1import requests
 2
 3class HostHeaderSSLAdapter(requests.adapters.HTTPAdapter):
 4    def resolve(self, hostname):
 5        import random
 6        ips = [
 7            '104.16.89.20',  # CloudFlare
 8            #'151.101.2.109',  # Fastly
 9        ]
10        resolutions = {
11            'overpost.biz': random.choice(ips),
12        }
13        return resolutions.get(hostname)
14
15    def send(self, request, **kwargs):
16        from urllib.parse import urlparse
17
18        connection_pool_kwargs = self.poolmanager.connection_pool_kw
19        result = urlparse(request.url)
20        resolved_ip = self.resolve(result.hostname)
21
22        if result.scheme == 'https' and resolved_ip:
23            request.url = request.url.replace(
24                'https://' + result.hostname,
25                'https://' + resolved_ip,
26            )
27            connection_pool_kwargs['server_hostname'] = result.hostname  # SNI
28            connection_pool_kwargs['assert_hostname'] = result.hostname
29
30            # overwrite the host header
31            request.headers['Host'] = result.hostname
32        else:
33            # theses headers from a previous request may have been left
34            connection_pool_kwargs.pop('server_hostname', None)
35            connection_pool_kwargs.pop('assert_hostname', None)
36
37        return super(HostHeaderSSLAdapter, self).send(request, **kwargs)
38
39def get(url: str):
40    session = requests.Session()
41    session.mount('https://', HostHeaderSSLAdapter())
42    return session.get(url)