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gajim-plural/common/jabber.py

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## jabber.py
##
## Copyright (C) 2001 Matthew Allum
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published
## by the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
"""\
__intro__
jabber.py is a Python module for the jabber instant messaging protocol.
jabber.py deals with the xml parsing and socket code, leaving the programmer
to concentrate on developing quality jabber based applications with Python.
The eventual aim is to produce a fully featured easy to use library for
creating both jabber clients and servers.
jabber.py requires at least python 2.0 and the XML expat parser module
( included in the standard Python distrubution ).
It is developed on Linux but should run happily on over Unix's and win32.
__Usage__
jabber.py basically subclasses the xmlstream classs and provides the
processing of jabber protocol elements into object instances as well
'helper' functions for parts of the protocol such as authentication
and roster management.
An example of usage for a simple client would be ( only psuedo code !)
<> Read documentation on jabber.org for the jabber protocol.
<> Birth a jabber.Client object with your jabber servers host
<> Define callback functions for the protocol elements you want to use
and optionally a disconnection.
<> Authenticate with the server via auth method, or register via the
reg methods to get an account.
<> Call requestRoster() and sendPresence()
<> loop over process(). Send Iqs,messages and presences by birthing
them via there respective clients , manipulating them and using
the Client's send() method.
<> Respond to incoming elements passed to your callback functions.
<> Find bugs :)
"""
# $Id$
import xmlstream
import sha, time
debug=xmlstream.debug
VERSION = xmlstream.VERSION
False = 0;
True = 1;
timeout = 300
NAT_TIMEOUT = 60
DBG_INIT, DBG_ALWAYS = debug.DBG_INIT, debug.DBG_ALWAYS
DBG_DISPATCH = 'jb-dispatch' ; debug.debug_flags.append( DBG_DISPATCH )
DBG_NODE = 'jb-node' ; debug.debug_flags.append( DBG_NODE)
DBG_NODE_IQ = 'jb-node-iq' ; debug.debug_flags.append( DBG_NODE_IQ )
DBG_NODE_MESSAGE = 'jb-node-message' ; debug.debug_flags.append( DBG_NODE_MESSAGE )
DBG_NODE_PRESENCE = 'jb-node-pressence' ; debug.debug_flags.append( DBG_NODE_PRESENCE )
DBG_NODE_UNKNOWN = 'jb-node-unknown' ; debug.debug_flags.append( DBG_NODE_UNKNOWN )
#
# JANA core namespaces
# from http://www.jabber.org/jana/namespaces.php as of 2003-01-12
# "myname" means that namespace didnt have a name in the jabberd headers
#
NS_AGENT = "jabber:iq:agent"
NS_AGENTS = "jabber:iq:agents"
NS_AUTH = "jabber:iq:auth"
NS_CLIENT = "jabber:client"
NS_DELAY = "jabber:x:delay"
NS_OOB = "jabber:iq:oob"
NS_REGISTER = "jabber:iq:register"
NS_ROSTER = "jabber:iq:roster"
NS_XROSTER = "jabber:x:roster" # myname
NS_SERVER = "jabber:server"
NS_TIME = "jabber:iq:time"
NS_VERSION = "jabber:iq:version"
NS_COMP_ACCEPT = "jabber:component:accept" # myname
NS_COMP_CONNECT = "jabber:component:connect" # myname
#
# JANA JEP namespaces, ordered by JEP
# from http://www.jabber.org/jana/namespaces.php as of 2003-01-12
# all names by jaclu
#
_NS_PROTOCOL = "http://jabber.org/protocol" # base for other
NS_PASS = "jabber:iq:pass" # JEP-0003
NS_XDATA = "jabber:x:data" # JEP-0004
NS_RPC = "jabber:iq:rpc" # JEP-0009
NS_BROWSE = "jabber:iq:browse" # JEP-0011
NS_LAST = "jabber:iq:last" #JEP-0012
NS_PRIVACY = "jabber:iq:privacy" # JEP-0016
NS_XEVENT = "jabber:x:event" # JEP-0022
NS_XEXPIRE = "jabber:x:expire" # JEP-0023
NS_XENCRYPTED = "jabber:x:encrypted" # JEP-0027
NS_XSIGNED = "jabber:x:signed" # JEP-0027
NS_P_MUC = _NS_PROTOCOL + "/muc" # JEP-0045
NS_P_MUC_ADMIN = NS_P_MUC + "#admin" # JEP-0045
NS_P_MUC_OWNER = NS_P_MUC + "#owner" # JEP-0045
NS_P_MUC_USER = NS_P_MUC + "#user" # JEP-0045
NS_VCARD = "vcard-temp" # JEP-0054
#
# Non JANA aproved, ordered by JEP
# all names by jaclu
#
_NS_P_DISCO = _NS_PROTOCOL + "/disco" # base for other
NS_P_DISC_INFO = _NS_P_DISCO + "#info" # JEP-0030
NS_P_DISC_ITEMS = _NS_P_DISCO + "#items" # JEP-0030
NS_P_COMMANDS = _NS_PROTOCOL + "/commands" # JEP-0050
"""
2002-01-11 jaclu
Defined in jabberd/lib/lib.h, but not JANA aproved and not used in jabber.py
so commented out, should/could propably be removed...
NS_ADMIN = "jabber:iq:admin"
NS_AUTH_OK = "jabber:iq:auth:0k"
NS_CONFERENCE = "jabber:iq:conference"
NS_ENVELOPE = "jabber:x:envelope"
NS_FILTER = "jabber:iq:filter"
NS_GATEWAY = "jabber:iq:gateway"
NS_OFFLINE = "jabber:x:offline"
NS_PRIVATE = "jabber:iq:private"
NS_SEARCH = "jabber:iq:search"
NS_XDBGINSERT = "jabber:xdb:ginsert"
NS_XDBNSLIST = "jabber:xdb:nslist"
NS_XHTML = "http://www.w3.org/1999/xhtml"
NS_XOOB = "jabber:x:oob"
NS_COMP_EXECUTE = "jabber:component:execute" # myname
"""
## Possible constants for Roster class .... hmmm ##
RS_SUB_BOTH = 0
RS_SUB_FROM = 1
RS_SUB_TO = 2
RS_ASK_SUBSCRIBE = 1
RS_ASK_UNSUBSCRIBE = 0
RS_EXT_ONLINE = 2
RS_EXT_OFFLINE = 1
RS_EXT_PENDING = 0
#############################################################################
def ustr(what):
"""If sending object is already a unicode str, just
return it, otherwise convert it using xmlstream.ENCODING"""
if type(what) == type(u''):
r = what
else:
try: r = what.__str__()
except AttributeError: r = str(what)
# make sure __str__() didnt return a unicode
if type(r) <> type(u''):
r = unicode(r,xmlstream.ENCODING,'replace')
return r
xmlstream.ustr = ustr
class NodeProcessed(Exception): pass # currently only for Connection._expectedIqHandler
class Connection(xmlstream.Client):
"""Forms the base for both Client and Component Classes"""
def __init__(self, host, port, namespace,
debug=[], log=False, connection=xmlstream.TCP, hostIP=None, proxy=None):
xmlstream.Client.__init__(self, host, port, namespace,
debug=debug, log=log,
connection=connection,
hostIP=hostIP, proxy=proxy)
self.handlers={}
self.registerProtocol('unknown', Protocol)
self.registerProtocol('iq', Iq)
self.registerProtocol('message', Message)
self.registerProtocol('presence', Presence)
self.registerHandler('iq',self._expectedIqHandler,system=True)
self._expected = {}
self._id = 0;
self._lastIncome = time.time()
self.lastErr = ''
self.lastErrCode = 0
def setMessageHandler(self, func, type='', chainOutput=False):
"""Back compartibility method"""
print "WARNING! setMessageHandler(...) method is obsolette, use registerHandler('message',...) instead."
return self.registerHandler('message', func, type, chained=chainOutput)
def setPresenceHandler(self, func, type='', chainOutput=False):
"""Back compartibility method"""
print "WARNING! setPresenceHandler(...) method is obsolette, use registerHandler('presence',...) instead."
return self.registerHandler('presence', func, type, chained=chainOutput)
def setIqHandler(self, func, type='', ns=''):
"""Back compartibility method"""
print "WARNING! setIqHandler(...) method is obsolette, use registerHandler('iq',...) instead."
return self.registerHandler('iq', func, type, ns)
def header(self):
self.DEBUG("stream: sending initial header",DBG_INIT)
str = u"<?xml version='1.0' encoding='UTF-8' ?> \
<stream:stream to='%s' xmlns='%s'" % ( self._host,
self._namespace )
if self._outgoingID: str = str + " id='%s' " % self._outgoingID
str = str + " xmlns:stream='http://etherx.jabber.org/streams'>"
self.send(str)
self.process(timeout)
def send(self, what):
"""Sends a jabber protocol element (Node) to the server"""
xmlstream.Client.write(self,ustr(what))
def _expectedIqHandler(self, conn, iq_obj):
if iq_obj.getAttr('id') and \
self._expected.has_key(iq_obj.getAttr('id')):
self._expected[iq_obj.getAttr('id')] = iq_obj
raise NodeProcessed('No need for further Iq processing.')
def dispatch(self,stanza):
"""Called internally when a 'protocol element' is received.
Builds the relevant jabber.py object and dispatches it
to a relevant function or callback."""
self._lastIncome = time.time()
name=stanza.getName()
if not self.handlers.has_key(name):
self.DEBUG("whats a tag -> " + name,DBG_NODE_UNKNOWN)
name='unknown'
else:
self.DEBUG("Got %s stanza"%name, DBG_NODE)
stanza=self.handlers[name][type](node=stanza)
typ=stanza.getType()
if not typ: typ=''
try:
ns=stanza.getQuery()
if not ns: ns=''
except: ns=''
self.DEBUG("dispatch called for: name->%s ns->%s"%(name,ns),DBG_DISPATCH)
if typ and ns: typns=typ+ns
else: typns=''
if not self.handlers[name].has_key(ns): ns=''
if not self.handlers[name].has_key(typ): typ=''
if not self.handlers[name].has_key(typns): typns=''
chain=[]
for key in ['default',typ,ns,typns]: # we will use all handlers: from very common to very particular
if key: chain += self.handlers[name][key]
output=''
user=True
for handler in chain:
try:
if user or handler['system']:
if handler['chain']: output=handler['func'](self,stanza,output)
else: handler['func'](self,stanza)
except NodeProcessed: user=False
def registerProtocol(self,tag_name,Proto):
"""Registers a protocol in protocol processing chain. You MUST register
a protocol before you register any handler function for it.
First parameter, that passed to this function is the tag name that
belongs to all protocol elements. F.e.: message, presence, iq, xdb, ...
Second parameter is the [ancestor of] Protocol class, which instance will
built from the received node with call
if received_packet.getName()==tag_name:
stanza = Proto(node = received_packet)
"""
self.handlers[tag_name]={type:Proto, 'default':[]}
def registerHandler(self,name,handler,type='',ns='',chained=False, makefirst=False, system=False):
"""Sets the callback func for processing incoming stanzas.
Multiple callback functions can be set which are called in
succession. Callback can optionally raise an NodeProcessed error to
stop stanza from further processing. A type and namespace attributes can
also be optionally passed so the callback is only called when a stanza of
this type is received. Namespace attribute MUST be omitted if you
registering an Iq processing handler.
If 'chainOutput' is set to False (the default), the given function
should be defined as follows:
def myCallback(c, p)
Where the first parameter is the Client object, and the second
parameter is the [ancestor of] Protocol object representing the stanza
which was received.
If 'chainOutput' is set to True, the output from the various
handler functions will be chained together. In this case,
the given callback function should be defined like this:
def myCallback(c, p, output)
Where 'output' is the value returned by the previous
callback function. For the first callback routine, 'output' will be
set to an empty string.
'makefirst' argument gives you control over handler prioriy in its type
and namespace scope. Note that handlers for particular type or namespace always
have lower priority that common handlers.
"""
if not type and not ns: type='default'
if not self.handlers[name].has_key(type+ns): self.handlers[name][type+ns]=[]
if makefirst: self.handlers[name][type+ns].insert(0, {'chain':chained,'func':handler,'system':system})
else: self.handlers[name][type+ns].append({'chain':chained,'func':handler,'system':system})
def setDisconnectHandler(self, func):
"""Set the callback for a disconnect.
The given function will be called with a single parameter (the
connection object) when the connection is broken unexpectedly (eg,
in response to sending badly formed XML). self.lastErr and
self.lastErrCode will be set to the error which caused the
disconnection, if any.
"""
self.disconnectHandler = func
## functions for sending element with ID's ##
def waitForResponse(self, ID, timeout=timeout):
"""Blocks untils a protocol element with the given id is received.
If an error is received, waitForResponse returns None and
self.lastErr and self.lastErrCode is set to the received error. If
the operation times out (which only happens if a timeout value is
given), waitForResponse will return None and self.lastErr will be
set to "Timeout".
Changed default from timeout=0 to timeout=300 to avoid hangs in
scripts and such.
If you _really_ want no timeout, just set it to 0"""
ID = ustr(ID)
self._expected[ID] = None
has_timed_out = False
abort_time = time.time() + timeout
if timeout:
self.DEBUG("waiting with timeout:%s for %s" % (timeout,ustr(ID)),DBG_NODE_IQ)
else:
self.DEBUG("waiting for %s" % ustr(ID),DBG_NODE_IQ)
while (not self._expected[ID]) and not has_timed_out:
if not self.process(0.2): return None
if timeout and (time.time() > abort_time):
has_timed_out = True
if has_timed_out:
self.lastErr = "Timeout"
return None
response = self._expected[ID]
del self._expected[ID]
if response.getErrorCode():
self.lastErr = response.getError()
self.lastErrCode = response.getErrorCode()
return None
return response
def SendAndWaitForResponse(self, obj, ID=None, timeout=timeout):
"""Sends a protocol element object and blocks until a response with
the same ID is received. The received protocol object is returned
as the function result. """
if ID is None :
ID = obj.getID()
if ID is None:
ID = self.getAnID()
obj.setID(ID)
ID = ustr(ID)
self.send(obj)
return self.waitForResponse(ID,timeout)
def getAnID(self):
"""Returns a unique ID"""
self._id = self._id + 1
return ustr(self._id)
def process(self, timeout=0):
if time.time() > self._lastIncome + NAT_TIMEOUT:
self._lastIncome = time.time()
iq = Iq(type="get", to=self._host, query=NS_LAST)
if not self.SendAndWaitForResponse(iq, timeout=30):
self.disconnectHandler(self)
return xmlstream.Client.process(self, timeout)
#############################################################################
class Client(Connection):
"""Class for managing a client connection to a jabber server."""
def __init__(self, host, port=5222, debug=[], log=False,
connection=xmlstream.TCP, hostIP=None, proxy=None):
Connection.__init__(self, host, port, NS_CLIENT, debug, log,
connection=connection, hostIP=hostIP, proxy=proxy)
self.registerHandler('iq',self._IqRosterManage,'result',NS_ROSTER,system=True)
self.registerHandler('iq',self._IqRosterManage,'set',NS_ROSTER,system=True)
self.registerHandler('iq',self._IqRegisterResult,'result',NS_REGISTER,system=True)
self.registerHandler('iq',self._IqAgentsResult,'result',NS_AGENTS,system=True)
self.registerHandler('presence',self._presenceHandler,system=True)
self._roster = Roster()
self._agents = {}
self._reg_info = {}
self._reg_agent = ''
def disconnect(self,status=None):
"""Safely disconnects from the connected server"""
self.send(Presence(type='unavailable',status=status))
xmlstream.Client.disconnect(self)
def sendPresence(self,type=None,priority=None,show=None,status=None,signedStatus=None):
"""Sends a presence protocol element to the server.
Used to inform the server that you are online"""
if type == 'available' and show == 'online':
type = None
show = None
presence = Presence(type=type,priority=priority,show=show,status=status)
if signedStatus:
presence.setX(NS_XSIGNED).insertData(signedStatus)
self.send(presence)
sendInitPresence=sendPresence
def _presenceHandler(self, conn, pres_obj):
who = ustr(pres_obj.getFrom())
type = pres_obj.getType()
self.DEBUG("presence type is %s" % type,DBG_NODE_PRESENCE)
if type == 'available' or not type:
self.DEBUG("roster setting %s to online" % who,DBG_NODE_PRESENCE)
self._roster._setOnline(who,'online')
elif type == 'unavailable':
self.DEBUG("roster setting %s to offline" % who,DBG_NODE_PRESENCE)
self._roster._setOnline(who,'offline')
self._roster._setShow(who,pres_obj.getShow())
self._roster._setStatus(who,pres_obj.getStatus())
def _IqRosterManage(self, conn, iq_obj):
"NS_ROSTER and type in [result,set]"
for item in iq_obj.getQueryNode().getChildren():
jid = item.getAttr('jid')
name = item.getAttr('name')
sub = item.getAttr('subscription')
ask = item.getAttr('ask')
groups = []
for group in item.getTags("group"):
groups.append(group.getData())
if jid:
if sub == 'remove' or (sub == 'none' and not ask):
self._roster._remove(jid)
else:
self._roster._set(jid=jid, name=name,
groups=groups, sub=sub,
ask=ask)
else:
self.DEBUG("roster - jid not defined ?",DBG_NODE_IQ)
def _IqRegisterResult(self, conn, iq_obj):
"NS_REGISTER and type==result"
self._reg_info = {}
for item in iq_obj.getQueryNode().getChildren():
self._reg_info[item.getName()] = item.getData()
def _IqAgentsResult(self, conn, iq_obj):
"NS_AGENTS and type==result"
self.DEBUG("got agents result",DBG_NODE_IQ)
self._agents = {}
for agent in iq_obj.getQueryNode().getChildren():
if agent.getName() == 'agent': ## hmmm
self._agents[agent.getAttr('jid')] = {}
for info in agent.getChildren():
self._agents[agent.getAttr('jid')][info.getName()] = info.getData()
def auth(self,username,passwd,resource):
"""Authenticates and logs in to the specified jabber server
Automatically selects the 'best' authentication method
provided by the server.
Supports plain text, digest and zero-k authentication.
Returns True if the login was successful, False otherwise.
"""
auth_get_iq = Iq(type='get')
auth_get_iq.setID('auth-get')
q = auth_get_iq.setQuery(NS_AUTH)
q.insertTag('username').insertData(username)
self.send(auth_get_iq)
auth_response = self.waitForResponse("auth-get")
if auth_response == None:
return False # Error
else:
auth_ret_node = auth_response
auth_ret_query = auth_ret_node.getTag('query')
self.DEBUG("auth-get node arrived!",(DBG_INIT,DBG_NODE_IQ))
auth_set_iq = Iq(type='set')
auth_set_iq.setID('auth-set')
q = auth_set_iq.setQuery(NS_AUTH)
q.insertTag('username').insertData(username)
q.insertTag('resource').insertData(resource)
if auth_ret_query.getTag('token'):
token = auth_ret_query.getTag('token').getData()
seq = auth_ret_query.getTag('sequence').getData()
self.DEBUG("zero-k authentication supported",(DBG_INIT,DBG_NODE_IQ))
hash = sha.new(sha.new(passwd).hexdigest()+token).hexdigest()
for foo in xrange(int(seq)): hash = sha.new(hash).hexdigest()
q.insertTag('hash').insertData(hash)
elif auth_ret_query.getTag('digest'):
self.DEBUG("digest authentication supported",(DBG_INIT,DBG_NODE_IQ))
digest = q.insertTag('digest')
digest.insertData(sha.new(
self.getIncomingID() + passwd).hexdigest() )
else:
self.DEBUG("plain text authentication supported",(DBG_INIT,DBG_NODE_IQ))
q.insertTag('password').insertData(passwd)
iq_result = self.SendAndWaitForResponse(auth_set_iq)
if iq_result==None:
return False
if iq_result.getError() is None:
return True
else:
self.lastErr = iq_result.getError()
self.lastErrCode = iq_result.getErrorCode()
# raise error(iq_result.getError()) ?
return False
return True
## Roster 'helper' func's - also see the Roster class ##
def requestRoster(self):
"""Requests the roster from the server and returns a
Roster() class instance."""
rost_iq = Iq(type='get')
rost_iq.setQuery(NS_ROSTER)
self.SendAndWaitForResponse(rost_iq)
self.DEBUG("got roster response",DBG_NODE_IQ)
self.DEBUG("roster -> %s" % ustr(self._roster),DBG_NODE_IQ)
return self._roster
def getRoster(self):
"""Returns the current Roster() class instance. Does
not contact the server."""
return self._roster
def addRosterItem(self, jid):
""" Send off a request to subscribe to the given jid.
"""
self.send(Presence(to=jid, type="subscribe"))
def updateRosterItem(self, jid, name=None, groups=None):
""" Update the information stored in the roster about a roster item.
'jid' is the Jabber ID of the roster entry; 'name' is the value to
set the entry's name to, and 'groups' is a list of groups to which
this roster entry can belong. If either 'name' or 'groups' is not
specified, that value is not updated in the roster.
"""
iq = Iq(type='set')
item = iq.setQuery(NS_ROSTER).insertTag('item')
item.putAttr('jid', ustr(jid))
if name != None: item.putAttr('name', name)
if groups != None:
for group in groups:
item.insertTag('group').insertData(group)
dummy = self.SendAndWaitForResponse(iq) # Do we need to wait??
def removeRosterItem(self,jid):
"""Removes an item with Jabber ID jid from both the
server's roster and the local internal Roster()
instance"""
rost_iq = Iq(type='set')
q = rost_iq.setQuery(NS_ROSTER).insertTag('item')
q.putAttr('jid', ustr(jid))
q.putAttr('subscription', 'remove')
self.SendAndWaitForResponse(rost_iq)
return self._roster
## Registration 'helper' funcs ##
def requestRegInfo(self,agent=''):
"""Requests registration info from the server.
Returns the Iq object received from the server."""
if agent.find('.') == -1:
if agent: agent += '.'
agent += self._host
self._reg_info = {}
reg_iq = Iq(type='get', to = agent)
reg_iq.setQuery(NS_REGISTER)
self.DEBUG("Requesting reg info from %s:" % agent, DBG_NODE_IQ)
self.DEBUG(ustr(reg_iq),DBG_NODE_IQ)
return self.SendAndWaitForResponse(reg_iq)
def getRegInfo(self):
"""Returns a dictionary of fields requested by the server for a
registration attempt. Each dictionary entry maps from the name of
the field to the field's current value (either as returned by the
server or set programmatically by calling self.setRegInfo(). """
return self._reg_info
def setRegInfo(self,key,val):
"""Sets a name/value attribute. Note: requestRegInfo must be
called before setting."""
self._reg_info[key] = val
def sendRegInfo(self, agent=''):
"""Sends the populated registration dictionary back to the server"""
if agent.find('.') == -1:
if agent: agent += '.'
agent += self._host
reg_iq = Iq(to = agent, type='set')
q = reg_iq.setQuery(NS_REGISTER)
for info in self._reg_info.keys():
q.insertTag(info).putData(self._reg_info[info])
return self.SendAndWaitForResponse(reg_iq)
def deregister(self, agent=''):
""" Send off a request to deregister with the server or with the given
agent. Returns True if successful, else False.
Note that you must be authorised before attempting to deregister.
"""
if agent:
if agent.find('.') == -1:
agent += '.' + self._host
self.send(Presence(to=agent,type='unsubscribed')) # This is enough f.e. for icqv7t or jit
else: agent = self._host
q = self.requestRegInfo()
kids = q.getQueryPayload()
keyTag = kids.getTag("key")
iq = Iq(to=agent, type="set")
iq.setQuery(NS_REGISTER)
iq.setQueryNode("")
q = iq.getQueryNode()
if keyTag != None:
q.insertXML("<key>" + keyTag.getData() + "</key>")
q.insertXML("<remove/>")
result = self.SendAndWaitForResponse(iq)
if result == None:
return False
elif result.getType() == "result":
return True
else:
return False
## Agent helper funcs ##
def requestAgents(self):
"""Requests a list of available agents. Returns a dictionary
containing information about each agent; each entry in the
dictionary maps the agent's JID to a dictionary of attributes
describing what that agent can do (as returned by the
NS_AGENTS query)."""
self._agents = {}
agents_iq = Iq(type='get')
agents_iq.setQuery(NS_AGENTS)
self.SendAndWaitForResponse(agents_iq)
self.DEBUG("agents -> %s" % ustr(self._agents),DBG_NODE_IQ)
return self._agents
def _discover(self,ns,jid,node=None):
iq=Iq(to=jid,type='get',query=ns)
if node: iq.putAttr('node',node)
self.send(iq)
def discoverItems(self,jid,node=None):
""" According to JEP-0030: jid is mandatory, name, node, action is optional. """
self._discover(NS_P_DISC_ITEMS,jid,node)
def discoverInfo(self,jid,node=None):
""" According to JEP-0030:
For identity: category, name is mandatory, type is optional.
For feature: var is mandatory"""
self._discover(NS_P_DISC_INFO,jid,node)
def browseAgents(self,jid,node=None):
iq=Iq(to=jid,type='get',query=NS_BROWSE)
self.send(iq)
#############################################################################
class Protocol(xmlstream.Node):
"""Base class for jabber 'protocol elements' - messages, presences and iqs.
Implements methods that are common to all these"""
def __init__(self, name=None, to=None, type=None, attrs=None, frm=None, payload=[], node=None):
if not attrs: attrs={}
if to: attrs['to']=to
if frm: attrs['from']=frm
if type: attrs['type']=type
self._node=self
xmlstream.Node.__init__(self, tag=name, attrs=attrs, payload=payload, node=node)
def asNode(self):
"""Back compartibility method"""
print 'WARNING! "asNode()" method is obsolette, use Protocol object as Node object instead.'
return self
def getError(self):
"""Returns the error string, if any"""
try: return self.getTag('error').getData()
except: return None
def getErrorCode(self):
"""Returns the error code, if any"""
try: return self.getTag('error').getAttr('code')
except: return None
def setError(self,val,code):
"""Sets an error string and code"""
err = self.getTag('error')
if not err:
err = self.insertTag('error')
err.putData(val)
err.putAttr('code',str(code))
def __repr__(self):
return self.__str__()
def getTo(self):
"""Returns the 'to' attribute as a JID object."""
try: return JID(self.getAttr('to'))
except: return None
def getFrom(self):
"""Returns the 'from' attribute as a JID object."""
try: return JID(self.getAttr('from'))
except: return None
def getType(self):
"""Returns the 'type' attribute of the protocol element."""
try: return self.getAttr('type')
except: return None
def getID(self):
"""Returns the 'id' attribute of the protocol element."""
try: return self.getAttr('id')
except: return None
def setTo(self,val):
"""Sets the 'to' element to the given JID."""
self.putAttr('to', ustr(val))
def setFrom(self,val):
"""Sets the 'from' element to the given JID."""
self.putAttr('from', ustr(val))
def setType(self,val):
"""Sets the 'type' attribute of the protocol element"""
self.putAttr('type', val)
def setID(self,val):
"""Sets the ID of the protocol element"""
self.putAttr('id', val)
def getX(self,index=0):
"""Returns the x namespace, optionally passed an index if there are
multiple tags."""
try: return self.getXNodes()[index].namespace
except: return None
def setX(self,namespace,index=0):
"""Sets the name space of the x tag. It also creates the node
if it doesn't already exist."""
x = self.getTag('x',index)
if not x: x = self.insertTag('x')
x.setNamespace(namespace)
return x
def setXPayload(self, payload, namespace=''):
"""Sets the Child of an 'x' tag. Can be a Node instance or an
XML document"""
x = self.setX(namespace)
if type(payload) == type('') or type(payload) == type(u''):
payload = xmlstream.NodeBuilder(payload).getDom()
x.kids = [] # should be a method for this realy
x.insertNode(payload)
def getXPayload(self, val=None):
"""Returns the x tags' payload as a list of Node instances."""
nodes = []
if val is not None:
if type(val) == type(""):
for xnode in self.getTags('x'):
if xnode.getNamespace() == val: nodes.append(xnode.kids[0])
return nodes
else:
try: return self.getTags('x')[val].kids[0]
except: return None
for xnode in self.getTags('x'):
nodes.append(xnode.kids[0])
return nodes
def getXNode(self, val=None):
"""Returns the x Node instance. If there are multiple tags
the first Node is returned. For multiple X nodes use getXNodes
or pass an index integer value or namespace string to getXNode
and if a match is found it will be returned."""
if val is not None:
nodes = []
if type(val) == type(""):
for xnode in self.getTags('x'):
if xnode.getNamespace() == val: nodes.append(xnode)
return nodes
else:
try: return self.getTags('x')[val]
except: return None
else:
try: return self.getTag('x')
except: return None
def getXNodes(self):
"""Returns a list of X nodes."""
return self.getTags('x')
def setXNode(self, val=''):
"""Sets the x tag's data to the given textual value."""
self.insertTag('x').putData(val)
def fromTo(self):
"""Swaps the element's from and to attributes.
Note that this is only useful for writing components; if you are
writing a Jabber client you shouldn't use this, because the Jabber
server will set the 'from' field automatically."""
tmp = self.getTo()
self.setTo(self.getFrom())
self.setFrom(tmp)
#############################################################################
class Message(Protocol):
"""Builds on the Protocol class to provide an interface for sending
message protocol elements"""
def __init__(self, to=None, body=None, type=None, subject=None, attrs=None, frm=None, payload=[], node=None):
Protocol.__init__(self, 'message', to=to, type=type, attrs=attrs, frm=frm, payload=payload, node=node)
if body: self.setBody(body)
if subject: self.setSubject(subject)
# examine x tag and set timestamp if pressent
try: self.setTimestamp( self.getTag('x').getAttr('stamp') )
except: self.setTimestamp()
def getBody(self):
"""Returns the message body."""
try: return self.getTag('body').getData()
except: return None
def getSubject(self):
"""Returns the message's subject."""
try: return self.getTag('subject').getData()
except: return None
def getThread(self):
"""Returns the message's thread ID."""
try: return self.getTag('thread').getData()
except: return None
def getTimestamp(self):
return self.time_stamp
def setBody(self,val):
"""Sets the message body text."""
body = self.getTag('body')
if body:
body.putData(val)
else:
body = self.insertTag('body').putData(val)
def setSubject(self,val):
"""Sets the message subject text."""
subj = self.getTag('subject')
if subj:
subj.putData(val)
else:
self.insertTag('subject').putData(val)
def setThread(self,val):
"""Sets the message thread ID."""
thread = self.getTag('thread')
if thread:
thread.putData(val)
else:
self.insertTag('thread').putData(val)
def setTimestamp(self,val=None):
if not val:
val = time.strftime( '%Y%m%dT%H:%M:%S', time.localtime(time.time()))
self.time_stamp = val
def buildReply(self, reply_txt=''):
"""Returns a new Message object as a reply to itself.
The reply message has the 'to', 'type' and 'thread' attributes
automatically set."""
m = Message(to=self.getFrom(), body=reply_txt)
if not self.getType() == None:
m.setType(self.getType())
t = self.getThread()
if t: m.setThread(t)
return m
def build_reply(self, reply_txt=''):
print "WARNING: build_reply method is obsolette. Use buildReply instead."
return self.buildReply(reply_txt)
#############################################################################
class Presence(Protocol):
"""Class for creating and managing jabber <presence> protocol
elements"""
def __init__(self, to=None, type=None, priority=None, show=None, status=None, attrs=None, frm=None, payload=[], node=None):
Protocol.__init__(self, 'presence', to=to, type=type, attrs=attrs, frm=frm, payload=payload, node=node)
if priority: self.setPriority(priority)
if show: self.setShow(show)
if status: self.setStatus(status)
def getStatus(self):
"""Returns the presence status"""
try: return self.getTag('status').getData()
except: return None
def getShow(self):
"""Returns the presence show"""
try: return self.getTag('show').getData()
except: return None
def getPriority(self):
"""Returns the presence priority"""
try: return self.getTag('priority').getData()
except: return None
def _muc_getItemAttr(self,tag,attr):
for xtag in self.getTags('x'):
for child in xtag.getTags(tag):
return child.getAttr(attr)
def _muc_getSubTagDataAttr(self,tag,attr):
for xtag in self.getTags('x'):
for child in xtag.getTags('item'):
for cchild in child.getTags(tag):
return cchild.getData(),cchild.getAttr(attr)
return None,None
def getRole(self):
"""Returns the presence role (for groupchat)"""
return self._muc_getItemAttr('item','role')
def getAffiliation(self):
"""Returns the presence affiliation (for groupchat)"""
return self._muc_getItemAttr('item','affiliation')
def getJid(self):
"""Returns the presence jid (for groupchat)"""
return self._muc_getItemAttr('item','jid')
def getReason(self):
"""Returns the reason of the presence (for groupchat)"""
return self._muc_getSubTagDataAttr('reason','')[0]
def getActor(self):
"""Returns the reason of the presence (for groupchat)"""
return self._muc_getSubTagDataAttr('actor','jid')[1]
def getStatusCode(self):
"""Returns the status code of the presence (for groupchat)"""
return self._muc_getItemAttr('status','code')
def setShow(self,val):
"""Sets the presence show"""
show = self.getTag('show')
if show: show.putData(val)
else: self.insertTag('show').putData(val)
def setStatus(self,val):
"""Sets the presence status"""
status = self.getTag('status')
if status: status.putData(val)
else: self.insertTag('status').putData(val)
def setPriority(self,val):
"""Sets the presence priority"""
pri = self.getTag('priority')
if pri: pri.putData(val)
else: self.insertTag('priority').putData(val)
#############################################################################
class Iq(Protocol):
"""Class for creating and managing jabber <iq> protocol
elements"""
def __init__(self, to=None, type=None, query=None, attrs=None, frm=None, payload=[], node=None):
Protocol.__init__(self, 'iq', to=to, type=type, attrs=attrs, frm=frm, payload=payload, node=node)
if query: self.setQuery(query)
def _getTag(self,tag):
try: return self.getTag(tag).namespace
except: return None
def _setTag(self,tag,namespace):
q = self.getTag(tag)
if q:
q.namespace = namespace
else:
q = self.insertTag(tag)
q.setNamespace(namespace)
return q
def getList(self):
"returns the list namespace"
return self._getTag('list')
def setList(self,namespace):
return self._setTag('list',namespace)
def getQuery(self):
"returns the query namespace"
return self._getTag('query')
def setQuery(self,namespace):
"""Sets a query's namespace, and inserts a query tag if
one doesn't already exist. The resulting query tag
is returned as the function result."""
return self._setTag('query',namespace)
def setQueryPayload(self, payload, add=False):
"""Sets a Iq's query payload. 'payload' can be either a Node
structure or a valid xml document. The query tag is automatically
inserted if it doesn't already exist."""
q = self.getQueryNode()
if q is None:
q = self.insertTag('query')
if type(payload) == type('') or type(payload) == type(u''):
payload = xmlstream.NodeBuilder(payload).getDom()
if not add: q.kids = []
q.insertNode(payload)
def getQueryPayload(self):
"""Returns the query's payload as a Node list"""
q = self.getQueryNode()
if q: return q.kids
def getQueryNode(self):
"""Returns any textual data contained by the query tag"""
try: return self.getTag('query')
except: return None
def setQueryNode(self, val):
"""Sets textual data contained by the query tag"""
q = self.getTag('query')
if q:
q.putData(val)
else:
self.insertTag('query').putData(val)
#############################################################################
class Roster:
"""A Class for simplifying roster management. Also tracks roster
item availability."""
def __init__(self):
self._data = {}
self._listener = None
## unused for now ... ##
self._lut = { 'both':RS_SUB_BOTH,
'from':RS_SUB_FROM,
'to':RS_SUB_TO }
def setListener(self, listener):
""" Set a listener function to be called whenever the roster changes.
The given function will be called whenever the contents of the
roster changes in response to a received <presence> or <iq> packet.
The listener function should be defined as follows:
def listener(action, jid, info)
'action' is a string indicating what type of change has occurred:
"add" A new item has been added to the roster.
"update" An existing roster item has been updated.
"remove" A roster entry has been removed.
'jid' is the Jabber ID (as a string) of the affected roster entry.
'info' is a dictionary containing the information that has been
added or updated for this roster entry. This dictionary may
contain any combination of the following:
"name" The associated name of this roster entry.
"groups" A list of groups associated with this roster entry.
"online" The roster entry's "online" value ("online",
"offline" or "pending").
"sub" The roster entry's subscription value ("none",
"from", "to" or "both").
"ask" The roster entry's ask value, if any (None,
"subscribe", "unsubscribe").
"show" The roster entry's show value, if any (None, "away",
"chat", "dnd", "normal", "xa").
"status" The roster entry's current 'status' value, if
specified.
"""
self._listener = listener
def getStatus(self, jid): ## extended
"""Returns the 'status' value for a Roster item with the given jid."""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['status']
return None
def getShow(self, jid): ## extended
"""Returns the 'show' value for a Roster item with the given jid."""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['show']
return None
def getOnline(self,jid): ## extended
"""Returns the 'online' status for a Roster item with the given jid.
"""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['online']
return None
def getSub(self,jid):
"""Returns the 'subscription' status for a Roster item with the given
jid."""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['sub']
return None
def getName(self,jid):
"""Returns the 'name' for a Roster item with the given jid."""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['name']
return None
def getGroups(self,jid):
""" Returns the lsit of groups associated with the given roster item.
"""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['groups']
return None
def getAsk(self,jid):
"""Returns the 'ask' status for a Roster item with the given jid."""
jid = ustr(jid)
if self._data.has_key(jid):
return self._data[jid]['ask']
return None
def getSummary(self):
"""Returns a summary of the roster's contents. The returned value is a
dictionary mapping the basic (no resource) JIDs to their current
availability status (online, offline, pending). """
to_ret = {}
for jid in self._data.keys():
to_ret[jid] = self._data[jid]['online']
return to_ret
def getJIDs(self):
"""Returns a list of JIDs stored within the roster. Each entry in the
list is a JID object."""
to_ret = [];
for jid in self._data.keys():
to_ret.append(JID(jid))
return to_ret
def getRaw(self):
"""Returns the internal data representation of the roster."""
return self._data
def isOnline(self,jid):
"""Returns True if the given jid is online, False if not."""
jid = ustr(jid)
if self.getOnline(jid) != 'online':
return False
else:
return True
def _set(self,jid,name,groups,sub,ask):
# meant to be called by actual iq tag
"""Used internally - private"""
jid = ustr(jid) # just in case
online = 'offline'
if ask: online = 'pending'
if self._data.has_key(jid): # update it
self._data[jid]['name'] = name
self._data[jid]['groups'] = groups
self._data[jid]['ask'] = ask
self._data[jid]['sub'] = sub
if self._listener != None:
self._listener("update", jid, {'name' : name,
'groups' : groups,
'sub' : sub, 'ask' : ask})
else:
self._data[jid] = { 'name': name, 'groups' : groups, 'ask': ask,
'sub': sub, 'online': online, 'status': None,
'show': None}
if self._listener != None:
self._listener("add", jid, {'name' : name, 'groups' : groups,
'sub' : sub, 'ask' : ask,
'online' : online})
def _setOnline(self,jid,val):
"""Used internally - private"""
jid = ustr(jid)
if self._data.has_key(jid):
self._data[jid]['online'] = val
if self._listener != None:
self._listener("update", jid, {'online' : val})
else: ## fall back
jid_basic = JID(jid).getStripped()
if self._data.has_key(jid_basic):
self._data[jid_basic]['online'] = val
if self._listener != None:
self._listener("update", jid_basic, {'online' : val})
def _setShow(self,jid,val):
"""Used internally - private"""
jid = ustr(jid)
if self._data.has_key(jid):
self._data[jid]['show'] = val
if self._listener != None:
self._listener("update", jid, {'show' : val})
else: ## fall back
jid_basic = JID(jid).getStripped()
if self._data.has_key(jid_basic):
self._data[jid_basic]['show'] = val
if self._listener != None:
self._listener("update", jid_basic, {'show' : val})
def _setStatus(self,jid,val):
"""Used internally - private"""
jid = ustr(jid)
if self._data.has_key(jid):
self._data[jid]['status'] = val
if self._listener != None:
self._listener("update", jid, {'status' : val})
else: ## fall back
jid_basic = JID(jid).getStripped()
if self._data.has_key(jid_basic):
self._data[jid_basic]['status'] = val
if self._listener != None:
self._listener("update", jid_basic, {'status' : val})
def _remove(self,jid):
"""Used internally - private"""
if self._data.has_key(jid):
del self._data[jid]
if self._listener != None:
self._listener("remove", jid, {})
#############################################################################
class JID:
"""A Simple class for managing jabber users id's """
def __init__(self, jid='', node='', domain='', resource=''):
if type(jid)==type(self):
self.node = jid.node
self.domain = jid.domain
self.resource = jid.resource
elif jid:
if jid.find('@') == -1:
self.node = ''
else:
bits = jid.split('@', 1)
self.node = bits[0]
jid = bits[1]
if jid.find('/') == -1:
self.domain = jid
self.resource = ''
else:
self.domain, self.resource = jid.split('/', 1)
else:
self.node = node
self.domain = domain
self.resource = resource
def __str__(self):
jid_str = self.domain
if self.node: jid_str = self.node + '@' + jid_str
if self.resource: jid_str += '/' + self.resource
return jid_str
__repr__ = __str__
def getNode(self):
"""Returns JID Node as string"""
return self.node
def getDomain(self):
"""Returns JID domain as string or None if absent"""
return self.domain
def getResource(self):
"""Returns JID resource as string or None if absent"""
return self.resource
def setNode(self,val):
"""Sets JID Node from string"""
self.node = val
def setDomain(self,val):
"""Sets JID domain from string"""
self.domain = val
def setResource(self,val):
"""Sets JID resource from string"""
self.resource = val
def getStripped(self):
"""Returns a JID string with no resource"""
if self.node: return self.node + '@' + self.domain
else: return self.domain
def __eq__(self, other):
"""Returns whether this JID is identical to another one.
The "other" can be a JID object or a string."""
return str(self) == str(other)
#############################################################################
## component types
## Accept NS_COMP_ACCEPT
## Connect NS_COMP_CONNECT
## Execute NS_COMP_EXECUTE
class Component(Connection):
"""docs to come soon... """
def __init__(self, host, port, connection=xmlstream.TCP,
debug=[], log=False, ns=NS_COMP_ACCEPT, hostIP=None, proxy=None):
Connection.__init__(self, host, port, namespace=ns, debug=debug,
log=log, connection=connection, hostIP=hostIP, proxy=proxy)
self._auth_OK = False
self.registerProtocol('xdb', XDB)
def auth(self,secret):
"""will disconnect on failure"""
self.send( u"<handshake id='1'>%s</handshake>"
% sha.new( self.getIncomingID() + secret ).hexdigest()
)
while not self._auth_OK:
self.DEBUG("waiting on handshake")
self.process(1)
return True
def dispatch(self, root_node):
"""Catch the <handshake/> here"""
if root_node.name == 'handshake': # check id too ?
self._auth_OK = True
Connection.dispatch(self, root_node)
#############################################################################
## component protocol elements
class XDB(Protocol):
def __init__(self, attrs=None, type=None, frm=None, to=None, payload=[], node=None):
Protocol.__init__(self, 'xdb', attrs=attrs, type=type, frm=frm, to=to, payload=payload, node=node)
#############################################################################
class Log(Protocol):
## eg: <log type='warn' from='component'>Hello Log File</log>
def __init__(self, attrs=None, type=None, frm=None, to=None, payload=[], node=None):
Protocol.__init__(self, 'log', attrs=attrs, type=type, frm=frm, to=to, payload=payload, node=node)
def setBody(self,val):
"Sets the log message text."
self.getTag('log').putData(val)
def getBody(self):
"Returns the log message text."
return self.getTag('log').getData()
#############################################################################
class Server:
pass
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