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144 lines
3.4 KiB
144 lines
3.4 KiB
#!/bin/sh
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# Wrapper for acme.sh to work on openwrt.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 3 of the License, or (at your option) any later
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# version.
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#
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# Author: Toke Høiland-Jørgensen <toke@toke.dk>
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CHECK_CRON=$1
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ACME=/usr/lib/acme/acme.sh
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export SSL_CERT_DIR=/etc/ssl/certs
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UHTTPD_REDIRECT_HTTPS=
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UHTTPD_LISTEN_HTTP=
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STATE_DIR='/etc/acme'
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ACCOUNT_EMAIL=
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DEBUG=0
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. /lib/functions.sh
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check_cron()
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{
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[ -f "/etc/crontabs/root" ] && grep -q '/etc/init.d/acme' /etc/crontabs/root && return
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echo "0 0 * * * /etc/init.d/acme start" >> /etc/crontabs/root
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/etc/init.d/cron start
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}
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pre_checks()
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{
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echo "Running pre checks."
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check_cron
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UHTTPD_REDIRECT_HTTPS=$(uci get uhttpd.main.redirect_https)
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UHTTPD_LISTEN_HTTP=$(uci get uhttpd.main.listen_http)
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uci set uhttpd.main.redirect_https=1
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uci set uhttpd.main.listen_http='0.0.0.0:80'
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uci commit uhttpd
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/etc/init.d/uhttpd reload || return 1
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iptables -I input_rule -p tcp --dport 80 -j ACCEPT || return 1
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return 0
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}
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post_checks()
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{
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echo "Running post checks (cleanup)."
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iptables -D input_rule -p tcp --dport 80 -j ACCEPT
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uci set uhttpd.main.redirect_https="$UHTTPD_REDIRECT_HTTPS"
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uci set uhttpd.main.listen_http="$UHTTPD_LISTEN_HTTP"
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uci commit uhttpd
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/etc/init.d/uhttpd reload
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}
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err_out()
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{
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post_checks
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exit 1
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}
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int_out()
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{
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post_checks
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trap - SIGINT
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kill -SIGINT $$
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}
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issue_cert()
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{
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local section="$1"
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local acme_args=
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local enabled
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local use_staging
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local update_uhttpd
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local keylength
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local domains
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local main_domain
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config_get_bool enabled "$section" enabled 0
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config_get_bool use_staging "$section" use_staging
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config_get_bool update_uhttpd "$section" update_uhttpd
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config_get domains "$section" domains
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config_get keylength "$section" keylength
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[ "$enabled" -eq "1" ] || return
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[ "$DEBUG" -eq "1" ] && acme_args="$acme_args --debug"
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set -- $domains
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main_domain=$1
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if [ -e "$STATE_DIR/$main_domain" ]; then
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$ACME --home "$STATE_DIR" --renew -d "$main_domain" $acme_args || return 1
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return 0
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fi
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acme_args="$acme_args $(for d in $domains; do echo -n "-d $d "; done)"
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acme_args="$acme_args --webroot $(uci get uhttpd.main.home)"
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acme_args="$acme_args --keylength $keylength"
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[ -n "$ACCOUNT_EMAIL" ] && acme_args="$acme_args --accountemail $ACCOUNT_EMAIL"
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[ "$use_staging" -eq "1" ] && acme_args="$acme_args --staging"
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if ! $ACME --home "$STATE_DIR" --issue $acme_args; then
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echo "Issuing cert for $main_domain failed. It may be necessary to remove $STATE_DIR/$main_domain to recover." >&2
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return 1
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fi
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if [ "$update_uhttpd" -eq "1" ]; then
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uci set uhttpd.main.key="$STATE_DIR/${main_domain}/${main_domain}.key"
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uci set uhttpd.main.cert="$STATE_DIR/${main_domain}/fullchain.cer"
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# commit and reload is in post_checks
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fi
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}
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load_vars()
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{
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local section="$1"
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STATE_DIR=$(config_get "$section" state_dir)
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ACCOUNT_EMAIL=$(config_get "$section" account_email)
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DEBUG=$(config_get "$section" debug)
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}
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if [ -n "$CHECK_CRON" ]; then
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check_cron
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exit 0
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fi
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config_load acme
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config_foreach load_vars acme
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pre_checks || exit 1
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trap err_out SIGHUP SIGTERM
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trap int_out SIGINT
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config_foreach issue_cert cert
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post_checks
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exit 0
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