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util/sasl/digest-md5.lua @ 10693:76bb806cdd4b

MUC: Add initial hats support (broadcast only) Based on the currently-deferred XEP-0317. The protocol differs a little (because XEP-0317 is incomplete), therefore currently we use a custom namespace. The plan is to update and finish XEP-0317.

author	Matthew Wild <mwild1@gmail.com>
date	Wed, 18 Mar 2020 17:42:56 +0000
parent	8555:4f0f5b49bb03

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
3094 5f625411b463 util.sasl: 2009 -> 2010 in copyright header. Tobias Markmann <tm@ayena.de> parents: 3092 diff changeset	2 -- Copyright (C) 2008-2010 Tobias Markmann
2186 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;
5301 6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	26 local nodeprep = require "util.encodings".stringprep.nodeprep;
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	27
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: 5301 diff changeset	28 local _ENV = nil;
8555 4f0f5b49bb03 vairious: Add annotation when an empty environment is set [luacheck] Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	29 -- luacheck: std none
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	30
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	31 --=========================
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	32 --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	33
3092 d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	34 --[[
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	35 Supported Authentication Backends
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	36
3122 579f17b9f948 util.sasl.: Adjusting authentication provider names. All '-' replaced with '_' Tobias Markmann <tm@ayena.de>* parents: 3094 diff changeset	37 digest_md5:
3092 d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	38 function(username, domain, realm, encoding) -- domain and realm are usually the same; for some broken
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	39 -- implementations it's not
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	40 return digesthash, state;
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	41 end
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	42
3122 579f17b9f948 util.sasl.: Adjusting authentication provider names. All '-' replaced with '_' Tobias Markmann <tm@ayena.de>* parents: 3094 diff changeset	43 digest_md5_test:
3092 d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	44 function(username, domain, realm, encoding, digesthash)
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	45 return true or false, state;
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	46 end
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	47 ]]
d32935878661 util.sasl: Moving SASL authentication backends documentation to the mechanism files. Tobias Markmann <tm@ayena.de> parents: 2936 diff changeset	48
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	49 local function digest(self, message)
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	50 --TODO complete support for authzid
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	51
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	52 local function serialize(message)
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	53 local data = ""
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
5301 6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	144 local username = response["username"];
6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	145 local _nodeprep = self.profile.nodeprep;
6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	146 if username and _nodeprep ~= false then
6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	147 username = (_nodeprep or nodeprep)(username); -- FIXME charset
6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	148 end
6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	149 if not username or username == "" then
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	150 return "failure", "malformed-request";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	151 end
5301 6279caf921f1 util.sasl.{plain,scram,digest-md5}: nodeprep username before passing to callbacks, so callbacks don't have to. Waqas Hussain <waqas20@gmail.com> parents: 4113 diff changeset	152 self.username = username;
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	153
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	154 -- check for nonce, ...
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	155 if not response["nonce"] then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	156 return "failure", "malformed-request";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	157 else
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	158 -- check if it's the right nonce
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	159 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	160 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	161
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	162 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	163 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	164
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	165 if response["realm"] == nil or response["realm"] == "" then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	166 response["realm"] = "";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	167 elseif response["realm"] ~= self.realm then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	168 return "failure", "not-authorized", "Incorrect realm value";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	169 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	170
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	171 local decoder;
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	172 if response["charset"] == nil then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	173 decoder = utf8tolatin1ifpossible;
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	174 elseif response["charset"] ~= "utf-8" then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	175 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	176 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	177
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	178 local domain = "";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	179 local protocol = "";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	180 if response["digest-uri"] then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	181 protocol, domain = response["digest-uri"]:match("(%w+)/(.*)$");
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	182 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	183 else
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	184 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	185 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	186
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	187 --TODO maybe realm support
2258 e4c5d0d21ac7 util.sasl.digest-md5: Fixing some variable access. Tobias Markmann <tm@ayena.de> parents: 2255 diff changeset	188 local Y, state;
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	189 if self.profile.plain then
3981 2b0b8fe68df2 util.sasl., mod_auth_, mod_saslauth: Pass SASL handler as first parameter to SASL profile callbacks. Waqas Hussain <waqas20@gmail.com> parents: 3124 diff changeset	190 local password, state = self.profile.plain(self, response["username"], self.realm)
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	191 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	192 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	193 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	194 elseif self.profile["digest-md5"] then
3981 2b0b8fe68df2 util.sasl., mod_auth_, mod_saslauth: Pass SASL handler as first parameter to SASL profile callbacks. Waqas Hussain <waqas20@gmail.com> parents: 3124 diff changeset	195 Y, state = self.profile["digest-md5"](self, 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	196 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	197 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	198 elseif self.profile["digest-md5-test"] then
2189 1182e7ae2964 Broken DIGEST-MD5 client support again. Tobias Markmann <tm@ayena.de> parents: 2188 diff changeset	199 -- TODO
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	200 end
1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	201 --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	202 --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	203 --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	204 local A1 = "";
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	205 if response.authzid then
2193 8fbbdb11a520 Merge with sasl branch. Tobias Markmann <tm@ayena.de> parents: 2192 diff changeset	206 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	207 -- COMPAT
2193 8fbbdb11a520 Merge with sasl branch. Tobias Markmann <tm@ayena.de> parents: 2192 diff changeset	208 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	209 A1 = Y..":"..response["nonce"]..":"..response["cnonce"]..":"..response.authzid;
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	210 else
2193 8fbbdb11a520 Merge with sasl branch. Tobias Markmann <tm@ayena.de> parents: 2192 diff changeset	211 return "failure", "invalid-authzid";
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	212 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	213 else
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	214 A1 = Y..":"..response["nonce"]..":"..response["cnonce"];
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	215 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	216 local A2 = "AUTHENTICATE:"..protocol.."/"..domain;
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	217
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	218 local HA1 = md5(A1, true);
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	219 local HA2 = md5(A2, true);
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	220
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	221 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	222 local response_value = md5(KD, true);
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 if response_value == response["response"] then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	225 -- calculate rspauth
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	226 A2 = ":"..protocol.."/"..domain;
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	227
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	228 HA1 = md5(A1, true);
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	229 HA2 = md5(A2, true);
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	230
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	231 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	232 local rspauth = md5(KD, true);
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	233 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	234 --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	235 return "challenge", serialize({rspauth = rspauth});
2186 1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	236 else
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	237 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	238 end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	239 elseif self.step == 3 then
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	240 if self.authenticated ~= nil then return "success"
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	241 else return "failure", "malformed-request" end
1112871916eb Move each mechanism in an own file. Tobias Markmann <tm@ayena.de> parents: diff changeset	242 end
2188 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
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: 5301 diff changeset	245 local function init(registerMechanism)
2188 1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	246 registerMechanism("DIGEST-MD5", {"plain"}, digest);
1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	247 end
1fd38975addd Add support for plain profile in digest-md5 implementation. Tobias Markmann <tm@ayena.de> parents: 2186 diff changeset	248
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: 5301 diff changeset	249 return {
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: 5301 diff changeset	250 init = init;
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: 5301 diff changeset	251 }

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76bb806cdd4b

util/sasl/digest-md5.lua

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util/sasl/digest-md5.lua @ 10693:76bb806cdd4b

Software `/` code `/` prosody