add: Microsoft Azure Datacenter IP Ranges added including tool to

generate the JSON.

Fix #43

README.md

@@ -14,7 +14,8 @@ are available in one of the list. The list can be globally enabled or disabled i
 - [lists/empty-hashes](lists/empty-hashes) - hash values of empty files
 - [lists/google](lists/google) - known domains and hostnames from Google
 - [lists/ipv6-linklocal](ipv6-linklocal) - IPv6 link local prefix
-- [lists/microsoft](lists/microsoft) - known microsoft domains
+- [lists/microsoft](lists/microsoft) - known Microsoft domains
+- [lists/microsoft-azure](lists/microsoft-azure) - known Microsoft Azure Datacenter IP Ranges
 - [lists/microsoft-office365](lists/microsoft-office365) - known Office 365 URLs and IP address ranges
 - [lists/microsoft-office365-cn](lists/microsoft-office365-cn) - known Office 365 IP address ranges in China
 - [lists/multicast](lists/multicast) - known IPv4 multicast CIDR blocks

tools/generate-microsoft-azure.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import requests
+import xml.etree.ElementTree as ET
+import json
+import datetime
+
+url = 'https://download.microsoft.com/download/0/1/8/018E208D-54F8-44CD-AA26-CD7BC9524A8C/PublicIPs_20171226.xml'
+r = requests.get(url)
+office365 = ET.fromstring(r.text)
+l = []
+for region in office365.iter('Region'):
+    for subnet in region.iter('IpRange'):
+        l.append(subnet.get('Subnet'))
+
+warninglist = {}
+warninglist['name'] = 'List of known Microsoft Azure Datacenter IP Ranges'
+warninglist['version'] = int(datetime.date.today().strftime('%Y%m%d'))
+warninglist['description'] = 'Microsoft Azure Datacenter IP Ranges'
+warninglist['list'] = sorted(set(l))
+warninglist['matching_attributes'] = ["ip-src", "ip-dst", "domain|ip"]
+warninglist['type'] = 'cidr'
+
+print(json.dumps(warninglist))