#!/usr/bin/env bash

# Prowler - the handy cloud security tool (copyright 2020) by Toni de la Fuente
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy
# of the License at http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed
# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, either express or implied. See the License for the
# specific language governing permissions and limitations under the License.
CHECK_ID_extra785="7.85"
CHECK_TITLE_extra785="[extra785] Check if Amazon Elasticsearch Service (ES) domains have updates available"
CHECK_SCORED_extra785="NOT_SCORED"
CHECK_TYPE_extra785="EXTRA"
CHECK_SEVERITY_extra785="Low"
CHECK_ASFF_RESOURCE_TYPE_extra785="AwsElasticsearchDomain"
CHECK_ALTERNATE_check785="extra785"
CHECK_SERVICENAME_extra785="es"

# NOTE!
# API does not properly shows if an update is available while it is a new version available
# that can be done using the Console but not the API, not sure if it is a bug
# I have to investigate further

extra785(){
  for regx in $REGIONS; do
    LIST_OF_DOMAINS=$($AWSCLI es list-domain-names $PROFILE_OPT --region $regx --query DomainNames --output text)
    if [[ $LIST_OF_DOMAINS ]]; then
      for domain in $LIST_OF_DOMAINS;do
        CHECK_IF_UPDATE_AVAILABLE_AND_VERSION=$($AWSCLI es describe-elasticsearch-domain --domain-name $domain $PROFILE_OPT --region $regx --query 'DomainStatus.[ServiceSoftwareOptions.UpdateAvailable,ElasticsearchVersion]' --output text)
        while read update_status es_version;do
          if [[ $update_status != "False" ]];then
            textInfo "$regx: Amazon ES domain $domain v$es_version has updates available" "$regx"
          else
            textPass "$regx: Amazon ES domain $domain v$es_version does not have have updates available" "$regx"
          fi
        done < <(echo $CHECK_IF_UPDATE_AVAILABLE_AND_VERSION)
      done
    else
      textInfo "$regx: No Amazon ES domain found" "$regx"
    fi
  done
}