X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=plugins%2Fmod_saslauth.lua;h=e248479bc9f471651ae786494ba01d12c3c5b8d9;hb=ac9d651d4d068c0f1c863c8d64a895d84bf416b2;hp=754c82b3662e6705289ab55edf0f361ff2415c9e;hpb=7e8208d332fd36b22fdb5075b1ef38296c68cb2d;p=prosody.git diff --git a/plugins/mod_saslauth.lua b/plugins/mod_saslauth.lua index 754c82b3..e248479b 100644 --- a/plugins/mod_saslauth.lua +++ b/plugins/mod_saslauth.lua @@ -1,4 +1,4 @@ --- Prosody IM v0.4 +-- Prosody IM -- Copyright (C) 2008-2009 Matthew Wild -- Copyright (C) 2008-2009 Waqas Hussain -- @@ -12,17 +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 to_unicode = require "util.encodings".idna.to_unicode; +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; @@ -53,30 +56,49 @@ local function handle_status(session, status) if status == "failure" then session.sasl_handler = nil; elseif status == "success" then - if not session.sasl_handler.username then -- TODO move this to sessionmanager + local username = nodeprep(session.sasl_handler.username); + 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 - sm_make_authenticated(session, session.sasl_handler.username); - session.sasl_handler = nil; + sm_make_authenticated(session, username); session:reset_stream(); end end -local function password_callback(node, hostname, realm, mechanism, decoder) - local password = (datamanager_load(node, to_unicode(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 - if decoder then node, hostname, password = decoder(node), decoder(hostname), 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 + local 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) @@ -89,10 +111,13 @@ 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 + if secure_auth_only and not session.secure then + return session.send(build_reply("failure", "encryption-required")); + end elseif not session.sasl_handler then return; -- FIXME ignoring out of order stanzas because ejabberd does end @@ -108,7 +133,7 @@ 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 @@ -120,8 +145,8 @@ 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; @@ -131,17 +156,19 @@ 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(); + local 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 features:tag("bind", bind_attr):tag("required"):up():up(); - features:tag("session", xmpp_session_attr):up(); + features:tag("session", xmpp_session_attr):tag("optional"):up():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; @@ -163,8 +190,8 @@ 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));