write_channel.py rewritten to announce_pubkey

announce_pubkey is a shell-only implementation of the now obsolete write_channel script to announce a hosts public key
the only dependency of this script is telnet, haven't seen a system without it for a while now

3 files changed, 36 insertions, 28 deletions

diff --git a/retiolum/bin/announce_pubkey b/retiolum/bin/announce_pubkey
new file mode 100644
index 00000000..ce5aed19
--- /dev/null
+++ b/retiolum/bin/announce_pubkey
@@ -0,0 +1,35 @@
+#!/bin/sh
+set -euf
+HOST="${1:-}"
+
+usage (){
+cat <<EOF
+usage: $0 HOSTNAME
+
+also, you are made of stupid
+EOF
+exit 23
+}
+
+[ "x$HOST" = "x" ] && usage
+
+CHANNEL="#krebsco"
+IRCHOST="irc.freenode.net"
+PORT=6667
+RETIOLUM="/etc/tinc/retiolum"
+PUBFILE="$RETIOLUM/hosts/$HOST"
+
+if [ ! -e $PUBFILE ] ;then
+    echo "cannot find $PUBFILE - host $HOST wrong?" ; 
+    echo
+    usage
+fi
+
+NICK="${HOST}_$((RANDOM%666))"
+
+(   echo "NICK $NICK";
+    echo "USER $NICK $IRCHOST bla : $NICK";
+    echo "JOIN $CHANNEL";
+    sleep 23;
+    sed "s/^\(.*\)/PRIVMSG $CHANNEL : \1/" $PUBFILE;
+    sleep 5; ) | telnet $IRCHOST $PORT
diff --git a/retiolum/scripts/tinc_setup/install.sh b/retiolum/scripts/tinc_setup/install.sh
index a6b50b8a..2e36b83a 100755
--- a/retiolum/scripts/tinc_setup/install.sh
+++ b/retiolum/scripts/tinc_setup/install.sh
@@ -73,7 +73,7 @@ if [ ! -e rsa_key.priv ]
 then
   echo "creating new keys"
   tincd -n $netname -K 
-  python ${CURR}/write_channel.py $myname || \
+  $MYBIN/announce_pubkey $myname || \
   echo "cannot write public key to IRC, you are on your own. Good Luck"
 else
   echo "key files already exist, skipping"
diff --git a/retiolum/scripts/tinc_setup/write_channel.py b/retiolum/scripts/tinc_setup/write_channel.py
deleted file mode 100644
index 8299fa8d..00000000
--- a/retiolum/scripts/tinc_setup/write_channel.py
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/python
-import random, sys, time, socket
-try:
-  myname=sys.argv[1]
-except:
-  print("you are made of stupid")
-  exit (23)
-
-CHANNEL = '#krebsco'
-HOST='irc.freenode.net'
-FILE="/etc/tinc/retiolum/hosts/"+myname
-PORT=6667
-NICK= myname+"_"+str(random.randint(23,666))
-
-print("Connecting...")
-sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
-sock.connect((HOST,PORT))
-print(NICK)
-sock.send("NICK %s\r\n" % NICK)
-sock.send("USER %s %s bla : %s\r\n" %(NICK,HOST,NICK))
-sock.send("JOIN %s\r\n" % CHANNEL)
-time.sleep(23)
-f = open(FILE,'r') 
-a = [ sock.send("PRIVMSG %s : %s" % ( CHANNEL,line)) for line in f]
-time.sleep(5) #because irc is so lazy
-print("closing socket")
-sock.close()