def __init__()

in functions/source/populate_NLB_TG_with_ALB/dns/resolver.py [0:0]

• 53 lines of code
• 22 McCabe index (conditional complexity)

    def __init__(self, qname, rdtype, rdclass, response,
                 raise_on_no_answer=True):
        self.qname = qname
        self.rdtype = rdtype
        self.rdclass = rdclass
        self.response = response
        min_ttl = -1
        rrset = None
        for count in xrange(0, 15):
            try:
                rrset = response.find_rrset(response.answer, qname,
                                            rdclass, rdtype)
                if min_ttl == -1 or rrset.ttl < min_ttl:
                    min_ttl = rrset.ttl
                break
            except KeyError:
                if rdtype != dns.rdatatype.CNAME:
                    try:
                        crrset = response.find_rrset(response.answer,
                                                     qname,
                                                     rdclass,
                                                     dns.rdatatype.CNAME)
                        if min_ttl == -1 or crrset.ttl < min_ttl:
                            min_ttl = crrset.ttl
                        for rd in crrset:
                            qname = rd.target
                            break
                        continue
                    except KeyError:
                        if raise_on_no_answer:
                            raise NoAnswer(response=response)
                if raise_on_no_answer:
                    raise NoAnswer(response=response)
        if rrset is None and raise_on_no_answer:
            raise NoAnswer(response=response)
        self.canonical_name = qname
        self.rrset = rrset
        if rrset is None:
            while 1:
                # Look for a SOA RR whose owner name is a superdomain
                # of qname.
                try:
                    srrset = response.find_rrset(response.authority, qname,
                                                 rdclass, dns.rdatatype.SOA)
                    if min_ttl == -1 or srrset.ttl < min_ttl:
                        min_ttl = srrset.ttl
                    if srrset[0].minimum < min_ttl:
                        min_ttl = srrset[0].minimum
                    break
                except KeyError:
                    try:
                        qname = qname.parent()
                    except dns.name.NoParent:
                        break
        self.expiration = time.time() + min_ttl