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Add 'supports' and 'has_identity' node handlers.

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This commit is contained in:
Lance Stout 2011-12-30 20:52:44 -05:00
parent efae8f3369
commit a7df76a275
2 changed files with 129 additions and 11 deletions
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53
sleekxmpp/plugins/xep_0030/disco.py
View file

@ -116,7 +116,7 @@ class xep_0030(base_plugin):
'get_items', 'set_items', 'del_items', 'add_identity',
'del_identity', 'add_feature', 'del_feature', 'add_item',
'del_item', 'del_identities', 'del_features', 'cache_info',
'get_cached_info']
'get_cached_info', 'supports', 'has_identity']
self.default_handlers = {}
self._handlers = {}
@ -270,16 +270,47 @@ class xep_0030(base_plugin):
cached. Defaults to false.
ifrom -- Specifiy the sender's JID.
"""
try:
info = self.get_info(jid=jid, node=node, local=local,
cached=cached, ifrom=ifrom)
info = self._wrap(ifrom, jid, info, True)
features = info['disco_info']['features']
return feature in features
except IqError:
return False
except IqTimeout:
return None
data = {'feature': feature,
'local': local,
'cached': cached}
return self._run_node_handler('supports', jid, node, ifrom, data)
def has_identity(self, jid=None, node=None, category=None, itype=None,
lang=None, local=False, cached=True, ifrom=None):
"""
Check if a JID provides a given identity.
Return values:
True -- The identity is provided
False -- The identity is not listed
None -- Nothing could be found due to a timeout
Arguments:
jid -- Request info from this JID.
node -- The particular node to query.
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.
ifrom -- Specifiy the sender's JID.
"""
data = {'category': category,
'itype': itype,
'lang': lang,
'local': local,
'cached': cached}
return self._run_node_handler('has_identity', jid, node, ifrom, data)
def get_info(self, jid=None, node=None, local=False,
cached=None, **kwargs):

87
sleekxmpp/plugins/xep_0030/static.py
View file

@ -51,6 +51,7 @@ class StaticDisco(object):
"""
self.nodes = {}
self.xmpp = xmpp
self.disco = xmpp['xep_0030']
self.lock = threading.RLock()
def add_node(self, jid=None, node=None, ifrom=None):
@ -119,6 +120,89 @@ class StaticDisco(object):
# 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)}
if node in (None, ''):
info = self.caps.get_caps(jid)
if info and identity in info['identities']:
return 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.
@ -348,6 +432,9 @@ class StaticDisco(object):
The data parameter is not used.
"""
with self.lock:
if isinstance(jid, JID):
jid = jid.full
if not self.node_exists(jid, node, ifrom):
return None
else: