#!/usr/bin/env bash

# Prowler - the handy cloud security tool (c) by Toni de la Fuente
#
# This Prowler check is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
#
# You should have received a copy of the license along with this
# work. If not, see <http://creativecommons.org/licenses/by-nc-sa/4.0/>.

CHECK_ID_check44="4.4"
CHECK_TITLE_check44="[check44] Ensure routing tables for VPC peering are \"least access\" (Not Scored)"
CHECK_SCORED_check44="NOT_SCORED"
CHECK_TYPE_check44="LEVEL2"
CHECK_SEVERITY_check44="Medium"
CHECK_ASFF_TYPE_check44="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark"
CHECK_ASFF_RESOURCE_TYPE_check44="AwsEc2Vpc"
CHECK_ALTERNATE_check404="check44"
CHECK_SERVICENAME_check44="vpc"

check44(){
  # "Ensure routing tables for VPC peering are \"least access\" (Not Scored)"
  textInfo "Looking for VPC peering in all regions...  "
  for regx in $REGIONS; do
    LIST_OF_VPCS_PEERING_CONNECTIONS=$($AWSCLI ec2 describe-vpc-peering-connections --output text $PROFILE_OPT --region $regx --query 'VpcPeeringConnections[*].VpcPeeringConnectionId'| sort | paste -s -d" " -)
    if [[ $LIST_OF_VPCS_PEERING_CONNECTIONS ]];then
      textInfo "$regx: $LIST_OF_VPCS_PEERING_CONNECTIONS - review routing tables" "$regx"
      #LIST_OF_VPCS=$($AWSCLI ec2 describe-vpcs $PROFILE_OPT --region $regx --query 'Vpcs[*].VpcId' --output text)
      #aws ec2 describe-route-tables --filter "Name=vpc-id,Values=vpc-0213e864" --query "RouteTables[*].{RouteTableId:RouteTableId, VpcId:VpcId, Routes:Routes, AssociatedSubnets:Associations[*].SubnetId}" $PROFILE_OPT --region $regx
      # for vpc in $LIST_OF_VPCS; do
      #   VPCS_WITH_PEERING=$($AWSCLI ec2 describe-route-tables --filter "Name=vpc-id,Values=$vpc" $PROFILE_OPT --region $regx --query "RouteTables[*].{RouteTableId:RouteTableId, VpcId:VpcId, Routes:Routes, AssociatedSubnets:Associations[*].SubnetId}" |grep GatewayId|grep pcx-)
      # done
      #echo $VPCS_WITH_PEERING
    else
      textPass "$regx: No VPC peering found" "$regx"
    fi
  done
}