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# Copyright (C) 2020 Philipp Hörist <philipp AT hoerist.com>
#
# This file is part of nbxmpp.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; If not, see <http://www.gnu.org/licenses/>.
import logging
from nbxmpp.namespaces import Namespace
def is_error(error):
return isinstance(error, BaseError)
class BaseError(Exception):
def __init__(self, is_fatal=False):
self.is_fatal = is_fatal
class StanzaError(BaseError):
log_level = logging.INFO
app_namespace = None
def __init__(self, stanza):
BaseError.__init__(self)
self.stanza = stanza
self._stanza_name = stanza.getName()
self._error_node = stanza.getTag('error')
self.condition = stanza.getError()
self.condition_data = self._error_node.getTagData(self.condition)
self.app_condition = self._get_app_condition()
self.type = stanza.getErrorType()
self.jid = stanza.getFrom()
self.id = stanza.getID()
self._text = {}
text_elements = self._error_node.getTags('text',
namespace=Namespace.STANZAS)
for element in text_elements:
lang = element.getXmlLang()
text = element.getData()
self._text[lang] = text
def _get_app_condition(self):
if self.app_namespace is None:
return None
for node in self._error_node.getChildren():
if node.getNamespace() == self.app_namespace:
return node.getName()
return None
def get_text(self, pref_lang=None):
if pref_lang is not None:
text = self._text.get(pref_lang)
if text is not None:
return text
if self._text:
text = self._text.get('en')
if text is not None:
return text
text = self._text.get(None)
if text is not None:
return text
return self._text.popitem()[1]
return ''
def set_text(self, lang, text):
self._text[lang] = text
def __str__(self):
condition = self.condition
if self.app_condition is not None:
condition = '%s (%s)' % (self.condition, self.app_condition)
text = self.get_text('en') or ''
if text:
text = ' - %s' % text
return 'Error from %s: %s%s' % (self.jid, condition, text)
class PubSubStanzaError(StanzaError):
app_namespace = Namespace.PUBSUB_ERROR
class HTTPUploadStanzaError(StanzaError):
app_namespace = Namespace.HTTPUPLOAD_0
def get_max_file_size(self):
if self.app_condition != 'file-too-large':
return None
node = self._error_node.getTag(self.app_condition)
try:
return float(node.getTagData('max-file-size'))
except Exception:
return None
def get_retry_date(self):
if self.app_condition != 'retry':
return None
return self._error_node.getTagAttr('stamp')
class MalformedStanzaError(BaseError):
log_level = logging.WARNING
def __init__(self, text, stanza, is_fatal=True):
BaseError.__init__(self, is_fatal=is_fatal)
self.stanza = stanza
self.text = str(text)
class CancelledError(BaseError):
log_level = logging.INFO
def __init__(self):
BaseError.__init__(self, is_fatal=True)
self.text = 'Task has been cancelled'
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