DNSzonefileManager

A Phyton library that provides methods for DNS zonefiles

Validate a zone file

Convert a zone file to json and convert it back to txt

How to use it

from zonefile import ParseZoneFile, GenerateZoneFile

zonefile = "mydomain.com"
fh = open(zonefile,"r")
zf = fh.read()
fh.close()

ZF = ParseZoneFile(zf)
print ("This is the original")
print(ZF.showinput())
print ("--------------------------------------------")

print ("Check it it is valid")
ret, rerr = ZF.validate()
if not ret:
    Print("There is an error in this file!")
    print(rerr)
print ("--------------------------------------------")


print ("This is the zonefile in json (formatted)")
print(ZF.showjson(True))

print ("This is the zonefile in json")
jsonfile = ZF.showjson()


print ("Convert the json back to txt")
out = GenerateZoneFile(jsonfile)
print(out.showtext()) 
print ("--------------------------------------------")

Limitations

Only specific recorod keys are accepted. Not supported record keys will be omitted from output.

supported record types are:

• $ORIGIN
• $TTL
• SOA
• NS
• A
• AAAA
• HINFO
• CNAME
• MX
• PTR
• TXT
• SRV
• URI

To do

• Disable logfile
• Determine logfile name
• Remove IgnoredLines parameter
• Implemt DNSSEC, DNSKEY, DS records

Important RFC's

• RFC 1035 - Domain Names
• RFC 1912 - Common DNS Operational and Configuration Errors