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######################################################## |
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# This is the main config file for the Dehydrated # |
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# AlibabaCloud DNS-01 challenge Hook script # |
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# # |
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# Default values of this config are in comments # |
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######################################################## |
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# requirements: openssl, curl, jq, dig |
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# Alicloud Public API Credentials |
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API_KEY_ID='' # required |
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API_KEY_SECRET='' # required |
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# Debugging (yes/no) |
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DEBUG="no" |
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# Extra options passed to the curl binary (default: <unset>) |
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CURL_OPTS="" |
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# Configure notifications |
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MAIL_FROM="" |
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MAIL_RCPT="ad_user@runbox.com" |
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# Configure certificate and key locations for deployment |
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DEPLOYED_CERTDIR=/etc/ssl/certs |
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DEPLOYED_KEYDIR=/etc/ssl/private |
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# Email Sending Method Options |
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# + SENDMAIL (default) |
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# + SMTP |
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MAIL_METHOD=SENDMAIL |
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# SMTP options |
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#SMTP_DOMAIN=localhost |
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#SMTP_SERVER= |
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#SMTP_PORT=25 |
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@ -0,0 +1,458 @@ |
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#!/usr/bin/env bash |
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# See these links for docs: |
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# - https://www.alibabacloud.com/help/en/doc-detail/29774.htm |
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# - https://docs-aliyun.cn-hangzhou.oss.aliyun-inc.com/pdf/alidns-intl-api-intl-en-2018-06-22.pdf |
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rawurlencode() { |
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local string="${1}" |
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local strlen=${#string} |
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local encoded="" |
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local pos c o |
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for (( pos=0 ; pos<strlen ; pos++ )); do |
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c=${string:$pos:1} |
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case "$c" in |
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[-_.~a-zA-Z0-9] ) o="${c}" ;; |
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* ) printf -v o '%%%02X' "'$c" |
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esac |
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encoded+="${o}" |
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done |
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echo "${encoded}" |
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} |
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function make_api_request { |
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local API_BASEURL='https://dns.aliyuncs.com/' |
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local TIMESTAMP=$(date --utc +%Y-%m-%dT%H:%M:%SZ) |
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local NONCE=$(echo "$(date +%s)+$$" | openssl dgst -md5 -binary | openssl base64) |
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declare -A QUERY=( |
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[Format]="JSON" |
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[Version]="2015-01-09" |
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[SignatureMethod]="HMAC-SHA1" |
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[SignatureVersion]="1.0" |
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[SignatureNonce]=$(rawurlencode "$NONCE") |
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[AccessKeyId]=$(rawurlencode "${API_KEY_ID}") |
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[Timestamp]=$(rawurlencode "${TIMESTAMP}") |
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) |
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# append request parameters |
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while (( "$#" >= 2 )); do |
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PARAM=${1}; shift |
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VALUE=${1}; shift |
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[ "x$PARAM" = "x" ] && break |
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QUERY[$PARAM]=$(rawurlencode "$VALUE") |
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done |
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# sort query array |
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readarray -td '' SORTED < <(printf '%s\0' "${!QUERY[@]}" | sort -z) |
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# gen signature |
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local QUERYSTR="" |
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for P in "${SORTED[@]}"; do |
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if [ ${#QUERYSTR} -gt 0 ]; then QUERYSTR="$QUERYSTR&"; fi |
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QUERYSTR="${QUERYSTR}${P}=${QUERY[$P]}" |
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done |
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local SIGNSTR=$(printf "GET&%%2F&%s" $(rawurlencode "$QUERYSTR")) |
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local SIGN=$(echo -n "$SIGNSTR" | openssl dgst -sha1 -hmac "${API_KEY_SECRET}&" -binary | openssl base64) |
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local URL="$API_BASEURL?${QUERYSTR}&Signature=${SIGN}" |
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if [ "x$DEBUG" = "xyes" ]; then |
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echo "QUERY: ${QUERY[@]}" |
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echo "SORTED: ${SORTED[@]}" |
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echo "SIGNSTR: $SIGNSTR" |
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echo "SIGN: $SIGN" |
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echo "NONCE: $NONCE" |
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echo "URL: $URL" |
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fi |
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# make request |
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RES=$(curl --silent --show-error $CURL_OPTS "$URL") |
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echo "$RES" |
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} |
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function deploy_challenge { |
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local FIRSTDOMAIN="${1}" |
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local SLD=`sed -E 's/(.*\.)*([^.]+)\..*/\2/' <<< "${FIRSTDOMAIN}"` |
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local TLD=`sed -E 's/.*\.([^.]+)/\1/' <<< "${FIRSTDOMAIN}"` |
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# add challenge records to post data |
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local count=0 |
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while (( "$#" >= 3 )); do |
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# DOMAIN |
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# The domain name (CN or subject alternative name) being validated. |
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DOMAIN="${1}"; shift |
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# TOKEN_FILENAME |
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# The name of the file containing the token to be served for HTTP |
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# validation. Should be served by your web server as |
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# /.well-known/acme-challenge/${TOKEN_FILENAME}. |
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TOKEN_FILENAME="${1}"; shift |
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# TOKEN_VALUE |
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# The token value that needs to be served for validation. For DNS |
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# validation, this is what you want to put in the _acme-challenge |
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# TXT record. For HTTP validation it is the value that is expected |
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# be found in the $TOKEN_FILENAME file. |
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TOKEN_VALUE[$count]="${1}"; shift |
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SUB[$count]=`sed -E "s/$SLD.$TLD//" <<< "${DOMAIN}"` |
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CHALLENGE_HOSTNAME=`sed -E "s/\.$//" <<< "${SUB[$count]}"` |
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local RES=$(make_api_request \ |
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"Action" "AddDomainRecord" \ |
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"DomainName" "$DOMAIN" \ |
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"Type" "TXT" \ |
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"RR" "_acme-challenge${CHALLENGE_HOSTNAME:+.$CHALLENGE_HOSTNAME}" \ |
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"Value" "${TOKEN_VALUE[$count]}") |
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echo "$RES" | grep -q '"RecordId":' |
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if [[ $? != 0 ]]; then |
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echo "API REQ ERROR: $RES" |
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return 1 |
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fi |
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echo "Deployed challenge for $CHALLENGE_HOSTNAME -- ${TOKEN_VALUE[$count]}" |
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(( count++ )) |
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done |
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local items=$count |
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# get nameservers for domain |
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IFS=$'\n' read -r -d '' -a nameservers < <( dig @1.1.1.1 +short ns $SLD.$TLD && printf '\0' ) |
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# wait up to 2 minutes for DNS updates to be provisioned (check at 15 second intervals) |
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timer=0 |
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count=0 |
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while [ $count -lt $items ]; do |
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# check for DNS propagation |
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while true; do |
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for ns in ${nameservers[@]}; do |
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dig @${ns} txt "_acme-challenge${SUB[$count]:+.${SUB[$count]%.}}.$SLD.$TLD" | grep -qe "${TOKEN_VALUE[$count]}" |
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if [[ $? == 0 ]]; then |
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break 2 |
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fi |
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done |
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if [[ "$timer" -ge 120 ]]; then |
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# time has exceeded 2 minutes |
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send_error $FIRSTDOMAIN |
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return 1 |
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else |
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echo " + DNS not propagated. Waiting 15s for record creation and replication... Total time elapsed has been $timer seconds." |
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((timer+=15)) |
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sleep 15 |
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fi |
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done |
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((count++)) |
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done |
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return 0 |
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} |
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function clean_challenge { |
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local DOMAIN="${1}" TOKEN_FILENAME="${2}" TOKEN_VALUE="${3}" |
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# This hook is called after attempting to validate each domain, |
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# whether or not validation was successful. Here you can delete |
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# files or DNS records that are no longer needed. |
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# |
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# The parameters are the same as for deploy_challenge. |
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local FIRSTDOMAIN="${1}" |
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local SLD=`sed -E 's/(.*\.)*([^.]+)\..*/\2/' <<< "${FIRSTDOMAIN}"` |
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local TLD=`sed -E 's/.*\.([^.]+)/\1/' <<< "${FIRSTDOMAIN}"` |
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local RES=$(make_api_request \ |
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"Action" "DescribeDomainRecords" \ |
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"Domain" "$FIRSTDOMAIN" \ |
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"SearchMode" "ADVANCED" \ |
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"Type" "TXT") |
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echo "$RES" | grep -q '"RecordId":' |
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if [[ $? != 0 ]]; then |
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echo "API REQ ERROR: $RES" |
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return 1 |
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fi |
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declare -A RECORDS |
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echo "$RES" | jq -r -c '.DomainRecords.Record | .[] | [ .RecordId, .Value ] | join(" ")' | while read RECID VALUE; do |
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RECORDS[$RECID]=$VALUE |
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done |
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# drop expired records |
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while (( "$#" >= 3 )); do |
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# DOMAIN |
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# The domain name (CN or subject alternative name) being validated. |
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DOMAIN="${1}"; shift |
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# TOKEN_FILENAME |
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# The name of the file containing the token to be served for HTTP |
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# validation. Should be served by your web server as |
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# /.well-known/acme-challenge/${TOKEN_FILENAME}. |
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TOKEN_FILENAME="${1}"; shift |
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# TOKEN_VALUE |
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# The token value that needs to be served for validation. For DNS |
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# validation, this is what you want to put in the _acme-challenge |
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# TXT record. For HTTP validation it is the value that is expected |
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# be found in the $TOKEN_FILENAME file. |
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TOKEN_VALUE[$count]="${1}"; shift |
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for RECID in "${!RECORDS[@]}"; do |
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[[ "x${RECORDS[$RECID]}" != "x$TOKEN_VALUE" ]] && continue |
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RES=$(make_api_request \ |
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"Action" "DeleteDomainRecord" \ |
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"RecordId" "$RECID" |
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) |
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echo "$RES" | grep -q '"RecordId":' |
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if [[ $? != 0 ]]; then |
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echo "API REQ ERROR: $RES" |
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return 1 |
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fi |
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echo "Dropped record if $RECID -- $TOKEN_VALUE" |
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done # for |
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done # while |
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} |
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function deploy_cert { |
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local DOMAIN="${1}" KEYFILE="${2}" CERTFILE="${3}" FULLCHAINFILE="${4}" CHAINFILE="${5}" TIMESTAMP="${6}" |
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# This hook is called once for each certificate that has been |
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# produced. Here you might, for instance, copy your new certificates |
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# to service-specific locations and reload the service. |
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# |
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# Parameters: |
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# - DOMAIN |
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# The primary domain name, i.e. the certificate common |
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# name (CN). |
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# - KEYFILE |
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# The path of the file containing the private key. |
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# - CERTFILE |
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# The path of the file containing the signed certificate. |
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# - FULLCHAINFILE |
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# The path of the file containing the full certificate chain. |
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# - CHAINFILE |
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# The path of the file containing the intermediate certificate(s). |
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# - TIMESTAMP |
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# Timestamp when the specified certificate was created. |
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echo "Deploying certificate for ${DOMAIN}..." |
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# copy new certificate to /etc/pki/tls/certs folder |
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cp "${CERTFILE}" "${DEPLOYED_CERTDIR}/${DOMAIN}.crt" |
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echo " + certificate copied" |
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# copy new key to /etc/pki/tls/private folder |
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cp "${KEYFILE}" "${DEPLOYED_KEYDIR}/${DOMAIN}.key" |
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echo " + key copied" |
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# copy new chain file which contains the intermediate certificate(s) |
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cp "${CHAINFILE}" "${DEPLOYED_CERTDIR}/letsencrypt-intermediate-certificates.pem" |
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echo " + intermediate certificate chain copied" |
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# combine certificate and chain file (used by Nginx) |
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cat "${CERTFILE}" "${CHAINFILE}" > "${DEPLOYED_CERTDIR}/${DOMAIN}-chain.crt" |
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echo " + combine certificate and intermediate certificate chain" |
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# reload services |
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echo " + Reloading Services" |
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"$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/reload.sh" "$@" |
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# send email notification |
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send_notification $DOMAIN |
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return 0 |
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} |
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function unchanged_cert { |
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local DOMAIN="${1}" KEYFILE="${2}" CERTFILE="${3}" FULLCHAINFILE="${4}" CHAINFILE="${5}" |
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# This hook is called once for each certificate that is still |
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# valid and therefore wasn't reissued. |
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# |
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# Parameters: |
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# - DOMAIN |
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# The primary domain name, i.e. the certificate common |
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# name (CN). |
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# - KEYFILE |
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# The path of the file containing the private key. |
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# - CERTFILE |
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# The path of the file containing the signed certificate. |
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# - FULLCHAINFILE |
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# The path of the file containing the full certificate chain. |
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# - CHAINFILE |
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# The path of the file containing the intermediate certificate(s). |
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} |
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function invalid_challenge() { |
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local DOMAIN="${1}" RESPONSE="${2}" |
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# This hook is called if the challenge response has failed, so domain |
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# owners can be aware and act accordingly. |
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# |
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# Parameters: |
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# - DOMAIN |
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# The primary domain name, i.e. the certificate common |
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# name (CN). |
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# - RESPONSE |
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# The response that the verification server returned |
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} |
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function request_failure() { |
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local STATUSCODE="${1}" REASON="${2}" REQTYPE="${3}" |
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# This hook is called when an HTTP request fails (e.g., when the ACME |
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# server is busy, returns an error, etc). It will be called upon any |
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# response code that does not start with '2'. Useful to alert admins |
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# about problems with requests. |
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# |
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# Parameters: |
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# - STATUSCODE |
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# The HTML status code that originated the error. |
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# - REASON |
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# The specified reason for the error. |
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# - REQTYPE |
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# The kind of request that was made (GET, POST...) |
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} |
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function startup_hook() { |
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# This hook is called before the cron command to do some initial tasks |
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# (e.g. starting a webserver). |
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: |
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} |
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function exit_hook() { |
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# This hook is called at the end of the cron command and can be used to |
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# do some final (cleanup or other) tasks. |
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: |
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} |
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# Setup default config values, load configuration file |
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function load_config() { |
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# Default values |
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API_KEY_ID="" |
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API_KEY_SECRET="" |
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DEBUG="no" |
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CURL_OPTS="" |
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MAIL_FROM="dehydrated@example.com" |
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MAIL_RCPT="admin@example.com" |
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DEPLOYED_CERTDIR=/etc/pki/tls/certs |
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DEPLOYED_KEYDIR=/etc/pki/tls/private |
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MAIL_METHOD=SENDMAIL |
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SMTP_DOMAIN=localhost |
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SMTP_SERVER="" |
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SMTP_PORT=25 |
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|
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# Check if config file exists |
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if [[ ! -f "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/config" ]]; then |
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echo "#" >&2 |
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echo "# !! WARNING !! No main config file found, using default config!" >&2 |
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echo "#" >&2 |
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else |
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. "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/config" |
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fi |
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} |
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function send_error { |
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local DOMAIN="${1}" TODAYS_DATE=`date` |
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# set message content |
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MSG_CONTENT=$(cat << EOF |
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Content-Type:text/html;charset='UTF-8' |
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Content-Transfer-Encoding:7bit |
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From:SSL Certificate Renewal Script<$MAIL_FROM> |
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To:<$MAIL_RCPT> |
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Subject: New Certificate Deployment Failed - $DOMAIN - $TODAYS_DATE |
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|
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<html> |
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<p>A new certificate for the domain, <b>${FIRSTDOMAIN}</b>, has failed.</p> |
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<p>DNS record did not propagate. Unable to verify domain is yours.</p> |
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</html> |
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EOF |
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) |
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IFS=' |
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' |
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|
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if [ "${MAIL_METHOD}" == "SENDMAIL" ]; then |
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# send notification email |
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cat << EOF | /usr/sbin/sendmail -t -f $MAIL_FROM |
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$MSG_CONTENT |
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EOF |
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else |
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# prepare notification email message |
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a=$(cat << EOF |
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HELO $SMTP_DOMAIN |
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MAIL FROM: <$MAIL_FROM> |
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RCPT TO: <$MAIL_RCPT> |
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DATA |
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|
$MSG_CONTENT |
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|
. |
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|
QUIT |
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|
. |
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EOF |
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) |
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IFS=' |
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' |
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|
|
||||||
|
# send notification email |
||||||
|
exec 1<>/dev/tcp/$SMTP_SERVER/$SMTP_PORT |
||||||
|
declare -a b=($a) |
||||||
|
for x in "${b[@]}" |
||||||
|
do |
||||||
|
echo $x |
||||||
|
sleep .1 |
||||||
|
done |
||||||
|
fi |
||||||
|
} |
||||||
|
|
||||||
|
function send_notification { |
||||||
|
local DOMAIN="${1}" TODAYS_DATE=`date` |
||||||
|
|
||||||
|
# set message content |
||||||
|
MSG_CONTENT=$(cat << EOF |
||||||
|
Content-Type:text/html;charset='UTF-8' |
||||||
|
Content-Transfer-Encoding:7bit |
||||||
|
From:SSL Certificate Renewal Script<$MAIL_FROM> |
||||||
|
To:<$MAIL_RCPT> |
||||||
|
Subject: New Certificate Deployed - $TODAYS_DATE |
||||||
|
|
||||||
|
<html> |
||||||
|
<p>A new certificate for the domain, <b>${DOMAIN}</b>, has been deployed.</p> |
||||||
|
<p>Please confirm certificate is working as expected.</p> |
||||||
|
</html> |
||||||
|
EOF |
||||||
|
) |
||||||
|
IFS=' |
||||||
|
' |
||||||
|
|
||||||
|
if [ "${MAIL_METHOD}" == "SENDMAIL" ]; then |
||||||
|
# send notification email |
||||||
|
cat << EOF | /usr/sbin/sendmail -t -f $MAIL_FROM |
||||||
|
$MSG_CONTENT |
||||||
|
EOF |
||||||
|
else |
||||||
|
# prepare notification email message |
||||||
|
a=$(cat << EOF |
||||||
|
HELO $SMTP_DOMAIN |
||||||
|
MAIL FROM: <$MAIL_FROM> |
||||||
|
RCPT TO: <$MAIL_RCPT> |
||||||
|
DATA |
||||||
|
$MSG_CONTENT |
||||||
|
. |
||||||
|
QUIT |
||||||
|
. |
||||||
|
EOF |
||||||
|
) |
||||||
|
IFS=' |
||||||
|
' |
||||||
|
|
||||||
|
# send notification email |
||||||
|
exec 1<>/dev/tcp/$SMTP_SERVER/$SMTP_PORT |
||||||
|
declare -a b=($a) |
||||||
|
for x in "${b[@]}" |
||||||
|
do |
||||||
|
echo $x |
||||||
|
sleep .1 |
||||||
|
done |
||||||
|
fi |
||||||
|
} |
||||||
|
|
||||||
|
# load config values |
||||||
|
load_config |
||||||
|
|
||||||
|
CURL="curl ${CURL_OPTS} -s" |
||||||
|
if [[ "${DEBUG}" == "yes" ]]; then |
||||||
|
CURL="$CURL -v" |
||||||
|
fi |
||||||
|
|
||||||
|
HANDLER="$1"; shift |
||||||
|
if [[ "${HANDLER}" =~ ^(deploy_challenge|clean_challenge|deploy_cert|unchanged_cert|invalid_challenge|request_failure|startup_hook|exit_hook)$ ]]; then |
||||||
|
"$HANDLER" "$@" |
||||||
|
fi |
||||||
|
exit $? |
||||||
Loading…
Reference in new issue