Source Code for Module SPF.dnspython

 1  import dns.resolver  # http://www.dnspython.org 
 2  import dns.exception 
 3  import spf 
 4   
 5  if not hasattr(dns.rdatatype,'SPF'): 
 6    # patch in type99 support 
 7    dns.rdatatype.SPF = 99 
 8    dns.rdatatype._by_text['SPF'] = dns.rdatatype.SPF 
 9   
10 -def DNSLookup(name,qtype): 
11    retVal = [] 
12    try: 
13      answers = dns.resolver.query(name, qtype) 
14      for rdata in answers: 
15        if qtype == 'A' or qtype == 'AAAA': 
16          retVal.append(((name, qtype), rdata.address)) 
17        elif qtype == 'MX': 
18          retVal.append(((name, qtype), (rdata.preference, rdata.exchange))) 
19        elif qtype == 'PTR': 
20          retVal.append(((name, qtype), rdata.target.to_text(True))) 
21        elif qtype == 'TXT' or qtype == 'SPF': 
22          retVal.append(((name, qtype), rdata.strings)) 
23    except dns.resolver.NoAnswer: 
24      pass 
25    except dns.resolver.NXDOMAIN: 
26      pass 
27    except dns.exception.DNSException,x: 
28      raise spf.TempError,'DNS ' + str(x) 
29    return retVal 
30   
31  spf.DNSLookup = DNSLookup 
32