Add Correction (XEP-0308) support

1 files changed, 48 insertions, 0 deletions

diff --git a/nbxmpp/modules/correction.py b/nbxmpp/modules/correction.py
new file mode 100644
index 0000000..d56bd29
--- /dev/null
+++ b/nbxmpp/modules/correction.py
@@ -0,0 +1,48 @@
+# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
+#
+# This file is part of nbxmpp.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+from nbxmpp.protocol import NS_CORRECT
+from nbxmpp.structs import StanzaHandler
+from nbxmpp.structs import CorrectionData
+
+log = logging.getLogger('nbxmpp.m.correction')
+
+
+class Correction:
+    def __init__(self, client):
+        self._client = client
+        self.handlers = [
+            StanzaHandler(name='message',
+                          callback=self._process_message_correction,
+                          ns=NS_CORRECT,
+                          priority=15),
+        ]
+
+    def _process_message_correction(self, _con, stanza, properties):
+        replace = stanza.getTag('replace', namespace=NS_CORRECT)
+        if replace is None:
+            return
+
+        id_ = replace.getAttr('id')
+        if id_ is None:
+            log.warning('Correcton without id attribute')
+            log.warning(stanza)
+            return
+
+        properties.correction = CorrectionData(id_)