103 lines
3.1 KiB
Bash
103 lines
3.1 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.installer
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# SPDX-Security-Contact: security@coresecret.eu
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guard_sourcing
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declare -g VAR_LAST_CMD=""
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declare -g __preexec_invoke=""
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# shellcheck disable=SC2155
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declare -grx LOG_DBG="${DIR_LOG}/ciss_debian_installer_$$_debug.log"
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### Generates empty LOG_DBG
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touch "${LOG_DBG}" && chmod 0600 "${LOG_DBG}"
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### Write Debug Log Header https://www.gnu.org/software/bash/manual/html_node/Bash-Variables
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debug_trace_header "$#" "$*"
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### Define patterns and mask replacements
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declare -Ag MASK_PATTERNS=(
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["API_KEY"]="********"
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["api_key"]="********"
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["password"]="********"
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["priv_key"]="********"
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["secret"]="********"
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["token"]="********"
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)
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#######################################
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# Wrapper to write to DEBUG Logfile.
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# Globals:
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# BASH_LINENO
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# BASH_SOURCE
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# FUNCNAME
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# LOG_DBG
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# Arguments:
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# None
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#######################################
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debug_trap_logger() {
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declare var_rc="$1"; shift
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declare var_msg="$*"
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# shellcheck disable=SC2155
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declare var_ts="$(date -u '+%Y-%m-%dT%H:%M:%S.%4N%z')"
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declare -i i=0
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for (( i=0; i<${#FUNCNAME[@]}; i++ )); do
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if [[ ${FUNCNAME[i]} != "debug_trap_logger" && \
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${FUNCNAME[i]} != "debug_trap" ]]; then
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break
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fi
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done
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declare var_func="${FUNCNAME[i]:-MAIN}"
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declare var_line="${BASH_LINENO[i-1]:-?}"
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declare var_script="${BASH_SOURCE[i]:-${BASH_SOURCE[0]}}"
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declare var_script_rel="${var_script#"${PWD}"/}"
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printf '%s [%s:%s] %s() |%s| RC:%s \n' "${var_ts}" "${var_script_rel}" "${var_line}" "${var_func}" "${var_msg}" "${var_rc}">> "${LOG_DBG}"
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}
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#######################################
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# Trap function to be called on 'DEBUG'.
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# Globals:
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# BASH_COMMAND
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# MASK_PATTERNS
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# VAR_LAST_CMD
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# __preexec_invoke
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# Arguments:
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# None
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# Returns:
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# 0: In all cases
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#######################################
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debug_trap() {
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declare rc="$?" var_cmd="${BASH_COMMAND}"
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### Skip any xtrace output or explicit set -x/+x calls
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if [[ "${var_cmd}" == +* ]] || [[ "${var_cmd}" == "set -x" ]] || [[ "${var_cmd}" == "set +x" ]]; then
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return 0
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fi
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### Mask sensitive substrings
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declare key
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for key in "${!MASK_PATTERNS[@]}"; do
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#if [[ "${var_cmd}" =~ ${key} ]]; then
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# var_cmd="${var_cmd//${key}/${MASK_PATTERNS[${key}]}}"
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#fi
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case "${var_cmd}" in
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*"${key}"*) var_cmd="${var_cmd//${key}/${MASK_PATTERNS[${key}]}}" ;;
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esac
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done
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if [[ -n "${__preexec_invoke:-}" ]]; then
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debug_trap_logger "${rc}" "${VAR_LAST_CMD}"
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declare -g __preexec_invoke=""
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fi
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declare -g __preexec_invoke=1
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declare -g VAR_LAST_CMD="${var_cmd}"
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return 0
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}
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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