Checks for annoying occurrences in the content of websites & database

coast-guard-observer.sh

#!/bin/sh
#
# cron ex: 0 */6 * * * /usr/bin/nice -n 19 /usr/bin/ionice -c2 -n7 /root/scripts/coast-guard-observer.sh >> /root/scripts/cron.log

dir="/tmp/"
file="/var/www/clients/client*/web*/web"
email=""
pattern="vicodin|viagra|xanax|valium|silagra|kamagra|propranolol|celexa|albendazole|propecia|ampicillin|amoxil|neurontin|levitra|pharmacy|rolex|casino|cialis " # Need regexp for occurence like cialis (prevent specialist word)
# TODO: Add whitelist
#whitelist=""
# TODO: MySQL Support
#dbserver="localhost"
#dbuser="coast-guard-observer"
#dbpassword=""

cd $dir

if [ -f ./coast-guard-observer ]
then
	if [ -f ./coast-guard-observer-last ]
	then
		rm ./coast-guard-observer-last
	fi

	mv ./coast-guard-observer ./coast-guard-observer-last
	touch ./coast-guard-observer
	chmod -R 777 ./coast-guard-observer
else
	touch ./coast-guard-observer
	chmod -R 777 ./coast-guard-observer
fi

grep -E $pattern -R $file > ./coast-guard-observer

if [ -f ./coast-guard-observer-last ]
then
	if diff ./coast-guard-observer ./coast-guard-observer-last >/dev/null ;
	then
		rm ./coast-guard-observer
	else
		contain=$(diff ./coast-guard-observer ./coast-guard-observer-last)
		echo -e "Coast Guard Observer possible detection:\n $contain" | mail -s "/!\ Coast Guard Observer possible detection" $email
	fi
fi