Files
addon/specials/resolverdns.py
2019-12-20 23:56:59 +01:00

78 lines
3.3 KiB
Python

# -*- coding: utf-8 -*-
import ssl
from requests_toolbelt.adapters import host_header_ssl
from lib import requests, doh
from platformcode import logger
import re
class CustomSocket(ssl.SSLSocket):
def __init__(self, *args, **kwargs):
super(CustomSocket, self).__init__(*args, **kwargs)
class CustomContext(ssl.SSLContext):
def __init__(self, protocol, hostname, *args, **kwargs):
self.hostname = hostname
super(CustomContext, self).__init__(protocol)
def wrap_socket(self, sock, server_side=False,
do_handshake_on_connect=True,
suppress_ragged_eofs=True,
server_hostname=None):
return CustomSocket(sock=sock, server_side=server_side,
do_handshake_on_connect=do_handshake_on_connect,
suppress_ragged_eofs=suppress_ragged_eofs,
server_hostname=self.hostname,
_context=self)
class CipherSuiteAdapter(host_header_ssl.HostHeaderSSLAdapter):
def __init__(self, hostname, *args, **kwargs):
self.ssl_context = kwargs.pop('ssl_context', None)
self.cipherSuite = kwargs.pop('cipherSuite', None)
self.hostname = hostname
if not self.ssl_context:
self.ssl_context = CustomContext(ssl.PROTOCOL_TLS, hostname)
self.ssl_context.set_ciphers(self.cipherSuite)
super(CipherSuiteAdapter, self).__init__(**kwargs)
# ------------------------------------------------------------------------------- #
def init_poolmanager(self, *args, **kwargs):
kwargs['ssl_context'] = self.ssl_context
return super(CipherSuiteAdapter, self).init_poolmanager(*args, **kwargs)
# ------------------------------------------------------------------------------- #
def proxy_manager_for(self, *args, **kwargs):
kwargs['ssl_context'] = self.ssl_context
return super(CipherSuiteAdapter, self).proxy_manager_for(*args, **kwargs)
# ------------------------------------------------------------------------------- #
class session(requests.Session):
def request(self, method, url,
params=None, data=None, headers=None, cookies=None, files=None,
auth=None, timeout=None, allow_redirects=True, proxies=None,
hooks=None, stream=None, verify=None, cert=None, json=None):
protocol, domain, port, resource = re.match('^(http[s]?:\/\/)?([^:\/\s]+)(?::([^\/]*))?([^\s]+)$', url, flags=re.IGNORECASE).groups()
self.mount('https://', CipherSuiteAdapter(domain, cipherSuite="ALL"))
try:
ip = doh.query(domain)
logger.info('Query DoH: ' + domain + ' = ' + str(ip))
url = protocol + ip[0] + (':' + port if port else '') + resource
except Exception:
logger.error('Failed to resolve hostname, fallback to normal dns')
import traceback
logger.error(traceback.print_exc())
if headers:
headers["Host"] = domain
else:
headers = {"Host": domain}
return super(session, self).request(method, url,
params, data, headers, cookies, files,
auth, timeout, allow_redirects, proxies,
hooks, stream, verify, cert, json)