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|
#!/bin/sh
set -u
ACME=/usr/lib/acme/client/acme.sh
LOG_TAG=acme-acmesh
NOTIFY=/usr/lib/acme/notify
# shellcheck source=net/acme/files/functions.sh
. /usr/lib/acme/functions.sh
# Needed by acme.sh
export CURL_CA_BUNDLE=/etc/ssl/certs/ca-certificates.crt
export NO_TIMESTAMP=1
link_certs() {
local main_domain
local domain_dir
domain_dir="$1"
main_domain="$2"
(
umask 077
cat "$domain_dir/fullchain.cer" "$domain_dir/$main_domain.key" >"$domain_dir/combined.cer"
)
if [ ! -e "$CERT_DIR/$main_domain.crt" ]; then
ln -s "$domain_dir/$main_domain.cer" "$CERT_DIR/$main_domain.crt"
fi
if [ ! -e "$CERT_DIR/$main_domain.key" ]; then
ln -s "$domain_dir/$main_domain.key" "$CERT_DIR/$main_domain.key"
fi
if [ ! -e "$CERT_DIR/$main_domain.fullchain.crt" ]; then
ln -s "$domain_dir/fullchain.cer" "$CERT_DIR/$main_domain.fullchain.crt"
fi
if [ ! -e "$CERT_DIR/$main_domain.combined.crt" ]; then
ln -s "$domain_dir/combined.cer" "$CERT_DIR/$main_domain.combined.crt"
fi
if [ ! -e "$CERT_DIR/$main_domain.chain.crt" ]; then
ln -s "$domain_dir/ca.cer" "$CERT_DIR/$main_domain.chain.crt"
fi
}
handle_signal() {
local notify_op=$1
local label_op=$2
wait_notify() {
# wait for acme.sh child job to die, *then* notify about status
wait
log warn "$label_op aborted: $main_domain"
$NOTIFY "${notify_op}-failed"
exit 1
}
trap wait_notify TERM
# try to kill the cgroup
local cgroup=$(cut -d : -f 3 /proc/$$/cgroup)
if [[ "$cgroup" == '/services/acme/*' ]]; then
# send SIGTERM to all processes in this process's cgroup. this
# relies on procd's having set up the cgroup for the instance.
read -r -d '' pids < /sys/fs/cgroup${cgroup}/cgroup.procs
kill -TERM $pids 2> /dev/null
fi
# if we're here, either the cgroup wasn't as exected to be set up by
# procd or killing the cgroup PIDs failed. try to kill the process
# group, assuming this process is the group leader. this is actually
# unlikely since procd doesn't set service PGIDs (so they aren't group
# leaders).
kill -TERM -$$ 2> /dev/null
# if we're here, cgroup-based killing was avoided or didn't work and
# PGID-based killing didn't work. fall back to the raciest option.
trap "" TERM
term_descendants() {
local pids=$@
local pid=
# `pgrep -P` returns nothing if given a non-existent PID
# (even if the PID has live children), so children must
# be killed first
for pid in $pids; do
term_descendants $(pgrep -P "$pid")
kill -TERM "$pid" 2> /dev/null
done
}
term_descendants $(jobs -p)
wait_notify
}
case $1 in
get)
set --
[ "$debug" = 1 ] && set -- "$@" --debug
case $key_type in
ec*)
keylength=${key_type/ec/ec-}
domain_dir="$state_dir/${main_domain}_ecc"
set -- "$@" --ecc
;;
rsa*)
keylength=${key_type#rsa}
domain_dir="$state_dir/$main_domain"
;;
esac
log info "Running ACME for $main_domain with validation_method $validation_method"
staging_moved=0
if [ -e "$domain_dir" ]; then
if [ "$staging" = 0 ] && grep -q "acme-staging" "$domain_dir/$main_domain.conf"; then
mv "$domain_dir" "$domain_dir.staging"
log info "Certificates are previously issued from a staging server, but staging option is disabled, moved to $domain_dir.staging."
staging_moved=1
else
set -- "$@" --renew --home "$state_dir" -d "$main_domain"
log info "$ACME $*"
trap "handle_signal renew Renewal" INT TERM
$ACME "$@" &
wait $!
status=$?
trap - INT TERM
case $status in
0)
link_certs "$domain_dir" "$main_domain"
$NOTIFY renewed
exit
;;
2)
# renew skipped, ignore.
exit
;;
*)
$NOTIFY renew-failed
exit 1
;;
esac
fi
fi
for d in $domains; do
set -- "$@" -d "$d"
done
set -- "$@" --keylength "$keylength" --accountemail "$account_email"
if [ "$acme_server" ]; then
set -- "$@" --server "$acme_server"
# default to letsencrypt because the upstream default may change
elif [ "$staging" = 1 ]; then
set -- "$@" --server letsencrypt_test
else
set -- "$@" --server letsencrypt
fi
if [ "$days" ]; then
set -- "$@" --days "$days"
fi
if [ "$cert_profile" ]; then
set -- "$@" --cert-profile "$cert_profile"
fi
case "$validation_method" in
"dns")
set -- "$@" --dns "$dns"
if [ "$dalias" ]; then
set -- "$@" --domain-alias "$dalias"
if [ "$calias" ]; then
log err "Both domain and challenge aliases are defined. Ignoring the challenge alias."
fi
elif [ "$calias" ]; then
set -- "$@" --challenge-alias "$calias"
fi
if [ "$dns_wait" ]; then
set -- "$@" --dnssleep "$dns_wait"
fi
;;
"standalone")
set -- "$@" --standalone --listen-v6 --httpport "$listen_port"
;;
"alpn")
set -- "$@" --alpn --listen-v6 --tlsport "$listen_port"
;;
"webroot")
mkdir -p "$CHALLENGE_DIR"
set -- "$@" --webroot "$CHALLENGE_DIR"
;;
*)
log err "Unsupported validation_method $validation_method"
;;
esac
set -- "$@" --issue --home "$state_dir"
log info "$ACME $*"
trap "handle_signal issue Issuance" INT TERM
"$ACME" "$@" \
--pre-hook "$NOTIFY prepare" \
--renew-hook "$NOTIFY renewed" &
wait $!
status=$?
trap - INT TERM
case $status in
0)
link_certs "$domain_dir" "$main_domain"
$NOTIFY issued
;;
*)
if [ "$staging_moved" = 1 ]; then
mv "$domain_dir.staging" "$domain_dir"
log err "Staging certificate restored"
elif [ -d "$domain_dir" ]; then
failed_dir="$domain_dir.failed-$(date +%s)"
mv "$domain_dir" "$failed_dir"
log err "State moved to $failed_dir"
fi
$NOTIFY issue-failed
;;
esac
;;
esac
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