Source code for slixmpp.stanza.rootstanza

# 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 slixmpp.exceptions import XMPPError, IqError, IqTimeout
from slixmpp.stanza import Error
from slixmpp.xmlstream import ET, StanzaBase, register_stanza_plugin

log = logging.getLogger(__name__)

[docs] class RootStanza(StanzaBase): """ A top-level XMPP stanza in an XMLStream. The RootStanza class provides a more XMPP specific exception handler than provided by the generic StanzaBase class. Methods: exception -- Overrides StanzaBase.exception """
[docs] def exception(self, e): """ Create and send an error reply. Typically called when an event handler raises an exception. The error's type and text content are based on the exception object's type and content. Overrides StanzaBase.exception. Arguments: e -- Exception object """ if isinstance(e, IqError): # We received an Iq error reply, but it wasn't caught # locally. Using the condition/text from that error # response could leak too much information, so we'll # only use a generic error here. reply = self.reply() reply['error']['condition'] = 'undefined-condition' reply['error']['text'] = 'External error' reply['error']['type'] = 'cancel' log.warning('You should catch IqError exceptions') reply.send() elif isinstance(e, IqTimeout): reply = self.reply() reply['error']['condition'] = 'remote-server-timeout' reply['error']['type'] = 'wait' log.warning('You should catch IqTimeout exceptions') reply.send() elif isinstance(e, XMPPError): # We raised this deliberately keep_id = self['id'] reply = self.reply(clear=e.clear) reply['id'] = keep_id reply['error']['condition'] = e.condition reply['error']['text'] = e.text reply['error']['type'] = e.etype if reply["error"]["by"] = if e.extension is not None: # Extended error tag extxml = ET.Element("{%s}%s" % (e.extension_ns, e.extension), e.extension_args) reply['error'].append(extxml) reply.send() else: # We probably didn't raise this on purpose, so send an error stanza keep_id = self['id'] reply = self.reply() reply['id'] = keep_id reply['error']['condition'] = 'undefined-condition' reply['error']['text'] = "Slixmpp got into trouble." reply['error']['type'] = 'cancel' reply.send() # log the error log.exception('Error handling {%s}%s stanza', self.namespace, # Finally raise the exception to a global exception handler
register_stanza_plugin(RootStanza, Error)