#!/usr/local/bin/bash 

MAILFOLDER=$HOME/htmldocs/mailarchive/
MKDIR="mkdir -p"
TMPFILE=`mktemp /tmp/mailiarchXXXXXXXXXX`
LOG=$MAILFOLDER/log

# Procmail postfilter for adding files to a directory structure for flat-file
#  databasing of incoming emails sorted by date.
#  Tree format will be YYYY/MM/DD/
#  File format will be HHMMS-$(subject)

# First, create file
cat > $TMPFILE

# Now, parse out the date
dateline=`grep "^Date: " $TMPFILE | head -n 1`
# Did it find a Date: line?
if [ $? = 0 ]; then
	# Place remainder of program here.
	# sample date line from my inbox:
	# Date: Fri, 2 Jan 2009 14:58:39 -0800
	day=`echo $dateline | cut -d\  -f3`
	month=`echo $dateline | cut -d\  -f4`
	YEAR=`echo $dateline | cut -d\  -f5`
	TIME=`echo $dateline | cut -d\  -f6 |sed s/://g`
	# Ok, we have the parameters.  Lets work out a number for the month.
	case $month in
		"Jan")
			MM=01
			;;
		"Feb")
			MM=02
			;;
		"Mar")
			MM=03
			;;
		"Apr")
			MM=04
			;;
		"May")
			MM=05
			;;
		"Jun")
			MM=06
			;;
		"Jul")
			MM=07
			;;
		"Aug")
			MM=08
			;;
		"Sep")
			MM=09
			;;
		"Oct")
			MM=10
			;;
		"Nov")
			MM=11
			;;
		"Dec")
			MM=12
			;;
	esac

	# Does the day have one digit?
	if [ $day  -lt  10 ]; then
		# add one.
		DAY=0$day
	else
		# day is okay.
		DAY=$day
	fi

	# We now have all the stuff.
	# Make a directory and have it fail silently.
	mkdir -p $MAILFOLDER/$YEAR/$MM/$DAY 2>/dev/null

	# We'll check this one just to ensure the archive works.
	cat $TMPFILE > $MAILFOLDER/$YEAR/$MM/$DAY/$TIME 2>/dev/null
	if [ $? != 0 ]; then
		echo $0: `date` "Failed to record file at "$MAILFOLDER/$YEAR/$MM/$DAY/$TIME"
	else
		echo $0: `date` "Recorded file at "$MAILFOLDER/$YEAR/$MM/$DAY/$TIME"
	fi

else # no date found.
	echo $0: `date` "Failed to find date file in email." >> $LOG
fi