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+"""
+ 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:
+ self._resource = self._jid.split('/', 1)[-1]
+ return self._resource
+ 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
+ elif name in ('server', 'domain'):
+ if self._domain is None:
+ self._domain = self._jid.split('@', 1)[-1].split('/', 1)[0]
+ return self._domain
+ elif name == 'full':
+ return self._jid
+ elif name == 'bare':
+ if self._bare is None:
+ self._bare = self._jid.split('/', 1)[0]
+ return self._bare
+
+ 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 == 'server':
+ self.domain = value
+ elif name in ('full', 'jid'):
+ self.reset(value)
+ 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, "_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