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#@include core
. /krebs/lib/core
# TODO refactor this
which_get_loader(){
if ! exists curl ; then
if ! exists wget ; then
warn "Please install curl or wget"
return 1
else
echo "wget -q -O-"
fi
else
echo "curl -L -s"
fi
return 0
}
which_head_loader(){
if ! exists curl ; then
if ! exists wget ; then
warn "Please install curl or wget"
return 1
else
echo "wget -O- --spider -S -q"
fi
else
echo "curl -L -I -s"
fi
return 0
}
http_get(){
eval "$(which_get_loader)" "${1?please provide url}"
}
http_head(){
eval "$(which_head_loader)" "${1?please provide url}" 2>&1
}
internet(){
secret=$(http_get http://krebsco.de/secret 2>/dev/null)
if [ "$secret" = "1337" ]; then
return 0
else
echo "cannot load secret or secret incorrect" >&2
return 1
fi
}
which_telnet(){
# find Telnet or similar and executes it at the end
# requires exist
# if env TELNET is set, will be trying to run this
# Tries the following things:
# telnet
# nc
# netcat
# busybox telnet
if [ -e "${TELNET:-does_not_exist}" ]; then
info "Will be using $TELNET as Telnet Client"
echo $TELNET
elif exists telnet ;then
command -v telnet
elif exists nc ;then
command -v nc
elif exists netcat;then
command -v netcat
elif exists busybox;then
echo `command -v busybox` telnet
else
die 'Cannot find telnet binary, please install either telnet-client or busybox or netcat or provided TELNET environment.'
fi
}
run_telnet(){
host="$1"
port="$2"
$(which_telnet) "$host" "$port"
}
send_irc(){
## reads from stdin, writes to IRC
##
## requires func: exists() anytelnet()
if [ -z "${HOSTN:-}" ]; then
HOSTN="$(get_hostname)"
info "no HOSTN given, using $HOSTN instead"
fi
IRCCHANNEL=${IRCCHANNEL:-"#krebs_incoming"}
IRCSERVER=${IRCSERVER:-"irc.freenode.net"}
IRCPORT=${IRCPORT:-6667}
NICK="${HOSTN}_$(head /dev/urandom | tr -dc "0123456789" | head -c3)"
info "starting irc connect as $NICK"
( echo "NICK $NICK";
echo "USER $NICK $IRCSERVER bla : $NICK";
echo "JOIN $IRCCHANNEL";
sleep 23;
while read line; do echo "PRIVMSG $IRCCHANNEL :$line";sleep 1;done
sleep 5; ) | run_telnet $IRCSERVER $IRCPORT 2>/dev/null
}
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