Rename to slixmpp

1 files changed, 0 insertions, 723 deletions

diff --git a/sleekxmpp/plugins/xep_0323/sensordata.py b/sleekxmpp/plugins/xep_0323/sensordata.py
deleted file mode 100644
index 2e2f2470..00000000
--- a/sleekxmpp/plugins/xep_0323/sensordata.py
+++ /dev/null
@@ -1,723 +0,0 @@
-"""
-    SleekXMPP: The Sleek XMPP Library
-    Implementation of xeps for Internet of Things
-    http://wiki.xmpp.org/web/Tech_pages/IoT_systems
-    Copyright (C) 2013 Sustainable Innovation, Joachim.lindborg@sust.se, bjorn.westrom@consoden.se
-    This file is part of SleekXMPP.
-
-    See the file LICENSE for copying permission.
-"""
-
-import logging
-import time
-import datetime
-from threading import Thread, Lock, Timer
-
-from sleekxmpp.plugins.xep_0323.timerreset import TimerReset
-
-from sleekxmpp.xmlstream import JID
-from sleekxmpp.xmlstream.handler import Callback
-from sleekxmpp.xmlstream.matcher import StanzaPath
-from sleekxmpp.plugins.base import BasePlugin
-from sleekxmpp.plugins.xep_0323 import stanza
-from sleekxmpp.plugins.xep_0323.stanza import Sensordata
-
-
-log = logging.getLogger(__name__)
-
-
-class XEP_0323(BasePlugin):
-
-    """
-    XEP-0323: IoT Sensor Data 
-
-
-    This XEP provides the underlying architecture, basic operations and data
-    structures for sensor data communication over XMPP networks. It includes
-    a hardware abstraction model, removing any technical detail implemented 
-    in underlying technologies.
-
-    Also see <http://xmpp.org/extensions/xep-0323.html>
-
-    Configuration Values:
-        threaded -- Indicates if communication with sensors should be threaded.
-                    Defaults to True.
-
-    Events:
-        Sensor side
-        -----------
-        Sensordata Event:Req    -- Received a request for data
-        Sensordata Event:Cancel -- Received a cancellation for a request
-
-        Client side
-        -----------
-        Sensordata Event:Accepted -- Received a accept from sensor for a request
-        Sensordata Event:Rejected -- Received a reject from sensor for a request
-        Sensordata Event:Cancelled -- Received a cancel confirm from sensor
-        Sensordata Event:Fields   -- Received fields from sensor for a request
-                                     This may be triggered multiple times since 
-                                     the sensor can split up its response in
-                                     multiple messages.
-        Sensordata Event:Failure  -- Received a failure indication from sensor 
-                                     for a request. Typically a comm timeout.
-
-    Attributes:
-        threaded -- Indicates if command events should be threaded.
-                    Defaults to True.
-        sessions -- A dictionary or equivalent backend mapping
-                    session IDs to dictionaries containing data
-                    relevant to a request's session. This dictionary is used
-                    both by the client and sensor side. On client side, seqnr
-                    is used as key, while on sensor side, a session_id is used
-                    as key. This ensures that the two will not collide, so 
-                    one instance can be both client and sensor.
-        Sensor side
-        -----------
-        nodes    -- A dictionary mapping sensor nodes that are serviced through
-                    this XMPP instance to their device handlers ("drivers").
-        Client side
-        -----------
-        last_seqnr -- The last used sequence number (integer). One sequence of
-                    communication (e.g. -->request, <--accept, <--fields)
-                    between client and sensor is identified by a unique
-                    sequence number (unique between the client/sensor pair)
-
-    Methods:
-        plugin_init       -- Overrides base_plugin.plugin_init
-        post_init         -- Overrides base_plugin.post_init
-        plugin_end        -- Overrides base_plugin.plugin_end
-
-        Sensor side
-        -----------
-        register_node     -- Register a sensor as available from this XMPP 
-                             instance.
-
-        Client side
-        -----------
-        request_data      -- Initiates a request for data from one or more 
-                             sensors. Non-blocking, a callback function will
-                             be called when data is available.
-
-    """
-
-    name = 'xep_0323'
-    description = 'XEP-0323 Internet of Things - Sensor Data'
-    dependencies = set(['xep_0030']) 
-    stanza = stanza
-
-
-    default_config = {
-        'threaded': True
-#        'session_db': None
-    }
-
-    def plugin_init(self):
-        """ Start the XEP-0323 plugin """
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Req',
-                    StanzaPath('iq@type=get/req'),
-                    self._handle_event_req))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Accepted',
-                    StanzaPath('iq@type=result/accepted'),
-                    self._handle_event_accepted))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Rejected',
-                    StanzaPath('iq@type=error/rejected'),
-                    self._handle_event_rejected))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Cancel',
-                    StanzaPath('iq@type=get/cancel'),
-                    self._handle_event_cancel))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Cancelled',
-                    StanzaPath('iq@type=result/cancelled'),
-                    self._handle_event_cancelled))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Fields',
-                    StanzaPath('message/fields'),
-                    self._handle_event_fields))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Failure',
-                    StanzaPath('message/failure'),
-                    self._handle_event_failure))
-
-        self.xmpp.register_handler(
-                Callback('Sensordata Event:Started',
-                    StanzaPath('message/started'),
-                    self._handle_event_started))
-
-        # Server side dicts
-        self.nodes = {};
-        self.sessions = {};
-
-        self.last_seqnr = 0;
-        self.seqnr_lock = Lock();
-
-        ## For testning only
-        self.test_authenticated_from = ""
-
-    def post_init(self):
-        """ Init complete. Register our features in Serivce discovery. """
-        BasePlugin.post_init(self)
-        self.xmpp['xep_0030'].add_feature(Sensordata.namespace)
-        self.xmpp['xep_0030'].set_items(node=Sensordata.namespace, items=tuple())
-
-    def _new_session(self):
-        """ Return a new session ID. """
-        return str(time.time()) + '-' + self.xmpp.new_id()
-
-    def session_bind(self, jid):
-        logging.debug("setting the Disco discovery for %s" % Sensordata.namespace)
-        self.xmpp['xep_0030'].add_feature(Sensordata.namespace)
-        self.xmpp['xep_0030'].set_items(node=Sensordata.namespace, items=tuple())
-
-
-    def plugin_end(self):
-        """ Stop the XEP-0323 plugin """
-        self.sessions.clear();
-        self.xmpp.remove_handler('Sensordata Event:Req')
-        self.xmpp.remove_handler('Sensordata Event:Accepted')
-        self.xmpp.remove_handler('Sensordata Event:Rejected')
-        self.xmpp.remove_handler('Sensordata Event:Cancel')
-        self.xmpp.remove_handler('Sensordata Event:Cancelled')
-        self.xmpp.remove_handler('Sensordata Event:Fields')
-        self.xmpp['xep_0030'].del_feature(feature=Sensordata.namespace)
-
-
-    # =================================================================
-    # Sensor side (data provider) API
-
-    def register_node(self, nodeId, device, commTimeout, sourceId=None, cacheType=None):
-        """
-        Register a sensor/device as available for serving of data through this XMPP
-        instance. 
-
-        The device object may by any custom implementation to support 
-        specific devices, but it must implement the functions:
-          has_field
-          request_fields
-        according to the interfaces shown in the example device.py file.
-
-        Arguments:
-            nodeId      -- The identifier for the device
-            device      -- The device object
-            commTimeout -- Time in seconds to wait between each callback from device during
-                           a data readout. Float.
-            sourceId    -- [optional] identifying the data source controlling the device
-            cacheType   -- [optional] narrowing down the search to a specific kind of node        
-        """
-        self.nodes[nodeId] = {"device": device, 
-                                "commTimeout": commTimeout,
-                                "sourceId": sourceId, 
-                                "cacheType": cacheType};
-
-    def _set_authenticated(self, auth=''):
-        """ Internal testing function """
-        self.test_authenticated_from = auth;
-
-
-    def _handle_event_req(self, iq):
-        """
-        Event handler for reception of an Iq with req - this is a request.
-
-        Verifies that 
-          - all the requested nodes are available
-          - at least one of the requested fields is available from at least 
-            one of the nodes
-
-        If the request passes verification, an accept response is sent, and
-        the readout process is started in a separate thread.
-        If the verification fails, a reject message is sent.
-        """
-
-        seqnr = iq['req']['seqnr'];
-        error_msg = '';
-        req_ok = True;
-
-        # Authentication
-        if len(self.test_authenticated_from) > 0 and not iq['from'] == self.test_authenticated_from:
-            # Invalid authentication
-            req_ok = False;
-            error_msg = "Access denied";
-
-        # Nodes
-        process_nodes = [];
-        if len(iq['req']['nodes']) > 0:
-            for n in iq['req']['nodes']:
-                if not n['nodeId'] in self.nodes:
-                    req_ok = False;
-                    error_msg = "Invalid nodeId " + n['nodeId'];
-            process_nodes = [n['nodeId'] for n in iq['req']['nodes']];
-        else:
-            process_nodes = self.nodes.keys();
-
-        # Fields - if we just find one we are happy, otherwise we reject
-        process_fields = [];
-        if len(iq['req']['fields']) > 0:
-            found = False
-            for f in iq['req']['fields']:
-                for node in self.nodes:
-                    if self.nodes[node]["device"].has_field(f['name']):
-                        found = True;
-                        break;
-            if not found:
-                req_ok = False;
-                error_msg = "Invalid field " + f['name'];
-            process_fields = [f['name'] for n in iq['req']['fields']];
-
-        req_flags = iq['req']._get_flags();
-
-        request_delay_sec = None
-        if 'when' in req_flags:
-            # Timed request - requires datetime string in iso format
-            # ex. 2013-04-05T15:00:03
-            dt = None
-            try:
-                dt = datetime.datetime.strptime(req_flags['when'], "%Y-%m-%dT%H:%M:%S")
-            except ValueError:
-                req_ok = False;
-                error_msg = "Invalid datetime in 'when' flag, please use ISO format (i.e. 2013-04-05T15:00:03)."
-
-            if not dt is None:
-                # Datetime properly formatted
-                dtnow = datetime.datetime.now()
-                dtdiff = dt - dtnow
-                request_delay_sec = dtdiff.seconds + dtdiff.days * 24 * 3600
-                if request_delay_sec <= 0:
-                    req_ok = False;
-                    error_msg = "Invalid datetime in 'when' flag, cannot set a time in the past. Current time: " + dtnow.isoformat();
-
-        if req_ok:
-            session = self._new_session();
-            self.sessions[session] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr};
-            self.sessions[session]["commTimers"] = {};
-            self.sessions[session]["nodeDone"] = {};
-
-            #print("added session: " + str(self.sessions))
-
-            iq.reply();
-            iq['accepted']['seqnr'] = seqnr;
-            if not request_delay_sec is None:
-                iq['accepted']['queued'] = "true"
-            iq.send(block=False);
-
-            self.sessions[session]["node_list"] = process_nodes;
-
-            if not request_delay_sec is None:
-                # Delay request to requested time
-                timer = Timer(request_delay_sec, self._event_delayed_req, args=(session, process_fields, req_flags))
-                self.sessions[session]["commTimers"]["delaytimer"] = timer;
-                timer.start();
-                return
-
-            if self.threaded:
-                #print("starting thread")
-                tr_req = Thread(target=self._threaded_node_request, args=(session, process_fields, req_flags))
-                tr_req.start()
-                #print("started thread")
-            else:
-                self._threaded_node_request(session, process_fields, req_flags);
-
-        else:
-            iq.reply();
-            iq['type'] = 'error';
-            iq['rejected']['seqnr'] = seqnr;
-            iq['rejected']['error'] = error_msg;
-            iq.send(block=False);            
-
-    def _threaded_node_request(self, session, process_fields, flags):
-        """ 
-        Helper function to handle the device readouts in a separate thread.
-        
-        Arguments:
-            session         -- The request session id
-            process_fields  -- The fields to request from the devices
-            flags           -- [optional] flags to pass to the devices, e.g. momentary
-                               Formatted as a dictionary like { "flag name": "flag value" ... }
-        """
-        for node in self.sessions[session]["node_list"]:
-            self.sessions[session]["nodeDone"][node] = False;        
-
-        for node in self.sessions[session]["node_list"]:
-            timer = TimerReset(self.nodes[node]['commTimeout'], self._event_comm_timeout, args=(session, node));
-            self.sessions[session]["commTimers"][node] = timer;
-            #print("Starting timer " + str(timer) + ", timeout: " + str(self.nodes[node]['commTimeout']))
-            timer.start();
-            self.nodes[node]['device'].request_fields(process_fields, flags=flags, session=session, callback=self._device_field_request_callback);
-
-    def _event_comm_timeout(self, session, nodeId):
-        """ 
-        Triggered if any of the readout operations timeout.
-        Sends a failure message back to the client, stops communicating
-        with the failing device.
-        
-        Arguments:
-            session         -- The request session id
-            nodeId          -- The id of the device which timed out
-        """
-        msg = self.xmpp.Message();
-        msg['from'] = self.sessions[session]['to'];
-        msg['to'] = self.sessions[session]['from'];
-        msg['failure']['seqnr'] = self.sessions[session]['seqnr'];            
-        msg['failure']['error']['text'] = "Timeout";
-        msg['failure']['error']['nodeId'] = nodeId;
-        msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat();
-
-        # Drop communication with this device and check if we are done
-        self.sessions[session]["nodeDone"][nodeId] = True;
-        if (self._all_nodes_done(session)):
-            msg['failure']['done'] = 'true';
-        msg.send();
-        # The session is complete, delete it
-        #print("del session " + session + " due to timeout")
-        del self.sessions[session];
-
-    def _event_delayed_req(self, session, process_fields, req_flags):
-        """
-        Triggered when the timer from a delayed request fires.
-
-        Arguments:
-            session         -- The request session id
-            process_fields  -- The fields to request from the devices
-            flags           -- [optional] flags to pass to the devices, e.g. momentary
-                               Formatted as a dictionary like { "flag name": "flag value" ... }
-        """
-        msg = self.xmpp.Message();
-        msg['from'] = self.sessions[session]['to'];
-        msg['to'] = self.sessions[session]['from'];
-        msg['started']['seqnr'] = self.sessions[session]['seqnr'];
-        msg.send();
-
-        if self.threaded:
-            tr_req = Thread(target=self._threaded_node_request, args=(session, process_fields, req_flags))
-            tr_req.start()
-        else:
-            self._threaded_node_request(session, process_fields, req_flags);
-
-    def _all_nodes_done(self, session):
-        """ 
-        Checks wheter all devices are done replying to the readout.
-        
-        Arguments:
-            session         -- The request session id
-        """
-        for n in self.sessions[session]["nodeDone"]:
-            if not self.sessions[session]["nodeDone"][n]:
-                return False;
-        return True;
-
-    def _device_field_request_callback(self, session, nodeId, result, timestamp_block, error_msg=None):
-        """ 
-        Callback function called by the devices when they have any additional data.
-        Composes a message with the data and sends it back to the client, and resets 
-        the timeout timer for the device.
-        
-        Arguments:
-            session         -- The request session id
-            nodeId          -- The device id which initiated the callback
-            result          -- The current result status of the readout. Valid values are:
-                               "error"  - Readout failed.
-                               "fields" - Contains readout data.
-                               "done"   - Indicates that the readout is complete. May contain 
-                                          readout data.
-            timestamp_block -- [optional] Only applies when result != "error" 
-                               The readout data. Structured as a dictionary:
-              { 
-                timestamp:     timestamp for this datablock,
-                fields:        list of field dictionary (one per readout field).
-                  readout field dictionary format:
-                  {
-                    type:      The field type (numeric, boolean, dateTime, timeSpan, string, enum)
-                    name:      The field name
-                    value:     The field value
-                    unit:      The unit of the field. Only applies to type numeric.
-                    dataType:  The datatype of the field. Only applies to type enum.
-                    flags:     [optional] data classifier flags for the field, e.g. momentary
-                               Formatted as a dictionary like { "flag name": "flag value" ... }
-                  }  
-              }
-            error_msg        -- [optional] Only applies when result == "error".
-                                Error details when a request failed.
-        """
-        if not session in self.sessions:
-            # This can happend if a session was deleted, like in a cancellation. Just drop the data.
-            return
-
-        if result == "error":
-            self.sessions[session]["commTimers"][nodeId].cancel();
-
-            msg = self.xmpp.Message();
-            msg['from'] = self.sessions[session]['to'];
-            msg['to'] = self.sessions[session]['from'];
-            msg['failure']['seqnr'] = self.sessions[session]['seqnr'];
-            msg['failure']['error']['text'] = error_msg;
-            msg['failure']['error']['nodeId'] = nodeId;
-            msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat();
-
-            # Drop communication with this device and check if we are done
-            self.sessions[session]["nodeDone"][nodeId] = True;   
-            if (self._all_nodes_done(session)):
-                msg['failure']['done'] = 'true';
-                # The session is complete, delete it
-                # print("del session " + session + " due to error")
-                del self.sessions[session];
-            msg.send();
-        else:
-            msg = self.xmpp.Message();
-            msg['from'] = self.sessions[session]['to'];
-            msg['to'] = self.sessions[session]['from'];
-            msg['fields']['seqnr'] = self.sessions[session]['seqnr'];
-
-            if timestamp_block is not None and len(timestamp_block) > 0:
-                node = msg['fields'].add_node(nodeId);
-                ts = node.add_timestamp(timestamp_block["timestamp"]);
-
-                for f in timestamp_block["fields"]:
-                    data = ts.add_data( typename=f['type'], 
-                                        name=f['name'], 
-                                        value=f['value'], 
-                                        unit=f['unit'], 
-                                        dataType=f['dataType'], 
-                                        flags=f['flags']);
-
-            if result == "done":
-                self.sessions[session]["commTimers"][nodeId].cancel();
-                self.sessions[session]["nodeDone"][nodeId] = True;
-                msg['fields']['done'] = 'true';
-                if (self._all_nodes_done(session)):
-                    # The session is complete, delete it
-                    # print("del session " + session + " due to complete")
-                    del self.sessions[session];
-            else:
-                # Restart comm timer
-                self.sessions[session]["commTimers"][nodeId].reset();
-
-            msg.send();
-
-    def _handle_event_cancel(self, iq):
-        """ Received Iq with cancel - this is a cancel request. 
-        Delete the session and confirm. """
-
-        seqnr = iq['cancel']['seqnr'];
-        # Find the session
-        for s in self.sessions:
-            if self.sessions[s]['from'] == iq['from'] and self.sessions[s]['to'] == iq['to'] and self.sessions[s]['seqnr'] == seqnr:
-                # found it. Cancel all timers
-                for n in self.sessions[s]["commTimers"]:
-                    self.sessions[s]["commTimers"][n].cancel();
-
-                # Confirm
-                iq.reply();
-                iq['type'] = 'result';
-                iq['cancelled']['seqnr'] = seqnr;
-                iq.send(block=False);            
-                
-                # Delete session
-                del self.sessions[s]
-                return
-
-        # Could not find session, send reject
-        iq.reply();
-        iq['type'] = 'error';
-        iq['rejected']['seqnr'] = seqnr;
-        iq['rejected']['error'] = "Cancel request received, no matching request is active.";
-        iq.send(block=False);       
-
-    # =================================================================
-    # Client side (data retriever) API
-
-    def request_data(self, from_jid, to_jid, callback, nodeIds=None, fields=None, flags=None):
-        """ 
-        Called on the client side to initiade a data readout.
-        Composes a message with the request and sends it to the device(s).
-        Does not block, the callback will be called when data is available.
-        
-        Arguments:
-            from_jid        -- The jid of the requester
-            to_jid          -- The jid of the device(s)
-            callback        -- The callback function to call when data is availble. 
-                            
-                            The callback function must support the following arguments:
-
-                from_jid    -- The jid of the responding device(s)
-                result      -- The current result status of the readout. Valid values are:
-                               "accepted"  - Readout request accepted
-                               "queued"    - Readout request accepted and queued
-                               "rejected"  - Readout request rejected
-                               "failure"   - Readout failed.
-                               "cancelled" - Confirmation of request cancellation.
-                               "started"   - Previously queued request is now started
-                               "fields"    - Contains readout data.
-                               "done"      - Indicates that the readout is complete.
-
-                nodeId      -- [optional] Mandatory when result == "fields" or "failure".
-                               The node Id of the responding device. One callback will only
-                               contain data from one device.
-                timestamp   -- [optional] Mandatory when result == "fields".
-                               The timestamp of data in this callback. One callback will only
-                               contain data from one timestamp.
-                fields      -- [optional] Mandatory when result == "fields".
-                               List of field dictionaries representing the readout data. 
-                               Dictionary format:
-                  {
-                    typename:  The field type (numeric, boolean, dateTime, timeSpan, string, enum)
-                    name:      The field name
-                    value:     The field value
-                    unit:      The unit of the field. Only applies to type numeric.
-                    dataType:  The datatype of the field. Only applies to type enum.
-                    flags:     [optional] data classifier flags for the field, e.g. momentary.
-                               Formatted as a dictionary like { "flag name": "flag value" ... }
-                  }  
-
-                error_msg   -- [optional] Mandatory when result == "rejected" or "failure".
-                               Details about why the request is rejected or failed. 
-                               "rejected" means that the request is stopped, but note that the 
-                               request will continue even after a "failure". "failure" only means
-                               that communication was stopped to that specific device, other
-                               device(s) (if any) will continue their readout.
-
-            nodeIds      -- [optional] Limits the request to the node Ids in this list.
-            fields       -- [optional] Limits the request to the field names in this list.
-            flags        -- [optional] Limits the request according to the flags, or sets
-                            readout conditions such as timing.
-
-        Return value:
-            session      -- Session identifier. Client can use this as a reference to cancel
-                            the request.
-        """
-        iq = self.xmpp.Iq();
-        iq['from'] = from_jid;
-        iq['to'] = to_jid;
-        iq['type'] = "get";
-        seqnr = self._get_new_seqnr();
-        iq['id'] = seqnr;
-        iq['req']['seqnr'] = seqnr;
-        if nodeIds is not None:
-            for nodeId in nodeIds:
-                iq['req'].add_node(nodeId);
-        if fields is not None:
-            for field in fields:
-                iq['req'].add_field(field);
-
-        iq['req']._set_flags(flags);
-
-        self.sessions[seqnr] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr, "callback": callback};
-        iq.send(block=False); 
-
-        return seqnr;
-
-    def cancel_request(self, session):
-        """ 
-        Called on the client side to cancel a request for data readout.
-        Composes a message with the cancellation and sends it to the device(s).
-        Does not block, the callback will be called when cancellation is 
-        confirmed.
-        
-        Arguments:
-            session        -- The session id of the request to cancel
-        """
-        seqnr = session
-        iq = self.xmpp.Iq();
-        iq['from'] = self.sessions[seqnr]['from']
-        iq['to'] = self.sessions[seqnr]['to'];
-        iq['type'] = "get";
-        iq['id'] = seqnr;
-        iq['cancel']['seqnr'] = seqnr;
-        iq.send(block=False);
-
-    def _get_new_seqnr(self):
-        """ Returns a unique sequence number (unique across threads) """
-        self.seqnr_lock.acquire();
-        self.last_seqnr = self.last_seqnr + 1;
-        self.seqnr_lock.release();
-        return str(self.last_seqnr);
-
-    def _handle_event_accepted(self, iq):
-        """ Received Iq with accepted - request was accepted """
-        seqnr = iq['accepted']['seqnr'];
-        result = "accepted"
-        if iq['accepted']['queued'] == 'true':
-            result = "queued"
-
-        callback = self.sessions[seqnr]["callback"];
-        callback(from_jid=iq['from'], result=result);
-
-    def _handle_event_rejected(self, iq):
-        """ Received Iq with rejected - this is a reject. 
-        Delete the session. """
-        seqnr = iq['rejected']['seqnr'];
-        callback = self.sessions[seqnr]["callback"];
-        callback(from_jid=iq['from'], result="rejected", error_msg=iq['rejected']['error']);
-        # Session terminated
-        del self.sessions[seqnr];
-
-    def _handle_event_cancelled(self, iq):
-        """ 
-        Received Iq with cancelled - this is a cancel confirm. 
-        Delete the session. 
-        """
-        #print("Got cancelled")
-        seqnr = iq['cancelled']['seqnr'];
-        callback = self.sessions[seqnr]["callback"];
-        callback(from_jid=iq['from'], result="cancelled");
-        # Session cancelled
-        del self.sessions[seqnr];
-
-    def _handle_event_fields(self, msg):
-        """ 
-        Received Msg with fields - this is a data reponse to a request.
-        If this is the last data block, issue a "done" callback.
-        """
-        seqnr = msg['fields']['seqnr'];
-        callback = self.sessions[seqnr]["callback"];
-        for node in msg['fields']['nodes']:
-            for ts in node['timestamps']:
-                fields = [];
-                for d in ts['datas']:
-                    field_block = {};
-                    field_block["name"] = d['name'];
-                    field_block["typename"] = d._get_typename();
-                    field_block["value"] = d['value'];
-                    if not d['unit'] == "": field_block["unit"] = d['unit'];
-                    if not d['dataType'] == "": field_block["dataType"] = d['dataType'];
-                    flags = d._get_flags();
-                    if not len(flags) == 0:
-                        field_block["flags"] = flags;
-                    fields.append(field_block);
-
-                callback(from_jid=msg['from'], result="fields", nodeId=node['nodeId'], timestamp=ts['value'], fields=fields);
-                
-        if msg['fields']['done'] == "true":
-            callback(from_jid=msg['from'], result="done");
-            # Session done
-            del self.sessions[seqnr];
-
-    def _handle_event_failure(self, msg):
-        """ 
-        Received Msg with failure - our request failed
-        Delete the session. 
-        """
-        seqnr = msg['failure']['seqnr'];
-        callback = self.sessions[seqnr]["callback"];
-        callback(from_jid=msg['from'], result="failure", nodeId=msg['failure']['error']['nodeId'], timestamp=msg['failure']['error']['timestamp'], error_msg=msg['failure']['error']['text']);
-
-        # Session failed
-        del self.sessions[seqnr];
-
-    def _handle_event_started(self, msg):
-        """ 
-        Received Msg with started - our request was queued and is now started. 
-        """
-        seqnr = msg['started']['seqnr'];
-        callback = self.sessions[seqnr]["callback"];
-        callback(from_jid=msg['from'], result="started");
-    
-