Annotate

util/x509.lua @ 13054:f4d7fe919969

util.human.io: Add parse_duration() method to parse a duration string Similar logic occurs throughout various modules in the codebase. We might even want a module:get_option_duration()??
author Matthew Wild <mwild1@gmail.com>
date Fri, 07 Apr 2023 14:14:53 +0100
parent 12975:d10957394a3c
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1 -- Prosody IM
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2 -- Copyright (C) 2010 Matthew Wild
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3 -- Copyright (C) 2010 Paul Aurich
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 -- TODO: I feel a fair amount of this logic should be integrated into Luasec,
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10 -- so that everyone isn't re-inventing the wheel. Dependencies on
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11 -- IDN libraries complicate that.
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12
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13
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14 -- [TLS-CERTS] - https://www.rfc-editor.org/rfc/rfc6125.html
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15 -- [XMPP-CORE] - https://www.rfc-editor.org/rfc/rfc6120.html
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16 -- [SRV-ID] - https://www.rfc-editor.org/rfc/rfc4985.html
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17 -- [IDNA] - https://www.rfc-editor.org/rfc/rfc5890.html
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18 -- [LDAP] - https://www.rfc-editor.org/rfc/rfc4519.html
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19 -- [PKIX] - https://www.rfc-editor.org/rfc/rfc5280.html
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20
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21 local nameprep = require "prosody.util.encodings".stringprep.nameprep;
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22 local idna_to_ascii = require "prosody.util.encodings".idna.to_ascii;
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23 local idna_to_unicode = require "prosody.util.encodings".idna.to_unicode;
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24 local base64 = require "prosody.util.encodings".base64;
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25 local log = require "prosody.util.logger".init("x509");
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26 local mt = require "prosody.util.multitable";
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27 local s_format = string.format;
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28 local ipairs = ipairs;
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29
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30 local _ENV = nil;
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31 -- luacheck: std none
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32
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33 local oid_commonname = "2.5.4.3"; -- [LDAP] 2.3
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34 local oid_subjectaltname = "2.5.29.17"; -- [PKIX] 4.2.1.6
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35 local oid_xmppaddr = "1.3.6.1.5.5.7.8.5"; -- [XMPP-CORE]
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36 local oid_dnssrv = "1.3.6.1.5.5.7.8.7"; -- [SRV-ID]
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37
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38 -- Compare a hostname (possibly international) with asserted names
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39 -- extracted from a certificate.
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40 -- This function follows the rules laid out in
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41 -- sections 6.4.1 and 6.4.2 of [TLS-CERTS]
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42 --
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43 -- A wildcard ("*") all by itself is allowed only as the left-most label
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44 local function compare_dnsname(host, asserted_names)
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45 -- TODO: Sufficient normalization? Review relevant specs.
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46 local norm_host = idna_to_ascii(host)
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47 if norm_host == nil then
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48 log("info", "Host %s failed IDNA ToASCII operation", host)
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49 return false
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50 end
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51
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52 norm_host = norm_host:lower()
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53
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54 local host_chopped = norm_host:gsub("^[^.]+%.", "") -- everything after the first label
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55
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56 for i=1,#asserted_names do
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57 local name = asserted_names[i]
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58 if norm_host == name:lower() then
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59 log("debug", "Cert dNSName %s matched hostname", name);
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60 return true
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61 end
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62
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63 -- Allow the left most label to be a "*"
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64 if name:match("^%*%.") then
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65 local rest_name = name:gsub("^[^.]+%.", "")
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66 if host_chopped == rest_name:lower() then
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67 log("debug", "Cert dNSName %s matched hostname", name);
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68 return true
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69 end
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70 end
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71 end
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72
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73 return false
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74 end
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75
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76 -- Compare an XMPP domain name with the asserted id-on-xmppAddr
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77 -- identities extracted from a certificate. Both are UTF8 strings.
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78 --
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79 -- Per [XMPP-CORE], matches against asserted identities don't include
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80 -- wildcards, so we just do a normalize on both and then a string comparison
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81 --
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82 -- TODO: Support for full JIDs?
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83 local function compare_xmppaddr(host, asserted_names)
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84 local norm_host = nameprep(host)
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85
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86 for i=1,#asserted_names do
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87 local name = asserted_names[i]
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88
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89 -- We only want to match against bare domains right now, not
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90 -- those crazy full-er JIDs.
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91 if name:match("[@/]") then
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92 log("debug", "Ignoring xmppAddr %s because it's not a bare domain", name)
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93 else
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94 local norm_name = nameprep(name)
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95 if norm_name == nil then
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96 log("info", "Ignoring xmppAddr %s, failed nameprep!", name)
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97 else
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98 if norm_host == norm_name then
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99 log("debug", "Cert xmppAddr %s matched hostname", name)
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100 return true
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101 end
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102 end
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103 end
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104 end
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105
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106 return false
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107 end
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108
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109 -- Compare a host + service against the asserted id-on-dnsSRV (SRV-ID)
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110 -- identities extracted from a certificate.
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111 --
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112 -- Per [SRV-ID], the asserted identities will be encoded in ASCII via ToASCII.
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113 -- Comparison is done case-insensitively, and a wildcard ("*") all by itself
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114 -- is allowed only as the left-most non-service label.
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115 local function compare_srvname(host, service, asserted_names)
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116 local norm_host = idna_to_ascii(host)
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117 if norm_host == nil then
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118 log("info", "Host %s failed IDNA ToASCII operation", host);
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119 return false
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120 end
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121
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122 -- Service names start with a "_"
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123 if service:match("^_") == nil then service = "_"..service end
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124
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125 norm_host = norm_host:lower();
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126 local host_chopped = norm_host:gsub("^[^.]+%.", "") -- everything after the first label
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127
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128 for i=1,#asserted_names do
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129 local asserted_service, name = asserted_names[i]:match("^(_[^.]+)%.(.*)");
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130 if service == asserted_service then
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131 if norm_host == name:lower() then
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132 log("debug", "Cert SRVName %s matched hostname", name);
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133 return true;
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134 end
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135
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136 -- Allow the left most label to be a "*"
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137 if name:match("^%*%.") then
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138 local rest_name = name:gsub("^[^.]+%.", "")
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139 if host_chopped == rest_name:lower() then
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140 log("debug", "Cert SRVName %s matched hostname", name)
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141 return true
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142 end
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143 end
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144 if norm_host == name:lower() then
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145 log("debug", "Cert SRVName %s matched hostname", name);
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Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
146 return true
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
147 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
148 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
149 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
150
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
151 return false
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
152 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
153
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6708
diff changeset
154 local function verify_identity(host, service, cert)
6708
d2beb98ece29 util.x509: Tell LuaSec we want UTF-8 data
Kim Alvefur <zash@zash.se>
parents: 6153
diff changeset
155 if cert.setencode then
d2beb98ece29 util.x509: Tell LuaSec we want UTF-8 data
Kim Alvefur <zash@zash.se>
parents: 6153
diff changeset
156 cert:setencode("utf8");
d2beb98ece29 util.x509: Tell LuaSec we want UTF-8 data
Kim Alvefur <zash@zash.se>
parents: 6153
diff changeset
157 end
3651
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
158 local ext = cert:extensions()
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
159 if ext[oid_subjectaltname] then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
160 local sans = ext[oid_subjectaltname];
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
161
4330
520fcb333cba util.x509: Update references to published RFCs
Paul Aurich <paul@darkrain42.org>
parents: 3735
diff changeset
162 -- Per [TLS-CERTS] 6.3, 6.4.4, "a client MUST NOT seek a match for a
3651
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
163 -- reference identifier if the presented identifiers include a DNS-ID
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
164 -- SRV-ID, URI-ID, or any application-specific identifier types"
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
165 local had_supported_altnames = false
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
166
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
167 if sans[oid_xmppaddr] then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
168 had_supported_altnames = true
5845
c48f717c2fd6 util.x509: Only compare identity with oid-on-xmppAddr for XMPP services
Kim Alvefur <zash@zash.se>
parents: 4825
diff changeset
169 if service == "_xmpp-client" or service == "_xmpp-server" then
c48f717c2fd6 util.x509: Only compare identity with oid-on-xmppAddr for XMPP services
Kim Alvefur <zash@zash.se>
parents: 4825
diff changeset
170 if compare_xmppaddr(host, sans[oid_xmppaddr]) then return true end
c48f717c2fd6 util.x509: Only compare identity with oid-on-xmppAddr for XMPP services
Kim Alvefur <zash@zash.se>
parents: 4825
diff changeset
171 end
3651
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
172 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
173
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
174 if sans[oid_dnssrv] then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
175 had_supported_altnames = true
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Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
176 -- Only check srvNames if the caller specified a service
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
177 if service and compare_srvname(host, service, sans[oid_dnssrv]) then return true end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
178 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
179
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
180 if sans["dNSName"] then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
181 had_supported_altnames = true
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
182 if compare_dnsname(host, sans["dNSName"]) then return true end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
183 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
184
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
185 -- We don't need URIs, but [TLS-CERTS] is clear.
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
186 if sans["uniformResourceIdentifier"] then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
187 had_supported_altnames = true
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
188 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
189
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
190 if had_supported_altnames then return false end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
191 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
192
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
193 -- Extract a common name from the certificate, and check it as if it were
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
194 -- a dNSName subjectAltName (wildcards may apply for, and receive,
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
195 -- cat treats)
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
196 --
4330
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Paul Aurich <paul@darkrain42.org>
parents: 3735
diff changeset
197 -- Per [TLS-CERTS] 1.8, a CN-ID is the Common Name from a cert subject
3651
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
198 -- which has one and only one Common Name
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
199 local subject = cert:subject()
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
200 local cn = nil
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
201 for i=1,#subject do
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
202 local dn = subject[i]
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
203 if dn["oid"] == oid_commonname then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
204 if cn then
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
205 log("info", "Certificate has multiple common names")
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
206 return false
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
207 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
208
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
209 cn = dn["value"];
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
210 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
211 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
212
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
213 if cn then
4330
520fcb333cba util.x509: Update references to published RFCs
Paul Aurich <paul@darkrain42.org>
parents: 3735
diff changeset
214 -- Per [TLS-CERTS] 6.4.4, follow the comparison rules for dNSName SANs.
3651
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
215 return compare_dnsname(host, { cn })
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
216 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
217
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
218 -- If all else fails, well, why should we be any different?
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
219 return false
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
220 end
337391d34b70 s2s: SASL EXTERNAL
Paul Aurich <paul@darkrain42.org>
parents:
diff changeset
221
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
222 -- TODO Support other SANs
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
223 local function get_identities(cert) --> map of names to sets of services
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
224 if cert.setencode then
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
225 cert:setencode("utf8");
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
226 end
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
227
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
228 local names = mt.new();
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
229
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
230 local ext = cert:extensions();
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
231 local sans = ext[oid_subjectaltname];
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
232 if sans then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
233 if sans["dNSName"] then -- Valid for any service
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
234 for _, name in ipairs(sans["dNSName"]) do
12106
c0cb8e86ad21 util.x509: Fix to include wildcard identity
Kim Alvefur <zash@zash.se>
parents: 10494
diff changeset
235 local is_wildcard = name:sub(1, 2) == "*.";
c0cb8e86ad21 util.x509: Fix to include wildcard identity
Kim Alvefur <zash@zash.se>
parents: 10494
diff changeset
236 if is_wildcard then name = name:sub(3); end
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
237 name = idna_to_unicode(nameprep(name));
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
238 if name then
12106
c0cb8e86ad21 util.x509: Fix to include wildcard identity
Kim Alvefur <zash@zash.se>
parents: 10494
diff changeset
239 if is_wildcard then name = "*." .. name; end
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
240 names:set(name, "*", true);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
241 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
242 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
243 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
244 if sans[oid_xmppaddr] then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
245 for _, name in ipairs(sans[oid_xmppaddr]) do
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
246 name = nameprep(name);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
247 if name then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
248 names:set(name, "xmpp-client", true);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
249 names:set(name, "xmpp-server", true);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
250 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
251 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
252 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
253 if sans[oid_dnssrv] then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
254 for _, srvname in ipairs(sans[oid_dnssrv]) do
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
255 local srv, name = srvname:match("^_([^.]+)%.(.*)");
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
256 if srv then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
257 name = nameprep(name);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
258 if name then
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
259 names:set(name, srv, true);
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
260 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
261 end
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
262 end
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
263 end
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
264 end
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
265
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
266 local subject = cert:subject();
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
267 for i = 1, #subject do
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
268 local dn = subject[i];
10255
8e8d3b3a55da util.x509: Nameprep commonName once
Kim Alvefur <zash@zash.se>
parents: 9907
diff changeset
269 if dn.oid == oid_commonname then
8e8d3b3a55da util.x509: Nameprep commonName once
Kim Alvefur <zash@zash.se>
parents: 9907
diff changeset
270 local name = nameprep(dn.value);
10256
b2e7b07f8b74 util.x509: Only collect commonNames that pass idna
Kim Alvefur <zash@zash.se>
parents: 10255
diff changeset
271 if name and idna_to_ascii(name) then
10494
69e55b03d5cf util.x509: Fix recording of CommonNames in get_identities
Kim Alvefur <zash@zash.se>
parents: 10259
diff changeset
272 names:set(name, "*", true);
10255
8e8d3b3a55da util.x509: Nameprep commonName once
Kim Alvefur <zash@zash.se>
parents: 9907
diff changeset
273 end
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
274 end
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
275 end
10259
9df135b06c2f util.x509: Return sets of services per identity
Kim Alvefur <zash@zash.se>
parents: 10256
diff changeset
276 return names.data;
9907
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
277 end
54e36a8677bc util.x509: Add function that extracts usable names from a certificate
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
278
12812
b2d422b88cd6 Revert unintentionally committed parts of 12bd40b8e105
Kim Alvefur <zash@zash.se>
parents: 12808
diff changeset
279 local pat = "%-%-%-%-%-BEGIN ([A-Z ]+)%-%-%-%-%-\r?\n"..
b2d422b88cd6 Revert unintentionally committed parts of 12bd40b8e105
Kim Alvefur <zash@zash.se>
parents: 12808
diff changeset
280 "([0-9A-Za-z+/=\r\n]*)\r?\n%-%-%-%-%-END %1%-%-%-%-%-";
6152
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
281
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6708
diff changeset
282 local function pem2der(pem)
6152
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
283 local typ, data = pem:match(pat);
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
284 if typ and data then
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
285 return base64.decode(data), typ;
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
286 end
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
287 end
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
288
fbab74c28e31 util.x509: And functions for converting between DER and PEM
Kim Alvefur <zash@zash.se>
parents: 5845
diff changeset
289 local wrap = ('.'):rep(64);
fbab74c28e31 util.x509: And functions for converting between DER and PEM
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290 local envelope = "-----BEGIN %s-----\n%s\n-----END %s-----\n"
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291
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292 local function der2pem(data, typ)
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293 typ = typ and typ:upper() or "CERTIFICATE";
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294 data = base64.encode(data);
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295 return s_format(envelope, typ, data:gsub(wrap, '%0\n', (#data-1)/64), typ);
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296 end
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297
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298 return {
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299 verify_identity = verify_identity;
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300 get_identities = get_identities;
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301 pem2der = pem2der;
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302 der2pem = der2pem;
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303 };