[ACME] Validate AAAA, if any, before A - fail on AAAA mismatch (LE prioritization)
André
parent
5905a3919c
commit
f88a72eedd
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@ -14,5 +14,6 @@ RUN apk add --update --no-cache \
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tini
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COPY docker-entrypoint.sh /srv/docker-entrypoint.sh
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COPY expand6.sh /srv/expand6.sh
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CMD ["/sbin/tini", "-g", "--", "/srv/docker-entrypoint.sh"]
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@ -2,6 +2,9 @@
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set -o pipefail
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exec 5>&1
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# Thanks to https://github.com/cvmiller -> https://github.com/cvmiller/expand6
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source /srv/expand6.sh
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log_f() {
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if [[ ${2} == "no_nl" ]]; then
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echo -n "$(date) - ${1}"
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@ -69,8 +72,8 @@ get_ipv4(){
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IPV4_SRCS[2]="icanhazip.com"
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IPV4_SRCS[3]="v4.ident.me"
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IPV4_SRCS[4]="ipecho.net/plain"
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IPV4_SRCS[5]="mailcow.email/ip.php"
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until [[ ! -z ${IPV4} ]] || [[ ${TRY} -ge 100 ]]; do
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IPV4_SRCS[5]="ip4.mailcow.email"
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until [[ ! -z ${IPV4} ]] || [[ ${TRY} -ge 10 ]]; do
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IPV4=$(curl --connect-timeout 3 -m 10 -L4s ${IPV4_SRCS[$RANDOM % ${#IPV4_SRCS[@]} ]} | grep -E "^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$")
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[[ ! -z ${TRY} ]] && sleep 1
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TRY=$((TRY+1))
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@ -78,6 +81,22 @@ get_ipv4(){
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echo ${IPV4}
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}
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get_ipv6(){
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local IPV6=
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local IPV6_SRCS=
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local TRY=
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IPV6_SRCS[0]="ifconfig.co"
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IPV6_SRCS[1]="icanhazip.com"
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IPV6_SRCS[2]="v6.ident.me"
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IPV6_SRCS[3]="ip6.mailcow.email"
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until [[ ! -z ${IPV6} ]] || [[ ${TRY} -ge 10 ]]; do
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IPV6=$(curl --connect-timeout 3 -m 10 -L6s ${IPV6_SRCS[$RANDOM % ${#IPV6_SRCS[@]} ]} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$")
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[[ ! -z ${TRY} ]] && sleep 1
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TRY=$((TRY+1))
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done
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echo ${IPV6}
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}
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[[ ! -f ${ACME_BASE}/dhparams.pem ]] && cp ${SSL_EXAMPLE}/dhparams.pem ${ACME_BASE}/dhparams.pem
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if [[ -f ${ACME_BASE}/cert.pem ]] && [[ -f ${ACME_BASE}/key.pem ]]; then
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@ -112,8 +131,8 @@ else
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fi
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fi
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log_f "Waiting for database... "
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while ! mysqladmin ping --host mysql -u${DBUSER} -p${DBPASS} --silent; do
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echo "Waiting for database to come up..."
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sleep 2
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done
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@ -128,7 +147,11 @@ while true; do
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declare -a VALIDATED_CONFIG_DOMAINS
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declare -a ADDITIONAL_VALIDATED_SAN
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IFS=',' read -r -a ADDITIONAL_SAN_ARR <<< "${ADDITIONAL_SAN}"
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log_f "Detecting IP addresses... " no_nl
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IPV4=$(get_ipv4)
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IPV6=$(get_ipv6)
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log_f "OK" no_date
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# Container ids may have changed
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CONTAINERS_RESTART=($(curl --silent http://dockerapi:8080/containers/json | jq -r '.[] | {name: .Config.Labels["com.docker.compose.service"], id: .Id}' | jq -rc 'select( .name | tostring | contains("nginx-mailcow") or contains("postfix-mailcow") or contains("dovecot-mailcow")) | .id' | tr "\n" " "))
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@ -138,7 +161,7 @@ while true; do
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DOMAIN_TABLE=$(mysql -h mysql-mailcow -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SHOW TABLES LIKE 'domain'" -Bs)
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[[ -z ${DOMAIN_TABLE} ]] && sleep 10
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done
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log_f "Found domain tables." no_date
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log_f "OK" no_date
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while read domains; do
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SQL_DOMAIN_ARR+=("${domains}")
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@ -146,7 +169,16 @@ while true; do
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for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
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A_CONFIG=$(dig A autoconfig.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${A_CONFIG} ]]; then
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AAAA_CONFIG=$(dig AAAA autoconfig.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${AAAA_CONFIG} ]]; then
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log_f "Found AAAA record for autoconfig.${SQL_DOMAIN}: ${AAAA_CONFIG} - skipping A record check"
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if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_CONFIG}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
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log_f "Confirmed AAAA record autoconfig.${SQL_DOMAIN}"
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VALIDATED_CONFIG_DOMAINS+=("autoconfig.${SQL_DOMAIN}")
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else
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log_f "Cannot match your IP ${IPV6:-NO_IPV6_LINK} against hostname autoconfig.${SQL_DOMAIN} ($(expand ${AAAA_CONFIG}))"
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fi
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elif [[ ! -z ${A_CONFIG} ]]; then
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log_f "Found A record for autoconfig.${SQL_DOMAIN}: ${A_CONFIG}"
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if [[ ${IPV4:-ERR} == ${A_CONFIG} ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
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log_f "Confirmed A record autoconfig.${SQL_DOMAIN}"
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@ -155,11 +187,20 @@ while true; do
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log_f "Cannot match your IP ${IPV4} against hostname autoconfig.${SQL_DOMAIN} (${A_CONFIG})"
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fi
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else
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log_f "No A record for autoconfig.${SQL_DOMAIN} found"
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log_f "No A or AAAA record found for hostname autoconfig.${SQL_DOMAIN}"
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fi
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A_DISCOVER=$(dig A autodiscover.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${A_DISCOVER} ]]; then
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AAAA_DISCOVER=$(dig AAAA autodiscover.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${AAAA_DISCOVER} ]]; then
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log_f "Found AAAA record for autodiscover.${SQL_DOMAIN}: ${AAAA_DISCOVER} - skipping A record check"
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if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_DISCOVER}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
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log_f "Confirmed AAAA record autodiscover.${SQL_DOMAIN}"
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VALIDATED_CONFIG_DOMAINS+=("autodiscover.${SQL_DOMAIN}")
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else
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log_f "Cannot match your IP ${IPV6:-NO_IPV6_LINK} against hostname autodiscover.${SQL_DOMAIN} ($(expand ${AAAA_DISCOVER}))"
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fi
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elif [[ ! -z ${A_DISCOVER} ]]; then
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log_f "Found A record for autodiscover.${SQL_DOMAIN}: ${A_DISCOVER}"
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if [[ ${IPV4:-ERR} == ${A_DISCOVER} ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
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log_f "Confirmed A record autodiscover.${SQL_DOMAIN}"
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@ -168,7 +209,7 @@ while true; do
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log_f "Cannot match your IP ${IPV4} against hostname autodiscover.${SQL_DOMAIN} (${A_DISCOVER})"
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fi
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else
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log_f "No A record for autodiscover.${SQL_DOMAIN} found"
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log_f "No A or AAAA record found for hostname autodiscover.${SQL_DOMAIN}"
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fi
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done
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@ -0,0 +1,131 @@
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#!/bin/bash
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##################################################################################
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#
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# Copyright (C) 2017 Craig Miller
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#
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# See the file "LICENSE" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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# Distributed under GPLv2 License
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#
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##################################################################################
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# IPv6 Address Expansion functions
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#
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# by Craig Miller 19 Feb 2017
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#
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# 16 Nov 2017 v0.93 - added CLI functionality
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VERSION=0.93
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empty_addr="0000:0000:0000:0000:0000:0000:0000:0000"
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empty_addr_len=${#empty_addr}
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function usage {
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echo " $0 - expand compressed IPv6 addresss "
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echo " e.g. $0 2001:db8:1:12:123::456 "
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echo " "
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echo " -t self test"
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echo " "
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echo " By Craig Miller - Version: $VERSION"
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exit 1
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}
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if [ "$1" == "-h" ]; then
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#call help
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usage
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fi
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#
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# Expands IPv6 quibble to 4 digits with leading zeros e.g. db8 -> 0db8
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#
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# Returns string with expanded quibble
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function expand_quibble() {
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addr=$1
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# create array of quibbles
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addr_array=(${addr//:/ })
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addr_array_len=${#addr_array[@]}
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# step thru quibbles
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for ((i=0; i< $addr_array_len ; i++ ))
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do
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quibble=${addr_array[$i]}
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quibble_len=${#quibble}
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case $quibble_len in
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1) quibble="000$quibble";;
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2) quibble="00$quibble";;
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3) quibble="0$quibble";;
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esac
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addr_array[$i]=$quibble
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done
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# reconstruct addr from quibbles
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return_str=${addr_array[*]}
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return_str="${return_str// /:}"
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echo $return_str
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}
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#
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# Expands IPv6 address :: format to full zeros
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#
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# Returns string with expanded address
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function expand() {
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if [[ $1 == *"::"* ]]; then
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# check for leading zeros on front_addr
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if [[ $1 == "::"* ]]; then
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front_addr=0
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else
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front_addr=$(echo $1 | sed -r 's;([^ ]+)::.*;\1;')
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fi
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# check for trailing zeros on back_addr
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if [[ $1 == *"::" ]]; then
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back_addr=0
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else
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back_addr=$(echo $1 | sed -r 's;.*::([^ ]+);\1;')
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fi
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front_addr=$(expand_quibble $front_addr)
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back_addr=$(expand_quibble $back_addr)
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new_addr=$empty_addr
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front_addr_len=${#front_addr}
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back_addr_len=${#back_addr}
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# calculate fill needed
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num_zeros=$(($empty_addr_len - $front_addr_len - $back_addr_len - 1))
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#fill_str=${empty_addr[0]:0:$num_zeros}
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new_addr="$front_addr:${empty_addr[0]:0:$num_zeros}$back_addr"
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# return expanded address
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echo $new_addr
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else
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# return input with expandd quibbles
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expand_quibble $1
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fi
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}
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# self test - call with '-t' parameter
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if [ "$1" == "-t" ]; then
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# add address examples to test
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expand fd11::1d70:cf84:18ef:d056
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expand 2a01::1
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expand fe80::f203:8cff:fe3f:f041
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expand 2001:db8:123::5
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expand 2001:470:ebbd:0:f203:8cff:fe3f:f041
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# special cases
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expand ::1
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expand fd32:197d:3022:1101::
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exit 1
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fi
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# allow script to be sourced (with no arguements)
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if [[ $1 != "" ]]; then
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# validate input is an IPv6 address
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if [[ $1 == *":"* ]]; then
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expand $1
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else
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echo "ERROR: unregcognized IPv6 address $1"
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exit 1
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fi
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fi
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