#!/bin/sh

IPV4_LIST=./ips-v4
IPV6_LIST=./ips-v6
ASLIST=""

# Truncate
true > "$IPV4_LIST"
true > "$IPV6_LIST"

ASLIST="$ASLIST 32934"  # Facebook (Meta)
ASLIST="$ASLIST 16509"  # Amazon (AWS)
ASLIST="$ASLIST 15169"  # Google
ASLIST="$ASLIST 136907" # Huawei Cloud

for ASN in $ASLIST; do
	LIST="$(\
		curl -L \
			'https://stat.ripe.net/data/announced-prefixes/data.json?resource=AS'"$ASN" | \
		jq -r '.data.prefixes[].prefix')"

	# Cheap trick to separate IPs
	echo "$LIST" | grep '\.' >> "$IPV4_LIST"
	echo "$LIST" | grep -v '\.' >> "$IPV6_LIST"
done

# Sort from least specific to most
TMPFILE="$(mktemp -p /tmp)"
< "$IPV4_LIST" sort | uniq | sed 's;/;,;g' | xsv sort -s 2 -n | sed 's;,;/;g' > "$TMPFILE"
cp "$TMPFILE" "$IPV4_LIST"

< "$IPV6_LIST" sort | uniq | sed 's;/;,;g' | xsv sort -s 2 -n | sed 's;,;/;g' > "$TMPFILE"
cp "$TMPFILE" "$IPV6_LIST"
rm -v "$TMPFILE"