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sslutil: per-host config option to define certificates...
sslutil: per-host config option to define certificates Recent work has introduced the [hostsecurity] config section for defining per-host security settings. This patch builds on top of this foundation and implements the ability to define a per-host path to a file containing certificates used for verifying the server certificate. It is logically a per-host web.cacerts setting. This patch also introduces a warning when both per-host certificates and fingerprints are defined. These are mutually exclusive for host verification and I think the user should be alerted when security settings are ambiguous because, well, security is important. Tests validating the new behavior have been added. I decided against putting "ca" in the option name because a non-CA certificate can be specified and used to validate the server certificate (commonly this will be the exact public certificate used by the server). It's worth noting that the underlying Python API used is load_verify_locations(cafile=X) and it calls into OpenSSL's SSL_CTX_load_verify_locations(). Even OpenSSL's documentation seems to omit that the file can contain a non-CA certificate if it matches the server's certificate exactly. I thought a CA certificate was a special kind of x509 certificate. Perhaps I'm wrong and any x509 certificate can be used as a CA certificate [as far as OpenSSL is concerned]. In any case, I thought it best to drop "ca" from the name because this reflects reality.
Pulkit Goyal - - Load All Authors

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pycompat.py
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# pycompat.py - portability shim for python 3
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Mercurial portability shim for python 3.
This contains aliases to hide python version-specific details from the core.
"""
from __future__ import absolute_import
try:
import cPickle as pickle
pickle.dumps
except ImportError:
import pickle
try:
import cStringIO as io
stringio = io.StringIO
except ImportError:
import io
stringio = io.StringIO
try:
import Queue as _queue
_queue.Queue
except ImportError:
import queue as _queue
empty = _queue.Empty
queue = _queue.Queue
class _pycompatstub(object):
pass
def _alias(alias, origin, items):
""" populate a _pycompatstub
copies items from origin to alias
"""
def hgcase(item):
return item.replace('_', '').lower()
for item in items:
try:
setattr(alias, hgcase(item), getattr(origin, item))
except AttributeError:
pass
urlreq = _pycompatstub()
urlerr = _pycompatstub()
try:
import urllib2
import urllib
_alias(urlreq, urllib, (
"addclosehook",
"addinfourl",
"ftpwrapper",
"pathname2url",
"quote",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlencode",
"urlencode",
))
_alias(urlreq, urllib2, (
"AbstractHTTPHandler",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPHandler",
"HTTPPasswordMgrWithDefaultRealm",
"HTTPSHandler",
"install_opener",
"ProxyHandler",
"Request",
"urlopen",
))
_alias(urlerr, urllib2, (
"HTTPError",
"URLError",
))
except ImportError:
import urllib.request
_alias(urlreq, urllib.request, (
"AbstractHTTPHandler",
"addclosehook",
"addinfourl",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"ftpwrapper",
"HTTPHandler",
"HTTPSHandler",
"install_opener",
"pathname2url",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"ProxyHandler",
"quote",
"Request",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlopen",
))
import urllib.error
_alias(urlerr, urllib.error, (
"HTTPError",
"URLError",
))
try:
xrange
except NameError:
import builtins
builtins.xrange = range