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authorLance Stout <lancestout@gmail.com>2010-12-09 18:57:27 -0500
committerLance Stout <lancestout@gmail.com>2010-12-09 18:57:27 -0500
commitf4451fe6b72f7cfb9680ead7a608d5ca1bc7e753 (patch)
tree573a5444ac2e8a79c691c2a8dcafc65404f73ba5 /sleekxmpp/plugins/xep_0030.py
parent8d4e77aba60457d44285f1bec0b5131eee7ff247 (diff)
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First pass at a new XEP-0030 plugin.
Now with dynamic node handling goodness. Some things are not quite working yet, in particular: set_items set_info set_identities set_features And still need more unit tests to round things out.
Diffstat (limited to 'sleekxmpp/plugins/xep_0030.py')
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diff --git a/sleekxmpp/plugins/xep_0030.py b/sleekxmpp/plugins/xep_0030.py
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-"""
- SleekXMPP: The Sleek XMPP Library
- Copyright (C) 2010 Nathanael C. Fritz, Lance J.T. Stout
- This file is part of SleekXMPP.
-
- See the file LICENSE for copying permission.
-"""
-
-import logging
-from . import base
-from .. xmlstream.handler.callback import Callback
-from .. xmlstream.matcher.xpath import MatchXPath
-from .. xmlstream.stanzabase import registerStanzaPlugin, ElementBase, ET, JID
-from .. stanza.iq import Iq
-
-
-log = logging.getLogger(__name__)
-
-
-class DiscoInfo(ElementBase):
- namespace = 'http://jabber.org/protocol/disco#info'
- name = 'query'
- plugin_attrib = 'disco_info'
- interfaces = set(('node', 'features', 'identities'))
-
- def getFeatures(self):
- features = []
- featuresXML = self.xml.findall('{%s}feature' % self.namespace)
- for feature in featuresXML:
- features.append(feature.attrib['var'])
- return features
-
- def setFeatures(self, features):
- self.delFeatures()
- for name in features:
- self.addFeature(name)
-
- def delFeatures(self):
- featuresXML = self.xml.findall('{%s}feature' % self.namespace)
- for feature in featuresXML:
- self.xml.remove(feature)
-
- def addFeature(self, feature):
- featureXML = ET.Element('{%s}feature' % self.namespace,
- {'var': feature})
- self.xml.append(featureXML)
-
- def delFeature(self, feature):
- featuresXML = self.xml.findall('{%s}feature' % self.namespace)
- for featureXML in featuresXML:
- if featureXML.attrib['var'] == feature:
- self.xml.remove(featureXML)
-
- def getIdentities(self):
- ids = []
- idsXML = self.xml.findall('{%s}identity' % self.namespace)
- for idXML in idsXML:
- idData = (idXML.attrib['category'],
- idXML.attrib['type'],
- idXML.attrib.get('name', ''))
- ids.append(idData)
- return ids
-
- def setIdentities(self, ids):
- self.delIdentities()
- for idData in ids:
- self.addIdentity(*idData)
-
- def delIdentities(self):
- idsXML = self.xml.findall('{%s}identity' % self.namespace)
- for idXML in idsXML:
- self.xml.remove(idXML)
-
- def addIdentity(self, category, itype, name=''):
- idXML = ET.Element('{%s}identity' % self.namespace)
- idXML.attrib['category'] = category
- idXML.attrib['type'] = itype
- if name:
- idXML.attrib['name'] = name
- self.xml.append(idXML)
-
- def delIdentity(self, category, id_type, name=''):
- idsXML = self.xml.findall('{%s}identity' % self.namespace)
- for idXML in idsXML:
- idData = (idXML.attrib['category'],
- idXML.attrib['type'])
- delId = (category, id_type)
- if idData == delId:
- self.xml.remove(idXML)
-
-
-class DiscoItems(ElementBase):
- namespace = 'http://jabber.org/protocol/disco#items'
- name = 'query'
- plugin_attrib = 'disco_items'
- interfaces = set(('node', 'items'))
-
- def getItems(self):
- items = []
- itemsXML = self.xml.findall('{%s}item' % self.namespace)
- for item in itemsXML:
- itemData = (item.attrib['jid'],
- item.attrib.get('node'),
- item.attrib.get('name'))
- items.append(itemData)
- return items
-
- def setItems(self, items):
- self.delItems()
- for item in items:
- self.addItem(*item)
-
- def delItems(self):
- itemsXML = self.xml.findall('{%s}item' % self.namespace)
- for item in itemsXML:
- self.xml.remove(item)
-
- def addItem(self, jid, node='', name=''):
- itemXML = ET.Element('{%s}item' % self.namespace, {'jid': jid})
- if name:
- itemXML.attrib['name'] = name
- if node:
- itemXML.attrib['node'] = node
- self.xml.append(itemXML)
-
- def delItem(self, jid, node=''):
- itemsXML = self.xml.findall('{%s}item' % self.namespace)
- for itemXML in itemsXML:
- itemData = (itemXML.attrib['jid'],
- itemXML.attrib.get('node', ''))
- itemDel = (jid, node)
- if itemData == itemDel:
- self.xml.remove(itemXML)
-
-
-class DiscoNode(object):
- """
- Collection object for grouping info and item information
- into nodes.
- """
- def __init__(self, name):
- self.name = name
- self.info = DiscoInfo()
- self.items = DiscoItems()
-
- self.info['node'] = name
- self.items['node'] = name
-
- # This is a bit like poor man's inheritance, but
- # to simplify adding information to the node we
- # map node functions to either the info or items
- # stanza objects.
- #
- # We don't want to make DiscoNode inherit from
- # DiscoInfo and DiscoItems because DiscoNode is
- # not an actual stanza, and doing so would create
- # confusion and potential bugs.
-
- self._map(self.items, 'items', ['get', 'set', 'del'])
- self._map(self.items, 'item', ['add', 'del'])
- self._map(self.info, 'identities', ['get', 'set', 'del'])
- self._map(self.info, 'identity', ['add', 'del'])
- self._map(self.info, 'features', ['get', 'set', 'del'])
- self._map(self.info, 'feature', ['add', 'del'])
-
- def isEmpty(self):
- """
- Test if the node contains any information. Useful for
- determining if a node can be deleted.
- """
- ids = self.getIdentities()
- features = self.getFeatures()
- items = self.getItems()
-
- if not ids and not features and not items:
- return True
- return False
-
- def _map(self, obj, interface, access):
- """
- Map functions of the form obj.accessInterface
- to self.accessInterface for each given access type.
- """
- interface = interface.title()
- for access_type in access:
- method = access_type + interface
- if hasattr(obj, method):
- setattr(self, method, getattr(obj, method))
-
-
-class xep_0030(base.base_plugin):
- """
- XEP-0030 Service Discovery
- """
-
- def plugin_init(self):
- self.xep = '0030'
- self.description = 'Service Discovery'
-
- self.xmpp.registerHandler(
- Callback('Disco Items',
- MatchXPath('{%s}iq/{%s}query' % (self.xmpp.default_ns,
- DiscoItems.namespace)),
- self.handle_item_query))
-
- self.xmpp.registerHandler(
- Callback('Disco Info',
- MatchXPath('{%s}iq/{%s}query' % (self.xmpp.default_ns,
- DiscoInfo.namespace)),
- self.handle_info_query))
-
- registerStanzaPlugin(Iq, DiscoInfo)
- registerStanzaPlugin(Iq, DiscoItems)
-
- self.xmpp.add_event_handler('disco_items_request', self.handle_disco_items)
- self.xmpp.add_event_handler('disco_info_request', self.handle_disco_info)
-
- self.nodes = {}
-
- self.add_node('')
- self.add_feature('http://jabber.org/protocol/disco#info', node='')
-
- def add_node(self, node):
- if node not in self.nodes:
- self.nodes[node] = DiscoNode(node)
-
- def del_node(self, node):
- if node in self.nodes:
- del self.nodes[node]
-
- def rename_node(self, node, new_name):
- if new_name not in self.nodes and node in self.nodes:
- self.nodes[new_name] = self.nodes[node]
- self.nodes[new_name].name = new_name
- self.nodes[new_name].info['node'] = new_name
- self.nodes[new_name].items['node'] = new_name
- self.del_node(node)
-
- def handle_item_query(self, iq):
- if iq['type'] == 'get':
- log.debug("Items requested by %s" % iq['from'])
- self.xmpp.event('disco_items_request', iq)
- elif iq['type'] == 'result':
- log.debug("Items result from %s" % iq['from'])
- self.xmpp.event('disco_items', iq)
-
- def handle_info_query(self, iq):
- if iq['type'] == 'get':
- log.debug("Info requested by %s" % iq['from'])
- self.xmpp.event('disco_info_request', iq)
- elif iq['type'] == 'result':
- log.debug("Info result from %s" % iq['from'])
- self.xmpp.event('disco_info', iq)
-
- def handle_disco_info(self, iq, forwarded=False):
- """
- A default handler for disco#info requests. If another
- handler is registered, this one will defer and not run.
- """
- if not forwarded and \
- self.xmpp.event_handled('disco_info_request') > 1:
- return
-
- node_name = iq['disco_info']['node']
- log.debug("Using default handler for disco#info on node '%s'." % node_name)
-
- if node_name in self.nodes:
- node = self.nodes[node_name]
- iq.reply()
- iq['disco_info']['node'] = node_name
-
- identities = node.info['identities']
- if identities:
- iq['disco_info']['identities'] = identities
- else:
- if self.xmpp.is_component:
- iq['disco_info'].addIdentity(
- category='component',
- itype='generic')
- else:
- iq['disco_info'].addIdentity(
- category='client',
- itype='bot')
- log.info("No identity found for node '%'," + \
- "using default, generic identity")
-
- iq['disco_info']['features'] = node.info['features']
- iq.send()
- else:
- log.debug("Node %s requested, but does not exist." % node_name)
- iq.reply().error().setPayload(iq['disco_info'].xml)
- iq['error']['code'] = '404'
- iq['error']['type'] = 'cancel'
- iq['error']['condition'] = 'item-not-found'
- iq.send()
-
- def handle_disco_items(self, iq, forwarded=False):
- """
- A default handler for disco#items requests. If another
- handler is registered, this one will defer and not run.
-
- If this handler is called by your own custom handler with
- forwarded set to True, then it will run as normal.
- """
- if not forwarded and \
- self.xmpp.event_handled('disco_items_request') > 1:
- return
-
- node_name = iq['disco_items']['node']
- log.debug("Using default handler for disco#items on node: '%s'." % node_name)
-
- if node_name in self.nodes:
- node = self.nodes[node_name]
- iq.reply().setPayload(node.items.xml).send()
- else:
- log.debug("Node %s requested, but does not exist." % node_name)
- iq.reply().error().setPayload(iq['disco_items'].xml)
- iq['error']['code'] = '404'
- iq['error']['type'] = 'cancel'
- iq['error']['condition'] = 'item-not-found'
- iq.send()
-
- # Older interface methods for backwards compatibility
-
- def getInfo(self, jid, node='', dfrom=None):
- iq = self.xmpp.Iq()
- iq['type'] = 'get'
- iq['to'] = jid
- iq['from'] = dfrom
- iq['disco_info']['node'] = node
- return iq.send()
-
- def getItems(self, jid, node='', dfrom=None):
- iq = self.xmpp.Iq()
- iq['type'] = 'get'
- iq['to'] = jid
- iq['from'] = dfrom
- iq['disco_items']['node'] = node
- return iq.send()
-
- def add_feature(self, feature, node=''):
- self.add_node(node)
- self.nodes[node].addFeature(feature)
-
- def add_identity(self, category='', itype='', name='', node=''):
- self.add_node(node)
- self.nodes[node].addIdentity(category=category,
- itype=itype,
- name=name)
-
- def add_item(self, jid=None, name='', node='', subnode=''):
- self.add_node(node)
- self.add_node(subnode)
- if jid is None:
- jid = self.xmpp.fulljid
- self.nodes[node].addItem(jid=jid, name=name, node=subnode)