| 1 | #!/bin/sh |
| 2 | |
| 3 | # abuild-keygen - generate signing keys |
| 4 | # Copyright (c) 2009 Natanael Copa <[email protected]> |
| 5 | # |
| 6 | # Distributed under GPL-2 |
| 7 | # |
| 8 | |
| 9 | abuild_ver=@VERSION@ |
| 10 | datadir=@datadir@ |
| 11 | |
| 12 | if ! [ -f "$datadir/functions.sh" ]; then |
| 13 | echo "$datadir/functions.sh: not found" >&2 |
| 14 | exit 1 |
| 15 | fi |
| 16 | . "$datadir/functions.sh" |
| 17 | |
| 18 | |
| 19 | # ask for privkey unless non-interactive mode |
| 20 | # returns value in global $privkey |
| 21 | get_privkey_file() { |
| 22 | local emailaddr default_name |
| 23 | emailaddr=${PACKAGER##*<} |
| 24 | emailaddr=${emailaddr%%>*} |
| 25 | |
| 26 | # if PACKAGER does not contain a valid email address, then ask git |
| 27 | if [ -z "$emailaddr" ] || [ "${emailaddr##*@}" = "$emailaddr" ]; then |
| 28 | emailaddr=$(git config --get user.email 2>/dev/null) |
| 29 | fi |
| 30 | |
| 31 | default_name="${emailaddr:-$USER}-$(printf "%x" $(date +%s))" |
| 32 | |
| 33 | privkey="$ABUILD_USERDIR/$default_name.rsa" |
| 34 | [ -n "$non_interactive" ] && return 0 |
| 35 | msg "Generating public/private rsa key pair for abuild" |
| 36 | echo -n "Enter file in which to save the key [$privkey]: " |
| 37 | |
| 38 | read line |
| 39 | if [ -n "$line" ]; then |
| 40 | privkey="$line" |
| 41 | fi |
| 42 | } |
| 43 | |
| 44 | do_keygen() { |
| 45 | mkdir -p "$ABUILD_USERDIR" |
| 46 | |
| 47 | get_privkey_file |
| 48 | pubkey="$privkey.pub" |
| 49 | |
| 50 | # generate the private key in a subshell with stricter umask |
| 51 | ( |
| 52 | umask 0007 |
| 53 | openssl genrsa -out "$privkey" 2048 |
| 54 | ) |
| 55 | openssl rsa -in "$privkey" -pubout -out "$pubkey" |
| 56 | |
| 57 | |
| 58 | if [ -n "$install_pubkey" ]; then |
| 59 | msg "Installing $pubkey to /etc/apk/keys..." |
| 60 | sudo mkdir -p /etc/apk/keys |
| 61 | sudo cp -i "$pubkey" /etc/apk/keys/ |
| 62 | else |
| 63 | |
| 64 | msg "" |
| 65 | msg "You'll need to install $pubkey into " |
| 66 | msg "/etc/apk/keys to be able to install packages and repositories signed with" |
| 67 | msg "$privkey" |
| 68 | fi |
| 69 | |
| 70 | if [ -n "$append_config" ]; then |
| 71 | if [ -f "$ABUILD_USERCONF" ]; then |
| 72 | # comment out the existing values |
| 73 | sed -i -e 's/^PACKAGER_PRIVKEY=/\#&/' "$ABUILD_USERCONF" |
| 74 | fi |
| 75 | echo "PACKAGER_PRIVKEY=\"$privkey\"" >> "$ABUILD_USERCONF" |
| 76 | else |
| 77 | msg "" |
| 78 | msg "You might want add following line to $ABUILD_USERCONF:" |
| 79 | msg "" |
| 80 | msg "PACKAGER_PRIVKEY=\"$privkey\"" |
| 81 | msg "" |
| 82 | fi |
| 83 | |
| 84 | msg "" |
| 85 | msg "Please remember to make a safe backup of your private key:" |
| 86 | msg "$privkey" |
| 87 | msg "" |
| 88 | } |
| 89 | |
| 90 | usage() { |
| 91 | cat >&2 <<__EOF__ |
| 92 | $prog $abuild_ver - generate signing keys |
| 93 | Usage: $prog [-a|--append] [-i|--install] [-n] |
| 94 | Options: |
| 95 | -a, --append Set PACKAGER_PRIVKEY=<generated key> in $ABUILD_USERCONF |
| 96 | -i, --install Install public key into /etc/apk/keys using sudo |
| 97 | -n Non-interactive. Use defaults |
| 98 | -q, --quiet |
| 99 | -h, --help Show this help |
| 100 | |
| 101 | __EOF__ |
| 102 | } |
| 103 | |
| 104 | append_config= |
| 105 | install_pubkey= |
| 106 | non_interactive= |
| 107 | quiet= |
| 108 | |
| 109 | args=`getopt -o ainqh --long append,install,quiet,help -n "$prog" -- "$@"` |
| 110 | if [ $? -ne 0 ]; then |
| 111 | usage |
| 112 | exit 2 |
| 113 | fi |
| 114 | eval set -- "$args" |
| 115 | while true; do |
| 116 | case $1 in |
| 117 | -a|--append) append_config=1;; |
| 118 | -i|--install) install_pubkey=1;; |
| 119 | -n) non_interactive=1;; |
| 120 | -q|--quiet) quiet=1;; # suppresses msg |
| 121 | -h|--help) usage; exit;; |
| 122 | --) shift; break;; |
| 123 | *) exit 1;; # getopt error |
| 124 | esac |
| 125 | shift |
| 126 | done |
| 127 | if [ $# -ne 0 ]; then |
| 128 | usage |
| 129 | exit 2 |
| 130 | fi |
| 131 | |
| 132 | do_keygen |