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+"""
+ 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