1 files changed, 62 insertions, 0 deletions
diff --git a/slixmpp/plugins/xep_0424/retraction.py b/slixmpp/plugins/xep_0424/retraction.py
new file mode 100644
index 00000000..5425a61f
--- /dev/null
+++ b/slixmpp/plugins/xep_0424/retraction.py
@@ -0,0 +1,62 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet <mathieui@mathieui.net>
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+from typing import Optional
+
+from slixmpp import JID, Message
+from slixmpp.exceptions import IqError, IqTimeout
+from slixmpp.plugins import BasePlugin
+from slixmpp.plugins.xep_0424 import stanza
+
+
+DEFAULT_FALLBACK = (
+    'This person attempted to retract a previous message, but your client '
+    'does not support it.'
+)
+
+
+class XEP_0424(BasePlugin):
+    '''XEP-0424: Message Retraction'''
+
+    name = 'xep_0424'
+    description = 'Message Retraction'
+    dependencies = {'xep_0422', 'xep_0030', 'xep_0359', 'xep_0428', 'xep_0334'}
+    stanza = stanza
+    namespace = stanza.NS
+
+    def plugin_init(self) -> None:
+        stanza.register_plugins()
+
+    def session_bind(self, jid):
+        self.xmpp.plugin['xep_0030'].add_feature(feature=stanza.NS)
+
+    def plugin_end(self):
+        self.xmpp.plugin['xep_0030'].del_feature(feature=stanza.NS)
+
+    def send_retraction(self, mto: JID, id: str, mtype: str = 'chat',
+                        include_fallback: bool = True,
+                        fallback_text: Optional[str] = None, *,
+                        mfrom: Optional[JID] = None):
+        """
+        Send a message retraction
+        :param JID mto: The JID to retract the message from
+        :param str id: Message ID to retract
+        :param str mtype: Message type
+        :param bool include_fallback: Whether to include a fallback body
+        :param Optional[str] fallback_text: The contet of the fallback
+            body. None will set the default value.
+        """
+        if fallback_text is None:
+            fallback_text = DEFAULT_FALLBACK
+        msg = self.xmpp.make_message(mto=mto, mtype=mtype, mfrom=mfrom)
+        if include_fallback:
+            msg['body'] = fallback_text
+            msg.enable('fallback')
+        msg['apply_to']['id'] = id
+        msg['apply_to'].enable('retract')
+        msg.enable('store')
+        msg.send()