#!/bin/bash
# info: updating ssh rrd

#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument defenition
rrd_start="${1--1d}"
rrd_end="${2-now}"
rrd_grid="${3-MINUTE:30:HOUR:1:HOUR:4:0:%H:%M}"

# Importing variables
source $VESTA/conf/vars.conf
source $V_CONF/vesta.conf


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Checking directory
if [ ! -d "$V_RRD/ssh" ]; then
    mkdir $V_RRD/ssh
fi

# Checking database
if [ ! -e "$V_RRD/ssh/ssh.rrd" ]; then
    # Adding database
    rrdtool create $V_RRD/ssh/ssh.rrd --step $V_RRD_STEP \
        DS:A:GAUGE:600:U:U \
        RRA:AVERAGE:0.5:1:600 \
        RRA:AVERAGE:0.5:6:700 \
        RRA:AVERAGE:0.5:24:775 \
        RRA:AVERAGE:0.5:288:797 \
        RRA:MAX:0.5:1:600 \
        RRA:MAX:0.5:6:700 \
        RRA:MAX:0.5:24:775 \
        RRA:MAX:0.5:288:797
fi

# Parsing data
if [ -z "$1" ]; then
    a=0
    a=$(ps auxf|grep sshd |grep -v grep |grep -v '/usr/sbin/'| wc -l)

    # Updating rrd database
    rrdtool update $V_RRD/ssh/ssh.rrd N:$a
fi

# Updating daily graph
rrdtool graph $V_RRD/ssh/ssh.png \
    --imgformat PNG \
    --height="120" \
    --width="440" \
    --start "$rrd_start" \
    --end "$rrd_end" \
    --title "SSH Usage" \
    --vertical-label "Connections" \
    --x-grid "$rrd_grid" \
    -c "BACK#484439" \
    -c "SHADEA#484439" \
    -c "SHADEB#484439" \
    -c "FONT#DDDDDD" \
    -c "CANVAS#202020" \
    -c "GRID#666666" \
    -c "MGRID#AAAAAA" \
    -c "FRAME#202020" \
    -c "ARROW#FFFFFF" \
    DEF:a=$V_RRD/ssh/ssh.rrd:A:AVERAGE \
    COMMENT:'\r' \
    LINE1:a#fefda0:"Users " \
    GPRINT:a:'LAST:Current\:''%8.0lf' \
    GPRINT:a:'MIN:Min\:''%8.0lf' \
    GPRINT:a:'MAX:Max\:''%8.0lf\j'  >/dev/null 2>/dev/null; result=$?


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

if [ "$result" -ne 0 ]; then
    exit $E_RRD_FAILED
fi

exit $OK