forked from ungleich-public/cdist
115 lines
3.4 KiB
Bash
Executable File
115 lines
3.4 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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#
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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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owner="$(cat "$__object/parameter/owner" 2>/dev/null || echo "$__object_id")"
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state="$(cat "$__object/parameter/state" 2>/dev/null)"
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file="$(cat "$__object/explorer/file")"
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if [ ! -f "$__object/parameter/key" -a ! -f "$__object/parameter/keyfile" ]; then
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echo "At least one of --key or --keyfile must be specified" >&2
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exit 1
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fi
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if [ ! -f "$__object/parameter/nofile" ] && [ -z "$file" ]
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then
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echo "Cannot determine path of authorized_keys file" >&2
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exit 1
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fi
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if [ ! -f "$__object/parameter/noparent" ] || [ ! -f "$__object/parameter/nofile" ]; then
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group="$(cut -d':' -f 1 "$__object/explorer/group")"
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if [ -z "$group" ]; then
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echo "Failed to get owners group from explorer." >&2
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exit 1
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fi
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if [ ! -f "$__object/parameter/noparent" ]; then
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__ssh_dot_ssh "$owner"
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export require="__ssh_dot_ssh/$owner"
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fi
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if [ ! -f "$__object/parameter/nofile" ]; then
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# Ensure that authorized_keys file exists and has the right permissions.
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__file "$file" \
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--owner "$owner" \
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--group "$group" \
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--mode 0600 \
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--state exists
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export require="__file/$file"
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fi
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fi
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_cksum() {
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echo "$1" | cksum | cut -d' ' -f 1
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}
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_type_and_key() {
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echo "$1" | tr ' ' '\n' | awk '/^(ssh|ecdsa)-[^ ]+/ { printf $1" "; getline; printf $1 }'
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}
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(
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if [ -f "$__object/parameter/key" ]; then
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cat "$__object/parameter/key"
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fi
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if [ -f "$__object/parameter/keyfile" ]; then
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while read filename; do
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cat "$filename"
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done < "$__object/parameter/keyfile"
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fi
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) | while read -r key; do
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type_and_key="$( _type_and_key "$key" )"
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object_id="$(_cksum "$file")-$(_cksum "$type_and_key")"
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set -- "$object_id"
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set -- "$@" --file "$file"
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set -- "$@" --key "$key"
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set -- "$@" --state "$state"
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if [ -f "$__object/parameter/option" ]; then
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# shellcheck disable=SC2046
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set -- "$@" $(printf -- '--option %s ' $(cat "$__object/parameter/option"))
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fi
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if [ -f "$__object/parameter/comment" ]; then
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set -- "$@" --comment "$(cat "$__object/parameter/comment")"
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fi
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# Ensure __ssh_authorized_key does not read stdin
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__ssh_authorized_key "$@" < /dev/null
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done
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if [ -f "$__object/parameter/remove-unknown" ] &&
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[ -s "$__object/explorer/keys" ]
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then
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while read -r key
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do
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type_and_key="$( _type_and_key "$key" )"
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if grep -Fq "$type_and_key" "$__object/parameter/key"
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then
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continue
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fi
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__ssh_authorized_key "remove-$( _cksum "$file$key" )" \
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--file "$file" \
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--key "$key" \
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--state absent \
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< /dev/null
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done \
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< "$__object/explorer/keys"
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fi
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