create_user.sh

#!/usr/bin/env bash
#####################################################
# Source https://mailinabox.email/ https://github.com/mail-in-a-box/mailinabox
# Updated by cryptopool.builders for crypto use...
#####################################################

source /etc/functions.sh
cd ~/multipool/install
clear

# Welcome
message_box "Ultimate Crypto-Server Setup Installer" \
"Hello and thanks for using the Ultimate Crypto-Server Setup Installer!
\n\nInstallation for the most part is fully automated. In most cases any user responses that are needed are asked prior to the installation.
\n\nNOTE: You should only install this on a brand new Ubuntu 16.04 or Ubuntu 18.04 installation."
# Root warning message box
message_box "Ultimate Crypto-Server Setup Installer" \
"Naughty, naughty! You are trying to install this as the root user!
\n\nRunning any application as root is a serious security risk.
\n\nTherefore we make you create a user account :)"

# Ask if SSH key or password user
dialog --title "Create New User With SSH Key" \
--yesno "Do you want to create your new user with SSH key login?
Selecting no will create user with password login only." 7 60
response=$?
case $response in
   0) UsingSSH=yes;;
   1) UsingSSH=no;;
   255) echo "[ESC] key pressed.";;
esac

# If Using SSH Key Login
if [[ ("$UsingSSH" == "yes") ]]; then
  clear
    if [ -z "${yiimpadmin:-}" ]; then
      DEFAULT_yiimpadmin=yiimpadmin
      input_box "New Account Name" \
      "Please enter your desired user name.
      \n\nUser Name:" \
      ${DEFAULT_yiimpadmin} \
      yiimpadmin

      if [ -z "${yiimpadmin}" ]; then
        # user hit ESC/cancel
        exit
      fi
    fi

    if [ -z "${ssh_key:-}" ]; then
      DEFAULT_ssh_key=PublicKey
      input_box "Please open PuTTY Key Generator on your local machine and generate a new public key." \
      "To paste your Public key use ctrl shift right click.
      \n\nPublic Key:" \
      ${DEFAULT_ssh_key} \
      ssh_key

      if [ -z "${ssh_key}" ]; then
        # user hit ESC/cancel
        exit
      fi
    fi

  # create random user password
  RootPassword=$(openssl rand -base64 8 | tr -d "=+/")
  clear

  # Add user
  echo -e "Adding new user and setting SSH key...$COL_RESET"
  sudo adduser ${yiimpadmin} --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --disabled-password
  echo -e "${RootPassword}\n${RootPassword}" | passwd ${yiimpadmin}
  sudo usermod -aG sudo ${yiimpadmin}
  # Create SSH Key structure
  mkdir -p /home/${yiimpadmin}/.ssh
  touch /home/${yiimpadmin}/.ssh/authorized_keys
  chown -R ${yiimpadmin}:${yiimpadmin} /home/${yiimpadmin}/.ssh
  chmod 700 /home/${yiimpadmin}/.ssh
  chmod 644 /home/${yiimpadmin}/.ssh/authorized_keys
  authkeys=/home/${yiimpadmin}/.ssh/authorized_keys
  echo "$ssh_key" > "$authkeys"

  # enabling multipool command
  echo '# yiimp
  # It needs passwordless sudo functionality.
  '""''"${yiimpadmin}"''""' ALL=(ALL) NOPASSWD:ALL
  ' | sudo -E tee /etc/sudoers.d/${yiimpadmin} >/dev/null 2>&1

  echo '
  cd ~/multipool/install
  bash start.sh
  ' | sudo -E tee /usr/bin/multipool >/dev/null 2>&1
  sudo chmod +x /usr/bin/multipool

  # Check required files and set global variables
  cd $HOME/multipool/install
  source pre_setup.sh

  # Create the STORAGE_USER and STORAGE_ROOT directory if they don't already exist.
  if ! id -u $STORAGE_USER >/dev/null 2>&1; then
    sudo useradd -m $STORAGE_USER
  fi
  if [ ! -d $STORAGE_ROOT ]; then
    sudo mkdir -p $STORAGE_ROOT
  fi

  # Save the global options in /etc/multipool.conf so that standalone
  # tools know where to look for data.
  echo 'STORAGE_USER='"${STORAGE_USER}"'
  STORAGE_ROOT='"${STORAGE_ROOT}"'
  PUBLIC_IP='"${PUBLIC_IP}"'
  PUBLIC_IPV6='"${PUBLIC_IPV6}"'
  DISTRO='"${DISTRO}"'
  PRIVATE_IP='"${PRIVATE_IP}"'' | sudo -E tee /etc/multipool.conf >/dev/null 2>&1

  sudo cp -r ~/multipool /home/${yiimpadmin}/
  cd ~
  sudo setfacl -m u:${yiimpadmin}:rwx /home/${yiimpadmin}/multipool
  sudo rm -r $HOME/multipool
  clear
  echo "New User is installed make sure you saved your private key..."
  echo -e "$RED Please reboot system and log in as the new user and type$COL_RESET $GREEN multipool$COL_RESET $RED to continue setup...$COL_RESET"
  exit 0
fi

# New User Password Login Creation
if [ -z "${yiimpadmin:-}" ]; then
  DEFAULT_yiimpadmin=yiimpadmin
  input_box "New Account Name" \
  "Please enter your desired user name.
  \n\nUser Name:" \
  ${DEFAULT_yiimpadmin} \
  yiimpadmin

  if [ -z "${yiimpadmin}" ]; then
    # user hit ESC/cancel
    exit
  fi
fi

if [ -z "${RootPassword:-}" ]; then
  DEFAULT_RootPassword=$(openssl rand -base64 8 | tr -d "=+/")
  input_box "User Password" \
  "Enter your new user password or use this randomly system generated one.
  \n\nUnfortunatley dialog doesnt let you copy. So you have to write it down.
  \n\nUser password:" \
  ${DEFAULT_RootPassword} \
  RootPassword

  if [ -z "${RootPassword}" ]; then
    # user hit ESC/cancel
    exit
  fi
fi

clear

dialog --title "Verify Your Responses" \
--yesno "Please verify your answers before you continue:

New User Name : ${yiimpadmin}
New User Pass : ${RootPassword}" 8 60

# Get exit status
# 0 means user hit [yes] button.
# 1 means user hit [no] button.
# 255 means user hit [Esc] key.
response=$?
case $response in

0)
clear
echo -e " Adding new user and password...$COL_RESET"

sudo adduser ${yiimpadmin} --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --disabled-password
echo -e ""${RootPassword}"\n"${RootPassword}"" | passwd ${yiimpadmin}
sudo usermod -aG sudo ${yiimpadmin}

# enabling multipool command
echo '# yiimp
# It needs passwordless sudo functionality.
'""''"${yiimpadmin}"''""' ALL=(ALL) NOPASSWD:ALL
' | sudo -E tee /etc/sudoers.d/${yiimpadmin} >/dev/null 2>&1

echo '
cd ~/multipool/install
bash start.sh
' | sudo -E tee /usr/bin/multipool >/dev/null 2>&1
sudo chmod +x /usr/bin/multipool

# Check required files and set global variables
cd $HOME/multipool/install
source pre_setup.sh

# Create the STORAGE_USER and STORAGE_ROOT directory if they don't already exist.
if ! id -u $STORAGE_USER >/dev/null 2>&1; then
sudo useradd -m $STORAGE_USER
fi
if [ ! -d $STORAGE_ROOT ]; then
sudo mkdir -p $STORAGE_ROOT
fi

# Save the global options in /etc/multipool.conf so that standalone
# tools know where to look for data.
echo 'STORAGE_USER='"${STORAGE_USER}"'
STORAGE_ROOT='"${STORAGE_ROOT}"'
PUBLIC_IP='"${PUBLIC_IP}"'
PUBLIC_IPV6='"${PUBLIC_IPV6}"'
DISTRO='"${DISTRO}"'
PRIVATE_IP='"${PRIVATE_IP}"'' | sudo -E tee /etc/multipool.conf >/dev/null 2>&1

sudo cp -r ~/multipool /home/${yiimpadmin}/
cd ~
sudo setfacl -m u:${yiimpadmin}:rwx /home/${yiimpadmin}/multipool
sudo rm -r $HOME/multipool
clear
echo "New User is installed..."
echo -e "$RED Please reboot system and log in as the new user and type$COL_RESET $GREEN multipool$COL_RESET $RED to continue setup...$COL_RESET"
exit 0;;

1)

clear
bash $(basename $0) && exit;;

255)

;;
esac