author | Waqas Hussain <waqas20@gmail.com> |
Sat, 16 Oct 2010 05:16:45 +0500 | |
changeset 3524 | d206b4e0a9f3 |
parent 3523 | 32a0c3816d73 |
child 3535 | b953b0c0f203 |
permissions | -rw-r--r-- |
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-- Prosody IM |
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-- Copyright (C) 2008-2010 Matthew Wild |
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-- Copyright (C) 2008-2010 Waqas Hussain |
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-- |
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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-- |
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local st = require "util.stanza"; |
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Resource binding, XMPP sessions (whatever they're for...)
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local sm_bind_resource = require "core.sessionmanager".bind_resource; |
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local sm_make_authenticated = require "core.sessionmanager".make_authenticated; |
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local base64 = require "util.encodings".base64; |
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local nodeprep = require "util.encodings".stringprep.nodeprep; |
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local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler; |
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local t_concat, t_insert = table.concat, table.insert; |
38 | 19 |
local tostring = tostring; |
20 |
||
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local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); |
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local anonymous_login = module:get_option("anonymous_login"); |
3417
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mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
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local allow_unencrypted_plain_auth = module:get_option("allow_unencrypted_plain_auth") |
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mod_saslauth: Split out cyrus SASL config options into locals, and add support for cyrus_application_name (default: 'prosody')
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local log = module._log; |
38 | 26 |
|
27 |
local xmlns_sasl ='urn:ietf:params:xml:ns:xmpp-sasl'; |
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local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind'; |
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local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas'; |
38 | 30 |
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local new_sasl = require "util.sasl".new; |
38 | 32 |
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local anonymous_authentication_profile = { |
2193 | 34 |
anonymous = function(username, realm) |
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return true; -- for normal usage you should always return true here |
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36 |
end |
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}; |
38 | 38 |
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local function build_reply(status, ret, err_msg) |
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local reply = st.stanza(status, {xmlns = xmlns_sasl}); |
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if status == "challenge" then |
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--log("debug", "CHALLENGE: %s", ret or ""); |
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reply:text(base64.encode(ret or "")); |
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elseif status == "failure" then |
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reply:tag(ret):up(); |
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if err_msg then reply:tag("text"):text(err_msg); end |
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elseif status == "success" then |
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--log("debug", "SUCCESS: %s", ret or ""); |
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reply:text(base64.encode(ret or "")); |
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else |
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module:log("error", "Unknown sasl status: %s", status); |
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52 |
end |
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53 |
return reply; |
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54 |
end |
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55 |
|
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mod_saslauth: Add return value and error message to the Cyrus SASL handle_status callback
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56 |
local function handle_status(session, status, ret, err_msg) |
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if status == "failure" then |
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session.sasl_handler = session.sasl_handler:clean_clone(); |
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elseif status == "success" then |
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mod_saslauth: Prep username used for authenticating a session
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local username = nodeprep(session.sasl_handler.username); |
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usermanager, mod_saslauth: Make account provisioning for Cyrus SASL optional (default: not required)
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61 |
|
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mod_saslauth, mod_auth_cyrus, util.sasl_cyrus: Moved cyrus account provisioning check out of mod_saslauth.
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62 |
local ok, err = sm_make_authenticated(session, session.sasl_handler.username); |
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63 |
if ok then |
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64 |
session.sasl_handler = nil; |
d50e2c937717
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65 |
session:reset_stream(); |
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usermanager, mod_saslauth: Make account provisioning for Cyrus SASL optional (default: not required)
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66 |
else |
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mod_saslauth, mod_auth_cyrus, util.sasl_cyrus: Moved cyrus account provisioning check out of mod_saslauth.
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67 |
module:log("warn", "SASL succeeded but username was invalid"); |
3064
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usermanager, mod_saslauth: Make account provisioning for Cyrus SASL optional (default: not required)
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68 |
session.sasl_handler = session.sasl_handler:clean_clone(); |
3468
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mod_saslauth, mod_auth_cyrus, util.sasl_cyrus: Moved cyrus account provisioning check out of mod_saslauth.
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parents:
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69 |
return "failure", "not-authorized", "User authenticated successfully, but username was invalid"; |
3064
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usermanager, mod_saslauth: Make account provisioning for Cyrus SASL optional (default: not required)
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70 |
end |
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71 |
end |
3062
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mod_saslauth: Add return value and error message to the Cyrus SASL handle_status callback
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parents:
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72 |
return status, ret, err_msg; |
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73 |
end |
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74 |
|
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mod_saslauth, mod_tls: minor code cleanup
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75 |
local function sasl_handler(session, stanza) |
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76 |
if stanza.name == "auth" then |
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77 |
-- FIXME ignoring duplicates because ejabberd does |
3418
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mod_saslauth: Fixed a nil global access.
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78 |
local mechanism = stanza.attr.mechanism; |
3385
192ffdaef491
mod_saslauth: A little cleanup for anonymous_login.
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parents:
3363
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changeset
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79 |
if anonymous_login then |
3418
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80 |
if mechanism ~= "ANONYMOUS" then |
1186
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mod_saslauth: Fix logic error which prevented SASL ANONYMOUS from working
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81 |
return session.send(build_reply("failure", "invalid-mechanism")); |
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82 |
end |
3418
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mod_saslauth: Fixed a nil global access.
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83 |
elseif 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:
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84 |
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:
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changeset
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85 |
end |
3417
53e854b52110
mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
Waqas Hussain <waqas20@gmail.com>
parents:
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86 |
if not session.secure and (secure_auth_only or (mechanism == "PLAIN" and not allow_unencrypted_plain_auth)) then |
3416
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mod_saslauth: Move mandatory encryption enforcement to before sasl_handler:select().
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87 |
return session.send(build_reply("failure", "encryption-required")); |
c505a8cc8922
mod_saslauth: Move mandatory encryption enforcement to before sasl_handler:select().
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88 |
end |
3418
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mod_saslauth: Fixed a nil global access.
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89 |
local valid_mechanism = session.sasl_handler:select(mechanism); |
2179
c985536d5452
Making mod_saslauth use the new SASL API.
Tobias Markmann <tm@ayena.de>
parents:
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|
90 |
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
|
91 |
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
|
92 |
end |
295
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93 |
elseif not session.sasl_handler then |
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94 |
return; -- FIXME ignoring out of order stanzas because ejabberd does |
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95 |
end |
284
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96 |
local text = stanza[1]; |
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97 |
if text then |
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98 |
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
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changeset
|
99 |
--log("debug", "AUTH: %s", text:gsub("[%z\001-\008\011\012\014-\031]", " ")); |
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100 |
if not text then |
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101 |
session.sasl_handler = nil; |
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102 |
session.send(build_reply("failure", "incorrect-encoding")); |
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103 |
return; |
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104 |
end |
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|
105 |
end |
2179
c985536d5452
Making mod_saslauth use the new SASL API.
Tobias Markmann <tm@ayena.de>
parents:
1639
diff
changeset
|
106 |
local status, ret, err_msg = session.sasl_handler:process(text); |
3062
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mod_saslauth: Add return value and error message to the Cyrus SASL handle_status callback
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parents:
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107 |
status, ret, err_msg = handle_status(session, status, ret, err_msg); |
1584
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mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
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108 |
local s = build_reply(status, ret, err_msg); |
1072
c7967004b5d0
mod_saslauth: Various logging fixes
Matthew Wild <mwild1@gmail.com>
parents:
1071
diff
changeset
|
109 |
log("debug", "sasl reply: %s", tostring(s)); |
288
dc53343af9ac
Set username in a SASL object.
Tobias Markmann <tm@ayena.de>
parents:
286
diff
changeset
|
110 |
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
|
111 |
end |
4f540755260c
mod_saslauth: Added base64 decoding, encoding check, and cleaned the code up.
Waqas Hussain <waqas20@gmail.com>
parents:
281
diff
changeset
|
112 |
|
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
|
113 |
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
|
114 |
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
|
115 |
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
|
116 |
|
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
|
117 |
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
|
118 |
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
|
119 |
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
|
120 |
module:hook("stream-features", function(event) |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
2451
diff
changeset
|
121 |
local origin, features = event.origin, event.features; |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
2451
diff
changeset
|
122 |
if not origin.username then |
475552b04151
mod_saslauth: Hook stream-features event using new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
2451
diff
changeset
|
123 |
if secure_auth_only and not origin.secure then |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
124 |
return; |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
125 |
end |
3385
192ffdaef491
mod_saslauth: A little cleanup for anonymous_login.
Waqas Hussain <waqas20@gmail.com>
parents:
3363
diff
changeset
|
126 |
if anonymous_login then |
3391
8ac3f60af3c4
mod_saslauth: Got rid of undocumented and useless 'sasl_realm' config option (was only used for anonymous auth, and that didn't make sense).
Waqas Hussain <waqas20@gmail.com>
parents:
3386
diff
changeset
|
127 |
origin.sasl_handler = new_sasl(module.host, anonymous_authentication_profile); |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
128 |
else |
3188
c690e3c5105c
mod_saslauth: Updated to use usermanager.get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents:
3178
diff
changeset
|
129 |
origin.sasl_handler = usermanager_get_sasl_handler(module.host); |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
130 |
end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
131 |
features:tag("mechanisms", mechanisms_attr); |
3417
53e854b52110
mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
Waqas Hussain <waqas20@gmail.com>
parents:
3416
diff
changeset
|
132 |
for mechanism in pairs(origin.sasl_handler:mechanisms()) do |
53e854b52110
mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
Waqas Hussain <waqas20@gmail.com>
parents:
3416
diff
changeset
|
133 |
if mechanism ~= "PLAIN" or origin.secure or allow_unencrypted_plain_auth then |
53e854b52110
mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
Waqas Hussain <waqas20@gmail.com>
parents:
3416
diff
changeset
|
134 |
features:tag("mechanism"):text(mechanism):up(); |
53e854b52110
mod_saslauth: Check for unencrypted PLAIN auth in mod_saslauth instead of the SASL handler (makes it work for Cyrus SASL).
Waqas Hussain <waqas20@gmail.com>
parents:
3416
diff
changeset
|
135 |
end |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
136 |
end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
137 |
features:up(); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
138 |
else |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
139 |
features:tag("bind", bind_attr):tag("required"):up():up(); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
140 |
features:tag("session", xmpp_session_attr):tag("optional"):up():up(); |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
141 |
end |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
142 |
end); |
1584
ffe8a9296e04
mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
Nick Thomas
parents:
1523
diff
changeset
|
143 |
|
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
144 |
module:hook("iq/self/urn:ietf:params:xml:ns:xmpp-bind:bind", function(event) |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
145 |
local origin, stanza = event.origin, event.stanza; |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
146 |
local resource; |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
147 |
if stanza.attr.type == "set" then |
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
148 |
local bind = stanza.tags[1]; |
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
149 |
resource = bind:child_with_name("resource"); |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
150 |
resource = resource and #resource.tags == 0 and resource[1] or nil; |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
151 |
end |
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
152 |
local success, err_type, err, err_msg = sm_bind_resource(origin, resource); |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
153 |
if success then |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
154 |
origin.send(st.reply(stanza) |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
155 |
:tag("bind", { xmlns = xmlns_bind }) |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
156 |
:tag("jid"):text(origin.full_jid)); |
3524
d206b4e0a9f3
mod_saslauth: Improved logging a bit.
Waqas Hussain <waqas20@gmail.com>
parents:
3523
diff
changeset
|
157 |
origin.log("debug", "Resource bound: %s", origin.full_jid); |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
158 |
else |
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
159 |
origin.send(st.error_reply(stanza, err_type, err, err_msg)); |
3524
d206b4e0a9f3
mod_saslauth: Improved logging a bit.
Waqas Hussain <waqas20@gmail.com>
parents:
3523
diff
changeset
|
160 |
origin.log("debug", "Resource bind failed: %s", err_msg or err); |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
161 |
end |
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
162 |
return true; |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
163 |
end); |
1584
ffe8a9296e04
mod_saslauth, usermanager: Fetch list of mechanisms from usermanager
Nick Thomas
parents:
1523
diff
changeset
|
164 |
|
3523
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
165 |
module:hook("iq/self/urn:ietf:params:xml:ns:xmpp-session:session", function(event) |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
166 |
event.origin.send(st.reply(event.stanza)); |
32a0c3816d73
mod_saslauth: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents:
3468
diff
changeset
|
167 |
return true; |
2451
d2f747920eaf
mod_saslauth: Fixed some indentation and added some semi-colons.
Waqas Hussain <waqas20@gmail.com>
parents:
2450
diff
changeset
|
168 |
end); |