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
|
#!/bin/sh
# Copyright (c) 2021, la-ninpre
#
# 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.
# small script to create page with qr-coded recovery tokens for otp
# uses: qrencode, imagemagick(convert, montage)
#
# file with codes should be in following format:
# - recovery codes should be on separate lines
# - every line beginning with # is ignored
QRENCODE_ERR_CORR_LEVEL=H
CODES_KEEP_PNG=0
CODES_MAKE_PDF=0
usage() {
echo "create qr-coded recovery tokens for easy printing"
echo
echo "USAGE:"
echo " $0 [OPTIONS] <text-file>"
echo
echo "OPTIONS:"
echo " -k keep png files with qrcodes"
echo " -l {L,M,Q,H}"
echo " set qrencode error correction level"
echo " -p produce pdf instead of image"
echo " -h print this help message"
echo
}
while getopts kl:ph arg
do
case "$arg" in
k) CODES_KEEP_PNG=1
;;
l) case $OPTARG in
[lL]) QRENCODE_ERR_CORR_LEVEL=L ;;
[mM]) QRENCODE_ERR_CORR_LEVEL=M ;;
[qQ]) QRENCODE_ERR_CORR_LEVEL=Q ;;
[hH]) QRENCODE_ERR_CORR_LEVEL=H ;;
*) echo "error correction level should be one of L, M, Q or H"
exit 1 ;;
esac
;;
p) CODES_MAKE_PDF=1
;;
h|*) usage && exit 1
;;
esac
done
shift $((OPTIND - 1))
[ $# -ne 1 ] && usage && exit 1
CODES_FILE="$1"
CODES_BASENAME="${CODES_FILE%%.*}"
CODES_EXT="${CODES_FILE##*.}"
CODES_DIR="$PWD/${CODES_BASENAME}_${CODES_EXT}_dir"
CODES_DATE="$(date +'%Y-%m-%d %H:%M')"
CODES_OUTPUT="${CODES_BASENAME}_qrcodes"
CODES_OUT_IMG="${CODES_OUTPUT}.png"
CODES_OUT_PDF="${CODES_OUTPUT}.pdf"
rm -f "$CODES_OUT_IMG" "$CODES_OUT_PDF"
[ -d "$CODES_DIR" ] && rm -rf "$CODES_DIR"
mkdir "$CODES_DIR"
sed -e '/^#.*/ d' -e '/^\s*$/ d' < "$CODES_FILE" \
| xargs -I{} \
qrencode -l "$QRENCODE_ERR_CORR_LEVEL" -t png -d 150 \
-o "$CODES_DIR/{}-code.png" {}
montage -title "\n$CODES_FILE\n$CODES_DATE" \
"$CODES_DIR/*-code.png" -page a4 -geometry 128x128\> "$CODES_OUT_IMG"
[ "$CODES_MAKE_PDF" -ne 0 ] && {
convert \( -size 1240x1754 xc: \) "$CODES_OUT_IMG" \
-composite "$CODES_OUT_PDF"
[ "$CODES_KEEP_PNG" -eq 0 ] && rm -f "$CODES_OUT_IMG"
}
[ "$CODES_KEEP_PNG" -eq 0 ] && rm -rf "$CODES_DIR" || exit 0
|
