#!/usr/bin/env bash

# Prowler - the handy cloud security tool (copyright 2019) 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_extra758="7.58"
CHECK_TITLE_extra758="[extra758] Check EC2 Instances older than 12 months (Not Scored) (Not part of CIS benchmark)"
CHECK_SCORED_extra758="NOT_SCORED"
CHECK_TYPE_extra758="EXTRA"
CHECK_ALTERNATE_check758="extra758"

extra758(){
  OLDAGE="$(get_date_previous_than_months 12)"
  textInfo "Looking for EC2 instances in all regions..."
  for regx in $REGIONS; do
    EC2_RUNNING="$($AWSCLI ec2 describe-instances --query "Reservations[*].Instances[*].[InstanceId]" $PROFILE_OPT --region $regx --output text)"
    if [[ $EC2_RUNNING ]]; then
      INSTACES_OLD_THAN_AGE=$($AWSCLI ec2 describe-instances --query "Reservations[].Instances[?LaunchTime<='$OLDAGE'][].{id: InstanceId, launched: LaunchTime}" $PROFILE_OPT --region $regx --output text)
      if [[ $INSTACES_OLD_THAN_AGE ]]; then
        while IFS= read -r ec2_instace
        do
          EC2_ID=$(echo "$ec2_instace" | awk '{print $1}')
          LAUNCH_DATE=$(echo "$ec2_instace" | awk '{print $2}')
          textFail "$regx: EC2 Instance $EC2_ID running before than $OLDAGE"
        done <<< "$INSTACES_OLD_THAN_AGE"
      else
        textPass "All Instances newer than 12 months"
      fi
    else
      textInfo "No EC2 Instances Found"
    fi
  done
}