SickGear/lib/boto/gs/encryptionconfig.py

76 lines
3.2 KiB
Python

# Copyright 2018 Google Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
import types
from boto.gs.user import User
from boto.exception import InvalidEncryptionConfigError
from xml.sax import handler
# Relevant tags for the EncryptionConfiguration XML document.
DEFAULT_KMS_KEY_NAME = 'DefaultKmsKeyName'
ENCRYPTION_CONFIG = 'EncryptionConfiguration'
class EncryptionConfig(handler.ContentHandler):
"""Encapsulates the EncryptionConfiguration XML document"""
def __init__(self):
# Valid items in an EncryptionConfiguration XML node.
self.default_kms_key_name = None
self.parse_level = 0
def validateParseLevel(self, tag, level):
"""Verify parse level for a given tag."""
if self.parse_level != level:
raise InvalidEncryptionConfigError(
'Invalid tag %s at parse level %d: ' % (tag, self.parse_level))
def startElement(self, name, attrs, connection):
"""SAX XML logic for parsing new element found."""
if name == ENCRYPTION_CONFIG:
self.validateParseLevel(name, 0)
self.parse_level += 1;
elif name == DEFAULT_KMS_KEY_NAME:
self.validateParseLevel(name, 1)
self.parse_level += 1;
else:
raise InvalidEncryptionConfigError('Unsupported tag ' + name)
def endElement(self, name, value, connection):
"""SAX XML logic for parsing new element found."""
if name == ENCRYPTION_CONFIG:
self.validateParseLevel(name, 1)
self.parse_level -= 1;
elif name == DEFAULT_KMS_KEY_NAME:
self.validateParseLevel(name, 2)
self.parse_level -= 1;
self.default_kms_key_name = value.strip()
else:
raise InvalidEncryptionConfigError('Unsupported end tag ' + name)
def to_xml(self):
"""Convert EncryptionConfig object into XML string representation."""
s = ['<%s>' % ENCRYPTION_CONFIG]
if self.default_kms_key_name:
s.append('<%s>%s</%s>' % (DEFAULT_KMS_KEY_NAME,
self.default_kms_key_name,
DEFAULT_KMS_KEY_NAME))
s.append('</%s>' % ENCRYPTION_CONFIG)
return ''.join(s)