pkg://nagios-common_1.3-cvs.20050402-2.sarge.2_all.deb:1219662/postinst  info  downloads

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

set -e

# Source debconf library.
. /usr/share/debconf/confmodule

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see /usr/doc/packaging-manual/
#
# quoting from the policy:
#     Any necessary prompting should almost always be confined to the
#     post-installation script, and should be protected with a conditional
#     so that unnecessary prompting doesn't happen if a package's
#     installation fails and the `postinst' is called with `abort-upgrade',
#     `abort-remove' or `abort-deconfigure'.

# Restart apache/apache-ssl
restartapache () {
	if [ -x "/etc/init.d/apache2" ]; then
		invoke-rc.d apache2 reload || true
	else
	    for apache in $webservers; do
		    if [ -x "/etc/init.d/$apache" ]; then
				invoke-rc.d $apache reload || true
		    fi
	    done
    fi
}

# Automatic Apache Configuration:
configapache () {
	removeoldapache
    for apache in $webservers; do
	if [ -d "/etc/$apache/conf.d" -a ! -e "/etc/$apache/conf.d/nagios" ]; then
		ln -s /etc/nagios/apache.conf /etc/$apache/conf.d/nagios
	fi
    done

    restartapache
}

# Remove old entries in httpd.conf
removeoldapache () {
    for apache in $webservers; do

	if [ "$apache" = "apache2" ]; then
	    conf=apache2.conf
	else
	    conf=httpd.conf
	fi
	
	# XXX this is a temporary hack, this all needs to be reworked
	if [ -f "/etc/$apache/$conf" ]; then
		if grep -qs "^Include /etc/nagios/apache.conf" /etc/$apache/$conf; then
			mv -f /etc/$apache/$conf /etc/$apache/$conf.old.nagios
			grep -v "^Include /etc/nagios/apache.conf" /etc/$apache/$conf.old.nagios \
				> /etc/$apache/$conf
		fi
		if ! grep -qs "^Include /etc/$apache/conf.d" /etc/$apache/$conf; then
			cp -f /etc/$apache/$conf /etc/$apache/$conf.old.nagios
			echo "Include /etc/$apache/conf.d" >> /etc/$apache/$conf
		fi
		if [ -f /etc/$apache/$conf.old.nagios ]; then
			mv -f /etc/$apache/$conf.old.nagios /etc/$apache/$conf.old
		fi
	fi
    done
}

# Do postinst
case "$1" in
    configure|upgrade)

    # Apache/Apache-SSL location. Apache2 is overwritten below
	htpasswd="/usr/bin/htpasswd"

	db_get nagios/configapache
	webserver="$RET"
	case "$webserver" in
	    Apache)        webservers="apache";;
	    Apache2)       webservers="apache2" ; htpasswd="/usr/bin/htpasswd2";;
	    Apache-SSL)    webservers="apache-ssl";;
	    Both)          webservers="apache apache-ssl";;
	    *)             webservers="";;
	esac

	if [ -e "/usr/bin/htpasswd-caudium" -a -z "$webservers" ]; then
	    htpasswd="/usr/bin/htpasswd-caudium"
	fi

	if [ ! -z "$webservers" ]; then
		configapache
	fi

	if [ -e "$htpasswd" ]; then
	    db_get nagios/adminpassword
	    if [ -z "$RET" ]; then
		echo "Not setting blank password for nagiosadmin"
	    elif [ ! -f /etc/nagios/htpasswd.users ] ; then
		# The passwd file don't exists
		$htpasswd -c -b /etc/nagios/htpasswd.users nagiosadmin "$RET"
	    else
		echo "Nagiosadmin already existing with password. To change the"
		echo "password, please use the $htpasswd command."
	    fi
	else
		cat <<EOF
There is no htpasswd command, so I can't create the password file
for you.  If you want to use nagios with apache You will have to figure
out a way to create a htpasswd file yourself.  If you've chosen
to configure apache (or some other web server) manually, you can safely
disregard this.  Otherwise, the htpasswd file should be called:
	/etc/nagios/htpasswd.users
and be mode 0640, owned by root, group www-data.
	chown root:www-data /etc/nagios/htpasswd.users
	chmod 0640 /etc/nagios/htpasswd.users
EOF
	fi

	db_get nagios/wwwsuid
	if [ "$RET" = "true" ] ; then
		chown nagios /usr/lib/cgi-bin/nagios/*cgi
		chmod u+s /usr/lib/cgi-bin/nagios/*cgi
		for f in /usr/lib/cgi-bin/nagios/*.cgi; do
			if ! dpkg-statoverride --list "$f" >/dev/null; then
				dpkg-statoverride --add nagios root 4755 "$f"
			fi
		done
		perl -wpi -e 's[^check_external_commands=0][check_external_commands=1]' /etc/nagios/nagios.cfg
	else
		chmod u-s /usr/lib/cgi-bin/nagios/*cgi
		for f in /usr/lib/cgi-bin/nagios/*.cgi; do
			if dpkg-statoverride --list "$f" >/dev/null; then
				dpkg-statoverride --remove "$f"
			fi
		done
		perl -wpi -e 's[^check_external_commands=1][check_external_commands=0]' /etc/nagios/nagios.cfg
	fi

	# We are finished with debconf
	db_stop

	if [ -f /etc/nagios/htpasswd.users ]; then
	    # Make sure some files aren't world readable, may contain sensitive information
	    chmod 640 /etc/nagios/htpasswd.users /etc/nagios/cgi.cfg /etc/nagios/resource.cfg
	    chgrp www-data /etc/nagios/htpasswd.users
	fi

        UDIR=/usr/share/nagios ; EDIR=/etc/nagios

	## Conf files have moved:
        for f in `find $UDIR/robots.txt $UDIR/*html 2> /dev/null`; do
		if [ -f $f -a ! -L $f ] ; then
                	mv -f $f /etc/nagios/
		fi
        done

	## Sym links for conf files:
        for f in `find $EDIR/robots.txt $EDIR/*html 2> /dev/null`; do
		if [ ! -e /usr/share/nagios/htdocs/`basename $f` ] ; then
                	ln -s $f /usr/share/nagios/htdocs/
		fi
        done

	for s in `find $UDIR/index.html $UDIR/main.html $UDIR/side.html $UDIR/robots.txt 2> /dev/null`; do
	    if [ ! -h $s ] ; then
		rm -f $s
	    fi
	done
	
	;;
    abort-upgrade|abort-remove|abort-deconfigure)
	;;
    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 0
	;;
esac

# Setup the address to the default gateway
if [ ! -f /etc/nagios/hosts.cfg ]; then
    set -- `route -n | grep '^0.0.0.0' | head -n1`
    DEFAULTGW=$2

    TMPFILE=`tempfile -p nag.`
    zcat /usr/share/doc/nagios-common/examples/template-object/hosts.cfg.gz | sed "s/@DEFAULT_GW@/$DEFAULTGW/" > $TMPFILE
    mv $TMPFILE /etc/nagios/hosts.cfg
fi

if [ ! -L /usr/lib/nagios/plugins/check_nagios -a \
     ! -f /usr/lib/nagios/plugins/check_nagios -a \
       -e /usr/lib/nagios/plugins/check_netsaint ]
then
    (cd /usr/lib/nagios/plugins ; \
     ln -s /usr/lib/nagios/plugins/check_netsaint check_nagios)
fi

# Make sure the config file is readable by both nagios
# and apache
chown -R nagios:www-data /var/log/nagios /etc/nagios /var/run/nagios /var/cache/nagios
chmod 750 /etc/nagios/cgi.cfg

# Automatically added by dh_installinit
if [ -x "/etc/init.d/nagios" ]; then
	update-rc.d nagios defaults 30 >/dev/null
	if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
		invoke-rc.d nagios start || exit 0
	else
		/etc/init.d/nagios start || exit 0
	fi
fi
# End automatically added section