134 lines
4.3 KiB
Python
134 lines
4.3 KiB
Python
#!/usr/bin/env python3
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# SAT: a jabber client
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# Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# hack to use this module with pyjamas
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try:
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str("") # XXX: unicode doesn't exist in pyjamas
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# normal version
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class BaseJID(str):
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def __new__(cls, jid_str):
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self = str.__new__(cls, cls._normalize(jid_str))
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return self
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def __init__(self, jid_str):
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pass
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def _parse(self):
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"""Find node domain and resource"""
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node_end = self.find("@")
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if node_end < 0:
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node_end = 0
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domain_end = self.find("/")
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if domain_end == 0:
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raise ValueError("a jid can't start with '/'")
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if domain_end == -1:
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domain_end = len(self)
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self.node = self[:node_end] or None
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self.domain = self[(node_end + 1) if node_end else 0 : domain_end]
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self.resource = self[domain_end + 1 :] or None
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except (
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TypeError,
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AttributeError,
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): # Error raised is not the same depending on pyjsbuild options
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# pyjamas version
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class BaseJID(object):
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def __init__(self, jid_str):
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self.__internal_str = JID._normalize(jid_str)
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def __str__(self):
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return self.__internal_str
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def __getattr__(self, name):
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return getattr(self.__internal_str, name)
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def __eq__(self, other):
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if not isinstance(other, JID):
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return False
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return (
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self.node == other.node
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and self.domain == other.domain
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and self.resource == other.resource
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)
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def __hash__(self):
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return hash("JID<{}>".format(self.__internal_str))
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def find(self, *args):
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return self.__internal_str.find(*args)
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def _parse(self):
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"""Find node domain and resource"""
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node_end = self.__internal_str.find("@")
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if node_end < 0:
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node_end = 0
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domain_end = self.__internal_str.find("/")
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if domain_end == 0:
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raise ValueError("a jid can't start with '/'")
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if domain_end == -1:
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domain_end = len(self.__internal_str)
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self.node = self.__internal_str[:node_end] or None
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self.domain = self.__internal_str[
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(node_end + 1) if node_end else 0 : domain_end
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]
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self.resource = self.__internal_str[domain_end + 1 :] or None
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class JID(BaseJID):
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"""This class help manage JID (Node@Domaine/Resource)"""
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def __init__(self, jid_str):
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super(JID, self).__init__(jid_str)
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self._parse()
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@staticmethod
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def _normalize(jid_str):
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"""Naive normalization before instantiating and parsing the JID"""
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if not jid_str:
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return jid_str
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tokens = jid_str.split("/")
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tokens[0] = tokens[0].lower() # force node and domain to lower-case
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return "/".join(tokens)
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@property
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def bare(self):
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if not self.node:
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return JID(self.domain)
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return JID("{}@{}".format(self.node, self.domain))
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def is_valid(self):
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"""
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@return: True if the JID is XMPP compliant
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"""
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# TODO: implement real check, according to the RFC http://tools.ietf.org/html/rfc6122
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return self.domain != ""
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def newResource(entity, resource):
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"""Build a new JID from the given entity and resource.
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@param entity (JID): original JID
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@param resource (unicode): new resource
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@return: a new JID instance
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"""
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return JID("%s/%s" % (entity.bare, resource))
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