QubesOS-Scripts/whonix/whonix-gw.sh

#!/bin/sh

# Copyright (C) 2022-2024 Thien Tran
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

set -eu

unpriv(){
  sudo -u nobody "$@"
}

# Setting umask to 077
# Does not actually work for some reason - need to check
umask 077
sudo sed -i 's/^UMASK.*/UMASK 077/g' /etc/login.defs
sudo sed -i 's/^HOME_MODE/#HOME_MODE/g' /etc/login.defs
sudo sed -i 's/umask 022/umask 077/g' /etc/bashrc

# Make home directory private
sudo chmod 700 /home/*

# Avoid phased updates
unpriv curl -s --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/apt/apt.conf.d/99sane-upgrades | sudo tee /etc/apt/apt.conf.d/99sane-upgrades > /dev/null
sudo chmod 644 /etc/apt/apt.conf.d/99sane-upgrades

# Install packages
sudo apt install --no-install-recommends qt5ct qt5-style-plugins arc-theme -y

# Restrict /proc and access
sudo systemctl enable --now proc-hidepid.service

# Reduce kernel information leaks
# Will break a lot of applications. The apps I use on Whonix work fine with it so I am enabling it.
sudo systemctl enable --now hide-hardware-info.service

# Enforce connection padding
echo 'ConnectionPadding 1' | sudo tee /usr/local/etc/torrc.d/50_user.conf

# Theming
unpriv curl -s --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/TommyTran732/QubesOS-Scripts/main/etc/environment | sudo tee /etc/environment > /dev/null

sudo mkdir -p /etc/gtk-3.0
unpriv curl -s --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/TommyTran732/QubesOS-Scripts/main/etc/gtk-3.0/settings.ini | sudo tee /etc/gtk-3.0/settings.ini > /dev/null

sudo mkdir -p /etc/gtk-4.0
unpriv curl -s --proxy http://127.0.0.1:8082 https://raw.githubusercontent.com/TommyTran732/QubesOS-Scripts/main/etc/gtk-4.0/settings.ini | sudo tee /etc/gtk-4.0/settings.ini > /dev/null