annotate mercurial/sslutil.py @ 39583:ee1e74ee037c

formatter: fill missing resources by formatter, not by resource mapper While working on demand loading of ctx/fctx objects, I found it's weird to support lookup in both directions. For instance, fctx can be loaded from (ctx, path) pair, but ctx may also be derived from fctx.changectx() in the original mapping. If the original mapping has had fctx but no ctx, and if the new mapping provides {path}, we can't be sure if fctx should be updated by fctx'.changectx()[path] or not. This patch simply drops the support for the resolution in fctx -> ctx -> repo direction.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 01 Sep 2018 13:21:45 +0900
parents 67dc32d4e790
children 0d226b2139df
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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 error,
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20 node,
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21 pycompat,
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22 util,
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23 )
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24 from .utils import (
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25 procutil,
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26 stringutil,
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27 )
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28
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29 # Python 2.7.9+ overhauled the built-in SSL/TLS features of Python. It added
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30 # support for TLS 1.1, TLS 1.2, SNI, system CA stores, etc. These features are
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31 # all exposed via the "ssl" module.
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32 #
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33 # Depending on the version of Python being used, SSL/TLS support is either
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34 # modern/secure or legacy/insecure. Many operations in this module have
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35 # separate code paths depending on support in Python.
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36
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37 configprotocols = {
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38 'tls1.0',
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39 'tls1.1',
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40 'tls1.2',
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41 }
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42
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43 hassni = getattr(ssl, 'HAS_SNI', False)
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44
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45 # TLS 1.1 and 1.2 may not be supported if the OpenSSL Python is compiled
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46 # against doesn't support them.
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47 supportedprotocols = {'tls1.0'}
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48 if util.safehasattr(ssl, 'PROTOCOL_TLSv1_1'):
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49 supportedprotocols.add('tls1.1')
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50 if util.safehasattr(ssl, 'PROTOCOL_TLSv1_2'):
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51 supportedprotocols.add('tls1.2')
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52
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53 try:
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54 # ssl.SSLContext was added in 2.7.9 and presence indicates modern
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55 # SSL/TLS features are available.
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56 SSLContext = ssl.SSLContext
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57 modernssl = True
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58 _canloaddefaultcerts = util.safehasattr(SSLContext, 'load_default_certs')
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59 except AttributeError:
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60 modernssl = False
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61 _canloaddefaultcerts = False
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62
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63 # We implement SSLContext using the interface from the standard library.
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64 class SSLContext(object):
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65 def __init__(self, protocol):
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66 # From the public interface of SSLContext
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67 self.protocol = protocol
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68 self.check_hostname = False
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69 self.options = 0
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70 self.verify_mode = ssl.CERT_NONE
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71
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72 # Used by our implementation.
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73 self._certfile = None
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74 self._keyfile = None
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75 self._certpassword = None
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76 self._cacerts = None
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77 self._ciphers = None
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78
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79 def load_cert_chain(self, certfile, keyfile=None, password=None):
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80 self._certfile = certfile
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81 self._keyfile = keyfile
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82 self._certpassword = password
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83
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84 def load_default_certs(self, purpose=None):
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85 pass
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86
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87 def load_verify_locations(self, cafile=None, capath=None, cadata=None):
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88 if capath:
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89 raise error.Abort(_('capath not supported'))
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90 if cadata:
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91 raise error.Abort(_('cadata not supported'))
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92
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93 self._cacerts = cafile
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94
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95 def set_ciphers(self, ciphers):
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96 self._ciphers = ciphers
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97
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98 def wrap_socket(self, socket, server_hostname=None, server_side=False):
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99 # server_hostname is unique to SSLContext.wrap_socket and is used
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100 # for SNI in that context. So there's nothing for us to do with it
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101 # in this legacy code since we don't support SNI.
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102
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103 args = {
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104 r'keyfile': self._keyfile,
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105 r'certfile': self._certfile,
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106 r'server_side': server_side,
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107 r'cert_reqs': self.verify_mode,
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108 r'ssl_version': self.protocol,
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109 r'ca_certs': self._cacerts,
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110 r'ciphers': self._ciphers,
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111 }
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112
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113 return ssl.wrap_socket(socket, **args)
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114
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115 def _hostsettings(ui, hostname):
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116 """Obtain security settings for a hostname.
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117
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118 Returns a dict of settings relevant to that hostname.
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119 """
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120 bhostname = pycompat.bytesurl(hostname)
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121 s = {
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122 # Whether we should attempt to load default/available CA certs
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123 # if an explicit ``cafile`` is not defined.
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124 'allowloaddefaultcerts': True,
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125 # List of 2-tuple of (hash algorithm, hash).
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126 'certfingerprints': [],
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127 # Path to file containing concatenated CA certs. Used by
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128 # SSLContext.load_verify_locations().
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129 'cafile': None,
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130 # Whether certificate verification should be disabled.
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131 'disablecertverification': False,
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132 # Whether the legacy [hostfingerprints] section has data for this host.
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133 'legacyfingerprint': False,
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
134 # PROTOCOL_* constant to use for SSLContext.__init__.
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
135 'protocol': None,
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
136 # 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
137 # presentation.
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
138 'protocolui': None,
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
139 # 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
140 'verifymode': None,
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
141 # 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
142 'ctxoptions': None,
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
143 # OpenSSL Cipher List to use (instead of default).
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
144 'ciphers': None,
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
145 }
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
146
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
147 # 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
148 def validateprotocol(protocol, key):
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
149 if protocol not in configprotocols:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
150 raise error.Abort(
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
151 _('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
152 (key, protocol),
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
153 hint=_('valid protocols: %s') %
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
154 ' '.join(sorted(configprotocols)))
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
155
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
156 # 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
157 # 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
158 # 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
159 if 'tls1.1' in supportedprotocols:
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
160 defaultprotocol = 'tls1.1'
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
161 else:
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
162 # 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
163 # 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
164 # 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
165 # 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
166 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
167 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
168 '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
169 'https://mercurial-scm.org/wiki/SecureConnections for '
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
170 'more info\n') % bhostname)
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
171 defaultprotocol = 'tls1.0'
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
172
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
173 key = 'minimumprotocol'
29560
303e9300772a sslutil: require TLS 1.1+ when supported
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29559
diff changeset
174 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
175 validateprotocol(protocol, key)
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
176
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
177 key = '%s:minimumprotocol' % bhostname
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
178 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
179 validateprotocol(protocol, key)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
180
29617
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
181 # 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
182 # 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
183 # --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
184 if ui.insecureconnections:
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
185 protocol = 'tls1.0'
2960ceee1948 sslutil: allow TLS 1.0 when --insecure is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29601
diff changeset
186
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
187 s['protocol'], s['ctxoptions'], s['protocolui'] = protocolsettings(protocol)
29558
a935cd7d51a6 sslutil: prevent CRIME
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29557
diff changeset
188
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
189 ciphers = ui.config('hostsecurity', 'ciphers')
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
190 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
191 s['ciphers'] = ciphers
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
192
29267
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
193 # 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
194 # of <alg>:<fingerprint> strings.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
195 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
196 for fingerprint in fingerprints:
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
197 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
198 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
199 bhostname, fingerprint),
29267
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
200 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
201 'or "sha512:"'))
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
202
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
203 alg, fingerprint = fingerprint.split(':', 1)
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
204 fingerprint = fingerprint.replace(':', '').lower()
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
205 s['certfingerprints'].append((alg, fingerprint))
f0ccb6cde3e5 sslutil: allow fingerprints to be specified in [hostsecurity]
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29262
diff changeset
206
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
207 # Fingerprints from [hostfingerprints] are always SHA-1.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
208 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
209 fingerprint = fingerprint.replace(':', '').lower()
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
210 s['certfingerprints'].append(('sha1', fingerprint))
29268
f200b58497f1 sslutil: reference appropriate config section in messaging
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29267
diff changeset
211 s['legacyfingerprint'] = True
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
212
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
213 # 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
214 # 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
215 if s['certfingerprints']:
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
216 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
217 s['allowloaddefaultcerts'] = False
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
218
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
219 # 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
220 elif ui.insecureconnections:
29287
fbccb334efe7 sslutil: store flag for whether cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29286
diff changeset
221 s['disablecertverification'] = True
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
222 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
223 s['allowloaddefaultcerts'] = False
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
224
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
225 if ui.configbool('devel', 'disableloaddefaultcerts'):
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
226 s['allowloaddefaultcerts'] = False
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
227
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
228 # 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
229 # 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
230 # being performed.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
231 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
232 if s['certfingerprints'] and cafile:
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
233 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
234 'fingerprints defined; using host fingerprints for '
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
235 'verification)\n') % bhostname)
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
236
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
237 # 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
238 # makes it not necessary.
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
239 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
240 # 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
241 if cafile:
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
242 cafile = util.expandpath(cafile)
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
243 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
244 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
245 ('hostsecurity.%s:verifycertsfile' % (
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
246 bhostname,), cafile))
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
247 s['cafile'] = cafile
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
248 else:
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
249 # 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
250 cafile = ui.config('web', 'cacerts')
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
251
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
252 if cafile:
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
253 cafile = util.expandpath(cafile)
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
254 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
255 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
256 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
257 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
258 # 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
259 cafile = _defaultcacerts(ui)
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
260 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
261 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
262
29334
ecc9b788fd69 sslutil: per-host config option to define certificates
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29293
diff changeset
263 s['cafile'] = cafile
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
264
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
265 # 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
266 # 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
267 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
268 s['verifymode'] = ssl.CERT_REQUIRED
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
269 else:
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
270 # 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
271 # 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
272 # 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
273 # 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
274 # user).
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
275 s['verifymode'] = ssl.CERT_NONE
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
276
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
277 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
278 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
279 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
280
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
281 return s
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
282
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
283 def protocolsettings(protocol):
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
284 """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
285
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
286 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
287 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
288 of the ``minimumprotocol`` config option equivalent.
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
289 """
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
290 if protocol not in configprotocols:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
291 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
292
29578
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
293 # 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
294 # 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
295 # 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
296 # support TLS 1.2.
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
297 #
4a4b8d3b4e43 sslutil: move comment about protocol constants
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29577
diff changeset
298 # 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
299 # 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
300 # 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
301 # 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
302 # 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
303 # full/real SSLContext available to us.
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32273
diff changeset
304 if supportedprotocols == {'tls1.0'}:
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
305 if protocol != 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
306 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
307 'setting %s') % protocol,
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
308 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
309 '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
310
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
311 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
312
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
313 # 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
314 # 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
315
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
316 # 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
317 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
318
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
319 if protocol == 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
320 # 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
321 pass
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
322 elif protocol == 'tls1.1':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
323 options |= ssl.OP_NO_TLSv1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
324 elif protocol == 'tls1.2':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
325 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
326 else:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
327 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
328
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
329 # Prevent CRIME.
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
330 # 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
331 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
332
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
333 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
334
29249
cca59ef27e60 sslutil: move sslkwargs logic into internal function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29248
diff changeset
335 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
336 """Add SSL/TLS to a socket.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
337
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
338 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
339 choices based on what security options are available.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
340
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
341 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
342 the following additional arguments:
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
343
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
344 * 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
345 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
346 to use.
1eb0bd8adf39 sslutil: add docstring to wrapsocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28652
diff changeset
347 """
29224
7424f4294199 sslutil: require serverhostname argument (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29115
diff changeset
348 if not serverhostname:
29389
98e8313dcd9e i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents: 29341
diff changeset
349 raise error.Abort(_('serverhostname argument is required'))
29224
7424f4294199 sslutil: require serverhostname argument (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29115
diff changeset
350
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
351 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
352 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
353 raise error.Abort(
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
354 _('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
355 % (f, pycompat.bytesurl(serverhostname)),
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
356 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
357 'in Mercurial config'))
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
358
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
359 settings = _hostsettings(ui, serverhostname)
29249
cca59ef27e60 sslutil: move sslkwargs logic into internal function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29248
diff changeset
360
29557
53de8255ec4e sslutil: update comment about create_default_context()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29554
diff changeset
361 # 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
362 # 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
363 # 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
364 # 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
365 # 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
366 # 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
367 # choice.
29507
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
368 sslcontext = SSLContext(settings['protocol'])
97dcdcf75f4f sslutil: move protocol determination to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29501
diff changeset
369
29508
d65ec41b6384 sslutil: move context options flags to _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29507
diff changeset
370 # 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
371 sslcontext.options |= settings['ctxoptions']
28651
4827d07073e6 sslutil: always use SSLContext
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28650
diff changeset
372
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
373 # 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
374 sslcontext.verify_mode = settings['verifymode']
28848
e330db205b20 sslutil: move and document verify_mode assignment
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28653
diff changeset
375
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
376 if settings['ciphers']:
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
377 try:
36746
25798cf7dc9d sslutil: sslcontext needs the cipher name as a sysstr
Augie Fackler <augie@google.com>
parents: 36745
diff changeset
378 sslcontext.set_ciphers(pycompat.sysstr(settings['ciphers']))
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
379 except ssl.SSLError as e:
36747
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
380 raise error.Abort(
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36747
diff changeset
381 _('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
382 % stringutil.forcebytestr(e.args[0]),
36747
4c71a26a4009 sslutil: some more forcebytes() on some exception messages
Augie Fackler <augie@google.com>
parents: 36746
diff changeset
383 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
384 settings['ciphers'])
29577
9654ef41f7cc sslutil: support defining cipher list
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29561
diff changeset
385
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
386 if certfile is not None:
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
387 def password():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
388 f = keyfile or certfile
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
389 return ui.getpass(_('passphrase for %s: ') % f, '')
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
390 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
391
29260
70bc9912d83d sslutil: move CA file processing into _hostsettings()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29259
diff changeset
392 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
393 try:
2f7f1e10f840 sslutil: display a better error message when CA file loading fails
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29411
diff changeset
394 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
395 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
396 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
397 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
398 else:
799e36749f1a ssl: handle a difference in SSLError with pypy (issue5348)
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29631
diff changeset
399 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
400 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
401 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
402 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
403 caloaded = True
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
404 elif settings['allowloaddefaultcerts']:
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
405 # 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
406 sslcontext.load_default_certs()
29288
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
407 caloaded = True
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
408 else:
7dee15dee53c sslutil: add devel.disableloaddefaultcerts to disable CA loading
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29287
diff changeset
409 caloaded = False
23834
bf07c19b4c82 https: support tls sni (server name indication) for https urls (issue3090)
Alex Orange <crazycasta@gmail.com>
parents: 23069
diff changeset
410
29449
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
411 try:
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
412 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
413 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
414 # 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
415 # 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
416 # a hint to the user.
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
417 # 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
418 # 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
419 # 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
420 # https://bugs.python.org/issue20916#msg213479. (See issues5313.)
c777b12cdc9b sslutil: clarify internal documentation
Matt Harbison <matt_harbison@yahoo.com>
parents: 31290
diff changeset
421 # 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
422 # 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
423 try:
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
424 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
425 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
426 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
427 '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
428 '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
429 '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
430 'error)\n'))
387bdd53c77e sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29619
diff changeset
431 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
432 pass
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
433 # 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
434 if util.safehasattr(e, 'reason'):
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
435 # 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
436 # 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
437 # 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
438 # 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
439 # reason, try to emit an actionable warning.
29559
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
440 if e.reason == 'UNSUPPORTED_PROTOCOL':
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
441 # We attempted TLS 1.0+.
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
442 if settings['protocolui'] == 'tls1.0':
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
443 # 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
444 # 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
445 # 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
446 # 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
447 # several years from when this comment was written).
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32273
diff changeset
448 if supportedprotocols != {'tls1.0'}:
29619
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
449 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
450 '(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
451 '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
452 '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
453 'server; see '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
454 'https://mercurial-scm.org/wiki/SecureConnections '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
455 'for more info)\n') % (
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
456 serverhostname,
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
457 ', '.join(sorted(supportedprotocols))))
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
458 else:
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
459 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
460 '(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
461 '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
462 '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
463 'vulnerabilities; see '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
464 'https://mercurial-scm.org/wiki/SecureConnections '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
465 'for more info)\n') % serverhostname)
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
466 else:
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
467 # 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
468 # 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
469 # 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
470 # offer.
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
471 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
472 '(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
473 '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
474 'to be more secure than the server can support)\n') % (
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
475 settings['protocolui'], serverhostname))
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
476 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
477 '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
478 'protocol versions; or, set '
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
479 '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
480 '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
481 'communicating with this server)\n') %
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
482 serverhostname)
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
483 ui.warn(_(
53e80179bd6a sslutil: improve messaging around unsupported protocols (issue5303)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29618
diff changeset
484 '(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
485 '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
486
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
487 elif (e.reason == 'CERTIFICATE_VERIFY_FAILED' and
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 33494
diff changeset
488 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
489
30f2715be123 sslutil: inform the user about how to fix an incomplete certificate chain
Matt Harbison <matt_harbison@yahoo.com>
parents: 33381
diff changeset
490 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
491 '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
492 raise
5b71a8d7f7ff sslutil: emit warning when no CA certificates loaded
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29447
diff changeset
493
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
494 # 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
495 # closed
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
496 # - see http://bugs.python.org/issue13721
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
497 if not sslsocket.cipher():
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
498 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
499
29225
b115eed11780 sslutil: use a dict for hanging hg state off the wrapped socket
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29224
diff changeset
500 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
501 'caloaded': caloaded,
29226
33006bd6a1d7 sslutil: store and use hostname and ui in socket instance
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29225
diff changeset
502 'hostname': serverhostname,
29259
ec247e8595f9 sslutil: move SSLContext.verify_mode value into _hostsettings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29258
diff changeset
503 'settings': settings,
29226
33006bd6a1d7 sslutil: store and use hostname and ui in socket instance
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29225
diff changeset
504 '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
505 }
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
506
28652
c617614aefd2 sslutil: remove indentation in wrapsocket declaration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28651
diff changeset
507 return sslsocket
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
508
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
509 def wrapserversocket(sock, ui, certfile=None, keyfile=None, cafile=None,
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
510 requireclientcert=False):
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
511 """Wrap a socket for use by servers.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
512
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
513 ``certfile`` and ``keyfile`` specify the files containing the certificate's
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
514 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
515 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
516
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
517 ``cafile`` defines the path to certificate authorities.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
518
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
519 ``requireclientcert`` specifies whether to require client certificates.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
520
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
521 Typically ``cafile`` is only defined if ``requireclientcert`` is true.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
522 """
33381
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
523 # 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
524 # 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
525 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
526 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
527 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
528 'exist') % f)
3bdbbadddecc sslutil: check for missing certificate and key files (issue5598)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32291
diff changeset
529
29618
fbf4adc0d8f2 sslutil: capture string string representation of protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29617
diff changeset
530 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
531
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
532 # 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
533 # 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
534 exactprotocol = ui.config('devel', 'serverexactprotocol')
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
535 if exactprotocol == 'tls1.0':
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
536 protocol = ssl.PROTOCOL_TLSv1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
537 elif exactprotocol == 'tls1.1':
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
538 if 'tls1.1' not in supportedprotocols:
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
539 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
540 protocol = ssl.PROTOCOL_TLSv1_1
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
541 elif exactprotocol == 'tls1.2':
29601
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
542 if 'tls1.2' not in supportedprotocols:
6cff2ac0ccb9 sslutil: more robustly detect protocol support
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29578
diff changeset
543 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
544 protocol = ssl.PROTOCOL_TLSv1_2
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
545 elif exactprotocol:
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
546 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
547 exactprotocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
548
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
549 if modernssl:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
550 # 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
551 # 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
552 # 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
553 sslcontext = SSLContext(protocol)
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
554 sslcontext.options |= options
7dec5e441bf7 sslutil: config option to specify TLS protocol version
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29558
diff changeset
555
29554
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
556 # Improve forward secrecy.
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
557 sslcontext.options |= getattr(ssl, 'OP_SINGLE_DH_USE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
558 sslcontext.options |= getattr(ssl, 'OP_SINGLE_ECDH_USE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
559
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
560 # 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
561 if util.safehasattr(ssl, '_RESTRICTED_SERVER_CIPHERS'):
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
562 sslcontext.options |= getattr(ssl, 'OP_CIPHER_SERVER_PREFERENCE', 0)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
563 sslcontext.set_ciphers(ssl._RESTRICTED_SERVER_CIPHERS)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
564 else:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
565 sslcontext = SSLContext(ssl.PROTOCOL_TLSv1)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
566
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
567 if requireclientcert:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
568 sslcontext.verify_mode = ssl.CERT_REQUIRED
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
569 else:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
570 sslcontext.verify_mode = ssl.CERT_NONE
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
571
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
572 if certfile or keyfile:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
573 sslcontext.load_cert_chain(certfile=certfile, keyfile=keyfile)
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 if cafile:
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
576 sslcontext.load_verify_locations(cafile=cafile)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
577
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
578 return sslcontext.wrap_socket(sock, server_side=True)
4a7b0c696fbc sslutil: implement wrapserversocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29537
diff changeset
579
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
580 class wildcarderror(Exception):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
581 """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
582
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
583 def _dnsnamematch(dn, hostname, maxwildcards=1):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
584 """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
585
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
586 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
587
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
588 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
589 the value in ``dn``.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
590 """
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
591 pats = []
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
592 if not dn:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
593 return False
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
594 dn = pycompat.bytesurl(dn)
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
595 hostname = pycompat.bytesurl(hostname)
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
596
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
597 pieces = dn.split('.')
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
598 leftmost = pieces[0]
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
599 remainder = pieces[1:]
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
600 wildcards = leftmost.count('*')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
601 if wildcards > maxwildcards:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
602 raise wildcarderror(
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
603 _('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
604
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
605 # 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
606 if not wildcards:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
607 return dn.lower() == hostname.lower()
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
608
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
609 # 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
610 # 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
611 # 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
612 if leftmost == '*':
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
613 # 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
614 # fragment.
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
615 pats.append('[^.]+')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
616 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
617 # 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
618 # 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
619 # 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
620 # 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
621 pats.append(stringutil.reescape(leftmost))
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
622 else:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
623 # 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
624 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
625
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
626 # 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
627 for frag in remainder:
38475
67dc32d4e790 cleanup: migrate from re.escape to stringutil.reescape
Augie Fackler <augie@google.com>
parents: 37872
diff changeset
628 pats.append(stringutil.reescape(frag))
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
629
37666
46e705b79323 py3: add b'' prefixes to make values bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 37120
diff changeset
630 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
631 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
632
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
633 def _verifycert(cert, hostname):
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
634 '''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
635 CRLs is not handled.
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
636
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
637 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
638 '''
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
639 if not cert:
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
640 return _('no certificate received')
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
641
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
642 dnsnames = []
37872
51a2f8d199c7 sslutil: fix some edge cases in Python 3 support
Augie Fackler <augie@google.com>
parents: 37666
diff changeset
643 san = cert.get(r'subjectAltName', [])
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
644 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
645 if key == r'DNS':
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
646 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
647 if _dnsnamematch(value, hostname):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
648 return
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
649 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
650 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
651
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
652 dnsnames.append(value)
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
653
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
654 if not dnsnames:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
655 # 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
656 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
657 for key, value in sub:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
658 # 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
659 # be used.
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
660 if key == r'commonName':
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30228
diff changeset
661 # 'subject' entries are unicode.
29452
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
662 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
663 value = value.encode('ascii')
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
664 except UnicodeEncodeError:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
665 return _('IDN in certificate not supported')
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 try:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
668 if _dnsnamematch(value, hostname):
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
669 return
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
670 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
671 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
672
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
673 dnsnames.append(value)
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
674
37872
51a2f8d199c7 sslutil: fix some edge cases in Python 3 support
Augie Fackler <augie@google.com>
parents: 37666
diff changeset
675 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
676 if len(dnsnames) > 1:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
677 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
678 elif len(dnsnames) == 1:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
679 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
680 else:
26a5d605b868 sslutil: synchronize hostname matching logic with CPython
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29042
diff changeset
681 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
682
23042
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
683 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
684 """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
685 * 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
686 system
2cd3fa4412dc ssl: only use the dummy cert hack if using an Apple Python (issue4410)
Mads Kiilerich <madski@unity3d.com>
parents: 22575
diff changeset
687 * 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
688 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
689 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
690 """
37120
a8a902d7176e procutil: bulk-replace function calls to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37084
diff changeset
691 if (not pycompat.isdarwin or procutil.mainfrozen() or
34647
dacfcdd8b94e codemod: use pycompat.isdarwin
Jun Wu <quark@fb.com>
parents: 34645
diff changeset
692 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
693 return False
30669
10b17ed9b591 py3: replace sys.executable with pycompat.sysexecutable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30641
diff changeset
694 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
695 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
696 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
697
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
698 _systemcacertpaths = [
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
699 # 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
700 '/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
701 # Debian, Ubuntu, Gentoo
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
702 '/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
703 ]
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
704
29483
918dce4b8c26 sslutil: pass ui to _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29482
diff changeset
705 def _defaultcacerts(ui):
29488
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
706 """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
707
1c26b9ce66f8 sslutil: expand _defaultcacerts docstring to note calling assumptions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29487
diff changeset
708 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
709 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
710 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
711
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
712 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
713 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
714 """
30228
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
715 # 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
716 # 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
717 try:
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
718 import certifi
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
719 certs = certifi.where()
30228
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
720 if os.path.exists(certs):
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
721 ui.debug('using ca certificates from certifi\n')
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
722 return certs
b9f7b0c10027 sslutil: guard against broken certifi installations (issue5406)
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 29927
diff changeset
723 except (ImportError, AttributeError):
29486
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
724 pass
a62c00f6dd04 sslutil: use certificates provided by certifi if available
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29484
diff changeset
725
29489
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
726 # 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
727 # 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
728 # 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
729 # 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
730 # 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
731 if pycompat.iswindows:
29489
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
732 if not _canloaddefaultcerts:
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
733 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
734 '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
735 '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
736
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
737 return None
54ad81b0665f sslutil: handle default CA certificate loading on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29488
diff changeset
738
29487
cdcb5747dc88 sslutil: document the Apple OpenSSL cert trick
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29486
diff changeset
739 # 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
740 # 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
741 # trick.
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
742 if _plainapplepython():
31074
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30669
diff changeset
743 dummycert = os.path.join(
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30669
diff changeset
744 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
745 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
746 return dummycert
29107
c8fbfb9163ce sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29106
diff changeset
747
29499
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
748 # 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
749 # load system certs, we're out of luck.
34647
dacfcdd8b94e codemod: use pycompat.isdarwin
Jun Wu <quark@fb.com>
parents: 34645
diff changeset
750 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
751 # 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
752 # 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
753 # Mercurial install.
9c5325c79683 sslutil: issue warning when unable to load certificates on OS X
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29489
diff changeset
754 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
755 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
756 '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
757 '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
758 return None
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
759
29537
5f8b36d5a6ec sslutil: add assertion to prevent accidental CA usage on Windows
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29508
diff changeset
760 # / 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
761 # 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
762 # by non-admin users.
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 33494
diff changeset
763 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
764
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
765 # 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
766 # 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
767 # 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
768 # 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
769 # 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
770 # 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
771 # last resort.
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
772 if not _canloaddefaultcerts:
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
773 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
774 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
775 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
776 '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
777 'configured; see '
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
778 '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
779 '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
780 'message)\n') % path)
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
781 return path
14204
5fa21960b2f4 sslutil: extracted ssl methods from httpsconnection in url.py
Augie Fackler <durin42@gmail.com>
parents:
diff changeset
782
29500
4b16a5bd9948 sslutil: try to find CA certficates in well-known locations
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29499
diff changeset
783 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
784 '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
785 '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
786
29107
c8fbfb9163ce sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29106
diff changeset
787 return None
24288
922e087ba158 ssl: extract function that returns dummycert path on Apple python
Yuya Nishihara <yuya@tcha.org>
parents: 23851
diff changeset
788
29286
a05a91a3f120 sslutil: remove "strict" argument from validatesocket()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29268
diff changeset
789 def validatesocket(sock):
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30228
diff changeset
790 """Validate a socket meets security requirements.
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
791
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
792 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
793 """
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
794 shost = sock._hgstate['hostname']
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
795 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
796 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
797 settings = sock._hgstate['settings']
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
798
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
799 try:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
800 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
801 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
802 except AttributeError:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
803 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
804
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
805 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
806 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
807 'no certificate received') % host)
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
808
29289
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
809 if settings['disablecertverification']:
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
810 # 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
811 # 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
812 # 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
813 # 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
814 # 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
815 # value.
3536673a25ae sslutil: move and change warning when cert verification is disabled
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29288
diff changeset
816 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
817 '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
818 '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
819 return
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
820
29227
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
821 # 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
822 # validate the remote cert.
29262
dfc4f08aa160 sslutil: calculate host fingerprints from additional algorithms
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29260
diff changeset
823 peerfingerprints = {
35582
72b91f905065 py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35369
diff changeset
824 '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
825 '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
826 '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
827 }
18879
93b03a222c3e sslutil: try harder to avoid getpeercert problems
Matt Mackall <mpm@selenic.com>
parents: 16391
diff changeset
828
29290
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
829 def fmtfingerprint(s):
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
830 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
831
01248c37a68e sslutil: print SHA-256 fingerprint by default
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29289
diff changeset
832 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
833
29258
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
834 if settings['certfingerprints']:
6315c1e14f75 sslutil: introduce a function for determining host-specific settings
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29253
diff changeset
835 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
836 if peerfingerprints[hash].lower() == fingerprint:
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
837 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
838 (host, hash, fmtfingerprint(fingerprint)))
31290
f819aa9dbbf9 sslutil: issue warning when [hostfingerprint] is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31074
diff changeset
839 if settings['legacyfingerprint']:
f819aa9dbbf9 sslutil: issue warning when [hostfingerprint] is used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31074
diff changeset
840 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
841 '[hostfingerprints] section; '
32273
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
842 '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
843 'SHA-1 fingerprint from [hostfingerprints] and '
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
844 '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
845 '[hostsecurity] section: %s:fingerprints=%s)\n') %
2e455cbeac50 sslutil: tweak the legacy [hostfingerprints] warning message
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32247
diff changeset
846 (host, host, nicefingerprint))
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
847 return
28850
3819c349b194 sslutil: document and slightly refactor validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28849
diff changeset
848
29293
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
849 # 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
850 if settings['legacyfingerprint']:
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
851 section = 'hostfingerprint'
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
852 nice = fmtfingerprint(peerfingerprints['sha1'])
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
853 else:
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
854 section = 'hostsecurity'
1b3a0b0c414f sslutil: print the fingerprint from the last hash used
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29292
diff changeset
855 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
856 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
857 'fingerprint %s') % (host, nice),
29291
15e533b7909c sslutil: refactor code for fingerprint matching
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29290
diff changeset
858 hint=_('check %s configuration') % section)
28850
3819c349b194 sslutil: document and slightly refactor validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28849
diff changeset
859
29411
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
860 # 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
861 # 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
862 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
863 raise error.Abort(
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
864 _('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
865 'refusing to connect') % host,
e1778b9c8d53 sslutil: abort when unable to verify peer connection (BC)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29410
diff changeset
866 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
867 '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
868 '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
869 (host, nicefingerprint))
29113
5b9577edf745 sslutil: use CA loaded state to drive validation logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29112
diff changeset
870
36745
424994a0adfd sslutil: lots of unicode/bytes cleanup
Augie Fackler <augie@google.com>
parents: 35582
diff changeset
871 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
872 if msg:
dffe78d80a6c sslutil: convert socket validation from a class to a function (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29226
diff changeset
873 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
874 hint=_('set hostsecurity.%s:certfingerprints=%s '
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
875 '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
876 'insecurely') %
bc5f55493397 sslutil: make cert fingerprints messages more actionable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29291
diff changeset
877 (host, nicefingerprint))