SleekXMPP/examples/adhoc_user.py
Lance Stout c26b716164 Update XEP-0050 to use new IQ exceptions.
IqError is now caught and forwarded to the command error handler referenced
in the session.

Errors are now caught and processed by the session's error handler
whether or not the results Iq stanza includes the <command> substanza.

Added the option for blocking command calls. The blocking option is set
during start_command with block=True. Subsequent command flow methods use
session['block'] to determine their blocking behaviour.

If you use blocking commands, then you will need to wrap your command calls
in a try/except block for IqTimeout exceptions.
2011-08-13 00:10:06 -07:00

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Python
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2010 Nathanael C. Fritz
This file is part of SleekXMPP.
See the file LICENSE for copying permission.
"""
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 CommandUserBot(sleekxmpp.ClientXMPP):
"""
A simple SleekXMPP bot that uses the adhoc command
provided by the adhoc_provider.py example.
"""
def __init__(self, jid, password, other, greeting):
sleekxmpp.ClientXMPP.__init__(self, jid, password)
self.command_provider = other
self.greeting = greeting
# 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)
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()
# We first create a session dictionary containing:
# 'next' -- the handler to execute on a successful response
# 'error' -- the handler to execute if an error occurs
# The session may also contain custom data.
session = {'greeting': self.greeting,
'next': self._command_start,
'error': self._command_error}
self['xep_0050'].start_command(jid=self.command_provider,
node='greeting',
session=session)
def message(self, msg):
"""
Process incoming message stanzas.
Arguments:
msg -- The received message stanza.
"""
logging.info(msg['body'])
def _command_start(self, iq, session):
"""
Process the initial command result.
Arguments:
iq -- The iq stanza containing the command result.
session -- A dictionary of data relevant to the command
session. Additional, custom data may be saved
here to persist across handler callbacks.
"""
# The greeting command provides a form with a single field:
# <x xmlns="jabber:x:data" type="form">
# <field var="greeting"
# type="text-single"
# label="Your greeting" />
# </x>
form = self['xep_0004'].makeForm(ftype='submit')
form.addField(var='greeting',
value=session['greeting'])
session['payload'] = form
# We don't need to process the next result.
session['next'] = None
# Other options include using:
# continue_command() -- Continue to the next step in the workflow
# cancel_command() -- Stop command execution.
self['xep_0050'].complete_command(session)
def _command_error(self, iq, session):
"""
Process an error that occurs during command execution.
Arguments:
iq -- The iq stanza containing the error.
session -- A dictionary of data relevant to the command
session. Additional, custom data may be saved
here to persist across handler callbacks.
"""
logging.error("COMMAND: %s %s" % (iq['error']['condition'],
iq['error']['text']))
# Terminate the command's execution and clear its session.
# The session will automatically be cleared if no error
# handler is provided.
self['xep_0050'].terminate_command(session)
self.disconnect()
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")
optp.add_option("-o", "--other", dest="other",
help="JID providing commands")
optp.add_option("-g", "--greeting", dest="greeting",
help="Greeting")
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: ")
if opts.other is None:
opts.other = raw_input("JID Providing Commands: ")
if opts.greeting is None:
opts.greeting = raw_input("Greeting: ")
# Setup the CommandBot and register plugins. Note that while plugins may
# have interdependencies, the order in which you register them does
# not matter.
xmpp = CommandUserBot(opts.jid, opts.password, opts.other, opts.greeting)
xmpp.register_plugin('xep_0030') # Service Discovery
xmpp.register_plugin('xep_0004') # Data Forms
xmpp.register_plugin('xep_0050') # Adhoc Commands
# 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.")