#!/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_extra783="7.83"
CHECK_TITLE_extra783="[extra783] Check if Amazon Elasticsearch Service (ES) domains has enforce HTTPS enabled"
CHECK_SCORED_extra783="NOT_SCORED"
CHECK_CIS_LEVEL_extra783="EXTRA"
CHECK_SEVERITY_extra783="Medium"
CHECK_ASFF_RESOURCE_TYPE_extra783="AwsElasticsearchDomain"
CHECK_ALTERNATE_check783="extra783"
CHECK_SERVICENAME_extra783="es"
CHECK_RISK_extra783='If not enable unauthorized access to your data could risk increases.'
CHECK_REMEDIATION_extra783='When creating ES Domains; enable "Require HTTPS fo all traffic to the domain".'
CHECK_DOC_extra783='https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-createupdatedomains.html'
CHECK_CAF_EPIC_extra783='Data Protection'

extra783(){
  for regx in $REGIONS; do
    LIST_OF_DOMAINS=$($AWSCLI es list-domain-names $PROFILE_OPT --region $regx --query 'DomainNames[].DomainName' --output text 2>&1)
    if [[ $(echo "$LIST_OF_DOMAINS" | grep -E 'AccessDenied|UnauthorizedOperation|AuthorizationError') ]]; then
        textInfo "$regx: Access Denied trying to list domain names" "$regx"
        continue
    fi
    if [[ $LIST_OF_DOMAINS ]]; then
      for domain in $LIST_OF_DOMAINS;do
        CHECK_IF_ENFORCEHTTPS_ENABLED=$($AWSCLI es describe-elasticsearch-domain --domain-name $domain $PROFILE_OPT --region $regx --query 'DomainStatus.DomainEndpointOptions.EnforceHTTPS' --output text 2>&1)
        if [[ $(echo "$CHECK_IF_ENFORCEHTTPS_ENABLED" | grep -E 'AccessDenied|UnauthorizedOperation|AuthorizationError') ]]; then
            textInfo "$regx: Access Denied trying to get ES domain $domain" "$regx"
            continue
        fi
        if [[ $(echo "$CHECK_IF_ENFORCEHTTPS_ENABLED" | grep -i true) ]];then
          textPass "$regx: Amazon ES domain $domain has enforce HTTPS enabled" "$regx" "$domain"
        else
          textFail "$regx: Amazon ES domain $domain does not have enforce HTTPS enabled" "$regx" "$domain"
        fi
      done
    else
      textInfo "$regx: No Amazon ES domain found" "$regx"
    fi
  done
}