mod_component: xpcall() stanza processing, as per other listeners, preventing potenti...

diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua
index 871a20e4a28f27a1f01507d5829c29c850d7f7ba..2fde57ee1610fac7b521b65635178896529ecccb 100644 (file)
--- a/plugins/mod_component.lua
+++ b/plugins/mod_component.lua
@@ -9,6 +9,7 @@
 module:set_global();
 
 local t_concat = table.concat;
+local traceback = debug.traceback;
 
 local logger = require "util.logger";
 local sha1 = require "util.hashes".sha1;
@@ -183,6 +184,7 @@ function stream_callbacks.streamclosed(session)
        session:close();
 end
 
+local function handleerr(err) log("error", "Traceback[component]: %s", traceback(tostring(err), 2)); end
 function stream_callbacks.handlestanza(session, stanza)
        -- Namespaces are icky.
        if not stanza.attr.xmlns and stanza.name == "handshake" then
@@ -213,7 +215,10 @@ function stream_callbacks.handlestanza(session, stanza)
                        return;
                end
        end
-       return core_process_stanza(session, stanza);
+
+       if stanza then
+               return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
+       end
 end
 
 --- Closing a component connection