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Finished the echo bot quickstart.

Added placeholders for other guides we need.
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Lance Stout 2011-08-13 20:58:53 -07:00
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LICENSE
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@ -21,8 +21,8 @@ THE SOFTWARE.
Licenses of Bundled Third Pary Code
-----------------------------------
Licenses of Bundled Third Party Code
------------------------------------
dateutil - Extensions to the standard python 2.3+ datetime module.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Create and Run a Server Component
=================================

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===============================
SleekXMPP Quickstart - Echo Bot
===============================
.. note::
If you have any issues working through this quickstart guide
or the other tutorials here, please either send a message to the
`mailing list <http://groups.google.com/group/sleekxmpp-discussion>`_
or join the chat room at `sleek@conference.jabber.org
<xmpp:sleek@conference.jabber.org?join>`_.
If you have not yet installed SleekXMPP, do so now by either checking out a version
from `Github <http://github.com/fritzy/SleekXMPP>`_, or installing it using ``pip``
or ``easy_install``.
.. code-block:: sh
pip install sleekxmpp # Or: easy_install sleekxmpp
As a basic starting project, we will create an echo bot which will reply to any
messages sent to it. We will also go through adding some basic command line configuration
for enabling or disabling debug log outputs and setting the username and password
for the bot.
For the command line options processing, we will use the built-in ``optparse``
module and the ``getpass`` module for reading in passwords.
TL;DR Just Give Me the Code
---------------------------
As you wish: :ref:`the completed example <echobot_complete>`.
Overview
--------
To get started, here is a brief outline of the structure that the final project will have:
.. code-block:: python
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import logging
import getpass
from optparse import OptionParser
import sleekxmpp
'''Here we will create out echo bot class'''
if __name__ == '__main__':
'''Here we will configure and read command line options'''
'''Here we will instantiate our echo bot'''
'''Finally, we connect the bot and start listening for messages'''
Default Encoding
----------------
XMPP requires support for UTF-8 and so SleekXMPP must use UTF-8 as well. In
Python3 this is simple because Unicode is the default string type. For Python2.6+
the situation is not as easy because standard strings are simply byte arrays and
use ASCII. We can get Python to use UTF-8 as the default encoding by including:
.. code-block:: python
if sys.version_info < (3, 0):
reload(sys)
sys.setdefaultencoding('utf8')
.. warning::
Until we are able to ensure that SleekXMPP will always use Unicode in Python2.6+, this
may cause issues embedding SleekXMPP into other applications which assume ASCII encoding.
Creating the EchoBot Class
--------------------------
There are three main types of entities within XMPP — servers, components, and
clients. Since our echo bot will only be responding to a few people, and won't need
to remember thousands of users, we will use a client connection. A client connection
is the same type that you use with your standard IM client such as Pidgin or Psi.
SleekXMPP comes with a :class:`ClientXMPP <sleekxmpp.clientxmpp.ClientXMPP>` class
which we can extend to add our message echoing feature. :class:`ClientXMPP <sleekxmpp.clientxmpp.ClientXMPP>`
requires the parameters ``jid`` and ``password``, so we will let our ``EchoBot`` class accept those
as well.
.. code-block:: python
class EchoBot(sleekxmpp.ClientXMPP):
def __init__(self, jid, password):
super(EchoBot, self).__init__(jid, password)
Handling Session Start
~~~~~~~~~~~~~~~~~~~~~~
The XMPP spec requires clients to broadcast its presence and retrieve its roster (buddy list) once
it connects and establishes a session with the XMPP server. Until these two tasks are completed,
some servers may not deliver or send messages or presence notifications to the client. So we now
need to be sure that we retrieve our roster and send an initial presence once the session has
started. To do that, we will register an event handler for the :term:`session_start` event.
.. code-block:: python
def __init__(self, jid, password):
super(EchoBot, self).__init__(jid, password)
self.add_event_handler('session_start', self.start)
Since we want the method ``self.start`` to execute when the :term:`session_start` event is triggered,
we also need to define the ``self.start`` handler.
.. code-block:: python
def start(self, event):
self.send_presence()
self.get_roster()
.. warning::
Not sending an initial presence and retrieving the roster when using a client instance can
prevent your program from receiving presence notifications or messages depending on the
XMPP server you have chosen.
Our event handler, like every event handler, accepts a single parameter which typically is the stanza
that was received that caused the event. In this case, ``event`` will just be an empty dictionary since
there is no associated data.
Our first task of sending an initial presence is done using :meth:`send_presence <sleekxmpp.basexmpp.BaseXMPP.send_presence>`.
Calling :meth:`send_presence <sleekxmpp.basexmpp.BaseXMPP.send_presence>` without any arguments will send the simplest
stanza allowed in XMPP:
.. code-block:: xml
<presence />
The second requirement is fulfilled using :meth:`get_roster <sleekxmpp.clientxmpp.ClientXMPP.get_roster>`, which
will send an IQ stanza requesting the roster to the server and then wait for the response. You may be wondering
what :meth:`get_roster <sleekxmpp.clientxmpp.ClientXMPP.get_roster>` returns since we are not saving any return
value. The roster data is saved by an internal handler to ``self.roster``, and in the case of a :class:`ClientXMPP
<sleekxmpp.clientxmpp.ClientXMPP>` instance to ``self.client_roster``. (The difference between ``self.roster`` and
``self.client_roster`` is that ``self.roster`` supports storing roster information for multiple JIDs, which is useful
for components, whereas ``self.client_roster`` stores roster data for just the client's JID.)
It is possible for a timeout to occur while waiting for the server to respond, which can happen if the
network is excessively slow or the server is no longer responding. In that case, an :class:`IQTimeout
<sleekxmpp.exceptions.IQTimeout>` is raised. Similarly, an :class:`IQError <sleekxmpp.exceptions.IQError>` exception can
be raised if the request contained bad data or requested the roster for the wrong user. In either case, you can wrap the
``get_roster()`` call in a ``try``/``except`` block to retry the roster retrieval process.
The XMPP stanzas from the roster retrieval process could look like this:
.. code-block:: xml
<iq type="get">
<query xmlns="jabber:iq:roster" />
</iq>
<iq type="result" to="echobot@example.com" from="example.com">
<query xmlns="jabber:iq:roster">
<item jid="friend@example.com" subscription="both" />
</query>
</iq>
Responding to Messages
~~~~~~~~~~~~~~~~~~~~~~
Now that an ``EchoBot`` instance handles :term:`session_start`, we can begin receiving and
responding to messages. Now we can register a handler for the :term:`message` event that is raised
whenever a messsage is received.
.. code-block:: python
def __init__(self, jid, password):
super(EchoBot, self).__init__(jid, password)
self.add_event_handler('session_start', self.start)
self.add_event_handler('message', self.message)
The :term:`message` event is fired whenever a ``<message />`` stanza is received, including for
group chat messages, errors, etc. Properly responding to messages thus requires checking the
``'type'`` interface of the message :term:`stanza object`. For responding to only messages
addressed to our bot (and not from a chat room), we check that the type is either ``normal``
or ``chat``. (Other potential types are ``error``, ``headline``, and ``groupchat``.)
.. code-block:: python
def message(self, msg):
if msg['type'] in ('normal', 'chat'):
msg.reply("Thanks for sending:\n%s" % msg['body']).send()
Let's take a closer look at the ``.reply()`` method used above. For message stanzas,
``.reply()`` accepts the parameter ``body`` (also as the first positional argument),
which is then used as the value of the ``<body />`` element of the message.
Setting the appropriate ``to`` JID is also handled by ``.reply()``.
Another way to have sent the reply message would be to use :meth:`send_message <sleekxmpp.basexmpp.BaseXMPP.send_message>`,
which is a convenience method for generating and sending a message based on the values passed to it. If we were to use
this method, the above code would look as so:
.. code-block:: python
def message(self, msg):
if msg['type'] in ('normal', 'chat'):
self.send_message(mto=msg['from'],
mbody='Thanks for sending:\n%s' % msg['body'])
Whichever method you choose to use, the results in action will look like this:
.. code-block:: xml
<message to="echobot@example.com" from="someuser@example.net" type="chat">
<body>Hej!</body>
</message>
<message to="someuser@example.net" type="chat">
<body>Thanks for sending:
Hej!</body>
</message>
.. note::
XMPP does not require stanzas sent by a client to include a ``from`` attribute, and
leaves that responsibility to the XMPP server. However, if a sent stanza does
include a ``from`` attribute, it must match the full JID of the client or some
servers will reject it. SleekXMPP thus leaves out the ``from`` attribute when replying
using a client connection.
Command Line Arguments and Logging
----------------------------------
While this isn't part of SleekXMPP itself, we do want our echo bot program to be able
to accept a JID and password from the command line instead of hard coding them. We will
use the ``optparse`` module for this, though there are several alternative methods, including
the newer ``argparse`` module.
We want to accept three parameters: the JID for the echo bot, its password, and a flag for
displaying the debugging logs. We also want these to be optional parameters, since passing
a password directly through the command line can be a security risk.
.. code-block:: python
if __name__ == '__main__':
optp = OptionParser()
optp.add_option('-d', '--debug', help='set logging to DEBUG',
action='store_const', dest='loglevel',
const=logging.DEBUG, default=logging.INFO)
optp.add_option("-j", "--jid", dest="jid",
help="JID to use")
optp.add_option("-p", "--password", dest="password",
help="password to use")
opts, args = optp.parse_args()
if opts.jid is None:
opts.jid = raw_input("Username: ")
if opts.password is None:
opts.password = getpass.getpass("Password: ")
Since we included a flag for enabling debugging logs, we need to configure the
``logging`` module to behave accordingly.
.. code-block:: python
if __name__ == '__main__':
# .. option parsing from above ..
logging.basicConfig(level=opts.loglevel,
format='%(levelname)-8s %(message)s')
Connecting to the Server and Processing
---------------------------------------
There are three steps remaining until our echo bot is complete:
1. We need to instantiate the bot.
2. The bot needs to connect to an XMPP server.
3. We have to instruct the bot to start running and processing messages.
Creating the bot is straightforward, but we can also perform some configuration
at this stage. For example, let's say we want our bot to support `service discovery
<http://xmpp.org/extensions/xep-0030.html>`_ and `pings <http://xmpp.org/extensions/xep-0199.html>`_:
.. code-block:: python
if __name__ == '__main__':
# .. option parsing and logging steps from above
xmpp = EchoBot(opts.jid, opts.password)
xmpp.register_plugin('xep_0030') # Service Discovery
xmpp.register_plugin('xep_0199') # Ping
If the ``EchoBot`` class had a hard dependency on a plugin, we could register that plugin in
the ``EchoBot.__init__`` method instead.
.. note::
If you are using the OpenFire server, you will need to include an additional
configuration step. OpenFire supports a different version of SSL than what
most servers and SleekXMPP support.
.. code-block:: python
import ssl
xmpp.ssl_version = ssl.PROTOCOL_SSLv3
Now we're ready to connect and begin echoing messages. If you have the package
``dnspython`` installed, then the :meth:`sleekxmpp.clientxmpp.ClientXMPP` method
will perform a DNS query to find the appropriate server to connect to for the
given JID. If you do not have ``dnspython``, then SleekXMPP will attempt to
connect to the hostname used by the JID, unless an address tuple is supplied
to :meth:`sleekxmpp.clientxmpp.ClientXMPP`.
.. code-block:: python
if __name__ == '__main__':
# .. option parsing & echo bot configuration
if xmpp.connect():
xmpp.process(block=True)
else:
print('Unable to connect')
.. note::
For Google Talk users withouth ``dnspython`` installed, the above code
should look like:
.. code-block:: python
if __name__ == '__main__':
# .. option parsing & echo bot configuration
if xmpp.connect(('talk.google.com', 5222)):
xmpp.process(block=True)
else:
print('Unable to connect')
To begin responding to messages, you'll see we called :meth:`sleekxmpp.basexmpp.BaseXMPP.process`
which will start the event handling, send queue, and XML reader threads. It will also call
the :meth:`sleekxmpp.plugins.base.base_plugin.post_init` method on all registered plugins. By
passing ``block=True`` to :meth:`sleekxmpp.basexmpp.BaseXMPP.process` we are running the
main processing loop in the main thread of execution. The :meth:`sleekxmpp.basexmpp.BaseXMPP.process`
call will not return until after SleekXMPP disconnects. If you need to run the client in the background
for another program, use ``block=False`` to spawn the processing loop in its own thread.
.. note::
Before 1.0, controlling the blocking behaviour of :meth:`sleekxmpp.basexmpp.BaseXMPP.process` was
done via the ``threaded`` argument. This arrangement was a source of confusion because some users
interpreted that as controlling whether or not SleekXMPP used threads at all, instead of how
the processing loop itself was spawned.
The statements ``xmpp.process(threaded=False)`` and ``xmpp.process(block=True)`` are equivalent.
.. _echobot_complete:
The Final Product
-----------------
Here then is what the final result should look like after working through the guide above. The code
can also be found in the SleekXMPP `examples directory <http://github.com/fritzy/SleekXMPP/tree/master/examples>`_.
.. compound::
You can run the code using:
.. code-block:: sh
python echobot.py -d -j echobot@example.com
which will prompt for the password and then begin echoing messages. To test, open
your regular IM client and start a chat with the echo bot. Messages you send to it should
be mirrored back to you. Be careful if you are using the same JID for the echo bot that
you also have logged in with another IM client. Messages could be routed to your IM client instead
of the bot.
.. include:: ../../examples/echo_client.py
:literal:
..
.. #!/usr/bin/env python
.. # -*- coding: utf-8 -*-
.. import sys
.. import logging
.. import time
.. import getpass
.. from optparse import OptionParser
..
.. import sleekxmpp
..
..
.. class EchoBot(sleekxmpp.ClientXMPP):
..
.. """
.. A simple SleekXMPP bot that will echo messages it
.. receives, along with a short thank you message.
.. """
..
.. def __init__(self, jid, password):
.. sleekxmpp.ClientXMPP.__init__(self, jid, password)
..
.. # The session_start event will be triggered when
.. # the bot establishes its connection with the server
.. # and the XML streams are ready for use. We want to
.. # listen for this event so that we we can intialize
.. # our roster.
.. self.add_event_handler("session_start", self.start)
..
.. # The message event is triggered whenever a message
.. # stanza is received. Be aware that that includes
.. # MUC messages and error messages.
.. self.add_event_handler("message", self.message)
..
.. def start(self, event):
.. """
.. Process the session_start event.
..
.. Typical actions for the session_start event are
.. requesting the roster and broadcasting an intial
.. presence stanza.
..
.. Arguments:
.. event -- An empty dictionary. The session_start
.. event does not provide any additional
.. data.
.. """
.. self.send_presence()
.. self.get_roster()
..
.. def message(self, msg):
.. """
.. Process incoming message stanzas. Be aware that this also
.. includes MUC messages and error messages. It is usually
.. a good idea to check the messages's type before processing
.. or sending replies.
..
.. Arguments:
.. msg -- The received message stanza. See the documentation
.. for stanza objects and the Message stanza to see
.. how it may be used.
.. """
.. if msg['type'] in ('normal', 'chat'):
.. msg.reply("Thanks for sending\n%(body)s" % msg).send()
..
..
.. if __name__ == '__main__':
.. # Setup the command line arguments.
.. optp = OptionParser()
..
.. # Output verbosity options.
.. optp.add_option('-q', '--quiet', help='set logging to ERROR',
.. action='store_const', dest='loglevel',
.. const=logging.ERROR, default=logging.INFO)
.. optp.add_option('-d', '--debug', help='set logging to DEBUG',
.. action='store_const', dest='loglevel',
.. const=logging.DEBUG, default=logging.INFO)
.. optp.add_option('-v', '--verbose', help='set logging to COMM',
.. action='store_const', dest='loglevel',
.. const=5, default=logging.INFO)
..
.. # JID and password options.
.. optp.add_option("-j", "--jid", dest="jid",
.. help="JID to use")
.. optp.add_option("-p", "--password", dest="password",
.. help="password to use")
..
.. opts, args = optp.parse_args()
..
.. # Setup logging.
.. logging.basicConfig(level=opts.loglevel,
.. format='%(levelname)-8s %(message)s')
..
.. if opts.jid is None:
.. opts.jid = raw_input("Username: ")
.. if opts.password is None:
.. opts.password = getpass.getpass("Password: ")
..
.. # Setup the EchoBot and register plugins. Note that while plugins may
.. # have interdependencies, the order in which you register them does
.. # not matter.
.. xmpp = EchoBot(opts.jid, opts.password)
.. xmpp.register_plugin('xep_0030') # Service Discovery
.. xmpp.register_plugin('xep_0199') # XMPP Ping
..
.. # If you are working with an OpenFire server, you may need
.. # to adjust the SSL version used:
.. # xmpp.ssl_version = ssl.PROTOCOL_SSLv3
..
.. # Connect to the XMPP server and start processing XMPP stanzas.
.. if xmpp.connect():
.. # If you do not have the pydns library installed, you will need
.. # to manually specify the name of the server if it does not match
.. # the one in the JID. For example, to use Google Talk you would
.. # need to use:
.. #
.. # if xmpp.connect(('talk.google.com', 5222)):
.. # ...
.. xmpp.process(threaded=False)
.. print("Done")
.. else:
.. print("Unable to connect.")

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Send/Receive IQ Stanzas
=======================

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Mulit-User Chat (MUC) Bot
=========================

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Manage Presence Subscriptions
=============================

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Enable HTTP Proxy Support
=========================

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Send a Message Every 5 Minutes
==============================

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Login, Send a Message, and Disconnect
=====================================
A common use case for SleekXMPP is to send one-off messages from
time to time.

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Using Stream Handlers and Matchers
==================================

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@ -22,14 +22,13 @@ SleekXMPP
**Develop Releases**
- `Latest Develop Version <http://github.com/fritzy/SleekXMPP/zipball/develop>`_
- `External Roster (Based on Develop Version) <http://github.com/fritzy/SleekXMPP/zipball/roster>`_
A mailing list and XMPP chat room are available for discussing and getting
help with SleekXMPP.
**Mailing List**
http://groups.google.com/group/sleekxmpp-discussion
`SleekXMPP Discussion on Google Groups <http://groups.google.com/group/sleekxmpp-discussion>`_
**Chat**
`sleek@conference.jabber.org <xmpp:sleek@conference.jabber.org?join>`_
@ -65,6 +64,39 @@ SleekXMPP's design goals and philosphy are:
sensible defaults and appropriate abstractions. XML can be ugly to work
with, but it doesn't have to be that way.
Getting Started (with Examples)
-------------------------------
.. toctree::
:maxdepth: 2
getting_started/echobot
getting_started/sendlogout
getting_started/component
getting_started/presence
getting_started/muc
getting_started/proxy
getting_started/scheduler
getting_started/iq
Tutorials, FAQs, and How To Guides
----------------------------------
.. toctree::
:maxdepth: 2
xeps
xmpp_tdg
create_plugin
sasl
handlersmatchers
Plugin Guides
~~~~~~~~~~~~~
.. toctree::
:maxdepth: 2
guide_xep_0030
SleekXMPP Architecture and Design
---------------------------------
.. toctree::
@ -72,17 +104,6 @@ SleekXMPP Architecture and Design
architecture.rst
Tutorials, FAQs, and How To Guides
----------------------------------
.. toctree::
:maxdepth: 2
quickstart
xmpp_tdg
create_plugin
guide_xep_0030
API Reference
-------------
.. toctree::

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====================
SleekXMPP Quickstart
====================
.. note::
If you have any issues working through this quickstart guide
or the other tutorials here, please either send a message to the
`mailing list <http://groups.google.com/group/sleekxmpp-discussion>`_
or join the chat room at `sleek@conference.jabber.org
<xmpp:sleek@conference.jabber.org?join>`_.
If you have not yet installed SleekXMPP, do so now by either checking out a version
from `Github <http://github.com/fritzy/SleekXMPP>`_, or installing it using ``pip``
or ``easy_install``.
.. code-block:: sh
pip install sleekxmpp # Or: easy_install sleekxmpp
As a basic starting project, we will create an echo bot which will reply to any
messages sent to it. We also go through adding some basic command line configuration
for enabling or disabling debug log outputs and setting the username and password
for the bot.
For the command line options processing, we will use the built-in ``optparse``
module and the ``getpass`` module for reading in passwords.
TL;DR Just Give me the Boilerplate
----------------------------------
As you wish: :ref:`the completed example <echobot_complete>`.
Overview
--------
To get started, here is a brief outline of the structure that the final project will have:
.. code-block:: python
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import logging
import getpass
from optparse import OptionParser
import sleekxmpp
'''Here we will create out echo bot class'''
if __name__ == '__main__':
'''Here we will configure and read command line options'''
'''Here we will instantiate our echo bot'''
'''Finally, we connect the bot and start listening for messages'''
Creating the EchoBot Class
--------------------------
There are three main types of entities within XMPP — servers, components, and
clients. Since our echo bot will only be responding to a few people, and won't need
to remember thousands of users, we will use a client connection. A client connection
is the same type that you use with your standard IM client such as Pidgin or Psi.
SleekXMPP comes with a :class:`ClientXMPP <sleekxmpp.clientxmpp.ClientXMPP>` class
which we can extend to add our message echoing feature. :class:`ClientXMPP <sleekxmpp.clientxmpp.ClientXMPP>`
requires the parameters ``jid`` and ``password``, so we will let our ``EchoBot`` class accept those
as well.
.. code-block:: python
class EchoBot(sleekxmpp.ClientXMPP):
def __init__(self, jid, password):
super(EchoBot, self).__init__(jid, password)
Handling Session Start
~~~~~~~~~~~~~~~~~~~~~~
The XMPP spec requires clients to broadcast its presence and retrieve its roster (buddy list) once
it connects and establishes a session with the XMPP server. Until these two tasks are completed,
some servers may not deliver or send messages or presence notifications to the client. So we now
need to be sure that we retrieve our roster and send an initial presence once the session has
started. To do that, we will register an event handler for the :term:`session_start` event.
.. code-block:: python
def __init__(self, jid, password):
super(EchoBot, self).__init__(jid, password)
self.add_event_handler('session_start', self.start)
Since we want the method ``self.start`` to execute when the :term:`session_start` event is triggered,
we also need to define the ``self.start`` handler.
.. code-block:: python
def start(self, event):
self.send_presence()
self.get_roster()
.. warning::
Not sending an initial presence and retrieving the roster when using a client instance can
prevent your program from receiving presence notifications or messages depending on the
XMPP server you have chosen.
Our event handler, like every event handler, accepts a single parameter which typically is the stanza
that was received that caused the event. In this case, ``event`` will just be an empty dictionary since
there is no associated data.
Our first task of sending an initial presence is done using :meth:`send_presence <sleekxmpp.basexmpp.BaseXMPP.send_presence>`.
Calling :meth:`send_presence <sleekxmpp.basexmpp.BaseXMPP.send_presence>` without any arguments will send the simplest
stanza allowed in XMPP:
.. code-block:: xml
<presence />
The second requirement is fulfilled using :meth:`get_roster <sleekxmpp.clientxmpp.ClientXMPP.get_roster>`, which
will send an IQ stanza requesting the roster to the server and then wait for the response. You may be wondering
what :meth:`get_roster <sleekxmpp.clientxmpp.ClientXMPP.get_roster>` returns since we are not saving any return
value. The roster data is saved by an internal handler to ``self.roster``, and in the case of a :class:`ClientXMPP
<sleekxmpp.clientxmpp.ClientXMPP>` instance to ``self.client_roster``. (The difference between ``self.roster`` and
``self.client_roster`` is that ``self.roster`` supports storing roster information for multiple JIDs, which is useful
for components, whereas ``self.client_roster`` stores roster data for just the client's JID.)
It is possible for a timeout to occur while waiting for the server to respond, which can happen if the
network is excessively slow or the server is no longer responding. In that case, an :class:`IQTimeout
<sleekxmpp.exceptions.IQTimeout>` is raised. Similarly, an :class:`IQError <sleekxmpp.exceptions.IQError>` exception can
be raised if the request contained bad data or requested the roster for the wrong user. In either case, you can wrap the
``get_roster()`` call in a ``try``/``except`` block to retry the roster retrieval process.
The XMPP stanzas from the roster retrieval process could look like this:
.. code-block:: xml
<iq type="get">
<query xmlns="jabber:iq:roster" />
</iq>
<iq type="result" to="echobot@example.com" from="example.com">
<query xmlns="jabber:iq:roster">
<item jid="friend@example.com" subscription="both" />
</query>
</iq>
Responding to Messages
~~~~~~~~~~~~~~~~~~~~~~
Now that an ``EchoBot`` instance handles :term:`session_start`, we can begin receiving and responding
to messages. The :term:`message` event is fired whenever a ``<message />`` stanza is received, including
for group chat messages, errors, etc. Properly responding to messages thus requires checking the ``'type'``
interface of the message :term:`stanza object`.
.. _echobot_complete:
The Final Product
-----------------
Here then is the final result you should have after working through the guide above.
.. code-block:: python
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import logging
import time
import getpass
from optparse import OptionParser
import sleekxmpp
# Python versions before 3.0 do not use UTF-8 encoding
# by default. To ensure that Unicode is handled properly
# throughout SleekXMPP, we will set the default encoding
# ourselves to UTF-8.
if sys.version_info < (3, 0):
reload(sys)
sys.setdefaultencoding('utf8')
class EchoBot(sleekxmpp.ClientXMPP):
"""
A simple SleekXMPP bot that will echo messages it
receives, along with a short thank you message.
"""
def __init__(self, jid, password):
sleekxmpp.ClientXMPP.__init__(self, jid, password)
# The session_start event will be triggered when
# the bot establishes its connection with the server
# and the XML streams are ready for use. We want to
# listen for this event so that we we can intialize
# our roster.
self.add_event_handler("session_start", self.start)
# The message event is triggered whenever a message
# stanza is received. Be aware that that includes
# MUC messages and error messages.
self.add_event_handler("message", self.message)
def start(self, event):
"""
Process the session_start event.
Typical actions for the session_start event are
requesting the roster and broadcasting an intial
presence stanza.
Arguments:
event -- An empty dictionary. The session_start
event does not provide any additional
data.
"""
self.send_presence()
self.get_roster()
def message(self, msg):
"""
Process incoming message stanzas. Be aware that this also
includes MUC messages and error messages. It is usually
a good idea to check the messages's type before processing
or sending replies.
Arguments:
msg -- The received message stanza. See the documentation
for stanza objects and the Message stanza to see
how it may be used.
"""
msg.reply("Thanks for sending\n%(body)s" % msg).send()
if __name__ == '__main__':
# Setup the command line arguments.
optp = OptionParser()
# Output verbosity options.
optp.add_option('-q', '--quiet', help='set logging to ERROR',
action='store_const', dest='loglevel',
const=logging.ERROR, default=logging.INFO)
optp.add_option('-d', '--debug', help='set logging to DEBUG',
action='store_const', dest='loglevel',
const=logging.DEBUG, default=logging.INFO)
optp.add_option('-v', '--verbose', help='set logging to COMM',
action='store_const', dest='loglevel',
const=5, default=logging.INFO)
# JID and password options.
optp.add_option("-j", "--jid", dest="jid",
help="JID to use")
optp.add_option("-p", "--password", dest="password",
help="password to use")
opts, args = optp.parse_args()
# Setup logging.
logging.basicConfig(level=opts.loglevel,
format='%(levelname)-8s %(message)s')
if opts.jid is None:
opts.jid = raw_input("Username: ")
if opts.password is None:
opts.password = getpass.getpass("Password: ")
# Setup the EchoBot and register plugins. Note that while plugins may
# have interdependencies, the order in which you register them does
# not matter.
xmpp = EchoBot(opts.jid, opts.password)
xmpp.register_plugin('xep_0030') # Service Discovery
xmpp.register_plugin('xep_0004') # Data Forms
xmpp.register_plugin('xep_0060') # PubSub
xmpp.register_plugin('xep_0199') # XMPP Ping
# If you are working with an OpenFire server, you may need
# to adjust the SSL version used:
# xmpp.ssl_version = ssl.PROTOCOL_SSLv3
# If you want to verify the SSL certificates offered by a server:
# xmpp.ca_certs = "path/to/ca/cert"
# Connect to the XMPP server and start processing XMPP stanzas.
if xmpp.connect():
# If you do not have the pydns library installed, you will need
# to manually specify the name of the server if it does not match
# the one in the JID. For example, to use Google Talk you would
# need to use:
#
# if xmpp.connect(('talk.google.com', 5222)):
# ...
xmpp.process(threaded=False)
print("Done")
else:
print("Unable to connect.")

2
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@ -0,0 +1,2 @@
How SASL Authentication Works
=============================

2
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Supported XEPS
==============

3
examples/echo_client.py
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@ -76,7 +76,8 @@ class EchoBot(sleekxmpp.ClientXMPP):
for stanza objects and the Message stanza to see
how it may be used.
"""
msg.reply("Thanks for sending\n%(body)s" % msg).send()
if msg['type'] in ('chat', 'normal'):
msg.reply("Thanks for sending\n%(body)s" % msg).send()
if __name__ == '__main__':