gajim-plural/src/common/xmpp/features_nb.py

##   features.py
##
##   Copyright (C) 2003-2004 Alexey "Snake" Nezhdanov
##   Copyright (C) 2007 Julien Pivotto <roidelapluie@gmail.com>
##
##   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 1.22 2005/09/30 20:13:04 mikealbon Exp $

'''
Different stuff that wasn't worth separating it into modules
(Registration, Privacy Lists, ...)
'''

from protocol import NS_REGISTER, NS_PRIVACY, NS_DATA, Iq, isResultNode, Node

def _on_default_response(disp, iq, cb):
	def _on_response(resp):
		if isResultNode(resp):
			if cb:
				cb(True)
		elif cb:
			cb(False)
	disp.SendAndCallForResponse(iq, _on_response)

###############################################################################
### Registration
###############################################################################

REGISTER_DATA_RECEIVED = 'REGISTER DATA RECEIVED'

def getRegInfo(disp, host, info={}, sync=True):
	'''
	Gets registration form from remote host. Info dict can be prefilled
	:param disp: plugged dispatcher instance
	:param info: dict, like {'username':'joey'}. 

	See JEP-0077 for details.
	'''
	iq=Iq('get',NS_REGISTER,to=host)
	for i in info.keys():
		iq.setTagData(i,info[i])
	if sync:
		disp.SendAndCallForResponse(iq, lambda resp:
			_ReceivedRegInfo(disp.Dispatcher, resp, host))
	else:
		disp.SendAndCallForResponse(iq, _ReceivedRegInfo, {'agent': host })

def _ReceivedRegInfo(con, resp, agent):
	Iq('get',NS_REGISTER,to=agent)
	if not isResultNode(resp):
		error_msg = resp.getErrorMsg()
		con.Event(NS_REGISTER,REGISTER_DATA_RECEIVED,(agent,None,False,error_msg))
		return
	tag=resp.getTag('query',namespace=NS_REGISTER)
	if not tag:
		error_msg = resp.getErrorMsg()
		con.Event(NS_REGISTER,REGISTER_DATA_RECEIVED,(agent,None,False,error_msg))
		return
	df=tag.getTag('x',namespace=NS_DATA)
	if df:
		con.Event(NS_REGISTER,REGISTER_DATA_RECEIVED,(agent,df,True,''))
		return
	df={}
	for i in resp.getQueryPayload():
		if not isinstance(i, Node):
			continue
		df[i.getName()] = i.getData()
	con.Event(NS_REGISTER, REGISTER_DATA_RECEIVED, (agent,df,False,''))

def register(disp, host, info, cb):
	'''
	Perform registration on remote server with provided info.
		
	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 not isinstance(info, dict):
		info=info.asDict()
	for i in info.keys():
		iq.setTag('query').setTagData(i,info[i])
	disp.SendAndCallForResponse(iq, cb)

def unregister(disp, host, cb):
	'''
	Unregisters with host (permanently removes account). Returns true on success
	'''
	iq = Iq('set', NS_REGISTER, to=host, payload=[Node('remove')])
	_on_default_response(disp, iq, cb)

def changePasswordTo(disp, newpassword, host=None, cb = None):
	'''
	Changes password on specified or current (if not specified) server.
	Returns true on success.
	'''
	if not host:
		host = disp._owner.Server
	iq = Iq('set',NS_REGISTER,to=host, payload=[Node('username',
			payload=[disp._owner.Server]),Node('password',payload=[newpassword])])
	_on_default_response(disp, iq, cb)

###############################################################################
### Privacy List
###############################################################################

PL_TYPE_JID = 'jid'
PL_TYPE_GROUP = 'group'
PL_TYPE_SUBC = 'subscription'
PL_ACT_ALLOW = 'allow'
PL_ACT_DENY = 'deny'

PRIVACY_LISTS_RECEIVED = 'PRIVACY LISTS RECEIVED'
PRIVACY_LIST_RECEIVED = 'PRIVACY LIST RECEIVED'
PRIVACY_LISTS_ACTIVE_DEFAULT = 'PRIVACY LISTS ACTIVE DEFAULT'

def getPrivacyLists(disp):
	'''
	Requests privacy lists from connected server.
	Returns dictionary of existing lists on success.
	'''
	iq = Iq('get', NS_PRIVACY)
	def _on_response(resp):
		dict_ = {'lists': []}
		if not isResultNode(resp):
			disp.Event(NS_PRIVACY, PRIVACY_LISTS_RECEIVED, (False))
			return
		for list_ in resp.getQueryPayload():
			if list_.getName()=='list':
				dict_['lists'].append(list_.getAttr('name'))
			else:
				dict_[list_.getName()]=list_.getAttr('name')
		disp.Event(NS_PRIVACY, PRIVACY_LISTS_RECEIVED, (dict_))
	disp.SendAndCallForResponse(iq, _on_response)

def getActiveAndDefaultPrivacyLists(disp):
	iq = Iq('get', NS_PRIVACY)
	def _on_response(resp):
		dict_ = {'active': '', 'default': ''}
		if not isResultNode(resp):
			disp.Event(NS_PRIVACY, PRIVACY_LISTS_ACTIVE_DEFAULT, (False))
			return
		for list_ in resp.getQueryPayload():
			if list_.getName() == 'active':
				dict_['active'] = list_.getAttr('name')
			elif list_.getName() == 'default':
				dict_['default'] = list_.getAttr('name')
		disp.Event(NS_PRIVACY, PRIVACY_LISTS_ACTIVE_DEFAULT, (dict_))
	disp.SendAndCallForResponse(iq, _on_response)

def getPrivacyList(disp, listname):
	'''
	Requests specific privacy list listname. Returns list of XML nodes (rules)
	taken from the server responce.
	'''
	def _on_response(resp):
		if not isResultNode(resp):
			disp.Event(NS_PRIVACY, PRIVACY_LIST_RECEIVED, (False))
			return
		disp.Event(NS_PRIVACY, PRIVACY_LIST_RECEIVED, (resp))
	iq = Iq('get', NS_PRIVACY, payload=[Node('list', {'name': listname})])
	disp.SendAndCallForResponse(iq, _on_response)

def setActivePrivacyList(disp, listname=None, typ='active', cb=None):
	'''
	Switches privacy list 'listname' to specified type.
	By default the type is 'active'. Returns true on success.
	'''
	if listname:
		attrs={'name':listname}
	else:
		attrs={}
	iq = Iq('set',NS_PRIVACY,payload=[Node(typ,attrs)])
	_on_default_response(disp, iq, cb)

def setDefaultPrivacyList(disp, listname=None):
	''' Sets the default privacy list as 'listname'. Returns true on success. '''
	return setActivePrivacyList(disp, listname,'default')

def setPrivacyList(disp, listname, tags):
	'''
	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.
	'''
	iq = Iq('set', NS_PRIVACY, xmlns = '')
	list_query = iq.getTag('query').setTag('list', {'name': listname})
	for item in tags:
		if 'type' in item and 'value' in item:
			item_tag = list_query.setTag('item', {'action': item['action'],
				'order': item['order'], 'type': item['type'], 
				'value': item['value']})
		else:
			item_tag = list_query.setTag('item', {'action': item['action'],
				'order': item['order']})
		if 'child' in item:
			for child_tag in item['child']:
				item_tag.setTag(child_tag)
	_on_default_response(disp, iq, None)

def delPrivacyList(disp, listname, cb=None):
	''' Deletes privacy list 'listname'. Returns true on success. '''
	iq = Iq('set',NS_PRIVACY,payload=[Node('list',{'name':listname})])
	_on_default_response(disp, iq, cb)

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