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annotate mercurial/sslutil.py @ 28849:1fde84d42f9c

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sslutil: require a server hostname when wrapping sockets (API) All callers appear to be passing the hostname. So this shouldn't break anything. By specifying the hostname, more validation options from the ssl module are available to us. Although this patch stops short of using them.
author Gregory Szorc <gregory.szorc@gmail.com>
date Sun, 10 Apr 2016 11:00:41 -0700
parents e330db205b20
children 3819c349b194
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
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1 # sslutil.py - SSL handling for mercurial
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2 #
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3 # Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com>
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4 # Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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6 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 from __future__ import absolute_import
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11
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12 import os
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13 import ssl
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14 import sys
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15
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16 from .i18n import _
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17 from . import (
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18 error,
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19 util,
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20 )
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21
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22 # Python 2.7.9+ overhauled the built-in SSL/TLS features of Python. It added
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23 # support for TLS 1.1, TLS 1.2, SNI, system CA stores, etc. These features are
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24 # all exposed via the "ssl" module.
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25 #
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26 # Depending on the version of Python being used, SSL/TLS support is either
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27 # modern/secure or legacy/insecure. Many operations in this module have
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28 # separate code paths depending on support in Python.
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29
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30 hassni = getattr(ssl, 'HAS_SNI', False)
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31
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32 try:
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33 OP_NO_SSLv2 = ssl.OP_NO_SSLv2
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34 OP_NO_SSLv3 = ssl.OP_NO_SSLv3
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35 except AttributeError:
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36 OP_NO_SSLv2 = 0x1000000
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37 OP_NO_SSLv3 = 0x2000000
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38
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39 try:
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40 # ssl.SSLContext was added in 2.7.9 and presence indicates modern
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41 # SSL/TLS features are available.
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42 SSLContext = ssl.SSLContext
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43 modernssl = True
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44 _canloaddefaultcerts = util.safehasattr(SSLContext, 'load_default_certs')
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45 except AttributeError:
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46 modernssl = False
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47 _canloaddefaultcerts = False
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48
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49 # We implement SSLContext using the interface from the standard library.
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50 class SSLContext(object):
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51 # ssl.wrap_socket gained the "ciphers" named argument in 2.7.
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52 _supportsciphers = sys.version_info >= (2, 7)
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53
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54 def __init__(self, protocol):
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55 # From the public interface of SSLContext
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56 self.protocol = protocol
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57 self.check_hostname = False
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58 self.options = 0
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59 self.verify_mode = ssl.CERT_NONE
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60
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61 # Used by our implementation.
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62 self._certfile = None
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63 self._keyfile = None
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64 self._certpassword = None
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65 self._cacerts = None
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66 self._ciphers = None
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67
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68 def load_cert_chain(self, certfile, keyfile=None, password=None):
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69 self._certfile = certfile
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70 self._keyfile = keyfile
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71 self._certpassword = password
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72
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73 def load_default_certs(self, purpose=None):
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74 pass
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75
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76 def load_verify_locations(self, cafile=None, capath=None, cadata=None):
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77 if capath:
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78 raise error.Abort('capath not supported')
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79 if cadata:
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80 raise error.Abort('cadata not supported')
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81
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82 self._cacerts = cafile
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83
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84 def set_ciphers(self, ciphers):
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85 if not self._supportsciphers:
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86 raise error.Abort('setting ciphers not supported')
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87
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88 self._ciphers = ciphers
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89
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90 def wrap_socket(self, socket, server_hostname=None, server_side=False):
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91 # server_hostname is unique to SSLContext.wrap_socket and is used
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92 # for SNI in that context. So there's nothing for us to do with it
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93 # in this legacy code since we don't support SNI.
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94
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95 args = {
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96 'keyfile': self._keyfile,
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97 'certfile': self._certfile,
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98 'server_side': server_side,
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99 'cert_reqs': self.verify_mode,
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100 'ssl_version': self.protocol,
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101 'ca_certs': self._cacerts,
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102 }
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103
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104 if self._supportsciphers:
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105 args['ciphers'] = self._ciphers
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106
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107 return ssl.wrap_socket(socket, **args)
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108
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109 def wrapsocket(sock, keyfile, certfile, ui, cert_reqs=ssl.CERT_NONE,
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110 ca_certs=None, serverhostname=None):
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111 """Add SSL/TLS to a socket.
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112
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113 This is a glorified wrapper for ``ssl.wrap_socket()``. It makes sane
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114 choices based on what security options are available.
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115
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116 In addition to the arguments supported by ``ssl.wrap_socket``, we allow
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117 the following additional arguments:
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118
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119 * serverhostname - The expected hostname of the remote server. If the
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120 server (and client) support SNI, this tells the server which certificate
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121 to use.
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122 """
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123 if not serverhostname:
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124 raise error.Abort('serverhostname argument required')
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125
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126 # Despite its name, PROTOCOL_SSLv23 selects the highest protocol
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127 # that both ends support, including TLS protocols. On legacy stacks,
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128 # the highest it likely goes in TLS 1.0. On modern stacks, it can
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129 # support TLS 1.2.
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130 #
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131 # The PROTOCOL_TLSv* constants select a specific TLS version
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132 # only (as opposed to multiple versions). So the method for
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133 # supporting multiple TLS versions is to use PROTOCOL_SSLv23 and
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134 # disable protocols via SSLContext.options and OP_NO_* constants.
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135 # However, SSLContext.options doesn't work unless we have the
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
136 # full/real SSLContext available to us.
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
137 #
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
138 # SSLv2 and SSLv3 are broken. We ban them outright.
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
139 if modernssl:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
140 protocol = ssl.PROTOCOL_SSLv23
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
141 else:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
142 protocol = ssl.PROTOCOL_TLSv1
28651
4827d07073e6 sslutil: always use SSLContext
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28650
diff changeset
143
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
144 # TODO use ssl.create_default_context() on modernssl.
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
145 sslcontext = SSLContext(protocol)
28651
4827d07073e6 sslutil: always use SSLContext
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28650
diff changeset
146
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
147 # This is a no-op on old Python.
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
148 sslcontext.options |= OP_NO_SSLv2 | OP_NO_SSLv3
28651
4827d07073e6 sslutil: always use SSLContext
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28650
diff changeset
149
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
150 # This still works on our fake SSLContext.
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
151 sslcontext.verify_mode = cert_reqs
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
152
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
153 if certfile is not None:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
154 def password():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
155 f = keyfile or certfile
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
156 return ui.getpass(_('passphrase for %s: ') % f, '')
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
157 sslcontext.load_cert_chain(certfile, keyfile, password)
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
158
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
159 if ca_certs is not None:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
160 sslcontext.load_verify_locations(cafile=ca_certs)
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
161 else:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
162 # This is a no-op on old Python.
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
163 sslcontext.load_default_certs()
23834
bf07c19b4c82 https: support tls sni (server name indication) for https urls (issue3090)
Alex Orange <crazycasta@gmail.com>
parents: 23069
diff changeset
164
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
165 sslsocket = sslcontext.wrap_socket(sock, server_hostname=serverhostname)
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
166 # check if wrap_socket failed silently because socket had been
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
167 # closed
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
168 # - see http://bugs.python.org/issue13721
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
169 if not sslsocket.cipher():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
170 raise error.Abort(_('ssl connection failed'))
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
171 return sslsocket
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
172
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
173 def _verifycert(cert, hostname):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
174 '''Verify that cert (in socket.getpeercert() format) matches hostname.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
175 CRLs is not handled.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
176
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
177 Returns error message if any problems are found and None on success.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
178 '''
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
179 if not cert:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
180 return _('no certificate received')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
181 dnsname = hostname.lower()
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
182 def matchdnsname(certname):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
183 return (certname == dnsname or
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
184 '.' in dnsname and certname == '*.' + dnsname.split('.', 1)[1])
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
185
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
186 san = cert.get('subjectAltName', [])
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
187 if san:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
188 certnames = [value.lower() for key, value in san if key == 'DNS']
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
189 for name in certnames:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
190 if matchdnsname(name):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
191 return None
14666
27b080aa880a sslutil: fall back to commonName when no dNSName in subjectAltName (issue2798)
Nicolas Bareil <nico@chdir.org>
parents: 14616
diff changeset
192 if certnames:
27b080aa880a sslutil: fall back to commonName when no dNSName in subjectAltName (issue2798)
Nicolas Bareil <nico@chdir.org>
parents: 14616
diff changeset
193 return _('certificate is for %s') % ', '.join(certnames)
14204
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parents:
diff changeset
194
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
195 # subject is only checked when subjectAltName is empty
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
196 for s in cert.get('subject', []):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
197 key, value = s[0]
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
198 if key == 'commonName':
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
199 try:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
200 # 'subject' entries are unicode
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
201 certname = value.lower().encode('ascii')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
202 except UnicodeEncodeError:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
203 return _('IDN in certificate not supported')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
204 if matchdnsname(certname):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
205 return None
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
206 return _('certificate is for %s') % certname
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
207 return _('no commonName or subjectAltName found in certificate')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
208
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
209
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
210 # CERT_REQUIRED means fetch the cert from the server all the time AND
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
211 # validate it against the CA store provided in web.cacerts.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
212
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
213 def _plainapplepython():
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
214 """return true if this seems to be a pure Apple Python that
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
215 * is unfrozen and presumably has the whole mercurial module in the file
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
216 system
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
217 * presumably is an Apple Python that uses Apple OpenSSL which has patches
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
218 for using system certificate store CAs in addition to the provided
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
219 cacerts file
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
220 """
24614
241d98d84aed ssl: resolve symlink before checking for Apple python executable (issue4588)
Yuya Nishihara <yuya@tcha.org>
parents: 24291
diff changeset
221 if sys.platform != 'darwin' or util.mainfrozen() or not sys.executable:
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
222 return False
24614
241d98d84aed ssl: resolve symlink before checking for Apple python executable (issue4588)
Yuya Nishihara <yuya@tcha.org>
parents: 24291
diff changeset
223 exe = os.path.realpath(sys.executable).lower()
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
224 return (exe.startswith('/usr/bin/python') or
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
225 exe.startswith('/system/library/frameworks/python.framework/'))
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
226
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
227 def _defaultcacerts():
24291
760a86865f80 ssl: load CA certificates from system's store by default on Python 2.7.9
Yuya Nishihara <yuya@tcha.org>
parents: 24290
diff changeset
228 """return path to CA certificates; None for system's store; ! to disable"""
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
229 if _plainapplepython():
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
230 dummycert = os.path.join(os.path.dirname(__file__), 'dummycert.pem')
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
231 if os.path.exists(dummycert):
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
232 return dummycert
24291
760a86865f80 ssl: load CA certificates from system's store by default on Python 2.7.9
Yuya Nishihara <yuya@tcha.org>
parents: 24290
diff changeset
233 if _canloaddefaultcerts:
760a86865f80 ssl: load CA certificates from system's store by default on Python 2.7.9
Yuya Nishihara <yuya@tcha.org>
parents: 24290
diff changeset
234 return None
24290
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
235 return '!'
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
236
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
237 def sslkwargs(ui, host):
25415
21b536f01eda ssl: prompt passphrase of client key file via ui.getpass() (issue4648)
Yuya Nishihara <yuya@tcha.org>
parents: 24614
diff changeset
238 kws = {'ui': ui}
22574
a00a7951b20c ssl: refactor sslkwargs - move things around a bit, preparing for next change
Mads Kiilerich <madski@unity3d.com>
parents: 19808
diff changeset
239 hostfingerprint = ui.config('hostfingerprints', host)
a00a7951b20c ssl: refactor sslkwargs - move things around a bit, preparing for next change
Mads Kiilerich <madski@unity3d.com>
parents: 19808
diff changeset
240 if hostfingerprint:
a00a7951b20c ssl: refactor sslkwargs - move things around a bit, preparing for next change
Mads Kiilerich <madski@unity3d.com>
parents: 19808
diff changeset
241 return kws
a00a7951b20c ssl: refactor sslkwargs - move things around a bit, preparing for next change
Mads Kiilerich <madski@unity3d.com>
parents: 19808
diff changeset
242 cacerts = ui.config('web', 'cacerts')
24290
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
243 if cacerts == '!':
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
244 pass
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
245 elif cacerts:
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
246 cacerts = util.expandpath(cacerts)
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
247 if not os.path.exists(cacerts):
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25977
diff changeset
248 raise error.Abort(_('could not find web.cacerts: %s') % cacerts)
24290
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
249 else:
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
250 cacerts = _defaultcacerts()
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
251 if cacerts and cacerts != '!':
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
252 ui.debug('using %s to enable OS X system CA\n' % cacerts)
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
253 ui.setconfig('web', 'cacerts', cacerts, 'defaultcacerts')
b76d8c641746 ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 24288
diff changeset
254 if cacerts != '!':
19806
47ff9d1abfa9 sslutil: add a config knob to support TLS (default) or SSLv23 (bc) (issue4038)
Augie Fackler <raf@durin42.com>
parents: 19749
diff changeset
255 kws.update({'ca_certs': cacerts,
25432
bdc15b3c9bdb ssl: remove CERT_REQUIRED constant that was necessary for compatibility
Yuya Nishihara <yuya@tcha.org>
parents: 25431
diff changeset
256 'cert_reqs': ssl.CERT_REQUIRED,
19806
47ff9d1abfa9 sslutil: add a config knob to support TLS (default) or SSLv23 (bc) (issue4038)
Augie Fackler <raf@durin42.com>
parents: 19749
diff changeset
257 })
47ff9d1abfa9 sslutil: add a config knob to support TLS (default) or SSLv23 (bc) (issue4038)
Augie Fackler <raf@durin42.com>
parents: 19749
diff changeset
258 return kws
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
259
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
260 class validator(object):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
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261 def __init__(self, ui, host):
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262 self.ui = ui
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263 self.host = host
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264
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265 def __call__(self, sock, strict=False):
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266 host = self.host
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267 cacerts = self.ui.config('web', 'cacerts')
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parents: 27688
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268 hostfingerprints = self.ui.configlist('hostfingerprints', host)
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269
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270 if not sock.cipher(): # work around http://bugs.python.org/issue13721
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271 raise error.Abort(_('%s ssl connection error') % host)
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272 try:
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273 peercert = sock.getpeercert(True)
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274 peercert2 = sock.getpeercert()
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275 except AttributeError:
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276 raise error.Abort(_('%s ssl connection error') % host)
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277
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278 if not peercert:
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279 raise error.Abort(_('%s certificate error: '
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280 'no certificate received') % host)
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c3e958b50a22 sslutil: show fingerprint when cacerts validation fails
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parents: 15813
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281 peerfingerprint = util.sha1(peercert).hexdigest()
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282 nicefingerprint = ":".join([peerfingerprint[x:x + 2]
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283 for x in xrange(0, len(peerfingerprint), 2)])
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284 if hostfingerprints:
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285 fingerprintmatch = False
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286 for hostfingerprint in hostfingerprints:
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287 if peerfingerprint.lower() == \
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288 hostfingerprint.replace(':', '').lower():
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289 fingerprintmatch = True
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290 break
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parents: 27688
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291 if not fingerprintmatch:
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292 raise error.Abort(_('certificate for %s has unexpected '
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293 'fingerprint %s') % (host, nicefingerprint),
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294 hint=_('check hostfingerprint configuration'))
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295 self.ui.debug('%s certificate matched fingerprint %s\n' %
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296 (host, nicefingerprint))
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Yuya Nishihara <yuya@tcha.org>
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297 elif cacerts != '!':
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298 msg = _verifycert(peercert2, host)
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299 if msg:
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parents: 25977
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300 raise error.Abort(_('%s certificate error: %s') % (host, msg),
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Mads Kiilerich <mads@kiilerich.com>
parents: 15813
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301 hint=_('configure hostfingerprint %s or use '
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302 '--insecure to connect insecurely') %
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303 nicefingerprint)
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304 self.ui.debug('%s certificate successfully verified\n' % host)
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18879
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305 elif strict:
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parents: 25977
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306 raise error.Abort(_('%s certificate with fingerprint %s not '
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18879
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307 'verified') % (host, nicefingerprint),
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18879
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308 hint=_('check hostfingerprints or web.cacerts '
2d7fac049d3a sslutil: abort if peer certificate is not verified for secure use
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18879
diff changeset
309 'config setting'))
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310 else:
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Mads Kiilerich <mads@kiilerich.com>
parents: 15814
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311 self.ui.warn(_('warning: %s certificate with fingerprint %s not '
edc3a901a63d sslutil: reorder validator code to make it more readable
Mads Kiilerich <mads@kiilerich.com>
parents: 15814
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312 'verified (check hostfingerprints or web.cacerts '
edc3a901a63d sslutil: reorder validator code to make it more readable
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parents: 15814
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313 'config setting)\n') %
edc3a901a63d sslutil: reorder validator code to make it more readable
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parents: 15814
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314 (host, nicefingerprint))