1 files changed, 108 insertions, 0 deletions
diff --git a/slixmpp/plugins/xep_0059/stanza.py b/slixmpp/plugins/xep_0059/stanza.py
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+++ b/slixmpp/plugins/xep_0059/stanza.py
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+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2010 Nathanael C. Fritz, Erik Reuterborg Larsson
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from slixmpp.xmlstream import ElementBase, ET
+from slixmpp.plugins.xep_0030.stanza.items import DiscoItems
+
+
+class Set(ElementBase):
+
+    """
+    XEP-0059 (Result Set Managment) can be used to manage the
+    results of queries. For example, limiting the number of items
+    per response or starting at certain positions.
+
+    Example set stanzas:
+    <iq type="get">
+      <query xmlns="http://jabber.org/protocol/disco#items">
+        <set xmlns="http://jabber.org/protocol/rsm">
+          <max>2</max>
+        </set>
+      </query>
+    </iq>
+
+    <iq type="result">
+      <query xmlns="http://jabber.org/protocol/disco#items">
+        <item jid="conference.example.com" />
+        <item jid="pubsub.example.com" />
+        <set xmlns="http://jabber.org/protocol/rsm">
+          <first>conference.example.com</first>
+          <last>pubsub.example.com</last>
+        </set>
+      </query>
+    </iq>
+
+    Stanza Interface:
+        first_index -- The index attribute of <first>
+        after       -- The id defining from which item to start
+        before      -- The id defining from which item to
+                       start when browsing backwards
+        max         -- Max amount per response
+        first       -- Id for the first item in the response
+        last        -- Id for the last item in the response
+        index       -- Used to set an index to start from
+        count       -- The number of remote items available
+
+    Methods:
+        set_first_index -- Sets the index attribute for <first> and
+                           creates the element if it doesn't exist
+        get_first_index -- Returns the value of the index
+                           attribute for <first>
+        del_first_index -- Removes the index attribute for <first>
+                           but keeps the element
+        set_before      -- Sets the value of <before>, if the value is True
+                           then the element will be created without a value
+        get_before      -- Returns the value of <before>, if it is
+                           empty it will return True
+
+    """
+    namespace = 'http://jabber.org/protocol/rsm'
+    name = 'set'
+    plugin_attrib = 'rsm'
+    sub_interfaces = set(('first', 'after', 'before', 'count',
+                          'index', 'last', 'max'))
+    interfaces = set(('first_index', 'first', 'after', 'before',
+                      'count', 'index', 'last', 'max'))
+
+    def set_first_index(self, val):
+        fi = self.find("{%s}first" % (self.namespace))
+        if fi is not None:
+            if val:
+                fi.attrib['index'] = val
+            elif 'index' in fi.attrib:
+                del fi.attrib['index']
+        elif val:
+            fi = ET.Element("{%s}first" % (self.namespace))
+            fi.attrib['index'] = val
+            self.xml.append(fi)
+
+    def get_first_index(self):
+        fi = self.find("{%s}first" % (self.namespace))
+        if fi is not None:
+            return fi.attrib.get('index', '')
+
+    def del_first_index(self):
+        fi = self.xml.find("{%s}first" % (self.namespace))
+        if fi is not None:
+            del fi.attrib['index']
+
+    def set_before(self, val):
+        b = self.xml.find("{%s}before" % (self.namespace))
+        if b is None and val is True:
+            self._set_sub_text('{%s}before' % self.namespace, '', True)
+        else:
+            self._set_sub_text('{%s}before' % self.namespace, val)
+
+    def get_before(self):
+        b = self.xml.find("{%s}before" % (self.namespace))
+        if b is not None and not b.text:
+            return True
+        elif b is not None:
+            return b.text
+        else:
+            return None