Add support for XEP-0013: Flexible Offline Message Retrieval

sleekxmpp/plugins/xep_0013/offline.py

@@ -0,0 +1,134 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2012 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permissio
+"""
+
+import logging
+
+import sleekxmpp
+from sleekxmpp.stanza import Message, Iq
+from sleekxmpp.exceptions import XMPPError
+from sleekxmpp.xmlstream.handler import Collector
+from sleekxmpp.xmlstream.matcher import StanzaPath
+from sleekxmpp.xmlstream import register_stanza_plugin
+from sleekxmpp.plugins import BasePlugin
+from sleekxmpp.plugins.xep_0013 import stanza
+
+
+log = logging.getLogger(__name__)
+
+
+class XEP_0013(BasePlugin):
+
+    """
+    XEP-0013 Flexible Offline Message Retrieval
+    """
+
+    name = 'xep_0013'
+    description = 'XEP-0013: Flexible Offline Message Retrieval'
+    dependencies = set(['xep_0030'])
+    stanza = stanza
+
+    def plugin_init(self):
+        register_stanza_plugin(Iq, stanza.Offline)
+        register_stanza_plugin(Message, stanza.Offline)
+
+    def get_count(self, **kwargs):
+        return self.xmpp['xep_0030'].get_info(
+                node='http://jabber.org/protocol/offline',
+                local=False,
+                **kwargs)
+
+    def get_headers(self, **kwargs):
+        return self.xmpp['xep_0030'].get_items(
+                node='http://jabber.org/protocol/offline',
+                local=False,
+                **kwargs)
+
+    def view(self, nodes, ifrom=None, block=True, timeout=None, callback=None):
+        if not isinstance(nodes, (list, set)):
+            nodes = [nodes]
+
+        iq = self.xmpp.Iq()
+        iq['type'] = 'get'
+        iq['from'] = ifrom
+        offline = iq['offline']
+        for node in nodes:
+            item = stanza.Item()
+            item['node'] = node
+            item['action'] = 'view'
+            offline.append(item)
+
+        collector = Collector(
+            'Offline_Results_%s' % iq['id'],
+            StanzaPath('message/offline'))
+        self.xmpp.register_handler(collector)
+
+        if not block and callback is not None:
+            def wrapped_cb(iq):
+                results = collector.stop()
+                if iq['type'] == 'result':
+                    iq['offline']['results'] = results
+                callback(iq)
+            return iq.send(block=block, timeout=timeout, callback=wrapped_cb)
+        else:
+            try:
+                resp = iq.send(block=block, timeout=timeout, callback=callback)
+                resp['offline']['results'] = collector.stop()
+                return resp
+            except XMPPError as e:
+                collector.stop()
+                raise e
+
+    def remove(self, nodes, ifrom=None, block=True, timeout=None, callback=None):
+        if not isinstance(nodes, (list, set)):
+            nodes = [nodes]
+
+        iq = self.xmpp.Iq()
+        iq['type'] = 'set'
+        iq['from'] = ifrom
+        offline = iq['offline']
+        for node in nodes:
+            item = stanza.Item()
+            item['node'] = node
+            item['action'] = 'remove'
+            offline.append(item)
+
+        return iq.send(block=block, timeout=timeout, callback=callback)
+
+    def fetch(self, ifrom=None, block=True, timeout=None, callback=None):
+        iq = self.xmpp.Iq()
+        iq['type'] = 'set'
+        iq['from'] = ifrom
+        iq['offline']['fetch'] = True
+
+        collector = Collector(
+            'Offline_Results_%s' % iq['id'],
+            StanzaPath('message/offline'))
+        self.xmpp.register_handler(collector)
+
+        if not block and callback is not None:
+            def wrapped_cb(iq):
+                results = collector.stop()
+                if iq['type'] == 'result':
+                    iq['offline']['results'] = results
+                callback(iq)
+            return iq.send(block=block, timeout=timeout, callback=wrapped_cb)
+        else:
+            try:
+                resp = iq.send(block=block, timeout=timeout, callback=callback)
+                resp['offline']['results'] = collector.stop()
+                return resp
+            except XMPPError as e:
+                collector.stop()
+                raise e
+
+    def purge(self, ifrom=None, block=True, timeout=None, callback=None):
+        iq = self.xmpp.Iq()
+        iq['type'] = 'set'
+        iq['from'] = ifrom
+        iq['offline']['purge'] = True
+        return iq.send(block=block, timeout=timeout, callback=callback)