summaryrefslogtreecommitdiff
path: root/src/password-store.sh
blob: 26a4bd0ef595f02b401abb0644f71e3e449db288 (plain)
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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
#!/bin/bash

# Copyright (C) 2012 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
# This file is licensed under the GPLv2+. Please see COPYING for more information.

umask 077

PREFIX="${PASSWORD_STORE_DIR:-$HOME/.password-store}"
ID="$PREFIX/.gpg-id"
GIT_DIR="${PASSWORD_STORE_GIT:-$PREFIX}/.git"
GPG_OPTS="--quiet --yes --batch"

export GIT_DIR
export GIT_WORK_TREE="${PASSWORD_STORE_GIT:-$PREFIX}"

version() {
	cat <<_EOF
|-----------------------|
|   Password Store      |
|       v.1.4.2         |
|       by zx2c4        |
|                       |
|    Jason@zx2c4.com    |
|  Jason A. Donenfeld   |
|-----------------------|
_EOF
}
usage() {
	version
	cat <<_EOF

Usage:
    $program init [--reencrypt,-e] gpg-id
        Initialize new password storage and use gpg-id for encryption.
        Optionally reencrypt existing passwords using new gpg-id.
    $program [ls] [subfolder]
        List passwords.
    $program [show] [--clip,-c] pass-name
        Show existing password and optionally put it on the clipboard.
        If put on the clipboard, it will be cleared in 45 seconds.
    $program insert [--echo,-e | --multiline,-m] [--force,-f] pass-name
        Insert new password. Optionally, the console can be enabled echo
        the password back. Or, optionally, it may be multiline. Prompt
        before overwriting existing password unless forced.
    $program edit pass-name
        Insert a new password or edit an existing password using ${EDITOR:-vi}.
    $program generate [--no-symbols,-n] [--clip,-c] [--force,-f] pass-name pass-length
        Generate a new password of pass-length with optionally no symbols.
        Optionally put it on the clipboard and clear board after 45 seconds.
        Prompt before overwriting existing password unless forced.
    $program rm [--recursive,-r] [--force,-f] pass-name
        Remove existing password or directory, optionally forcefully.
    $program git git-command-args...
        If the password store is a git repository, execute a git command
        specified by git-command-args.
    $program help
        Show this text.
    $program version
        Show version information.

More information may be found in the pass(1) man page.
_EOF
}
is_command() {
	case "$1" in
		init|ls|list|show|insert|edit|generate|remove|rm|delete|git|help|--help|version|--version) return 0 ;;
		*) return 1 ;;
	esac
}
git_add_file() {
	[[ -d $GIT_DIR ]] || return
	git add "$1" || return
	[[ -n $(git status --porcelain "$1") ]] || return
	git commit -m "$2"
}
yesno() {
	read -p "$1 [y/N] " response
	[[ $response == "y" || $response == "Y" ]] || exit 1
}
#
# BEGIN Platform definable
#
clip() {
	# This base64 business is a disgusting hack to deal with newline inconsistancies
	# in shell. There must be a better way to deal with this, but because I'm a dolt,
	# we're going with this for now.

	before="$(xclip -o -selection clipboard | base64)"
	echo -n "$1" | xclip -selection clipboard
	(
		sleep 45
		now="$(xclip -o -selection clipboard | base64)"
		if [[ $now != $(echo -n "$1" | base64) ]]; then
			before="$now"
		fi

		# It might be nice to programatically check to see if klipper exists,
		# as well as checking for other common clipboard managers. But for now,
		# this works fine -- if qdbus isn't there or if klipper isn't running,
		# this essentially becomes a no-op.
		#
		# Clipboard managers frequently write their history out in plaintext,
		# so we axe it here:
		qdbus org.kde.klipper /klipper org.kde.klipper.klipper.clearClipboardHistory &>/dev/null

		echo "$before" | base64 -d | xclip -selection clipboard
	) & disown
	echo "Copied $2 to clipboard. Will clear in 45 seconds."
}
tmpdir() {
	if [[ -d /dev/shm && -w /dev/shm && -x /dev/shm ]]; then
		tmp_dir="$(TMPDIR=/dev/shm mktemp -t "$template" -d)"
	else
		yesno "$(echo    "Your system does not have /dev/shm, which means that it may"
		         echo    "be difficult to entirely erase the temporary non-encrypted"
		         echo    "password file after editing. Are you sure you would like to"
		         echo -n "continue?")"
		tmp_dir="$(mktemp -t "$template" -d)"
	fi

}
GETOPT="getopt"

# source /path/to/platform-defined-functions
#
# END Platform definable
#

program="$(basename "$0")"
command="$1"
if is_command "$command"; then
	shift
else
	command="show"
fi

case "$command" in
	init)
		reencrypt=0

		opts="$($GETOPT -o e -l reencrypt -n "$program" -- "$@")"
		err=$?
		eval set -- "$opts"
		while true; do case $1 in
			-e|--reencrypt) reencrypt=1; shift ;;
			--) shift; break ;;
		esac done

		if [[ $# -ne 1 ]]; then
			echo "Usage: $program $command [--reencrypt,-e] gpg-id"
			exit 1
		fi

		gpg_id="$1"
		mkdir -v -p "$PREFIX"
		echo "$gpg_id" > "$ID"
		echo "Password store initialized for $gpg_id."
		git_add_file "$ID" "Set GPG id to $gpg_id."

		if [[ $reencrypt -eq 1 ]]; then
			find "$PREFIX" -iname '*.gpg' | while read passfile; do
				gpg2 -d $GPG_OPTS "$passfile" | gpg2 -e -r "$gpg_id" -o "$passfile.new" $GPG_OPTS &&
				mv -v "$passfile.new" "$passfile"
			done
			git_add_file "$PREFIX" "Reencrypted entire store using new GPG id $gpg_id."
		fi
		exit 0
		;;
	help|--help)
		usage
		exit 0
		;;
	version|--version)
		version
		exit 0
		;;
esac

if [[ -n $PASSWORD_STORE_KEY ]]; then
	ID="$PASSWORD_STORE_KEY"
elif [[ ! -f $ID ]]; then
	echo "You must run:"
	echo "    $program init your-gpg-id"
	echo "before you may use the password store."
	echo
	usage
	exit 1
else
	ID="$(head -n 1 "$ID")"
fi

case "$command" in
	show|ls|list)
		clip=0

		opts="$($GETOPT -o c -l clip -n "$program" -- "$@")"
		err=$?
		eval set -- "$opts"
		while true; do case $1 in
			-c|--clip) clip=1; shift ;;
			--) shift; break ;;
		esac done

		if [[ $err -ne 0 ]]; then
			echo "Usage: $program $command [--clip,-c] [pass-name]"
			exit 1
		fi

		path="$1"
		if [[ -d $PREFIX/$path ]]; then
			if [[ -z $path ]]; then
				echo "Password Store"
			else
				echo "${path%\/}"
			fi
			tree --noreport "$PREFIX/$path" | tail -n +2 | sed 's/\(.*\)\.gpg$/\1/'
		else
			passfile="$PREFIX/$path.gpg"
			if [[ ! -f $passfile ]]; then
				echo "$path is not in the password store."
				exit 1
			fi
			if [[ $clip -eq 0 ]]; then
				exec gpg2 -d $GPG_OPTS "$passfile"
			else
				pass="$(gpg2 -d $GPG_OPTS "$passfile" | head -n 1)"
				[[ -n $pass ]] || exit 1
				clip "$pass" "$path"
			fi
		fi
		;;
	insert)
		multiline=0
		noecho=1
		force=0

		opts="$($GETOPT -o mef -l multiline,echo,force -n "$program" -- "$@")"
		err=$?
		eval set -- "$opts"
		while true; do case $1 in
			-m|--multiline) multiline=1; shift ;;
			-e|--echo) noecho=0; shift ;;
			-f|--force) force=1; shift ;;
			--) shift; break ;;
		esac done

		if [[ $err -ne 0 || ( $multiline -eq 1 && $noecho -eq 0 ) || $# -ne 1 ]]; then
			echo "Usage: $program $command [--echo,-e | --multiline,-m] [--force,-f] pass-name"
			exit 1
		fi
		path="$1"
		passfile="$PREFIX/$path.gpg"

		[[ $force -eq 0 && -e $passfile ]] && yesno "An entry already exists for $path. Overwrite it?"

		mkdir -p -v "$PREFIX/$(dirname "$path")"

		if [[ $multiline -eq 1 ]]; then
			echo "Enter contents of $path and press Ctrl+D when finished:"
			echo
			gpg2 -e -r "$ID" -o "$passfile" $GPG_OPTS
		elif [[ $noecho -eq 1 ]]; then
			while true; do
				read -r -p "Enter password for $path: " -s password
				echo
				read -r -p "Retype password for $path: " -s password_again
				echo
				if [[ $password == "$password_again" ]]; then
					gpg2 -e -r "$ID" -o "$passfile" $GPG_OPTS <<<"$password"
					break
				else
					echo "Error: the entered passwords do not match."
				fi
			done
		else
			read -r -p "Enter password for $path: " -e password
			gpg2 -e -r "$ID" -o "$passfile" $GPG_OPTS <<<"$password"
		fi
		git_add_file "$passfile" "Added given password for $path to store."
		;;
	edit)
		if [[ $# -ne 1 ]]; then
			echo "Usage: $program $command pass-name"
			exit 1
		fi

		path="$1"
		mkdir -p -v "$PREFIX/$(dirname "$path")"
		passfile="$PREFIX/$path.gpg"
		template="$program.XXXXXXXXXXXXX"

		trap 'rm -rf "$tmp_dir" "$tmp_file"' INT TERM EXIT

		tmpdir #Defines $tmp_dir
		tmp_file="$(TMPDIR="$tmp_dir" mktemp -t "$template")"

		action="Added"
		if [[ -f $passfile ]]; then
			gpg2 -d -o "$tmp_file" $GPG_OPTS "$passfile" || exit 1
			action="Edited"
		fi
		${EDITOR:-vi} "$tmp_file"
		while ! gpg2 -e -r "$ID" -o "$passfile" $GPG_OPTS "$tmp_file"; do
			echo "GPG encryption failed. Retrying."
			sleep 1
		done
		git_add_file "$passfile" "$action password for $path using ${EDITOR:-vi}."
		;;
	generate)
		clip=0
		force=0
		symbols="-y"

		opts="$($GETOPT -o ncf -l no-symbols,clip,force -n "$program" -- "$@")"
		err=$?
		eval set -- "$opts"
		while true; do case $1 in
			-n|--no-symbols) symbols=""; shift ;;
			-c|--clip) clip=1; shift ;;
			-f|--force) force=1; shift ;;
			--) shift; break ;;
		esac done

		if [[ $err -ne 0 || $# -ne 2 ]]; then
			echo "Usage: $program $command [--no-symbols,-n] [--clip,-c] [--force,-f] pass-name pass-length"
			exit 1
		fi
		path="$1"
		length="$2"
		if [[ ! $length =~ ^[0-9]+$ ]]; then
			echo "pass-length \"$length\" must be a number."
			exit 1
		fi
		mkdir -p -v "$PREFIX/$(dirname "$path")"
		passfile="$PREFIX/$path.gpg"

		[[ $force -eq 0 && -e $passfile ]] && yesno "An entry already exists for $path. Overwrite it?"

		pass="$(pwgen -s $symbols $length 1)"
		[[ -n $pass ]] || exit 1
		gpg2 -e -r "$ID" -o "$passfile" $GPG_OPTS <<<"$pass"
		git_add_file "$passfile" "Added generated password for $path to store."
		
		if [[ $clip -eq 0 ]]; then
			echo "The generated password to $path is:"
			echo "$pass"
		else
			clip "$pass" "$path"
		fi
		;;
	delete|rm|remove)
		recursive=""
		force=0

		opts="$($GETOPT -o rf -l recursive,force -n "$program" -- "$@")"
		err=$?
		eval set -- "$opts"
		while true; do case $1 in
			-r|--recursive) recursive="-r"; shift ;;
			-f|--force) force=1; shift ;;
			--) shift; break ;;
		esac done
		if [[ $# -ne 1 ]]; then
			echo "Usage: $program $command [--recursive,-r] [--force,-f] pass-name"
			exit 1
		fi
		path="$1"

		passfile="$PREFIX/${path%/}"
		if [[ ! -d $passfile ]]; then
			passfile="$PREFIX/$path.gpg"
			if [[ ! -f $passfile ]]; then
				echo "$path is not in the password store."
				exit 1
			fi
		fi

		[[ $force -eq 1 ]] || yesno "Are you sure you would like to delete $path?"

		rm $recursive -f -v "$passfile"
		if [[ -d $GIT_DIR && ! -e $passfile ]]; then
			git rm -qr "$passfile"
			git commit -m "Removed $path from store."
		fi
		;;
	git)
		if [[ $1 == "init" ]]; then
			git "$@" || exit 1
			git_add_file "$PREFIX" "Added current contents of password store."
		elif [[ -d $GIT_DIR ]]; then
			exec git "$@"
		else
			echo "Error: the password store is not a git repository."
			exit 1
		fi
		;;
	*)
		usage
		exit 1
		;;
esac
exit 0