mod_adhoc: Add support for commands only executable by global administrators

[prosody.git] / util / sasl.lua

diff --git a/util/sasl.lua b/util/sasl.lua
index 30e4b5df12ce95a1807f1ad8b4200bc1c2651a11..17d10b804b7b9188a434d2dfe669db078912b905 100644 (file)
--- a/util/sasl.lua
+++ b/util/sasl.lua
@@ -48,7 +48,19 @@ end
 
 -- create a new SASL object which can be used to authenticate clients
 function new(realm, profile)
-       return setmetatable({ profile = profile, realm = realm }, method);
+       local mechanisms = profile.mechanisms;
+       if not mechanisms then
+               mechanisms = {};
+               for backend, f in pairs(profile) do
+                       if backend_mechanism[backend] then
+                               for _, mechanism in ipairs(backend_mechanism[backend]) do
+                                       mechanisms[mechanism] = true;
+                               end
+                       end
+               end
+               profile.mechanisms = mechanisms;
+       end
+       return setmetatable({ profile = profile, realm = realm, mechs = mechanisms }, method);
 end
 
 -- get a fresh clone with the same realm and profile
@@ -58,35 +70,21 @@ end
 
 -- get a list of possible SASL mechanims to use
 function method:mechanisms()
-       local mechanisms = self.mechs;
-       if not mechanisms then
-               mechanisms = {}
-               for backend, f in pairs(self.profile) do
-                       if backend_mechanism[backend] then
-                               for _, mechanism in ipairs(backend_mechanism[backend]) do
-                                       mechanisms[mechanism] = true;
-                               end
-                       end
-               end
-               self.mechs = mechanisms;
-       end
-       return mechanisms;
+       return self.mechs;
 end
 
 -- select a mechanism to use
 function method:select(mechanism)
-       if self.mech_i then
-               return false;
+       if not self.selected and self.mechs[mechanism] then
+               self.selected = mechanism;
+               return true;
        end
-       
-       self.mech_i = mechanisms[self:mechanisms()[mechanism] and mechanism];
-       return (self.mech_i ~= nil);
 end
 
 -- feed new messages to process into the library
 function method:process(message)
        --if message == "" or message == nil then return "failure", "malformed-request" end
-       return self.mech_i(self, message);
+       return mechanisms[self.selected](self, message);
 end
 
 -- load the mechanisms