Add pubsub examples.

Run pubsub commands via pubsub_client, and watch events as they come in
with pubsub_events.

1 files changed, 151 insertions, 0 deletions

diff --git a/examples/pubsub_events.py b/examples/pubsub_events.py
new file mode 100644
index 00000000..6fe7159b
--- /dev/null
+++ b/examples/pubsub_events.py
@@ -0,0 +1,151 @@
+import sys
+import logging
+import getpass
+from optparse import OptionParser
+
+import sleekxmpp
+from sleekxmpp.xmlstream import ET, tostring
+from sleekxmpp.xmlstream.matcher import StanzaPath
+from sleekxmpp.xmlstream.handler import Callback
+
+
+# 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')
+else:
+    raw_input = input
+
+
+class PubsubEvents(sleekxmpp.ClientXMPP):
+
+    def __init__(self, jid, password):
+        super(PubsubEvents, self).__init__(jid, password)
+
+        self.register_plugin('xep_0030')
+        self.register_plugin('xep_0059')
+        self.register_plugin('xep_0060')
+
+        self.add_event_handler('session_start', self.start)
+
+        # Some services may require configuration to allow
+        # sending delete, configuration, or subscription  events.
+        self.add_event_handler('pubsub_publish', self._publish)
+        self.add_event_handler('pubsub_retract', self._retract)
+        self.add_event_handler('pubsub_purge', self._purge)
+        self.add_event_handler('pubsub_delete', self._delete)
+        self.add_event_handler('pubsub_config', self._config)
+        self.add_event_handler('pubsub_subscription', self._subscription)
+
+        # Want to use nicer, more specific pubsub event names?
+        # self['xep_0060'].map_node_event('node_name', 'event_prefix')
+        # self.add_event_handler('event_prefix_publish', handler)
+        # self.add_event_handler('event_prefix_retract', handler)
+        # self.add_event_handler('event_prefix_purge', handler)
+        # self.add_event_handler('event_prefix_delete', handler)
+
+    def start(self, event):
+        self.get_roster()
+        self.send_presence()
+
+    def _publish(self, msg):
+        """Handle receiving a publish item event."""
+        print('Published item %s to %s:' % (
+            msg['pubsub_event']['items']['item']['id'],
+            msg['pubsub_event']['items']['node']))
+        data = msg['pubsub_event']['items']['item']['payload']
+        if data is not None:
+            print(tostring(data))
+        else:
+            print('No item content')
+
+    def _retract(self, msg):
+        """Handle receiving a retract item event."""
+        print('Retracted item %s from %s' % (
+            msg['pubsub_event']['items']['retract']['id'],
+            msg['pubsub_event']['items']['node']))
+
+    def _purge(self, msg):
+        """Handle receiving a node purge event."""
+        print('Purged all items from %s' % (
+            msg['pubsub_event']['purge']['node']))
+
+    def _delete(self, msg):
+        """Handle receiving a node deletion event."""
+        print('Deleted node %s' % (
+           msg['pubsub_event']['delete']['node']))
+ 
+    def _config(self, msg):
+        """Handle receiving a node configuration event."""
+        print('Configured node %s:' % (
+            msg['pubsub_event']['configuration']['node']))
+        print(msg['pubsub_event']['configuration']['form'])
+
+    def _subscription(self, msg):
+        """Handle receiving a node subscription event."""
+        print('Subscription change for node %s:' % (
+            msg['pubsub_event']['subscription']['node']))
+        print(msg['pubsub_event']['subscription'])
+
+
+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: ")
+
+    logging.info("Run this in conjunction with the pubsub_client.py " + \
+                 "example to watch events happen as you give commands.")
+
+    # Setup the PubsubEvents listener
+    xmpp = PubsubEvents(opts.jid, opts.password)
+
+    # 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 dnspython 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(block=True)
+        print("Done")
+    else:
+        print("Unable to connect.")