prosody
0fa3a7c885bd
util/sasl/digest-md5.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/sasl/digest-md5.lua @ 2991:0fa3a7c885bd

util.sasl: Moving SASL authentication backends documentation to the mechanism files.
author Tobias Markmann <tm@ayena.de>
date Sun, 28 Feb 2010 22:32:12 +0100
parent 2569:8474ea768c89
child 2996:b0515ed4d9d7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
1 -- sasl.lua v0.4
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
2 -- Copyright (C) 2008-2009 Tobias Markmann
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
3 --
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
4 -- All rights reserved.
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
5 --
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
6 -- Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
7 --
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
8 -- * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
9 -- * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
10 -- * Neither the name of Tobias Markmann nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
11 --
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
12 -- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
13
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
14 local tostring = tostring;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
15 local type = type;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
16
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
17 local s_gmatch = string.gmatch;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
18 local s_match = string.match;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
19 local t_concat = table.concat;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
20 local t_insert = table.insert;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
21 local to_byte, to_char = string.byte, string.char;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
22
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
23 local md5 = require "util.hashes".md5;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
24 local log = require "util.logger".init("sasl");
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
25 local generate_uuid = require "util.uuid".generate;
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
26
2206
Tobias Markmann <tm@ayena.de>
parents: 2193
diff changeset
27 module "digest-md5"
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
28
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
29 --=========================
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
30 --SASL DIGEST-MD5 according to RFC 2831
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
31
2991
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
32 --[[
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
33 Supported Authentication Backends
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
34
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
35 digest-md5:
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
36 function(username, domain, realm, encoding) -- domain and realm are usually the same; for some broken
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
37 -- implementations it's not
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
38 return digesthash, state;
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
39 end
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
40
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
41 digest-md5-test:
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
42 function(username, domain, realm, encoding, digesthash)
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
43 return true or false, state;
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
44 end
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
45 ]]
0fa3a7c885bd util.sasl: Moving SASL authentication backends documentation to the mechanism files.
Tobias Markmann <tm@ayena.de>
parents: 2569
diff changeset
46
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
47 local function digest(self, message)
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
48 --TODO complete support for authzid
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
49
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
50 local function serialize(message)
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
51 local data = ""
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
52
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
53 if type(message) ~= "table" then error("serialize needs an argument of type table.") end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
54
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
55 -- testing all possible values
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
56 if message["realm"] then data = data..[[realm="]]..message.realm..[[",]] end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
57 if message["nonce"] then data = data..[[nonce="]]..message.nonce..[[",]] end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
58 if message["qop"] then data = data..[[qop="]]..message.qop..[[",]] end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
59 if message["charset"] then data = data..[[charset=]]..message.charset.."," end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
60 if message["algorithm"] then data = data..[[algorithm=]]..message.algorithm.."," end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
61 if message["rspauth"] then data = data..[[rspauth=]]..message.rspauth.."," end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
62 data = data:gsub(",$", "")
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
63 return data
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
64 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
65
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
66 local function utf8tolatin1ifpossible(passwd)
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
67 local i = 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
68 while i <= #passwd do
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
69 local passwd_i = to_byte(passwd:sub(i, i));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
70 if passwd_i > 0x7F then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
71 if passwd_i < 0xC0 or passwd_i > 0xC3 then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
72 return passwd;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
73 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
74 i = i + 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
75 passwd_i = to_byte(passwd:sub(i, i));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
76 if passwd_i < 0x80 or passwd_i > 0xBF then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
77 return passwd;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
78 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
79 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
80 i = i + 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
81 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
82
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
83 local p = {};
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
84 local j = 0;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
85 i = 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
86 while (i <= #passwd) do
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
87 local passwd_i = to_byte(passwd:sub(i, i));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
88 if passwd_i > 0x7F then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
89 i = i + 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
90 local passwd_i_1 = to_byte(passwd:sub(i, i));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
91 t_insert(p, to_char(passwd_i%4*64 + passwd_i_1%64)); -- I'm so clever
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
92 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
93 t_insert(p, to_char(passwd_i));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
94 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
95 i = i + 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
96 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
97 return t_concat(p);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
98 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
99 local function latin1toutf8(str)
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
100 local p = {};
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
101 for ch in s_gmatch(str, ".") do
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
102 ch = to_byte(ch);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
103 if (ch < 0x80) then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
104 t_insert(p, to_char(ch));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
105 elseif (ch < 0xC0) then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
106 t_insert(p, to_char(0xC2, ch));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
107 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
108 t_insert(p, to_char(0xC3, ch - 64));
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
109 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
110 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
111 return t_concat(p);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
112 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
113 local function parse(data)
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
114 local message = {}
2212
7cb6460b18d8 Merge with trunk.
Tobias Markmann <tm@ayena.de>
parents: 2211
diff changeset
115 -- COMPAT: %z in the pattern to work around jwchat bug (sends "charset=utf-8\0")
2215
4678aa4567c8 SASL: Using locally mapped s_gmatch instead of unavailable gmatch.
Tobias Markmann <tm@ayena.de>
parents: 2212
diff changeset
116 for k, v in s_gmatch(data, [[([%w%-]+)="?([^",%z]*)"?,?]]) do -- FIXME The hacky regex makes me shudder
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
117 message[k] = v;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
118 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
119 return message;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
120 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
121
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
122 if not self.nonce then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
123 self.nonce = generate_uuid();
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
124 self.step = 0;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
125 self.nonce_count = {};
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
126 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
127
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
128 self.step = self.step + 1;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
129 if (self.step == 1) then
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
130 local challenge = serialize({ nonce = self.nonce,
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
131 qop = "auth",
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
132 charset = "utf-8",
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
133 algorithm = "md5-sess",
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
134 realm = self.realm});
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
135 return "challenge", challenge;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
136 elseif (self.step == 2) then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
137 local response = parse(message);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
138 -- check for replay attack
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
139 if response["nc"] then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
140 if self.nonce_count[response["nc"]] then return "failure", "not-authorized" end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
141 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
142
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
143 -- check for username, it's REQUIRED by RFC 2831
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
144 if not response["username"] then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
145 return "failure", "malformed-request";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
146 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
147 self["username"] = response["username"];
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
148
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
149 -- check for nonce, ...
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
150 if not response["nonce"] then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
151 return "failure", "malformed-request";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
152 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
153 -- check if it's the right nonce
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
154 if response["nonce"] ~= tostring(self.nonce) then return "failure", "malformed-request" end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
155 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
156
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
157 if not response["cnonce"] then return "failure", "malformed-request", "Missing entry for cnonce in SASL message." end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
158 if not response["qop"] then response["qop"] = "auth" end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
159
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
160 if response["realm"] == nil or response["realm"] == "" then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
161 response["realm"] = "";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
162 elseif response["realm"] ~= self.realm then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
163 return "failure", "not-authorized", "Incorrect realm value";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
164 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
165
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
166 local decoder;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
167 if response["charset"] == nil then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
168 decoder = utf8tolatin1ifpossible;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
169 elseif response["charset"] ~= "utf-8" then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
170 return "failure", "incorrect-encoding", "The client's response uses "..response["charset"].." for encoding with isn't supported by sasl.lua. Supported encodings are latin or utf-8.";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
171 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
172
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
173 local domain = "";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
174 local protocol = "";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
175 if response["digest-uri"] then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
176 protocol, domain = response["digest-uri"]:match("(%w+)/(.*)$");
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
177 if protocol == nil or domain == nil then return "failure", "malformed-request" end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
178 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
179 return "failure", "malformed-request", "Missing entry for digest-uri in SASL message."
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
180 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
181
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
182 --TODO maybe realm support
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
183 self.username = response["username"];
2258
e4c5d0d21ac7 util.sasl.digest-md5: Fixing some variable access.
Tobias Markmann <tm@ayena.de>
parents: 2255
diff changeset
184 local Y, state;
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
185 if self.profile.plain then
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
186 local password, state = self.profile.plain(response["username"], self.realm)
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
187 if state == nil then return "failure", "not-authorized"
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
188 elseif state == false then return "failure", "account-disabled" end
2189
1182e7ae2964 Broken DIGEST-MD5 client support again.
Tobias Markmann <tm@ayena.de>
parents: 2188
diff changeset
189 Y = md5(response["username"]..":"..response["realm"]..":"..password);
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
190 elseif self.profile["digest-md5"] then
2258
e4c5d0d21ac7 util.sasl.digest-md5: Fixing some variable access.
Tobias Markmann <tm@ayena.de>
parents: 2255
diff changeset
191 Y, state = self.profile["digest-md5"](response["username"], self.realm, response["realm"], response["charset"])
2191
e79c0ce6cf54 Adding support for digest-md5 profile in DIGEST-MD5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2189
diff changeset
192 if state == nil then return "failure", "not-authorized"
e79c0ce6cf54 Adding support for digest-md5 profile in DIGEST-MD5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2189
diff changeset
193 elseif state == false then return "failure", "account-disabled" end
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
194 elseif self.profile["digest-md5-test"] then
2189
1182e7ae2964 Broken DIGEST-MD5 client support again.
Tobias Markmann <tm@ayena.de>
parents: 2188
diff changeset
195 -- TODO
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
196 end
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
197 --local password_encoding, Y = self.credentials_handler("DIGEST-MD5", response["username"], self.realm, response["realm"], decoder);
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
198 --if Y == nil then return "failure", "not-authorized"
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
199 --elseif Y == false then return "failure", "account-disabled" end
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
200 local A1 = "";
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
201 if response.authzid then
2193
8fbbdb11a520 Merge with sasl branch.
Tobias Markmann <tm@ayena.de>
parents: 2192
diff changeset
202 if response.authzid == self.username or response.authzid == self.username.."@"..self.realm then
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
203 -- COMPAT
2193
8fbbdb11a520 Merge with sasl branch.
Tobias Markmann <tm@ayena.de>
parents: 2192
diff changeset
204 log("warn", "Client is violating RFC 3920 (section 6.1, point 7).");
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
205 A1 = Y..":"..response["nonce"]..":"..response["cnonce"]..":"..response.authzid;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
206 else
2193
8fbbdb11a520 Merge with sasl branch.
Tobias Markmann <tm@ayena.de>
parents: 2192
diff changeset
207 return "failure", "invalid-authzid";
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
208 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
209 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
210 A1 = Y..":"..response["nonce"]..":"..response["cnonce"];
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
211 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
212 local A2 = "AUTHENTICATE:"..protocol.."/"..domain;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
213
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
214 local HA1 = md5(A1, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
215 local HA2 = md5(A2, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
216
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
217 local KD = HA1..":"..response["nonce"]..":"..response["nc"]..":"..response["cnonce"]..":"..response["qop"]..":"..HA2;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
218 local response_value = md5(KD, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
219
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
220 if response_value == response["response"] then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
221 -- calculate rspauth
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
222 A2 = ":"..protocol.."/"..domain;
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
223
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
224 HA1 = md5(A1, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
225 HA2 = md5(A2, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
226
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
227 KD = HA1..":"..response["nonce"]..":"..response["nc"]..":"..response["cnonce"]..":"..response["qop"]..":"..HA2
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
228 local rspauth = md5(KD, true);
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
229 self.authenticated = true;
2568
25e1a544a096 util.sasl.digest-md5: Revert changeset 6094a4e2b6f3 as it breaks some clients, re-visit some time down the line
Matthew Wild <mwild1@gmail.com>
parents: 2211
diff changeset
230 --TODO: considering sending the rspauth in a success node for saving one roundtrip; allowed according to http://tools.ietf.org/html/draft-saintandre-rfc3920bis-09#section-7.3.6
25e1a544a096 util.sasl.digest-md5: Revert changeset 6094a4e2b6f3 as it breaks some clients, re-visit some time down the line
Matthew Wild <mwild1@gmail.com>
parents: 2211
diff changeset
231 return "challenge", serialize({rspauth = rspauth});
2186
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
232 else
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
233 return "failure", "not-authorized", "The response provided by the client doesn't match the one we calculated."
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
234 end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
235 elseif self.step == 3 then
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
236 if self.authenticated ~= nil then return "success"
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
237 else return "failure", "malformed-request" end
1112871916eb Move each mechanism in an own file.
Tobias Markmann <tm@ayena.de>
parents:
diff changeset
238 end
2188
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
239 end
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
240
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
241 function init(registerMechanism)
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
242 registerMechanism("DIGEST-MD5", {"plain"}, digest);
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
243 end
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
244
1fd38975addd Add support for plain profile in digest-md5 implementation.
Tobias Markmann <tm@ayena.de>
parents: 2186
diff changeset
245 return _M;