nagios4/debian/httpd.webapps-common

# httpd-related functions
# taken from the webapps-common project
# copyright (c) 2005, sean finney (GPL)

wc_httpd_apaches="apache2"

# if they have not specified what they support, assume support for all
if [ ! "$wc_httpd_supported" ]; then
	wc_httpd_supported="$wc_httpd_apaches"
fi

#
# wc_httpd_installed: test for installed httpds
# usage:
#	wc_httpd_installed [ httpd1 httpd2 ... ]
#
# no arguments implies to test for all servers
wc_httpd_installed(){
	local httpds
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=$wc_httpd_supported
	fi
	for f in $httpds; do
		if test -x /usr/sbin/$f; then
			echo $f
		fi
	done
}

#
# wc_httpd_running: test for running httpds
# usage:
#	wc_httpd_running [ httpd1 httpd2 ... ]
#
# no arguments implies to test for all servers
wc_httpd_running(){
	local httpds
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=$wc_httpd_supported
	fi
	for f in $httpds; do
		if pgrep -fx "/usr/sbin/$f( .*)*$" >/dev/null; then
			echo $f
		fi
	done
}

# wc_httpd_invoke: issue start/stop/etc command to web server init script
# usage:
#	wc_httpd_invoke {start|stop|status|whatever} [ httpd1 httpd2 ... ]
#
# no servers implies to invoke all running servers
wc_httpd_invoke(){
	local httpds cmd err
	if [ ! "$1" ]; then
		echo "i need at least a command!" 2>&1
		return 1
	fi
	cmd="$1"
	shift
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=`wc_httpd_running`
	fi
	for f in $httpds; do
		if [ -x /etc/init.d/$f ]; then
			invoke-rc.d $f $cmd || return $?
		fi
	done
}

# wc_httpd_apache_include:	include a file in the apache configuration
# usage:
#	wc_httpd_apache_include file name [ httpd1 httpd2 ... ]
#
# no arguments implies all installed apache servers
wc_httpd_apache_include(){
	local h incfile httpds confdir
	if [ ! "$1" ]; then
		echo "i need at least a file!" 2>&1
		return 1
	fi
	incfile="$1"
	shift
	if [ ! "$1" ]; then
		echo "i also need a name!" 2>&1
		return 1
	fi
	name="$1"
	shift
	if [ ! -e "$incfile" ]; then
		echo "include file $incfile does not exist!" 2>&1
		return 1
	fi
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=`wc_httpd_installed $wc_httpd_supported`
	fi
	for h in $httpds; do
		confdir="/etc/$h/conf.d"
		conflink="$confdir/${name}.conf"
		if [ -d "$confdir" -a ! -e "$conflink" ]; then
			ln -s "$incfile" "$conflink"
		fi
	done
}

# wc_httpd_apache_configured:	determine what servers are configured for a pkg
# usage:
#	wc_httpd_apache_configured file name [ httpd1 httpd2 ... ]
#
# no arguments implies all installed apache servers
# outputs the list of servers that are configured with file->name
wc_httpd_apache_configured(){
	local h incfile httpds confdir
	if [ ! "$1" ]; then
		echo "i need at least a file!" 2>&1
		return 1
	fi
	incfile="$1"
	shift
	if [ ! "$1" ]; then
		echo "i also need a name!" 2>&1
		return 1
	fi
	name="$1"
	shift
	if [ ! -e "$incfile" ]; then
		echo "include file $incfile does not exist!" 2>&1
		return 1
	fi
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=`wc_httpd_installed $wc_httpd_supported`
	fi
	for h in $httpds; do
		confdir="/etc/$h/conf.d"
		conflink="$confdir/${name}.conf"
		if [ -L "$conflink" ]; then
			echo "$h "
		fi
	done
}

# wc_httpd_apache_uninclude:	uninclude a file in the apache configuration
# usage:
#	wc_httpd_apache_uninclude file name [ httpd1 httpd2 ... ]
#
# no arguments implies all installed apache servers
wc_httpd_apache_uninclude(){
	local h incfile name httpds conflink
	if [ ! "$1" ]; then
		echo "i need at least a file!" 2>&1
		return 1
	fi
	incfile="$1"
	shift
	if [ ! "$1" ]; then
		echo "i also need a name!" 2>&1
		return 1
	fi
	name="$1"
	shift
	if [ ! -e "$incfile" ]; then
		echo "include file $incfile does not exist!" 2>&1
		return 1
	fi
	if [ "$*" ]; then
		httpds=$*
	else
		httpds=`wc_httpd_installed $wc_httpd_supported`
	fi
	for h in $httpds; do
		conflink="/etc/$h/conf.d/${name}.conf"
		if [ -L "$conflink" ]; then
			rm -f "$conflink"
		elif [ -e "$conflink" ]; then
			echo "warning: $conflink exists but is not a link" >&2
		fi
	done
}