254 lines
6.8 KiB
Bash
254 lines
6.8 KiB
Bash
#!/bin/sh
|
|
# Wrapper for acme.sh to work on openwrt.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it under
|
|
# the terms of the GNU General Public License as published by the Free Software
|
|
# Foundation; either version 3 of the License, or (at your option) any later
|
|
# version.
|
|
#
|
|
# Author: Toke Høiland-Jørgensen <toke@toke.dk>
|
|
|
|
CHECK_CRON=$1
|
|
ACME=/usr/lib/acme/acme.sh
|
|
export CURL_CA_BUNDLE=/etc/ssl/certs/ca-certificates.crt
|
|
export NO_TIMESTAMP=1
|
|
|
|
UHTTPD_LISTEN_HTTP=
|
|
STATE_DIR='/etc/acme'
|
|
ACCOUNT_EMAIL=
|
|
DEBUG=0
|
|
|
|
. /lib/functions.sh
|
|
|
|
check_cron()
|
|
{
|
|
[ -f "/etc/crontabs/root" ] && grep -q '/etc/init.d/acme' /etc/crontabs/root && return
|
|
echo "0 0 * * * /etc/init.d/acme start" >> /etc/crontabs/root
|
|
/etc/init.d/cron start
|
|
}
|
|
|
|
log()
|
|
{
|
|
logger -t acme -s -p daemon.info "$@"
|
|
}
|
|
|
|
err()
|
|
{
|
|
logger -t acme -s -p daemon.err "$@"
|
|
}
|
|
|
|
debug()
|
|
{
|
|
[ "$DEBUG" -eq "1" ] && logger -t acme -s -p daemon.debug "$@"
|
|
}
|
|
|
|
get_listeners()
|
|
{
|
|
netstat -nptl 2>/dev/null | awk 'match($4, /:80$/){split($7, parts, "/"); print parts[2];}' | uniq | tr "\n" " "
|
|
}
|
|
|
|
pre_checks()
|
|
{
|
|
main_domain="$1"
|
|
|
|
log "Running pre checks for $main_domain."
|
|
|
|
listeners="$(get_listeners)"
|
|
debug "port80 listens: $listeners"
|
|
|
|
case "$listeners" in
|
|
"uhttpd")
|
|
debug "Found uhttpd listening on port 80; trying to disable."
|
|
|
|
UHTTPD_LISTEN_HTTP=$(uci get uhttpd.main.listen_http)
|
|
|
|
if [ -z "$UHTTPD_LISTEN_HTTP" ]; then
|
|
err "$main_domain: Unable to find uhttpd listen config."
|
|
err "Manually disable uhttpd or set webroot to continue."
|
|
return 1
|
|
fi
|
|
|
|
uci set uhttpd.main.listen_http=''
|
|
uci commit uhttpd || return 1
|
|
if ! /etc/init.d/uhttpd reload ; then
|
|
uci set uhttpd.main.listen_http="$UHTTPD_LISTEN_HTTP"
|
|
uci commit uhttpd
|
|
return 1
|
|
fi
|
|
;;
|
|
"")
|
|
debug "Nothing listening on port 80."
|
|
;;
|
|
*)
|
|
err "$main_domain: Cannot run in standalone mode; another daemon is listening on port 80."
|
|
err "Disable other daemon or set webroot to continue."
|
|
return 1
|
|
;;
|
|
esac
|
|
|
|
iptables -I input_rule -p tcp --dport 80 -j ACCEPT -m comment --comment "ACME" || return 1
|
|
ip6tables -I input_rule -p tcp --dport 80 -j ACCEPT -m comment --comment "ACME" || return 1
|
|
debug "v4 input_rule: $(iptables -nvL input_rule)"
|
|
debug "v6 input_rule: $(ip6tables -nvL input_rule)"
|
|
return 0
|
|
}
|
|
|
|
post_checks()
|
|
{
|
|
log "Running post checks (cleanup)."
|
|
# The comment ensures we only touch our own rules. If no rules exist, that
|
|
# is fine, so hide any errors
|
|
iptables -D input_rule -p tcp --dport 80 -j ACCEPT -m comment --comment "ACME" 2>/dev/null
|
|
ip6tables -D input_rule -p tcp --dport 80 -j ACCEPT -m comment --comment "ACME" 2>/dev/null
|
|
|
|
if [ -e /etc/init.d/uhttpd ] && [ -n "$UHTTPD_LISTEN_HTTP" ]; then
|
|
uci set uhttpd.main.listen_http="$UHTTPD_LISTEN_HTTP"
|
|
uci commit uhttpd
|
|
/etc/init.d/uhttpd reload
|
|
UHTTPD_LISTEN_HTTP=
|
|
fi
|
|
}
|
|
|
|
err_out()
|
|
{
|
|
post_checks
|
|
exit 1
|
|
}
|
|
|
|
int_out()
|
|
{
|
|
post_checks
|
|
trap - INT
|
|
kill -INT $$
|
|
}
|
|
|
|
is_staging()
|
|
{
|
|
local main_domain="$1"
|
|
|
|
grep -q "acme-staging" "$STATE_DIR/$main_domain/${main_domain}.conf"
|
|
return $?
|
|
}
|
|
|
|
issue_cert()
|
|
{
|
|
local section="$1"
|
|
local acme_args=
|
|
local enabled
|
|
local use_staging
|
|
local update_uhttpd
|
|
local keylength
|
|
local domains
|
|
local main_domain
|
|
local moved_staging=0
|
|
local failed_dir
|
|
local webroot
|
|
local dns
|
|
|
|
config_get_bool enabled "$section" enabled 0
|
|
config_get_bool use_staging "$section" use_staging
|
|
config_get_bool update_uhttpd "$section" update_uhttpd
|
|
config_get domains "$section" domains
|
|
config_get keylength "$section" keylength
|
|
config_get webroot "$section" webroot
|
|
config_get dns "$section" dns
|
|
|
|
[ "$enabled" -eq "1" ] || return
|
|
|
|
[ "$DEBUG" -eq "1" ] && acme_args="$acme_args --debug"
|
|
|
|
set -- $domains
|
|
main_domain=$1
|
|
|
|
[ -n "$webroot" ] || [ -n "$dns" ] || pre_checks "$main_domain" || return 1
|
|
|
|
log "Running ACME for $main_domain"
|
|
|
|
if [ -e "$STATE_DIR/$main_domain" ]; then
|
|
if [ "$use_staging" -eq "0" ] && is_staging "$main_domain"; then
|
|
log "Found previous cert issued using staging server. Moving it out of the way."
|
|
mv "$STATE_DIR/$main_domain" "$STATE_DIR/$main_domain.staging"
|
|
moved_staging=1
|
|
else
|
|
log "Found previous cert config. Issuing renew."
|
|
$ACME --home "$STATE_DIR" --renew -d "$main_domain" $acme_args || return 1
|
|
return 0
|
|
fi
|
|
fi
|
|
|
|
|
|
acme_args="$acme_args $(for d in $domains; do echo -n "-d $d "; done)"
|
|
acme_args="$acme_args --keylength $keylength"
|
|
[ -n "$ACCOUNT_EMAIL" ] && acme_args="$acme_args --accountemail $ACCOUNT_EMAIL"
|
|
[ "$use_staging" -eq "1" ] && acme_args="$acme_args --staging"
|
|
|
|
if [ -n "$dns" ]; then
|
|
log "Using dns mode"
|
|
acme_args="$acme_args --dns $dns"
|
|
elif [ -z "$webroot" ]; then
|
|
log "Using standalone mode"
|
|
acme_args="$acme_args --standalone"
|
|
else
|
|
if [ ! -d "$webroot" ]; then
|
|
err "$main_domain: Webroot dir '$webroot' does not exist!"
|
|
return 1
|
|
fi
|
|
log "Using webroot dir: $webroot"
|
|
acme_args="$acme_args --webroot $webroot"
|
|
fi
|
|
|
|
handle_credentials() {
|
|
local credential="$1"
|
|
eval export $credential
|
|
}
|
|
config_list_foreach "$section" credentials handle_credentials
|
|
|
|
if ! $ACME --home "$STATE_DIR" --issue $acme_args; then
|
|
failed_dir="$STATE_DIR/${main_domain}.failed-$(date +%s)"
|
|
err "Issuing cert for $main_domain failed. Moving state to $failed_dir"
|
|
[ -d "$STATE_DIR/$main_domain" ] && mv "$STATE_DIR/$main_domain" "$failed_dir"
|
|
if [ "$moved_staging" -eq "1" ]; then
|
|
err "Restoring staging certificate"
|
|
mv "$STATE_DIR/${main_domain}.staging" "$STATE_DIR/${main_domain}"
|
|
fi
|
|
return 1
|
|
fi
|
|
|
|
if [ "$update_uhttpd" -eq "1" ]; then
|
|
uci set uhttpd.main.key="$STATE_DIR/${main_domain}/${main_domain}.key"
|
|
uci set uhttpd.main.cert="$STATE_DIR/${main_domain}/fullchain.cer"
|
|
# commit and reload is in post_checks
|
|
fi
|
|
|
|
post_checks
|
|
}
|
|
|
|
load_vars()
|
|
{
|
|
local section="$1"
|
|
|
|
STATE_DIR=$(config_get "$section" state_dir)
|
|
ACCOUNT_EMAIL=$(config_get "$section" account_email)
|
|
DEBUG=$(config_get "$section" debug)
|
|
}
|
|
|
|
check_cron
|
|
[ -n "$CHECK_CRON" ] && exit 0
|
|
|
|
config_load acme
|
|
config_foreach load_vars acme
|
|
|
|
if [ -z "$STATE_DIR" ] || [ -z "$ACCOUNT_EMAIL" ]; then
|
|
err "state_dir and account_email must be set"
|
|
exit 1
|
|
fi
|
|
|
|
[ -d "$STATE_DIR" ] || mkdir -p "$STATE_DIR"
|
|
|
|
trap err_out HUP TERM
|
|
trap int_out INT
|
|
|
|
config_foreach issue_cert cert
|
|
|
|
exit 0
|