forked from pallets/werkzeug
/
test_wrappers.py
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/
test_wrappers.py
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import contextlib
import json
import os
from datetime import datetime
from datetime import timedelta
from datetime import timezone
from io import BytesIO
import pytest
from werkzeug import Response
from werkzeug import wrappers
from werkzeug.datastructures import Accept
from werkzeug.datastructures import CharsetAccept
from werkzeug.datastructures import CombinedMultiDict
from werkzeug.datastructures import Headers
from werkzeug.datastructures import ImmutableList
from werkzeug.datastructures import ImmutableMultiDict
from werkzeug.datastructures import ImmutableOrderedMultiDict
from werkzeug.datastructures import LanguageAccept
from werkzeug.datastructures import MIMEAccept
from werkzeug.datastructures import MultiDict
from werkzeug.exceptions import BadRequest
from werkzeug.exceptions import RequestedRangeNotSatisfiable
from werkzeug.exceptions import SecurityError
from werkzeug.http import COEP
from werkzeug.http import COOP
from werkzeug.http import generate_etag
from werkzeug.test import Client
from werkzeug.test import create_environ
from werkzeug.test import run_wsgi_app
from werkzeug.wrappers.cors import CORSRequestMixin
from werkzeug.wrappers.cors import CORSResponseMixin
from werkzeug.wrappers.json import JSONMixin
from werkzeug.wsgi import LimitedStream
from werkzeug.wsgi import wrap_file
@wrappers.Request.application
def request_demo_app(request):
assert "werkzeug.request" in request.environ
return Response()
def assert_environ(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():
client = Client(request_demo_app)
# get requests
response = client.get("/?foo=bar&foo=hehe")
request = response.request
assert request.args == MultiDict([("foo", "bar"), ("foo", "hehe")])
assert request.form == MultiDict()
assert request.data == b""
assert_environ(request.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",
)
request = response.request
assert request.args == MultiDict([("blub", "blah")])
assert request.form == MultiDict([("foo", "blub hehe"), ("blah", "42")])
assert request.data == b""
# currently we do not guarantee that the values are ordered correctly
# for post data.
# assert response['form_as_list'] == [('foo', ['blub hehe']), ('blah', ['42'])]
assert_environ(request.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",
)
request = response.request
assert request.args == MultiDict([("blub", "blah")])
assert request.form == MultiDict([("foo", "blub hehe"), ("blah", "42")])
assert request.data == b""
assert_environ(request.environ, "PATCH")
# post requests with json data
json = b'{"foo": "bar", "blub": "blah"}'
response = client.post("/?a=b", data=json, content_type="application/json")
request = response.request
assert request.data == json
assert request.args == MultiDict([("a", "b")])
assert request.form == MultiDict()
def test_query_string_is_bytes():
req = wrappers.Request.from_values("/?foo=%2f")
assert req.query_string == b"foo=%2f"
def test_request_repr():
req = wrappers.Request.from_values("/foobar")
assert "<Request 'http://localhost/foobar' [GET]>" == repr(req)
req = wrappers.Request.from_values("/привет")
assert "<Request 'http://localhost/привет' [GET]>" == repr(req)
def test_access_route():
req = wrappers.Request.from_values(
headers={"X-Forwarded-For": "192.168.1.2, 192.168.1.1"},
environ_base={"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(environ_base={"REMOTE_ADDR": "192.168.1.3"})
assert list(req.access_route) == ["192.168.1.3"]
def test_url_request_descriptors():
req = wrappers.Request.from_values("/bar?foo=baz", "http://example.com/test")
assert req.path == "/bar"
assert req.full_path == "/bar?foo=baz"
assert req.script_root == "/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_url_request_descriptors_query_quoting():
next = "http%3A%2F%2Fwww.example.com%2F%3Fnext%3D%2Fbaz%23my%3Dhash"
req = wrappers.Request.from_values(f"/bar?next={next}", "http://example.com/")
assert req.path == "/bar"
assert req.full_path == f"/bar?next={next}"
assert req.url == f"http://example.com/bar?next={next}"
def test_url_request_descriptors_hosts():
req = wrappers.Request.from_values("/bar?foo=baz", "http://example.com/test")
req.trusted_hosts = ["example.com"]
assert req.path == "/bar"
assert req.full_path == "/bar?foo=baz"
assert req.script_root == "/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"
req = wrappers.Request.from_values("/bar?foo=baz", "http://example.com/test")
req.trusted_hosts = ["example.org"]
pytest.raises(SecurityError, lambda: req.url)
pytest.raises(SecurityError, lambda: req.base_url)
pytest.raises(SecurityError, lambda: req.url_root)
pytest.raises(SecurityError, lambda: req.host_url)
pytest.raises(SecurityError, lambda: req.host)
def test_authorization():
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_authorization_with_unicode():
request = wrappers.Request.from_values(
headers={"Authorization": "Basic 0YDRg9GB0YHQutC40IE60JHRg9C60LLRiw=="}
)
a = request.authorization
assert a.type == "basic"
assert a.username == "русскиЁ"
assert a.password == "Буквы"
def test_request_application():
@wrappers.Request.application
def application(request):
return wrappers.Response("Hello World!")
@wrappers.Request.application
def failing_application(request):
raise BadRequest()
resp = wrappers.Response.from_app(application, create_environ())
assert resp.data == b"Hello World!"
assert resp.status_code == 200
resp = wrappers.Response.from_app(failing_application, create_environ())
assert b"Bad Request" in resp.data
assert resp.status_code == 400
def test_request_access_control():
request = wrappers.Request.from_values(
headers={
"Origin": "https://palletsprojects.com",
"Access-Control-Request-Headers": "X-A, X-B",
"Access-Control-Request-Method": "PUT",
}
)
assert request.origin == "https://palletsprojects.com"
assert request.access_control_request_headers == {"X-A", "X-B"}
assert request.access_control_request_method == "PUT"
def test_response_access_control():
response = wrappers.Response("Hello World")
assert response.access_control_allow_credentials is False
response.access_control_allow_credentials = True
response.access_control_allow_headers = ["X-A", "X-B"]
assert response.headers["Access-Control-Allow-Credentials"] == "true"
assert set(response.headers["Access-Control-Allow-Headers"].split(", ")) == {
"X-A",
"X-B",
}
def test_base_response():
response = wrappers.Response("öäü")
assert response.get_data() == "öäü".encode()
# writing
response = wrappers.Response("foo")
response.stream.write("bar")
assert response.get_data() == b"foobar"
# set cookie
response = wrappers.Response()
response.set_cookie(
"foo",
value="bar",
max_age=60,
expires=0,
path="/blub",
domain="example.org",
samesite="Strict",
)
assert response.headers.to_wsgi_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; SameSite=Strict",
),
]
# delete cookie
response = wrappers.Response()
response.delete_cookie("foo")
assert response.headers.to_wsgi_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:
def __next__(self):
raise StopIteration()
def __iter__(self):
return self
def close(self):
closed.append(True)
response = wrappers.Response(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
# with statement
del closed[:]
response = wrappers.Response(Iterable())
with response:
pass
assert len(closed) == 1
@pytest.mark.parametrize(
("status_code", "expected_status"),
[
(200, "200 OK"),
(404, "404 NOT FOUND"),
(588, "588 UNKNOWN"),
(999, "999 UNKNOWN"),
],
)
def test_response_set_status_code(status_code, expected_status):
response = wrappers.Response()
response.status_code = status_code
assert response.status_code == status_code
assert response.status == expected_status
@pytest.mark.parametrize(
("status", "expected_status_code", "expected_status"),
[
("404", 404, "404 NOT FOUND"),
("588", 588, "588 UNKNOWN"),
("999", 999, "999 UNKNOWN"),
("200 OK", 200, "200 OK"),
("999 WTF", 999, "999 WTF"),
("wtf", 0, "0 wtf"),
("200 TEA POT", 200, "200 TEA POT"),
(200, 200, "200 OK"),
(400, 400, "400 BAD REQUEST"),
],
)
def test_response_set_status(status, expected_status_code, expected_status):
response = wrappers.Response()
response.status = status
assert response.status_code == expected_status_code
assert response.status == expected_status
response = wrappers.Response(status=status)
assert response.status_code == expected_status_code
assert response.status == expected_status
def test_response_init_status_empty_string():
# invalid status codes
with pytest.raises(ValueError) as info:
wrappers.Response(None, "")
assert "Empty status argument" in str(info.value)
def test_response_init_status_tuple():
with pytest.raises(TypeError) as info:
wrappers.Response(None, tuple())
assert "Invalid status argument" in str(info.value)
def test_type_forcing():
def wsgi_application(environ, start_response):
start_response("200 OK", [("Content-Type", "text/html")])
return ["Hello World!"]
base_response = wrappers.Response("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.get_data() == b"Hello World!"
assert response.content_type == "text/html"
# without env, no arbitrary conversion
pytest.raises(TypeError, SpecialResponse.force_type, wsgi_application)
def test_accept():
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",
"SERVER_NAME": "eggs",
"SERVER_PORT": "80",
}
)
assert request.accept_mimetypes == MIMEAccept(
[
("text/xml", 1),
("application/xml", 1),
("application/xhtml+xml", 1),
("image/png", 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 == Accept([("gzip", 1), ("deflate", 1)])
assert request.accept_languages == LanguageAccept([("en-us", 1), ("en", 0.5)])
request = wrappers.Request(
{"HTTP_ACCEPT": "", "SERVER_NAME": "example.org", "SERVER_PORT": "80"}
)
assert request.accept_mimetypes == MIMEAccept()
def test_etag_request():
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",
"SERVER_NAME": "eggs",
"SERVER_PORT": "80",
}
)
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")
dt = datetime(2008, 1, 22, 11, 18, 44, tzinfo=timezone.utc)
assert request.if_modified_since == dt
assert request.if_unmodified_since == dt
@pytest.mark.parametrize(
("user_agent", "browser", "platform", "version", "language"),
(
(
"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",
"3.0",
"en",
),
(
"Bot Googlebot/2.1 ( http://www.googlebot.com/bot.html)",
"google",
None,
"2.1",
None,
),
(
"Mozilla/5.0 (X11; CrOS armv7l 3701.81.0) AppleWebKit/537.31 "
"(KHTML, like Gecko) Chrome/26.0.1410.57 Safari/537.31",
"chrome",
"chromeos",
"26.0.1410.57",
None,
),
(
"Mozilla/5.0 (Windows NT 6.3; Trident/7.0; .NET4.0E; rv:11.0) like Gecko",
"msie",
"windows",
"11.0",
None,
),
(
"Mozilla/5.0 (SymbianOS/9.3; Series60/3.2 NokiaE5-00/101.003; "
"Profile/MIDP-2.1 Configuration/CLDC-1.1 ) AppleWebKit/533.4 "
"(KHTML, like Gecko) NokiaBrowser/7.3.1.35 Mobile Safari/533.4 3gpp-gba",
"safari",
"symbian",
"533.4",
None,
),
(
"Mozilla/5.0 (X11; OpenBSD amd64; rv:45.0) Gecko/20100101 Firefox/45.0",
"firefox",
"openbsd",
"45.0",
None,
),
(
"Mozilla/5.0 (X11; NetBSD amd64; rv:45.0) Gecko/20100101 Firefox/45.0",
"firefox",
"netbsd",
"45.0",
None,
),
(
"Mozilla/5.0 (X11; FreeBSD amd64) AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/48.0.2564.103 Safari/537.36",
"chrome",
"freebsd",
"48.0.2564.103",
None,
),
(
"Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Firefox/45.0",
"firefox",
"freebsd",
"45.0",
None,
),
(
"Mozilla/5.0 (X11; U; NetBSD amd64; en-US; rv:) Gecko/20150921 "
"SeaMonkey/1.1.18",
"seamonkey",
"netbsd",
"1.1.18",
"en-US",
),
(
"Mozilla/5.0 (Windows; U; Windows NT 6.2; WOW64; rv:1.8.0.7) "
"Gecko/20110321 MultiZilla/4.33.2.6a SeaMonkey/8.6.55",
"seamonkey",
"windows",
"8.6.55",
None,
),
(
"Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120427 Firefox/12.0 "
"SeaMonkey/2.9",
"seamonkey",
"linux",
"2.9",
None,
),
(
"Mozilla/5.0 (compatible; Baiduspider/2.0; "
"+http://www.baidu.com/search/spider.html)",
"baidu",
None,
"2.0",
None,
),
(
"Mozilla/5.0 (X11; SunOS i86pc; rv:38.0) Gecko/20100101 Firefox/38.0",
"firefox",
"solaris",
"38.0",
None,
),
(
"Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 "
"Iceweasel/38.7.1",
"firefox",
"linux",
"38.0",
None,
),
(
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
"(KHTML, like Gecko) Chrome/50.0.2661.75 Safari/537.36",
"chrome",
"windows",
"50.0.2661.75",
None,
),
(
"Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)",
"bing",
None,
"2.0",
None,
),
(
"Mozilla/5.0 (X11; DragonFly x86_64) AppleWebKit/537.36 "
"(KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36",
"chrome",
"dragonflybsd",
"47.0.2526.106",
None,
),
(
"Mozilla/5.0 (X11; U; DragonFly i386; de; rv:1.9.1) "
"Gecko/20090720 Firefox/3.5.1",
"firefox",
"dragonflybsd",
"3.5.1",
"de",
),
(
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36"
"(KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36 OPR/60.0.3255.95",
"opera",
"macos",
"60.0.3255.95",
None,
),
(
"Mozilla/5.0 (Linux; Android 4.4.4; Google Nexus 7 2013 - 4.4.4 - "
"API 19 - 1200x1920 Build/KTU84P) AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/51.0.2704.106 Crosswalk/21.51.546.7 Safari/537.36",
"chrome",
"android",
"51.0.2704.106",
None,
),
(
"Mozilla/5.0 (Linux; Android; motorola edge) AppleWebKit/537.36 "
"(KHTML, like Gecko) Chrome/85.0.4183.81 Mobile Safari/537.36",
"chrome",
"android",
"85.0.4183.81",
None,
),
(
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; "
".NET CLR 1.1.4322)",
"msie",
"windows",
"7.0",
None,
),
),
)
def test_user_agent(user_agent, browser, platform, version, language):
request = wrappers.Request({"HTTP_USER_AGENT": user_agent})
assert request.user_agent.to_header() == user_agent
assert str(request.user_agent) == user_agent
assert request.user_agent.string == user_agent
with pytest.deprecated_call():
assert request.user_agent.browser == browser
with pytest.deprecated_call():
assert request.user_agent.platform == platform
with pytest.deprecated_call():
assert request.user_agent.version == version
with pytest.deprecated_call():
assert request.user_agent.language == language
with pytest.deprecated_call():
assert bool(request.user_agent)
from werkzeug import useragents
with pytest.deprecated_call():
useragents.UserAgent("")
with pytest.deprecated_call(match="environ"):
useragents.UserAgent({})
with pytest.deprecated_call():
useragents.UserAgentParser()
def test_invalid_user_agent():
request = wrappers.Request(
{"HTTP_USER_AGENT": "foo", "SERVER_NAME": "eggs", "SERVER_PORT": "80"}
)
with pytest.deprecated_call():
assert not request.user_agent
def test_stream_wrapping():
class LowercasingStream:
def __init__(self, stream):
self._stream = stream
def read(self, size=-1):
return self._stream.read(size).lower()
def readline(self, size=-1):
return self._stream.readline(size).lower()
data = b"foo=Hello+World"
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
req.stream = LowercasingStream(req.stream)
assert req.form["foo"] == "hello world"
def test_data_descriptor_triggers_parsing():
data = b"foo=Hello+World"
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
assert req.data == b""
assert req.form["foo"] == "Hello World"
def test_get_data_method_parsing_caching_behavior():
data = b"foo=Hello+World"
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
# get_data() caches, so form stays available
assert req.get_data() == data
assert req.form["foo"] == "Hello World"
assert req.get_data() == data
# here we access the form data first, caching is bypassed
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
assert req.form["foo"] == "Hello World"
assert req.get_data() == b""
# Another case is uncached get data which trashes everything
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
assert req.get_data(cache=False) == data
assert req.get_data(cache=False) == b""
assert req.form == {}
# Or we can implicitly start the form parser which is similar to
# the old .data behavior
req = wrappers.Request.from_values(
"/", method="POST", data=data, content_type="application/x-www-form-urlencoded"
)
assert req.get_data(parse_form_data=True) == b""
assert req.form["foo"] == "Hello World"
def test_etag_response():
response = wrappers.Response("Hello World")
assert response.get_etag() == (None, None)
response.add_etag()
assert response.get_etag() == ("0a4d55a8d778e5022fab701977c5d840bbc486d0", False)
assert not response.cache_control
response.cache_control.must_revalidate = True
response.cache_control.max_age = 60
response.headers["Content-Length"] = len(response.get_data())
assert response.headers["Cache-Control"] in (
"must-revalidate, max-age=60",
"max-age=60, must-revalidate",
)
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 "content-length" not 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)
assert response.content_length == 999
def test_etag_response_412():
response = wrappers.Response("Hello World")
assert response.get_etag() == (None, None)
response.add_etag()
assert response.get_etag() == ("0a4d55a8d778e5022fab701977c5d840bbc486d0", False)
assert not response.cache_control
response.cache_control.must_revalidate = True
response.cache_control.max_age = 60
response.headers["Content-Length"] = len(response.get_data())
assert response.headers["Cache-Control"] in (
"must-revalidate, max-age=60",
"max-age=60, must-revalidate",
)
assert "date" not in response.headers
env = create_environ()
env.update(
{"REQUEST_METHOD": "GET", "HTTP_IF_MATCH": f"{response.get_etag()[0]}xyz"}
)
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 412
resp = wrappers.Response.from_app(response, env)
assert resp.status_code == 412
# Make sure there is a body still
assert resp.data != b""
# 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)
assert response.content_length == 999
def test_range_request_basic():
env = create_environ()
response = wrappers.Response("Hello World")
env["HTTP_RANGE"] = "bytes=0-4"
response.make_conditional(env, accept_ranges=True, complete_length=11)
assert response.status_code == 206
assert response.headers["Accept-Ranges"] == "bytes"
assert response.headers["Content-Range"] == "bytes 0-4/11"
assert response.headers["Content-Length"] == "5"
assert response.data == b"Hello"
def test_range_request_out_of_bound():
env = create_environ()
response = wrappers.Response("Hello World")
env["HTTP_RANGE"] = "bytes=6-666"
response.make_conditional(env, accept_ranges=True, complete_length=11)
assert response.status_code == 206
assert response.headers["Accept-Ranges"] == "bytes"
assert response.headers["Content-Range"] == "bytes 6-10/11"
assert response.headers["Content-Length"] == "5"
assert response.data == b"World"
def test_range_request_with_file():
env = create_environ()
resources = os.path.join(os.path.dirname(__file__), "res")
fname = os.path.join(resources, "test.txt")
with open(fname, "rb") as f:
fcontent = f.read()
with open(fname, "rb") as f:
response = wrappers.Response(wrap_file(env, f))
env["HTTP_RANGE"] = "bytes=0-0"
response.make_conditional(
env, accept_ranges=True, complete_length=len(fcontent)
)
assert response.status_code == 206
assert response.headers["Accept-Ranges"] == "bytes"
assert response.headers["Content-Range"] == f"bytes 0-0/{len(fcontent)}"
assert response.headers["Content-Length"] == "1"
assert response.data == fcontent[:1]
def test_range_request_with_complete_file():
env = create_environ()
resources = os.path.join(os.path.dirname(__file__), "res")
fname = os.path.join(resources, "test.txt")
with open(fname, "rb") as f:
fcontent = f.read()
with open(fname, "rb") as f:
fsize = os.path.getsize(fname)
response = wrappers.Response(wrap_file(env, f))
env["HTTP_RANGE"] = f"bytes=0-{fsize - 1}"
response.make_conditional(env, accept_ranges=True, complete_length=fsize)
assert response.status_code == 206
assert response.headers["Accept-Ranges"] == "bytes"
assert response.headers["Content-Range"] == f"bytes 0-{fsize - 1}/{fsize}"
assert response.headers["Content-Length"] == str(fsize)
assert response.data == fcontent
@pytest.mark.parametrize("value", [None, 0])
def test_range_request_without_complete_length(value):
env = create_environ(headers={"Range": "bytes=0-10"})
response = wrappers.Response("Hello World")
response.make_conditional(env, accept_ranges=True, complete_length=value)
assert response.status_code == 200
assert response.data == b"Hello World"
def test_invalid_range_request():
env = create_environ()
response = wrappers.Response("Hello World")
env["HTTP_RANGE"] = "bytes=-"
with pytest.raises(RequestedRangeNotSatisfiable):
response.make_conditional(env, accept_ranges=True, complete_length=11)
def test_etag_response_freezing():
response = Response("Hello World")
response.freeze()
assert response.get_etag() == (str(generate_etag(b"Hello World")), False)
def test_authenticate():
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_authenticate_quoted_qop():
# Example taken from https://github.com/pallets/werkzeug/issues/633
resp = wrappers.Response()
resp.www_authenticate.set_digest("REALM", "NONCE", qop=("auth", "auth-int"))
actual = set(f"{resp.headers['WWW-Authenticate']},".split())
expected = set('Digest nonce="NONCE", realm="REALM", qop="auth, auth-int",'.split())
assert actual == expected
resp.www_authenticate.set_digest("REALM", "NONCE", qop=("auth",))
actual = set(f"{resp.headers['WWW-Authenticate']},".split())
expected = set('Digest nonce="NONCE", realm="REALM", qop="auth",'.split())
assert actual == expected
def test_response_stream():
response = wrappers.Response()
response.stream.write("Hello ")
response.stream.write("World!")
assert response.response == ["Hello ", "World!"]
assert response.get_data() == b"Hello World!"
def test_common_response_descriptors():
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.now(timezone.utc).replace(microsecond=0)
assert response.content_length is None
response.content_length = "42"
assert response.content_length == 42
for attr in "date", "expires":
assert getattr(response, attr) is None
setattr(response, attr, now)
assert getattr(response, attr) == now
assert response.age is None
age_td = timedelta(days=1, minutes=3, seconds=5)
response.age = age_td
assert response.age == age_td
response.age = 42
assert response.age == timedelta(seconds=42)
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() == {"content-encoding"}
response.allow.update(["GET", "POST"])
assert response.headers["Allow"] == "GET, POST"