Mercurial > repos > shellac > guppy_basecaller
diff env/lib/python3.7/site-packages/requests_toolbelt/adapters/ssl.py @ 2:6af9afd405e9 draft
"planemo upload commit 0a63dd5f4d38a1f6944587f52a8cd79874177fc1"
author | shellac |
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date | Thu, 14 May 2020 14:56:58 -0400 |
parents | 26e78fe6e8c4 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.7/site-packages/requests_toolbelt/adapters/ssl.py Thu May 14 14:56:58 2020 -0400 @@ -0,0 +1,66 @@ +# -*- coding: utf-8 -*- +""" + +requests_toolbelt.ssl_adapter +============================= + +This file contains an implementation of the SSLAdapter originally demonstrated +in this blog post: +https://lukasa.co.uk/2013/01/Choosing_SSL_Version_In_Requests/ + +""" +import requests + +from requests.adapters import HTTPAdapter + +from .._compat import poolmanager + + +class SSLAdapter(HTTPAdapter): + """ + A HTTPS Adapter for Python Requests that allows the choice of the SSL/TLS + version negotiated by Requests. This can be used either to enforce the + choice of high-security TLS versions (where supported), or to work around + misbehaving servers that fail to correctly negotiate the default TLS + version being offered. + + Example usage: + + >>> import requests + >>> import ssl + >>> from requests_toolbelt import SSLAdapter + >>> s = requests.Session() + >>> s.mount('https://', SSLAdapter(ssl.PROTOCOL_TLSv1)) + + You can replace the chosen protocol with any that are available in the + default Python SSL module. All subsequent requests that match the adapter + prefix will use the chosen SSL version instead of the default. + + This adapter will also attempt to change the SSL/TLS version negotiated by + Requests when using a proxy. However, this may not always be possible: + prior to Requests v2.4.0 the adapter did not have access to the proxy setup + code. In earlier versions of Requests, this adapter will not function + properly when used with proxies. + """ + + __attrs__ = HTTPAdapter.__attrs__ + ['ssl_version'] + + def __init__(self, ssl_version=None, **kwargs): + self.ssl_version = ssl_version + + super(SSLAdapter, self).__init__(**kwargs) + + def init_poolmanager(self, connections, maxsize, block=False): + self.poolmanager = poolmanager.PoolManager( + num_pools=connections, + maxsize=maxsize, + block=block, + ssl_version=self.ssl_version) + + if requests.__build__ >= 0x020400: + # Earlier versions of requests either don't have this method or, worse, + # don't allow passing arbitrary keyword arguments. As a result, only + # conditionally define this method. + def proxy_manager_for(self, *args, **kwargs): + kwargs['ssl_version'] = self.ssl_version + return super(SSLAdapter, self).proxy_manager_for(*args, **kwargs)