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dns_acmeproxy.sh
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dns_acmeproxy.sh
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#!/usr/bin/env sh
# shellcheck disable=SC2034
dns_acmeproxy_info='AcmeProxy Server API
AcmeProxy can be used to as a single host in your network to request certificates through a DNS API.
Clients can connect with the one AcmeProxy host so you do not need to store DNS API credentials on every single host.
Site: github.com/mdbraber/acmeproxy
Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_acmeproxy
Options:
ACMEPROXY_ENDPOINT API Endpoint
ACMEPROXY_USERNAME Username
ACMEPROXY_PASSWORD Password
Issues: github.com/acmesh-official/acme.sh/issues/2251
Author: Maarten den Braber
'
dns_acmeproxy_add() {
fulldomain="${1}"
txtvalue="${2}"
action="present"
_debug "Calling: _acmeproxy_request() '${fulldomain}' '${txtvalue}' '${action}'"
_acmeproxy_request "$fulldomain" "$txtvalue" "$action"
}
dns_acmeproxy_rm() {
fulldomain="${1}"
txtvalue="${2}"
action="cleanup"
_debug "Calling: _acmeproxy_request() '${fulldomain}' '${txtvalue}' '${action}'"
_acmeproxy_request "$fulldomain" "$txtvalue" "$action"
}
_acmeproxy_request() {
## Nothing to see here, just some housekeeping
fulldomain=$1
txtvalue=$2
action=$3
_info "Using acmeproxy"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
ACMEPROXY_ENDPOINT="${ACMEPROXY_ENDPOINT:-$(_readaccountconf_mutable ACMEPROXY_ENDPOINT)}"
ACMEPROXY_USERNAME="${ACMEPROXY_USERNAME:-$(_readaccountconf_mutable ACMEPROXY_USERNAME)}"
ACMEPROXY_PASSWORD="${ACMEPROXY_PASSWORD:-$(_readaccountconf_mutable ACMEPROXY_PASSWORD)}"
## Check for the endpoint
if [ -z "$ACMEPROXY_ENDPOINT" ]; then
ACMEPROXY_ENDPOINT=""
_err "You didn't specify the endpoint"
_err "Please set them via 'export ACMEPROXY_ENDPOINT=https://ip:port' and try again."
return 1
fi
## Save the credentials to the account file
_saveaccountconf_mutable ACMEPROXY_ENDPOINT "$ACMEPROXY_ENDPOINT"
_saveaccountconf_mutable ACMEPROXY_USERNAME "$ACMEPROXY_USERNAME"
_saveaccountconf_mutable ACMEPROXY_PASSWORD "$ACMEPROXY_PASSWORD"
if [ -z "$ACMEPROXY_USERNAME" ] || [ -z "$ACMEPROXY_PASSWORD" ]; then
_info "ACMEPROXY_USERNAME and/or ACMEPROXY_PASSWORD not set - using without client authentication! Make sure you're using server authentication (e.g. IP-based)"
export _H1="Accept: application/json"
export _H2="Content-Type: application/json"
else
## Base64 encode the credentials
credentials=$(printf "%b" "$ACMEPROXY_USERNAME:$ACMEPROXY_PASSWORD" | _base64)
## Construct the HTTP Authorization header
export _H1="Authorization: Basic $credentials"
export _H2="Accept: application/json"
export _H3="Content-Type: application/json"
fi
## Add the challenge record to the acmeproxy grid member
response="$(_post "{\"fqdn\": \"$fulldomain.\", \"value\": \"$txtvalue\"}" "$ACMEPROXY_ENDPOINT/$action" "" "POST")"
## Let's see if we get something intelligible back from the unit
if echo "$response" | grep "\"$txtvalue\"" >/dev/null; then
_info "Successfully updated the txt record"
return 0
else
_err "Error encountered during record addition"
_err "$response"
return 1
fi
}
#################### Private functions below ##################################