Mercurial > hg
view mercurial/pycompat.py @ 29577:9654ef41f7cc
sslutil: support defining cipher list
Python 2.7 supports specifying a custom cipher list to TLS sockets.
Advanced users may wish to specify a custom cipher list to increase
security. Or in some cases they may wish to prefer weaker ciphers
in order to increase performance (e.g. when doing stream clones
of very large repositories).
This patch introduces a [hostsecurity] config option for defining
the cipher list. The help documentation states that it is for
advanced users only.
Honestly, I'm a bit on the fence about providing this because
it is a footgun and can be used to decrease security. However,
there are legitimate use cases for it, so I think support should
be provided.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 17 Jul 2016 10:59:32 -0700 |
parents | 075146e85bb6 |
children | 06587edd1233 |
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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 pickle.dumps # silence pyflakes try: import httplib httplib.HTTPException except ImportError: import http.client as httplib httplib.HTTPException try: import SocketServer as socketserver socketserver.ThreadingMixIn except ImportError: import socketserver socketserver.ThreadingMixIn try: import xmlrpclib xmlrpclib.Transport except ImportError: import xmlrpc.client as xmlrpclib xmlrpclib.Transport try: import urlparse urlparse.urlparse except ImportError: import urllib.parse as urlparse urlparse.urlparse 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 httpserver = _pycompatstub() urlreq = _pycompatstub() urlerr = _pycompatstub() try: import BaseHTTPServer import CGIHTTPServer import SimpleHTTPServer 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", )) _alias(httpserver, BaseHTTPServer, ( "HTTPServer", "BaseHTTPRequestHandler", )) _alias(httpserver, SimpleHTTPServer, ( "SimpleHTTPRequestHandler", )) _alias(httpserver, CGIHTTPServer, ( "CGIHTTPRequestHandler", )) 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", "HTTPPasswordMgrWithDefaultRealm", "ProxyHandler", "quote", "Request", "splitattr", "splitpasswd", "splitport", "splituser", "unquote", "url2pathname", "urlopen", )) import urllib.error _alias(urlerr, urllib.error, ( "HTTPError", "URLError", )) import http.server _alias(httpserver, http.server, ( "HTTPServer", "BaseHTTPRequestHandler", "SimpleHTTPRequestHandler", "CGIHTTPRequestHandler", )) try: xrange except NameError: import builtins builtins.xrange = range