From f2fe4fc364a2a0418580824f70e162c0076b3774 Mon Sep 17 00:00:00 2001
From: pictuga <contact@pictuga.com>
Date: Mon, 6 Apr 2015 22:54:59 +0800
Subject: [PATCH] Drop HTTPS SSL certificate verification

Breaks everything with python 3. Now built-in in recent python 2.7.9 and python 3.4-ish
---
 morss/crawler.py | 91 ++----------------------------------------------
 morss/morss.py   |  3 +-
 2 files changed, 3 insertions(+), 91 deletions(-)

diff --git a/morss/crawler.py b/morss/crawler.py
index 621ac6f..fe0ec67 100644
--- a/morss/crawler.py
+++ b/morss/crawler.py
@@ -5,13 +5,9 @@ from gzip import GzipFile
 from io import BytesIO
 
 try:
-    from urllib2 import URLError
-    from urllib2 import HTTPSHandler, BaseHandler, AbstractHTTPHandler, Request, addinfourl
-    from httplib import HTTPException, HTTPConnection, HTTPS_PORT
+    from urllib2 import BaseHandler, addinfourl, parse_keqv_list, parse_http_list
 except ImportError:
-    from urllib.error import URLError
-    from urllib.request import HTTPSHandler, BaseHandler, AbstractHTTPHandler, Request, addinfourl
-    from http.client import HTTPException, HTTPConnection, HTTPS_PORT
+    from urllib.request import BaseHandler, addinfourl, parse_keqv_list, parse_http_list
 
 import re
 
@@ -25,89 +21,6 @@ MIMETYPE = {
     'xml': ['text/xml', 'application/xml', 'application/rss+xml', 'application/rdf+xml', 'application/atom+xml'],
     'html': ['text/html', 'application/xhtml+xml', 'application/xml']}
 
-
-# SSL-related code proudly copy-pasted from https://stackoverflow.com/questions/1087227/validate-ssl-certificates-with-python
-
-class InvalidCertificateException(HTTPException, URLError):
-    def __init__(self, host, cert, reason):
-        HTTPException.__init__(self)
-        self.host = host
-        self.cert = cert
-        self.reason = reason
-
-    def __str__(self):
-        return ('Host %s returned an invalid certificate (%s) %s\n' %
-                (self.host, self.reason, self.cert))
-
-
-class CertValidatingHTTPSConnection(HTTPConnection):
-    default_port = HTTPS_PORT
-
-    def __init__(self, host, port=None, key_file=None, cert_file=None,
-                             ca_certs=None, strict=None, **kwargs):
-        HTTPConnection.__init__(self, host, port, strict, **kwargs)
-        self.key_file = key_file
-        self.cert_file = cert_file
-        self.ca_certs = ca_certs
-        if self.ca_certs:
-            self.cert_reqs = ssl.CERT_REQUIRED
-        else:
-            self.cert_reqs = ssl.CERT_NONE
-
-    def _GetValidHostsForCert(self, cert):
-        if 'subjectAltName' in cert:
-            return [x[1] for x in cert['subjectAltName']
-                         if x[0].lower() == 'dns']
-        else:
-            return [x[0][1] for x in cert['subject']
-                            if x[0][0].lower() == 'commonname']
-
-    def _ValidateCertificateHostname(self, cert, hostname):
-        hosts = self._GetValidHostsForCert(cert)
-        for host in hosts:
-            host_re = host.replace('.', '\.').replace('*', '[^.]*')
-            if re.search('^%s$' % (host_re,), hostname, re.I):
-                return True
-        return False
-
-    def connect(self):
-        sock = socket.create_connection((self.host, self.port))
-        self.sock = ssl.wrap_socket(sock, keyfile=self.key_file,
-                                          certfile=self.cert_file,
-                                          cert_reqs=self.cert_reqs,
-                                          ca_certs=self.ca_certs)
-        if self.cert_reqs & ssl.CERT_REQUIRED:
-            cert = self.sock.getpeercert()
-            hostname = self.host.split(':', 0)[0]
-            if not self._ValidateCertificateHostname(cert, hostname):
-                raise InvalidCertificateException(hostname, cert,
-                                                  'hostname mismatch')
-
-
-class VerifiedHTTPSHandler(HTTPSHandler):
-    def __init__(self, **kwargs):
-        AbstractHTTPHandler.__init__(self)
-        self._connection_args = kwargs
-
-    def https_open(self, req):
-        def http_class_wrapper(host, **kwargs):
-            full_kwargs = dict(self._connection_args)
-            full_kwargs.update(kwargs)
-            return CertValidatingHTTPSConnection(host, **full_kwargs)
-
-        try:
-            return self.do_open(http_class_wrapper, req)
-        except URLError as e:
-            if type(e.reason) == ssl.SSLError and e.reason.args[0] == 1:
-                raise InvalidCertificateException(req.host, '',
-                                                  e.reason.args[1])
-            raise
-
-    https_request = HTTPSHandler.do_request_
-
-# end of copy-paste code
-
-
 class GZIPHandler(BaseHandler):
     def http_request(self, req):
         req.add_unredirected_header('Accept-Encoding', 'gzip')
diff --git a/morss/morss.py b/morss/morss.py
index 371626a..00682b0 100644
--- a/morss/morss.py
+++ b/morss/morss.py
@@ -232,8 +232,7 @@ class Cache:
             return self
 
 
-default_handlers = [crawler.VerifiedHTTPSHandler(ca_certs=CA_CERT),
-                    crawler.GZIPHandler(), crawler.UAHandler(DEFAULT_UA),
+default_handlers = [crawler.GZIPHandler(), crawler.UAHandler(DEFAULT_UA),
                     crawler.AutoRefererHandler(), crawler.MetaRedirectHandler(),
                     crawler.EncodingFixHandler()]