aboutsummaryrefslogtreecommitdiff
path: root/dpw-gpg
blob: b0669dc18406f0d0e1fcb96da9ec64e2ab5f6488 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
#!/bin/sh
# Copyright 2021 Mitchell Riedstra
# 
# Permission to use, copy, modify, and/or distribute this software for any purpose
# with or without fee is hereby granted, provided that the above copyright notice
# and this permission notice appear in all copies.
# 
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
# THIS SOFTWARE.
# 
# Example storage plugin that's compatible with the original password
# store
set -e

PASSWORD_STORE_DIR="${PASSWORD_STORE_DIR:-$HOME/.password-store}"
PASSWORD_STORE_KEY="${PASSWORD_STORE_KEY:-}"

USE_GIT=0
[ -e "${PASSWORD_STORE_DIR}/.git" ] && USE_GIT=1

umask "${PASSWORD_STORE_UMASK:-077}"

__gpg_opts="-q -z0"

# Helper functions

_git_commit() {
	[ $USE_GIT -eq 0 ] && return
	cd "${PASSWORD_STORE_DIR}"
	git add --all
	git commit -am "DPW Auto-commit: $1"
}

_set_gpg_id() {
if [ -n "$PASSWORD_STORE_KEY" ] ; then
	PASSWORD_STORE_KEY="$(echo "$PASSWORD_STORE_KEY" | tr ' ' '\n' \
		| sed -e's/^/ -r/' | tr '\n' ' ')"
	return
fi
_pth="$1"; shift

_pth="${PASSWORD_STORE_DIR}/$_pth"


id_file="$(dirname "${_pth}")/.gpg-id"
while true ; do

	# Break if id_file is above our password store directory
	case $id_file in
	${PASSWORD_STORE_DIR}*) ;;
	*) break ;;
	esac

	if [ -e "$id_file" ] ; then
		keys=""
		while read -r key ; do
			keys="$keys -r $key"
		done < "$id_file"

		export PASSWORD_STORE_KEY="$keys"
		return
	fi

	# Pop this up a directory level for the next time 'round
	id_file="$(dirname "$id_file")"
	id_file="$(dirname "$id_file")/.gpg-id"
done

echo "No '.gpg-id' files found, is '$PASSWORD_STORE_DIR' initialized?"
exit 1
}


# Interface

show() {
pth="$1"; shift
#shellcheck disable=SC2086
exec gpg $__gpg_opts -d < "${PASSWORD_STORE_DIR}/${pth}.gpg"
}


insert() {
pth="$1"; shift
_set_gpg_id "$pth"
mkdir -p "$PASSWORD_STORE_DIR/$(dirname "$pth")"
#shellcheck disable=SC2086
gpg $__gpg_opts -e ${PASSWORD_STORE_KEY} \
	> "${PASSWORD_STORE_DIR}/${pth}.gpg"
_git_commit "Insert: $pth"
}

list() {
find "$PASSWORD_STORE_DIR/$1" -type f -iname "*.gpg" \
	| while read -r line ; do
		line="${line##$PASSWORD_STORE_DIR}"
		line="${line#/}"
		line="${line#/}"
		line="${line%.gpg}"
		echo "$line"
	done
}

remove() {
cd "$PASSWORD_STORE_DIR"
recursive=
force=
while [ $# -gt 0 ] ; do case $1 in
	-r) recursive="-r" ; shift ;;
	-f) force="-f" ; shift ;;
	-rf|-fr) recursive="-r" ; force="-f" ; shift ;;
	*) break ;;
esac ; done

files=
for fn in "$@" ; do
	if [ -e "${fn}.gpg" ] ; then
	files="${fn}.gpg
"
	else
	files="$fn
"
	fi
done

#shellcheck disable=SC2086
rm $recursive $force $files
_git_commit "Remove: $*"
}

_init_help() {
cat <<EOF
usage: $0 [--no-git] <GPG IDs>...
EOF
exit 1
}

_init() {
USE_GIT=1
if [ -d "${PASSWORD_STORE_DIR}" ] ; then
	echo "Cannot init new password store, one exists"
	exit 1
fi
while [ $# -gt 0 ] ; do case $1 in
	--no-git) USE_GIT=0 ; shift ;;
	-h|--help) _init_help ;;
	*) break ;;
esac ; done

if [ $# -eq 0 ] ; then
	echo "No GPG id supplied, bailing"
	exit 1
fi

mkdir -p "${PASSWORD_STORE_DIR}"
cd "${PASSWORD_STORE_DIR}"

if [ $USE_GIT -eq 1 ] ; then
	git init
	cat >> .git/config <<EOF
[diff "gpg"]
	binary = true
	textconv = gpg --no-tty --decrypt
EOF

	echo "*.gpg diff=gpg" >> .gitattributes
fi

for id in "$@" ; do
	echo "$id" >> .gpg-id
done

_git_commit

echo "Password store initialized"
}

act="$1"; shift
case $act in
	show) show "$@" ;;
	list) list "$@" ;;
	insert) insert "$@" ;;
	rm) remove "$@" ;;
	init) _init "$@" ;;
	*) echo "Bad command $act"; exit 1; ;;
esac