""" SleekXMPP: The Sleek XMPP Library Copyright (C) 2010 Nathanael C. Fritz This file is part of SleekXMPP. See the file LICENSE for copying permission. """ from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin class Error(ElementBase): """ XMPP stanzas of type 'error' should include an <error> stanza that describes the nature of the error and how it should be handled. Use the 'XEP-0086: Error Condition Mappings' plugin to include error codes used in older XMPP versions. Example error stanza: <error type="cancel" code="404"> <item-not-found xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" /> <text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"> The item was not found. </text> </error> Stanza Interface: code -- The error code used in older XMPP versions. condition -- The name of the condition element. text -- Human readable description of the error. type -- Error type indicating how the error should be handled. Attributes: conditions -- The set of allowable error condition elements. condition_ns -- The namespace for the condition element. types -- A set of values indicating how the error should be treated. Methods: setup -- Overrides ElementBase.setup. get_condition -- Retrieve the name of the condition element. set_condition -- Add a condition element. del_condition -- Remove the condition element. get_text -- Retrieve the contents of the <text> element. set_text -- Set the contents of the <text> element. del_text -- Remove the <text> element. """ namespace = 'jabber:client' name = 'error' plugin_attrib = 'error' interfaces = set(('code', 'condition', 'text', 'type')) sub_interfaces = set(('text',)) plugin_attrib_map = {} plugin_tag_map = {} conditions = set(('bad-request', 'conflict', 'feature-not-implemented', 'forbidden', 'gone', 'internal-server-error', 'item-not-found', 'jid-malformed', 'not-acceptable', 'not-allowed', 'not-authorized', 'payment-required', 'recipient-unavailable', 'redirect', 'registration-required', 'remote-server-not-found', 'remote-server-timeout', 'resource-constraint', 'service-unavailable', 'subscription-required', 'undefined-condition', 'unexpected-request')) condition_ns = 'urn:ietf:params:xml:ns:xmpp-stanzas' types = set(('cancel', 'continue', 'modify', 'auth', 'wait')) def setup(self, xml=None): """ Populate the stanza object using an optional XML object. Overrides ElementBase.setup. Sets a default error type and condition, and changes the parent stanza's type to 'error'. Arguments: xml -- Use an existing XML object for the stanza's values. """ if ElementBase.setup(self, xml): #If we had to generate XML then set default values. self['type'] = 'cancel' self['condition'] = 'feature-not-implemented' if self.parent is not None: self.parent()['type'] = 'error' def get_condition(self): """Return the condition element's name.""" for child in self.xml.getchildren(): if "{%s}" % self.condition_ns in child.tag: cond = child.tag.split('}', 1)[-1] if cond in self.conditions: return cond return '' def set_condition(self, value): """ Set the tag name of the condition element. Arguments: value -- The tag name of the condition element. """ if value in self.conditions: del self['condition'] self.xml.append(ET.Element("{%s}%s" % (self.condition_ns, value))) return self def del_condition(self): """Remove the condition element.""" for child in self.xml.getchildren(): if "{%s}" % self.condition_ns in child.tag: tag = child.tag.split('}', 1)[-1] if tag in self.conditions: self.xml.remove(child) return self def get_text(self): """Retrieve the contents of the <text> element.""" return self._get_sub_text('{%s}text' % self.condition_ns) def set_text(self, value): """ Set the contents of the <text> element. Arguments: value -- The new contents for the <text> element. """ self._set_sub_text('{%s}text' % self.condition_ns, text=value) return self def del_text(self): """Remove the <text> element.""" self._del_sub('{%s}text' % self.condition_ns) return self # To comply with PEP8, method names now use underscores. # Deprecated method names are re-mapped for backwards compatibility. Error.getCondition = Error.get_condition Error.setCondition = Error.set_condition Error.delCondition = Error.del_condition Error.getText = Error.get_text Error.setText = Error.set_text Error.delText = Error.del_text