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-rw-r--r--sleekxmpp/xmlstream/stanzabase.py16
1 files changed, 12 insertions, 4 deletions
diff --git a/sleekxmpp/xmlstream/stanzabase.py b/sleekxmpp/xmlstream/stanzabase.py
index a2826ead..1ff89554 100644
--- a/sleekxmpp/xmlstream/stanzabase.py
+++ b/sleekxmpp/xmlstream/stanzabase.py
@@ -39,15 +39,23 @@ def register_stanza_plugin(stanza, plugin, iterable=False, overrides=False):
the parent stanza.
"""
tag = "{%s}%s" % (plugin.namespace, plugin.name)
+
+ # Prevent weird memory reference gotchas by ensuring
+ # that the parent stanza class has its own set of
+ # plugin info maps and is not using the mappings from
+ # an ancestor class (like ElementBase).
+ plugin_info = ('plugin_attrib_map', 'plugin_tag_map',
+ 'plugin_iterables', 'plugin_overrides')
+ for attr in plugin_info:
+ info = getattr(stanza, attr)
+ setattr(stanza, attr, info.copy())
+
stanza.plugin_attrib_map[plugin.plugin_attrib] = plugin
stanza.plugin_tag_map[tag] = plugin
+
if iterable:
- # Prevent weird memory reference gotchas.
- stanza.plugin_iterables = stanza.plugin_iterables.copy()
stanza.plugin_iterables.add(plugin)
if overrides:
- # Prevent weird memory reference gotchas.
- stanza.plugin_overrides = stanza.plugin_overrides.copy()
for interface in plugin.overrides:
stanza.plugin_overrides[interface] = plugin.plugin_attrib