127 lines
2.9 KiB
Bash
127 lines
2.9 KiB
Bash
#!/bin/sh
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# generate signing keys
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# Copyright (c) 2009 Natanael Copa <ncopa@alpinelinux.org>
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#
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# Distributed under GPL-2
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#
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# Depends on: busybox utilities, fakeroot,
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#
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abuild_ver=@VERSION@
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sysconfdir=@sysconfdir@
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abuild_conf=${ABUILD_CONF:-"$sysconfdir/abuild.conf"}
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abuild_home=${ABUILD_USERDIR:-"$HOME/.abuild"}
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abuild_userconf=${ABUILD_USERCONF:-"$abuild_home/abuild.conf"}
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# echo message unless quite mode
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msg() {
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[ -n "$quiet" ] && return 0
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echo "$@"
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}
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# ask for privkey unless non-interactive mode
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# returns value in global $privkey
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get_privkey_file() {
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privkey="$abuild_home/$default_name.rsa"
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[ "$non_interactive" = "yes" ] && return 0
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echo "Generating public/private rsa key pair for abuild"
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echo -n "Enter file in which to save the key ($abuild_home/$default_name.rsa): "
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read line
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if [ -n "$line" ]; then
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privkey="$line"
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fi
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}
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# print usage and exit
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usage() {
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echo "abuild-keygen $abuild_ver"
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echo "usage: abuild-keygen [-ih]"
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echo "options:"
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echo " -a Set PACKAGER_PRIVKEY=<generated key> in $abuild_userconf"
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echo " -i Install public key into /etc/apk/keys using sudo"
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echo " -h Show this help"
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echo " -n Non-interactive. Use defaults"
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echo " -q Quiet mode"
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echo ""
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exit 1
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}
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# read config
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[ -f "$abuild_conf" ] && . "$abuild_conf"
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# read user config if exists
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[ -f "$abuild_userconf" ] && . "$abuild_userconf"
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emailaddr=${PACKAGER##*<}
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emailaddr=${emailaddr%%>*}
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# if PACKAGER does not contain a valid email address, then ask git
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if [ -z "$emailaddr" ] || [ "${emailaddr##*@}" = "$emailaddr" ]; then
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emailaddr=$(git config --get user.email 2>/dev/null)
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fi
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if [ -n "$emailaddr" ]; then
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default_name="$emailaddr-$(printf "%x" $(date +%s))"
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else
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default_name="$USER-$(printf "%x" $(date +%s))"
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fi
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while getopts "ahinq" opt; do
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case $opt in
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a) append_config=yes;;
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h) usage;;
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i) install_pubkey=yes;;
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n) non_interactive=yes;;
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q) quiet=-quiet;;
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esac
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done
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shift $(( $OPTIND - 1))
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mkdir -p "$abuild_home"
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get_privkey_file
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pubkey="$privkey.pub"
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# generate the private key in a subshell with stricter umask
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(
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umask 0007
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openssl genrsa -out "$privkey" 2048
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)
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openssl rsa -in "$privkey" -pubout -out "$pubkey"
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if [ -n "$install_pubkey" ]; then
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msg "Installing $pubkey to /etc/apk/keys..."
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sudo mkdir -p /etc/apk/keys
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sudo cp -i "$pubkey" /etc/apk/keys/
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else
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msg ""
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msg "You'll need to install $pubkey into "
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msg "/etc/apk/keys to be able to install packages and repositories signed with"
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msg "$privkey"
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fi
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if [ -n "$append_config" ]; then
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if [ -f "$abuild_userconf" ]; then
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# comment out the existing values
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sed -i -e 's/^\(PACKAGER_PRIVKEY=.*\)/\#\1/' "$abuild_userconf"
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fi
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echo "PACKAGER_PRIVKEY=\"$privkey\"" >> "$abuild_userconf"
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else
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msg ""
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msg "You might want add following line to $abuild_userconf:"
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msg ""
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msg "PACKAGER_PRIVKEY=\"$privkey\""
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msg ""
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fi
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msg ""
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msg "Please remember to make a safe backup of your private key:"
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msg "$privkey"
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msg ""
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