def getcached(self, name, rtype = proto.QTANY):
self.cachelock.acquire()
try:
if name not in self.cache:
return []
now = int(time.time())
if isinstance(self.cache[name], nxdmark):
if self.cache[name].expire < now:
self.cache[name] = []
return []
return self.cache[name]
ret = []
if rtype == proto.QTANY:
cond = lambda rt: True
elif type(rtype) == int:
cond = lambda rt: rtype == rt
elif type(rtype) == str:
rtid = rec.rtypebyname(rtype)
cond = lambda rt: rtid == rt
else:
rtset = set([((type(rtid) == str) and rec.rtypebyname(rtid)) or rtid for rtid in rtype])
cond = lambda rt: rt in rtset
for exp, trd, data, auth in self.cache[name]:
if exp > now and cond(trd):
ret += [(rec.rr((name, trd), exp - now, data), auth)]
return ret
finally:
self.cachelock.release()
def rmrtype(self, name, rtype):
if type(rtype) == str:
rtype = rec.rtypebyname(rtype)
rrset = self.lookup(name)
if rrset is None:
return False
for rr in rrset:
if rr.head.rtype == rtype:
rrset.remove(rr)
self.set(name, rrset)
return True
def resolvecnames(pkt, res = None):
if res is None: res = default
for q in pkt.qlist:
cnrr = pkt.getanswer(q.name, rec.rtypebyname("CNAME"))
if cnrr is not None:
if pkt.getanswer(cnrr.data["priname"], q.rtype) is None:
try:
resp = res.squery(cnrr.data["priname"], q.rtype)
except error:
continue
if resp is None:
continue
anrr = resp.getanswer(cnrr.data["priname"], q.rtype)
if anrr is None:
continue
pkt.addan(anrr)
