mirror of
https://github.com/correl/SleekXMPP.git
synced 2024-12-25 11:11:20 +00:00
679 lines
25 KiB
ReStructuredText
679 lines
25 KiB
ReStructuredText
.. _create-plugin:
|
|
|
|
Creating a SleekXMPP Plugin
|
|
===========================
|
|
|
|
One of the goals of SleekXMPP is to provide support for every draft or final
|
|
XMPP extension (`XEP <http://xmpp.org/extensions/>`_). To do this, SleekXMPP has a
|
|
plugin mechanism for adding the functionalities required by each XEP. But even
|
|
though plugins were made to quickly implement and prototype the official XMPP
|
|
extensions, there is no reason you can't create your own plugin to implement
|
|
your own custom XMPP-based protocol.
|
|
|
|
This guide will help walk you through the steps to
|
|
implement a rudimentary version of `XEP-0077 In-band
|
|
Registration <http://xmpp.org/extensions/xep-0077.html>`_. In-band registration
|
|
was implemented in example 14-6 (page 223) of `XMPP: The Definitive
|
|
Guide <http://oreilly.com/catalog/9780596521271>`_ because there was no SleekXMPP
|
|
plugin for XEP-0077 at the time of writing. We will partially fix that issue
|
|
here by turning the example implementation from *XMPP: The Definitive Guide*
|
|
into a plugin. Again, note that this will not a complete implementation, and a
|
|
different, more robust, official plugin for XEP-0077 may be added to SleekXMPP
|
|
in the future.
|
|
|
|
.. note::
|
|
|
|
The example plugin created in this guide is for the server side of the
|
|
registration process only. It will **NOT** be able to register new accounts
|
|
on an XMPP server.
|
|
|
|
First Steps
|
|
-----------
|
|
Every plugin inherits from the class :mod:`base_plugin <sleekxmpp.plugins.base.base_plugin>`,
|
|
and must include a ``plugin_init`` method. While the
|
|
plugins distributed with SleekXMPP must be placed in the plugins directory
|
|
``sleekxmpp/plugins`` to be loaded, custom plugins may be loaded from any
|
|
module. To do so, use the following form when registering the plugin:
|
|
|
|
.. code-block:: python
|
|
|
|
self.register_plugin('myplugin', module=mod_containing_my_plugin)
|
|
|
|
The plugin name must be the same as the plugin's class name.
|
|
|
|
Now, we can open our favorite text editors and create ``xep_0077.py`` in
|
|
``SleekXMPP/sleekxmpp/plugins``. We want to do some basic house-keeping and
|
|
declare the name and description of the XEP we are implementing. If you
|
|
are creating your own custom plugin, you don't need to include the ``xep``
|
|
attribute.
|
|
|
|
.. code-block:: python
|
|
|
|
"""
|
|
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
|
|
|
|
class xep_0077(base_plugin):
|
|
"""
|
|
XEP-0077 In-Band Registration
|
|
"""
|
|
|
|
def plugin_init(self):
|
|
self.description = "In-Band Registration"
|
|
self.xep = "0077"
|
|
|
|
Now that we have a basic plugin, we need to edit
|
|
``sleekxmpp/plugins/__init__.py`` to include our new plugin by adding
|
|
``'xep_0077'`` to the ``__all__`` declaration.
|
|
|
|
Interacting with Other Plugins
|
|
------------------------------
|
|
|
|
In-band registration is a feature that should be advertised through `Service
|
|
Discovery <http://xmpp.org/extensions/xep-0030.html>`_. To do that, we tell the
|
|
``xep_0030`` plugin to add the ``"jabber:iq:register"`` feature. We put this
|
|
call in a method named ``post_init`` which will be called once the plugin has
|
|
been loaded; by doing so we advertise that we can do registrations only after we
|
|
finish activating the plugin.
|
|
|
|
The ``post_init`` method needs to call ``base_plugin.post_init(self)``
|
|
which will mark that ``post_init`` has been called for the plugin. Once the
|
|
SleekXMPP object begins processing, ``post_init`` will be called on any plugins
|
|
that have not already run ``post_init``. This allows you to register plugins and
|
|
their dependencies without needing to worry about the order in which you do so.
|
|
|
|
**Note:** by adding this call we have introduced a dependency on the XEP-0030
|
|
plugin. Be sure to register ``'xep_0030'`` as well as ``'xep_0077'``. SleekXMPP
|
|
does not automatically load plugin dependencies for you.
|
|
|
|
.. code-block:: python
|
|
|
|
def post_init(self):
|
|
base_plugin.post_init(self)
|
|
self.xmpp['xep_0030'].add_feature("jabber:iq:register")
|
|
|
|
Creating Custom Stanza Objects
|
|
------------------------------
|
|
|
|
Now, the IQ stanzas needed to implement our version of XEP-0077 are not very
|
|
complex, and we could just interact with the XML objects directly just like
|
|
in the *XMPP: The Definitive Guide* example. However, creating custom stanza
|
|
objects is good practice.
|
|
|
|
We will create a new ``Registration`` stanza. Following the *XMPP: The
|
|
Definitive Guide* example, we will add support for a username and password
|
|
field. We also need two flags: ``registered`` and ``remove``. The ``registered``
|
|
flag is sent when an already registered user attempts to register, along with
|
|
their registration data. The ``remove`` flag is a request to unregister a user's
|
|
account.
|
|
|
|
Adding additional `fields specified in
|
|
XEP-0077 <http://xmpp.org/extensions/xep-0077.html#registrar-formtypes-register>`_
|
|
will not be difficult and is left as an exercise for the reader.
|
|
|
|
Our ``Registration`` class needs to start with a few descriptions of its
|
|
behaviour:
|
|
|
|
* ``namespace``
|
|
The namespace our stanza object lives in. In this case,
|
|
``"jabber:iq:register"``.
|
|
|
|
* ``name``
|
|
The name of the root XML element. In this case, the ``query`` element.
|
|
|
|
* ``plugin_attrib``
|
|
The name to access this type of stanza. In particular, given a
|
|
registration stanza, the ``Registration`` object can be found using:
|
|
``iq_object['register']``.
|
|
|
|
* ``interfaces``
|
|
A list of dictionary-like keys that can be used with the stanza object.
|
|
When using ``"key"``, if there exists a method of the form ``getKey``,
|
|
``setKey``, or``delKey`` (depending on context) then the result of calling
|
|
that method will be returned. Otherwise, the value of the attribute ``key``
|
|
of the main stanza element is returned if one exists.
|
|
|
|
**Note:** The accessor methods currently use title case, and not camel case.
|
|
Thus if you need to access an item named ``"methodName"`` you will need to
|
|
use ``getMethodname``. This naming convention might change to full camel
|
|
case in a future version of SleekXMPP.
|
|
|
|
* ``sub_interfaces``
|
|
A subset of ``interfaces``, but these keys map to the text of any
|
|
subelements that are direct children of the main stanza element. Thus,
|
|
referencing ``iq_object['register']['username']`` will either execute
|
|
``getUsername`` or return the value in the ``username`` element of the
|
|
query.
|
|
|
|
If you need to access an element, say ``elem``, that is not a direct child
|
|
of the main stanza element, you will need to add ``getElem``, ``setElem``,
|
|
and ``delElem``. See the note above about naming conventions.
|
|
|
|
.. code-block:: python
|
|
|
|
from sleekxmpp.xmlstream import ElementBase, ET, JID, register_stanza_plugin
|
|
from sleekxmpp import Iq
|
|
|
|
class Registration(ElementBase):
|
|
namespace = 'jabber:iq:register'
|
|
name = 'query'
|
|
plugin_attrib = 'register'
|
|
interfaces = set(('username', 'password', 'registered', 'remove'))
|
|
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)
|
|
|
|
Setting a ``sub_interface`` attribute to ``""`` will remove that subelement.
|
|
Since we want to include empty registration fields in our form, we need the
|
|
``addField`` method to add the empty elements.
|
|
|
|
Since the ``registered`` and ``remove`` elements are just flags, we need to add
|
|
custom logic to enforce the binary behavior.
|
|
|
|
Extracting Stanzas from the XML Stream
|
|
--------------------------------------
|
|
|
|
Now that we have a custom stanza object, we need to be able to detect when we
|
|
receive one. To do this, we register a stream handler that will pattern match
|
|
stanzas off of the XML stream against our stanza object's element name and
|
|
namespace. To do so, we need to create a ``Callback`` object which contains
|
|
an XML fragment that can identify our stanza type. We can add this handler
|
|
registration to our ``plugin_init`` method.
|
|
|
|
Also, we need to associate our ``Registration`` class with IQ stanzas;
|
|
that requires the use of the ``register_stanza_plugin`` function (in
|
|
``sleekxmpp.xmlstream.stanzabase``) which takes the class of a parent stanza
|
|
type followed by the substanza type. In our case, the parent stanza is an IQ
|
|
stanza, and the substanza is our registration query.
|
|
|
|
The ``__handleRegistration`` method referenced in the callback will be our
|
|
handler function to process registration requests.
|
|
|
|
.. code-block:: python
|
|
|
|
def plugin_init(self):
|
|
self.description = "In-Band Registration"
|
|
self.xep = "0077"
|
|
|
|
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)
|
|
|
|
Handling Incoming Stanzas and Triggering Events
|
|
-----------------------------------------------
|
|
There are six situations that we need to handle to finish our implementation of
|
|
XEP-0077.
|
|
|
|
**Registration Form Request from a New User:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="result">
|
|
<query xmlns="jabber:iq:register">
|
|
<username />
|
|
<password />
|
|
</query>
|
|
</iq>
|
|
|
|
**Registration Form Request from an Existing User:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="result">
|
|
<query xmlns="jabber:iq:register">
|
|
<registered />
|
|
<username>Foo</username>
|
|
<password>hunter2</password>
|
|
</query>
|
|
</iq>
|
|
|
|
**Unregister Account:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="result">
|
|
<query xmlns="jabber:iq:register" />
|
|
</iq>
|
|
|
|
**Incomplete Registration:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="error">
|
|
<query xmlns="jabber:iq:register">
|
|
<username>Foo</username>
|
|
</query>
|
|
<error code="406" type="modify">
|
|
<not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" />
|
|
</error>
|
|
</iq>
|
|
|
|
**Conflicting Registrations:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="error">
|
|
<query xmlns="jabber:iq:register">
|
|
<username>Foo</username>
|
|
<password>hunter2</password>
|
|
</query>
|
|
<error code="409" type="cancel">
|
|
<conflict xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" />
|
|
</error>
|
|
</iq>
|
|
|
|
**Successful Registration:**
|
|
|
|
.. code-block:: xml
|
|
|
|
<iq type="result">
|
|
<query xmlns="jabber:iq:register" />
|
|
</iq>
|
|
|
|
Cases 1 and 2: Registration Requests
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
Responding to registration requests depends on if the requesting user already
|
|
has an account. If there is an account, the response should include the
|
|
``registered`` flag and the user's current registration information. Otherwise,
|
|
we just send the fields for our registration form.
|
|
|
|
We will handle both cases by creating a ``sendRegistrationForm`` method that
|
|
will create either an empty of full form depending on if we provide it with
|
|
user data. Since we need to know which form fields to include (especially if we
|
|
add support for the other fields specified in XEP-0077), we will also create a
|
|
method ``setForm`` which will take the names of the fields we wish to include.
|
|
|
|
.. code-block:: python
|
|
|
|
def plugin_init(self):
|
|
self.description = "In-Band Registration"
|
|
self.xep = "0077"
|
|
self.form_fields = ('username', 'password')
|
|
... remainder of plugin_init
|
|
|
|
...
|
|
|
|
def __handleRegistration(self, iq):
|
|
if iq['type'] == 'get':
|
|
# Registration form requested
|
|
userData = self.backend[iq['from'].bare]
|
|
self.sendRegistrationForm(iq, userData)
|
|
|
|
def setForm(self, *fields):
|
|
self.form_fields = fields
|
|
|
|
def sendRegistrationForm(self, iq, userData=None):
|
|
reg = iq['register']
|
|
if userData is None:
|
|
userData = {}
|
|
else:
|
|
reg['registered'] = True
|
|
|
|
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()
|
|
|
|
Note how we are able to access our ``Registration`` stanza object with
|
|
``iq['register']``.
|
|
|
|
A User Backend
|
|
++++++++++++++
|
|
You might have noticed the reference to ``self.backend``, which is an object
|
|
that abstracts away storing and retrieving user information. Since it is not
|
|
much more than a dictionary, we will leave the implementation details to the
|
|
final, full source code example.
|
|
|
|
Case 3: Unregister an Account
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
The next simplest case to consider is responding to a request to remove
|
|
an account. If we receive a ``remove`` flag, we instruct the backend to
|
|
remove the user's account. Since your application may need to know about
|
|
when users are registered or unregistered, we trigger an event using
|
|
``self.xmpp.event('unregister_user', iq)``. See the component examples below for
|
|
how to respond to that event.
|
|
|
|
.. code-block:: python
|
|
|
|
def __handleRegistration(self, iq):
|
|
if iq['type'] == 'get':
|
|
# Registration form requested
|
|
userData = self.backend[iq['from'].bare]
|
|
self.sendRegistrationForm(iq, userData)
|
|
elif iq['type'] == 'set':
|
|
# Remove an account
|
|
if iq['register']['remove']:
|
|
self.backend.unregister(iq['from'].bare)
|
|
self.xmpp.event('unregistered_user', iq)
|
|
iq.reply().send()
|
|
return
|
|
|
|
Case 4: Incomplete Registration
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
For the next case we need to check the user's registration to ensure it has all
|
|
of the fields we wanted. The simple option that we will use is to loop over the
|
|
field names and check each one; however, this means that all fields we send to
|
|
the user are required. Adding optional fields is left to the reader.
|
|
|
|
Since we have received an incomplete form, we need to send an error message back
|
|
to the user. We have to send a few different types of errors, so we will also
|
|
create a ``_sendError`` method that will add the appropriate ``error`` element
|
|
to the IQ reply.
|
|
|
|
.. code-block:: python
|
|
|
|
def __handleRegistration(self, iq):
|
|
if iq['type'] == 'get':
|
|
# Registration form requested
|
|
userData = self.backend[iq['from'].bare]
|
|
self.sendRegistrationForm(iq, userData)
|
|
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
|
|
|
|
...
|
|
|
|
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()
|
|
|
|
Cases 5 and 6: Conflicting and Successful Registration
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
We are down to the final decision on if we have a successful registration. We
|
|
send the user's data to the backend with the ``self.backend.register`` method.
|
|
If it returns ``True``, then registration has been successful. Otherwise,
|
|
there has been a conflict with usernames and registration has failed. Like
|
|
with unregistering an account, we trigger an event indicating that a user has
|
|
been registered by using ``self.xmpp.event('registered_user', iq)``. See the
|
|
component examples below for how to respond to this event.
|
|
|
|
.. code-block:: python
|
|
|
|
def __handleRegistration(self, iq):
|
|
if iq['type'] == 'get':
|
|
# Registration form requested
|
|
userData = self.backend[iq['from'].bare]
|
|
self.sendRegistrationForm(iq, userData)
|
|
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.")
|
|
|
|
Example Component Using the XEP-0077 Plugin
|
|
-------------------------------------------
|
|
Alright, the moment we've been working towards - actually using our plugin to
|
|
simplify our other applications. Here is a basic component that simply manages
|
|
user registrations and sends the user a welcoming message when they register,
|
|
and a farewell message when they delete their account.
|
|
|
|
Note that we have to register the ``'xep_0030'`` plugin first,
|
|
and that we specified the form fields we wish to use with
|
|
``self.xmpp.plugin['xep_0077'].setForm('username', 'password')``.
|
|
|
|
.. code-block:: python
|
|
|
|
import sleekxmpp.componentxmpp
|
|
|
|
class Example(sleekxmpp.componentxmpp.ComponentXMPP):
|
|
|
|
def __init__(self, jid, password):
|
|
sleekxmpp.componentxmpp.ComponentXMPP.__init__(self, jid, password, 'localhost', 8888)
|
|
|
|
self.registerPlugin('xep_0030')
|
|
self.registerPlugin('xep_0077')
|
|
self.plugin['xep_0077'].setForm('username', 'password')
|
|
|
|
self.add_event_handler("registered_user", self.reg)
|
|
self.add_event_handler("unregistered_user", self.unreg)
|
|
|
|
def reg(self, iq):
|
|
msg = "Welcome! %s" % iq['register']['username']
|
|
self.sendMessage(iq['from'], msg, mfrom=self.fulljid)
|
|
|
|
def unreg(self, iq):
|
|
msg = "Bye! %s" % iq['register']['username']
|
|
self.sendMessage(iq['from'], msg, mfrom=self.fulljid)
|
|
|
|
**Congratulations!** We now have a basic, functioning implementation of
|
|
XEP-0077.
|
|
|
|
Complete Source Code for XEP-0077 Plugin
|
|
----------------------------------------
|
|
Here is a copy of a more complete implementation of the plugin we created, but
|
|
with some additional registration fields implemented.
|
|
|
|
.. code-block:: python
|
|
|
|
"""
|
|
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, JID, register_stanza_plugin
|
|
from sleekxmpp import Iq
|
|
import copy
|
|
|
|
|
|
class Registration(ElementBase):
|
|
namespace = 'jabber:iq:register'
|
|
name = 'query'
|
|
plugin_attrib = 'register'
|
|
interfaces = set(('username', 'password', 'email', 'nick', 'name',
|
|
'first', 'last', 'address', 'city', 'state', 'zip',
|
|
'phone', 'url', 'date', 'misc', 'text', 'key',
|
|
'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 = ('username', 'password')
|
|
self.form_instructions = ""
|
|
self.backend = UserStore()
|
|
|
|
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
|
|
userData = self.backend[iq['from'].bare]
|
|
self.sendRegistrationForm(iq, userData)
|
|
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, userData=None):
|
|
reg = iq['register']
|
|
if userData is None:
|
|
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()
|