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-rw-r--r--util/sasl/oauthbearer.lua4
1 files changed, 4 insertions, 0 deletions
diff --git a/util/sasl/oauthbearer.lua b/util/sasl/oauthbearer.lua
index ea8da198..54c63575 100644
--- a/util/sasl/oauthbearer.lua
+++ b/util/sasl/oauthbearer.lua
@@ -34,6 +34,10 @@ local function oauthbearer(self, message)
local username = jid.prepped_split(gs2_authzid);
+ if not username or username == "" then
+ return "failure", "malformed-request", "Expected authorization identity in the username@hostname format";
+ end
+
-- SASLprep username
username = saslprep(username);