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