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## GOPHER HIT COUNTER FOR USE WITH GOPHERNICUS                      ##
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# For use with the Gophernicus gopher server                         #
#                                                                    #
# Save this file as  counter.sh where your gophermap is stored.      #
# Change permissions of the file to be +X executable                 #
# From a shell issue: chmod +x counter.sh                            #
# Or use your FTP/SFTP client to make the file +X executable         #
#                                                                    #
# In your gophermap, include this line where you want the counter to #
# to appear:                                                         #
# =./counter.sh                                                      #
#                                                                    #
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#!/bin/sh

# Figure out a safe file to keep our counter
HASH=`echo "$SELECTOR" | md5sum | cut -d" " -f1`
FILE=/var/tmp/gopher-counter-$HASH

# Get count and the previous visitors IP address
if [ -f $FILE ]; then
	COUNT="`cut -d' ' -f1 $FILE`"
else
	COUNT="1"
fi
OLD_ADDR="`cut -d' ' -f2 $FILE`"

# Increase counter only if the user is new
if [ "$OLD_ADDR" != "$REMOTE_ADDR" ]; then
	COUNT=$(( COUNT + 1 ))
	echo "$COUNT $REMOTE_ADDR" > $FILE
fi

# Output counter message
echo "$1$COUNT$2 People have visited this Gopher Hole"

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## END counter.sh                                                   ##
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