diff options
Diffstat (limited to 'plugins/mod_saslauth.lua')
| -rw-r--r-- | plugins/mod_saslauth.lua | 69 |
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)); |