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115 lines
4.7 KiB
Python
115 lines
4.7 KiB
Python
from xml.dom import minidom
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from django.core import serializers
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from django.core.serializers.xml_serializer import DTDForbidden
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from django.test import TestCase, TransactionTestCase
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from .tests import SerializersTestBase, SerializersTransactionTestBase
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class XmlSerializerTestCase(SerializersTestBase, TestCase):
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serializer_name = "xml"
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pkless_str = """<?xml version="1.0" encoding="utf-8"?>
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<django-objects version="1.0">
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<object model="serializers.category">
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<field type="CharField" name="name">Reference</field>
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</object>
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<object model="serializers.category">
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<field type="CharField" name="name">Non-fiction</field>
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</object>
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</django-objects>"""
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mapping_ordering_str = """<?xml version="1.0" encoding="utf-8"?>
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<django-objects version="1.0">
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<object model="serializers.article" pk="%(article_pk)s">
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<field name="author" rel="ManyToOneRel" to="serializers.author">%(author_pk)s</field>
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<field name="headline" type="CharField">Poker has no place on ESPN</field>
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<field name="pub_date" type="DateTimeField">2006-06-16T11:00:00</field>
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<field name="categories" rel="ManyToManyRel" to="serializers.category"><object pk="%(first_category_pk)s"></object><object pk="%(second_category_pk)s"></object></field>
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<field name="meta_data" rel="ManyToManyRel" to="serializers.categorymetadata"></field>
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</object>
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</django-objects>""" # NOQA
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@staticmethod
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def _comparison_value(value):
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# The XML serializer handles everything as strings, so comparisons
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# need to be performed on the stringified value
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return str(value)
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@staticmethod
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def _validate_output(serial_str):
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try:
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minidom.parseString(serial_str)
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except Exception:
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return False
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else:
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return True
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@staticmethod
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def _get_pk_values(serial_str):
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ret_list = []
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dom = minidom.parseString(serial_str)
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fields = dom.getElementsByTagName("object")
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for field in fields:
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ret_list.append(field.getAttribute("pk"))
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return ret_list
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@staticmethod
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def _get_field_values(serial_str, field_name):
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ret_list = []
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dom = minidom.parseString(serial_str)
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fields = dom.getElementsByTagName("field")
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for field in fields:
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if field.getAttribute("name") == field_name:
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temp = []
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for child in field.childNodes:
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temp.append(child.nodeValue)
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ret_list.append("".join(temp))
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return ret_list
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def test_control_char_failure(self):
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"""
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Serializing control characters with XML should fail as those characters
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are not supported in the XML 1.0 standard (except HT, LF, CR).
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"""
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self.a1.headline = "This contains \u0001 control \u0011 chars"
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msg = "Article.headline (pk:%s) contains unserializable characters" % self.a1.pk
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with self.assertRaisesMessage(ValueError, msg):
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serializers.serialize(self.serializer_name, [self.a1])
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self.a1.headline = "HT \u0009, LF \u000A, and CR \u000D are allowed"
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self.assertIn(
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"HT \t, LF \n, and CR \r are allowed",
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serializers.serialize(self.serializer_name, [self.a1])
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)
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def test_no_dtd(self):
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"""
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The XML deserializer shouldn't allow a DTD.
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This is the most straightforward way to prevent all entity definitions
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and avoid both external entities and entity-expansion attacks.
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"""
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xml = '<?xml version="1.0" standalone="no"?><!DOCTYPE example SYSTEM "http://example.com/example.dtd">'
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with self.assertRaises(DTDForbidden):
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next(serializers.deserialize('xml', xml))
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class XmlSerializerTransactionTestCase(SerializersTransactionTestBase, TransactionTestCase):
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serializer_name = "xml"
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fwd_ref_str = """<?xml version="1.0" encoding="utf-8"?>
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<django-objects version="1.0">
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<object pk="1" model="serializers.article">
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<field to="serializers.author" name="author" rel="ManyToOneRel">1</field>
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<field type="CharField" name="headline">Forward references pose no problem</field>
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<field type="DateTimeField" name="pub_date">2006-06-16T15:00:00</field>
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<field to="serializers.category" name="categories" rel="ManyToManyRel">
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<object pk="1"></object>
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</field>
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<field to="serializers.categorymetadata" name="meta_data" rel="ManyToManyRel"></field>
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</object>
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<object pk="1" model="serializers.author">
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<field type="CharField" name="name">Agnes</field>
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</object>
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<object pk="1" model="serializers.category">
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<field type="CharField" name="name">Reference</field></object>
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</django-objects>"""
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