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