Fix too fragile EJBCA subjectAltName attribute access

warden_ra/warden_ra.py

@@ -217,7 +217,14 @@ class EjbcaRegistry(OpenSSLRegistry):
     def client_data(self, ejbca_data):
         ejbca_username = ejbca_data["username"]
         username = ejbca_username[:-len(self.username_suffix)] if ejbca_username.endswith(self.username_suffix) else ejbca_username
-        admins = [u if not u.startswith("RFC822NAME") else u[11:] for u in ejbca_data["subjectAltName"].split(",")]
+        try:
+            alt_name = ejbca_data["subjectAltName"]
+        except KeyError:
+            alt_name = None
+        if alt_name:
+            admins = [u if not u.startswith("RFC822NAME") else u[11:] for u in alt_name.split(",")]
+        else:
+            admins = []
         status = self.status_ejbca_to_str.get(ejbca_data["status"], "Other")
         return username, admins, status, None, ejbca_data