--- Prosody IM v0.1
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
--
--- This program is free software; you can redistribute it and/or
--- modify it under the terms of the GNU General Public License
--- as published by the Free Software Foundation; either version 2
--- of the License, or (at your option) any later version.
---
--- This program is distributed in the hope that it will be useful,
--- but WITHOUT ANY WARRANTY; without even the implied warranty of
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
--- GNU General Public License for more details.
---
--- You should have received a copy of the GNU General Public License
--- along with this program; if not, write to the Free Software
--- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
--
local st = require "util.stanza";
local sm_bind_resource = require "core.sessionmanager".bind_resource;
-local jid
+local sm_make_authenticated = require "core.sessionmanager".make_authenticated;
local base64 = require "util.encodings".base64;
+local datamanager_load = require "util.datamanager".load;
local usermanager_validate_credentials = require "core.usermanager".validate_credentials;
local t_concat, t_insert = table.concat, table.insert;
local tostring = tostring;
local jid_split = require "util.jid".split
local md5 = require "util.hashes".md5;
+local config = require "core.configmanager";
-local log = require "util.logger".init("mod_saslauth");
+local secure_auth_only = config.get(module:get_host(), "core", "require_encryption");
+
+local log = module._log;
local xmlns_sasl ='urn:ietf:params:xml:ns:xmpp-sasl';
local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind';
local function build_reply(status, ret, err_msg)
local reply = st.stanza(status, {xmlns = xmlns_sasl});
if status == "challenge" then
+ log("debug", "%s", ret or "");
reply:text(base64.encode(ret or ""));
elseif status == "failure" then
reply:tag(ret):up();
if err_msg then reply:tag("text"):text(err_msg); end
elseif status == "success" then
+ log("debug", "%s", ret or "");
reply:text(base64.encode(ret or ""));
else
- error("Unknown sasl status: "..status);
+ module:log("error", "Unknown sasl status: %s", status);
end
return reply;
end
if status == "failure" then
session.sasl_handler = nil;
elseif status == "success" then
- if not session.sasl_handler.username then error("SASL succeeded but we didn't get a username!"); end -- TODO move this to sessionmanager
- sessionmanager.make_authenticated(session, session.sasl_handler.username);
+ if not session.sasl_handler.username then -- TODO move this to sessionmanager
+ module:log("warn", "SASL succeeded but we didn't get a username!");
+ session.sasl_handler = nil;
+ session:reset_stream();
+ return;
+ end
+ sm_make_authenticated(session, session.sasl_handler.username);
session.sasl_handler = nil;
session:reset_stream();
end
end
-local function password_callback(node, host, mechanism, raw_host)
- local password = (datamanager.load(node, host, "accounts") or {}).password; -- FIXME handle hashed passwords
+local function password_callback(node, hostname, realm, mechanism, decoder)
+ local password = (datamanager_load(node, hostname, "accounts") or {}).password; -- FIXME handle hashed passwords
local func = function(x) return x; end;
if password then
if mechanism == "PLAIN" then
return func, password;
elseif mechanism == "DIGEST-MD5" then
- return func, md5(node..":"..raw_host..":"..password);
+ if decoder then node, realm, password = decoder(node), decoder(realm), decoder(password); end
+ return func, md5(node..":"..realm..":"..password);
end
end
return func, nil;
end
-function sasl_handler(session, stanza)
+local function sasl_handler(session, stanza)
if stanza.name == "auth" then
-- FIXME ignoring duplicates because ejabberd does
+ if config.get(session.host or "*", "core", "anonymous_login") then
+ if stanza.attr.mechanism ~= "ANONYMOUS" then
+ return session.send(build_reply("failure", "invalid-mechanism"));
+ end
+ elseif stanza.attr.mechanism == "ANONYMOUS" then
+ return session.send(build_reply("failure", "mechanism-too-weak"));
+ end
session.sasl_handler = new_sasl(stanza.attr.mechanism, session.host, password_callback);
+ if not session.sasl_handler then
+ return session.send(build_reply("failure", "invalid-mechanism"));
+ end
elseif not session.sasl_handler then
return; -- FIXME ignoring out of order stanzas because ejabberd does
end
local text = stanza[1];
if text then
text = base64.decode(text);
+ log("debug", "%s", text);
if not text then
session.sasl_handler = nil;
session.send(build_reply("failure", "incorrect-encoding"));
local status, ret, err_msg = session.sasl_handler:feed(text);
handle_status(session, status);
local s = build_reply(status, ret, err_msg);
- log("debug", "sasl reply: "..tostring(s));
+ log("debug", "sasl reply: %s", tostring(s));
session.send(s);
end
local bind_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-bind' };
local xmpp_session_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-session' };
module:add_event_hook("stream-features",
- function (session, features)
- if not session.username then
- features:tag("mechanisms", mechanisms_attr);
- -- 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.
- features:tag("mechanism"):text("PLAIN"):up();
- features:tag("mechanism"):text("DIGEST-MD5"):up();
- features:up();
- else
- features:tag("bind", bind_attr):tag("required"):up():up();
- features:tag("session", xmpp_session_attr):up();
- end
- end);
+ function (session, features)
+ if not session.username then
+ if secure_auth_only and not session.secure then
+ return;
+ end
+ features:tag("mechanisms", mechanisms_attr);
+ -- 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.
+ if config.get(session.host or "*", "core", "anonymous_login") then
+ features:tag("mechanism"):text("ANONYMOUS"):up();
+ else
+ features:tag("mechanism"):text("DIGEST-MD5"):up();
+ features:tag("mechanism"):text("PLAIN"):up();
+ end
+ features:up();
+ else
+ features:tag("bind", bind_attr):tag("required"):up():up();
+ features:tag("session", xmpp_session_attr):up();
+ end
+ end);
module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind",
function (session, stanza)
- log("debug", "Client tried to bind to a resource");
+ log("debug", "Client requesting a resource bind");
local resource;
if stanza.attr.type == "set" then
local bind = stanza.tags[1];
module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-session",
function (session, stanza)
- log("debug", "Client tried to bind to a resource");
+ log("debug", "Client requesting a session");
session.send(st.reply(stanza));
end);
projects / prosody.git / blobdiff