diff options
Diffstat (limited to 'plugins/mod_saslauth.lua')
| -rw-r--r-- | plugins/mod_saslauth.lua | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/plugins/mod_saslauth.lua b/plugins/mod_saslauth.lua index 9e63b4c7..e42adbe1 100644 --- a/plugins/mod_saslauth.lua +++ b/plugins/mod_saslauth.lua @@ -16,8 +16,10 @@ local base64 = require "util.encodings".base64; local usermanager_get_sasl_handler = require "core.usermanager".get_sasl_handler; local tostring = tostring; -local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); -local allow_unencrypted_plain_auth = module:get_option("allow_unencrypted_plain_auth") +local secure_auth_only = module:get_option_boolean("c2s_require_encryption", module:get_option_boolean("require_encryption", false)); +local allow_unencrypted_plain_auth = module:get_option_boolean("allow_unencrypted_plain_auth", false) +local insecure_mechanisms = module:get_option_set("insecure_sasl_mechanisms", allow_unencrypted_plain_auth and {} or {"PLAIN", "LOGIN"}); +local disabled_mechanisms = module:get_option_set("disable_sasl_mechanisms", {}); local log = module._log; @@ -183,9 +185,12 @@ module:hook("stanza/urn:ietf:params:xml:ns:xmpp-sasl:auth", function(event) session.sasl_handler = usermanager_get_sasl_handler(module.host, session); end local mechanism = stanza.attr.mechanism; - if not session.secure and (secure_auth_only or (mechanism == "PLAIN" and not allow_unencrypted_plain_auth)) then + if not session.secure and (secure_auth_only or insecure_mechanisms:contains(mechanism)) then session.send(build_reply("failure", "encryption-required")); return true; + elseif disabled_mechanisms:contains(mechanism) then + session.send(build_reply("failure", "invalid-mechanism")); + return true; end local valid_mechanism = session.sasl_handler:select(mechanism); if not valid_mechanism then @@ -231,11 +236,15 @@ module:hook("stream-features", function(event) end local mechanisms = st.stanza("mechanisms", mechanisms_attr); for mechanism in pairs(origin.sasl_handler:mechanisms()) do - if mechanism ~= "PLAIN" or origin.secure or allow_unencrypted_plain_auth then + if (not disabled_mechanisms:contains(mechanism)) and (origin.secure or not insecure_mechanisms:contains(mechanism)) then mechanisms:tag("mechanism"):text(mechanism):up(); end end - if mechanisms[1] then features:add_child(mechanisms); end + if mechanisms[1] then + features:add_child(mechanisms); + else + (origin.log or log)("warn", "No SASL mechanisms to offer"); + end else features:tag("bind", bind_attr):tag("required"):up():up(); features:tag("session", xmpp_session_attr):tag("optional"):up():up(); |