forked from ungleich-public/cdist
130 lines
3.7 KiB
Bash
Executable File
130 lines
3.7 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2012-2014 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2014 Nico Schottelius (nico-cdist at schottelius.org)
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# 2021 Darko Poljak (darko.poljak at gmail.com)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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state="$(cat "$__object/parameter/state" 2>/dev/null)"
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file="$(cat "$__object/explorer/file")"
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keys_file="$__object/explorer/keys"
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temp_file="${file}.tmp"
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work_file="${temp_file}.work"
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_type_and_key() {
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echo "$1" | tr ' ' '\n' | awk '/^(ssh|ecdsa)-[^ ]+/ { printf $1" "; getline; printf $1 }'
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}
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_gen_key_entry() {
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_the_key="$1"
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# generate the key entry as it should be
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if [ -f "$__object/parameter/option" ]; then
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# comma seperated list of options
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options="$(tr '\n' ',' < "$__object/parameter/option")"
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printf '%s ' "${options%*,}"
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fi
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if [ -f "$__object/parameter/comment" ]; then
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# extract the keytype and base64 encoded key ignoring any options and comment
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printf '%s ' "$(echo "${_the_key}" | tr ' ' '\n' | awk '/^(ssh|ecdsa)-[^ ]+/ { printf $1" "; getline; printf $1 }')"
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# override the comment with the one explicitly given
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printf '%s' "$(cat "$__object/parameter/comment")"
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else
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printf '%s' "${_the_key}"
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fi
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printf '\n'
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}
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cat << DONE
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cp -f "${file}" "${temp_file}"
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DONE
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while read -r key; do
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# validate key
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validated_key="$(echo "${key}" | tr ' ' '\n' | awk '/^(ssh|ecdsa)-[^ ]+/ { printf $1" "; getline; printf $1 }')"
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if [ -z "${validated_key}" ]
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then
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echo "Key is invalid: \"${key}\"" >&2
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exit 1
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fi
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type_and_key="$(_type_and_key "${key}")"
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# remove conflicting entries
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cat << DONE
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grep -v "${type_and_key}\\([ \\n].*\\)*\$" "${temp_file}" > "${work_file}" || true
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DONE
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entry="$(_gen_key_entry "${key}")"
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case "${state}" in
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present)
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# escape single quotes
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_line_sanitised=$(echo "${entry}" | sed -e "s/'/'\"'\"'/g")
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cat << DONE
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printf "%s\\n" "${_line_sanitised}" >> "${work_file}"
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mv -f "${work_file}" "${temp_file}"
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DONE
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echo "added to ${file} (${entry})" >> "$__messages_out"
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;;
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absent)
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cat << DONE
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grep -v "${entry}" "${work_file}" > "${temp_file}" || true
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rm -f "${work_file}"
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DONE
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echo "removed from ${file} (${entry})" >> "$__messages_out"
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;;
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esac
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done < "$__object/parameter/key"
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set --
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cat << DONE
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set --
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DONE
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if [ -f "$__object/parameter/remove-unknown" ] && [ -s "${keys_file}" ]
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then
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while read -r key
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do
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type_and_key="$( _type_and_key "${key}" )"
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if grep -Fq "${type_and_key}" "$__object/parameter/key"
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then
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continue
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fi
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# build grep -e patterns
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set -- "\$@" "-e" "${key}"
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cat << DONE
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set -- "\$@" "-e" "${key}"
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DONE
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done < "${keys_file}"
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# if no pattern then nothing to remove
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if [ $# -gt 0 ]
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then
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cat << DONE
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grep -v -F -x "\$@" "${temp_file}" > "${work_file}" || true
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mv -f "${work_file}" "${temp_file}"
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DONE
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fi
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fi
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cat << DONE
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mv -f "${temp_file}" "${file}"
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DONE
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