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|
# -*- coding: utf-8 -*-
"""
werkzeug.testsuite.wrappers
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Tests for the response and request objects.
:copyright: (c) 2011 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
"""
import unittest
import pickle
from StringIO import StringIO
from datetime import datetime
from werkzeug.testsuite import WerkzeugTestCase
from werkzeug import wrappers
from werkzeug.datastructures import MultiDict, ImmutableOrderedMultiDict, \
ImmutableList, ImmutableTypeConversionDict, CharsetAccept, \
CombinedMultiDict
from werkzeug.test import Client, create_environ, run_wsgi_app
class RequestTestResponse(wrappers.BaseResponse):
"""Subclass of the normal response class we use to test response
and base classes. Has some methods to test if things in the
response match.
"""
def __init__(self, response, status, headers):
wrappers.BaseResponse.__init__(self, response, status, headers)
self.body_data = pickle.loads(self.data)
def __getitem__(self, key):
return self.body_data[key]
def request_demo_app(environ, start_response):
request = wrappers.BaseRequest(environ)
assert 'werkzeug.request' in environ
start_response('200 OK', [('Content-Type', 'text/plain')])
return [pickle.dumps({
'args': request.args,
'args_as_list': request.args.lists(),
'form': request.form,
'form_as_list': request.form.lists(),
'environ': prepare_environ_pickle(request.environ),
'data': request.data
})]
def prepare_environ_pickle(environ):
result = {}
for key, value in environ.iteritems():
try:
pickle.dumps((key, value))
except Exception:
continue
result[key] = value
return result
class WrappersTestCase(WerkzeugTestCase):
def assert_environ(self, environ, method):
assert environ['REQUEST_METHOD'] == method
assert environ['PATH_INFO'] == '/'
assert environ['SCRIPT_NAME'] == ''
assert environ['SERVER_NAME'] == 'localhost'
assert environ['wsgi.version'] == (1, 0)
assert environ['wsgi.url_scheme'] == 'http'
def test_base_request(self):
client = Client(request_demo_app, RequestTestResponse)
# get requests
response = client.get('/?foo=bar&foo=hehe')
assert response['args'] == MultiDict([('foo', 'bar'), ('foo', 'hehe')])
assert response['args_as_list'] == [('foo', ['bar', 'hehe'])]
assert response['form'] == MultiDict()
assert response['form_as_list'] == []
assert response['data'] == ''
self.assert_environ(response['environ'], 'GET')
# post requests with form data
response = client.post('/?blub=blah', data='foo=blub+hehe&blah=42',
content_type='application/x-www-form-urlencoded')
assert response['args'] == MultiDict([('blub', 'blah')])
assert response['args_as_list'] == [('blub', ['blah'])]
assert response['form'] == MultiDict([('foo', 'blub hehe'), ('blah', '42')])
assert response['data'] == ''
# currently we do not guarantee that the values are ordered correctly
# for post data.
## assert response['form_as_list'] == [('foo', ['blub hehe']), ('blah', ['42'])]
self.assert_environ(response['environ'], 'POST')
# patch requests with form data
response = client.patch('/?blub=blah', data='foo=blub+hehe&blah=42',
content_type='application/x-www-form-urlencoded')
assert response['args'] == MultiDict([('blub', 'blah')])
assert response['args_as_list'] == [('blub', ['blah'])]
assert response['form'] == MultiDict([('foo', 'blub hehe'), ('blah', '42')])
assert response['data'] == ''
self.assert_environ(response['environ'], 'PATCH')
# post requests with json data
json = '{"foo": "bar", "blub": "blah"}'
response = client.post('/?a=b', data=json, content_type='application/json')
assert response['data'] == json
assert response['args'] == MultiDict([('a', 'b')])
assert response['form'] == MultiDict()
def test_access_route(self):
req = wrappers.Request.from_values(headers={
'X-Forwarded-For': '192.168.1.2, 192.168.1.1'
})
req.environ['REMOTE_ADDR'] = '192.168.1.3'
assert req.access_route == ['192.168.1.2', '192.168.1.1']
assert req.remote_addr == '192.168.1.3'
req = wrappers.Request.from_values()
req.environ['REMOTE_ADDR'] = '192.168.1.3'
assert req.access_route == ['192.168.1.3']
def test_url_request_descriptors(self):
req = wrappers.Request.from_values('/bar?foo=baz', 'http://example.com/test')
assert req.path == u'/bar'
assert req.script_root == u'/test'
assert req.url == 'http://example.com/test/bar?foo=baz'
assert req.base_url == 'http://example.com/test/bar'
assert req.url_root == 'http://example.com/test/'
assert req.host_url == 'http://example.com/'
assert req.host == 'example.com'
assert req.scheme == 'http'
req = wrappers.Request.from_values('/bar?foo=baz', 'https://example.com/test')
assert req.scheme == 'https'
def test_authorization_mixin(self):
request = wrappers.Request.from_values(headers={
'Authorization': 'Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=='
})
a = request.authorization
assert a.type == 'basic'
assert a.username == 'Aladdin'
assert a.password == 'open sesame'
def test_base_response(self):
# unicode
response = wrappers.BaseResponse(u'öäü')
assert response.data == 'öäü'
# writing
response = wrappers.Response('foo')
response.stream.write('bar')
assert response.data == 'foobar'
# set cookie
response = wrappers.BaseResponse()
response.set_cookie('foo', 'bar', 60, 0, '/blub', 'example.org', False)
assert response.headers.to_list() == [
('Content-Type', 'text/plain; charset=utf-8'),
('Set-Cookie', 'foo=bar; Domain=example.org; expires=Thu, '
'01-Jan-1970 00:00:00 GMT; Max-Age=60; Path=/blub')
]
# delete cookie
response = wrappers.BaseResponse()
response.delete_cookie('foo')
assert response.headers.to_list() == [
('Content-Type', 'text/plain; charset=utf-8'),
('Set-Cookie', 'foo=; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/')
]
# close call forwarding
closed = []
class Iterable(object):
def next(self):
raise StopIteration()
def __iter__(self):
return self
def close(self):
closed.append(True)
response = wrappers.BaseResponse(Iterable())
response.call_on_close(lambda: closed.append(True))
app_iter, status, headers = run_wsgi_app(response,
create_environ(),
buffered=True)
assert status == '200 OK'
assert ''.join(app_iter) == ''
assert len(closed) == 2
def test_response_status_codes(self):
response = wrappers.BaseResponse()
response.status_code = 404
assert response.status == '404 NOT FOUND'
response.status = '200 OK'
assert response.status_code == 200
response.status = '999 WTF'
assert response.status_code == 999
response.status_code = 588
assert response.status_code == 588
assert response.status == '588 UNKNOWN'
response.status = 'wtf'
assert response.status_code == 0
def test_type_forcing(self):
def wsgi_application(environ, start_response):
start_response('200 OK', [('Content-Type', 'text/html')])
return ['Hello World!']
base_response = wrappers.BaseResponse('Hello World!', content_type='text/html')
class SpecialResponse(wrappers.Response):
def foo(self):
return 42
# good enough for this simple application, but don't ever use that in
# real world examples!
fake_env = {}
for orig_resp in wsgi_application, base_response:
response = SpecialResponse.force_type(orig_resp, fake_env)
assert response.__class__ is SpecialResponse
assert response.foo() == 42
assert response.data == 'Hello World!'
assert response.content_type == 'text/html'
# without env, no arbitrary conversion
self.assert_raises(TypeError, SpecialResponse.force_type, wsgi_application)
def test_accept_mixin(self):
request = wrappers.Request({
'HTTP_ACCEPT': 'text/xml,application/xml,application/xhtml+xml,'
'text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5',
'HTTP_ACCEPT_CHARSET': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'HTTP_ACCEPT_ENCODING': 'gzip,deflate',
'HTTP_ACCEPT_LANGUAGE': 'en-us,en;q=0.5'
})
assert request.accept_mimetypes == CharsetAccept([
('text/xml', 1), ('image/png', 1), ('application/xml', 1),
('application/xhtml+xml', 1), ('text/html', 0.9),
('text/plain', 0.8), ('*/*', 0.5)
])
assert request.accept_charsets == CharsetAccept([
('ISO-8859-1', 1), ('utf-8', 0.7), ('*', 0.7)
])
assert request.accept_encodings == CharsetAccept([('gzip', 1), ('deflate', 1)])
assert request.accept_languages == CharsetAccept([('en-us', 1), ('en', 0.5)])
request = wrappers.Request({'HTTP_ACCEPT': ''})
assert request.accept_mimetypes == CharsetAccept()
def test_etag_request_mixin(self):
request = wrappers.Request({
'HTTP_CACHE_CONTROL': 'no-store, no-cache',
'HTTP_IF_MATCH': 'w/"foo", bar, "baz"',
'HTTP_IF_NONE_MATCH': 'w/"foo", bar, "baz"',
'HTTP_IF_MODIFIED_SINCE': 'Tue, 22 Jan 2008 11:18:44 GMT',
'HTTP_IF_UNMODIFIED_SINCE': 'Tue, 22 Jan 2008 11:18:44 GMT'
})
assert request.cache_control.no_store
assert request.cache_control.no_cache
for etags in request.if_match, request.if_none_match:
assert etags('bar')
assert etags.contains_raw('w/"foo"')
assert etags.contains_weak('foo')
assert not etags.contains('foo')
assert request.if_modified_since == datetime(2008, 1, 22, 11, 18, 44)
assert request.if_unmodified_since == datetime(2008, 1, 22, 11, 18, 44)
def test_user_agent_mixin(self):
user_agents = [
('Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.11) '
'Gecko/20071127 Firefox/2.0.0.11', 'firefox', 'macos', '2.0.0.11',
'en-US'),
('Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; de-DE) Opera 8.54',
'opera', 'windows', '8.54', 'de-DE'),
('Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420 '
'(KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3',
'safari', 'iphone', '419.3', 'en'),
('Bot Googlebot/2.1 ( http://www.googlebot.com/bot.html)',
'google', None, '2.1', None)
]
for ua, browser, platform, version, lang in user_agents:
request = wrappers.Request({'HTTP_USER_AGENT': ua})
assert request.user_agent.browser == browser
assert request.user_agent.platform == platform
assert request.user_agent.version == version
assert request.user_agent.language == lang
assert bool(request.user_agent)
assert request.user_agent.to_header() == ua
assert str(request.user_agent) == ua
request = wrappers.Request({'HTTP_USER_AGENT': 'foo'})
assert not request.user_agent
def test_etag_response_mixin(self):
response = wrappers.Response('Hello World')
assert response.get_etag() == (None, None)
response.add_etag()
assert response.get_etag() == ('b10a8db164e0754105b7a99be72e3fe5', False)
assert not response.cache_control
response.cache_control.must_revalidate = True
response.cache_control.max_age = 60
response.headers['Content-Length'] = len(response.data)
assert response.headers['Cache-Control'] == 'must-revalidate, max-age=60'
assert 'date' not in response.headers
env = create_environ()
env.update({
'REQUEST_METHOD': 'GET',
'HTTP_IF_NONE_MATCH': response.get_etag()[0]
})
response.make_conditional(env)
assert 'date' in response.headers
# after the thing is invoked by the server as wsgi application
# (we're emulating this here), there must not be any entity
# headers left and the status code would have to be 304
resp = wrappers.Response.from_app(response, env)
assert resp.status_code == 304
assert not 'content-length' in resp.headers
# make sure date is not overriden
response = wrappers.Response('Hello World')
response.date = 1337
d = response.date
response.make_conditional(env)
assert response.date == d
# make sure content length is only set if missing
response = wrappers.Response('Hello World')
response.content_length = 999
response.make_conditional(env)
self.assert_equal(response.content_length, 999)
def test_etag_response_mixin_freezing(self):
class WithFreeze(wrappers.ETagResponseMixin, wrappers.BaseResponse):
pass
class WithoutFreeze(wrappers.BaseResponse, wrappers.ETagResponseMixin):
pass
response = WithFreeze('Hello World')
response.freeze()
assert response.get_etag() == (wrappers.generate_etag('Hello World'), False)
response = WithoutFreeze('Hello World')
response.freeze()
assert response.get_etag() == (None, None)
response = wrappers.Response('Hello World')
response.freeze()
assert response.get_etag() == (None, None)
def test_authenticate_mixin(self):
resp = wrappers.Response()
resp.www_authenticate.type = 'basic'
resp.www_authenticate.realm = 'Testing'
assert resp.headers['WWW-Authenticate'] == 'Basic realm="Testing"'
resp.www_authenticate.realm = None
resp.www_authenticate.type = None
assert 'WWW-Authenticate' not in resp.headers
def test_response_stream_mixin(self):
response = wrappers.Response()
response.stream.write('Hello ')
response.stream.write('World!')
assert response.response == ['Hello ', 'World!']
assert response.data == 'Hello World!'
def test_common_response_descriptors_mixin(self):
response = wrappers.Response()
response.mimetype = 'text/html'
assert response.mimetype == 'text/html'
assert response.content_type == 'text/html; charset=utf-8'
assert response.mimetype_params == {'charset': 'utf-8'}
response.mimetype_params['x-foo'] = 'yep'
del response.mimetype_params['charset']
assert response.content_type == 'text/html; x-foo=yep'
now = datetime.utcnow().replace(microsecond=0)
assert response.content_length is None
response.content_length = '42'
assert response.content_length == 42
for attr in 'date', 'age', 'expires':
assert getattr(response, attr) is None
setattr(response, attr, now)
assert getattr(response, attr) == now
assert response.retry_after is None
response.retry_after = now
assert response.retry_after == now
assert not response.vary
response.vary.add('Cookie')
response.vary.add('Content-Language')
assert 'cookie' in response.vary
assert response.vary.to_header() == 'Cookie, Content-Language'
response.headers['Vary'] = 'Content-Encoding'
assert response.vary.as_set() == set(['content-encoding'])
response.allow.update(['GET', 'POST'])
assert response.headers['Allow'] == 'GET, POST'
response.content_language.add('en-US')
response.content_language.add('fr')
assert response.headers['Content-Language'] == 'en-US, fr'
def test_common_request_descriptors_mixin(self):
request = wrappers.Request.from_values(content_type='text/html; charset=utf-8',
content_length='23',
headers={
'Referer': 'http://www.example.com/',
'Date': 'Sat, 28 Feb 2009 19:04:35 GMT',
'Max-Forwards': '10',
'Pragma': 'no-cache'
})
assert request.content_type == 'text/html; charset=utf-8'
assert request.mimetype == 'text/html'
assert request.mimetype_params == {'charset': 'utf-8'}
assert request.content_length == 23
assert request.referrer == 'http://www.example.com/'
assert request.date == datetime(2009, 2, 28, 19, 4, 35)
assert request.max_forwards == 10
assert 'no-cache' in request.pragma
def test_shallow_mode(self):
"""Request object shallow mode"""
request = wrappers.Request({'QUERY_STRING': 'foo=bar'}, shallow=True)
assert request.args['foo'] == 'bar'
self.assert_raises(RuntimeError, lambda: request.form['foo'])
def test_form_parsing_failed(self):
data = (
'--blah\r\n'
)
data = wrappers.Request.from_values(input_stream=StringIO(data),
content_length=len(data),
content_type='multipart/form-data; boundary=foo',
method='POST')
assert not data.files
assert not data.form
def test_url_charset_reflection(self):
req = wrappers.Request.from_values()
req.charset = 'utf-7'
assert req.url_charset == 'utf-7'
def test_response_streamed(self):
r = wrappers.Response()
assert not r.is_streamed
r = wrappers.Response("Hello World")
assert not r.is_streamed
r = wrappers.Response(["foo", "bar"])
assert not r.is_streamed
def gen():
if 0:
yield None
r = wrappers.Response(gen())
assert r.is_streamed
def test_response_freeze(self):
def generate():
yield "foo"
yield "bar"
resp = wrappers.Response(generate())
resp.freeze()
assert resp.response == ['foo', 'bar']
assert resp.headers['content-length'] == '6'
def test_other_method_payload(self):
data = 'Hello World'
req = wrappers.Request.from_values(input_stream=StringIO(data),
content_length=len(data),
content_type='text/plain',
method='WHAT_THE_FUCK')
assert req.data == data
assert isinstance(req.stream, wrappers.LimitedStream)
def test_urlfication(self):
resp = wrappers.Response()
resp.headers['Location'] = u'http://üser:pässword@☃.net/påth'
resp.headers['Content-Location'] = u'http://☃.net/'
headers = resp.get_wsgi_headers(create_environ())
assert headers['location'] == \
'http://%C3%BCser:p%C3%A4ssword@xn--n3h.net/p%C3%A5th'
assert headers['content-location'] == 'http://xn--n3h.net/'
def test_new_response_iterator_behavior(self):
req = wrappers.Request.from_values()
resp = wrappers.Response(u'Hello Wörld!')
def get_content_length(resp):
headers = wrappers.Headers.linked(resp.get_wsgi_headers(req.environ))
return headers.get('content-length', type=int)
def generate_items():
yield "Hello "
yield u"Wörld!"
# werkzeug encodes when set to `data` now, which happens
# if a string is passed to the response object.
assert resp.response == [u'Hello Wörld!'.encode('utf-8')]
assert resp.data == u'Hello Wörld!'.encode('utf-8')
assert get_content_length(resp) == 13
assert not resp.is_streamed
assert resp.is_sequence
# try the same for manual assignment
resp.data = u'Wörd'
assert resp.response == [u'Wörd'.encode('utf-8')]
assert resp.data == u'Wörd'.encode('utf-8')
assert get_content_length(resp) == 5
assert not resp.is_streamed
assert resp.is_sequence
# automatic generator sequence conversion
resp.response = generate_items()
assert resp.is_streamed
assert not resp.is_sequence
assert resp.data == u'Hello Wörld!'.encode('utf-8')
assert resp.response == ['Hello ', u'Wörld!'.encode('utf-8')]
assert not resp.is_streamed
assert resp.is_sequence
# automatic generator sequence conversion
resp.response = generate_items()
resp.implicit_sequence_conversion = False
assert resp.is_streamed
assert not resp.is_sequence
self.assert_raises(RuntimeError, lambda: resp.data)
resp.make_sequence()
assert resp.data == u'Hello Wörld!'.encode('utf-8')
assert resp.response == ['Hello ', u'Wörld!'.encode('utf-8')]
assert not resp.is_streamed
assert resp.is_sequence
# stream makes it a list no matter how the conversion is set
for val in True, False:
resp.implicit_sequence_conversion = val
resp.response = ("foo", "bar")
assert resp.is_sequence
resp.stream.write('baz')
assert resp.response == ['foo', 'bar', 'baz']
def test_form_data_ordering(self):
class MyRequest(wrappers.Request):
parameter_storage_class = ImmutableOrderedMultiDict
req = MyRequest.from_values('/?foo=1&bar=0&foo=3')
assert list(req.args) == ['foo', 'bar']
assert req.args.items(multi=True) == [
('foo', '1'),
('bar', '0'),
('foo', '3')
]
assert isinstance(req.args, ImmutableOrderedMultiDict)
assert isinstance(req.values, CombinedMultiDict)
assert req.values['foo'] == '1'
assert req.values.getlist('foo') == ['1', '3']
def test_storage_classes(self):
class MyRequest(wrappers.Request):
dict_storage_class = dict
list_storage_class = list
parameter_storage_class = dict
req = MyRequest.from_values('/?foo=baz', headers={
'Cookie': 'foo=bar'
})
assert type(req.cookies) is dict
assert req.cookies == {'foo': 'bar'}
assert type(req.access_route) is list
assert type(req.args) is dict
assert type(req.values) is CombinedMultiDict
assert req.values['foo'] == 'baz'
req = wrappers.Request.from_values(headers={
'Cookie': 'foo=bar'
})
assert type(req.cookies) is ImmutableTypeConversionDict
assert req.cookies == {'foo': 'bar'}
assert type(req.access_route) is ImmutableList
MyRequest.list_storage_class = tuple
req = MyRequest.from_values()
assert type(req.access_route) is tuple
def test_response_headers_passthrough(self):
headers = wrappers.Headers()
resp = wrappers.Response(headers=headers)
assert resp.headers is headers
def test_response_304_no_content_length(self):
resp = wrappers.Response('Test', status=304)
env = create_environ()
assert 'content-length' not in resp.get_wsgi_headers(env)
def test_ranges(self):
# basic range stuff
req = wrappers.Request.from_values()
assert req.range is None
req = wrappers.Request.from_values(headers={'Range': 'bytes=0-499'})
assert req.range.ranges == [(0, 500)]
resp = wrappers.Response()
resp.content_range = req.range.make_content_range(1000)
assert resp.content_range.units == 'bytes'
assert resp.content_range.start == 0
assert resp.content_range.stop == 500
assert resp.content_range.length == 1000
assert resp.headers['Content-Range'] == 'bytes 0-499/1000'
resp.content_range.unset()
assert 'Content-Range' not in resp.headers
resp.headers['Content-Range'] = 'bytes 0-499/1000'
assert resp.content_range.units == 'bytes'
assert resp.content_range.start == 0
assert resp.content_range.stop == 500
assert resp.content_range.length == 1000
def test_auto_content_length(self):
resp = wrappers.Response('Hello World!')
assert resp.content_length == 12
resp = wrappers.Response(['Hello World!'])
assert resp.content_length is None
assert resp.get_wsgi_headers({})['Content-Length'] == '12'
def test_disabled_auto_content_length(self):
class MyResponse(wrappers.Response):
automatically_set_content_length = False
resp = MyResponse('Hello World!')
self.assert_(resp.content_length is None)
resp = MyResponse(['Hello World!'])
self.assert_(resp.content_length is None)
self.assert_('Content-Length' not in resp.get_wsgi_headers({}))
def test_location_header_autocorrect(self):
env = create_environ()
class MyResponse(wrappers.Response):
autocorrect_location_header = False
resp = MyResponse('Hello World!')
resp.headers['Location'] = '/test'
self.assert_equal(resp.get_wsgi_headers(env)['Location'], '/test')
resp = wrappers.Response('Hello World!')
resp.headers['Location'] = '/test'
self.assert_equal(resp.get_wsgi_headers(env)['Location'], 'http://localhost/test')
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(WrappersTestCase))
return suite
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