diff options
Diffstat (limited to 'sleekxmpp/xmlstream/stanzabase.py')
| -rw-r--r-- | sleekxmpp/xmlstream/stanzabase.py | 260 |
1 files changed, 183 insertions, 77 deletions
diff --git a/sleekxmpp/xmlstream/stanzabase.py b/sleekxmpp/xmlstream/stanzabase.py index 5d572437..f06573bf 100644 --- a/sleekxmpp/xmlstream/stanzabase.py +++ b/sleekxmpp/xmlstream/stanzabase.py @@ -12,6 +12,8 @@ :license: MIT, see LICENSE for more details """ +from __future__ import with_statement, unicode_literals + import copy import logging import weakref @@ -29,6 +31,9 @@ log = logging.getLogger(__name__) XML_TYPE = type(ET.Element('xml')) +XML_NS = 'http://www.w3.org/XML/1998/namespace' + + def register_stanza_plugin(stanza, plugin, iterable=False, overrides=False): """ Associate a stanza object as a plugin for another stanza. @@ -101,20 +106,26 @@ def multifactory(stanza, plugin_attrib): def setup(self, xml=None): self.xml = ET.Element('') - def get_multi(self): + def get_multi(self, lang=None): parent = self.parent() - res = filter(lambda sub: isinstance(sub, self._multistanza), parent) + if lang is None: + res = filter(lambda sub: isinstance(sub, self._multistanza), parent) + else: + res = filter(lambda sub: isinstance(sub, self._multistanza) and sub['lang'] == lang, parent) return list(res) - def set_multi(self, val): + def set_multi(self, val, lang=None): parent = self.parent() del parent[self.plugin_attrib] for sub in val: parent.append(sub) - def del_multi(self): + def del_multi(self, lang=None): parent = self.parent() - res = filter(lambda sub: isinstance(sub, self._multistanza), parent) + if lang is None: + res = filter(lambda sub: isinstance(sub, self._multistanza), parent) + else: + res = filter(lambda sub: isinstance(sub, self._multistanza) and sub['lang'] == lang, parent) for stanza in list(res): parent.iterables.remove(stanza) parent.xml.remove(stanza.xml) @@ -122,7 +133,8 @@ def multifactory(stanza, plugin_attrib): Multi.is_extension = True Multi.plugin_attrib = plugin_attrib Multi._multistanza = stanza - Multi.interfaces = (plugin_attrib,) + Multi.interfaces = set([plugin_attrib]) + Multi.lang_interfaces = set([plugin_attrib]) setattr(Multi, "get_%s" % plugin_attrib, get_multi) setattr(Multi, "set_%s" % plugin_attrib, set_multi) setattr(Multi, "del_%s" % plugin_attrib, del_multi) @@ -289,14 +301,17 @@ class ElementBase(object): #: subelements of the underlying XML object. Using this set, the text #: of these subelements may be set, retrieved, or removed without #: needing to define custom methods. - sub_interfaces = tuple() + sub_interfaces = set() #: A subset of :attr:`interfaces` which maps the presence of #: subelements to boolean values. Using this set allows for quickly #: checking for the existence of empty subelements like ``<required />``. #: #: .. versionadded:: 1.1 - bool_interfaces = tuple() + bool_interfaces = set() + + #: .. versionadded:: 1.1.2 + lang_interfaces = set() #: In some cases you may wish to override the behaviour of one of the #: parent stanza's interfaces. The ``overrides`` list specifies the @@ -363,7 +378,7 @@ class ElementBase(object): subitem = set() #: The default XML namespace: ``http://www.w3.org/XML/1998/namespace``. - xml_ns = 'http://www.w3.org/XML/1998/namespace' + xml_ns = XML_NS def __init__(self, xml=None, parent=None): self._index = 0 @@ -375,6 +390,7 @@ class ElementBase(object): #: An ordered dictionary of plugin stanzas, mapped by their #: :attr:`plugin_attrib` value. self.plugins = OrderedDict() + self.loaded_plugins = set() #: A list of child stanzas whose class is included in #: :attr:`plugin_iterables`. @@ -385,6 +401,12 @@ class ElementBase(object): #: ``'{namespace}elementname'``. self.tag = self.tag_name() + if 'lang' not in self.interfaces: + if isinstance(self.interfaces, tuple): + self.interfaces += ('lang',) + else: + self.interfaces.add('lang') + #: A :class:`weakref.weakref` to the parent stanza, if there is one. #: If not, then :attr:`parent` is ``None``. self.parent = None @@ -406,10 +428,9 @@ class ElementBase(object): for child in self.xml.getchildren(): if child.tag in self.plugin_tag_map: plugin_class = self.plugin_tag_map[child.tag] - plugin = plugin_class(child, self) - self.plugins[plugin.plugin_attrib] = plugin - if plugin_class in self.plugin_iterables: - self.iterables.append(plugin) + self.init_plugin(plugin_class.plugin_attrib, + existing_xml=child, + reuse=False) def setup(self, xml=None): """Initialize the stanza's XML contents. @@ -443,7 +464,7 @@ class ElementBase(object): # We did not generate XML return False - def enable(self, attrib): + def enable(self, attrib, lang=None): """Enable and initialize a stanza plugin. Alias for :meth:`init_plugin`. @@ -451,24 +472,60 @@ class ElementBase(object): :param string attrib: The :attr:`plugin_attrib` value of the plugin to enable. """ - return self.init_plugin(attrib) + return self.init_plugin(attrib, lang) + + def _get_plugin(self, name, lang=None): + if lang is None: + lang = self.get_lang() + plugin_class = self.plugin_attrib_map[name] + if plugin_class.is_extension: + if (name, None) in self.plugins: + return self.plugins[(name, None)] + else: + return self.init_plugin(name, lang) + else: + if (name, lang) in self.plugins: + return self.plugins[(name, lang)] + else: + return self.init_plugin(name, lang) - def init_plugin(self, attrib): + def init_plugin(self, attrib, lang=None, existing_xml=None, reuse=True): """Enable and initialize a stanza plugin. :param string attrib: The :attr:`plugin_attrib` value of the plugin to enable. """ - if attrib not in self.plugins: - plugin_class = self.plugin_attrib_map[attrib] + if lang is None: + lang = self.get_lang() + + plugin_class = self.plugin_attrib_map[attrib] + + if plugin_class.is_extension and (attrib, None) in self.plugins: + return self.plugins[(attrib, None)] + if reuse and (attrib, lang) in self.plugins: + return self.plugins[(attrib, lang)] + + if existing_xml is None: existing_xml = self.xml.find(plugin_class.tag_name()) - plugin = plugin_class(parent=self, xml=existing_xml) - self.plugins[attrib] = plugin - if plugin_class in self.plugin_iterables: - self.iterables.append(plugin) - if plugin_class.plugin_multi_attrib: - self.init_plugin(plugin_class.plugin_multi_attrib) - return self + if existing_xml is not None and existing_xml.attrib.get('{%s}lang' % XML_NS, '') != lang: + existing_xml = None + + plugin = plugin_class(parent=self, xml=existing_xml) + + if plugin.is_extension: + self.plugins[(attrib, None)] = plugin + else: + plugin['lang'] = lang + self.plugins[(attrib, lang)] = plugin + + if plugin_class in self.plugin_iterables: + self.iterables.append(plugin) + if plugin_class.plugin_multi_attrib: + self.init_plugin(plugin_class.plugin_multi_attrib) + + self.loaded_plugins.add(attrib) + + return plugin def _get_stanza_values(self): """Return A JSON/dictionary version of the XML content @@ -493,7 +550,11 @@ class ElementBase(object): for interface in self.interfaces: values[interface] = self[interface] for plugin, stanza in self.plugins.items(): - values[plugin] = stanza.values + lang = stanza['lang'] + if lang: + values['%s|%s' % (plugin, lang)] = stanza.values + else: + values[plugin[0]] = stanza.values if self.iterables: iterables = [] for stanza in self.iterables: @@ -517,6 +578,11 @@ class ElementBase(object): p in self.plugin_iterables] for interface, value in values.items(): + full_interface = interface + interface_lang = ('%s|' % interface).split('|') + interface = interface_lang[0] + lang = interface_lang[1] or self.get_lang() + if interface == 'substanzas': # Remove existing substanzas for stanza in self.iterables: @@ -538,9 +604,8 @@ class ElementBase(object): self[interface] = value elif interface in self.plugin_attrib_map: if interface not in iterable_interfaces: - if interface not in self.plugins: - self.init_plugin(interface) - self.plugins[interface].values = value + plugin = self._get_plugin(interface, lang) + plugin.values = value return self def __getitem__(self, attrib): @@ -572,6 +637,15 @@ class ElementBase(object): :param string attrib: The name of the requested stanza interface. """ + full_attrib = attrib + attrib_lang = ('%s|' % attrib).split('|') + attrib = attrib_lang[0] + lang = attrib_lang[1] or '' + + kwargs = {} + if lang and attrib in self.lang_interfaces: + kwargs['lang'] = lang + if attrib == 'substanzas': return self.iterables elif attrib in self.interfaces: @@ -579,18 +653,17 @@ class ElementBase(object): get_method2 = "get%s" % attrib.title() if self.plugin_overrides: - plugin = self.plugin_overrides.get(get_method, None) - if plugin: - if plugin not in self.plugins: - self.init_plugin(plugin) - handler = getattr(self.plugins[plugin], get_method, None) + name = self.plugin_overrides.get(get_method, None) + if name: + plugin = self._get_plugin(name, lang) + handler = getattr(plugin, get_method, None) if handler: - return handler() + return handler(**kwargs) if hasattr(self, get_method): - return getattr(self, get_method)() + return getattr(self, get_method)(**kwargs) elif hasattr(self, get_method2): - return getattr(self, get_method2)() + return getattr(self, get_method2)(**kwargs) else: if attrib in self.sub_interfaces: return self._get_sub_text(attrib) @@ -600,11 +673,10 @@ class ElementBase(object): else: return self._get_attr(attrib) elif attrib in self.plugin_attrib_map: - if attrib not in self.plugins: - self.init_plugin(attrib) - if self.plugins[attrib].is_extension: - return self.plugins[attrib][attrib] - return self.plugins[attrib] + plugin = self._get_plugin(attrib, lang) + if plugin.is_extension: + return plugin[full_attrib] + return plugin else: return '' @@ -640,25 +712,32 @@ class ElementBase(object): :param string attrib: The name of the stanza interface to modify. :param value: The new value of the stanza interface. """ + full_attrib = attrib + attrib_lang = ('%s|' % attrib).split('|') + attrib = attrib_lang[0] + lang = attrib_lang[1] or '' + + kwargs = {} + if lang and attrib in self.lang_interfaces: + kwargs['lang'] = lang + if attrib in self.interfaces: if value is not None: set_method = "set_%s" % attrib.lower() set_method2 = "set%s" % attrib.title() if self.plugin_overrides: - plugin = self.plugin_overrides.get(set_method, None) - if plugin: - if plugin not in self.plugins: - self.init_plugin(plugin) - handler = getattr(self.plugins[plugin], - set_method, None) + name = self.plugin_overrides.get(set_method, None) + if name: + plugin = self._get_plugin(name, lang) + handler = getattr(plugin, set_method, None) if handler: - return handler(value) + return handler(value, **kwargs) if hasattr(self, set_method): - getattr(self, set_method)(value,) + getattr(self, set_method)(value, **kwargs) elif hasattr(self, set_method2): - getattr(self, set_method2)(value,) + getattr(self, set_method2)(value, **kwargs) else: if attrib in self.sub_interfaces: return self._set_sub_text(attrib, text=value) @@ -672,9 +751,8 @@ class ElementBase(object): else: self.__delitem__(attrib) elif attrib in self.plugin_attrib_map: - if attrib not in self.plugins: - self.init_plugin(attrib) - self.plugins[attrib][attrib] = value + plugin = self._get_plugin(attrib, lang) + plugin[full_attrib] = value return self def __delitem__(self, attrib): @@ -709,23 +787,31 @@ class ElementBase(object): :param attrib: The name of the affected stanza interface. """ + full_attrib = attrib + attrib_lang = ('%s|' % attrib).split('|') + attrib = attrib_lang[0] + lang = attrib_lang[1] or '' + + kwargs = {} + if lang and attrib in self.lang_interfaces: + kwargs['lang'] = lang + if attrib in self.interfaces: del_method = "del_%s" % attrib.lower() del_method2 = "del%s" % attrib.title() if self.plugin_overrides: - plugin = self.plugin_overrides.get(del_method, None) - if plugin: - if plugin not in self.plugins: - self.init_plugin(plugin) - handler = getattr(self.plugins[plugin], del_method, None) + name = self.plugin_overrides.get(del_method, None) + if name: + plugin = self._get_plugin(attrib, lang) + handler = getattr(plugin, del_method, None) if handler: - return handler() + return handler(**kwargs) if hasattr(self, del_method): - getattr(self, del_method)() + getattr(self, del_method)(**kwargs) elif hasattr(self, del_method2): - getattr(self, del_method2)() + getattr(self, del_method2)(**kwargs) else: if attrib in self.sub_interfaces: return self._del_sub(attrib) @@ -734,15 +820,17 @@ class ElementBase(object): else: self._del_attr(attrib) elif attrib in self.plugin_attrib_map: - if attrib in self.plugins: - xml = self.plugins[attrib].xml - if self.plugins[attrib].is_extension: - del self.plugins[attrib][attrib] - del self.plugins[attrib] - try: - self.xml.remove(xml) - except: - pass + plugin = self._get_plugin(attrib, lang) + if plugin.is_extension: + del plugin[full_attrib] + del self.plugins[(attrib, None)] + else: + del self.plugins[(attrib, lang)] + self.loaded_plugins.remove(attrib) + try: + self.xml.remove(plugin.xml) + except: + pass return self def _set_attr(self, name, value): @@ -903,7 +991,7 @@ class ElementBase(object): attributes = components[1:] if tag not in (self.name, "{%s}%s" % (self.namespace, self.name)) and \ - tag not in self.plugins and tag not in self.plugin_attrib: + tag not in self.loaded_plugins and tag not in self.plugin_attrib: # The requested tag is not in this stanza, so no match. return False @@ -932,10 +1020,11 @@ class ElementBase(object): if not matched_substanzas and len(xpath) > 1: # Convert {namespace}tag@attribs to just tag next_tag = xpath[1].split('@')[0].split('}')[-1] - if next_tag in self.plugins: - return self.plugins[next_tag].match(xpath[1:]) - else: - return False + langs = [name[1] for name in self.plugins if name[0] == next_tag] + for lang in langs: + if self._get_plugin(next_tag, lang).match(xpath[1:]): + return True + return False # Everything matched. return True @@ -995,7 +1084,7 @@ class ElementBase(object): """ out = [] out += [x for x in self.interfaces] - out += [x for x in self.plugins] + out += [x for x in self.loaded_plugins] if self.iterables: out.append('substanzas') return out @@ -1075,6 +1164,23 @@ class ElementBase(object): """ return "{%s}%s" % (cls.namespace, cls.name) + def get_lang(self): + result = self.xml.attrib.get('{%s}lang' % XML_NS, '') + if not result and self.parent and self.parent(): + return self.parent()['lang'] + return result + + def set_lang(self, lang): + self.del_lang() + attr = '{%s}lang' % XML_NS + if lang: + self.xml.attrib[attr] = lang + + def del_lang(self): + attr = '{%s}lang' % XML_NS + if attr in self.xml.attrib: + del self.xml.attrib[attr] + @property def attrib(self): """Return the stanza object itself. |