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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from xml.dom import minidom
from openstack.common import xmlutils
from tests import utils
class XMLUtilsTestCase(utils.BaseTestCase):
def test_safe_parse_xml(self):
normal_body = ("""
<?xml version="1.0" ?><foo>
<bar>
<v1>hey</v1>
<v2>there</v2>
</bar>
</foo>""").strip()
def killer_body():
return (("""<!DOCTYPE x [
<!ENTITY a "%(a)s">
<!ENTITY b "%(b)s">
<!ENTITY c "%(c)s">]>
<foo>
<bar>
<v1>%(d)s</v1>
</bar>
</foo>""") % {
'a': 'A' * 10,
'b': '&a;' * 10,
'c': '&b;' * 10,
'd': '&c;' * 9999,
}).strip()
dom = xmlutils.safe_minidom_parse_string(normal_body)
self.assertEqual(normal_body, str(dom.toxml()))
self.assertRaises(ValueError,
xmlutils.safe_minidom_parse_string,
killer_body())
class SafeParserTestCase(utils.BaseTestCase):
def test_external_dtd(self):
xml_string = ("""<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head/>
<body>html with dtd</body>
</html>""")
parser = xmlutils.ProtectedExpatParser(forbid_dtd=True,
forbid_entities=True)
self.assertRaises(ValueError,
minidom.parseString,
xml_string, parser)
def test_external_file(self):
xml_string = """<!DOCTYPE external [
<!ENTITY ee SYSTEM "file:///PATH/TO/root.xml">
]>
<root>ⅇ</root>"""
parser = xmlutils.ProtectedExpatParser(forbid_dtd=False,
forbid_entities=True)
self.assertRaises(ValueError,
minidom.parseString,
xml_string, parser)
def test_notation(self):
xml_string = """<?xml version="1.0" standalone="no"?>
<!-- comment data -->
<!DOCTYPE x [
<!NOTATION notation SYSTEM "notation.jpeg">
]>
<root attr1="value1">
</root>"""
parser = xmlutils.ProtectedExpatParser(forbid_dtd=False,
forbid_entities=True)
self.assertRaises(ValueError,
minidom.parseString,
xml_string, parser)
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