9962f1a664
Stanzas may now be copied using copy.copy(), which will be useful to prevent stanza objects from being shared between event handlers.
395 lines
10 KiB
Python
395 lines
10 KiB
Python
"""
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SleekXMPP: The Sleek XMPP Library
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Copyright (C) 2010 Nathanael C. Fritz
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This file is part of SleekXMPP.
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See the file license.txt for copying permission.
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"""
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from xml.etree import cElementTree as ET
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import logging
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import traceback
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import sys
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import weakref
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import copy
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if sys.version_info < (3,0):
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from . import tostring26 as tostring
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else:
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from . import tostring
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xmltester = type(ET.Element('xml'))
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class JID(object):
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def __init__(self, jid):
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self.jid = jid
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def __getattr__(self, name):
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if name == 'resource':
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return self.jid.split('/', 1)[-1]
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elif name == 'user':
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if '@' in self.jid:
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return self.jid.split('@', 1)[0]
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else:
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return ''
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elif name == 'server':
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return self.jid.split('@', 1)[-1].split('/', 1)[0]
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elif name == 'full':
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return self.jid
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elif name == 'bare':
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return self.jid.split('/', 1)[0]
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def __str__(self):
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return self.jid
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class ElementBase(tostring.ToString):
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name = 'stanza'
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plugin_attrib = 'plugin'
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namespace = 'jabber:client'
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interfaces = set(('type', 'to', 'from', 'id', 'payload'))
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types = set(('get', 'set', 'error', None, 'unavailable', 'normal', 'chat'))
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sub_interfaces = tuple()
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plugin_attrib_map = {}
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plugin_tag_map = {}
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subitem = None
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def __init__(self, xml=None, parent=None):
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if parent is None:
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self.parent = None
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else:
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self.parent = weakref.ref(parent)
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self.xml = xml
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self.plugins = {}
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self.iterables = []
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self.idx = 0
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if not self.setup(xml):
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for child in self.xml.getchildren():
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if child.tag in self.plugin_tag_map:
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self.plugins[self.plugin_tag_map[child.tag].plugin_attrib] = self.plugin_tag_map[child.tag](xml=child, parent=self)
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if self.subitem is not None:
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for sub in self.subitem:
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if child.tag == "{%s}%s" % (sub.namespace, sub.name):
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self.iterables.append(sub(xml=child, parent=self))
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break
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@property
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def attrib(self): #backwards compatibility
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return self
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def __iter__(self):
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self.idx = 0
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return self
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def __bool__(self):
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return True
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def __next__(self):
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self.idx += 1
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if self.idx > len(self.iterables):
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self.idx = 0
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raise StopIteration
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return self.iterables[self.idx - 1]
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def next(self):
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return self.__next__()
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def __len__(self):
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return len(self.iterables)
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def append(self, item):
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if not isinstance(item, ElementBase):
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if type(item) == xmltester:
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return self.appendxml(item)
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else:
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raise TypeError
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self.xml.append(item.xml)
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self.iterables.append(item)
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return self
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def pop(self, idx=0):
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aff = self.iterables.pop(idx)
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self.xml.remove(aff.xml)
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return aff
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def get(self, key, defaultvalue=None):
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value = self[key]
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if value is None or value == '':
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return defaultvalue
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return value
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def keys(self):
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out = []
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out += [x for x in self.interfaces]
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out += [x for x in self.plugins]
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if self.iterables:
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out.append('substanzas')
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return tuple(out)
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def match(self, matchstring):
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if isinstance(matchstring, str):
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nodes = matchstring.split('/')
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else:
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nodes = matchstring
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tagargs = nodes[0].split('@')
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if tagargs[0] not in (self.plugins, self.plugin_attrib): return False
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founditerable = False
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for iterable in self.iterables:
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if nodes[1:] == []:
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break
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founditerable = iterable.match(nodes[1:])
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if founditerable: break;
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for evals in tagargs[1:]:
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x,y = evals.split('=')
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if self[x] != y: return False
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if not founditerable and len(nodes) > 1:
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next = nodes[1].split('@')[0]
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if next in self.plugins:
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return self.plugins[next].match(nodes[1:])
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else:
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return False
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return True
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def find(self, xpath): # for backwards compatiblity, expose elementtree interface
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return self.xml.find(xpath)
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def findall(self, xpath):
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return self.xml.findall(xpath)
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def setup(self, xml=None):
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if self.xml is None:
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self.xml = xml
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if self.xml is None:
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for ename in self.name.split('/'):
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new = ET.Element("{%(namespace)s}%(name)s" % {'name': self.name, 'namespace': self.namespace})
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if self.xml is None:
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self.xml = new
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else:
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self.xml.append(new)
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if self.parent is not None:
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self.parent().xml.append(self.xml)
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return True #had to generate XML
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else:
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return False
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def enable(self, attrib):
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self.initPlugin(attrib)
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return self
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def initPlugin(self, attrib):
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if attrib not in self.plugins:
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self.plugins[attrib] = self.plugin_attrib_map[attrib](parent=self)
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def __getitem__(self, attrib):
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if attrib == 'substanzas':
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return self.iterables
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elif attrib in self.interfaces:
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if hasattr(self, "get%s" % attrib.title()):
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return getattr(self, "get%s" % attrib.title())()
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else:
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if attrib in self.sub_interfaces:
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return self._getSubText(attrib)
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else:
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return self._getAttr(attrib)
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elif attrib in self.plugin_attrib_map:
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if attrib not in self.plugins: self.initPlugin(attrib)
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return self.plugins[attrib]
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else:
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return ''
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def __setitem__(self, attrib, value):
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if attrib in self.interfaces:
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if value is not None:
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if hasattr(self, "set%s" % attrib.title()):
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getattr(self, "set%s" % attrib.title())(value,)
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else:
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if attrib in self.sub_interfaces:
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return self._setSubText(attrib, text=value)
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else:
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self._setAttr(attrib, value)
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else:
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self.__delitem__(attrib)
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elif attrib in self.plugin_attrib_map:
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if attrib not in self.plugins: self.initPlugin(attrib)
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self.initPlugin(attrib)
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self.plugins[attrib][attrib] = value
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return self
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def __delitem__(self, attrib):
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if attrib.lower() in self.interfaces:
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if hasattr(self, "del%s" % attrib.title()):
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getattr(self, "del%s" % attrib.title())()
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else:
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if attrib in self.sub_interfaces:
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return self._delSub(attrib)
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else:
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self._delAttr(attrib)
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elif attrib in self.plugin_attrib_map:
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if attrib in self.plugins:
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del self.plugins[attrib]
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return self
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def __eq__(self, other):
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if not isinstance(other, ElementBase):
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return False
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values = self.getValues()
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for key in other:
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if key not in values or values[key] != other[key]:
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return False
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return True
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def _setAttr(self, name, value):
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if value is None or value == '':
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self.__delitem__(name)
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else:
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self.xml.attrib[name] = value
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def _delAttr(self, name):
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if name in self.xml.attrib:
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del self.xml.attrib[name]
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def _getAttr(self, name):
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return self.xml.attrib.get(name, '')
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def _getSubText(self, name):
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stanza = self.xml.find("{%s}%s" % (self.namespace, name))
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if stanza is None or stanza.text is None:
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return ''
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else:
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return stanza.text
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def _setSubText(self, name, attrib={}, text=None):
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if text is None or text == '':
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return self.__delitem__(name)
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stanza = self.xml.find("{%s}%s" % (self.namespace, name))
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if stanza is None:
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#self.xml.append(ET.Element("{%s}%s" % (self.namespace, name), attrib))
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stanza = ET.Element("{%s}%s" % (self.namespace, name))
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self.xml.append(stanza)
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stanza.text = text
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return stanza
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def _delSub(self, name):
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for child in self.xml.getchildren():
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if child.tag == "{%s}%s" % (self.namespace, name):
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self.xml.remove(child)
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def getValues(self):
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out = {}
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for interface in self.interfaces:
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out[interface] = self[interface]
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for pluginkey in self.plugins:
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out[pluginkey] = self.plugins[pluginkey].getValues()
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if self.iterables:
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iterables = []
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for stanza in self.iterables:
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iterables.append(stanza.getValues())
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iterables[-1].update({'__childtag__': "{%s}%s" % (stanza.namespace, stanza.name)})
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out['substanzas'] = iterables
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return out
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def setValues(self, attrib):
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for interface in attrib:
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if interface == 'substanzas':
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for subdict in attrib['substanzas']:
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if '__childtag__' in subdict:
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for subclass in self.subitem:
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if subdict['__childtag__'] == "{%s}%s" % (subclass.namespace, subclass.name):
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sub = subclass(parent=self)
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sub.setValues(subdict)
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self.iterables.append(sub)
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break
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elif interface in self.interfaces:
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self[interface] = attrib[interface]
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elif interface in self.plugin_attrib_map and interface not in self.plugins:
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self.initPlugin(interface)
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if interface in self.plugins:
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self.plugins[interface].setValues(attrib[interface])
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return self
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def appendxml(self, xml):
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self.xml.append(xml)
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return self
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def __copy__(self):
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return self.__class__(xml=copy.copy(self.xml), parent=self.parent)
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#def __del__(self): #prevents garbage collection of reference cycle
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# if self.parent is not None:
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# self.parent.xml.remove(self.xml)
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class StanzaBase(ElementBase):
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name = 'stanza'
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namespace = 'jabber:client'
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interfaces = set(('type', 'to', 'from', 'id', 'payload'))
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types = set(('get', 'set', 'error', None, 'unavailable', 'normal', 'chat'))
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sub_interfaces = tuple()
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def __init__(self, stream=None, xml=None, stype=None, sto=None, sfrom=None, sid=None):
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self.stream = stream
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if stream is not None:
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self.namespace = stream.default_ns
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ElementBase.__init__(self, xml)
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if stype is not None:
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self['type'] = stype
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if sto is not None:
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self['to'] = sto
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if sfrom is not None:
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self['from'] = sfrom
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self.tag = "{%s}%s" % (self.namespace, self.name)
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def setType(self, value):
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if value in self.types:
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self.xml.attrib['type'] = value
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return self
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def getPayload(self):
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return self.xml.getchildren()
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def setPayload(self, value):
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self.xml.append(value)
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return self
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def delPayload(self):
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self.clear()
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return self
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def clear(self):
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for child in self.xml.getchildren():
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self.xml.remove(child)
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for plugin in list(self.plugins.keys()):
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del self.plugins[plugin]
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return self
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def reply(self):
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self['from'], self['to'] = self['to'], self['from']
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self.clear()
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return self
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def error(self):
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self['type'] = 'error'
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return self
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def getTo(self):
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return JID(self._getAttr('to'))
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def setTo(self, value):
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return self._setAttr('to', str(value))
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def getFrom(self):
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return JID(self._getAttr('from'))
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def setFrom(self, value):
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return self._setAttr('from', str(value))
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def unhandled(self):
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pass
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def exception(self, e):
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logging.error(traceback.format_tb(e))
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def send(self):
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self.stream.sendRaw(self.__str__())
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def __copy__(self):
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return self.__class__(xml=copy.copy(self.xml), stream=self.stream)
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