#!/bin/sh

. /usr/local/etc/dropbox.conf

sleep 2

date=`date -v -5M "+%Y%m%d%H%M"`
mtime_date=`date -v -5M "+%s"`
logfile="${dropbox_log_dir}/access.log.${date}"

echo $date

if [ -e ${logfile} ]; then

	echo "open ${logfile}"

	# get the last-modified time of the logfile, needed to delete leaked logfile which can happen during downtime
	mtime_date=`stat -t "%s" -f "%m" ${logfile}`

	# get lines that match the form "/<hash>/<hash>/-<size> 200"
	for tag in `cut -d ' ' -f1,2 ${logfile} | grep '^/[a-z0-9]\+/[a-z0-9]\+/-[0-9]\+ 200\$'|cut -d ' ' -f1`; do
		# devide the match at "-", first part is link to mailbox, second is the response-size delivered for the request
		echo "Working on tag ${tag}"
		link=${tag%%/-*}
		size=${tag##*-}

		# check if the link to mailbox exists, otherwise set the size to 0 to prevent wierd things
		if [ -e ${dropbox_mail_dir}/${link} ]; then
			echo -n " ${dropbox_mail_dir}/${link} -> "
			mailbox=`stat -f "%Y" ${dropbox_mail_dir}/${link}`
			echo ${mailbox}
		else
			size='0'
		fi

		# if the size of the response is larger than 0 (a mail was delivered), delete the mailbox
		if [ "${size}" != "0" ]; then
			echo " remove mailbox ${mailbox} (size: ${size})"
			rm -rf ${mailbox}
			echo " remove link ${dropbox_mail_dir}/${link}"
			rm -rf ${dropbox_mail_dir}/${link}
		else
			echo " mailbox is empty"
		fi
	done

fi

rm -f ${logfile}

# find all leaked access logs
echo " Check for leaked logfiles"
for leak_logfile in `find ${dropbox_log_dir} -name 'access.log.*'`; do

        # get the last-modified time of the logfile in question
        mtime=`stat -t "%s" -f "%m" ${leak_logfile}`

	echo -n " ${leak_logfile} "
        if [ ${mtime} -le ${mtime_date} ]; then
                echo "leaked, deleted"
                rm -f ${leak_logfile}
	else
		echo "okay"
        fi

done