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# Remote accountd server process
adduser --disabled-password --shell /bin/sh \
--home /home/lacme-account \
--gecos "lacme account user" \
--quiet lacme-account
chown lacme-account: /etc/lacme/account.key
DEBIAN_FRONTEND="noninteractive" apt install -y --no-install-recommends \
openssh-client openssh-server
ssh-keygen -N "" -f ~root/.ssh/id_rsa
install -olacme-account -glacme-account -dm0700 ~lacme-account/.ssh
install -olacme-account -glacme-account -m0644 ~root/.ssh/id_rsa.pub ~lacme-account/.ssh/authorized_keys
{ echo -n "[127.0.0.1]:2222 "; cat /etc/ssh/ssh_host_rsa_key.pub; } >~root/.ssh/known_hosts
cat >/etc/ssh/sshd_config <<-EOF
Port 2222
ListenAddress 127.0.0.1
ChallengeResponseAuthentication no
PasswordAuthentication no
UsePAM yes
EOF
install -oroot -groot -dm0755 /run/sshd
/usr/sbin/sshd
sed -ri 's|^#?command\s*=.*/lacme-accountd$|command = ssh -Tp2222 -llacme-account 127.0.0.1 lacme-accountd|' /etc/lacme/lacme.conf
sed -ri 's|^#?config\s*=.*|config = /etc/lacme/lacme-accountd.conf|' /etc/lacme/lacme.conf
lacme newOrder --debug 2>"$STDERR" || fail # intentionally use --debug, ssh should tunnel stdin + stdout + stderr
test /etc/lacme/simpletest.rsa.crt -nt /etc/lacme/simpletest.rsa.key
# and now with an authorized_keys(5) restriction
sed -ri "s|^[^#]|restrict,from=\"127.0.0.1\",command=\"/usr/bin/lacme-accountd --quiet --stdio\" &|" ~lacme-account/.ssh/authorized_keys
rm -vf /etc/lacme/simpletest.rsa.crt
! lacme newOrder 2>"$STDERR" || fail # --config= (and --debug) should be ignored
grepstderr -Fxq "Error: 'privkey' is not specified"
grepstderr -Fxq "[simpletest-rsa] Error: Couldn't issue X.509 certificate!"
install -olacme-account -glacme-account -Ddm0700 -- \
~lacme-account/.config/lacme ~lacme-account/.local/share/lacme
mv -t ~lacme-account/.config/lacme /etc/lacme/account.key
cat >~lacme-account/.config/lacme/lacme-accountd.conf <<-EOF
privkey = file:%E/lacme/account.key
logfile = %h/.local/share/lacme/accountd.log
EOF
lacme newOrder
test /etc/lacme/simpletest.rsa.crt -nt /etc/lacme/simpletest.rsa.key
# ensure signature requests are logged
grep -F ">>> Incoming signature request for " ~lacme-account/.local/share/lacme/accountd.log
# vim: set filetype=sh :
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