diff options
Diffstat (limited to 'lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/resolve.py')
-rwxr-xr-x | lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/resolve.py | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/resolve.py b/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/resolve.py deleted file mode 100755 index 19996e93..00000000 --- a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/resolve.py +++ /dev/null @@ -1,59 +0,0 @@ -# Copyright (c) Twisted Matrix Laboratories. -# See LICENSE for details. - - -""" -Lookup a name using multiple resolvers. - -Future Plans: This needs someway to specify which resolver answered -the query, or someway to specify (authority|ttl|cache behavior|more?) - -@author: Jp Calderone -""" - -from twisted.internet import defer, interfaces -from twisted.names import dns -from zope.interface import implements -import common - -class FailureHandler: - def __init__(self, resolver, query, timeout): - self.resolver = resolver - self.query = query - self.timeout = timeout - - - def __call__(self, failure): - # AuthoritativeDomainErrors should halt resolution attempts - failure.trap(dns.DomainError, defer.TimeoutError, NotImplementedError) - return self.resolver(self.query, self.timeout) - - -class ResolverChain(common.ResolverBase): - """Lookup an address using multiple C{IResolver}s""" - - implements(interfaces.IResolver) - - - def __init__(self, resolvers): - common.ResolverBase.__init__(self) - self.resolvers = resolvers - - - def _lookup(self, name, cls, type, timeout): - q = dns.Query(name, type, cls) - d = self.resolvers[0].query(q, timeout) - for r in self.resolvers[1:]: - d = d.addErrback( - FailureHandler(r.query, q, timeout) - ) - return d - - - def lookupAllRecords(self, name, timeout = None): - d = self.resolvers[0].lookupAllRecords(name, timeout) - for r in self.resolvers[1:]: - d = d.addErrback( - FailureHandler(r.lookupAllRecords, name, timeout) - ) - return d |