#!/bin/bash
set -e

script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

function create_user {
  user="$1"
  groups="$2"
  id "$user" > /dev/null 2>&1 && return 0
  test -n "$groups" && groups="--groups $groups"
  useradd -s /bin/bash -m "$user" $groups
}

function create_group {
  group="$1"
  getent group "$group" > /dev/null 2>&1 && return 0
  groupadd "$group"
}

function authorized_keys {
  user="$1"
  shift
  tmpfile=$(mktemp)
  for file in "$@"; do
    cat "$script_dir/ssh-keys/$file" >> "$tmpfile"
  done
  sshdir="/home/$user/.ssh"
  authkeysfile="$sshdir/authorized_keys"
  if diff "$tmpfile" "$authkeysfile" > /dev/null 2>&1; then
    rm "$tmpfile"
    return 0
  fi
  echo "Update authorized_keys for user $user"
  if ! test -d "$sshdir"; then
    mkdir "$sshdir"
    chmod 700 "$sshdir"
    chown $user:$user "$sshdir"
  fi
  mv "$tmpfile" "$authkeysfile"
  chown $user:$user "$authkeysfile"
  chmod 600 "$authkeysfile"
}

function sudoers_file {
  sfile="$1"
  cp "$script_dir/sudoers.d/$sfile" "/etc/sudoers.d/$sfile"
  chown root:root "/etc/sudoers.d/$sfile"
  chmod 0440 "/etc/sudoers.d/$sfile"
}

function udev_rule {
  udevrule="$1"
  rulepath="/etc/udev/rules.d/$udevrule"
  if ! diff "$script_dir$rulepath" "$rulepath" > /dev/null 2>&1; then
    cp "$script_dir$rulepath" "$rulepath"
    udevadm control --reload-rules
  fi
}

function install_packages {
  for pkg in "$@"
  do
    dpkg-query -s "$pkg" 2> /dev/null | grep -q '^Status: .* installed' && continue
    apt-get install -y "$pkg"
  done
}

install_packages build-essential rsync unzip
install_packages sudo vim tmux gnupg

create_user setup
authorized_keys setup boklm-yk1.pub
mkdir -p /signing
chmod 0755 /signing
chown setup /signing

create_user yubihsm
create_group yubihsm
udev_rule 70-yubikey.rules

create_user signing
create_group signing
create_user signing-gpg
create_user signing-mar
create_user signing-win yubihsm


sudoers_file sign-gpg
sudoers_file sign-mar
sudoers_file sign-exe

authorized_keys boklm boklm-tb-release.pub boklm-yk1.pub
create_user richard signing
authorized_keys richard richard.pub

# Install rbm deps
install_packages libyaml-libyaml-perl libtemplate-perl libdatetime-perl \
                 libio-handle-util-perl libio-all-perl \
                 libio-captureoutput-perl libjson-perl libpath-tiny-perl \
                 libstring-shellquote-perl libsort-versions-perl \
                 libdigest-sha-perl libdata-uuid-perl libdata-dump-perl \
                 libfile-copy-recursive-perl libfile-slurp-perl

# Install deps for building osslsigncode
install_packages autoconf libtool pkg-config libssl-dev libcurl4-openssl-dev
sudo -u signing-win /signing/tor-browser-build/tools/signing/machines-setup/setup-osslsigncode

# Packages needed for windows signing
install_packages opensc libengine-pkcs11-openssl

# Install deps for building yubihsm-shell
install_packages cmake libusb-1.0-0-dev libedit-dev gengetopt libpcsclite-dev help2man chrpath dh-exec

# Build and install yubihsm-pkcs11 package
create_user build-pkgs
if ! dpkg-query -s yubihsm-pkcs11 2> /dev/null | grep -q '^Status: .* installed'; then
  yubishm_version=2.4.0
  sudo -u build-pkgs /signing/tor-browser-build/tools/signing/machines-setup/build-yubihsm-shell-pkg
  pushd /home/build-pkgs/packages/yubihsm-shell-pkgs
  apt-get install -y ./yubihsm-pkcs11_${yubishm_version}_amd64.deb \
    ./libyubihsm1_${yubishm_version}_amd64.deb \
    ./libyubihsm-http1_${yubishm_version}_amd64.deb \
    ./libyubihsm-usb1_${yubishm_version}_amd64.deb
  popd
fi

# install mar-tools
if ! test -d /home/signing-mar/mar-tools; then
  tmpdir=$(mktemp -d)
  unzip -d "$tmpdir" /signing/mar-tools-linux64.zip
  chown -R signing-mar:signing-mar "$tmpdir/mar-tools"
  chmod go+rX "$tmpdir/mar-tools"/*
  mv "$tmpdir/mar-tools" /home/signing-mar/mar-tools
fi
