#!/bin/sh
# : Rnmail.SH,v 4.3.1.3 85/05/20 16:25:17 lwall Exp $
# 
# :	Rnmail.SH,v $
# Revision 4.3.1.3  85/05/20  16:25:17  lwall
# Shouldn't ask editor if EDITOR or VISUAL defined.
# 
# Revision 4.3.1.2  85/05/17  10:36:19  lwall
# Added "-- " before .signature.
# 
# Revision 4.3.1.1  85/05/10  11:30:38  lwall
# Branch for patches.
# 
# Revision 4.3  85/05/01  11:34:18  lwall
# Baseline for release with 4.3bsd.
# 
#
# syntax: Rnmail -h headerfile [oldart]		or
#         Rnmail destination-list 		or just
#         Rnmail

export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0; kill $$)

# System dependencies

mailer="/usr/lib/sendmail"
# if you change this to something that does signatures, take out signature code

# your site name
case define in
define) sitename=`hostname` ;;
undef) sitename="ucbvax" ;;
esac
# your organization name
orgname="University of California, Berkeley"
# what pager you use--if you have kernal paging use cat
pager="${PAGER-/usr/ucb/more}"
# how you derive full names, bsd, usg, or other
nametype="bsd"
# default editor
defeditor="/usr/ucb/vi"
# how not to do a newline with echo
n="-n"
c=""

test=/bin/test
sed=sed
echo=echo
cat=cat
grep=grep
rm=rm

tmpart=/tmp/rnmail$$
dotdir=${DOTDIR-${HOME-$LOGDIR}}

headerfile=""
case $# in
0) ;;
*)  case $1 in
    -h)
	headerfile="$2"
	case $# in
	3) oldart=$3 ;;
	esac
	;;
    esac
    ;;
esac

case $headerfile in
'')
    case $# in
    0)
	to=h
	while $test "$to" = h ; do
	    $echo ""
	    $echo $n "To: $c"
	    read to
	    case $to in
	    h)
		$cat <<'EOH'

Type the net address of those people that you wish the message sent to.
Note that you will be asked later for additional addresses of people to
whom the message is not addressed but you wish to get copies.

Separate multiple addresses with spaces.

EOH
		;;
	    esac
	done
	;;
    *)
	to="$*"
	;;
    esac
    to=`$echo "$to" | $sed 's/  */ /g'`

    title=h
    while $test "$title" = h ; do
	$echo ""
	$echo $n "Title/Subject: $c"
	read title
	case $title in
	h)
	    $cat <<'EOH'

Type the title for your message.  
EOH
	    ;;
	esac
    done

# now build a file with a header for them to edit
    
    orgname=${ORGANIZATION-$orgname}
    case $orgname in
    /*) orgname=`$cat $orgname` ;;
    esac

    $cat > $tmpart <<EOHeader
To: $to
Subject: $title
Organization: $orgname
Cc:
Bcc:

EOHeader

    ;;
*)
    $cat < $headerfile  > $tmpart
    ;;
esac


file=h
while $test "$file" = h ; do
    $echo ""
    $echo $n "Prepared file to include [none]: $c"
    read file
    case $file in
    h)
	$cat <<'EOH'

If you have already produced the body of your message, type the filename
for it here.  If you just want to proceed directly to the editor, type a
RETURN.  In any event, you will be allowed to edit as many times as you
want before you send off the message.
EOH
	;;
    '')
	$echo "" >> $tmpart
	state=edit
	;;
    *)
	$cat $file >>$tmpart
	state=ask
	;;
    esac
done

$echo ""

while true ; do
    case $state in
    edit)
	rescue="sleep 1; $cat $tmpart >>${HOME-$LOGDIR}/dead.letter ; $echo saved in ${HOME-$LOGDIR}/dead.letter ; $rm -f $tmpart; exit"
	trap "$rescue" 1
	trap : 2
	case "${VISUAL-${EDITOR-}}" in
	'')
	    tmp=h
	    ;;
	*)
	    tmp=''
	    ;;
	esac
	while $test "$tmp" = h ; do
	    $echo $n "Editor [${VISUAL-${EDITOR-$defeditor}}]: $c"
	    read tmp
	    case $tmp in
	    h)
		$cat <<'EOH'

Type a return to get the default editor, or type the name of the editor you
prefer.  The default editor depends on the VISUAL and EDITOR environment
variables.

EOH
		;;
	    '')
		;;
	    *)
		VISUAL=$tmp
		export VISUAL
		;;
	    esac
	done
	${VISUAL-${EDITOR-$defeditor}} $tmpart $oldart
	trap "$rescue" 2
	state=ask
	;;
	
    ask)
	$echo ""
	$echo $n "Send, abort, edit, or list? $c"
	read ans
	
	case $ans in
	a*)
	    state=rescue
	    ;;
	e*)
	    state=edit
	    ;;
	l*)
	    $pager $tmpart
	    state=ask
	    ;;
	s*)
	    state=send
	    ;;
	h*)
	    $cat <<'EOH'

Type s to send the message, a to abort and append the message to dead.letter,
e to edit the message again, or l to list the message.
EOH
	esac
	;;
    
    send)
	if $test -f $dotdir/.signature; then
	    echo $n "Append .signature file? [y] $c"
	    read ans
	    case $ans in
	    ''|y*)
		echo "-- " >> $tmpart
		cat $dotdir/.signature >> $tmpart
		;;
	    esac
	fi
	case $mailer in
	*sendmail)
	    $mailer -t <$tmpart
	    ;;
# but recmail does not know about Bcc, alas
	*recmail)
	    $mailer <$tmpart
	    ;;
	*)
	    set X `$sed <$tmpart -n -e '/^To:/{' -e 's/To: *//p' -e q -e '}'`
	    shift
	    set X "$@" `$sed <$tmpart -n -e '/^Cc:/{' -e 's/Cc: *//p' -e q -e '}'`
	    shift
	    set X "$@" `$sed <$tmpart -n -e '/^Bcc:/{' -e 's/Bcc: *//p' -e q -e '}'`
	    shift
	    $grep -v "^Bcc:"  <$tmpart | $mailer "$@"
	    ;;
	esac
	case $? in
	0)
	    state=cleanup
	    ;;
	*)
	    state=rescue
	    ;;
	esac
	;;
    rescue)
	$cat $tmpart >> ${HOME-$LOGDIR}/dead.letter
	$echo "Message saved to ${HOME-$LOGDIR}/dead.letter"
	state=cleanup
	;;
    cleanup)
	$rm -f $tmpart
	exit
	;;
    esac
done