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#!/usr/bin/env python3
# Slixmpp: The Slick XMPP Library
# Copyright (C) 2010 Nathanael C. Fritz
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
import logging
from getpass import getpass
from argparse import ArgumentParser
import asyncio
import slixmpp
from slixmpp.exceptions import IqError, IqTimeout
class Disco(slixmpp.ClientXMPP):
"""
A demonstration for using basic service discovery.
Send a disco#info and disco#items request to a JID/node combination,
and print out the results.
May also request only particular info categories such as just features,
or just items.
"""
def __init__(self, jid, password, target_jid, target_node='', get=''):
slixmpp.ClientXMPP.__init__(self, jid, password)
# Using service discovery requires the XEP-0030 plugin.
self.register_plugin('xep_0030')
self.get = get
self.target_jid = target_jid
self.target_node = target_node
# Values to control which disco entities are reported
self.info_types = ['', 'all', 'info', 'identities', 'features']
self.identity_types = ['', 'all', 'info', 'identities']
self.feature_types = ['', 'all', 'info', 'features']
self.items_types = ['', 'all', 'items']
# 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 initialize
# our roster.
self.add_event_handler("session_start", self.start)
async def start(self, event):
"""
Process the session_start event.
Typical actions for the session_start event are
requesting the roster and broadcasting an initial
presence stanza.
In this case, we send disco#info and disco#items
stanzas to the requested JID and print the results.
Arguments:
event -- An empty dictionary. The session_start
event does not provide any additional
data.
"""
await self.get_roster()
self.send_presence()
try:
if self.get in self.info_types:
# function using the callback parameter.
info = await self['xep_0030'].get_info(jid=self.target_jid,
node=self.target_node)
if self.get in self.items_types:
# The same applies from above. Listen for the
# disco_items event or pass a callback function
# if you need to process a non-blocking request.
items = await self['xep_0030'].get_items(jid=self.target_jid,
node=self.target_node)
if self.get not in self.info_types and self.get not in self.items_types:
logging.error("Invalid disco request type.")
return
except IqError as e:
logging.error("Entity returned an error: %s" % e.iq['error']['condition'])
except IqTimeout:
logging.error("No response received.")
else:
header = 'XMPP Service Discovery: %s' % self.target_jid
print(header)
print('-' * len(header))
if self.target_node != '':
print('Node: %s' % self.target_node)
print('-' * len(header))
if self.get in self.identity_types:
print('Identities:')
for identity in info['disco_info']['identities']:
print(' - %s' % str(identity))
if self.get in self.feature_types:
print('Features:')
for feature in info['disco_info']['features']:
print(' - %s' % feature)
if self.get in self.items_types:
print('Items:')
for item in items['disco_items']['items']:
print(' - %s' % str(item))
finally:
self.disconnect()
if __name__ == '__main__':
# Setup the command line arguments.
parser = ArgumentParser(description=Disco.__doc__)
parser.add_argument("-q","--quiet", help="set logging to ERROR",
action="store_const",
dest="loglevel",
const=logging.ERROR,
default=logging.ERROR)
parser.add_argument("-d","--debug", help="set logging to DEBUG",
action="store_const",
dest="loglevel",
const=logging.DEBUG,
default=logging.ERROR)
# JID and password options.
parser.add_argument("-j", "--jid", dest="jid",
help="JID to use")
parser.add_argument("-p", "--password", dest="password",
help="password to use")
parser.add_argument("query", choices=["all", "info", "items", "identities", "features"])
parser.add_argument("target_jid")
parser.add_argument("node", nargs='?')
args = parser.parse_args()
# Setup logging.
logging.basicConfig(level=args.loglevel,
format='%(levelname)-8s %(message)s')
if args.jid is None:
args.jid = input("Username: ")
if args.password is None:
args.password = getpass("Password: ")
# Setup the Disco browser.
xmpp = Disco(args.jid, args.password, args.target_jid, args.node, args.query)
# Connect to the XMPP server and start processing XMPP stanzas.
xmpp.connect()
asyncio.get_event_loop().run_until_complete(xmpp.disconnected)
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