diff options
| -rwxr-xr-x | boot/tor.sh | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/boot/tor.sh b/boot/tor.sh new file mode 100755 index 00000000..d257e955 --- /dev/null +++ b/boot/tor.sh @@ -0,0 +1,80 @@ +#!/bin/sh +set -efu +msg() { printf "$@\n" >&2 ;} +info() { msg "** $@" ;} +error() { msg "!! $@" ;} +exists(){ type "$1" >/dev/null 2>/dev/null; } +get_hostname(){ + # finds the current hostname + # if ENV HOSTN is set echo $HOSTN + + if [ -n "${HOSTN:-}" ] ; then printf "${HOSTN:-}" + elif exists hostname ; then printf "${HOSTNAME:-$(hostname)}" + elif exists uci ; then printf "$(uci get system.@system[0].hostname)" + elif [ -e /etc/hostname ] ;then printf "$(cat /etc/hostname)" + else printf "unknown" + fi +} + +anytelnet(){ + # find Telnet or similar + # requires exist + # if env TELNET is set, will be trying to run this + if [ -e "${TELNET:-does_not_exist}" ]; then + info"Will be using $TELNET as Telnet Client" + elif exists telnet >/dev/null;then + TELNET="`command -v telnet`" + elif exists nc >/dev/null;then + TELNET="`command -v nc`" + elif exists netcat >/dev/null;then + TELNET="`command -v netcat`" + elif exists busybox >/dev/null;then + TELNET="`command -v busybox` telnet" + else + error "Cannot find telnet binary, please install either telnet-client or busybox or netcat or provided TELNET environment.\nbailing out!" + return 1 + fi + $TELNET $@ +} + +send_irc(){ + to_dots(){ while read line; do printf .; done;} + ## reads from stdin, writes to IRC + ## + ## requires func: exists() anytelnet() + if [ -z "${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; ) | anytelnet $IRCSERVER $IRCPORT 2>/dev/null | to_dots +} + +# can be set via env: +# torrc - path to torrc (default: /etc/tor/torrc ) +# hidden_service_dir - path to hidden service (default: /var/lib/tor/hidden_service/ ) + +torrc=${torrc:-/etc/tor/torrc} +hidden_service_dir=${hidden_service_dir:-/var/lib/tor/hidden_service/} + +test -w "$torrc" || ( error "$torrc is not writable!"; exit 1 ) +if ! grep -q '^HiddenService' "$torrc" ;then + info "adding hidden service to $torrc" + cat >> "$torrc" << EOF +HiddenServiceDir ${hidden_service_dir} +HiddenServicePort 22 127.0.0.1:22 +EOF +else + info "HiddenServiceDir or Port already in $torrc, skipping!" +fi + +cat $hidden_service_dir/hostname | send_irc |