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+## roster.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: roster.py,v 1.20 2005/07/13 13:22:52 snakeru Exp $
+
+"""
+Simple roster implementation. Can be used though for different tasks like
+mass-renaming of contacts.
+"""
+
+from protocol import *
+from client import PlugIn
+
+class Roster(PlugIn):
+ """ Defines a plenty of methods that will allow you to manage roster.
+ Also automatically track presences from remote JIDs taking into
+ account that every JID can have multiple resources connected. Does not
+ currently support 'error' presences.
+ You can also use mapping interface for access to the internal representation of
+ contacts in roster.
+ """
+ def __init__(self):
+ """ Init internal variables. """
+ PlugIn.__init__(self)
+ self.DBG_LINE='roster'
+ self._data = {}
+ self.set=None
+ self._exported_methods=[self.getRoster]
+
+ def plugin(self,owner,request=1):
+ """ Register presence and subscription trackers in the owner's dispatcher.
+ Also request roster from server if the 'request' argument is set.
+ Used internally."""
+ self._owner.RegisterHandler('iq',self.RosterIqHandler,'result',NS_ROSTER)
+ self._owner.RegisterHandler('iq',self.RosterIqHandler,'set',NS_ROSTER)
+ self._owner.RegisterHandler('presence',self.PresenceHandler)
+ if request: self.Request()
+
+ def Request(self,force=0):
+ """ Request roster from server if it were not yet requested
+ (or if the 'force' argument is set). """
+ if self.set is None: self.set=0
+ elif not force: return
+ self._owner.send(Iq('get',NS_ROSTER))
+ self.DEBUG('Roster requested from server','start')
+
+ def getRoster(self):
+ """ Requests roster from server if neccessary and returns self."""
+ if not self.set: self.Request()
+ while not self.set: self._owner.Process(10)
+ return self
+
+ def RosterIqHandler(self,dis,stanza):
+ """ Subscription tracker. Used internally for setting items state in
+ internal roster representation. """
+ for item in stanza.getTag('query').getTags('item'):
+ jid=item.getAttr('jid')
+ if item.getAttr('subscription')=='remove':
+ if self._data.has_key(jid): del self._data[jid]
+ raise NodeProcessed # a MUST
+ self.DEBUG('Setting roster item %s...'%jid,'ok')
+ if not self._data.has_key(jid): self._data[jid]={}
+ self._data[jid]['name']=item.getAttr('name')
+ self._data[jid]['ask']=item.getAttr('ask')
+ self._data[jid]['subscription']=item.getAttr('subscription')
+ self._data[jid]['groups']=[]
+ if not self._data[jid].has_key('resources'): self._data[jid]['resources']={}
+ for group in item.getTags('group'): self._data[jid]['groups'].append(group.getData())
+ self._data[self._owner.User+'@'+self._owner.Server]={'resources':{},'name':None,'ask':None,'subscription':None,'groups':None,}
+ self.set=1
+ raise NodeProcessed # a MUST. Otherwise you'll get back an <iq type='error'/>
+
+ def PresenceHandler(self,dis,pres):
+ """ Presence tracker. Used internally for setting items' resources state in
+ internal roster representation. """
+ jid=JID(pres.getFrom())
+ if not self._data.has_key(jid.getStripped()): self._data[jid.getStripped()]={'name':None,'ask':None,'subscription':'none','groups':['Not in roster'],'resources':{}}
+
+ item=self._data[jid.getStripped()]
+ typ=pres.getType()
+
+ if not typ:
+ self.DEBUG('Setting roster item %s for resource %s...'%(jid.getStripped(),jid.getResource()),'ok')
+ item['resources'][jid.getResource()]=res={'show':None,'status':None,'priority':'0','timestamp':None}
+ if pres.getTag('show'): res['show']=pres.getShow()
+ if pres.getTag('status'): res['status']=pres.getStatus()
+ if pres.getTag('priority'): res['priority']=pres.getPriority()
+ if not pres.getTimestamp(): pres.setTimestamp()
+ res['timestamp']=pres.getTimestamp()
+ elif typ=='unavailable' and item['resources'].has_key(jid.getResource()): del item['resources'][jid.getResource()]
+ # Need to handle type='error' also
+
+ def _getItemData(self,jid,dataname):
+ """ Return specific jid's representation in internal format. Used internally. """
+ jid=jid[:(jid+'/').find('/')]
+ return self._data[jid][dataname]
+ def _getResourceData(self,jid,dataname):
+ """ Return specific jid's resource representation in internal format. Used internally. """
+ if jid.find('/')+1:
+ jid,resource=jid.split('/',1)
+ if self._data[jid]['resources'].has_key(resource): return self._data[jid]['resources'][resource][dataname]
+ elif self._data[jid]['resources'].keys():
+ lastpri=-129
+ for r in self._data[jid]['resources'].keys():
+ if int(self._data[jid]['resources'][r]['priority'])>lastpri: resource,lastpri=r,int(self._data[jid]['resources'][r]['priority'])
+ return self._data[jid]['resources'][resource][dataname]
+ def delItem(self,jid):
+ """ Delete contact 'jid' from roster."""
+ self._owner.send(Iq('set',NS_ROSTER,payload=[Node('item',{'jid':jid,'subscription':'remove'})]))
+ def getAsk(self,jid):
+ """ Returns 'ask' value of contact 'jid'."""
+ return self._getItemData(jid,'ask')
+ def getGroups(self,jid):
+ """ Returns groups list that contact 'jid' belongs to."""
+ return self._getItemData(jid,'groups')
+ def getName(self,jid):
+ """ Returns name of contact 'jid'."""
+ return self._getItemData(jid,'name')
+ def getPriority(self,jid):
+ """ Returns priority of contact 'jid'. 'jid' should be a full (not bare) JID."""
+ return self._getResourceData(jid,'priority')
+ def getRawRoster(self):
+ """ Returns roster representation in internal format. """
+ return self._data
+ def getRawItem(self,jid):
+ """ Returns roster item 'jid' representation in internal format. """
+ return self._data[jid[:(jid+'/').find('/')]]
+ def getShow(self, jid):
+ """ Returns 'show' value of contact 'jid'. 'jid' should be a full (not bare) JID."""
+ return self._getResourceData(jid,'show')
+ def getStatus(self, jid):
+ """ Returns 'status' value of contact 'jid'. 'jid' should be a full (not bare) JID."""
+ return self._getResourceData(jid,'status')
+ def getSubscription(self,jid):
+ """ Returns 'subscription' value of contact 'jid'."""
+ return self._getItemData(jid,'subscription')
+ def getResources(self,jid):
+ """ Returns list of connected resources of contact 'jid'."""
+ return self._data[jid[:(jid+'/').find('/')]]['resources'].keys()
+ def setItem(self,jid,name=None,groups=[]):
+ """ Creates/renames contact 'jid' and sets the groups list that it now belongs to."""
+ iq=Iq('set',NS_ROSTER)
+ query=iq.getTag('query')
+ attrs={'jid':jid}
+ if name: attrs['name']=name
+ item=query.setTag('item',attrs)
+ for group in groups: item.addChild(node=Node('group',payload=[group]))
+ self._owner.send(iq)
+ def getItems(self):
+ """ Return list of all [bare] JIDs that the roster is currently tracks."""
+ return self._data.keys()
+ def keys(self):
+ """ Same as getItems. Provided for the sake of dictionary interface."""
+ return self._data.keys()
+ def __getitem__(self,item):
+ """ Get the contact in the internal format. Raises KeyError if JID 'item' is not in roster."""
+ return self._data[item]
+ def getItem(self,item):
+ """ Get the contact in the internal format (or None if JID 'item' is not in roster)."""
+ if self._data.has_key(item): return self._data[item]
+ def Subscribe(self,jid):
+ """ Send subscription request to JID 'jid'."""
+ self._owner.send(Presence(jid,'subscribe'))
+ def Unsubscribe(self,jid):
+ """ Ask for removing our subscription for JID 'jid'."""
+ self._owner.send(Presence(jid,'unsubscribe'))
+ def Authorize(self,jid):
+ """ Authorise JID 'jid'. Works only if these JID requested auth previously. """
+ self._owner.send(Presence(jid,'subscribed'))
+ def Unauthorize(self,jid):
+ """ Unauthorise JID 'jid'. Use for declining authorisation request
+ or for removing existing authorization. """
+ self._owner.send(Presence(jid,'unsubscribed'))
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 06:41:18 +0000