diff options
Diffstat (limited to 'plugins/mod_saslauth.lua')
| -rw-r--r-- | plugins/mod_saslauth.lua | 133 |
1 files changed, 93 insertions, 40 deletions
diff --git a/plugins/mod_saslauth.lua b/plugins/mod_saslauth.lua index 4f4f29d4..dd268555 100644 --- a/plugins/mod_saslauth.lua +++ b/plugins/mod_saslauth.lua @@ -2,6 +2,7 @@ local st = require "util.stanza"; local send = require "core.sessionmanager".send_to_session; local sm_bind_resource = require "core.sessionmanager".bind_resource; +local jid local usermanager_validate_credentials = require "core.usermanager".validate_credentials; local t_concat, t_insert = table.concat, table.insert; @@ -15,48 +16,100 @@ local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas'; local new_sasl = require "util.sasl".new; -add_handler("c2s_unauthed", "auth", xmlns_sasl, function (session, stanza) - if not session.sasl_handler then - session.sasl_handler = new_sasl(stanza.attr.mechanism, - function (username, password) - -- onAuth - require "core.usermanager" - if usermanager_validate_credentials(session.host, username, password) then - return true; - end - return false; - end, - function (username) - -- onSuccess - local success, err = sessionmanager.make_authenticated(session, username); - if not success then - sessionmanager.destroy_session(session); - return; - end - session.sasl_handler = nil; - session:reset_stream(); - end, - function (reason) - -- onFail - log("debug", "SASL failure, reason: %s", reason); - end, - function (stanza) - -- onWrite - log("debug", "SASL writes: %s", tostring(stanza)); - send(session, stanza); - end - ); - session.sasl_handler:feed(stanza); +local function build_reply(status, ret) + local reply = st.stanza(status, {xmlns = xmlns_sasl}); + if status == "challenge" then + reply:text(ret or ""); + elseif status == "failure" then + reply:tag(ret):up(); + elseif status == "success" then + reply:text(ret or ""); else - error("Client tried to negotiate SASL again", 0); - end -end); + error("Unknown sasl status: "..status); + end + return reply; +end + +local function handle_status(session, status) + if status == "failure" then + session.sasl_handler = nil; + elseif status == "success" then + session.sasl_handler = nil; + session:reset_stream(); + end +end + +local function password_callback(jid, mechanism) + local node, host = jid_split(jid); + local password = (datamanager.load(node, host, "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, require "hashes".md5(node.."::"..password); + end + end + return func, nil; +end + +add_handler("c2s_unauthed", "auth", xmlns_sasl, + function (session, stanza) + if not session.sasl_handler then + session.sasl_handler = new_sasl(stanza.attr.mechanism, session.host, password_callback); + local status, ret = session.sasl_handler:feed(stanza[1]); + handle_status(session, status); + session.send(build_reply(status, ret)); + --[[session.sasl_handler = new_sasl(stanza.attr.mechanism, + function (username, password) + -- onAuth + require "core.usermanager" + if usermanager_validate_credentials(session.host, username, password) then + return true; + end + return false; + end, + function (username) + -- onSuccess + local success, err = sessionmanager.make_authenticated(session, username); + if not success then + sessionmanager.destroy_session(session); + return; + end + session.sasl_handler = nil; + session:reset_stream(); + end, + function (reason) + -- onFail + log("debug", "SASL failure, reason: %s", reason); + end, + function (stanza) + -- onWrite + log("debug", "SASL writes: %s", tostring(stanza)); + send(session, stanza); + end + ); + session.sasl_handler:feed(stanza); ]] + else + error("Client tried to negotiate SASL again", 0); + end + end); + +add_handler("c2s_unauthed", "abort", xmlns_sasl, + function(session, stanza) + if not session.sasl_handler then error("Attempt to abort when sasl has not started"); end + local status, ret = session.sasl_handler:feed(stanza[1]); + handle_status(session, status); + session.send(build_reply(status, ret)); + end); -add_handler("c2s_unauthed", "response", xmlns_sasl, function (session, stanza) - if session.sasl_handler then - session.sasl_handler:feed(stanza); - end -end); +add_handler("c2s_unauthed", "response", xmlns_sasl, + function(session, stanza) + if not session.sasl_handler then error("Attempt to respond when sasl has not started"); end + local status, ret = session.sasl_handler:feed(stanza[1]); + handle_status(session, status); + session.send(build_reply(status, ret)); + end); add_event_hook("stream-features", function (session, features) |