#!/bin/sh

print_pgp_key() {
  cat <<-EOF
-----BEGIN PGP PUBLIC KEY BLOCK-----
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=ugjl
-----END PGP PUBLIC KEY BLOCK-----
EOF
}

install_deb() {
  LIST_FILE=/etc/apt/sources.list.d/metasploit-framework.list
  PREF_FILE=/etc/apt/preferences.d/pin-metasploit.pref
  echo -n "Adding metasploit-framework to your repository list.."
  echo "deb [signed-by=/usr/share/keyrings/metasploit-framework.gpg] $DOWNLOAD_URI/apt lucid main" > $LIST_FILE
  print_pgp_key | gpg --dearmor -o /usr/share/keyrings/metasploit-framework.gpg
  if [ ! -f $PREF_FILE ]; then
    mkdir -p /etc/apt/preferences.d/
    cat > $PREF_FILE <<EOF
Package: metasploit*
Pin: origin downloads.metasploit.com
Pin-Priority: 1000
EOF
  fi
  echo -n "Updating package cache.."
  apt-get update > /dev/null
  echo "OK"
  echo "Checking for and installing update.."
  apt-get install -y --allow-downgrades metasploit-framework
}

install_rpm() {
  echo "Checking for and installing update.."
  REPO_FILE=/etc/yum.repos.d/metasploit-framework.repo
  GPG_KEY_FILE=/etc/pki/rpm-gpg/RPM-GPG-KEY-Metasploit
  echo -n "Adding metasploit-framework to your repository list.."

  cat > /etc/yum.repos.d/metasploit-framework.repo <<EOF
[metasploit]
name=Metasploit
baseurl=$DOWNLOAD_URI/rpm
gpgcheck=1
gpgkey=file://$GPG_KEY_FILE
enabled=1
EOF
  print_pgp_key > ${GPG_KEY_FILE}
  yum install -y metasploit-framework
}

install_suse() {
  echo "Checking for and installing update.."
  GPG_KEY_FILE_DIR=/etc/pki/rpm-gpg
  GPG_KEY_FILE=${GPG_KEY_FILE_DIR}/RPM-GPG-KEY-Metasploit
  echo -n "Adding metasploit-framework to your repository list.."
  if [ ! -d $GPG_KEY_FILE_DIR ]; then
    mkdir -p $GPG_KEY_FILE_DIR
  fi
  zypper ar  -f $DOWNLOAD_URI/rpm metasploit
  print_pgp_key > ${GPG_KEY_FILE}
  rpmkeys --import ${GPG_KEY_FILE}
  zypper install -y metasploit-framework
}

install_pkg()
{
  (
    cd ~/Downloads

    echo "Downloading package..."
    curl -O "$DOWNLOAD_URI/osx/metasploitframework-latest.pkg"

    echo "Checking signature..."

    if pkgutil --check-signature metasploitframework-latest.pkg; then
      echo "Installing package..."
      installer -pkg metasploitframework-latest.pkg -target /
    fi

    echo "Cleaning up..."
    rm -fv metasploitframework-latest.pkg
  )
}

DOWNLOAD_URI=https://downloads.metasploit.com/data/releases/metasploit-framework
PKGTYPE=unknown
ID=`id -u`

if [ -f /etc/redhat-release ] ; then
  PKGTYPE=rpm
elif [ -f /etc/system-release ] ; then
  # If /etc/system-release is present, this is likely a distro that uses RPM.
  PKGTYPE=rpm
else
  if uname -sv | grep 'Darwin' > /dev/null; then
    PKGTYPE=pkg
  elif [ -f /usr/bin/zypper ] ; then
    PKGTYPE=sus
  else
    PKGTYPE=deb
  fi
fi

if [ "$ID" -ne 0 ]; then
  if ! hash sudo 2>/dev/null; then
    echo "This script must be executed as the 'root' user or with sudo"
    exit 1
  else
    echo "Switching to root user to update the package"
    sudo -E $0 $@
    exit 0
  fi
fi

case $PKGTYPE in
  deb)
    install_deb
    ;;
  sus)
    install_suse
    ;;
  rpm)
    install_rpm
    ;;
  *)
    install_pkg
esac