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plugins/mod_saslauth.lua @ 3221:01da55cffcfb
mod_privacy: Workaround for a traceback.
author | Waqas Hussain <waqas20@gmail.com> |
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date | Thu, 10 Jun 2010 03:26:01 +0500 |
parent | 3188:c690e3c5105c |
child | 3240:9782a222e941 |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
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 |
38 | 10 |
11 local st = require "util.stanza"; | |
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12 local sm_bind_resource = require "core.sessionmanager".bind_resource; |
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13 local sm_make_authenticated = require "core.sessionmanager".make_authenticated; |
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14 local base64 = require "util.encodings".base64; |
38 | 15 |
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16 local nodeprep = require "util.encodings".stringprep.nodeprep; |
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17 local datamanager_load = require "util.datamanager".load; |
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18 local usermanager_get_provider = require "core.usermanager".get_provider; |
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19 local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler; |
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20 local usermanager_user_exists = require "core.usermanager".user_exists; |
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21 local usermanager_get_password = require "core.usermanager".get_password; |
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22 local usermanager_test_password = require "core.usermanager".test_password; |
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23 local t_concat, t_insert = table.concat, table.insert; |
38 | 24 local tostring = tostring; |
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25 local jid_split = require "util.jid".split; |
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26 local md5 = require "util.hashes".md5; |
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27 local config = require "core.configmanager"; |
38 | 28 |
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29 local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); |
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30 local sasl_backend = module:get_option("sasl_backend") or "builtin"; |
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31 |
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32 -- Cyrus config options |
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33 local require_provisioning = module:get_option("cyrus_require_provisioning") or false; |
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34 local cyrus_service_realm = module:get_option("cyrus_service_realm"); |
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35 local cyrus_service_name = module:get_option("cyrus_service_name"); |
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36 local cyrus_application_name = module:get_option("cyrus_application_name"); |
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37 |
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38 local log = module._log; |
38 | 39 |
40 local xmlns_sasl ='urn:ietf:params:xml:ns:xmpp-sasl'; | |
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41 local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind'; |
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42 local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas'; |
38 | 43 |
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44 local new_sasl; |
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45 if sasl_backend == "builtin" then |
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46 new_sasl = require "util.sasl".new; |
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47 elseif sasl_backend == "cyrus" then |
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48 prosody.unlock_globals(); --FIXME: Figure out why this is needed and |
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49 -- why cyrussasl isn't caught by the sandbox |
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50 local ok, cyrus = pcall(require, "util.sasl_cyrus"); |
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51 prosody.lock_globals(); |
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52 if ok then |
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53 local cyrus_new = cyrus.new; |
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54 new_sasl = function(realm) |
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55 return cyrus_new( |
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56 cyrus_service_realm or realm, |
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57 cyrus_service_name or "xmpp", |
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58 cyrus_application_name or "prosody" |
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59 ); |
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60 end |
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61 else |
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62 module:log("error", "Failed to load Cyrus SASL because: %s", cyrus); |
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63 error("Failed to load Cyrus SASL"); |
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64 end |
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65 else |
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66 module:log("error", "Unknown SASL backend: %s", sasl_backend); |
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67 error("Unknown SASL backend"); |
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68 end |
38 | 69 |
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70 local anonymous_authentication_profile = { |
2193 | 71 anonymous = function(username, realm) |
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72 return true; -- for normal usage you should always return true here |
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73 end |
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74 }; |
38 | 75 |
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76 local function build_reply(status, ret, err_msg) |
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77 local reply = st.stanza(status, {xmlns = xmlns_sasl}); |
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78 if status == "challenge" then |
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79 --log("debug", "CHALLENGE: %s", ret or ""); |
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80 reply:text(base64.encode(ret or "")); |
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81 elseif status == "failure" then |
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82 reply:tag(ret):up(); |
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83 if err_msg then reply:tag("text"):text(err_msg); end |
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84 elseif status == "success" then |
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85 --log("debug", "SUCCESS: %s", ret or ""); |
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86 reply:text(base64.encode(ret or "")); |
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87 else |
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88 module:log("error", "Unknown sasl status: %s", status); |
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89 end |
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90 return reply; |
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91 end |
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92 |
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93 local function handle_status(session, status, ret, err_msg) |
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94 if status == "failure" then |
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95 session.sasl_handler = session.sasl_handler:clean_clone(); |
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96 elseif status == "success" then |
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97 local username = nodeprep(session.sasl_handler.username); |
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98 if not username then -- TODO move this to sessionmanager |
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99 module:log("warn", "SASL succeeded but we didn't get a username!"); |
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100 session.sasl_handler = nil; |
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101 session:reset_stream(); |
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102 return status, ret, err_msg; |
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103 end |
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104 |
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105 if not(require_provisioning) or usermanager_user_exists(username, session.host) then |
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106 sm_make_authenticated(session, session.sasl_handler.username); |
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107 session.sasl_handler = nil; |
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108 session:reset_stream(); |
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109 else |
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110 module:log("warn", "SASL succeeded but we don't have an account provisioned for %s", username); |
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111 session.sasl_handler = session.sasl_handler:clean_clone(); |
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parents:
3062
diff
changeset
|
112 return "failure", "not-authorized", "User authenticated successfully, but not provisioned for XMPP"; |
596303990c7c
usermanager, mod_saslauth: Make account provisioning for Cyrus SASL optional (default: not required)
Matthew Wild <mwild1@gmail.com>
parents:
3062
diff
changeset
|
113 end |
281
826308c07627
mod_saslauth updated for digest-md5
Waqas Hussain <waqas20@gmail.com>
parents:
120
diff
changeset
|
114 end |
3062
892c49869293
mod_saslauth: Add return value and error message to the Cyrus SASL handle_status callback
Matthew Wild <mwild1@gmail.com>
parents:
3061
diff
changeset
|
115 return status, ret, err_msg; |
281
826308c07627
mod_saslauth updated for digest-md5
Waqas Hussain <waqas20@gmail.com>
parents:
120
diff
changeset
|
116 end |
826308c07627
mod_saslauth updated for digest-md5
Waqas Hussain <waqas20@gmail.com>
parents:
120
diff
changeset
|
117 |
705
11afa1d88c55
mod_saslauth, mod_tls: minor code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
615
diff
changeset
|
118 local function sasl_handler(session, stanza) |
295
bb078eb1f1de
mod_saslauth: Code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
293
diff
changeset
|
119 if stanza.name == "auth" then |
bb078eb1f1de
mod_saslauth: Code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
120 -- FIXME ignoring duplicates because ejabberd does |
1186
078eb3b109e9
mod_saslauth: Fix logic error which prevented SASL ANONYMOUS from working
Matthew Wild <mwild1@gmail.com>
parents:
1073
diff
changeset
|
121 if config.get(session.host or "*", "core", "anonymous_login") then |
078eb3b109e9
mod_saslauth: Fix logic error which prevented SASL ANONYMOUS from working
Matthew Wild <mwild1@gmail.com>
parents:
1073
diff
changeset
|
122 if stanza.attr.mechanism ~= "ANONYMOUS" then |
078eb3b109e9
mod_saslauth: Fix logic error which prevented SASL ANONYMOUS from working
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parents:
1073
diff
changeset
|
123 return session.send(build_reply("failure", "invalid-mechanism")); |
078eb3b109e9
mod_saslauth: Fix logic error which prevented SASL ANONYMOUS from working
Matthew Wild <mwild1@gmail.com>
parents:
1073
diff
changeset
|
124 end |
938
663f75dd7b42
Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents:
935
diff
changeset
|
125 elseif stanza.attr.mechanism == "ANONYMOUS" then |
935
efe3eaaeff34
Fixed: mod_saslauth: "anonymous_login" currently makes SASL ANONYMOUS an exclusive mechanism. Corrected advertised mechanisms and error replies.
Waqas Hussain <waqas20@gmail.com>
parents:
934
diff
changeset
|
126 return session.send(build_reply("failure", "mechanism-too-weak")); |
efe3eaaeff34
Fixed: mod_saslauth: "anonymous_login" currently makes SASL ANONYMOUS an exclusive mechanism. Corrected advertised mechanisms and error replies.
Waqas Hussain <waqas20@gmail.com>
parents:
934
diff
changeset
|
127 end |
2179
c985536d5452
Making mod_saslauth use the new SASL API.
Tobias Markmann <tm@ayena.de>
parents:
1639
diff
changeset
|
128 local valid_mechanism = session.sasl_handler:select(stanza.attr.mechanism); |
c985536d5452
Making mod_saslauth use the new SASL API.
Tobias Markmann <tm@ayena.de>
parents:
1639
diff
changeset
|
129 if not valid_mechanism then |
935
efe3eaaeff34
Fixed: mod_saslauth: "anonymous_login" currently makes SASL ANONYMOUS an exclusive mechanism. Corrected advertised mechanisms and error replies.
Waqas Hussain <waqas20@gmail.com>
parents:
934
diff
changeset
|
130 return session.send(build_reply("failure", "invalid-mechanism")); |
efe3eaaeff34
Fixed: mod_saslauth: "anonymous_login" currently makes SASL ANONYMOUS an exclusive mechanism. Corrected advertised mechanisms and error replies.
Waqas Hussain <waqas20@gmail.com>
parents:
934
diff
changeset
|
131 end |
2784
e165414a454c
mod_saslauth: Requiring c2s encryption means requiring c2s encryption... thanks Flo
Matthew Wild <mwild1@gmail.com>
parents:
2014
diff
changeset
|
132 if secure_auth_only and not session.secure then |
e165414a454c
mod_saslauth: Requiring c2s encryption means requiring c2s encryption... thanks Flo
Matthew Wild <mwild1@gmail.com>
parents:
2014
diff
changeset
|
133 return session.send(build_reply("failure", "encryption-required")); |
e165414a454c
mod_saslauth: Requiring c2s encryption means requiring c2s encryption... thanks Flo
Matthew Wild <mwild1@gmail.com>
parents:
2014
diff
changeset
|
134 end |
295
bb078eb1f1de
mod_saslauth: Code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
293
diff
changeset
|
135 elseif not session.sasl_handler then |
bb078eb1f1de
mod_saslauth: Code cleanup
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parents:
293
diff
changeset
|
136 return; -- FIXME ignoring out of order stanzas because ejabberd does |
bb078eb1f1de
mod_saslauth: Code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
293
diff
changeset
|
137 end |
284
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
138 local text = stanza[1]; |
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diff
changeset
|
139 if text then |
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Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
140 text = base64.decode(text); |
2860
ad534f89c758
mod_saslauth: Don't print raw SASL data to avoid logging passwords unnecessarily
Matthew Wild <mwild1@gmail.com>
parents:
2014
diff
changeset
|
141 --log("debug", "AUTH: %s", text:gsub("[%z\001-\008\011\012\014-\031]", " ")); |
284
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
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parents:
281
diff
changeset
|
142 if not text then |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
143 session.sasl_handler = nil; |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
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parents:
281
diff
changeset
|
144 session.send(build_reply("failure", "incorrect-encoding")); |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
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parents:
281
diff
changeset
|
145 return; |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
146 end |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
147 end |
2179
c985536d5452
Making mod_saslauth use the new SASL API.
Tobias Markmann <tm@ayena.de>
parents:
1639
diff
changeset
|
148 local status, ret, err_msg = session.sasl_handler:process(text); |
3062
892c49869293
mod_saslauth: Add return value and error message to the Cyrus SASL handle_status callback
Matthew Wild <mwild1@gmail.com>
parents:
3061
diff
changeset
|
149 status, ret, err_msg = handle_status(session, status, ret, err_msg); |
1584
ffe8a9296e04
mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
Nick Thomas
parents:
1523
diff
changeset
|
150 local s = build_reply(status, ret, err_msg); |
1072
c7967004b5d0
mod_saslauth: Various logging fixes
Matthew Wild <mwild1@gmail.com>
parents:
1071
diff
changeset
|
151 log("debug", "sasl reply: %s", tostring(s)); |
288
dc53343af9ac
Set username in a SASL object.
Tobias Markmann <tm@ayena.de>
parents:
286
diff
changeset
|
152 session.send(s); |
284
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
153 end |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
154 |
438
193f9dd64f17
Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
Matthew Wild <mwild1@gmail.com>
parents:
357
diff
changeset
|
155 module:add_handler("c2s_unauthed", "auth", xmlns_sasl, sasl_handler); |
193f9dd64f17
Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
Matthew Wild <mwild1@gmail.com>
parents:
357
diff
changeset
|
156 module:add_handler("c2s_unauthed", "abort", xmlns_sasl, sasl_handler); |
193f9dd64f17
Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
Matthew Wild <mwild1@gmail.com>
parents:
357
diff
changeset
|
157 module:add_handler("c2s_unauthed", "response", xmlns_sasl, sasl_handler); |
284
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
158 |
357
17bcecb06420
Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
Matthew Wild <mwild1@gmail.com>
parents:
313
diff
changeset
|
159 local mechanisms_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-sasl' }; |
17bcecb06420
Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
Matthew Wild <mwild1@gmail.com>
parents:
313
diff
changeset
|
160 local bind_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-bind' }; |
17bcecb06420
Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
Matthew Wild <mwild1@gmail.com>
parents:
313
diff
changeset
|
161 local xmpp_session_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-session' }; |
2612
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
2451
diff
changeset
|
162 module:hook("stream-features", function(event) |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
163 local origin, features = event.origin, event.features; |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
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|
164 if not origin.username then |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
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diff
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|
165 if secure_auth_only and not origin.secure then |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
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|
166 return; |
d2f747920eaf
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Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
167 end |
2894
066c199135d5
mod_saslauth: Add a sasl_realm option
Paul Aurich <paul@darkrain42.org>
parents:
2724
diff
changeset
|
168 local realm = module:get_option("sasl_realm") or origin.host; |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
169 if module:get_option("anonymous_login") then |
2894
066c199135d5
mod_saslauth: Add a sasl_realm option
Paul Aurich <paul@darkrain42.org>
parents:
2724
diff
changeset
|
170 origin.sasl_handler = new_sasl(realm, anonymous_authentication_profile); |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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parents:
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diff
changeset
|
171 else |
3188
c690e3c5105c
mod_saslauth: Updated to use usermanager.get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents:
3178
diff
changeset
|
172 origin.sasl_handler = usermanager_get_sasl_handler(module.host); |
2612
475552b04151
mod_saslauth: Hook stream-features event using new events API.
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parents:
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diff
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|
173 if not (module:get_option("allow_unencrypted_plain_auth")) and not origin.secure then |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
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parents:
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diff
changeset
|
174 origin.sasl_handler:forbidden({"PLAIN"}); |
705
11afa1d88c55
mod_saslauth, mod_tls: minor code cleanup
Waqas Hussain <waqas20@gmail.com>
parents:
615
diff
changeset
|
175 end |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
176 end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
changeset
|
177 features:tag("mechanisms", mechanisms_attr); |
2612
475552b04151
mod_saslauth: Hook stream-features event using new events API.
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parents:
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diff
changeset
|
178 for k, v in pairs(origin.sasl_handler:mechanisms()) do |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
changeset
|
179 features:tag("mechanism"):text(v):up(); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
180 end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
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|
181 features:up(); |
d2f747920eaf
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diff
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|
182 else |
d2f747920eaf
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diff
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|
183 features:tag("bind", bind_attr):tag("required"):up():up(); |
d2f747920eaf
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diff
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|
184 features:tag("session", xmpp_session_attr):tag("optional"):up():up(); |
d2f747920eaf
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diff
changeset
|
185 end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
changeset
|
186 end); |
1584
ffe8a9296e04
mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
Nick Thomas
parents:
1523
diff
changeset
|
187 |
2451
d2f747920eaf
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diff
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|
188 module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind", function(session, stanza) |
d2f747920eaf
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diff
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|
189 log("debug", "Client requesting a resource bind"); |
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diff
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|
190 local resource; |
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diff
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|
191 if stanza.attr.type == "set" then |
d2f747920eaf
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diff
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|
192 local bind = stanza.tags[1]; |
d2f747920eaf
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diff
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|
193 if bind and bind.attr.xmlns == xmlns_bind then |
d2f747920eaf
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diff
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|
194 resource = bind:child_with_name("resource"); |
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|
195 if resource then |
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diff
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|
196 resource = resource[1]; |
46
d6b3f9dbb624
Resource binding, XMPP sessions (whatever they're for...)
Matthew Wild <mwild1@gmail.com>
parents:
38
diff
changeset
|
197 end |
2451
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diff
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|
198 end |
d2f747920eaf
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diff
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|
199 end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
changeset
|
200 local success, err_type, err, err_msg = sm_bind_resource(session, resource); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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diff
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|
201 if not success then |
d2f747920eaf
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diff
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|
202 session.send(st.error_reply(stanza, err_type, err, err_msg)); |
d2f747920eaf
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diff
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|
203 else |
d2f747920eaf
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diff
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|
204 session.send(st.reply(stanza) |
d2f747920eaf
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diff
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|
205 :tag("bind", { xmlns = xmlns_bind}) |
d2f747920eaf
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Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
206 :tag("jid"):text(session.full_jid)); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
207 end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
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parents:
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diff
changeset
|
208 end); |
1584
ffe8a9296e04
mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
Nick Thomas
parents:
1523
diff
changeset
|
209 |
2451
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Waqas Hussain <waqas20@gmail.com>
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diff
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|
210 module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-session", function(session, stanza) |
d2f747920eaf
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diff
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|
211 log("debug", "Client requesting a session"); |
d2f747920eaf
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diff
changeset
|
212 session.send(st.reply(stanza)); |
d2f747920eaf
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Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
213 end); |