annotate mercurial/sslutil.py @ 42760:9f2189b6bf2a

config: add experimental argument to the config registrar Until now, there are almost 28 config items which are considered as `experimental` but, not present in the `experimental` section of the registrar. This patch adds an `experimental` argument to the config registrar to mark such config items. Differential Revision: https://phab.mercurial-scm.org/D6728 Differential Revision: https://phab.mercurial-scm.org/D6746
author Navaneeth Suresh <navaneeths1998@gmail.com>
date Tue, 20 Aug 2019 18:35:16 +0300
parents c8d55ff80da1
children 2372284d9457
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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 hashlib
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13 import os
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14 import re
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15 import ssl
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16
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17 from .i18n import _
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18 from . import (
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19 encoding,
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20 error,
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21 node,
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22 pycompat,
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23 util,
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24 )
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25 from .utils import (
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26 procutil,
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27 stringutil,
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28 )
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29
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30 # Python 2.7.9+ overhauled the built-in SSL/TLS features of Python. It added
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31 # support for TLS 1.1, TLS 1.2, SNI, system CA stores, etc. These features are
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32 # all exposed via the "ssl" module.
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33 #
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34 # Depending on the version of Python being used, SSL/TLS support is either
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35 # modern/secure or legacy/insecure. Many operations in this module have
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36 # separate code paths depending on support in Python.
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37
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38 configprotocols = {
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39 'tls1.0',
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40 'tls1.1',
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41 'tls1.2',
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42 }
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43
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44 hassni = getattr(ssl, 'HAS_SNI', False)
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45
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46 # TLS 1.1 and 1.2 may not be supported if the OpenSSL Python is compiled
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47 # against doesn't support them.
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48 supportedprotocols = {'tls1.0'}
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49 if util.safehasattr(ssl, 'PROTOCOL_TLSv1_1'):
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50 supportedprotocols.add('tls1.1')
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51 if util.safehasattr(ssl, 'PROTOCOL_TLSv1_2'):
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52 supportedprotocols.add('tls1.2')
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53
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54 try:
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55 # ssl.SSLContext was added in 2.7.9 and presence indicates modern
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56 # SSL/TLS features are available.
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57 SSLContext = ssl.SSLContext
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58 modernssl = True
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59 _canloaddefaultcerts = util.safehasattr(SSLContext, 'load_default_certs')
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60 except AttributeError:
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61 modernssl = False
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62 _canloaddefaultcerts = False
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63
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64 # We implement SSLContext using the interface from the standard library.
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65 class SSLContext(object):
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66 def __init__(self, protocol):
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67 # From the public interface of SSLContext
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68 self.protocol = protocol
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69 self.check_hostname = False
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70 self.options = 0
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71 self.verify_mode = ssl.CERT_NONE
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72
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73 # Used by our implementation.
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74 self._certfile = None
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75 self._keyfile = None
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76 self._certpassword = None
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77 self._cacerts = None
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78 self._ciphers = None
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79
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80 def load_cert_chain(self, certfile, keyfile=None, password=None):
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81 self._certfile = certfile
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82 self._keyfile = keyfile
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83 self._certpassword = password
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84
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85 def load_default_certs(self, purpose=None):
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86 pass
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87
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88 def load_verify_locations(self, cafile=None, capath=None, cadata=None):
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89 if capath:
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90 raise error.Abort(_('capath not supported'))
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91 if cadata:
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92 raise error.Abort(_('cadata not supported'))
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93
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94 self._cacerts = cafile
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95
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96 def set_ciphers(self, ciphers):
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97 self._ciphers = ciphers
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98
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99 def wrap_socket(self, socket, server_hostname=None, server_side=False):
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100 # server_hostname is unique to SSLContext.wrap_socket and is used
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101 # for SNI in that context. So there's nothing for us to do with it
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102 # in this legacy code since we don't support SNI.
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103
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104 args = {
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105 r'keyfile': self._keyfile,
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106 r'certfile': self._certfile,
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107 r'server_side': server_side,
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108 r'cert_reqs': self.verify_mode,
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109 r'ssl_version': self.protocol,
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110 r'ca_certs': self._cacerts,
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111 r'ciphers': self._ciphers,
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112 }
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113
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114 return ssl.wrap_socket(socket, **args)
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115
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116 def _hostsettings(ui, hostname):
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117 """Obtain security settings for a hostname.
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118
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119 Returns a dict of settings relevant to that hostname.
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120 """
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121 bhostname = pycompat.bytesurl(hostname)
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122 s = {
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123 # Whether we should attempt to load default/available CA certs
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124 # if an explicit ``cafile`` is not defined.
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125 'allowloaddefaultcerts': True,
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126 # List of 2-tuple of (hash algorithm, hash).
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127 'certfingerprints': [],
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128 # Path to file containing concatenated CA certs. Used by
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129 # SSLContext.load_verify_locations().
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130 'cafile': None,
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131 # Whether certificate verification should be disabled.
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132 'disablecertverification': False,
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133 # Whether the legacy [hostfingerprints] section has data for this host.
f200b58497f1 sslutil: reference appropriate config section in messaging
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29267
diff changeset
134 'legacyfingerprint': False,
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
135 # PROTOCOL_* constant to use for SSLContext.__init__.
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
136 'protocol': None,
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
137 # String representation of minimum protocol to be used for UI
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
138 # presentation.
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
139 'protocolui': None,
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
140 # ssl.CERT_* constant used by SSLContext.verify_mode.
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
141 'verifymode': None,
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
142 # Defines extra ssl.OP* bitwise options to set.
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
143 'ctxoptions': None,
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
144 # OpenSSL Cipher List to use (instead of default).
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
145 'ciphers': None,
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
146 }
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
147
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
148 # Allow minimum TLS protocol to be specified in the config.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
149 def validateprotocol(protocol, key):
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
150 if protocol not in configprotocols:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
151 raise error.Abort(
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
152 _('unsupported protocol from hostsecurity.%s: %s') %
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
153 (key, protocol),
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
154 hint=_('valid protocols: %s') %
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
155 ' '.join(sorted(configprotocols)))
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
156
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
157 # We default to TLS 1.1+ where we can because TLS 1.0 has known
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
158 # vulnerabilities (like BEAST and POODLE). We allow users to downgrade to
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
159 # TLS 1.0+ via config options in case a legacy server is encountered.
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
160 if 'tls1.1' in supportedprotocols:
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
161 defaultprotocol = 'tls1.1'
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
162 else:
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
163 # Let people know they are borderline secure.
29561
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
164 # We don't document this config option because we want people to see
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
165 # the bold warnings on the web site.
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
166 # internal config: hostsecurity.disabletls10warning
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
167 if not ui.configbool('hostsecurity', 'disabletls10warning'):
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
168 ui.warn(_('warning: connecting to %s using legacy security '
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
169 'technology (TLS 1.0); see '
1a782fabf80d sslutil: print a warning when using TLS 1.0 on legacy Python
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29560
diff changeset
170 'https://mercurial-scm.org/wiki/SecureConnections for '
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
171 'more info\n') % bhostname)
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
172 defaultprotocol = 'tls1.0'
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
173
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
174 key = 'minimumprotocol'
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
175 protocol = ui.config('hostsecurity', key, defaultprotocol)
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
176 validateprotocol(protocol, key)
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
177
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
178 key = '%s:minimumprotocol' % bhostname
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
179 protocol = ui.config('hostsecurity', key, protocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
180 validateprotocol(protocol, key)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
181
29617
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
182 # If --insecure is used, we allow the use of TLS 1.0 despite config options.
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
183 # We always print a "connection security to %s is disabled..." message when
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
184 # --insecure is used. So no need to print anything more here.
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
185 if ui.insecureconnections:
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
186 protocol = 'tls1.0'
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
187
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
188 s['protocol'], s['ctxoptions'], s['protocolui'] = protocolsettings(protocol)
29558
a935cd7d51a6 sslutil: prevent CRIME
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29557
diff changeset
189
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
190 ciphers = ui.config('hostsecurity', 'ciphers')
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
191 ciphers = ui.config('hostsecurity', '%s:ciphers' % bhostname, ciphers)
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
192 s['ciphers'] = ciphers
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
193
29267
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
194 # Look for fingerprints in [hostsecurity] section. Value is a list
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
195 # of <alg>:<fingerprint> strings.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
196 fingerprints = ui.configlist('hostsecurity', '%s:fingerprints' % bhostname)
29267
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
197 for fingerprint in fingerprints:
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
198 if not (fingerprint.startswith(('sha1:', 'sha256:', 'sha512:'))):
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
199 raise error.Abort(_('invalid fingerprint for %s: %s') % (
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
200 bhostname, fingerprint),
29267
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
201 hint=_('must begin with "sha1:", "sha256:", '
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
202 'or "sha512:"'))
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
203
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
204 alg, fingerprint = fingerprint.split(':', 1)
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
205 fingerprint = fingerprint.replace(':', '').lower()
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
206 s['certfingerprints'].append((alg, fingerprint))
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
207
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
208 # Fingerprints from [hostfingerprints] are always SHA-1.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
209 for fingerprint in ui.configlist('hostfingerprints', bhostname):
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
210 fingerprint = fingerprint.replace(':', '').lower()
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
211 s['certfingerprints'].append(('sha1', fingerprint))
29268
f200b58497f1 sslutil: reference appropriate config section in messaging
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29267
diff changeset
212 s['legacyfingerprint'] = True
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
213
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
214 # If a host cert fingerprint is defined, it is the only thing that
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
215 # matters. No need to validate CA certs.
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
216 if s['certfingerprints']:
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
217 s['verifymode'] = ssl.CERT_NONE
29447
13edc11eb7b7 sslutil: don't load default certificates when they aren't relevant
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29446
diff changeset
218 s['allowloaddefaultcerts'] = False
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
219
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
220 # If --insecure is used, don't take CAs into consideration.
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
221 elif ui.insecureconnections:
29287
fbccb334efe7 sslutil: store flag for whether cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29286
diff changeset
222 s['disablecertverification'] = True
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
223 s['verifymode'] = ssl.CERT_NONE
29447
13edc11eb7b7 sslutil: don't load default certificates when they aren't relevant
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29446
diff changeset
224 s['allowloaddefaultcerts'] = False
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
225
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
226 if ui.configbool('devel', 'disableloaddefaultcerts'):
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
227 s['allowloaddefaultcerts'] = False
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
228
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
229 # If both fingerprints and a per-host ca file are specified, issue a warning
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
230 # because users should not be surprised about what security is or isn't
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
231 # being performed.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
232 cafile = ui.config('hostsecurity', '%s:verifycertsfile' % bhostname)
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
233 if s['certfingerprints'] and cafile:
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
234 ui.warn(_('(hostsecurity.%s:verifycertsfile ignored when host '
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
235 'fingerprints defined; using host fingerprints for '
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
236 'verification)\n') % bhostname)
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
237
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
238 # Try to hook up CA certificate validation unless something above
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
239 # makes it not necessary.
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
240 if s['verifymode'] is None:
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
241 # Look at per-host ca file first.
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
242 if cafile:
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
243 cafile = util.expandpath(cafile)
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
244 if not os.path.exists(cafile):
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
245 raise error.Abort(_('path specified by %s does not exist: %s') %
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
246 ('hostsecurity.%s:verifycertsfile' % (
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
247 bhostname,), cafile))
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
248 s['cafile'] = cafile
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
249 else:
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
250 # Find global certificates file in config.
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
251 cafile = ui.config('web', 'cacerts')
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
252
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
253 if cafile:
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
254 cafile = util.expandpath(cafile)
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
255 if not os.path.exists(cafile):
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
256 raise error.Abort(_('could not find web.cacerts: %s') %
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
257 cafile)
29484
53b7fc7cc2bb sslutil: don't attempt to find default CA certs file when told not to
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29483
diff changeset
258 elif s['allowloaddefaultcerts']:
29482
4e72995f6c9c sslutil: change comment and logged message for found ca cert file
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29459
diff changeset
259 # CAs not defined in config. Try to find system bundles.
29483
918dce4b8c26 sslutil: pass ui to _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29482
diff changeset
260 cafile = _defaultcacerts(ui)
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
261 if cafile:
29482
4e72995f6c9c sslutil: change comment and logged message for found ca cert file
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29459
diff changeset
262 ui.debug('using %s for CA file\n' % cafile)
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
263
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
264 s['cafile'] = cafile
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
265
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
266 # Require certificate validation if CA certs are being loaded and
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
267 # verification hasn't been disabled above.
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
268 if cafile or (_canloaddefaultcerts and s['allowloaddefaultcerts']):
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
269 s['verifymode'] = ssl.CERT_REQUIRED
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
270 else:
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
271 # At this point we don't have a fingerprint, aren't being
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
272 # explicitly insecure, and can't load CA certs. Connecting
29411
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
273 # is insecure. We allow the connection and abort during
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
274 # validation (once we have the fingerprint to print to the
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
275 # user).
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
276 s['verifymode'] = ssl.CERT_NONE
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
277
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
278 assert s['protocol'] is not None
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
279 assert s['ctxoptions'] is not None
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
280 assert s['verifymode'] is not None
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
281
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
282 return s
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
283
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
284 def protocolsettings(protocol):
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
285 """Resolve the protocol for a config value.
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
286
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
287 Returns a 3-tuple of (protocol, options, ui value) where the first
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
288 2 items are values used by SSLContext and the last is a string value
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
289 of the ``minimumprotocol`` config option equivalent.
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
290 """
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
291 if protocol not in configprotocols:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
292 raise ValueError('protocol value not supported: %s' % protocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
293
29578
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
294 # Despite its name, PROTOCOL_SSLv23 selects the highest protocol
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
295 # that both ends support, including TLS protocols. On legacy stacks,
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
296 # the highest it likely goes is TLS 1.0. On modern stacks, it can
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
297 # support TLS 1.2.
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
298 #
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
299 # The PROTOCOL_TLSv* constants select a specific TLS version
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
300 # only (as opposed to multiple versions). So the method for
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
301 # supporting multiple TLS versions is to use PROTOCOL_SSLv23 and
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
302 # disable protocols via SSLContext.options and OP_NO_* constants.
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
303 # However, SSLContext.options doesn't work unless we have the
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
304 # full/real SSLContext available to us.
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32273
diff changeset
305 if supportedprotocols == {'tls1.0'}:
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
306 if protocol != 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
307 raise error.Abort(_('current Python does not support protocol '
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
308 'setting %s') % protocol,
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
309 hint=_('upgrade Python or disable setting since '
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
310 'only TLS 1.0 is supported'))
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
311
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
312 return ssl.PROTOCOL_TLSv1, 0, 'tls1.0'
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
313
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
314 # WARNING: returned options don't work unless the modern ssl module
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
315 # is available. Be careful when adding options here.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
316
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
317 # SSLv2 and SSLv3 are broken. We ban them outright.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
318 options = ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
319
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
320 if protocol == 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
321 # Defaults above are to use TLS 1.0+
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
322 pass
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
323 elif protocol == 'tls1.1':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
324 options |= ssl.OP_NO_TLSv1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
325 elif protocol == 'tls1.2':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
326 options |= ssl.OP_NO_TLSv1 | ssl.OP_NO_TLSv1_1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
327 else:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
328 raise error.Abort(_('this should not happen'))
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
329
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
330 # Prevent CRIME.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
331 # There is no guarantee this attribute is defined on the module.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
332 options |= getattr(ssl, 'OP_NO_COMPRESSION', 0)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
333
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
334 return ssl.PROTOCOL_SSLv23, options, protocol
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
335
29249
cca59ef27e60 sslutil: move sslkwargs logic into internal function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29248
diff changeset
336 def wrapsocket(sock, keyfile, certfile, ui, serverhostname=None):
28653
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
337 """Add SSL/TLS to a socket.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
338
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
339 This is a glorified wrapper for ``ssl.wrap_socket()``. It makes sane
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
340 choices based on what security options are available.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
341
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
342 In addition to the arguments supported by ``ssl.wrap_socket``, we allow
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
343 the following additional arguments:
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
344
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
345 * serverhostname - The expected hostname of the remote server. If the
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
346 server (and client) support SNI, this tells the server which certificate
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
347 to use.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
348 """
29224
7424f4294199 sslutil: require serverhostname argument (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29115
diff changeset
349 if not serverhostname:
29389
98e8313dcd9e i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents: 29341
diff changeset
350 raise error.Abort(_('serverhostname argument is required'))
29224
7424f4294199 sslutil: require serverhostname argument (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29115
diff changeset
351
42269
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
352 if b'SSLKEYLOGFILE' in encoding.environ:
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
353 try:
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
354 import sslkeylog
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
355 sslkeylog.set_keylog(pycompat.fsdecode(
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
356 encoding.environ[b'SSLKEYLOGFILE']))
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
357 ui.warn(
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
358 b'sslkeylog enabled by SSLKEYLOGFILE environment variable\n')
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
359 except ImportError:
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
360 ui.warn(b'sslkeylog module missing, '
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
361 b'but SSLKEYLOGFILE set in environment\n')
c8d55ff80da1 sslutil: add support for SSLKEYLOGFILE to wrapsocket
Augie Fackler <augie@google.com>
parents: 42263
diff changeset
362
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
363 for f in (keyfile, certfile):
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
364 if f and not os.path.exists(f):
36747
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
365 raise error.Abort(
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
366 _('certificate file (%s) does not exist; cannot connect to %s')
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
367 % (f, pycompat.bytesurl(serverhostname)),
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
368 hint=_('restore missing file or fix references '
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
369 'in Mercurial config'))
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
370
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
371 settings = _hostsettings(ui, serverhostname)
29249
cca59ef27e60 sslutil: move sslkwargs logic into internal function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29248
diff changeset
372
29557
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
373 # We can't use ssl.create_default_context() because it calls
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
374 # load_default_certs() unless CA arguments are passed to it. We want to
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
375 # have explicit control over CA loading because implicitly loading
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
376 # CAs may undermine the user's intent. For example, a user may define a CA
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
377 # bundle with a specific CA cert removed. If the system/default CA bundle
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
378 # is loaded and contains that removed CA, you've just undone the user's
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
379 # choice.
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
380 sslcontext = SSLContext(settings['protocol'])
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
381
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
382 # This is a no-op unless using modern ssl.
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
383 sslcontext.options |= settings['ctxoptions']
28651
4827d07073e6 sslutil: always use SSLContext
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28650
diff changeset
384
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
385 # This still works on our fake SSLContext.
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
386 sslcontext.verify_mode = settings['verifymode']
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
387
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
388 if settings['ciphers']:
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
389 try:
36746
25798cf7dc9d sslutil: sslcontext needs the cipher name as a sysstr
Augie Fackler <augie@google.com>
parents: 36745
diff changeset
390 sslcontext.set_ciphers(pycompat.sysstr(settings['ciphers']))
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
391 except ssl.SSLError as e:
36747
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
392 raise error.Abort(
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
393 _('could not set ciphers: %s')
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
394 % stringutil.forcebytestr(e.args[0]),
36747
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
395 hint=_('change cipher string (%s) in config') %
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
396 settings['ciphers'])
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
397
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
398 if certfile is not None:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
399 def password():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
400 f = keyfile or certfile
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
401 return ui.getpass(_('passphrase for %s: ') % f, '')
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
402 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
403
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
404 if settings['cafile'] is not None:
29446
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
405 try:
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
406 sslcontext.load_verify_locations(cafile=settings['cafile'])
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
407 except ssl.SSLError as e:
29927
799e36749f1a ssl: handle a difference in SSLError with pypy (issue5348)
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29631
diff changeset
408 if len(e.args) == 1: # pypy has different SSLError args
799e36749f1a ssl: handle a difference in SSLError with pypy (issue5348)
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29631
diff changeset
409 msg = e.args[0]
799e36749f1a ssl: handle a difference in SSLError with pypy (issue5348)
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29631
diff changeset
410 else:
799e36749f1a ssl: handle a difference in SSLError with pypy (issue5348)
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29631
diff changeset
411 msg = e.args[1]
29446
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
412 raise error.Abort(_('error loading CA file %s: %s') % (
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
413 settings['cafile'], stringutil.forcebytestr(msg)),
29446
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
414 hint=_('file is empty or malformed?'))
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
415 caloaded = True
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
416 elif settings['allowloaddefaultcerts']:
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
417 # 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
418 sslcontext.load_default_certs()
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
419 caloaded = True
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
420 else:
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
421 caloaded = False
23834
bf07c19b4c82 https: support tls sni (server name indication) for https urls (issue3090)
Alex Orange <crazycasta@gmail.com>
parents: 23069
diff changeset
422
29449
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
423 try:
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
424 sslsocket = sslcontext.wrap_socket(sock, server_hostname=serverhostname)
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
425 except ssl.SSLError as e:
29449
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
426 # If we're doing certificate verification and no CA certs are loaded,
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
427 # that is almost certainly the reason why verification failed. Provide
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
428 # a hint to the user.
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
429 # Only modern ssl module exposes SSLContext.get_ca_certs() so we can
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
430 # only show this warning if modern ssl is available.
31725
c777b12cdc9b sslutil: clarify internal documentation
Matt Harbison <matt_harbison@yahoo.com>
parents: 31290
diff changeset
431 # The exception handler is here to handle bugs around cert attributes:
c777b12cdc9b sslutil: clarify internal documentation
Matt Harbison <matt_harbison@yahoo.com>
parents: 31290
diff changeset
432 # https://bugs.python.org/issue20916#msg213479. (See issues5313.)
c777b12cdc9b sslutil: clarify internal documentation
Matt Harbison <matt_harbison@yahoo.com>
parents: 31290
diff changeset
433 # When the main 20916 bug occurs, 'sslcontext.get_ca_certs()' is a
c777b12cdc9b sslutil: clarify internal documentation
Matt Harbison <matt_harbison@yahoo.com>
parents: 31290
diff changeset
434 # non-empty list, but the following conditional is otherwise True.
29631
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
435 try:
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
436 if (caloaded and settings['verifymode'] == ssl.CERT_REQUIRED and
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
437 modernssl and not sslcontext.get_ca_certs()):
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
438 ui.warn(_('(an attempt was made to load CA certificates but '
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
439 'none were loaded; see '
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
440 'https://mercurial-scm.org/wiki/SecureConnections '
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
441 'for how to configure Mercurial to avoid this '
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
442 'error)\n'))
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
443 except ssl.SSLError:
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
444 pass
41410
0d226b2139df sslutil: use raw strings for exception reason compare
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38475
diff changeset
445
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
446 # Try to print more helpful error messages for known failures.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
447 if util.safehasattr(e, 'reason'):
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
448 # This error occurs when the client and server don't share a
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
449 # common/supported SSL/TLS protocol. We've disabled SSLv2 and SSLv3
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
450 # outright. Hopefully the reason for this error is that we require
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
451 # TLS 1.1+ and the server only supports TLS 1.0. Whatever the
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
452 # reason, try to emit an actionable warning.
41410
0d226b2139df sslutil: use raw strings for exception reason compare
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38475
diff changeset
453 if e.reason == r'UNSUPPORTED_PROTOCOL':
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
454 # We attempted TLS 1.0+.
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
455 if settings['protocolui'] == 'tls1.0':
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
456 # We support more than just TLS 1.0+. If this happens,
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
457 # the likely scenario is either the client or the server
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
458 # is really old. (e.g. server doesn't support TLS 1.0+ or
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
459 # client doesn't support modern TLS versions introduced
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
460 # several years from when this comment was written).
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32273
diff changeset
461 if supportedprotocols != {'tls1.0'}:
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
462 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
463 '(could not communicate with %s using security '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
464 'protocols %s; if you are using a modern Mercurial '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
465 'version, consider contacting the operator of this '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
466 'server; see '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
467 'https://mercurial-scm.org/wiki/SecureConnections '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
468 'for more info)\n') % (
41411
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
469 pycompat.bytesurl(serverhostname),
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
470 ', '.join(sorted(supportedprotocols))))
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
471 else:
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
472 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
473 '(could not communicate with %s using TLS 1.0; the '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
474 'likely cause of this is the server no longer '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
475 'supports TLS 1.0 because it has known security '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
476 'vulnerabilities; see '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
477 'https://mercurial-scm.org/wiki/SecureConnections '
41411
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
478 'for more info)\n') %
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
479 pycompat.bytesurl(serverhostname))
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
480 else:
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
481 # We attempted TLS 1.1+. We can only get here if the client
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
482 # supports the configured protocol. So the likely reason is
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
483 # the client wants better security than the server can
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
484 # offer.
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
485 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
486 '(could not negotiate a common security protocol (%s+) '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
487 'with %s; the likely cause is Mercurial is configured '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
488 'to be more secure than the server can support)\n') % (
41411
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
489 settings['protocolui'],
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
490 pycompat.bytesurl(serverhostname)))
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
491 ui.warn(_('(consider contacting the operator of this '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
492 'server and ask them to support modern TLS '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
493 'protocol versions; or, set '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
494 'hostsecurity.%s:minimumprotocol=tls1.0 to allow '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
495 'use of legacy, less secure protocols when '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
496 'communicating with this server)\n') %
41411
f07aff7e8b5a sslutil: ensure serverhostname is bytes when formatting
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41410
diff changeset
497 pycompat.bytesurl(serverhostname))
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
498 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
499 '(see https://mercurial-scm.org/wiki/SecureConnections '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
500 'for more info)\n'))
33494
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
501
41410
0d226b2139df sslutil: use raw strings for exception reason compare
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38475
diff changeset
502 elif (e.reason == r'CERTIFICATE_VERIFY_FAILED' and
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 33494
diff changeset
503 pycompat.iswindows):
33494
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
504
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
505 ui.warn(_('(the full certificate chain may not be available '
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
506 'locally; see "hg help debugssl")\n'))
29449
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
507 raise
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
508
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
509 # 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
510 # closed
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
511 # - see http://bugs.python.org/issue13721
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
512 if not sslsocket.cipher():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
513 raise error.Abort(_('ssl connection failed'))
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
514
29225
b115eed11780 sslutil: use a dict for hanging hg state off the wrapped socket
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29224
diff changeset
515 sslsocket._hgstate = {
b115eed11780 sslutil: use a dict for hanging hg state off the wrapped socket
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29224
diff changeset
516 'caloaded': caloaded,
29226
33006bd6a1d7 sslutil: store and use hostname and ui in socket instance
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29225
diff changeset
517 'hostname': serverhostname,
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
518 'settings': settings,
29226
33006bd6a1d7 sslutil: store and use hostname and ui in socket instance
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29225
diff changeset
519 'ui': ui,
29225
b115eed11780 sslutil: use a dict for hanging hg state off the wrapped socket
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29224
diff changeset
520 }
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
521
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
522 return sslsocket
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
523
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
524 def wrapserversocket(sock, ui, certfile=None, keyfile=None, cafile=None,
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
525 requireclientcert=False):
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
526 """Wrap a socket for use by servers.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
527
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
528 ``certfile`` and ``keyfile`` specify the files containing the certificate's
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
529 public and private keys, respectively. Both keys can be defined in the same
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
530 file via ``certfile`` (the private key must come first in the file).
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
531
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
532 ``cafile`` defines the path to certificate authorities.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
533
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
534 ``requireclientcert`` specifies whether to require client certificates.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
535
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
536 Typically ``cafile`` is only defined if ``requireclientcert`` is true.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
537 """
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
538 # This function is not used much by core Mercurial, so the error messaging
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
539 # doesn't have to be as detailed as for wrapsocket().
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
540 for f in (certfile, keyfile, cafile):
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
541 if f and not os.path.exists(f):
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
542 raise error.Abort(_('referenced certificate file (%s) does not '
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
543 'exist') % f)
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
544
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
545 protocol, options, _protocolui = protocolsettings('tls1.0')
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
546
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
547 # This config option is intended for use in tests only. It is a giant
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
548 # footgun to kill security. Don't define it.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
549 exactprotocol = ui.config('devel', 'serverexactprotocol')
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
550 if exactprotocol == 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
551 protocol = ssl.PROTOCOL_TLSv1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
552 elif exactprotocol == 'tls1.1':
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
553 if 'tls1.1' not in supportedprotocols:
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
554 raise error.Abort(_('TLS 1.1 not supported by this Python'))
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
555 protocol = ssl.PROTOCOL_TLSv1_1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
556 elif exactprotocol == 'tls1.2':
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
557 if 'tls1.2' not in supportedprotocols:
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
558 raise error.Abort(_('TLS 1.2 not supported by this Python'))
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
559 protocol = ssl.PROTOCOL_TLSv1_2
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
560 elif exactprotocol:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
561 raise error.Abort(_('invalid value for serverexactprotocol: %s') %
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
562 exactprotocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
563
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
564 if modernssl:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
565 # We /could/ use create_default_context() here since it doesn't load
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
566 # CAs when configured for client auth. However, it is hard-coded to
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
567 # use ssl.PROTOCOL_SSLv23 which may not be appropriate here.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
568 sslcontext = SSLContext(protocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
569 sslcontext.options |= options
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
570
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
571 # Improve forward secrecy.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
572 sslcontext.options |= getattr(ssl, 'OP_SINGLE_DH_USE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
573 sslcontext.options |= getattr(ssl, 'OP_SINGLE_ECDH_USE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
574
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
575 # Use the list of more secure ciphers if found in the ssl module.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
576 if util.safehasattr(ssl, '_RESTRICTED_SERVER_CIPHERS'):
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
577 sslcontext.options |= getattr(ssl, 'OP_CIPHER_SERVER_PREFERENCE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
578 sslcontext.set_ciphers(ssl._RESTRICTED_SERVER_CIPHERS)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
579 else:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
580 sslcontext = SSLContext(ssl.PROTOCOL_TLSv1)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
581
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
582 if requireclientcert:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
583 sslcontext.verify_mode = ssl.CERT_REQUIRED
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
584 else:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
585 sslcontext.verify_mode = ssl.CERT_NONE
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
586
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
587 if certfile or keyfile:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
588 sslcontext.load_cert_chain(certfile=certfile, keyfile=keyfile)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
589
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
590 if cafile:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
591 sslcontext.load_verify_locations(cafile=cafile)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
592
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
593 return sslcontext.wrap_socket(sock, server_side=True)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
594
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
595 class wildcarderror(Exception):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
596 """Represents an error parsing wildcards in DNS name."""
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
597
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
598 def _dnsnamematch(dn, hostname, maxwildcards=1):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
599 """Match DNS names according RFC 6125 section 6.4.3.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
600
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
601 This code is effectively copied from CPython's ssl._dnsname_match.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
602
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
603 Returns a bool indicating whether the expected hostname matches
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
604 the value in ``dn``.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
605 """
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
606 pats = []
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
607 if not dn:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
608 return False
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
609 dn = pycompat.bytesurl(dn)
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
610 hostname = pycompat.bytesurl(hostname)
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
611
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
612 pieces = dn.split('.')
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
613 leftmost = pieces[0]
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
614 remainder = pieces[1:]
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
615 wildcards = leftmost.count('*')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
616 if wildcards > maxwildcards:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
617 raise wildcarderror(
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
618 _('too many wildcards in certificate DNS name: %s') % dn)
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
619
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
620 # speed up common case w/o wildcards
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
621 if not wildcards:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
622 return dn.lower() == hostname.lower()
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
623
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
624 # RFC 6125, section 6.4.3, subitem 1.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
625 # The client SHOULD NOT attempt to match a presented identifier in which
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
626 # the wildcard character comprises a label other than the left-most label.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
627 if leftmost == '*':
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
628 # When '*' is a fragment by itself, it matches a non-empty dotless
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
629 # fragment.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
630 pats.append('[^.]+')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
631 elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
632 # RFC 6125, section 6.4.3, subitem 3.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
633 # The client SHOULD NOT attempt to match a presented identifier
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
634 # where the wildcard character is embedded within an A-label or
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
635 # U-label of an internationalized domain name.
38475
67dc32d4e790 cleanup: migrate from re.escape to stringutil.reescape
Augie Fackler <augie@google.com>
parents: 37872
diff changeset
636 pats.append(stringutil.reescape(leftmost))
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
637 else:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
638 # Otherwise, '*' matches any dotless string, e.g. www*
38475
67dc32d4e790 cleanup: migrate from re.escape to stringutil.reescape
Augie Fackler <augie@google.com>
parents: 37872
diff changeset
639 pats.append(stringutil.reescape(leftmost).replace(br'\*', '[^.]*'))
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
640
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
641 # add the remaining fragments, ignore any wildcards
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
642 for frag in remainder:
38475
67dc32d4e790 cleanup: migrate from re.escape to stringutil.reescape
Augie Fackler <augie@google.com>
parents: 37872
diff changeset
643 pats.append(stringutil.reescape(frag))
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
644
37666
46e705b79323 py3: add b'' prefixes to make values bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 37120
diff changeset
645 pat = re.compile(br'\A' + br'\.'.join(pats) + br'\Z', re.IGNORECASE)
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
646 return pat.match(hostname) is not None
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
647
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
648 def _verifycert(cert, hostname):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
649 '''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
650 CRLs is not handled.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
651
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
652 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
653 '''
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
654 if not cert:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
655 return _('no certificate received')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
656
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
657 dnsnames = []
37872
51a2f8d199c7 sslutil: fix some edge cases in Python 3 support
Augie Fackler <augie@google.com>
parents: 37666
diff changeset
658 san = cert.get(r'subjectAltName', [])
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
659 for key, value in san:
37872
51a2f8d199c7 sslutil: fix some edge cases in Python 3 support
Augie Fackler <augie@google.com>
parents: 37666
diff changeset
660 if key == r'DNS':
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
661 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
662 if _dnsnamematch(value, hostname):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
663 return
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
664 except wildcarderror as e:
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
665 return stringutil.forcebytestr(e.args[0])
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
666
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
667 dnsnames.append(value)
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
668
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
669 if not dnsnames:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
670 # The subject is only checked when there is no DNS in subjectAltName.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
671 for sub in cert.get(r'subject', []):
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
672 for key, value in sub:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
673 # According to RFC 2818 the most specific Common Name must
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
674 # be used.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
675 if key == r'commonName':
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30228
diff changeset
676 # 'subject' entries are unicode.
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
677 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
678 value = value.encode('ascii')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
679 except UnicodeEncodeError:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
680 return _('IDN in certificate not supported')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
681
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
682 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
683 if _dnsnamematch(value, hostname):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
684 return
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
685 except wildcarderror as e:
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
686 return stringutil.forcebytestr(e.args[0])
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
687
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
688 dnsnames.append(value)
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
689
37872
51a2f8d199c7 sslutil: fix some edge cases in Python 3 support
Augie Fackler <augie@google.com>
parents: 37666
diff changeset
690 dnsnames = [pycompat.bytesurl(d) for d in dnsnames]
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
691 if len(dnsnames) > 1:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
692 return _('certificate is for %s') % ', '.join(dnsnames)
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
693 elif len(dnsnames) == 1:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
694 return _('certificate is for %s') % dnsnames[0]
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
695 else:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
696 return _('no commonName or subjectAltName found in certificate')
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
697
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
698 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
699 """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
700 * 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
701 system
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
702 * 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
703 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
704 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
705 """
37120
a8a902d7176e procutil: bulk-replace function calls to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37084
diff changeset
706 if (not pycompat.isdarwin or procutil.mainfrozen() or
34647
dacfcdd8b94e codemod: use pycompat.isdarwin
Jun Wu <quark@fb.com>
parents: 34645
diff changeset
707 not pycompat.sysexecutable):
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
708 return False
30669
10b17ed9b591 py3: replace sys.executable with pycompat.sysexecutable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30641
diff changeset
709 exe = os.path.realpath(pycompat.sysexecutable).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
710 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
711 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
712
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
713 _systemcacertpaths = [
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
714 # RHEL, CentOS, and Fedora
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
715 '/etc/pki/tls/certs/ca-bundle.trust.crt',
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
716 # Debian, Ubuntu, Gentoo
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
717 '/etc/ssl/certs/ca-certificates.crt',
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
718 ]
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
719
29483
918dce4b8c26 sslutil: pass ui to _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29482
diff changeset
720 def _defaultcacerts(ui):
29488
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
721 """return path to default CA certificates or None.
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
722
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
723 It is assumed this function is called when the returned certificates
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
724 file will actually be used to validate connections. Therefore this
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
725 function may print warnings or debug messages assuming this usage.
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
726
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
727 We don't print a message when the Python is able to load default
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
728 CA certs because this scenario is detected at socket connect time.
29488
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
729 """
30228
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
730 # The "certifi" Python package provides certificates. If it is installed
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
731 # and usable, assume the user intends it to be used and use it.
29486
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
732 try:
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
733 import certifi
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
734 certs = certifi.where()
30228
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
735 if os.path.exists(certs):
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
736 ui.debug('using ca certificates from certifi\n')
42263
ce5f1232631f sslutil: fsencode path returned by certifi (issue6132)
Augie Fackler <augie@google.com>
parents: 41411
diff changeset
737 return pycompat.fsencode(certs)
30228
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
738 except (ImportError, AttributeError):
29486
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
739 pass
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
740
29489
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
741 # On Windows, only the modern ssl module is capable of loading the system
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
742 # CA certificates. If we're not capable of doing that, emit a warning
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
743 # because we'll get a certificate verification error later and the lack
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
744 # of loaded CA certificates will be the reason why.
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
745 # Assertion: this code is only called if certificates are being verified.
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 33494
diff changeset
746 if pycompat.iswindows:
29489
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
747 if not _canloaddefaultcerts:
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
748 ui.warn(_('(unable to load Windows CA certificates; see '
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
749 'https://mercurial-scm.org/wiki/SecureConnections for '
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
750 'how to configure Mercurial to avoid this message)\n'))
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
751
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
752 return None
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
753
29487
cdcb5747dc88 sslutil: document the Apple OpenSSL cert trick
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29486
diff changeset
754 # Apple's OpenSSL has patches that allow a specially constructed certificate
cdcb5747dc88 sslutil: document the Apple OpenSSL cert trick
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29486
diff changeset
755 # to load the system CA store. If we're running on Apple Python, use this
cdcb5747dc88 sslutil: document the Apple OpenSSL cert trick
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29486
diff changeset
756 # trick.
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
757 if _plainapplepython():
31074
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30669
diff changeset
758 dummycert = os.path.join(
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30669
diff changeset
759 os.path.dirname(pycompat.fsencode(__file__)), 'dummycert.pem')
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
760 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
761 return dummycert
29107
c8fbfb9163ce sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29106
diff changeset
762
29499
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
763 # The Apple OpenSSL trick isn't available to us. If Python isn't able to
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
764 # load system certs, we're out of luck.
34647
dacfcdd8b94e codemod: use pycompat.isdarwin
Jun Wu <quark@fb.com>
parents: 34645
diff changeset
765 if pycompat.isdarwin:
29499
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
766 # FUTURE Consider looking for Homebrew or MacPorts installed certs
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
767 # files. Also consider exporting the keychain certs to a file during
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
768 # Mercurial install.
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
769 if not _canloaddefaultcerts:
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
770 ui.warn(_('(unable to load CA certificates; see '
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
771 'https://mercurial-scm.org/wiki/SecureConnections for '
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
772 'how to configure Mercurial to avoid this message)\n'))
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
773 return None
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
774
29537
5f8b36d5a6ec sslutil: add assertion to prevent accidental CA usage on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29508
diff changeset
775 # / is writable on Windows. Out of an abundance of caution make sure
5f8b36d5a6ec sslutil: add assertion to prevent accidental CA usage on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29508
diff changeset
776 # we're not on Windows because paths from _systemcacerts could be installed
5f8b36d5a6ec sslutil: add assertion to prevent accidental CA usage on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29508
diff changeset
777 # by non-admin users.
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 33494
diff changeset
778 assert not pycompat.iswindows
29537
5f8b36d5a6ec sslutil: add assertion to prevent accidental CA usage on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29508
diff changeset
779
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
780 # Try to find CA certificates in well-known locations. We print a warning
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
781 # when using a found file because we don't want too much silent magic
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
782 # for security settings. The expectation is that proper Mercurial
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
783 # installs will have the CA certs path defined at install time and the
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
784 # installer/packager will make an appropriate decision on the user's
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
785 # behalf. We only get here and perform this setting as a feature of
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
786 # last resort.
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
787 if not _canloaddefaultcerts:
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
788 for path in _systemcacertpaths:
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
789 if os.path.isfile(path):
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
790 ui.warn(_('(using CA certificates from %s; if you see this '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
791 'message, your Mercurial install is not properly '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
792 'configured; see '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
793 'https://mercurial-scm.org/wiki/SecureConnections '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
794 'for how to configure Mercurial to avoid this '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
795 'message)\n') % path)
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
796 return path
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
797
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
798 ui.warn(_('(unable to load CA certificates; see '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
799 'https://mercurial-scm.org/wiki/SecureConnections for '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
800 'how to configure Mercurial to avoid this message)\n'))
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
801
29107
c8fbfb9163ce sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29106
diff changeset
802 return None
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
803
29286
a05a91a3f120 sslutil: remove "strict" argument from validatesocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29268
diff changeset
804 def validatesocket(sock):
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30228
diff changeset
805 """Validate a socket meets security requirements.
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
806
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
807 The passed socket must have been created with ``wrapsocket()``.
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
808 """
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
809 shost = sock._hgstate['hostname']
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
810 host = pycompat.bytesurl(shost)
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
811 ui = sock._hgstate['ui']
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
812 settings = sock._hgstate['settings']
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
813
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
814 try:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
815 peercert = sock.getpeercert(True)
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
816 peercert2 = sock.getpeercert()
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
817 except AttributeError:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
818 raise error.Abort(_('%s ssl connection error') % host)
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
819
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
820 if not peercert:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
821 raise error.Abort(_('%s certificate error: '
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
822 'no certificate received') % host)
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
823
29289
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
824 if settings['disablecertverification']:
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
825 # We don't print the certificate fingerprint because it shouldn't
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
826 # be necessary: if the user requested certificate verification be
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
827 # disabled, they presumably already saw a message about the inability
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
828 # to verify the certificate and this message would have printed the
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
829 # fingerprint. So printing the fingerprint here adds little to no
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
830 # value.
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
831 ui.warn(_('warning: connection security to %s is disabled per current '
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
832 'settings; communication is susceptible to eavesdropping '
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
833 'and tampering\n') % host)
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
834 return
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
835
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
836 # If a certificate fingerprint is pinned, use it and only it to
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
837 # validate the remote cert.
29262
dfc4f08aa160 sslutil: calculate host fingerprints from additional algorithms
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29260
diff changeset
838 peerfingerprints = {
35582
72b91f905065 py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35369
diff changeset
839 'sha1': node.hex(hashlib.sha1(peercert).digest()),
72b91f905065 py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35369
diff changeset
840 'sha256': node.hex(hashlib.sha256(peercert).digest()),
72b91f905065 py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35369
diff changeset
841 'sha512': node.hex(hashlib.sha512(peercert).digest()),
29262
dfc4f08aa160 sslutil: calculate host fingerprints from additional algorithms
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29260
diff changeset
842 }
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
843
29290
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
844 def fmtfingerprint(s):
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
845 return ':'.join([s[x:x + 2] for x in range(0, len(s), 2)])
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
846
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
847 nicefingerprint = 'sha256:%s' % fmtfingerprint(peerfingerprints['sha256'])
28850
3819c349b194 sslutil: document and slightly refactor validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28849
diff changeset
848
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
849 if settings['certfingerprints']:
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
850 for hash, fingerprint in settings['certfingerprints']:
29262
dfc4f08aa160 sslutil: calculate host fingerprints from additional algorithms
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29260
diff changeset
851 if peerfingerprints[hash].lower() == fingerprint:
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
852 ui.debug('%s certificate matched fingerprint %s:%s\n' %
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
853 (host, hash, fmtfingerprint(fingerprint)))
31290
f819aa9dbbf9 sslutil: issue warning when [hostfingerprint] is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31074
diff changeset
854 if settings['legacyfingerprint']:
f819aa9dbbf9 sslutil: issue warning when [hostfingerprint] is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31074
diff changeset
855 ui.warn(_('(SHA-1 fingerprint for %s found in legacy '
f819aa9dbbf9 sslutil: issue warning when [hostfingerprint] is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31074
diff changeset
856 '[hostfingerprints] section; '
32273
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
857 'if you trust this fingerprint, remove the old '
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
858 'SHA-1 fingerprint from [hostfingerprints] and '
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
859 'add the following entry to the new '
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
860 '[hostsecurity] section: %s:fingerprints=%s)\n') %
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
861 (host, host, nicefingerprint))
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
862 return
28850
3819c349b194 sslutil: document and slightly refactor validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28849
diff changeset
863
29293
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
864 # Pinned fingerprint didn't match. This is a fatal error.
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
865 if settings['legacyfingerprint']:
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
866 section = 'hostfingerprint'
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
867 nice = fmtfingerprint(peerfingerprints['sha1'])
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
868 else:
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
869 section = 'hostsecurity'
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
870 nice = '%s:%s' % (hash, fmtfingerprint(peerfingerprints[hash]))
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
871 raise error.Abort(_('certificate for %s has unexpected '
29293
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
872 'fingerprint %s') % (host, nice),
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
873 hint=_('check %s configuration') % section)
28850
3819c349b194 sslutil: document and slightly refactor validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28849
diff changeset
874
29411
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
875 # Security is enabled but no CAs are loaded. We can't establish trust
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
876 # for the cert so abort.
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
877 if not sock._hgstate['caloaded']:
29411
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
878 raise error.Abort(
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
879 _('unable to verify security of %s (no loaded CA certificates); '
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
880 'refusing to connect') % host,
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
881 hint=_('see https://mercurial-scm.org/wiki/SecureConnections for '
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
882 'how to configure Mercurial to avoid this error or set '
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
883 'hostsecurity.%s:fingerprints=%s to trust this server') %
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
884 (host, nicefingerprint))
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
885
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
886 msg = _verifycert(peercert2, shost)
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
887 if msg:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
888 raise error.Abort(_('%s certificate error: %s') % (host, msg),
29292
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
889 hint=_('set hostsecurity.%s:certfingerprints=%s '
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
890 'config setting or use --insecure to connect '
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
891 'insecurely') %
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
892 (host, nicefingerprint))