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-rw-r--r--util/stanza.lua3
1 files changed, 3 insertions, 0 deletions
diff --git a/util/stanza.lua b/util/stanza.lua
index 919d983c..24fd4fea 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -448,6 +448,9 @@ end
local xmpp_stanzas_attr = { xmlns = xmlns_stanzas };
local function error_reply(orig, error_type, condition, error_message)
+ if not is_stanza(orig) then
+ error("bad argument to error_reply: expected stanza, got "..type(orig));
+ end
local t = reply(orig);
t.attr.type = "error";
t:tag("error", {type = error_type}) --COMPAT: Some day xmlns:stanzas goes here