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-rwxr-xr-xboot/tor.sh80
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