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authorFlorent Le Coz <louiz@louiz.org>2014-07-17 14:19:04 +0200
committerFlorent Le Coz <louiz@louiz.org>2014-07-17 14:19:04 +0200
commit5ab77c745270d7d5c016c1dc7ef2a82533a4b16e (patch)
tree259377cc666f8b9c7954fc4e7b8f7a912bcfe101 /sleekxmpp/plugins/xep_0030/static.py
parente5582694c07236e6830c20361840360a1dde37f3 (diff)
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Rename to slixmpp
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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
-import threading
-
-from sleekxmpp import Iq
-from sleekxmpp.exceptions import XMPPError, IqError, IqTimeout
-from sleekxmpp.xmlstream import JID
-from sleekxmpp.plugins.xep_0030 import DiscoInfo, DiscoItems
-
-
-log = logging.getLogger(__name__)
-
-
-class StaticDisco(object):
-
- """
- While components will likely require fully dynamic handling
- of service discovery information, most clients and simple bots
- only need to manage a few disco nodes that will remain mostly
- static.
-
- StaticDisco provides a set of node handlers that will store
- static sets of disco info and items in memory.
-
- Attributes:
- nodes -- A dictionary mapping (JID, node) tuples to a dict
- containing a disco#info and a disco#items stanza.
- xmpp -- The main SleekXMPP object.
- """
-
- def __init__(self, xmpp, disco):
- """
- Create a static disco interface. Sets of disco#info and
- disco#items are maintained for every given JID and node
- combination. These stanzas are used to store disco
- information in memory without any additional processing.
-
- Arguments:
- xmpp -- The main SleekXMPP object.
- """
- self.nodes = {}
- self.xmpp = xmpp
- self.disco = disco
- self.lock = threading.RLock()
-
- def add_node(self, jid=None, node=None, ifrom=None):
- """
- Create a new set of stanzas for the provided
- JID and node combination.
-
- Arguments:
- jid -- The JID that will own the new stanzas.
- node -- The node that will own the new stanzas.
- """
- with self.lock:
- if jid is None:
- jid = self.xmpp.boundjid.full
- if node is None:
- node = ''
- if ifrom is None:
- ifrom = ''
- if isinstance(ifrom, JID):
- ifrom = ifrom.full
- if (jid, node, ifrom) not in self.nodes:
- self.nodes[(jid, node, ifrom)] = {'info': DiscoInfo(),
- 'items': DiscoItems()}
- self.nodes[(jid, node, ifrom)]['info']['node'] = node
- self.nodes[(jid, node, ifrom)]['items']['node'] = node
-
- def get_node(self, jid=None, node=None, ifrom=None):
- with self.lock:
- if jid is None:
- jid = self.xmpp.boundjid.full
- if node is None:
- node = ''
- if ifrom is None:
- ifrom = ''
- if isinstance(ifrom, JID):
- ifrom = ifrom.full
- if (jid, node, ifrom) not in self.nodes:
- self.add_node(jid, node, ifrom)
- return self.nodes[(jid, node, ifrom)]
-
- def node_exists(self, jid=None, node=None, ifrom=None):
- with self.lock:
- if jid is None:
- jid = self.xmpp.boundjid.full
- if node is None:
- node = ''
- if ifrom is None:
- ifrom = ''
- if isinstance(ifrom, JID):
- ifrom = ifrom.full
- if (jid, node, ifrom) not in self.nodes:
- return False
- return True
-
- # =================================================================
- # Node Handlers
- #
- # Each handler accepts four arguments: jid, node, ifrom, and data.
- # The jid and node parameters together determine the set of info
- # and items stanzas that will be retrieved or added. Additionally,
- # the ifrom value allows for cached results when results vary based
- # on the requester's JID. The data parameter is a dictionary with
- # additional parameters that will be passed to other calls.
- #
- # This implementation does not allow different responses based on
- # the requester's JID, except for cached results. To do that,
- # register a custom node handler.
-
- def supports(self, jid, node, ifrom, data):
- """
- Check if a JID supports a given feature.
-
- The data parameter may provide:
- feature -- The feature to check for support.
- local -- If true, then the query is for a JID/node
- combination handled by this Sleek instance and
- no stanzas need to be sent.
- Otherwise, a disco stanza must be sent to the
- remove JID to retrieve the info.
- cached -- If true, then look for the disco info data from
- the local cache system. If no results are found,
- send the query as usual. The self.use_cache
- setting must be set to true for this option to
- be useful. If set to false, then the cache will
- be skipped, even if a result has already been
- cached. Defaults to false.
- """
- feature = data.get('feature', None)
-
- data = {'local': data.get('local', False),
- 'cached': data.get('cached', True)}
-
- if not feature:
- return False
-
- try:
- info = self.disco.get_info(jid=jid, node=node,
- ifrom=ifrom, **data)
- info = self.disco._wrap(ifrom, jid, info, True)
- features = info['disco_info']['features']
- return feature in features
- except IqError:
- return False
- except IqTimeout:
- return None
-
- def has_identity(self, jid, node, ifrom, data):
- """
- Check if a JID has a given identity.
-
- The data parameter may provide:
- category -- The category of the identity to check.
- itype -- The type of the identity to check.
- lang -- The language of the identity to check.
- local -- If true, then the query is for a JID/node
- combination handled by this Sleek instance and
- no stanzas need to be sent.
- Otherwise, a disco stanza must be sent to the
- remove JID to retrieve the info.
- cached -- If true, then look for the disco info data from
- the local cache system. If no results are found,
- send the query as usual. The self.use_cache
- setting must be set to true for this option to
- be useful. If set to false, then the cache will
- be skipped, even if a result has already been
- cached. Defaults to false.
- """
- identity = (data.get('category', None),
- data.get('itype', None),
- data.get('lang', None))
-
- data = {'local': data.get('local', False),
- 'cached': data.get('cached', True)}
-
- try:
- info = self.disco.get_info(jid=jid, node=node,
- ifrom=ifrom, **data)
- info = self.disco._wrap(ifrom, jid, info, True)
- trunc = lambda i: (i[0], i[1], i[2])
- return identity in map(trunc, info['disco_info']['identities'])
- except IqError:
- return False
- except IqTimeout:
- return None
-
- def get_info(self, jid, node, ifrom, data):
- """
- Return the stored info data for the requested JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if not self.node_exists(jid, node):
- if not node:
- return DiscoInfo()
- else:
- raise XMPPError(condition='item-not-found')
- else:
- return self.get_node(jid, node)['info']
-
- def set_info(self, jid, node, ifrom, data):
- """
- Set the entire info stanza for a JID/node at once.
-
- The data parameter is a disco#info substanza.
- """
- with self.lock:
- self.add_node(jid, node)
- self.get_node(jid, node)['info'] = data
-
- def del_info(self, jid, node, ifrom, data):
- """
- Reset the info stanza for a given JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if self.node_exists(jid, node):
- self.get_node(jid, node)['info'] = DiscoInfo()
-
- def get_items(self, jid, node, ifrom, data):
- """
- Return the stored items data for the requested JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if not self.node_exists(jid, node):
- if not node:
- return DiscoItems()
- else:
- raise XMPPError(condition='item-not-found')
- else:
- return self.get_node(jid, node)['items']
-
- def set_items(self, jid, node, ifrom, data):
- """
- Replace the stored items data for a JID/node combination.
-
- The data parameter may provide:
- items -- A set of items in tuple format.
- """
- with self.lock:
- items = data.get('items', set())
- self.add_node(jid, node)
- self.get_node(jid, node)['items']['items'] = items
-
- def del_items(self, jid, node, ifrom, data):
- """
- Reset the items stanza for a given JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if self.node_exists(jid, node):
- self.get_node(jid, node)['items'] = DiscoItems()
-
- def add_identity(self, jid, node, ifrom, data):
- """
- Add a new identity to te JID/node combination.
-
- The data parameter may provide:
- category -- The general category to which the agent belongs.
- itype -- A more specific designation with the category.
- name -- Optional human readable name for this identity.
- lang -- Optional standard xml:lang value.
- """
- with self.lock:
- self.add_node(jid, node)
- self.get_node(jid, node)['info'].add_identity(
- data.get('category', ''),
- data.get('itype', ''),
- data.get('name', None),
- data.get('lang', None))
-
- def set_identities(self, jid, node, ifrom, data):
- """
- Add or replace all identities for a JID/node combination.
-
- The data parameter should include:
- identities -- A list of identities in tuple form:
- (category, type, name, lang)
- """
- with self.lock:
- identities = data.get('identities', set())
- self.add_node(jid, node)
- self.get_node(jid, node)['info']['identities'] = identities
-
- def del_identity(self, jid, node, ifrom, data):
- """
- Remove an identity from a JID/node combination.
-
- The data parameter may provide:
- category -- The general category to which the agent belonged.
- itype -- A more specific designation with the category.
- name -- Optional human readable name for this identity.
- lang -- Optional, standard xml:lang value.
- """
- with self.lock:
- if self.node_exists(jid, node):
- self.get_node(jid, node)['info'].del_identity(
- data.get('category', ''),
- data.get('itype', ''),
- data.get('name', None),
- data.get('lang', None))
-
- def del_identities(self, jid, node, ifrom, data):
- """
- Remove all identities from a JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if self.node_exists(jid, node):
- del self.get_node(jid, node)['info']['identities']
-
- def add_feature(self, jid, node, ifrom, data):
- """
- Add a feature to a JID/node combination.
-
- The data parameter should include:
- feature -- The namespace of the supported feature.
- """
- with self.lock:
- self.add_node(jid, node)
- self.get_node(jid, node)['info'].add_feature(
- data.get('feature', ''))
-
- def set_features(self, jid, node, ifrom, data):
- """
- Add or replace all features for a JID/node combination.
-
- The data parameter should include:
- features -- The new set of supported features.
- """
- with self.lock:
- features = data.get('features', set())
- self.add_node(jid, node)
- self.get_node(jid, node)['info']['features'] = features
-
- def del_feature(self, jid, node, ifrom, data):
- """
- Remove a feature from a JID/node combination.
-
- The data parameter should include:
- feature -- The namespace of the removed feature.
- """
- with self.lock:
- if self.node_exists(jid, node):
- self.get_node(jid, node)['info'].del_feature(
- data.get('feature', ''))
-
- def del_features(self, jid, node, ifrom, data):
- """
- Remove all features from a JID/node combination.
-
- The data parameter is not used.
- """
- with self.lock:
- if not self.node_exists(jid, node):
- return
- del self.get_node(jid, node)['info']['features']
-
- def add_item(self, jid, node, ifrom, data):
- """
- Add an item to a JID/node combination.
-
- The data parameter may include:
- ijid -- The JID for the item.
- inode -- Optional additional information to reference
- non-addressable items.
- name -- Optional human readable name for the item.
- """
- with self.lock:
- self.add_node(jid, node)
- self.get_node(jid, node)['items'].add_item(
- data.get('ijid', ''),
- node=data.get('inode', ''),
- name=data.get('name', ''))
-
- def del_item(self, jid, node, ifrom, data):
- """
- Remove an item from a JID/node combination.
-
- The data parameter may include:
- ijid -- JID of the item to remove.
- inode -- Optional extra identifying information.
- """
- with self.lock:
- if self.node_exists(jid, node):
- self.get_node(jid, node)['items'].del_item(
- data.get('ijid', ''),
- node=data.get('inode', None))
-
- def cache_info(self, jid, node, ifrom, data):
- """
- Cache disco information for an external JID.
-
- The data parameter is the Iq result stanza
- containing the disco info to cache, or
- the disco#info substanza itself.
- """
- with self.lock:
- if isinstance(data, Iq):
- data = data['disco_info']
-
- self.add_node(jid, node, ifrom)
- self.get_node(jid, node, ifrom)['info'] = data
-
- def get_cached_info(self, jid, node, ifrom, data):
- """
- Retrieve cached disco info data.
-
- The data parameter is not used.
- """
- with self.lock:
- if not self.node_exists(jid, node, ifrom):
- return None
- else:
- return self.get_node(jid, node, ifrom)['info']