twisted.web.client.HostnameCachingHTTPSPolicy

class documentation

class HostnameCachingHTTPSPolicy: (source)

IPolicyForHTTPS that wraps a IPolicyForHTTPS and caches the created IOpenSSLClientConnectionCreator.

This policy will cache up to cacheSize client connection creators for reuse in subsequent requests to the same hostname.

Present Since
Twisted 19.2.0

Method	`__init__`
Method	`creatorForNetloc`	Create a `client connection creator` for a given network location and cache it for future use.
Instance Variable	`_cache`	A cache associating hostnames to their `client connection creators`.
Instance Variable	`_cacheSize`	See `cacheSize` parameter of `__init__`.
Instance Variable	`_policyForHTTPS`	See `policyforHTTPS` parameter of `__init__`.

def __init__(self, policyforHTTPS, cacheSize=20): (source)

Parameters
policyforHTTPS:`IPolicyForHTTPS`	The IPolicyForHTTPS to wrap.
cacheSize:`int`	The maximum size of the hostname cache.

def creatorForNetloc(self, hostname, port): (source)

from twisted.web.iweb.IPolicyForHTTPS

Create a client connection creator for a given network location and cache it for future use.

Parameters
hostname:`bytes`	The hostname part of the URI.
port:`int`	The port part of the URI.
Returns
`client connection creator`	a connection creator with appropriate verification restrictions set

_cache: collections.OrderedDict = (source)

A cache associating hostnames to their client connection creators.

_cacheSize = (source)

See cacheSize parameter of __init__.

_policyForHTTPS = (source)

See policyforHTTPS parameter of __init__.