#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2020-01-21 18:13:28 +0000 (Tue, 21 Jan 2020)
#
#  https://github.com/HariSekhon/DevOps-Bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# shellcheck disable=SC1090,SC1091
. "$srcdir/lib/aws.sh"

# shellcheck disable=SC2034,SC2154
usage_description="
Lists S3 buckets and their access logging status

Output Format:

S3_Bucket      TargetPrefix    TargetBucket

If access logging isn't configured on a bucket, outputs:

S3_Bucket      S3_ACCESS_LOGGING_NOT_CONFIGURED


$usage_aws_cli_required
"

# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args=""

help_usage "$@"


buckets="$(aws s3 ls | cut -d' ' -f3-)"

num_buckets="$(wc -l <<< "$buckets")"
num_buckets="${num_buckets//[[:space:]]}"

export AWS_DEFAULT_OUTPUT=json

echo "Fetching access logging status for each of $num_buckets buckets (this may take a while):" >&2
while read -r name; do
    printf '%s\t' "$name"
    output="$(aws s3api get-bucket-logging --bucket "$name" |
    jq -r '.LoggingEnabled | [.TargetPrefix, .TargetBucket] | @tsv')"
    if [ -z "$output" ]; then
        echo "S3_ACCESS_LOGGING_NOT_CONFIGURED"
    else
        echo "$output"
    fi
done <<< "$buckets" #|
#sort |
#column -t