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"""
Creating a SleekXMPP Plugin
This is a minimal implementation of XEP-0077 to serve
as a tutorial for creating SleekXMPP plugins.
"""
from sleekxmpp.plugins.base import base_plugin
from sleekxmpp.xmlstream.handler.callback import Callback
from sleekxmpp.xmlstream.matcher.xpath import MatchXPath
from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin
from sleekxmpp import Iq
from user import UserHandler
from config import config
class Registration(ElementBase):
namespace = 'jabber:iq:register'
name = 'query'
plugin_attrib = 'register'
interfaces = set(('pubkey', 'privkey', 'salt'
'registered', 'remove', 'instructions'))
sub_interfaces = interfaces
def getRegistered(self):
present = self.xml.find('{%s}registered' % self.namespace)
return present is not None
def getRemove(self):
present = self.xml.find('{%s}remove' % self.namespace)
return present is not None
def setRegistered(self, registered):
if registered:
self.addField('registered')
else:
del self['registered']
def setRemove(self, remove):
if remove:
self.addField('remove')
else:
del self['remove']
def addField(self, name):
itemXML = ET.Element('{%s}%s' % (self.namespace, name))
self.xml.append(itemXML)
class UserStore(object):
def __init__(self):
self.users = {}
def __getitem__(self, jid):
return self.users.get(jid, None)
def register(self, jid, registration):
username = registration['username']
def filter_usernames(user):
return user != jid and self.users[user]['username'] == username
conflicts = filter(filter_usernames, self.users.keys())
if conflicts:
return False
self.users[jid] = registration
return True
def unregister(self, jid):
del self.users[jid]
class xep_0077(base_plugin):
"""
XEP-0077 In-Band Registration
"""
def plugin_init(self):
self.description = "In-Band Registration"
self.xep = "0077"
self.form_fields = ()
self.form_instructions = ""
self.backend = UserHandler(config.root)
self.xmpp.registerHandler(
Callback('In-Band Registration',
MatchXPath('{%s}iq/{jabber:iq:register}query' % self.xmpp.default_ns),
self.__handleRegistration))
register_stanza_plugin(Iq, Registration)
def post_init(self):
base_plugin.post_init(self)
self.xmpp['xep_0030'].add_feature("jabber:iq:register")
def __handleRegistration(self, iq):
if iq['type'] == 'get':
# Registration form requested
self.sendRegistrationForm(iq, self.backend)
elif iq['type'] == 'set':
if iq['register']['remove']:
# Remove an account
self.backend.unregister(iq['from'].bare)
#self.xmpp.event('unregistered_user', iq)
iq.reply().send()
return
for field in self.form_fields:
if not iq['register'][field]:
# Incomplete Registration
self._sendError(iq, '406', 'modify', 'not-acceptable',
"Please fill in all fields.")
return
if self.backend.register(iq['from'].bare, iq['register']):
# Successful registration
#self.xmpp.event('registered_user', iq)
iq.reply().setPayload(iq['register'].xml)
iq.send()
else:
# Conflicting registration
self._sendError(iq, '409', 'cancel', 'conflict',
"That username is already taken.")
def setForm(self, *fields):
self.form_fields = fields
def setInstructions(self, instructions):
self.form_instructions = instructions
def sendRegistrationForm(self, iq, userHandler):
reg = iq['register']
if user
userData = {}
else:
reg['registered'] = True
if self.form_instructions:
reg['instructions'] = self.form_instructions
for field in self.form_fields:
data = userData.get(field, '')
if data:
# Add field with existing data
reg[field] = data
else:
# Add a blank field
reg.addField(field)
iq.reply().setPayload(reg.xml)
iq.send()
def _sendError(self, iq, code, error_type, name, text=''):
iq.reply().setPayload(iq['register'].xml)
iq.error()
iq['error']['code'] = code
iq['error']['type'] = error_type
iq['error']['condition'] = name
iq['error']['text'] = text
iq.send()
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