1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
|
from pypy.module.pyexpat.interp_pyexpat import global_storage
from pytest import skip
class AppTestPyexpat:
spaceconfig = dict(usemodules=['pyexpat', '_multibytecodec'])
def teardown_class(cls):
global_storage.clear()
def test_simple(self):
import pyexpat
p = pyexpat.ParserCreate()
res = p.Parse("<xml></xml>")
assert res == 1
exc = raises(pyexpat.ExpatError, p.Parse, "3")
assert exc.value.lineno == 1
assert exc.value.offset == 11
assert exc.value.code == 9 # XML_ERROR_JUNK_AFTER_DOC_ELEMENT
pyexpat.ExpatError("error")
def test_attributes(self):
import pyexpat
p = pyexpat.ParserCreate()
def test_setget(p, attr, default=False):
assert getattr(p, attr) is default
for x in 0, 1, 2, 0:
setattr(p, attr, x)
assert getattr(p, attr) is bool(x), attr
for attr in ('buffer_text', 'namespace_prefixes', 'ordered_attributes',
'specified_attributes'):
test_setget(p, attr)
def test_version(self):
import pyexpat
assert isinstance(pyexpat.__version__, str)
assert pyexpat.EXPAT_VERSION.startswith('expat_')
assert isinstance(pyexpat.version_info, tuple)
assert isinstance(pyexpat.version_info[0], int)
def test_malformed_xml(self):
import sys
if sys.platform == "darwin":
skip("Fails with the version of expat on Mac OS 10.6.6")
import pyexpat
xml = "\0\r\n"
parser = pyexpat.ParserCreate()
raises(pyexpat.ExpatError, "parser.Parse(xml, True)")
def test_encoding_argument(self):
import pyexpat
for encoding_arg in (None, 'utf-8', 'iso-8859-1'):
for namespace_arg in (None, '{'):
print(encoding_arg, namespace_arg)
p = pyexpat.ParserCreate(encoding_arg, namespace_arg)
data = []
p.CharacterDataHandler = lambda s: data.append(s)
encoding = encoding_arg is None and 'utf-8' or encoding_arg
res = p.Parse(u"<xml>\u00f6</xml>".encode(encoding), True)
assert res == 1
assert data == [u"\u00f6"]
def test_get_handler(self):
import pyexpat
p = pyexpat.ParserCreate()
assert p.StartElementHandler is None
assert p.EndElementHandler is None
def f(*args): pass
p.StartElementHandler = f
assert p.StartElementHandler is f
def g(*args): pass
p.EndElementHandler = g
assert p.StartElementHandler is f
assert p.EndElementHandler is g
def test_intern(self):
import pyexpat
p = pyexpat.ParserCreate()
def f(*args): pass
p.StartElementHandler = f
p.EndElementHandler = f
p.Parse("<xml></xml>")
assert len(p.intern) == 1
def test_set_buffersize(self):
import pyexpat, sys
p = pyexpat.ParserCreate()
p.buffer_size = 150
assert p.buffer_size == 150
raises(OverflowError,
setattr, p, 'buffer_size', sys.maxsize + 1)
def test_encoding_xml(self):
# use one of the few encodings built-in in expat
xml = b"<?xml version='1.0' encoding='iso-8859-1'?><s>caf\xe9</s>"
import pyexpat
p = pyexpat.ParserCreate()
def gotText(text):
assert text == "caf\xe9"
p.CharacterDataHandler = gotText
p.Parse(xml)
def test_explicit_encoding(self):
xml = b"<?xml version='1.0'?><s>caf\xe9</s>"
import pyexpat
p = pyexpat.ParserCreate(encoding='iso-8859-1')
def gotText(text):
assert text == "caf\xe9"
p.CharacterDataHandler = gotText
p.Parse(xml)
def test_python_encoding(self):
# This name is not known by expat
xml = b"<?xml version='1.0' encoding='latin1'?><s>caf\xe9</s>"
import pyexpat
p = pyexpat.ParserCreate()
def gotText(text):
assert text == "caf\xe9"
p.CharacterDataHandler = gotText
p.Parse(xml)
def test_mbcs(self):
xml = b"<?xml version='1.0' encoding='gbk'?><p/>"
import pyexpat
p = pyexpat.ParserCreate()
exc = raises(ValueError, p.Parse, xml)
assert str(exc.value) == "multi-byte encodings are not supported"
def test_parse_str(self):
xml = "<?xml version='1.0' encoding='latin1'?><s>caf\xe9</s>"
import pyexpat
p = pyexpat.ParserCreate()
def gotText(text):
assert text == "caf\xe9"
p.CharacterDataHandler = gotText
p.Parse(xml)
def test_decode_error(self):
xml = b'<fran\xe7ais>Comment \xe7a va ? Tr\xe8s bien ?</fran\xe7ais>'
import pyexpat
p = pyexpat.ParserCreate()
def f(*args): pass
p.StartElementHandler = f
exc = raises(UnicodeDecodeError, p.Parse, xml)
assert exc.value.start == 4
def test_external_entity(self):
xml = ('<!DOCTYPE doc [\n'
' <!ENTITY test SYSTEM "whatever">\n'
']>\n'
'<doc>&test;</doc>')
import pyexpat
p = pyexpat.ParserCreate()
def handler(*args):
# context, base, systemId, publicId
assert args == ('test', None, 'whatever', None)
return True
p.ExternalEntityRefHandler = handler
p.Parse(xml)
def test_errors(self):
import types
import pyexpat
assert isinstance(pyexpat.errors, types.ModuleType)
# check a few random errors
assert pyexpat.errors.XML_ERROR_SYNTAX == 'syntax error'
assert (pyexpat.errors.XML_ERROR_INCORRECT_ENCODING ==
'encoding specified in XML declaration is incorrect')
assert (pyexpat.errors.XML_ERROR_XML_DECL ==
'XML declaration not well-formed')
def test_model(self):
import pyexpat
assert isinstance(pyexpat.model.XML_CTYPE_EMPTY, int)
def test_codes(self):
from pyexpat import errors
# verify mapping of errors.codes and errors.messages
message = errors.messages[errors.codes[errors.XML_ERROR_SYNTAX]]
assert errors.XML_ERROR_SYNTAX == message
def test_expaterror(self):
import pyexpat
from pyexpat import errors
xml = '<'
parser = pyexpat.ParserCreate()
e = raises(pyexpat.ExpatError, parser.Parse, xml, True)
assert e.value.code == errors.codes[errors.XML_ERROR_UNCLOSED_TOKEN]
def test_read_chunks(self):
import io
import pyexpat
from contextlib import closing
xml = b'<xml>' + (b' ' * 4096) + b'</xml>'
with closing(io.BytesIO(xml)) as sio:
class FakeReader():
def __init__(self):
self.read_count = 0
def read(self, size):
self.read_count += 1
assert size > 0
return sio.read(size)
fake_reader = FakeReader()
p = pyexpat.ParserCreate()
p.ParseFile(fake_reader)
assert fake_reader.read_count == 4
def test_entities(self):
import pyexpat
parser = pyexpat.ParserCreate(None, "")
def startElement(tag, attrs):
assert tag == 'http://www.w3.org/1999/02/22-rdf-syntax-ns#RDF'
assert attrs == {
'http://www.w3.org/XML/1998/namespacebase':
'http://www.semanticweb.org/jiba/ontologies/2017/0/test'}
parser.StartElementHandler = startElement
parser.Parse("""<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [
<!ENTITY owl "http://www.w3.org/2002/07/owl#" >
<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
<!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#" >
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
]>
<rdf:RDF xmlns="http://www.semanticweb.org/jiba/ontologies/2017/0/test#"
xml:base="http://www.semanticweb.org/jiba/ontologies/2017/0/test"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
</rdf:RDF>
""", True)
def test_exception(self):
"""
lib-python/3/test_pyexpat.py:HandlerExceptionTest.test_exception port
without the fragile traceback inspection.
"""
import pyexpat as expat
def StartElementHandler(name, attrs):
raise RuntimeError(name)
parser = expat.ParserCreate()
parser.StartElementHandler = StartElementHandler
try:
parser.Parse(b"<a><b><c/></b></a>", 1)
self.fail()
except RuntimeError as e:
assert e.args[0] == 'a', (
"Expected RuntimeError for element 'a', but" + \
" found %r" % e.args[0]
)
class AppTestPyexpat2:
spaceconfig = dict(usemodules=['_rawffi', 'pyexpat', 'itertools',
'_socket', 'time', 'struct', 'binascii',
'select'])
def test_django_bug(self):
xml_str = '<?xml version="1.0" standalone="no"?><!DOCTYPE example SYSTEM "http://example.com/example.dtd"><root/>'
from xml.dom import pulldom
from xml.sax import handler
from xml.sax.expatreader import ExpatParser as _ExpatParser
from io import StringIO
class DefusedExpatParser(_ExpatParser):
def start_doctype_decl(self, name, sysid, pubid, has_internal_subset):
raise DTDForbidden(name, sysid, pubid)
def external_entity_ref_handler(self, context, base, sysid, pubid):
raise ExternalReferenceForbidden(context, base, sysid, pubid)
def reset(self):
_ExpatParser.reset(self)
parser = self._parser
parser.StartDoctypeDeclHandler = self.start_doctype_decl
parser.ExternalEntityRefHandler = self.external_entity_ref_handler
class DTDForbidden(ValueError):
pass
class ExternalReferenceForbidden(ValueError):
pass
stream = pulldom.parse(StringIO(xml_str), DefusedExpatParser())
try:
for event, node in stream:
print(event, node)
except DTDForbidden:
pass
else:
raise Exception("should raise DTDForbidden")
|
