slixmpp/sleekxmpp/xmlstream/jid.py
2010-11-18 00:03:39 -05:00

126 lines
3.9 KiB
Python

"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2010 Nathanael C. Fritz
This file is part of SleekXMPP.
See the file LICENSE for copying permission.
"""
class JID(object):
"""
A representation of a Jabber ID, or JID.
Each JID may have three components: a user, a domain, and an optional
resource. For example: user@domain/resource
When a resource is not used, the JID is called a bare JID.
The JID is a full JID otherwise.
Attributes:
jid -- Alias for 'full'.
full -- The value of the full JID.
bare -- The value of the bare JID.
user -- The username portion of the JID.
domain -- The domain name portion of the JID.
server -- Alias for 'domain'.
resource -- The resource portion of the JID.
Methods:
reset -- Use a new JID value.
regenerate -- Recreate the JID from its components.
"""
def __init__(self, jid):
"""Initialize a new JID"""
self.reset(jid)
def reset(self, jid):
"""
Start fresh from a new JID string.
Arguments:
jid - The new JID value.
"""
self._full = self._jid = str(jid)
self._domain = None
self._resource = None
self._user = None
self._bare = None
def __getattr__(self, name):
"""
Handle getting the JID values, using cache if available.
Arguments:
name -- One of: user, server, domain, resource,
full, or bare.
"""
if name == 'resource':
if self._resource is None and '/' in self._jid:
self._resource = self._jid.split('/', 1)[-1]
return self._resource or ""
elif name == 'user':
if self._user is None:
if '@' in self._jid:
self._user = self._jid.split('@', 1)[0]
else:
self._user = self._user
return self._user or ""
elif name in ('server', 'domain', 'host'):
if self._domain is None:
self._domain = self._jid.split('@', 1)[-1].split('/', 1)[0]
return self._domain or ""
elif name == 'full':
return self._jid or ""
elif name == 'bare':
if self._bare is None:
self._bare = self._jid.split('/', 1)[0]
return self._bare or ""
def __setattr__(self, name, value):
"""
Edit a JID by updating it's individual values, resetting the
generated JID in the end.
Arguments:
name -- The name of the JID part. One of: user, domain,
server, resource, full, jid, or bare.
value -- The new value for the JID part.
"""
if name in ('resource', 'user', 'domain'):
object.__setattr__(self, "_%s" % name, value)
self.regenerate()
elif name in ('server', 'domain', 'host'):
self.domain = value
elif name in ('full', 'jid'):
self.reset(value)
self.regenerate()
elif name == 'bare':
if '@' in value:
u, d = value.split('@', 1)
object.__setattr__(self, "_user", u)
object.__setattr__(self, "_domain", d)
else:
object.__setattr__(self, "_user", '')
object.__setattr__(self, "_domain", value)
self.regenerate()
else:
object.__setattr__(self, name, value)
def regenerate(self):
"""Generate a new JID based on current values, useful after editing."""
jid = ""
if self.user:
jid = "%s@" % self.user
jid += self.domain
if self.resource:
jid += "/%s" % self.resource
self.reset(jid)
def __str__(self):
"""Use the full JID as the string value."""
return self.full
def __repr__(self):
return str(self)