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comparison plugins/mod_saslauth.lua @ 3983:38ec7255b111

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mod_saslauth: Remove special handling for SASL ANONYMOUS, and let mod_auth_anonymous handle it.
author Waqas Hussain <waqas20@gmail.com>
date Tue, 28 Dec 2010 05:28:15 +0500
parents 2b0b8fe68df2
children 05a58497a903 7d100d917243
comparison
equal deleted inserted replaced
3982:a20a41e512f8 3983:38ec7255b111
16 16
17 local cert_verify_identity = require "util.x509".verify_identity; 17 local cert_verify_identity = require "util.x509".verify_identity;
18 18
19 local nodeprep = require "util.encodings".stringprep.nodeprep; 19 local nodeprep = require "util.encodings".stringprep.nodeprep;
20 local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler; 20 local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler;
21 local t_concat, t_insert = table.concat, table.insert;
22 local tostring = tostring; 21 local tostring = tostring;
23 22
24 local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); 23 local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
25 local anonymous_login = module:get_option("anonymous_login");
26 local allow_unencrypted_plain_auth = module:get_option("allow_unencrypted_plain_auth") 24 local allow_unencrypted_plain_auth = module:get_option("allow_unencrypted_plain_auth")
27 25
28 local log = module._log; 26 local log = module._log;
29 27
30 local xmlns_sasl ='urn:ietf:params:xml:ns:xmpp-sasl'; 28 local xmlns_sasl ='urn:ietf:params:xml:ns:xmpp-sasl';
31 local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind'; 29 local xmlns_bind ='urn:ietf:params:xml:ns:xmpp-bind';
32 local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas'; 30 local xmlns_stanzas ='urn:ietf:params:xml:ns:xmpp-stanzas';
33
34 local new_sasl = require "util.sasl".new;
35
36 local anonymous_authentication_profile = {
37 anonymous = function(sasl, username, realm)
38 return true; -- for normal usage you should always return true here
39 end
40 };
41 31
42 local function build_reply(status, ret, err_msg) 32 local function build_reply(status, ret, err_msg)
43 local reply = st.stanza(status, {xmlns = xmlns_sasl}); 33 local reply = st.stanza(status, {xmlns = xmlns_sasl});
44 if status == "challenge" then 34 if status == "challenge" then
45 --log("debug", "CHALLENGE: %s", ret or ""); 35 --log("debug", "CHALLENGE: %s", ret or "");
215 205
216 if session.sasl_handler and session.sasl_handler.selected then 206 if session.sasl_handler and session.sasl_handler.selected then
217 session.sasl_handler = nil; -- allow starting a new SASL negotiation before completing an old one 207 session.sasl_handler = nil; -- allow starting a new SASL negotiation before completing an old one
218 end 208 end
219 if not session.sasl_handler then 209 if not session.sasl_handler then
220 if anonymous_login then 210 session.sasl_handler = usermanager_get_sasl_handler(module.host);
221 session.sasl_handler = new_sasl(module.host, anonymous_authentication_profile);
222 else
223 session.sasl_handler = usermanager_get_sasl_handler(module.host);
224 end
225 end 211 end
226 local mechanism = stanza.attr.mechanism; 212 local mechanism = stanza.attr.mechanism;
227 if anonymous_login then
228 if mechanism ~= "ANONYMOUS" then
229 session.send(build_reply("failure", "invalid-mechanism"));
230 return true;
231 end
232 elseif mechanism == "ANONYMOUS" then
233 session.send(build_reply("failure", "mechanism-too-weak"));
234 return true;
235 end
236 if not session.secure and (secure_auth_only or (mechanism == "PLAIN" and not allow_unencrypted_plain_auth)) then 213 if not session.secure and (secure_auth_only or (mechanism == "PLAIN" and not allow_unencrypted_plain_auth)) then
237 session.send(build_reply("failure", "encryption-required")); 214 session.send(build_reply("failure", "encryption-required"));
238 return true; 215 return true;
239 end 216 end
240 local valid_mechanism = session.sasl_handler:select(mechanism); 217 local valid_mechanism = session.sasl_handler:select(mechanism);
266 local origin, features = event.origin, event.features; 243 local origin, features = event.origin, event.features;
267 if not origin.username then 244 if not origin.username then
268 if secure_auth_only and not origin.secure then 245 if secure_auth_only and not origin.secure then
269 return; 246 return;
270 end 247 end
271 if anonymous_login then 248 origin.sasl_handler = usermanager_get_sasl_handler(module.host);
272 origin.sasl_handler = new_sasl(module.host, anonymous_authentication_profile);
273 else
274 origin.sasl_handler = usermanager_get_sasl_handler(module.host);
275 end
276 features:tag("mechanisms", mechanisms_attr); 249 features:tag("mechanisms", mechanisms_attr);
277 for mechanism in pairs(origin.sasl_handler:mechanisms()) do 250 for mechanism in pairs(origin.sasl_handler:mechanisms()) do
278 if mechanism ~= "PLAIN" or origin.secure or allow_unencrypted_plain_auth then 251 if mechanism ~= "PLAIN" or origin.secure or allow_unencrypted_plain_auth then
279 features:tag("mechanism"):text(mechanism):up(); 252 features:tag("mechanism"):text(mechanism):up();
280 end 253 end