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-## client.py
-##
-## Copyright (C) 2003-2005 Alexey "Snake" Nezhdanov
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU 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 General Public License for more details.
-
-# $Id: client.py,v 1.61 2009/04/07 06:19:42 snakeru Exp $
-
-"""
-Provides PlugIn class functionality to develop extentions for xmpppy.
-Also provides Client and Component classes implementations as the
-examples of xmpppy structures usage.
-These classes can be used for simple applications "AS IS" though.
-"""
-
-import socket
-import debug
-Debug=debug
-Debug.DEBUGGING_IS_ON=1
-Debug.Debug.colors['socket']=debug.color_dark_gray
-Debug.Debug.colors['CONNECTproxy']=debug.color_dark_gray
-Debug.Debug.colors['nodebuilder']=debug.color_brown
-Debug.Debug.colors['client']=debug.color_cyan
-Debug.Debug.colors['component']=debug.color_cyan
-Debug.Debug.colors['dispatcher']=debug.color_green
-Debug.Debug.colors['browser']=debug.color_blue
-Debug.Debug.colors['auth']=debug.color_yellow
-Debug.Debug.colors['roster']=debug.color_magenta
-Debug.Debug.colors['ibb']=debug.color_yellow
-
-Debug.Debug.colors['down']=debug.color_brown
-Debug.Debug.colors['up']=debug.color_brown
-Debug.Debug.colors['data']=debug.color_brown
-Debug.Debug.colors['ok']=debug.color_green
-Debug.Debug.colors['warn']=debug.color_yellow
-Debug.Debug.colors['error']=debug.color_red
-Debug.Debug.colors['start']=debug.color_dark_gray
-Debug.Debug.colors['stop']=debug.color_dark_gray
-Debug.Debug.colors['sent']=debug.color_yellow
-Debug.Debug.colors['got']=debug.color_bright_cyan
-
-DBG_CLIENT='client'
-DBG_COMPONENT='component'
-
-class PlugIn:
- """ Common xmpppy plugins infrastructure: plugging in/out, debugging. """
- def __init__(self):
- self._exported_methods=[]
- self.DBG_LINE=self.__class__.__name__.lower()
-
- def PlugIn(self,owner):
- """ Attach to main instance and register ourself and all our staff in it. """
- self._owner=owner
- if self.DBG_LINE not in owner.debug_flags:
- owner.debug_flags.append(self.DBG_LINE)
- self.DEBUG('Plugging %s into %s'%(self,self._owner),'start')
- if owner.__dict__.has_key(self.__class__.__name__):
- return self.DEBUG('Plugging ignored: another instance already plugged.','error')
- self._old_owners_methods=[]
- for method in self._exported_methods:
- if owner.__dict__.has_key(method.__name__):
- self._old_owners_methods.append(owner.__dict__[method.__name__])
- owner.__dict__[method.__name__]=method
- owner.__dict__[self.__class__.__name__]=self
- if self.__class__.__dict__.has_key('plugin'): return self.plugin(owner)
-
- def PlugOut(self):
- """ Unregister all our staff from main instance and detach from it. """
- self.DEBUG('Plugging %s out of %s.'%(self,self._owner),'stop')
- ret = None
- if self.__class__.__dict__.has_key('plugout'): ret = self.plugout()
- self._owner.debug_flags.remove(self.DBG_LINE)
- for method in self._exported_methods: del self._owner.__dict__[method.__name__]
- for method in self._old_owners_methods: self._owner.__dict__[method.__name__]=method
- del self._owner.__dict__[self.__class__.__name__]
- return ret
-
- def DEBUG(self,text,severity='info'):
- """ Feed a provided debug line to main instance's debug facility along with our ID string. """
- self._owner.DEBUG(self.DBG_LINE,text,severity)
-
-import transports,dispatcher,auth,roster
-class CommonClient:
- """ Base for Client and Component classes."""
- def __init__(self,server,port=5222,debug=['always', 'nodebuilder']):
- """ Caches server name and (optionally) port to connect to. "debug" parameter specifies
- the debug IDs that will go into debug output. You can either specifiy an "include"
- or "exclude" list. The latter is done via adding "always" pseudo-ID to the list.
- Full list: ['nodebuilder', 'dispatcher', 'gen_auth', 'SASL_auth', 'bind', 'socket',
- 'CONNECTproxy', 'TLS', 'roster', 'browser', 'ibb'] . """
- if self.__class__.__name__=='Client': self.Namespace,self.DBG='jabber:client',DBG_CLIENT
- elif self.__class__.__name__=='Component': self.Namespace,self.DBG=dispatcher.NS_COMPONENT_ACCEPT,DBG_COMPONENT
- self.defaultNamespace=self.Namespace
- self.disconnect_handlers=[]
- self.Server=server
- self.Port=port
- if debug and type(debug)<>list: debug=['always', 'nodebuilder']
- self._DEBUG=Debug.Debug(debug)
- self.DEBUG=self._DEBUG.Show
- self.debug_flags=self._DEBUG.debug_flags
- self.debug_flags.append(self.DBG)
- self._owner=self
- self._registered_name=None
- self.RegisterDisconnectHandler(self.DisconnectHandler)
- self.connected=''
- self._route=0
-
- def RegisterDisconnectHandler(self,handler):
- """ Register handler that will be called on disconnect."""
- self.disconnect_handlers.append(handler)
-
- def UnregisterDisconnectHandler(self,handler):
- """ Unregister handler that is called on disconnect."""
- self.disconnect_handlers.remove(handler)
-
- def disconnected(self):
- """ Called on disconnection. Calls disconnect handlers and cleans things up. """
- self.connected=''
- self.DEBUG(self.DBG,'Disconnect detected','stop')
- self.disconnect_handlers.reverse()
- for i in self.disconnect_handlers: i()
- self.disconnect_handlers.reverse()
- if self.__dict__.has_key('TLS'): self.TLS.PlugOut()
-
- def DisconnectHandler(self):
- """ Default disconnect handler. Just raises an IOError.
- If you choosed to use this class in your production client,
- override this method or at least unregister it. """
- raise IOError('Disconnected from server.')
-
- def event(self,eventName,args={}):
- """ Default event handler. To be overriden. """
- print "Event: ",(eventName,args)
-
- def isConnected(self):
- """ Returns connection state. F.e.: None / 'tls' / 'tcp+non_sasl' . """
- return self.connected
-
- def reconnectAndReauth(self):
- """ Example of reconnection method. In fact, it can be used to batch connection and auth as well. """
- handlerssave=self.Dispatcher.dumpHandlers()
- if self.__dict__.has_key('ComponentBind'): self.ComponentBind.PlugOut()
- if self.__dict__.has_key('Bind'): self.Bind.PlugOut()
- self._route=0
- if self.__dict__.has_key('NonSASL'): self.NonSASL.PlugOut()
- if self.__dict__.has_key('SASL'): self.SASL.PlugOut()
- if self.__dict__.has_key('TLS'): self.TLS.PlugOut()
- self.Dispatcher.PlugOut()
- if self.__dict__.has_key('HTTPPROXYsocket'): self.HTTPPROXYsocket.PlugOut()
- if self.__dict__.has_key('TCPsocket'): self.TCPsocket.PlugOut()
- if not self.connect(server=self._Server,proxy=self._Proxy): return
- if not self.auth(self._User,self._Password,self._Resource): return
- self.Dispatcher.restoreHandlers(handlerssave)
- return self.connected
-
- def connect(self,server=None,proxy=None,ssl=None,use_srv=None):
- """ Make a tcp/ip connection, protect it with tls/ssl if possible and start XMPP stream.
- Returns None or 'tcp' or 'tls', depending on the result."""
- if not server: server=(self.Server,self.Port)
- if proxy: sock=transports.HTTPPROXYsocket(proxy,server,use_srv)
- else: sock=transports.TCPsocket(server,use_srv)
- connected=sock.PlugIn(self)
- if not connected:
- sock.PlugOut()
- return
- self._Server,self._Proxy=server,proxy
- self.connected='tcp'
- if (ssl is None and self.Connection.getPort() in (5223, 443)) or ssl:
- try: # FIXME. This should be done in transports.py
- transports.TLS().PlugIn(self,now=1)
- self.connected='ssl'
- except socket.sslerror:
- return
- dispatcher.Dispatcher().PlugIn(self)
- while self.Dispatcher.Stream._document_attrs is None:
- if not self.Process(1): return
- if self.Dispatcher.Stream._document_attrs.has_key('version') and self.Dispatcher.Stream._document_attrs['version']=='1.0':
- while not self.Dispatcher.Stream.features and self.Process(1): pass # If we get version 1.0 stream the features tag MUST BE presented
- return self.connected
-
-class Client(CommonClient):
- """ Example client class, based on CommonClient. """
- def connect(self,server=None,proxy=None,secure=None,use_srv=True):
- """ Connect to jabber server. If you want to specify different ip/port to connect to you can
- pass it as tuple as first parameter. If there is HTTP proxy between you and server
- specify it's address and credentials (if needed) in the second argument.
- If you want ssl/tls support to be discovered and enable automatically - leave third argument as None. (ssl will be autodetected only if port is 5223 or 443)
- If you want to force SSL start (i.e. if port 5223 or 443 is remapped to some non-standard port) then set it to 1.
- If you want to disable tls/ssl support completely, set it to 0.
- Example: connect(('192.168.5.5',5222),{'host':'proxy.my.net','port':8080,'user':'me','password':'secret'})
- Returns '' or 'tcp' or 'tls', depending on the result."""
- if not CommonClient.connect(self,server,proxy,secure,use_srv) or secure<>None and not secure: return self.connected
- transports.TLS().PlugIn(self)
- if not self.Dispatcher.Stream._document_attrs.has_key('version') or not self.Dispatcher.Stream._document_attrs['version']=='1.0': return self.connected
- while not self.Dispatcher.Stream.features and self.Process(1): pass # If we get version 1.0 stream the features tag MUST BE presented
- if not self.Dispatcher.Stream.features.getTag('starttls'): return self.connected # TLS not supported by server
- while not self.TLS.starttls and self.Process(1): pass
- if not hasattr(self, 'TLS') or self.TLS.starttls!='success': self.event('tls_failed'); return self.connected
- self.connected='tls'
- return self.connected
-
- def auth(self,user,password,resource='',sasl=1):
- """ Authenticate connnection and bind resource. If resource is not provided
- random one or library name used. """
- self._User,self._Password,self._Resource=user,password,resource
- while not self.Dispatcher.Stream._document_attrs and self.Process(1): pass
- if self.Dispatcher.Stream._document_attrs.has_key('version') and self.Dispatcher.Stream._document_attrs['version']=='1.0':
- while not self.Dispatcher.Stream.features and self.Process(1): pass # If we get version 1.0 stream the features tag MUST BE presented
- if sasl: auth.SASL(user,password).PlugIn(self)
- if not sasl or self.SASL.startsasl=='not-supported':
- if not resource: resource='xmpppy'
- if auth.NonSASL(user,password,resource).PlugIn(self):
- self.connected+='+old_auth'
- return 'old_auth'
- return
- self.SASL.auth()
- while self.SASL.startsasl=='in-process' and self.Process(1): pass
- if self.SASL.startsasl=='success':
- auth.Bind().PlugIn(self)
- while self.Bind.bound is None and self.Process(1): pass
- if self.Bind.Bind(resource):
- self.connected+='+sasl'
- return 'sasl'
- else:
- if self.__dict__.has_key('SASL'): self.SASL.PlugOut()
-
- def getRoster(self):
- """ Return the Roster instance, previously plugging it in and
- requesting roster from server if needed. """
- if not self.__dict__.has_key('Roster'): roster.Roster().PlugIn(self)
- return self.Roster.getRoster()
-
- def sendInitPresence(self,requestRoster=1):
- """ Send roster request and initial <presence/>.
- You can disable the first by setting requestRoster argument to 0. """
- self.sendPresence(requestRoster=requestRoster)
-
- def sendPresence(self,jid=None,typ=None,requestRoster=0):
- """ Send some specific presence state.
- Can also request roster from server if according agrument is set."""
- if requestRoster: roster.Roster().PlugIn(self)
- self.send(dispatcher.Presence(to=jid, typ=typ))
-
-class Component(CommonClient):
- """ Component class. The only difference from CommonClient is ability to perform component authentication. """
- def __init__(self,transport,port=5347,typ=None,debug=['always', 'nodebuilder'],domains=None,sasl=0,bind=0,route=0,xcp=0):
- """ Init function for Components.
- As components use a different auth mechanism which includes the namespace of the component.
- Jabberd1.4 and Ejabberd use the default namespace then for all client messages.
- Jabberd2 uses jabber:client.
- 'transport' argument is a transport name that you are going to serve (f.e. "irc.localhost").
- 'port' can be specified if 'transport' resolves to correct IP. If it is not then you'll have to specify IP
- and port while calling "connect()".
- If you are going to serve several different domains with single Component instance - you must list them ALL
- in the 'domains' argument.
- For jabberd2 servers you should set typ='jabberd2' argument.
- """
- CommonClient.__init__(self,transport,port=port,debug=debug)
- self.typ=typ
- self.sasl=sasl
- self.bind=bind
- self.route=route
- self.xcp=xcp
- if domains:
- self.domains=domains
- else:
- self.domains=[transport]
-
- def connect(self,server=None,proxy=None):
- """ This will connect to the server, and if the features tag is found then set
- the namespace to be jabber:client as that is required for jabberd2.
- 'server' and 'proxy' arguments have the same meaning as in xmpp.Client.connect() """
- if self.sasl:
- self.Namespace=auth.NS_COMPONENT_1
- self.Server=server[0]
- CommonClient.connect(self,server=server,proxy=proxy)
- if self.connected and (self.typ=='jabberd2' or not self.typ and self.Dispatcher.Stream.features != None) and (not self.xcp):
- self.defaultNamespace=auth.NS_CLIENT
- self.Dispatcher.RegisterNamespace(self.defaultNamespace)
- self.Dispatcher.RegisterProtocol('iq',dispatcher.Iq)
- self.Dispatcher.RegisterProtocol('message',dispatcher.Message)
- self.Dispatcher.RegisterProtocol('presence',dispatcher.Presence)
- return self.connected
-
- def dobind(self, sasl):
- # This has to be done before binding, because we can receive a route stanza before binding finishes
- self._route = self.route
- if self.bind:
- for domain in self.domains:
- auth.ComponentBind(sasl).PlugIn(self)
- while self.ComponentBind.bound is None: self.Process(1)
- if (not self.ComponentBind.Bind(domain)):
- self.ComponentBind.PlugOut()
- return
- self.ComponentBind.PlugOut()
-
- def auth(self,name,password,dup=None):
- """ Authenticate component "name" with password "password"."""
- self._User,self._Password,self._Resource=name,password,''
- try:
- if self.sasl: auth.SASL(name,password).PlugIn(self)
- if not self.sasl or self.SASL.startsasl=='not-supported':
- if auth.NonSASL(name,password,'').PlugIn(self):
- self.dobind(sasl=False)
- self.connected+='+old_auth'
- return 'old_auth'
- return
- self.SASL.auth()
- while self.SASL.startsasl=='in-process' and self.Process(1): pass
- if self.SASL.startsasl=='success':
- self.dobind(sasl=True)
- self.connected+='+sasl'
- return 'sasl'
- else:
- raise auth.NotAuthorized(self.SASL.startsasl)
- except:
- self.DEBUG(self.DBG,"Failed to authenticate %s"%name,'error')