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# -*- coding: utf-8 -*-
"""
sleekxmpp.xmlstream.matcher.id
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Part of SleekXMPP: The Sleek XMPP Library
:copyright: (c) 2011 Nathanael C. Fritz
:license: MIT, see LICENSE for more details
"""
from sleekxmpp.xmlstream.matcher.base import MatcherBase
class MatchIDSender(MatcherBase):
"""
The IDSender matcher selects stanzas that have the same stanza 'id'
interface value as the desired ID, and that the 'from' value is one
of a set of approved entities that can respond to a request.
"""
def match(self, xml):
"""Compare the given stanza's ``'id'`` attribute to the stored
``id`` value, and verify the sender's JID.
:param xml: The :class:`~sleekxmpp.xmlstream.stanzabase.ElementBase`
stanza to compare against.
"""
selfjid = self._criteria['self']
peerjid = self._criteria['peer']
allowed = {}
allowed[''] = True
allowed[selfjid.bare] = True
allowed[selfjid.host] = True
allowed[peerjid.full] = True
allowed[peerjid.bare] = True
allowed[peerjid.host] = True
_from = xml['from']
try:
return xml['id'] == self._criteria['id'] and allowed[_from]
except KeyError:
return False
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