add vultr api to dnsapi

dnsapi/dns_vultr.sh

@@ -0,0 +1,145 @@
+#!/usr/bin/env sh
+
+# Vultr API
+#
+# Usage:
+#   VULTR_API_KEY needs to be exported with your API key
+#
+# Recommendations:
+#   Vultr supports sub-accounts with limited privileges, and
+#   restricting which IPs can originate requests with a
+#   given api key - use both or either where you possibly can.
+#
+# Author: Terry Kerr <root@oefd.ca>
+# Report Bugs here: https://github.com/oefd/acme.sh
+
+########  Public functions #####################
+
+dns_vultr_add() {
+  fulldomain=$1
+  txtvalue=$2
+  _info "Using vultr api"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+
+  VULTR_API_KEY="${VULTR_API_KEY:-$(_readaccountconf_mutable VULTR_API_KEY)}"
+  if test -z "$VULTR_API_KEY"; then
+    VULTR_API_KEY=""
+    _err "VULTR_API_KEY was not exported"
+    return 1
+  fi
+  _saveaccountconf_mutable VULTR_API_KEY "$VULTR_API_KEY"
+
+  if ! _split_domain "$fulldomain"; then
+    return 1
+  fi
+
+  # add the TXT record
+  export _H1="Content-Type: application/x-www-form-urlencoded"
+  export _H2="Api-Key: $VULTR_API_KEY"
+  _endpoint="https://api.vultr.com/v1/dns/create_record"
+  _body="domain=$account_domain&name=$sub_domain&data=\"$txtvalue\"&type=TXT"
+  _response="$(_post "$_body" "$_endpoint")"
+  if test "$?" != "0"; then
+    _err "failed adding txt record: $_response"
+    return 1
+  fi
+  _debug2 _response "$_response"
+
+  return 0
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_vultr_rm() {
+  fulldomain=$1
+  txtvalue=$2
+  _info "Using vultr api"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+
+  VULTR_API_KEY="${VULTR_API_KEY:-$(_readaccountconf_mutable VULTR_API_KEY)}"
+  if test -z "$VULTR_API_KEY"; then
+    VULTR_API_KEY=""
+    _err "VULTR_API_KEY was not exported"
+    return 1
+  fi
+  _saveaccountconf_mutable VULTR_API_KEY "$VULTR_API_KEY"
+
+  if ! _split_domain "$fulldomain"; then
+    return 1
+  fi
+
+  # get domain records for domain
+  export _H1="Api-Key: $VULTR_API_KEY"
+  _endpoint="https://api.vultr.com/v1/dns/records?domain=$account_domain"
+  _response="$(_get "$_endpoint")"
+  if test "$?" != "0"; then
+    _err "failed getting domain records: $_response"
+    return 1
+  fi
+  _debug2 _records "$_response"
+
+  # grab TXT records (their whole JSON object), then filter them by those 
+  # with a name starting with _acme-challenge, then finally filter by the
+  # data being equal to $txtvalue.
+  _record="$(echo "$_response" | _egrep_o "{[^}]*\"type\"\\s*:\\s*\"TXT\"[^}]*}")"
+  _record="$(echo "$_record" | grep "\"name\"\\s*:\\s*\"_acme-challenge")"
+  _record="$(echo "$_record" | grep "\"data\"\\s*:\\W*$txtvalue")"
+  # take the RECORDID field of the relevant record and get the id value from it
+  _record_id="$(echo "$_record" | _egrep_o "\"RECORDID\"\\s*:\\s*[^,]+")"
+  _record_id="$(_getfield "$_record_id" 2 ':')"
+
+  # remove the txt record
+  export _H1="Content-Type: application/x-www-form-urlencoded"
+  export _H2="Api-Key: $VULTR_API_KEY"
+  _endpoint="https://api.vultr.com/v1/dns/delete_record"
+  _body="domain=$account_domain&RECORDID=$_record_id"
+  _response="$(_post "$_body" "$_endpoint")"
+  if test "$?" != "0"; then
+    _err "error deleting txt record: $_response"
+    return 1
+  fi
+  _debug2 _response "$_response"
+
+  return 0
+}
+
+####################  Private functions below ##################################
+
+# break the passed full domain into the sub domain part
+# which corrosponds to the record 'name' in vultr, and
+# the account domain which is the base domain vultr has
+# control of the DNS data for
+_split_domain() {
+  _domain="$1"
+
+  # get domains for this account
+  export _H1="Api-Key: $VULTR_API_KEY"
+  _endpoint="https://api.vultr.com/v1/dns/list"
+  _domain_list="$(_get "$_endpoint")"
+  if test "$?" != "0"; then
+    _err "error retrieving account domains: $_domain_list"
+    return 1
+  fi
+  _debug2 _domain_list "$_domain_list"
+
+  # match everything up to the first literal `.` and discard it
+  _cut_domain="s/^[^\\.]*\\.//"
+  # try each domain formed by stripping a subdomain, stripping
+  # before the check to cut the initial _acme-challenge. part
+  while _contains "$_domain" "\\."; do
+    _domain="$(echo "$_domain" | sed "$_cut_domain")"
+
+    if _contains "$_domain_list" "\"$_domain\""; then
+      account_domain="$_domain"
+      sub_domain="$(echo "$fulldomain" | sed "s/\\.$_domain\$//")"
+      _debug account_domain "$account_domain"
+      _debug sub_domain "$sub_domain"
+      return 0
+    fi
+  done
+
+  _err "No domain in vultr account for $1"
+  return 1
+}