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atlassian_cidr_ranges.sh
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atlassian_cidr_ranges.sh
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#!/usr/bin/env bash
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2020-07-24 16:18:10 +0100 (Fri, 24 Jul 2020)
#
# https://github.com/harisekhon/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
. "$srcdir/lib/utils.sh"
# shellcheck disable=SC2034,SC2154
usage_description="
Fetches and parses Atlassian's IP ranges API, outputting the CIDR ranges, one per line"
# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args="[--ipv4 / --ipv6]"
# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_switches="
--ipv4 Output only IPv4 CIDR ranges
--ipv6 Output only IPv6 CIDR ranges
"
help_usage "$@"
for arg; do
case "$arg" in
--ipv4) IPV4_ONLY=1
;;
--ipv6) IPV6_ONLY=1
;;
esac
done
if [ -n "${IPV4_ONLY:-}" ] &&
[ -n "${IPV6_ONLY:-}" ]; then
usage "IPv4 and IPv6 filters are mutually exclusive"
fi
url="https://ip-ranges.atlassian.com/"
curl -sSL "$url" |
#jq -r '.items[] | [.network, .mask_len | tostring ] | join("/")'
jq -r '.items[] | .cidr' |
if [ -n "${IPV4_ONLY:-}" ]; then
grep -v -e '[:alpha:]' -e ':'
elif [ -n "${IPV6_ONLY:-}" ]; then
grep -e '[:alpha:]' -e ':'
else
cat
fi