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