#!/bin/bash
source /usr/lib/nagios/plugins/utils.sh

PROGNAME=`basename $0`
status_query_default="/status"

print_usage() {
	echo "Usage: $PROGNAME -H fe.host.ru [-Q /status] [-F]"
	echo "Options:"
	echo "-H - Hostname where nginx server is running"
	echo "-Q - Query string, like /status [Default: $status_query_default]"
	echo "-F - show performance data"
}

print_help() {
        echo $PROGNAME $REVISION
        echo ""
        print_usage
        echo ""
	echo "Will show connections info"
        echo ""
	
        exit $UNKNOWN
}


### Parse Arguments

while getopts ":hV:H:Q:F" Option; do
	case $Option in
		h)
			print_help
			exit 0
			;;
		V)
			print_revision $PROGNAME $REVISION
			exit 0
			;;
		H)
			status_host=${OPTARG}
			;;

		Q)
			status_query=${OPTARG}
			;;

                F)
		        show_perfdata="yes"
			;;
											
		*)
			print_help
			exit 0
			;;
	esac
done
shift $(($OPTIND - 1))


if [[ "x$status_host" == "x" ]]
then
    echo "No hostname specified, hostname should be like host.ru"
    exit $STATE_UNKNOWN
fi

if [[ "x$status_query" == "x" ]]
then
    #echo "No query specified, query should be like /status"
    #exit $STATE_UNKNOWN
    status_query=$status_query_default

fi
status_url="${status_host}$status_query"
#URL=$1
reslt=$(lynx --dump $status_url|head -n 3|tail -n 1)
reslt_code=$?
#echo "return $reslt_code"
if [[ "x$reslt_code" != "x0" ]]
then
    echo "lynx returned $reslt_code as return code, message is:$reslt"
    exit $STATE_UNKNOWN
fi

if [[ "x$reslt" != "x" ]]
then
    EXITTEXT="not actual check: $reslt"
    if [[ "x$show_perfdata" == "xyes" ]]
    then
	DATA_TMP=`mktemp /tmp/nagios_check.XXXXXXXX`
	echo $reslt > $DATA_TMP
	#echo "result is:$reslt" >> /tmp/nagios.frontendtest.log
	read fe_accepts fe_handled fe_requests fe_rest < $DATA_TMP
	rm -rf $DATA_TMP
	#echo "fe_accepts:$fe_accepts" >> /tmp/nagios.frontendtest.log
	#echo "fe_handled:$fe_handled" >> /tmp/nagios.frontendtest.log
	#echo "fe_requests:$fe_requests" >> /tmp/nagios.frontendtest.log
	k=0
	for i in $fe_accepts $fe_handled $fe_requests
	do
	    let k+=1
	    c=0
	    #echo "i is $i"
	    valuecheck=$(let "c+=$i")
	    if [[ ($? != 0 ) || (($c < 0)) ]]
	    then
		#echo "fuck! $c"
		exit_unknown="yes"
		fe_connections[$k]=0
	    else
		fe_connections[$k]=$i
	    fi
	done
	EXITTEXT="${EXITTEXT}|'fe_accepts'=${fe_connections[1]}c;;;0; 'fe_handled'=${fe_connections[2]}c;;;0; 'fe_requests'=${fe_connections[3]}c;;;0;"
	#echo "exit text: $EXITTEXT" >> /tmp/nagios.frontendtest.log
    fi
    echo $EXITTEXT
    if [[ "x$exit_unknown" == "xyes" ]]
    then
	exit $STATE_UNKNOWN
    fi
else
    echo "status is empty, whattafuck?"
    exit $STATE_UNKNOWN
fi