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#!/bin/bash -x

export VERSION="0.1"

echo "This program will now reconfigure your Debian system into a Torouter"

# For every file we touch, move it to the temp_dir and then tar it up in the end
export temp_dir="`mktemp -d`"
export config_dir="/usr/share/torouter-prep/example-configs/"

# Add a user to administrate the Torouter later
export ADMINUSER="torouter"
export ADMINGROUP="torouter"
export TORADMINGROUP="debian-tor"

# Install the Tor repo key
# gpg --keyserver keys.gnupg.net --recv 886DDD89
# gpg --export A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89 | apt-key add -
# This is the main Tor repo apt pubkey
apt-key add $config_dir/A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89.apt-key

# This is the temp torrouter archive pubkey; this should be updated when we
# freeze this repo and know what we want to do
apt-key add $config_dir/047E6A24.asc

# Set us to have a default host name and hosts file
cp $config_dir/etc/hostname /etc/hostname
cp $config_dir/etc/hosts /etc/hosts

# We need to prep apt to understand that we want packages from other repos
cp $config_dir/sources.list /etc/apt/sources.list

# We're creating this file to ensure we get updates
cp $config_dir/etc/apt/apt-preferences.d/backports /etc/apt/preferences.d/backports
cp $config_dir/etc/apt/apt.conf /etc/apt/apt.conf

apt-get -y update

apt-get -y install apt-utils

# Install a sane editor
apt-get -y install vim

# install a sane pager
apt-get -y install less

# Install screen
apt-get -y install screen

# Install a few networking tools
apt-get -y install lsof wireless-tools iputils-ping \
  lsof net-tools tcptraceroute traceroute mtr-tiny

# Install the weird wireless control for the DreamPlug
apt-get install -y -t sid uaputl
apt-get install -y -t sid uapevent

# Install some other packages here:
apt-get -y install denyhosts ufw

# Allow us to set the clock:
apt-get -y -t squeeze-backports install openntpd

# Install Tor and deps from Debian experimental to get 0.2.2.x for ORPort auto:
apt-get -y -t experimental install tor tor-geoipdb
# To try the arm builds of 0.2.3.x do this:
#apt-get -y -t torrouter install tor tor-geoipdb
# To build a 0.2.3.x Tor:
# apt-get source tor=0.2.3.1-alpha-1~~squeeze+1
# Debuild here...

# To build with natpmp support
apt-get -y -t experimental install libnatpmp-dev
apt-get -y -t experimental install libnatpmp1

# To build with miniupnpc support
apt-get -y -t squeeze-backports install libminiupnpc-dev
apt-get -y -t squeeze-backports install libminiupnpc5

# XXX
# We want to apt-get source tor and build it for the 0.2.3.x branch
#

# Install a Tor controller:
apt-get -y install tor-arm

# Install the ttdnsd program:
apt-get -y install ttdnsd

# Install a normal dns cache for eth1
apt-get -y install dnsmasq

# install the best dhcp client we're gonna get in debian land
apt-get -y install isc-dhcp-client

# install our own real dns cache
apt-get -y install unbound

##
## Configuration stage of the script
##

# Configure arm
zcat $config_dir/armrc.sample.gz > ~$ADMINUSER/.armrc

# Reconfigure /etc/inittab here
cp $config_dir/etc/inittab /etc/inittab

# Reconfigure fstab
cp $config_dir/etc/fstab /etc/fstab

# Configure the network
# eth0 is our "internet" interface with a dhcp client
cp $config_dir/etc/network/interfaces /etc/network/interfaces

# Configure dnsmasq
cp $config_dir/etc/dnsmasq.conf /etc/dnsmasq.conf

# Configure ntp
cp $config_dir/etc/ntp.conf /etc/ntp.conf
cp $config_dir/etc/default/openntpd /etc/default/openntpd

# Configure ssh
cp $config_dir/etc/ssh/sshd_config /etc/ssh/sshd_config

# XXX We should configure ufw here
# XXX We should configure denyhosts

cp $config_dir/etc/tor/torrc /etc/tor/torrc
cp $config_dir/etc/default/ttdnsd /etc/default/ttdnsd

# Configure sshd
cp $config_dir/etc/ssh/sshd_config /etc/ssh/sshd_config

# Clean up our cache
apt-get -f -y remove --purge polipo minissdpd

# Remove a bunch of stuff:
apt-get -y remove exim4-base exim4-config exim4-daemon-light dbus

#apt-get -y autoremove
apt-get -y clean

# Fixup apt if something goes wrong
apt-get install -f

## Disable ipv6 support for now
cp $config_dir/etc/modprobe.d/blacklist.conf /etc/modprobe.d/blacklist.conf
# We don't need this if the ipv6 module is not loaded
#echo net.ipv6.conf.all.disable_ipv6=1 > /etc/sysctl.d/disableipv6.conf
##
## Restart the network here
##

ifup -a

apt-get -y install unbound

##
## Restart services here
##

/etc/init.d/ssh restart
/etc/init.d/tor restart
/etc/init.d/ttdnsd restart

addgroup $ADMINGROUP
useradd -g $ADMINGROUP -G $TORADMINGROUP -s /bin/bash $ADMINUSER

##
## Add arm startup trick with cron for shared screen run as $ADMINUSER
##
crontab -u $ADMINUSER $config_dir/tor-arm-crontab

##
## Touch a stamp to show that we're now a Torouter
##

echo "torouter $VERSION" > /etc/torouter
echo "You should reboot now to ensure that everything works as expected"