-- Prosody IM
--- Copyright (C) 2008-2009 Matthew Wild
--- Copyright (C) 2008-2009 Waqas Hussain
---
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local base64 = require "util.encodings".base64;
local nodeprep = require "util.encodings".stringprep.nodeprep;
-local datamanager_load = require "util.datamanager".load;
-local usermanager_validate_credentials = require "core.usermanager".validate_credentials;
-local usermanager_get_supported_methods = require "core.usermanager".get_supported_methods;
+local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler;
local usermanager_user_exists = require "core.usermanager".user_exists;
-local usermanager_get_password = require "core.usermanager".get_password;
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 secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
local sasl_backend = module:get_option("sasl_backend") or "builtin";
+local anonymous_login = module:get_option("anonymous_login");
+
+-- Cyrus config options
+local require_provisioning = module:get_option("cyrus_require_provisioning") or false;
+local cyrus_service_realm = module:get_option("cyrus_service_realm");
+local cyrus_service_name = module:get_option("cyrus_service_name");
+local cyrus_application_name = module:get_option("cyrus_application_name");
local log = module._log;
local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind';
local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas';
-local new_sasl
-if sasl_backend == "cyrus" then
- local cyrus_new = require "util.sasl_cyrus".new;
- new_sasl = function(realm)
- return cyrus_new(realm, module:get_option("cyrus_service_name") or "xmpp");
- end
-else
- if sasl_backend ~= "builtin" then module:log("warn", "Unknown SASL backend %s", sasl_backend); end;
+local new_sasl;
+if sasl_backend == "builtin" then
new_sasl = require "util.sasl".new;
-end
-
-local default_authentication_profile = {
- plain = function(username, realm)
- local prepped_username = nodeprep(username);
- if not prepped_username then
- log("debug", "NODEprep failed on username: %s", username);
- return "", nil;
+elseif sasl_backend == "cyrus" then
+ prosody.unlock_globals(); --FIXME: Figure out why this is needed and
+ -- why cyrussasl isn't caught by the sandbox
+ local ok, cyrus = pcall(require, "util.sasl_cyrus");
+ prosody.lock_globals();
+ if ok then
+ local cyrus_new = cyrus.new;
+ new_sasl = function(realm)
+ return cyrus_new(
+ cyrus_service_realm or realm,
+ cyrus_service_name or "xmpp",
+ cyrus_application_name or "prosody"
+ );
end
- local password = usermanager_get_password(prepped_username, realm);
- if not password then
- return "", nil;
- end
- return password, true;
+ else
+ module:log("error", "Failed to load Cyrus SASL because: %s", cyrus);
+ error("Failed to load Cyrus SASL");
end
-};
+else
+ module:log("error", "Unknown SASL backend: %s", sasl_backend);
+ error("Unknown SASL backend");
+end
local anonymous_authentication_profile = {
anonymous = function(username, realm)
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 "");
+ --log("debug", "CHALLENGE: %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 "");
+ --log("debug", "SUCCESS: %s", ret or "");
reply:text(base64.encode(ret or ""));
else
module:log("error", "Unknown sasl status: %s", status);
return reply;
end
-local function handle_status(session, status)
+local function handle_status(session, status, ret, err_msg)
if status == "failure" then
session.sasl_handler = session.sasl_handler:clean_clone();
elseif status == "success" then
local username = nodeprep(session.sasl_handler.username);
- if not 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;
+
+ if not(require_provisioning) or usermanager_user_exists(username, session.host) then
+ local ok, err = sm_make_authenticated(session, session.sasl_handler.username);
+ if ok then
+ session.sasl_handler = nil;
+ session:reset_stream();
+ else
+ module:log("warn", "SASL succeeded but username was invalid");
+ session.sasl_handler = session.sasl_handler:clean_clone();
+ return "failure", "not-authorized", "User authenticated successfully, but username was invalid";
+ end
+ else
+ module:log("warn", "SASL succeeded but we don't have an account provisioned for %s", username);
+ session.sasl_handler = session.sasl_handler:clean_clone();
+ return "failure", "not-authorized", "User authenticated successfully, but not provisioned for XMPP";
end
- sm_make_authenticated(session, session.sasl_handler.username);
- session.sasl_handler = nil;
- session:reset_stream();
end
+ return status, ret, err_msg;
end
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 anonymous_login then
if stanza.attr.mechanism ~= "ANONYMOUS" then
return session.send(build_reply("failure", "invalid-mechanism"));
end
local text = stanza[1];
if text then
text = base64.decode(text);
- log("debug", "%s", text:gsub("[%z\001-\008\011\012\014-\031]", " "));
+ --log("debug", "AUTH: %s", text:gsub("[%z\001-\008\011\012\014-\031]", " "));
if not text then
session.sasl_handler = nil;
session.send(build_reply("failure", "incorrect-encoding"));
end
end
local status, ret, err_msg = session.sasl_handler:process(text);
- handle_status(session, status);
+ status, ret, err_msg = handle_status(session, status, ret, err_msg);
local s = build_reply(status, ret, err_msg);
log("debug", "sasl reply: %s", tostring(s));
session.send(s);
if secure_auth_only and not origin.secure then
return;
end
- if module:get_option("anonymous_login") then
- origin.sasl_handler = new_sasl(origin.host, anonymous_authentication_profile);
+ if anonymous_login then
+ origin.sasl_handler = new_sasl(module.host, anonymous_authentication_profile);
else
- origin.sasl_handler = new_sasl(origin.host, default_authentication_profile);
+ origin.sasl_handler = usermanager_get_sasl_handler(module.host);
if not (module:get_option("allow_unencrypted_plain_auth")) and not origin.secure then
origin.sasl_handler:forbidden({"PLAIN"});
end
end
features:tag("mechanisms", mechanisms_attr);
- for k, v in pairs(origin.sasl_handler:mechanisms()) do
- features:tag("mechanism"):text(v):up();
+ for k in pairs(origin.sasl_handler:mechanisms()) do
+ features:tag("mechanism"):text(k):up();
end
features:up();
else
projects / prosody.git / blobdiff