def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
logging.debug("Host cached.")
return defer.succeed(address)
else:
logging.debug("Host not cached.")
return reactor.resolve(host)
python类resolve()的实例源码
def get_local_ip():
"""
Returns a deferred which will be called with a
2-uple (lan_flag, ip_address) :
- lan_flag:
- True if it's a local network (RFC1918)
- False if it's a WAN address
- ip_address is the actual ip address
@return: A deferred called with the above defined tuple
@rtype: L{twisted.internet.defer.Deferred}
"""
# first we try a connected udp socket, then via multicast
logging.debug("Resolving dns to get udp ip")
try:
ipaddr = yield reactor.resolve('A.ROOT-SERVERS.NET')
except:
pass
else:
udpprot = DatagramProtocol()
port = reactor.listenUDP(0, udpprot)
udpprot.transport.connect(ipaddr, 7)
localip = udpprot.transport.getHost().host
port.stopListening()
if is_bogus_ip(localip):
raise RuntimeError, "Invalid IP address returned"
else:
defer.returnValue((is_rfc1918_ip(localip), localip))
logging.debug("Multicast ping to retrieve local IP")
ipaddr = yield _discover_multicast()
defer.returnValue((is_rfc1918_ip(ipaddr), ipaddr))
def get_local_ip():
"""
Returns a deferred which will be called with a
2-uple (lan_flag, ip_address) :
- lan_flag:
- True if it's a local network (RFC1918)
- False if it's a WAN address
- ip_address is the actual ip address
@return: A deferred called with the above defined tuple
@rtype: L{twisted.internet.defer.Deferred}
"""
# first we try a connected udp socket, then via multicast
logging.debug("Resolving dns to get udp ip")
try:
ipaddr = yield reactor.resolve('A.ROOT-SERVERS.NET')
except:
pass
else:
udpprot = DatagramProtocol()
port = reactor.listenUDP(0, udpprot)
udpprot.transport.connect(ipaddr, 7)
localip = udpprot.transport.getHost().host
port.stopListening()
if is_bogus_ip(localip):
raise RuntimeError, "Invalid IP address returned"
else:
defer.returnValue((is_rfc1918_ip(localip), localip))
logging.debug("Multicast ping to retrieve local IP")
ipaddr = yield _discover_multicast()
defer.returnValue((is_rfc1918_ip(ipaddr), ipaddr))
def get_local_ip():
"""
Returns a deferred which will be called with a
2-uple (lan_flag, ip_address) :
- lan_flag:
- True if it's a local network (RFC1918)
- False if it's a WAN address
- ip_address is the actual ip address
@return: A deferred called with the above defined tuple
@rtype: L{twisted.internet.defer.Deferred}
"""
# first we try a connected udp socket, then via multicast
logging.debug("Resolving dns to get udp ip")
try:
ipaddr = yield reactor.resolve('A.ROOT-SERVERS.NET')
except:
pass
else:
udpprot = DatagramProtocol()
port = reactor.listenUDP(0, udpprot)
udpprot.transport.connect(ipaddr, 7)
localip = udpprot.transport.getHost().host
port.stopListening()
if is_bogus_ip(localip):
raise RuntimeError, "Invalid IP address returned"
else:
defer.returnValue((is_rfc1918_ip(localip), localip))
logging.debug("Multicast ping to retrieve local IP")
ipaddr = yield _discover_multicast()
defer.returnValue((is_rfc1918_ip(ipaddr), ipaddr))
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
log.debug("[ClientRequest] Host cached: {} {}".format(host, address))
return defer.succeed(address)
else:
return reactor.resolve(host)
def __init__(self, channel, queued, reactor=reactor):
Request.__init__(self, channel, queued)
self.reactor = reactor
self.urlMonitor = URLMonitor.getInstance()
self.hsts = URLMonitor.getInstance().hsts
self.cookieCleaner = CookieCleaner.getInstance()
self.dnsCache = DnsCache.getInstance()
#self.uniqueId = random.randint(0, 10000)
#Use are own DNS server instead of reactor.resolve()
self.customResolver = dns.resolver.Resolver()
self.customResolver.nameservers = ['127.0.0.1']
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
log.debug("[ClientRequest] Host cached: {} {}".format(host, address))
return defer.succeed(address)
else:
return reactor.resolve(host)
def __init__(self, channel, queued, reactor=reactor):
Request.__init__(self, channel, queued)
self.reactor = reactor
self.urlMonitor = URLMonitor.getInstance()
self.hsts = URLMonitor.getInstance().hsts
self.cookieCleaner = CookieCleaner.getInstance()
self.dnsCache = DnsCache.getInstance()
#self.uniqueId = random.randint(0, 10000)
#Use are own DNS server instead of reactor.resolve()
self.customResolver = dns.resolver.Resolver()
self.customResolver.nameservers = ['127.0.0.1']
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
logging.debug("Host cached.")
return defer.succeed(address)
else:
logging.debug("Host not cached.")
return reactor.resolve(host)
def testChildResolve(self):
# I've seen problems with reactor.run under gtk2reactor. Spawn a
# child which just does reactor.resolve after the reactor has
# started, fail if it does not complete in a timely fashion.
helperPath = os.path.abspath(self.mktemp())
with open(helperPath, 'w') as helperFile:
# Eeueuuggg
reactorName = reactor.__module__
helperFile.write(resolve_helper % {'reactor': reactorName})
env = os.environ.copy()
env['PYTHONPATH'] = os.pathsep.join(sys.path)
helperDeferred = Deferred()
helperProto = ChildResolveProtocol(helperDeferred)
reactor.spawnProcess(helperProto, sys.executable, ("python", "-u", helperPath), env)
def cbFinished(result):
(reason, output, error) = result
# If the output is "done 127.0.0.1\n" we don't really care what
# else happened.
output = b''.join(output)
if _PY3:
expected_output = (b'done 127.0.0.1' +
os.linesep.encode("ascii"))
else:
expected_output = b'done 127.0.0.1\n'
if output != expected_output:
self.fail((
"The child process failed to produce the desired results:\n"
" Reason for termination was: %r\n"
" Output stream was: %r\n"
" Error stream was: %r\n") % (reason.getErrorMessage(), output, b''.join(error)))
helperDeferred.addCallback(cbFinished)
return helperDeferred
def createClient(self):
"""Create a UDP connection to Riemann"""
server = self.config.get('server', '127.0.0.1')
port = self.config.get('port', 5555)
def connect(ip):
"""Connect to the IP address
"""
self.protocol = riemann.RiemannUDP(ip, port)
self.endpoint = reactor.listenUDP(0, self.protocol)
de = reactor.resolve(server)
de.addCallback(connect)
return de
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
log.debug("[ClientRequest] Host cached: {} {}".format(host, address))
return defer.succeed(address)
else:
return reactor.resolve(host)
def __init__(self, channel, queued, reactor=reactor):
Request.__init__(self, channel, queued)
self.reactor = reactor
self.urlMonitor = URLMonitor.getInstance()
self.hsts = URLMonitor.getInstance().hsts
self.cookieCleaner = CookieCleaner.getInstance()
self.dnsCache = DnsCache.getInstance()
#self.uniqueId = random.randint(0, 10000)
#Use are own DNS server instead of reactor.resolve()
self.customResolver = dns.resolver.Resolver()
self.customResolver.nameservers = ['127.0.0.1']
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
logging.debug("Host cached.")
return defer.succeed(address)
else:
logging.debug("Host not cached.")
return reactor.resolve(host)
def startProtocol(self):
reactor.resolve(self.host.address.value).addCallback(self.gotIP).addErrback(self.noIP)
def startProtocol(self):
reactor.resolve(self.host.address.value).addCallback(self.gotIP).addErrback(self.noIP)
def __init__(self, host):
self.clientFactory = SnarlNetworkProtocolClientFactory()
self.serverFactory = SnarlNetworkProtocolServerFactory()
if host.enable_outgoing.value:
reactor.resolve(host.address.value).addCallback(self.gotIP).addErrback(self.noIP)
if host.enable_incoming.value:
self.serverPort = reactor.listenTCP(SNP_TCP_PORT, self.serverFactory)
self.pending += 1
def __init__(self, host):
self.clientFactory = GNTPClientFactory(host)
self.serverFactory = GNTPServerFactory()
if host.enable_outgoing.value:
reactor.resolve(host.address.value).addCallback(self.gotIP).addErrback(self.noIP)
if host.enable_incoming.value:
self.serverPort = reactor.listenTCP(GNTP_TCP_PORT, self.serverFactory)
self.pending += 1
def resolveHost(self, host):
address = self.dnsCache.getCachedAddress(host)
if address != None:
log.debug("[ClientRequest] Host cached: {} {}".format(host, address))
return defer.succeed(address)
else:
return reactor.resolve(host)
def __init__(self, channel, queued, reactor=reactor):
Request.__init__(self, channel, queued)
self.reactor = reactor
self.urlMonitor = URLMonitor.getInstance()
self.hsts = URLMonitor.getInstance().hsts
self.cookieCleaner = CookieCleaner.getInstance()
self.dnsCache = DnsCache.getInstance()
#self.uniqueId = random.randint(0, 10000)
#Use are own DNS server instead of reactor.resolve()
self.customResolver = dns.resolver.Resolver()
self.customResolver.nameservers = ['127.0.0.1']
