author | Matthew Wild <mwild1@gmail.com> |
Fri, 05 Dec 2008 19:24:01 +0000 | |
changeset 563 | 099d8a102deb |
parent 529 | 631e7d16d22b |
child 565 | 3a49d85cafbc |
permissions | -rw-r--r-- |
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-- Prosody IM v0.1 |
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-- Copyright (C) 2008 Matthew Wild |
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-- Copyright (C) 2008 Waqas Hussain |
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-- |
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-- This program is free software; you can redistribute it and/or |
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-- modify it under the terms of the GNU General Public License |
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-- as published by the Free Software Foundation; either version 2 |
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-- of the License, or (at your option) any later version. |
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-- |
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-- This program is distributed in the hope that it will be useful, |
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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-- GNU General Public License for more details. |
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-- |
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-- You should have received a copy of the GNU General Public License |
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-- along with this program; if not, write to the Free Software |
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-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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-- |
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local st = require "util.stanza"; |
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local sm_bind_resource = require "core.sessionmanager".bind_resource; |
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local jid |
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local base64 = require "util.encodings".base64; |
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local gettime = require "socket".gettime; |
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local usermanager_validate_credentials = require "core.usermanager".validate_credentials; |
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local t_concat, t_insert = table.concat, table.insert; |
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local tostring = tostring; |
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local jid_split = require "util.jid".split |
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local md5 = require "util.hashes".md5; |
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local log = require "util.logger".init("mod_saslauth"); |
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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'; |
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local new_sasl = require "util.sasl".new; |
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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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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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reply:text(base64.encode(ret or "")); |
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else |
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error("Unknown sasl status: "..status); |
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end |
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return reply; |
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end |
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local function handle_status(session, status) |
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if status == "failure" then |
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session.sasl_handler = nil; |
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elseif status == "success" then |
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if not session.sasl_handler.username then error("SASL succeeded but we didn't get a username!"); end -- TODO move this to sessionmanager |
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sessionmanager.make_authenticated(session, session.sasl_handler.username); |
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session.sasl_handler = nil; |
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session:reset_stream(); |
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end |
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end |
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local function password_callback(node, host, mechanism) |
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local password = (datamanager.load(node, host, "accounts") or {}).password; -- FIXME handle hashed passwords |
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local func = function(x) return x; end; |
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if password then |
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if mechanism == "PLAIN" then |
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return func, password; |
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elseif mechanism == "DIGEST-MD5" then |
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return func, md5(node..":"..host..":"..password); |
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end |
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end |
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return func, nil; |
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end |
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function sasl_handler(session, stanza) |
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if stanza.name == "auth" then |
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-- FIXME ignoring duplicates because ejabberd does |
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session.sasl_handler = new_sasl(stanza.attr.mechanism, session.host, password_callback); |
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elseif not session.sasl_handler then |
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return; -- FIXME ignoring out of order stanzas because ejabberd does |
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end |
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local text = stanza[1]; |
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if text then |
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text = base64.decode(text); |
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if not text then |
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session.sasl_handler = nil; |
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session.send(build_reply("failure", "incorrect-encoding")); |
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return; |
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end |
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end |
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local status, ret, err_msg = session.sasl_handler:feed(text); |
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handle_status(session, status); |
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local s = build_reply(status, ret, err_msg); |
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log("debug", "sasl reply: "..tostring(s)); |
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session.send(s); |
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end |
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104 |
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module:add_handler("c2s_unauthed", "auth", xmlns_sasl, sasl_handler); |
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module:add_handler("c2s_unauthed", "abort", xmlns_sasl, sasl_handler); |
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module:add_handler("c2s_unauthed", "response", xmlns_sasl, sasl_handler); |
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108 |
|
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local mechanisms_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-sasl' }; |
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local bind_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-bind' }; |
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local xmpp_session_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-session' }; |
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module:add_event_hook("stream-features", |
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function (session, features) |
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114 |
if not session.username then |
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features:tag("mechanisms", mechanisms_attr); |
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-- TODO: Provide PLAIN only if TLS is active, this is a SHOULD from the introduction of RFC 4616. This behavior could be overridden via configuration but will issuing a warning or so. |
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features:tag("mechanism"):text("PLAIN"):up(); |
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features:tag("mechanism"):text("DIGEST-MD5"):up(); |
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features:up(); |
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else |
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features:tag("bind", bind_attr):tag("required"):up():up(); |
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features:tag("session", xmpp_session_attr):up(); |
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end |
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end); |
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125 |
|
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module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind", |
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function (session, stanza) |
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log("debug", "Client tried to bind to a resource"); |
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local resource; |
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if stanza.attr.type == "set" then |
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local bind = stanza.tags[1]; |
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if bind and bind.attr.xmlns == xmlns_bind then |
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resource = bind:child_with_name("resource"); |
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if resource then |
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resource = resource[1]; |
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136 |
end |
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137 |
end |
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138 |
end |
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139 |
local success, err_type, err, err_msg = sm_bind_resource(session, resource); |
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140 |
if not success then |
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141 |
session.send(st.error_reply(stanza, err_type, err, err_msg)); |
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else |
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session.send(st.reply(stanza) |
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144 |
:tag("bind", { xmlns = xmlns_bind}) |
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145 |
:tag("jid"):text(session.full_jid)); |
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146 |
end |
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147 |
|
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session.log("******", "Connection took "..tostring(session.conntimetotal).." seconds"); |
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149 |
end); |
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150 |
|
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Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
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151 |
module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-session", |
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152 |
function (session, stanza) |
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153 |
log("debug", "Client tried to bind to a resource"); |
313
a273f3a7b8f8
Fixed mod_saslauth to use session.send for sending stanzas
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154 |
session.send(st.reply(stanza)); |
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155 |
end); |