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rDNS (in-addr.arpa.) support, convert to IPv4 #168

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rDNS (in-addr.arpa.) support, convert to IPv4 #168

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10 changes: 10 additions & 0 deletions winnower.py
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Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,10 @@ def is_fqdn(address):
return False


def rdns_to_ip(address):
return '.'.join(address.replace('.in-addr.arpa.', '').split('.')[::-1])


def winnow(in_file, out_file, enr_file):
config = ConfigParser.SafeConfigParser(allow_no_value=True)
cfg_success = config.read('combine.cfg')
Expand Down Expand Up @@ -167,6 +171,12 @@ def winnow(in_file, out_file, enr_file):
logger.info('Beginning winnowing process')
for each in crop:
(addr, addr_type, direction, source, note, date) = each

# handle rDNS as an IP, we don't know which DNS A rec it was so don't use PTR
if addr.endswith('.in-addr.arpa.'):
addr = rdns_to_ip(addr)
addr_type = 'IPv4'

# this should be refactored into appropriate functions
if addr_type == 'IPv4' and is_ipv4(addr):
#logger.info('Enriching %s' % addr)
Expand Down