Google IPs (#1)

* rename

* Add google ip downloader

google/downloader.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# https://cloud.google.com/compute/docs/faq#find_ip_range
+# From: https://github.com/pierrocknroll/googlecloud-iprange/blob/master/list.sh
+# From: https://gist.github.com/jeffmccune/e7d635116f25bc7e12b2a19efbafcdf8
+
+set -euo pipefail
+set -x
+
+
+# get from public ranges
+curl -s https://www.gstatic.com/ipranges/goog.txt > /tmp/goog.txt
+curl -s https://www.gstatic.com/ipranges/cloud.json > /tmp/cloud.json
+
+# get from netblocks
+txt="$(dig TXT _netblocks.google.com +short @8.8.8.8)"
+idx=2
+while [[ -n "${txt}" ]]; do
+  echo "${txt}" | tr '[:space:]+' "\n" | grep ':' | cut -d: -f2- >> /tmp/netblocks.txt
+  txt="$(dig TXT _netblocks${idx}.google.com +short @8.8.8.8)"
+  ((idx++))
+done
+
+
+# save ipv4
+grep -v ':' /tmp/goog.txt > /tmp/google-ipv4.txt
+jq '.prefixes[] | [.ipv4Prefix][] | select(. != null)' -r /tmp/cloud.json >> /tmp/google-ipv4.txt
+grep -v ':' /tmp/netblocks.txt >> /tmp/google-ipv4.txt
+
+# save ipv6
+grep ':' /tmp/goog.txt > /tmp/google-ipv6.txt
+jq '.prefixes[] | [.ipv6Prefix][] | select(. != null)' -r /tmp/cloud.json >> /tmp/google-ipv6.txt
+grep ':' /tmp/netblocks.txt >> /tmp/google-ipv6.txt
+
+
+# sort & uniq
+sort -hu /tmp/google-ipv4.txt > google/ipv4.txt
+sort -hu /tmp/google-ipv6.txt > google/ipv6.txt