netblocks 0.0.11

Get the Cloud Provider netblocks

Netblocks

This is not an official Google product.

This module retrieves the DNS entries recursively as per the below links

The GCE ranges
    https://cloud.google.com/compute/docs/faq#where_can_i_find_product_name_short_ip_ranges
The Google Services ranges
    https://support.google.com/a/answer/60764
The AWS ranges
    https://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html

Install the package with pip install netblocks or pip install git+https://github.com/hm-distro/netblocks/

The fetch() method has the default parameter value of initial_dns_list=[GOOGLE_INITIAL_CLOUD_NETBLOCK_DNS, GOOGLE_INITIAL_SPF_NETBLOCK_DNS]

where

#The GCE ranges
GOOGLE_INITIAL_CLOUD_NETBLOCK_DNS = "_cloud-netblocks.googleusercontent.com"

#The Google Services ranges
GOOGLE_INITIAL_SPF_NETBLOCK_DNS= "_spf.google.com"

#The AWS ranges
AWS_IP_RANGES="https://ip-ranges.amazonaws.com/ip-ranges.json"

See here on how to use this module in Google App Engine

API Usage

import netblocks
cidr_blocks = set()
api = netblocks.NetBlocks()
try:
    # returns both GOOGLE_INITIAL_CLOUD_NETBLOCK_DNS and GOOGLE_INITIAL_SPF_NETBLOCK_DNS
    cidr_blocks = api.fetch()
    
    # To get only the SPF list use the below:
    #  cidr_blocks = api.fetch([netblocks.GOOGLE_INITIAL_SPF_NETBLOCK_DNS])

    
    # To get only the GCE list use the below:
    #  cidr_blocks = api.fetch([netblocks.GOOGLE_INITIAL_CLOUD_NETBLOCK_DNS]) 
    
    # To get only the AWS list use the below:
    #  cidr_blocks = api.fetch([netblocks.AWS_IP_RANGES]) 
    
    """
    The cidr_blocks set contains strings like the below
    ip4:146.148.2.0/23
    ...
    ip6:2600:1900::/35
    """
    
except netblocks.NetBlockRetrievalException as err:
    #exception handling
    pass

Language

• Python

Dependencies

requests

License

Apache 2.0; see LICENSE for details.