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Code Issues Releases Wiki Activity

Update dns blacklist checker

This commit is contained in:
github@kiekerjan.isdronken.nl 2021-09-03 20:18:30 +02:00
parent c4fa84b966
commit 36897b35ab
1 changed files with 13 additions and 13 deletions
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26
tools/check-dnsbl.py
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@ -1,6 +1,6 @@
#!/usr/bin/env python3
# From https://github.com/gsauthof/utility Thanks!
# 2016, Georg Sauthoff <mail@georg.so>, GPLv3+
import argparse
@ -189,7 +189,7 @@ def get_addrs(dest, mx=True):
domains = [ dest ]
if mx:
try:
r = dns.resolver.resolve(dest, 'mx')
r = dns.resolver.resolve(dest, 'mx', search=True)
domains = [ answer.exchange for answer in r ]
log.debug('destinatin {} has MXs: {}'
.format(dest, ', '.join([str(d) for d in domains])))
@ -199,7 +199,7 @@ def get_addrs(dest, mx=True):
for domain in domains:
for t in ['a', 'aaaa']:
try:
r = dns.resolver.resolve(domain, t)
r = dns.resolver.resolve(domain, t, search=True)
except dns.resolver.NoAnswer:
continue
xs = [ ( answer.address, domain ) for answer in r ]
@ -216,12 +216,12 @@ def check_dnsbl(addr, bl):
rev = dns.reversename.from_address(addr)
domain = str(rev.split(3)[0]) + '.' + bl
try:
r = dns.resolver.resolve(domain, 'a')
r = dns.resolver.resolve(domain, 'a', search=True)
except (dns.resolver.NXDOMAIN, dns.resolver.NoNameservers, dns.resolver.NoAnswer):
return 0
address = list(r)[0].address
try:
r = dns.resolver.resolve(domain, 'txt')
r = dns.resolver.resolve(domain, 'txt', search=True)
txt = list(r)[0].to_text()
except (dns.resolver.NoAnswer, dns.resolver.NXDOMAIN):
txt = ''
@ -237,7 +237,7 @@ def check_rdns(addrs):
log.debug('Check if there is a reverse DNS record that maps address {} to {}'
.format(addr, domain))
try:
r = dns.resolver.resolve(dns.reversename.from_address(addr), 'ptr')
r = dns.resolver.resolve(dns.reversename.from_address(addr), 'ptr', search=True)
a = list(r)[0]
target = str(a.target).lower()
source = str(domain).lower()
@ -316,7 +316,7 @@ if __name__ == '__main__':
#
## In[ ]:
#
#r = dns.resolver.resolve(dns.reversename.from_address('89.238.75.224'), 'ptr')
#r = dns.resolver.resolve(dns.reversename.from_address('89.238.75.224'), 'ptr', search=True)
#a = list(r)[0]
#a.target.to_text()
#
@ -360,7 +360,7 @@ if __name__ == '__main__':
## In[ ]:
#
## as of 2016-11, listed
#r = dns.resolver.resolve('39.227.103.116.zen.spamhaus.org', 'txt')
#r = dns.resolver.resolve('39.227.103.116.zen.spamhaus.org', 'txt', search=True)
#answer = list(r)[0]
#answer.to_text()
#
@ -388,7 +388,7 @@ if __name__ == '__main__':
#
## In[ ]:
#
#a = dns.resolver.resolve('georg.so', 'MX')
#a = dns.resolver.resolve('georg.so', 'MX', search=True)
#
#
## In[ ]:
@ -404,7 +404,7 @@ if __name__ == '__main__':
## In[ ]:
#
#[ x.exchange for x in a]
#dns.resolver.resolve(list(a)[0].exchange, 'a')
#dns.resolver.resolve(list(a)[0].exchange, 'a', search=True)
#
#
## In[ ]:
@ -416,14 +416,14 @@ if __name__ == '__main__':
## In[ ]:
#
## should throw NoAnswer
#a = dns.resolver.resolve('escher.lru.li', 'mx')
#a = dns.resolver.resolve('escher.lru.li', 'mx', search=True)
##b = list(a)
#a
#
#
## In[ ]:
#
#a = dns.resolver.resolve('georg.so', 'a')
#a = dns.resolver.resolve('georg.so', 'a', search=True)
#b = list(a)[0]
#b.address
#dns.reversename.from_address(b.address)
@ -433,7 +433,7 @@ if __name__ == '__main__':
#
## should throw NXDOMAIN
#rs = str(r.split(3)[0])
#dns.resolver.resolve(rs + '.zen.spamhaus.org', 'A' )
#dns.resolver.resolve(rs + '.zen.spamhaus.org', 'A' , search=True)
#
#
## In[ ]: