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Merge pull request #3460 from JaZo/feature/aurora
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Add Aurora DNS API
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Neilpang authored Apr 17, 2021
2 parents f3682f0 + 1c58913 commit c576af7
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171 changes: 171 additions & 0 deletions dnsapi/dns_aurora.sh
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#!/usr/bin/env sh

#
#AURORA_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
#
#AURORA_Secret="sdfsdfsdfljlbjkljlkjsdfoiwje"

AURORA_Api="https://api.auroradns.eu"

######## Public functions #####################

#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_aurora_add() {
fulldomain=$1
txtvalue=$2

AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"

if [ -z "$AURORA_Key" ] || [ -z "$AURORA_Secret" ]; then
AURORA_Key=""
AURORA_Secret=""
_err "You didn't specify an Aurora api key and secret yet."
_err "You can get yours from here https://cp.pcextreme.nl/auroradns/users."
return 1
fi

#save the api key and secret to the account conf file.
_saveaccountconf_mutable AURORA_Key "$AURORA_Key"
_saveaccountconf_mutable AURORA_Secret "$AURORA_Secret"

_debug "First detect the root zone"
if ! _get_root "$fulldomain"; then
_err "invalid domain"
return 1
fi
_debug _domain_id "$_domain_id"
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"

_info "Adding record"
if _aurora_rest POST "zones/$_domain_id/records" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":300}"; then
if _contains "$response" "$txtvalue"; then
_info "Added, OK"
return 0
elif _contains "$response" "RecordExistsError"; then
_info "Already exists, OK"
return 0
else
_err "Add txt record error."
return 1
fi
fi
_err "Add txt record error."
return 1

}

#fulldomain txtvalue
dns_aurora_rm() {
fulldomain=$1
txtvalue=$2

AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"

_debug "First detect the root zone"
if ! _get_root "$fulldomain"; then
_err "invalid domain"
return 1
fi
_debug _domain_id "$_domain_id"
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"

_debug "Getting records"
_aurora_rest GET "zones/${_domain_id}/records"

if ! _contains "$response" "$txtvalue"; then
_info "Don't need to remove."
else
records=$(echo "$response" | _normalizeJson | tr -d "[]" | sed "s/},{/}|{/g" | tr "|" "\n")
if [ "$(echo "$records" | wc -l)" -le 2 ]; then
_err "Can not parse records."
return 1
fi
record_id=$(echo "$records" | grep "\"type\": *\"TXT\"" | grep "\"name\": *\"$_sub_domain\"" | grep "\"content\": *\"$txtvalue\"" | _egrep_o "\"id\": *\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
_debug "record_id" "$record_id"
if [ -z "$record_id" ]; then
_err "Can not get record id to remove."
return 1
fi
if ! _aurora_rest DELETE "zones/$_domain_id/records/$record_id"; then
_err "Delete record error."
return 1
fi
fi
return 0

}

#################### Private functions below ##################################
#_acme-challenge.www.domain.com
#returns
# _sub_domain=_acme-challenge.www
# _domain=domain.com
# _domain_id=sdjkglgdfewsdfg
_get_root() {
domain=$1
i=1
p=1

while true; do
h=$(printf "%s" "$domain" | cut -d . -f $i-100)
_debug h "$h"
if [ -z "$h" ]; then
#not valid
return 1
fi

if ! _aurora_rest GET "zones/$h"; then
return 1
fi

if _contains "$response" "\"name\": \"$h\""; then
_domain_id=$(echo "$response" | _normalizeJson | tr -d "{}" | tr "," "\n" | grep "\"id\": *\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
_debug _domain_id "$_domain_id"
if [ "$_domain_id" ]; then
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
_domain=$h
return 0
fi
return 1
fi
p=$i
i=$(_math "$i" + 1)
done
return 1
}

_aurora_rest() {
m=$1
ep="$2"
data="$3"
_debug "$ep"

key_trimmed=$(echo "$AURORA_Key" | tr -d '"')
secret_trimmed=$(echo "$AURORA_Secret" | tr -d '"')

timestamp=$(date -u +"%Y%m%dT%H%M%SZ")
signature=$(printf "%s/%s%s" "$m" "$ep" "$timestamp" | _hmac sha256 "$(printf "%s" "$secret_trimmed" | _hex_dump | tr -d " ")" | _base64)
authorization=$(printf "AuroraDNSv1 %s" "$(printf "%s:%s" "$key_trimmed" "$signature" | _base64)")

export _H1="Content-Type: application/json; charset=UTF-8"
export _H2="X-AuroraDNS-Date: $timestamp"
export _H3="Authorization: $authorization"

if [ "$m" != "GET" ]; then
_debug data "$data"
response="$(_post "$data" "$AURORA_Api/$ep" "" "$m")"
else
response="$(_get "$AURORA_Api/$ep")"
fi

if [ "$?" != "0" ]; then
_err "error $ep"
return 1
fi
_debug2 response "$response"
return 0
}

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