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+## features.py
+##
+## Copyright (C) 2003-2004 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: features.py,v 1.25 2009/04/07 07:11:48 snakeru Exp $
+
+"""
+This module contains variable stuff that is not worth splitting into separate modules.
+Here is:
+ DISCO client and agents-to-DISCO and browse-to-DISCO emulators.
+ IBR and password manager.
+ jabber:iq:privacy methods
+All these methods takes 'disp' first argument that should be already connected
+(and in most cases already authorised) dispatcher instance.
+"""
+
+from protocol import *
+
+REGISTER_DATA_RECEIVED='REGISTER DATA RECEIVED'
+
+### DISCO ### http://jabber.org/protocol/disco ### JEP-0030 ####################
+### Browse ### jabber:iq:browse ### JEP-0030 ###################################
+### Agents ### jabber:iq:agents ### JEP-0030 ###################################
+def _discover(disp,ns,jid,node=None,fb2b=0,fb2a=1):
+ """ Try to obtain info from the remote object.
+ If remote object doesn't support disco fall back to browse (if fb2b is true)
+ and if it doesnt support browse (or fb2b is not true) fall back to agents protocol
+ (if gb2a is true). Returns obtained info. Used internally. """
+ iq=Iq(to=jid,typ='get',queryNS=ns)
+ if node: iq.setQuerynode(node)
+ rep=disp.SendAndWaitForResponse(iq)
+ if fb2b and not isResultNode(rep): rep=disp.SendAndWaitForResponse(Iq(to=jid,typ='get',queryNS=NS_BROWSE)) # Fallback to browse
+ if fb2a and not isResultNode(rep): rep=disp.SendAndWaitForResponse(Iq(to=jid,typ='get',queryNS=NS_AGENTS)) # Fallback to agents
+ if isResultNode(rep): return [n for n in rep.getQueryPayload() if isinstance(n, Node)]
+ return []
+
+def discoverItems(disp,jid,node=None):
+ """ Query remote object about any items that it contains. Return items list. """
+ """ According to JEP-0030:
+ query MAY have node attribute
+ item: MUST HAVE jid attribute and MAY HAVE name, node, action attributes.
+ action attribute of item can be either of remove or update value."""
+ ret=[]
+ for i in _discover(disp,NS_DISCO_ITEMS,jid,node):
+ if i.getName()=='agent' and i.getTag('name'): i.setAttr('name',i.getTagData('name'))
+ ret.append(i.attrs)
+ return ret
+
+def discoverInfo(disp,jid,node=None):
+ """ Query remote object about info that it publishes. Returns identities and features lists."""
+ """ According to JEP-0030:
+ query MAY have node attribute
+ identity: MUST HAVE category and name attributes and MAY HAVE type attribute.
+ feature: MUST HAVE var attribute"""
+ identities , features = [] , []
+ for i in _discover(disp,NS_DISCO_INFO,jid,node):
+ if i.getName()=='identity': identities.append(i.attrs)
+ elif i.getName()=='feature': features.append(i.getAttr('var'))
+ elif i.getName()=='agent':
+ if i.getTag('name'): i.setAttr('name',i.getTagData('name'))
+ if i.getTag('description'): i.setAttr('name',i.getTagData('description'))
+ identities.append(i.attrs)
+ if i.getTag('groupchat'): features.append(NS_GROUPCHAT)
+ if i.getTag('register'): features.append(NS_REGISTER)
+ if i.getTag('search'): features.append(NS_SEARCH)
+ return identities , features
+
+### Registration ### jabber:iq:register ### JEP-0077 ###########################
+def getRegInfo(disp,host,info={},sync=True):
+ """ Gets registration form from remote host.
+ You can pre-fill the info dictionary.
+ F.e. if you are requesting info on registering user joey than specify
+ info as {'username':'joey'}. See JEP-0077 for details.
+ 'disp' must be connected dispatcher instance."""
+ iq=Iq('get',NS_REGISTER,to=host)
+ for i in info.keys(): iq.setTagData(i,info[i])
+ if sync:
+ resp=disp.SendAndWaitForResponse(iq)
+ _ReceivedRegInfo(disp.Dispatcher,resp, host)
+ return resp
+ else: disp.SendAndCallForResponse(iq,_ReceivedRegInfo, {'agent': host})
+
+def _ReceivedRegInfo(con, resp, agent):
+ iq=Iq('get',NS_REGISTER,to=agent)
+ if not isResultNode(resp): return
+ df=resp.getTag('query',namespace=NS_REGISTER).getTag('x',namespace=NS_DATA)
+ if df:
+ con.Event(NS_REGISTER,REGISTER_DATA_RECEIVED,(agent, DataForm(node=df)))
+ return
+ df=DataForm(typ='form')
+ for i in resp.getQueryPayload():
+ if type(i)<>type(iq): pass
+ elif i.getName()=='instructions': df.addInstructions(i.getData())
+ else: df.setField(i.getName()).setValue(i.getData())
+ con.Event(NS_REGISTER,REGISTER_DATA_RECEIVED,(agent, df))
+
+def register(disp,host,info):
+ """ Perform registration on remote server with provided info.
+ disp must be connected dispatcher instance.
+ Returns true or false depending on registration result.
+ If registration fails you can get additional info from the dispatcher's owner
+ attributes lastErrNode, lastErr and lastErrCode.
+ """
+ iq=Iq('set',NS_REGISTER,to=host)
+ if type(info)<>type({}): info=info.asDict()
+ for i in info.keys(): iq.setTag('query').setTagData(i,info[i])
+ resp=disp.SendAndWaitForResponse(iq)
+ if isResultNode(resp): return 1
+
+def unregister(disp,host):
+ """ Unregisters with host (permanently removes account).
+ disp must be connected and authorized dispatcher instance.
+ Returns true on success."""
+ resp=disp.SendAndWaitForResponse(Iq('set',NS_REGISTER,to=host,payload=[Node('remove')]))
+ if isResultNode(resp): return 1
+
+def changePasswordTo(disp,newpassword,host=None):
+ """ Changes password on specified or current (if not specified) server.
+ disp must be connected and authorized dispatcher instance.
+ Returns true on success."""
+ if not host: host=disp._owner.Server
+ resp=disp.SendAndWaitForResponse(Iq('set',NS_REGISTER,to=host,payload=[Node('username',payload=[disp._owner.Server]),Node('password',payload=[newpassword])]))
+ if isResultNode(resp): return 1
+
+### Privacy ### jabber:iq:privacy ### draft-ietf-xmpp-im-19 ####################
+#type=[jid|group|subscription]
+#action=[allow|deny]
+
+def getPrivacyLists(disp):
+ """ Requests privacy lists from connected server.
+ Returns dictionary of existing lists on success."""
+ try:
+ dict={'lists':[]}
+ resp=disp.SendAndWaitForResponse(Iq('get',NS_PRIVACY))
+ if not isResultNode(resp): return
+ for list in resp.getQueryPayload():
+ if list.getName()=='list': dict['lists'].append(list.getAttr('name'))
+ else: dict[list.getName()]=list.getAttr('name')
+ return dict
+ except: pass
+
+def getPrivacyList(disp,listname):
+ """ Requests specific privacy list listname. Returns list of XML nodes (rules)
+ taken from the server responce."""
+ try:
+ resp=disp.SendAndWaitForResponse(Iq('get',NS_PRIVACY,payload=[Node('list',{'name':listname})]))
+ if isResultNode(resp): return resp.getQueryPayload()[0]
+ except: pass
+
+def setActivePrivacyList(disp,listname=None,typ='active'):
+ """ Switches privacy list 'listname' to specified type.
+ By default the type is 'active'. Returns true on success."""
+ if listname: attrs={'name':listname}
+ else: attrs={}
+ resp=disp.SendAndWaitForResponse(Iq('set',NS_PRIVACY,payload=[Node(typ,attrs)]))
+ if isResultNode(resp): return 1
+
+def setDefaultPrivacyList(disp,listname=None):
+ """ Sets the default privacy list as 'listname'. Returns true on success."""
+ return setActivePrivacyList(disp,listname,'default')
+
+def setPrivacyList(disp,list):
+ """ Set the ruleset. 'list' should be the simpleXML node formatted
+ according to RFC 3921 (XMPP-IM) (I.e. Node('list',{'name':listname},payload=[...]) )
+ Returns true on success."""
+ resp=disp.SendAndWaitForResponse(Iq('set',NS_PRIVACY,payload=[list]))
+ if isResultNode(resp): return 1
+
+def delPrivacyList(disp,listname):
+ """ Deletes privacy list 'listname'. Returns true on success."""
+ resp=disp.SendAndWaitForResponse(Iq('set',NS_PRIVACY,payload=[Node('list',{'name':listname})]))
+ if isResultNode(resp): return 1
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