initial commit

bbsh

@@ -0,0 +1,171 @@
+#!/bin/sh
+
+BDIR="/var/bbs/boards"
+
+###### 
+NUMW='3'
+BRDW='18'
+TITW='50'
+TRDW='12'
+TOTW="$(echo "$NUMW+$BRDW+$TITW+$TRDW" | bc)"
+HR="------------------------------------------------------------------------------\n"
+
+
+#set -x
+
+######
+PROMPT='COMMAND :> '
+DFLTBOARD=""
+DFLTPAGER=${PAGER:-"less"}
+CURBOARD=${1:-"$DFLTBOARD"}
+
+##function
+__prompt(){
+
+	printf '[%s] %s' "$CURBOARD" "$PROMPT"	
+}
+
+##function
+__board_prompt(){
+	printf "%s" "Go to which board? (use index) "
+}
+
+##function
+__thread_prompt(){
+	printf "%s" "Read which thread? "
+}
+
+##function
+select_board(){
+	__board_prompt
+	read -r board
+	NEW_BOARD="$(ls "$BDIR" | tail -n +"$board" | head -1)"
+	[ -z "${NEW_BOARD}" ] && echo "invalid board number" && return 1
+	return 0
+
+}
+
+##function
+get_boards(){
+	echo $(ls "${BDIR}")
+}
+
+
+##function
+show_boards(){
+
+	printf -- "$HR"
+	for b in $(get_boards); do
+		t="$(head -1 "$BDIR/$b"/topic | sed -E 's/^(.{50}).*/\1/g')"
+		n="$(ls "$BDIR/$b" | grep -E "^[0-9]+" | wc -l | sed -E 's/ //g')"
+		printf "%-"$BRDW"s %-"$TITW"s [ %2s boards ]\n" "$b" "$t" "$n"
+	done | sort | nl -v1 -w3 -s " " 
+	printf -- "$HR"
+
+}
+
+##function
+show_help(){
+
+	printf '%s\n' \
+		'	[Bulletin Boards Commands]'\
+		'	----------------------------------------------------------'\
+		'	(l)ist ......... List all available boards'\
+		'	(g)oto ......... Goto a board by name or number'\
+		'	(h)elp ......... Show this help message'\
+		'	(m)essages...... List all messages in current board'\
+		'	(t)ype ......... Display the contents of a message thread'\
+		'	(q)uit ......... Quit bbsh'
+}
+
+##function
+print_thread_title(){
+
+	date="$(echo "$(basename $1)" | cut -d "-" -f 1 )"
+	author="$(echo "$(basename $1)" | cut -d "-" -f 2)"
+	subject="$(head -1 $1/subject | sed -E 's/^(.{50}).*/\1/g')"
+	posts="$(ls $1 | grep -v '^subject$' | wc -l | sed -E 's/\ +//g')"
+	printf "%-10s %-16s %-"$TITW"s [ %2s posts ]\n" "$date" "$author" "$subject" "$posts"
+}
+
+
+##function
+list_board_messages(){ 
+	[ -z "$CURBOARD" ] && { 
+		printf "%s\n" "Not at any board!  Hit `l` to list boards, `g` to go to one." 
+			return 
+	}
+	printf -- "$HR"
+	for i in $(ls $BDIR/$CURBOARD | sort -rn | grep -v "^topic") ; do
+		print_thread_title "$BDIR/$CURBOARD/$i"
+	done | sort -rk1 | nl -w3 -v1 -s" "
+	printf -- "$HR"
+}
+
+##function
+type_message(){
+
+	subject="$2"	
+	author="$(echo $(basename $1) | cut -d "-" -f 2)"
+	date="$(echo $(basename $1) | cut -d "-" -f 1)"
+	printf -- "--------------------------\n"
+	printf "SUBJECT:    %s\n" "$subject"
+	printf "AUTHOR:     %s\n" "$author" 
+	printf "POSTED:     %s\n" "$date"
+	printf -- "--------------------------\n"
+	cat $1
+
+}
+
+
+##function
+type_thread(){ 
+	[ -z "$CURBOARD" ] && { 
+		printf "%s\n" "Not at any board!  Hit `l` to list boards, `g` to go to one." 
+			return 
+	}
+	__thread_prompt
+	read -r thread
+	THREAD="$(ls "$BDIR/$CURBOARD" | sort -rn | grep -v "^topic$" | tail -n +"$thread" | head -1)"
+	[ -z "${THREAD}" ] && echo "Invalid thread index!" && return 1
+	subject="$(head -1 "$BDIR/$CURBOARD/$THREAD/subject")"
+	for i in $(ls "$BDIR/$CURBOARD/$THREAD" | sort -n | grep -v "^subject$"); do 
+		type_message "$BDIR/$CURBOARD/$THREAD/$i" "$subject"
+	done | ${DFLTPAGER}
+
+} ##function
+read_cmd(){
+	__prompt
+	while read -r cmd; do 
+		case $cmd in 
+
+			g)
+				select_board
+				[ $? -eq 0 ] && exec $0 ${NEW_BOARD}
+				;;
+			h)
+				show_help
+				;;
+			l)
+				show_boards
+				;;
+			q)
+				exit 0
+				;;
+			m)
+				list_board_messages
+				;;
+			t)
+				type_thread
+				;;
+			*)
+				show_boards
+				;;
+		esac
+		__prompt
+	done
+}
+
+
+show_boards
+read_cmd