imprv: CommonError: Add 'by' attribute

1 files changed, 8 insertions, 0 deletions

diff --git a/nbxmpp/structs.py b/nbxmpp/structs.py
index 5f77de2..a673932 100644
--- a/nbxmpp/structs.py
+++ b/nbxmpp/structs.py
@@ -773,10 +773,18 @@ class CommonError:
         self.condition_data = self._error_node.getTagData(self.condition)
         self.app_condition = stanza.getAppError()
         self.type = stanza.getErrorType()
+        self.by = None
         self.jid = stanza.getFrom()
         self.id = stanza.getID()
         self._text = {}
 
+        by = self._error_node.getAttr('by')
+        if by is not None:
+            try:
+                self.by = JID.from_string(by)
+            except Exception:
+                pass
+
         text_elements = self._error_node.getTags('text', namespace=Namespace.STANZAS)
         for element in text_elements:
             lang = element.getXmlLang()