Python netutil.Resolver方法代碼示例

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def __init__(self, io_loop, request):
        self.connect_future = TracebackFuture()
        self.read_future = None
        self.read_queue = collections.deque()
        self.key = base64.b64encode(os.urandom(16))

        scheme, sep, rest = request.url.partition(':')
        scheme = {'ws': 'http', 'wss': 'https'}[scheme]
        request.url = scheme + sep + rest
        request.headers.update({
            'Upgrade': 'websocket',
            'Connection': 'Upgrade',
            'Sec-WebSocket-Key': self.key,
            'Sec-WebSocket-Version': '13',
        })

        self.resolver = Resolver(io_loop=io_loop)
        super(WebSocketClientConnection, self).__init__(
            io_loop, None, request, lambda: None, self._on_http_response,
            104857600, self.resolver) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def raw_fetch(self, headers, body):
        with closing(Resolver(io_loop=self.io_loop)) as resolver:
            with closing(SimpleAsyncHTTPClient(self.io_loop,
                                               resolver=resolver)) as client:
                conn = RawRequestHTTPConnection(
                    self.io_loop, client,
                    httpclient._RequestProxy(
                        httpclient.HTTPRequest(self.get_url("/")),
                        dict(httpclient.HTTPRequest._DEFAULTS)),
                    None, self.stop,
                    1024 * 1024, resolver)
                conn.set_request(
                    b"\r\n".join(headers +
                                 [utf8("Content-Length: %d\r\n" % len(body))]) +
                    b"\r\n" + body)
                response = self.wait()
                response.rethrow()
                return response 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def initialize(self, io_loop=None):
        self.io_loop = io_loop or IOLoop.current()
        # partial copy of twisted.names.client.createResolver, which doesn't
        # allow for a reactor to be passed in.
        self.reactor = tornado.platform.twisted.TornadoReactor(io_loop)

        host_resolver = twisted.names.hosts.Resolver('/etc/hosts')
        cache_resolver = twisted.names.cache.CacheResolver(reactor=self.reactor)
        real_resolver = twisted.names.client.Resolver('/etc/resolv.conf',
                                                      reactor=self.reactor)
        self.resolver = twisted.names.resolve.ResolverChain(
            [host_resolver, cache_resolver, real_resolver]) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def __init__(self, resolver=None, io_loop=None):
        self.io_loop = io_loop or IOLoop.current()
        if resolver is not None:
            self.resolver = resolver
            self._own_resolver = False
        else:
            self.resolver = Resolver(io_loop=io_loop)
            self._own_resolver = True 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def setUp(self):
        # Dummy Resolver subclass that never invokes its callback.
        class BadResolver(Resolver):
            def resolve(self, *args, **kwargs):
                pass

        super(ResolveTimeoutTestCase, self).setUp()
        self.http_client = SimpleAsyncHTTPClient(
            self.io_loop,
            resolver=BadResolver()) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def main():
    args = parse_command_line()

    if not args:
        args = ['localhost', 'www.google.com',
                'www.facebook.com', 'www.dropbox.com']

    resolvers = [Resolver(), ThreadedResolver()]

    if twisted is not None:
        from tornado.platform.twisted import TwistedResolver
        resolvers.append(TwistedResolver())

    if pycares is not None:
        from tornado.platform.caresresolver import CaresResolver
        resolvers.append(CaresResolver())

    family = {
        'unspec': socket.AF_UNSPEC,
        'inet': socket.AF_INET,
        'inet6': socket.AF_INET6,
        }[options.family]

    for host in args:
        print('Resolving %s' % host)
        for resolver in resolvers:
            addrinfo = yield resolver.resolve(host, 80, family)
            print('%s: %s' % (resolver.__class__.__name__,
                              pprint.pformat(addrinfo)))
        print() 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def __init__(self, sock):
        self._iostream = IOStream(sock)
        self._resolver = Resolver()
        self._readtimeout = 0
        self._connecttimeout = 0
        self._rbuffer = StringIO(b'')
        self._rbuffer_size = 0 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def initialize(self) -> None:
        # partial copy of twisted.names.client.createResolver, which doesn't
        # allow for a reactor to be passed in.
        self.reactor = twisted.internet.asyncioreactor.AsyncioSelectorReactor()

        host_resolver = twisted.names.hosts.Resolver("/etc/hosts")
        cache_resolver = twisted.names.cache.CacheResolver(reactor=self.reactor)
        real_resolver = twisted.names.client.Resolver(
            "/etc/resolv.conf", reactor=self.reactor
        )
        self.resolver = twisted.names.resolve.ResolverChain(
            [host_resolver, cache_resolver, real_resolver]
        ) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def __init__(self, resolver: Resolver = None) -> None:
        if resolver is not None:
            self.resolver = resolver
            self._own_resolver = False
        else:
            self.resolver = Resolver()
            self._own_resolver = True 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def test_connect_timeout(self):
        timeout = 0.1

        cleanup_event = Event()
        test = self

        class TimeoutResolver(Resolver):
            async def resolve(self, *args, **kwargs):
                await cleanup_event.wait()
                # Return something valid so the test doesn't raise during shutdown.
                return [(socket.AF_INET, ("127.0.0.1", test.get_http_port()))]

        with closing(self.create_client(resolver=TimeoutResolver())) as client:
            with self.assertRaises(HTTPTimeoutError):
                yield client.fetch(
                    self.get_url("/hello"),
                    connect_timeout=timeout,
                    request_timeout=3600,
                    raise_error=True,
                )

        # Let the hanging coroutine clean up after itself. We need to
        # wait more than a single IOLoop iteration for the SSL case,
        # which logs errors on unexpected EOF.
        cleanup_event.set()
        yield gen.sleep(0.2) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def setUp(self):
        self.cleanup_event = Event()
        test = self

        # Dummy Resolver subclass that never finishes.
        class BadResolver(Resolver):
            @gen.coroutine
            def resolve(self, *args, **kwargs):
                yield test.cleanup_event.wait()
                # Return something valid so the test doesn't raise during cleanup.
                return [(socket.AF_INET, ("127.0.0.1", test.get_http_port()))]

        super(ResolveTimeoutTestCase, self).setUp()
        self.http_client = SimpleAsyncHTTPClient(resolver=BadResolver()) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def initialize(self, io_loop, max_clients=10,
                   hostname_mapping=None, max_buffer_size=104857600,
                   resolver=None, defaults=None):
        """Creates a AsyncHTTPClient.

        Only a single AsyncHTTPClient instance exists per IOLoop
        in order to provide limitations on the number of pending connections.
        force_instance=True may be used to suppress this behavior.

        max_clients is the number of concurrent requests that can be
        in progress.  Note that this arguments are only used when the
        client is first created, and will be ignored when an existing
        client is reused.

        hostname_mapping is a dictionary mapping hostnames to IP addresses.
        It can be used to make local DNS changes when modifying system-wide
        settings like /etc/hosts is not possible or desirable (e.g. in
        unittests).

        max_buffer_size is the number of bytes that can be read by IOStream. It
        defaults to 100mb.
        """
        super(SimpleAsyncHTTPClient, self).initialize(io_loop,
                                                      defaults=defaults)
        self.max_clients = max_clients
        self.queue = collections.deque()
        self.active = {}
        self.max_buffer_size = max_buffer_size
        if resolver:
            self.resolver = resolver
            self.own_resolver = False
        else:
            self.resolver = Resolver(io_loop=io_loop)
            self.own_resolver = True
        if hostname_mapping is not None:
            self.resolver = OverrideResolver(resolver=self.resolver,
                                             mapping=hostname_mapping) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def initialize(self):
        # partial copy of twisted.names.client.createResolver, which doesn't
        # allow for a reactor to be passed in.
        self.reactor = tornado.platform.twisted.TornadoReactor()

        host_resolver = twisted.names.hosts.Resolver('/etc/hosts')
        cache_resolver = twisted.names.cache.CacheResolver(reactor=self.reactor)
        real_resolver = twisted.names.client.Resolver('/etc/resolv.conf',
                                                      reactor=self.reactor)
        self.resolver = twisted.names.resolve.ResolverChain(
            [host_resolver, cache_resolver, real_resolver]) 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def __init__(self, resolver=None):
        if resolver is not None:
            self.resolver = resolver
            self._own_resolver = False
        else:
            self.resolver = Resolver()
            self._own_resolver = True 

# 需要導入模塊: from tornado import netutil [as 別名]
# 或者: from tornado.netutil import Resolver [as 別名]
def test_connect_timeout(self):
        timeout = 0.1

        class TimeoutResolver(Resolver):
            def resolve(self, *args, **kwargs):
                return Future()  # never completes

        with closing(self.create_client(resolver=TimeoutResolver())) as client:
            with self.assertRaises(HTTPTimeoutError):
                yield client.fetch(self.get_url('/hello'),
                                   connect_timeout=timeout,
                                   request_timeout=3600,
                                   raise_error=True)