#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.installer
# SPDX-Security-Contact: security@coresecret.eu

guard_sourcing

#######################################
# Final checks.
# Globals:
#   TARGET
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
auditing_packages() {
  ### Declare Arrays, HashMaps, and Variables.
  declare -r  var_logfile="/root/.ciss/cdi/log/4630_auditing_packages.log"

  chroot_logger "${TARGET}${var_logfile}"

  chroot_script "${TARGET}" "
    if ! dpkg --audit 2>&1 | tee -a ${var_logfile}; then
      echo \"[dpkg --audit] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[dpkg --audit]  ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    if ! apt-get check 2>&1 | tee -a ${var_logfile}; then
      echo \"[apt-get check] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[apt-get check] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    ### Only log anomalies from dpkg -V (no output == OK)
    if ! dpkg -V 2>&1 | tee -a ${var_logfile}; then
      echo \"[dpkg -V] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[dpkg -V] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    ### Simulations (no changes)
    if ! apt-get -s autoremove --purge 2>&1 | tee -a ${var_logfile}; then
      echo \"[apt-get -s autoremove --purge] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[apt-get -s autoremove --purge] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    ### Residual configs & holds
    if ! apt-mark showhold 2>&1 | tee -a ${var_logfile}; then
      echo \"[apt-mark showhold] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[apt-mark showhold] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    ### Apt pinning
    if ! grep -R . /etc/apt/preferences.d/ 2>&1 | tee -a ${var_logfile}; then
      echo \"[grep -R . /etc/apt/preferences.d/] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[grep -R . /etc/apt/preferences.d/] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    ### Diversions, statoverrides, alternatives
    if ! dpkg-divert --list 2>&1 | tee -a ${var_logfile}; then
      echo \"[dpkg-divert --list] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[dpkg-divert --list] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    if ! dpkg-statoverride --list 2>&1 | tee -a ${var_logfile}; then
      echo \"[dpkg-statoverride --list] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[dpkg-statoverride --list] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}

    if ! update-alternatives --get-selections 2>&1 | tee -a ${var_logfile}; then
      echo \"[update-alternatives --get-selections] failed with ExitCode: \$? \" >> ${var_logfile}
    else
      echo \"[update-alternatives --get-selections] ExitCode: \$? \" >> ${var_logfile}
    fi
    echo +++ >> ${var_logfile}
  "

  guard_dir && return 0
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh