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-rw-r--r--sleekxmpp/api.py191
-rw-r--r--sleekxmpp/basexmpp.py17
-rw-r--r--sleekxmpp/plugins/base.py1
-rw-r--r--sleekxmpp/plugins/xep_0030/disco.py125
-rw-r--r--sleekxmpp/plugins/xep_0115/caps.py14
-rw-r--r--sleekxmpp/plugins/xep_0128/extended_disco.py9
6 files changed, 260 insertions, 97 deletions
diff --git a/sleekxmpp/api.py b/sleekxmpp/api.py
new file mode 100644
index 00000000..9d8ec201
--- /dev/null
+++ b/sleekxmpp/api.py
@@ -0,0 +1,191 @@
+from sleekxmpp.xmlstream import JID
+
+
+class APIWrapper(object):
+
+ def __init__(self, api, name):
+ self.api = api
+ self.name = name
+
+ def __getattr__(self, attr):
+ """Curry API management commands with the API name."""
+ if attr == 'name':
+ return self.name
+ elif attr == 'settings':
+ return self.api.settings[self.name]
+ elif attr == 'register':
+ def curried_handler(handler, op, jid=None, node=None):
+ register = getattr(self.api, attr)
+ return register(handler, self.name, op, jid, node)
+ return curried_handler
+ elif attr == 'register_default':
+ def curried_handler(handler, op, jid=None, node=None):
+ return getattr(self.api, attr)(handler, self.name, op)
+ return curried_handler
+ elif attr in ('run', 'restore_default', 'unregister'):
+ def curried_handler(*args, **kwargs):
+ return getattr(self.api, attr)(self.name, *args, **kwargs)
+ return curried_handler
+ return None
+
+ def __getitem__(self, attr):
+ def curried_handler(jid=None, node=None, ifrom=None, args=None):
+ return self.api.run(self.name, attr, jid, node, ifrom, args)
+ return curried_handler
+
+
+class APIRegistry(object):
+
+ def __init__(self, xmpp):
+ self._handlers = {}
+ self._handler_defaults = {}
+ self.xmpp = xmpp
+ self.settings = {}
+
+ def _setup(self, ctype, op):
+ """Initialize the API callback dictionaries.
+
+ :param string ctype: The name of the API to initialize.
+ :param string op: The API operation to initialize.
+ """
+ if ctype not in self.settings:
+ self.settings[ctype] = {}
+ if ctype not in self._handler_defaults:
+ self._handler_defaults[ctype] = {}
+ if ctype not in self._handlers:
+ self._handlers[ctype] = {}
+ if op not in self._handlers[ctype]:
+ self._handlers[ctype][op] = {'global': None,
+ 'jid': {},
+ 'node': {}}
+
+ def wrap(self, ctype):
+ """Return a wrapper object that targets a specific API."""
+ return APIWrapper(self, ctype)
+
+ def purge(self, ctype):
+ """Remove all information for a given API."""
+ del self.settings[ctype]
+ del self._handler_defaults[ctype]
+ del self._handlers[ctype]
+
+ def run(self, ctype, op, jid=None, node=None, ifrom=None, args=None):
+ """Execute an API callback, based on specificity.
+
+ The API callback that is executed is chosen based on the combination
+ of the provided JID and node:
+
+ JID | node | Handler
+ ==============================
+ Given | Given | Node handler
+ Given | None | JID handler
+ None | None | Global handler
+
+ A node handler is responsible for servicing a single node at a single
+ JID, while a JID handler may respond for any node at a given JID, and
+ the global handler will answer to any JID+node combination.
+
+ Handlers should check that the JID ``ifrom`` is authorized to perform
+ the desired action.
+
+ :param string ctype: The name of the API to use.
+ :param string op: The API operation to perform.
+ :param JID jid: Optionally provide specific JID.
+ :param string node: Optionally provide specific node.
+ :param JID ifrom: Optionally provide the requesting JID.
+ :param tuple args: Optional positional arguments to the handler.
+ """
+ self._setup(ctype, op)
+
+ if jid in (None, ''):
+ jid = self.xmpp.boundjid
+ if jid and not isinstance(jid, JID):
+ jid = JID(jid)
+
+ if node is None:
+ node = ''
+
+ if self.xmpp.is_component:
+ if self.settings[ctype].get('component_bare', False):
+ jid = jid.bare
+ else:
+ jid = jid.full
+ else:
+ if self.settings[ctype].get('client_bare', True):
+ jid = jid.bare
+ else:
+ jid = jid.full
+
+ handler = self._handlers[ctype][op]['node'].get((jid, node), None)
+ if handler is None:
+ handler = self._handlers[ctype][op]['jid'].get(jid, None)
+ if handler is None:
+ handler = self._handlers[ctype][op].get('global', None)
+
+ if handler:
+ try:
+ return handler(jid, node, ifrom, args)
+ except TypeError:
+ # To preserve backward compatibility, drop the ifrom
+ # parameter for existing handlers that don't understand it.
+ return handler(jid, node, args)
+
+ def register(self, handler, ctype, op, jid=None, node=None, default=False):
+ """Register an API callback, with JID+node specificity.
+
+ The API callback can later be executed based on the
+ specificity of the provided JID+node combination.
+
+ See :meth:`~ApiRegistry.run` for more details.
+
+ :param string ctype: The name of the API to use.
+ :param string op: The API operation to perform.
+ :param JID jid: Optionally provide specific JID.
+ :param string node: Optionally provide specific node.
+ """
+ self._setup(ctype, op)
+ if jid is None and node is None:
+ if handler is None:
+ handler = self._handler_defaults[op]
+ self._handlers[ctype][op]['global'] = handler
+ elif jid is not None and node is None:
+ self._handlers[ctype][op]['jid'][jid] = handler
+ else:
+ self._handlers[ctype][op]['node'][(jid, node)] = handler
+
+ def register_default(self, handler, ctype, op):
+ """Register a default, global handler for an operation.
+
+ :param func handler: The default, global handler for the operation.
+ :param string ctype: The name of the API to modify.
+ :param string op: The API operation to use.
+ """
+ self._setup(ctype, op)
+ self._handler_defaults[ctype][op] = handler
+
+ def unregister(self, ctype, op, jid=None, node=None):
+ """Remove an API callback.
+
+ The API callback chosen for removal is based on the
+ specificity of the provided JID+node combination.
+
+ See :meth:`~ApiRegistry.run` for more details.
+
+ :param string ctype: The name of the API to use.
+ :param string op: The API operation to perform.
+ :param JID jid: Optionally provide specific JID.
+ :param string node: Optionally provide specific node.
+ """
+ self._setup(ctype, op)
+ self.register(None, ctype, op, jid, node)
+
+ def restore_default(self, ctype, op, jid=None, node=None):
+ """Reset an API callback to use a default handler.
+
+ :param string ctype: The name of the API to use.
+ :param string op: The API operation to perform.
+ :param JID jid: Optionally provide specific JID.
+ :param string node: Optionally provide specific node.
+ """
+ self.unregister(ctype, op, jid, node)
+ self.register(self._handler_defaults[ctype][op], ctype, op, jid, node)
diff --git a/sleekxmpp/basexmpp.py b/sleekxmpp/basexmpp.py
index dc1f6b94..5fcfbf6d 100644
--- a/sleekxmpp/basexmpp.py
+++ b/sleekxmpp/basexmpp.py
@@ -19,6 +19,7 @@ import logging
import sleekxmpp
from sleekxmpp import plugins, features, roster
+from sleekxmpp.api import APIRegistry
from sleekxmpp.exceptions import IqError, IqTimeout
from sleekxmpp.stanza import Message, Presence, Iq, StreamError
@@ -97,6 +98,22 @@ class BaseXMPP(XMLStream):
#: ``'to'`` and ``'from'`` JIDs of stanzas.
self.is_component = False
+ #: The API registry is a way to process callbacks based on
+ #: JID+node combinations. Each callback in the registry is
+ #: marked with:
+ #:
+ #: - An API name, e.g. xep_0030
+ #: - The name of an action, e.g. get_info
+ #: - The JID that will be affected
+ #: - The node that will be affected
+ #:
+ #: API handlers with no JID or node will act as global handlers,
+ #: while those with a JID and no node will service all nodes
+ #: for a JID, and handlers with both a JID and node will be
+ #: used only for that specific combination. The handler that
+ #: provides the most specificity will be used.
+ self.api = APIRegistry(self)
+
#: Flag indicating that the initial presence broadcast has
#: been sent. Until this happens, some servers may not
#: behave as expected when sending stanzas.
diff --git a/sleekxmpp/plugins/base.py b/sleekxmpp/plugins/base.py
index f08023ba..ccea5ce4 100644
--- a/sleekxmpp/plugins/base.py
+++ b/sleekxmpp/plugins/base.py
@@ -269,6 +269,7 @@ class BasePlugin(object):
def __init__(self, xmpp, config=None):
self.xmpp = xmpp
+ self.api = self.xmpp.api.wrap(self.name)
#: A plugin's behaviour may be configurable, in which case those
#: configuration settings will be provided as a dictionary.
diff --git a/sleekxmpp/plugins/xep_0030/disco.py b/sleekxmpp/plugins/xep_0030/disco.py
index a5e8fd1c..76824e1c 100644
--- a/sleekxmpp/plugins/xep_0030/disco.py
+++ b/sleekxmpp/plugins/xep_0030/disco.py
@@ -118,16 +118,13 @@ class XEP_0030(BasePlugin):
'del_item', 'del_identities', 'del_features', 'cache_info',
'get_cached_info', 'supports', 'has_identity']
- self.default_handlers = {}
- self._handlers = {}
for op in self._disco_ops:
- self._add_disco_op(op, getattr(self.static, op))
+ self.api.register(getattr(self.static, op), op)
+ self.api.register_default(getattr(self.static, op), op)
def _add_disco_op(self, op, default_handler):
- self.default_handlers[op] = default_handler
- self._handlers[op] = {'global': default_handler,
- 'jid': {},
- 'node': {}}
+ self.api.register(default_handler, op)
+ self.api.register_default(default_handler, op)
def set_node_handler(self, htype, jid=None, node=None, handler=None):
"""
@@ -173,20 +170,7 @@ class XEP_0030(BasePlugin):
assumed.
handler -- The handler function to use.
"""
- if htype not in self._disco_ops:
- return
- if jid is None and node is None:
- self._handlers[htype]['global'] = handler
- elif node is None:
- self._handlers[htype]['jid'][jid] = handler
- elif jid is None:
- if self.xmpp.is_component:
- jid = self.xmpp.boundjid.full
- else:
- jid = self.xmpp.boundjid.bare
- self._handlers[htype]['node'][(jid, node)] = handler
- else:
- self._handlers[htype]['node'][(jid, node)] = handler
+ self.api.register(handler, htype, jid, node)
def del_node_handler(self, htype, jid, node):
"""
@@ -209,7 +193,7 @@ class XEP_0030(BasePlugin):
jid -- The JID from which to remove the handler.
node -- The node from which to remove the handler.
"""
- self.set_node_handler(htype, jid, node, None)
+ self.api.unregister(htype, jid, node)
def restore_defaults(self, jid=None, node=None, handlers=None):
"""
@@ -232,8 +216,7 @@ class XEP_0030(BasePlugin):
if handlers is None:
handlers = self._disco_ops
for op in handlers:
- self.del_node_handler(op, jid, node)
- self.set_node_handler(op, jid, node, self.default_handlers[op])
+ self.api.restore_default(op, jid, node)
def supports(self, jid=None, node=None, feature=None, local=False,
cached=True, ifrom=None):
@@ -266,7 +249,7 @@ class XEP_0030(BasePlugin):
data = {'feature': feature,
'local': local,
'cached': cached}
- return self._run_node_handler('supports', jid, node, ifrom, data)
+ return self.api['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):
@@ -303,7 +286,7 @@ class XEP_0030(BasePlugin):
'lang': lang,
'local': local,
'cached': cached}
- return self._run_node_handler('has_identity', jid, node, ifrom, data)
+ return self.api['has_identity'](jid, node, ifrom, data)
def get_info(self, jid=None, node=None, local=False,
cached=None, **kwargs):
@@ -355,16 +338,18 @@ class XEP_0030(BasePlugin):
if local or jid in (None, ''):
log.debug("Looking up local disco#info data " + \
"for %s, node %s.", jid, node)
- info = self._run_node_handler('get_info',
- jid, node, kwargs.get('ifrom', None), kwargs)
+ info = self.api['get_info'](jid, node,
+ kwargs.get('ifrom', None),
+ kwargs)
info = self._fix_default_info(info)
return self._wrap(kwargs.get('ifrom', None), jid, info)
if cached:
log.debug("Looking up cached disco#info data " + \
"for %s, node %s.", jid, node)
- info = self._run_node_handler('get_cached_info',
- jid, node, kwargs.get('ifrom', None), kwargs)
+ info = self.api['get_cached_info'](jid, node,
+ kwargs.get('ifrom', None),
+ kwargs)
if info is not None:
return self._wrap(kwargs.get('ifrom', None), jid, info)
@@ -385,7 +370,7 @@ class XEP_0030(BasePlugin):
"""
if isinstance(info, Iq):
info = info['disco_info']
- self._run_node_handler('set_info', jid, node, None, info)
+ self.api['set_info'](jid, node, None, info)
def get_items(self, jid=None, node=None, local=False, **kwargs):
"""
@@ -419,8 +404,9 @@ class XEP_0030(BasePlugin):
Otherwise the parameter is ignored.
"""
if local or jid is None:
- items = self._run_node_handler('get_items',
- jid, node, kwargs.get('ifrom', None), kwargs)
+ items = self.api['get_items'](jid, node,
+ kwargs.get('ifrom', None),
+ kwargs)
return self._wrap(kwargs.get('ifrom', None), jid, items)
iq = self.xmpp.Iq()
@@ -448,7 +434,7 @@ class XEP_0030(BasePlugin):
node -- Optional node to modify.
items -- A series of items in tuple format.
"""
- self._run_node_handler('set_items', jid, node, None, kwargs)
+ self.api['set_items'](jid, node, None, kwargs)
def del_items(self, jid=None, node=None, **kwargs):
"""
@@ -458,7 +444,7 @@ class XEP_0030(BasePlugin):
jid -- The JID to modify.
node -- Optional node to modify.
"""
- self._run_node_handler('del_items', jid, node, None, kwargs)
+ self.api['del_items'](jid, node, None, kwargs)
def add_item(self, jid='', name='', node=None, subnode='', ijid=None):
"""
@@ -479,7 +465,7 @@ class XEP_0030(BasePlugin):
kwargs = {'ijid': jid,
'name': name,
'inode': subnode}
- self._run_node_handler('add_item', ijid, node, None, kwargs)
+ self.api['add_item'](ijid, node, None, kwargs)
def del_item(self, jid=None, node=None, **kwargs):
"""
@@ -491,7 +477,7 @@ class XEP_0030(BasePlugin):
ijid -- The item's JID.
inode -- The item's node.
"""
- self._run_node_handler('del_item', jid, node, None, kwargs)
+ self.api['del_item'](jid, node, None, kwargs)
def add_identity(self, category='', itype='', name='',
node=None, jid=None, lang=None):
@@ -518,7 +504,7 @@ class XEP_0030(BasePlugin):
'itype': itype,
'name': name,
'lang': lang}
- self._run_node_handler('add_identity', jid, node, None, kwargs)
+ self.api['add_identity'](jid, node, None, kwargs)
def add_feature(self, feature, node=None, jid=None):
"""
@@ -530,7 +516,7 @@ class XEP_0030(BasePlugin):
jid -- The JID to modify.
"""
kwargs = {'feature': feature}
- self._run_node_handler('add_feature', jid, node, None, kwargs)
+ self.api['add_feature'](jid, node, None, kwargs)
def del_identity(self, jid=None, node=None, **kwargs):
"""
@@ -544,7 +530,7 @@ class XEP_0030(BasePlugin):
name -- Optional, human readable name for the identity.
lang -- Optional, the identity's xml:lang value.
"""
- self._run_node_handler('del_identity', jid, node, None, kwargs)
+ self.api['del_identity'](jid, node, None, kwargs)
def del_feature(self, jid=None, node=None, **kwargs):
"""
@@ -555,7 +541,7 @@ class XEP_0030(BasePlugin):
node -- The node to modify.
feature -- The feature's namespace.
"""
- self._run_node_handler('del_feature', jid, node, None, kwargs)
+ self.api['del_feature'](jid, node, None, kwargs)
def set_identities(self, jid=None, node=None, **kwargs):
"""
@@ -570,7 +556,7 @@ class XEP_0030(BasePlugin):
identities -- A set of identities in tuple form.
lang -- Optional, xml:lang value.
"""
- self._run_node_handler('set_identities', jid, node, None, kwargs)
+ self.api['set_identities'](jid, node, None, kwargs)
def del_identities(self, jid=None, node=None, **kwargs):
"""
@@ -585,7 +571,7 @@ class XEP_0030(BasePlugin):
lang -- Optional. If given, only remove identities
using this xml:lang value.
"""
- self._run_node_handler('del_identities', jid, node, None, kwargs)
+ self.api['del_identities'](jid, node, None, kwargs)
def set_features(self, jid=None, node=None, **kwargs):
"""
@@ -597,7 +583,7 @@ class XEP_0030(BasePlugin):
node -- The node to modify.
features -- The new set of supported features.
"""
- self._run_node_handler('set_features', jid, node, None, kwargs)
+ self.api['set_features'](jid, node, None, kwargs)
def del_features(self, jid=None, node=None, **kwargs):
"""
@@ -607,7 +593,7 @@ class XEP_0030(BasePlugin):
jid -- The JID to modify.
node -- The node to modify.
"""
- self._run_node_handler('del_features', jid, node, None, kwargs)
+ self.api['del_features'](jid, node, None, kwargs)
def _run_node_handler(self, htype, jid, node=None, ifrom=None, data={}):
"""
@@ -620,39 +606,7 @@ class XEP_0030(BasePlugin):
node -- The node requested.
data -- Optional, custom data to pass to the handler.
"""
- if isinstance(jid, JID):
- jid = jid.full
-
- if jid in (None, ''):
- if self.xmpp.is_component:
- jid = self.xmpp.boundjid.full
- else:
- jid = self.xmpp.boundjid.bare
- if node is None:
- node = ''
-
- try:
- args = (jid, node, ifrom, data)
- if self._handlers[htype]['node'].get((jid, node), False):
- return self._handlers[htype]['node'][(jid, node)](*args)
- elif self._handlers[htype]['jid'].get(jid, False):
- return self._handlers[htype]['jid'][jid](*args)
- elif self._handlers[htype]['global']:
- return self._handlers[htype]['global'](*args)
- else:
- return None
- except TypeError:
- # To preserve backward compatibility, drop the ifrom parameter
- # for existing handlers that don't understand it.
- args = (jid, node, data)
- if self._handlers[htype]['node'].get((jid, node), False):
- return self._handlers[htype]['node'][(jid, node)](*args)
- elif self._handlers[htype]['jid'].get(jid, False):
- return self._handlers[htype]['jid'][jid](*args)
- elif self._handlers[htype]['global']:
- return self._handlers[htype]['global'](*args)
- else:
- return None
+ return self.api[htype](jid, node, ifrom, data)
def _handle_disco_info(self, iq):
"""
@@ -671,11 +625,10 @@ class XEP_0030(BasePlugin):
jid = iq['to'].full
else:
jid = iq['to'].bare
- info = self._run_node_handler('get_info',
- jid,
- iq['disco_info']['node'],
- iq['from'],
- iq)
+ info = self.api['get_info'](jid,
+ iq['disco_info']['node'],
+ iq['from'],
+ iq)
if isinstance(info, Iq):
info.send()
else:
@@ -694,8 +647,7 @@ class XEP_0030(BasePlugin):
ito = iq['to'].full
else:
ito = None
- self._run_node_handler('cache_info',
- iq['from'].full,
+ self.api['cache_info'](iq['from'].full,
iq['disco_info']['node'],
ito,
iq)
@@ -717,8 +669,7 @@ class XEP_0030(BasePlugin):
jid = iq['to'].full
else:
jid = iq['to'].bare
- items = self._run_node_handler('get_items',
- jid,
+ items = self.api['get_items'](jid,
iq['disco_items']['node'],
iq['from'].full,
iq)
diff --git a/sleekxmpp/plugins/xep_0115/caps.py b/sleekxmpp/plugins/xep_0115/caps.py
index 3aa0f70f..fee86f5b 100644
--- a/sleekxmpp/plugins/xep_0115/caps.py
+++ b/sleekxmpp/plugins/xep_0115/caps.py
@@ -78,7 +78,9 @@ class XEP_0115(BasePlugin):
self.static = StaticCaps(self.xmpp, disco.static)
for op in self._disco_ops:
- disco._add_disco_op(op, getattr(self.static, op))
+ self.api.register(getattr(self.static, op), 'xep_0115', op)
+ self.api.register_default(getattr(self.static, op),
+ 'xep_0115', op)
self._run_node_handler = disco._run_node_handler
@@ -279,19 +281,19 @@ class XEP_0115(BasePlugin):
jid = self.xmpp.boundjid.full
if isinstance(jid, JID):
jid = jid.full
- return self._run_node_handler('get_verstring', jid)
+ return self.api['get_verstring'](jid)
def assign_verstring(self, jid=None, verstring=None):
if jid in (None, ''):
jid = self.xmpp.boundjid.full
if isinstance(jid, JID):
jid = jid.full
- return self._run_node_handler('assign_verstring', jid,
- data={'verstring': verstring})
+ return self.api['assign_verstring'](jid, args={
+ 'verstring': verstring})
def cache_caps(self, verstring=None, info=None):
data = {'verstring': verstring, 'info': info}
- return self._run_node_handler('cache_caps', None, None, data=data)
+ return self.api['cache_caps'](args=data)
def get_caps(self, jid=None, verstring=None):
if verstring is None:
@@ -302,4 +304,4 @@ class XEP_0115(BasePlugin):
if isinstance(jid, JID):
jid = jid.full
data = {'verstring': verstring}
- return self._run_node_handler('get_caps', jid, None, None, data)
+ return self.api['get_caps'](jid, args=data)
diff --git a/sleekxmpp/plugins/xep_0128/extended_disco.py b/sleekxmpp/plugins/xep_0128/extended_disco.py
index d49741de..93f8e8f0 100644
--- a/sleekxmpp/plugins/xep_0128/extended_disco.py
+++ b/sleekxmpp/plugins/xep_0128/extended_disco.py
@@ -61,7 +61,8 @@ class XEP_0128(BasePlugin):
self.disco.del_extended_info = self.del_extended_info
for op in self._disco_ops:
- self.disco._add_disco_op(op, getattr(self.static, op))
+ self.api.register(getattr(self.static, op), op)
+ self.api.register_default(getattr(self.static, op), op)
def set_extended_info(self, jid=None, node=None, **kwargs):
"""
@@ -76,7 +77,7 @@ class XEP_0128(BasePlugin):
as extended information, replacing any
existing extensions.
"""
- self.disco._run_node_handler('set_extended_info', jid, node, None, kwargs)
+ self.api['set_extended_info'](jid, node, None, kwargs)
def add_extended_info(self, jid=None, node=None, **kwargs):
"""
@@ -88,7 +89,7 @@ class XEP_0128(BasePlugin):
data -- Either a form, or a list of forms to add
as extended information.
"""
- self.disco._run_node_handler('add_extended_info', jid, node, None, kwargs)
+ self.api['add_extended_info'](jid, node, None, kwargs)
def del_extended_info(self, jid=None, node=None, **kwargs):
"""
@@ -98,4 +99,4 @@ class XEP_0128(BasePlugin):
jid -- The JID to modify.
node -- The node to modify.
"""
- self.disco._run_node_handler('del_extended_info', jid, node, None, kwargs)
+ self.api['del_extended_info'](jid, node, None, kwargs)