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-rw-r--r--plugins/mod_saslauth.lua133
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)