#irc #bot using #shell #bash #script #remote #exec #code #execution

irc.exec.sh

#!/usr/bin/env bash

#set -x
set -o pipefail

PREFIX=usr
NAME="${PREFIX}$(hostname | cut -d. -f1)"
CHAN="${1:-#test}"
INFO="$(date) $(uname -a)"
PING=10.0

tee /dev/stderr | {
	sleep 2
	echo "NICK ${NAME}"
	echo "USER $(whoami) * * : $(hostname -i)"

	sleep 5
	echo "JOIN ${CHAN}"

	while sleep ${PING}; do echo PING :${RANDOM}; done &
	echo "PRIVMSG ${CHAN} :${INFO}"

	cat - \
		| grep --line-buffered \
			-e "PRIVMSG ${CHAN}" \
			-e "PRIVMSG ${NAME}" \
		| grep --line-buffered -v \
			-e "^:${PREFIX}"  \
			-e "^:${NAME}"    \
		| stdbuf -i0 -oL -eL cut -d':' -f3- \
		| grep --line-buffered -oE '\$.+$'  \
		| stdbuf -i0 -oL -eL cut -d'$' -f2- \
		| stdbuf -i0 -oL -eL tr -d '\r'     \
		| bash -x /dev/stdin 2>&1           \
		| sed -u "s/^/PRIVMSG ${CHAN} :/g"  \
		| while read line; do
			echo "${line}";
			sleep 1.${RANDOM}; # flood protection
		done
} | tee /dev/stderr

exit