unbound-validate.py

#!/opt/local/bin/python
'''
 via @zap42

 dnssec-valid.py:  DNSSEC validation

 Authors: Zdenek Vasicek (vasicek AT fit.vutbr.cz)
          Marek Vavrusa  (xvavru00 AT stud.fit.vutbr.cz)

 Copyright (c) 2008. All rights reserved.

 This software is open source.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 
 Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.
 
 Redistributions in binary form must reproduce the above copyright notice,
 this list of conditions and the following disclaimer in the documentation
 and/or other materials provided with the distribution.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
'''
import os
import sys
#from unbound import ub_ctx,RR_TYPE_A,RR_CLASS_IN
import unbound

ctx = unbound.ub_ctx()
#ctx.resolvconf("/etc/resolv.conf")
ctx.resolvconf("/opt/dnssec-tools/etc/dnssec-tools/resolv.conf")

fw = open("dnssec-valid.txt","wb")
ctx.debugout(fw)
ctx.debuglevel(2)

if os.path.isfile("root-key"):
    ctx.add_ta_file("root-key") #read public keys for DNSSEC verificatio

#status, result = ctx.resolve("www.nic.cz", RR_TYPE_A, RR_CLASS_IN)
rr="RR_TYPE_" + str(sys.argv[1].upper())
if rr in dir(unbound):
	rr=getattr(unbound, rr)
	status, result = ctx.resolve(sys.argv[2], rr, unbound.RR_CLASS_IN)
else:
	print("Error. no such RR_TYPE: " + str(sys.argv[1]))
	exit 
print "Qname:", result.qname
print "Rcode: %d - %s" % (result.rcode,result.rcode2str[result.rcode])
print "Qtype:", result.qtype
if result.havedata:
	print "Result:", result.data.address_list
	print "Result:", result.data.domain_list
	print "Result:", result.data.mx_list
else:
	pass

if result.secure:
	print "Secure: Yes"
elif result.bogus:
	print "Secure: Bogus"
else:
	print "Secure: No"