractive /usr/sbin/modules-config $flavour enable mod_php5
				fi
				if [ $flavour != apache-ssl ] ; then
					if [ "`/usr/sbin/modules-config $flavour query mod_ssl`" == "" ] ; then
	    					DEBIAN_FRONTEND=noninteractive /usr/sbin/modules-config $flavour enable mod_ssl
					fi
				fi
				if [ "`/usr/sbin/modules-config $flavour query mod_env`" == "" ] ; then
	    				DEBIAN_FRONTEND=noninteractive /usr/sbin/modules-config $flavour enable mod_env
				fi
				if [ "`/usr/sbin/modules-config $flavour query mod_vhost_alias`" == "" ] ; then
	    				DEBIAN_FRONTEND=noninteractive /usr/sbin/modules-config $flavour enable mod_vhost_alias
				fi

				LINK=`ls -l /etc/$flavour/conf.d/gforge.httpd.conf | sed 's/.*-> \(.*\)$/\1/'`
				if [ "$LINK" != "$GFORGE_ETC_LIST" ] ; then 
					echo Removing symlink
					rm -f /etc/$flavour/conf.d/gforge.httpd.conf
				fi
				if [ -d /etc/$flavour/conf.d ] ; then
					[ ! -e /etc/$flavour/conf.d/gforge.httpd.conf ] && ln -s $GFORGE_ETC_LIST /etc/$flavour/conf.d/gforge.httpd.conf
				fi
			fi
		done
	fi
	# do configuring for apache2, loop through flavours not necessary
	# but it's here in case other flavours of apache2 come along
	if [ -f /usr/sbin/a2enmod ] ; then
		for flavour in apache2 ;  do
			if [ -e /etc/$flavour/httpd.conf ] ; then
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod php5 || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod ssl || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod suexec || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod vhost_alias || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod headers || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod rewrite || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod proxy || true
				DEBIAN_FRONTEND=noninteractive /usr/sbin/a2enmod proxy_http || true

				LINK=`ls -l /etc/$flavour/conf.d/gforge.httpd.conf | sed 's/.*-> \(.*\)$/\1/'`
				if [ "$LINK" != "$GFORGE_ETC_LIST" ] ; then 
					echo Removing symlink
					rm -f /etc/$flavour/conf.d/gforge.httpd.conf
				fi
				if [ -d /etc/$flavour/conf.d ] ; then
					[ ! -e /etc/$flavour/conf.d/gforge.httpd.conf ] && ln -s $GFORGE_ETC_LIST /etc/$flavour/conf.d/gforge.httpd.conf
				fi
			fi
		done
	fi
	# Check apache 2 is running
	test -f /etc/default/apache2 && . /etc/default/apache2
	for flavour in apache2 ;  do
	    if [ -x /usr/sbin/$flavour ]; then
		invoke-rc.d $flavour restart || true
	    fi
	done
	;;

    purge-files)
	for apacheconffile in $APACHE_ETC_LIST
	do
	echo "Looking at $apacheconffile"
	    	#if [ -e $apacheconffile ] && grep -q "Include $gforgeconffile" $apacheconffile ; then
	    	if [ -e $apacheconffile ] && grep -q "### Next line inserted by GForge install" $apacheconffile ; then
			remove_gforge_insert $apacheconffile
	    	fi
	done
	;;

    purge)
    	for flavour in apache apache-perl apache-ssl apache2; do
		[ -e /etc/$flavour/conf.d/gforge.httpd.conf ] && rm -f /etc/$flavour/conf.d/gforge.httpd.conf
		if [ -x /usr/sbin/$flavour ]; then
			invoke-rc.d $flavour restart < /dev/null > /dev/null 2>&1 || true
		fi
	done
	;;

    setup)
    	$0 configure-files
	for conffile in $APACHE_ETC_LIST $PHP_ETC_LIST
	do
		if [ -f $conffile.gforge-new ] 
		then
			cp $conffile $conffile.gforge-old
			mv $conffile.gforge-new $conffile
		fi
	done
	$0 configure
	;;

    cleanup)
    	$0 purge-files
	for conffile in $APACHE_ETC_LIST $PHP_ETC_LIST
	do
		if [ -f $conffile.gforge-new ] 
		then
			cp $conffile $conffile.gforge-old
			mv $conffile.gforge-new $conffile
		fi
	done
	$0 purge
	;;

    *)
	echo "Usage: $0 {configure|configure-files|purge|purge-files|setup|cleanup}"
	exit 1
	;;
	
esac