#!/usr/bin/env bash

# Prowler - the handy cloud security tool (copyright 2018) 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_extra727="7.27"
CHECK_TITLE_extra727="[extra727] Check if SQS queues have policy set as Public (Not Scored) (Not part of CIS benchmark)"
CHECK_SCORED_extra727="NOT_SCORED"
CHECK_TYPE_extra727="EXTRA"
CHECK_ALTERNATE_check727="extra727"

extra727(){
  for regx in $REGIONS; do
    LIST_SQS=$($AWSCLI sqs list-queues $PROFILE_OPT --region $regx --query QueueUrls --output text |grep -v ^None)
    if [[ $LIST_SQS ]]; then
      for queue in $LIST_SQS; do
        # check if the policy has Principal as *
        SQS_TO_CHECK=$($AWSCLI sqs get-queue-attributes --queue-url $queue $PROFILE_OPT --region $regx --attribute-names All --query Attributes.Policy --output text | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' | awk '/Principal/ || /Condition/ && !skip { print } { skip = /Deny/} ')
        PUBLIC_SQS_WCONDITION=$(echo $SQS_TO_CHECK|grep Condition)
        if [[ $PUBLIC_SQS_WCONDITION ]]; then 
          textInfo "$regx: SQS queue $queue has a Condition" "$regx"
        else
          PUBLIC_SQS=$(echo $SQS_TO_CHECK|grep \"Principal|grep \*)
          if [[ $PUBLIC_SQS ]]; then
            textFail "$regx: SQS queue $queue seems to be public (Principal: \"*\")" "$regx"
          else
            textInfo "$regx: SQS queue $queue seems correct" "$regx"
          fi
        fi
      done
    else
      textInfo "$regx: No SQS queues found" "$regx"
    fi
  done
}