Source Code for Module SPF.pydns

 1  import DNS    # http://pydns.sourceforge.net 
 2  import spf 
 3   
 4  if not hasattr(DNS.Type, 'SPF'): 
 5      # patch in type99 support 
 6      DNS.Type.SPF = 99 
 7      DNS.Type.typemap[99] = 'SPF' 
 8      DNS.Lib.RRunpacker.getSPFdata = DNS.Lib.RRunpacker.getTXTdata 
 9   
10 -def DNSLookup(name, qtype, strict=True): 
11      try: 
12          req = DNS.DnsRequest(name, qtype=qtype) 
13          resp = req.req() 
14          #resp.show() 
15          # key k: ('wayforward.net', 'A'), value v 
16          # FIXME: pydns returns AAAA RR as 16 byte binary string, but 
17          # A RR as dotted quad.  For consistency, this driver should 
18          # return both as binary string. 
19          return [((a['name'], a['typename']), a['data']) for a in resp.answers] 
20      except IOError, x: 
21          raise spf.TempError, 'DNS ' + str(x) 
22      except DNS.DNSError, x: 
23          raise spf.TempError, 'DNS ' + str(x) 
24   
25  DNS.DiscoverNameServers() # Fails on Mac OS X? Add domain to /etc/resolv.conf 
26   
27  spf.DNSLookup = DNSLookup 
28