#!/bin/sh
#
# Copyright (C) 2006 Benjamin Schweizer. All rights reserved.
#
#
# Abstract
# ~~~~~~~~
# munin plugin that logs the cache efficiency
#
# Authors
# ~~~~~~~
# Benjamin Schweizer <code at benjamin-schweizer dot de>
#
# Changes
# ~~~~~~~
# 2006-10-11, schweizer: initial release.
#
# Todo
# ~~~~
# - we'll see
#
#%# family=auto
#%# capabilities=autoconf


if [ "$1" = "autoconf" ]; then
	SQUID_STATS=`printf "GET cache_object://localhost/info HTTP/1.0\n\n" | netcat localhost 3128`
	if [ -n "${SQUID_STATS}" ]; then
		echo yes 
		exit 0
	else
		echo "no (HTTP GET failed)"
		exit 1
	fi
fi

if [ "$1" = "config" ]; then
	echo 'graph_title Squid Efficiency'
	echo 'graph_info This graph shows the proxy efficiency.'
	echo 'graph_category squid'
	echo "graph_args --lower-limit 0 --upper-limit 100"
	echo 'graph_vlabel %'
#	echo 'graph_scale no'
#	echo "graph_order request5 request60 byte5 byte60"

	echo 'request5.label request5'
#	echo 'request5.draw AREA'
#	echo 'request5.max 100'
#	echo 'request5.min 0'
#	echo 'request5.type DERIVE'
	echo "request5.info request5" 

	echo 'request60.label request60'
#	echo 'request60.draw AREA'
#	echo 'request60.max 100'
#	echo 'request60.min 0'
#	echo 'request60.type DERIVE'
	echo "request60.info request5" 

	echo 'byte5.label byte5'
#	echo 'byte5.draw AREA'
#	echo 'byte5.max 100'
#	echo 'byte5.min 0'
#	echo 'byte5.type DERIVE'
	echo "byte5.info request5" 

	echo 'byte60.label byte60'
#	echo 'byte60.draw AREA'
#	echo 'byte60.max 100'
#	echo 'byte60.min 0'
#	echo 'byte60.type DERIVE'
	echo "byte60.info request5" 

	exit 0
fi

SQUID_STATS=`printf "GET cache_object://localhost/info HTTP/1.0\n\n" | netcat localhost 3128`
#        Request Hit Ratios:     5min: 0.0%, 60min: 17.4%
#        Byte Hit Ratios:        5min: 75.0%, 60min: 12.0%

SQUID_REQUEST_HIT_5=`echo "$SQUID_STATS" | grep "Request Hit Ratios" | cut -d ":" -f3 | cut -d "." -f1`
SQUID_REQUEST_HIT_60=`echo "$SQUID_STATS" | grep "Request Hit Ratios" | cut -d ":" -f4 | cut -d "." -f1`
SQUID_BYTE_HIT_5=`echo "$SQUID_STATS" | grep "Byte Hit Ratios" | cut -d ":" -f3 | cut -d "." -f1`
SQUID_BYTE_HIT_60=`echo "$SQUID_STATS" | grep "Byte Hit Ratios" | cut -d ":" -f4 | cut -d "." -f1`

echo "request5.value${SQUID_REQUEST_HIT_5}"
echo "request60.value${SQUID_REQUEST_HIT_60}"
echo "byte5.value${SQUID_BYTE_HIT_5}"
echo "byte60.value${SQUID_BYTE_HIT_60}"

# eof.