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-rw-r--r--plugins/mod_saslauth.lua69
1 files changed, 45 insertions, 24 deletions
diff --git a/plugins/mod_saslauth.lua b/plugins/mod_saslauth.lua
index f196e483..dc310e18 100644
--- a/plugins/mod_saslauth.lua
+++ b/plugins/mod_saslauth.lua
@@ -12,16 +12,20 @@ local st = require "util.stanza";
local sm_bind_resource = require "core.sessionmanager".bind_resource;
local sm_make_authenticated = require "core.sessionmanager".make_authenticated;
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_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 = config.get(module:get_host(), "core", "require_encryption");
+local secure_auth_only = config.get(module:get_host(), "core", "c2s_require_encryption") or config.get(module:get_host(), "core", "require_encryption");
local log = module._log;
@@ -56,6 +60,7 @@ local function handle_status(session, status)
session.sasl_handler = nil;
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;
end
@@ -64,22 +69,36 @@ local function handle_status(session, status)
end
end
-local function password_callback(node, hostname, realm, mechanism, decoder)
- local func = function(x) return x; end;
- local node = nodeprep(node);
- if not node then
- return func, nil;
- end
- local password = (datamanager_load(node, hostname, "accounts") or {}).password; -- FIXME handle hashed passwords
- if password then
- if mechanism == "PLAIN" then
- return func, password;
- elseif mechanism == "DIGEST-MD5" then
- if decoder then node, realm, password = decoder(node), decoder(realm), decoder(password); end
+local function credentials_callback(mechanism, ...)
+ if mechanism == "PLAIN" then
+ local username, hostname, password = ...;
+ username = nodeprep(username);
+ if not username then
+ return false;
+ end
+ local response = usermanager_validate_credentials(hostname, username, password, mechanism);
+ if response == nil then
+ return false;
+ else
+ return response;
+ end
+ elseif mechanism == "DIGEST-MD5" then
+ function func(x) return x; end
+ local node, domain, realm, decoder = ...;
+ local prepped_node = nodeprep(node);
+ if not prepped_node then
+ return func, nil;
+ end
+ local password = usermanager_get_password(prepped_node, domain);
+ if password then
+ if decoder then
+ node, realm, password = decoder(node), decoder(realm), decoder(password);
+ end
return func, md5(node..":"..realm..":"..password);
+ else
+ return func, nil;
end
end
- return func, nil;
end
local function sasl_handler(session, stanza)
@@ -92,7 +111,7 @@ local function sasl_handler(session, stanza)
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);
+ session.sasl_handler = new_sasl(stanza.attr.mechanism, session.host, credentials_callback);
if not session.sasl_handler then
return session.send(build_reply("failure", "invalid-mechanism"));
end
@@ -111,7 +130,7 @@ local function sasl_handler(session, stanza)
end
local status, ret, err_msg = session.sasl_handler:feed(text);
handle_status(session, status);
- local s = build_reply(status, ret, err_msg);
+ local s = build_reply(status, ret, err_msg);
log("debug", "sasl reply: %s", tostring(s));
session.send(s);
end
@@ -123,8 +142,8 @@ module:add_handler("c2s_unauthed", "response", xmlns_sasl, sasl_handler);
local mechanisms_attr = { xmlns='urn:ietf:params:xml:ns:xmpp-sasl' };
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)
+module:add_event_hook("stream-features",
+ function (session, features)
if not session.username then
if secure_auth_only and not session.secure then
return;
@@ -134,8 +153,10 @@ module:add_event_hook("stream-features",
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();
+ mechanisms = usermanager_get_supported_methods(session.host or "*");
+ for k, v in pairs(mechanisms) do
+ features:tag("mechanism"):text(k):up();
+ end
end
features:up();
else
@@ -143,8 +164,8 @@ module:add_event_hook("stream-features",
features:tag("session", xmpp_session_attr):up();
end
end);
-
-module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind",
+
+module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind",
function (session, stanza)
log("debug", "Client requesting a resource bind");
local resource;
@@ -166,8 +187,8 @@ module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-bind",
:tag("jid"):text(session.full_jid));
end
end);
-
-module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-session",
+
+module:add_iq_handler("c2s", "urn:ietf:params:xml:ns:xmpp-session",
function (session, stanza)
log("debug", "Client requesting a session");
session.send(st.reply(stanza));