Revision 070fae6d0ff49e63bfd5f2bdc66f8eb1df3b6557 authored by Christian Heimes on 02 July 2019, 18:39:42 UTC, committed by Ned Deily on 02 July 2019, 18:42:08 UTC
ssl.match_hostname() no longer accepts IPv4 addresses with additional text after the address and only quad-dotted notation without trailing whitespaces. Some inet_aton() implementations ignore whitespace and all data after whitespace, e.g. '127.0.0.1 whatever'. Short notations like '127.1' for '127.0.0.1' were already filtered out. The bug was initially found by Dominik Czarnota and reported by Paul Kehrer. Signed-off-by: Christian Heimes <christian@python.org> https://bugs.python.org/issue37463
1 parent dcc0eb3
test_wsgiref.py
from unittest import mock
from test import support
from test.test_httpservers import NoLogRequestHandler
from unittest import TestCase
from wsgiref.util import setup_testing_defaults
from wsgiref.headers import Headers
from wsgiref.handlers import BaseHandler, BaseCGIHandler, SimpleHandler
from wsgiref import util
from wsgiref.validate import validator
from wsgiref.simple_server import WSGIServer, WSGIRequestHandler
from wsgiref.simple_server import make_server
from http.client import HTTPConnection
from io import StringIO, BytesIO, BufferedReader
from socketserver import BaseServer
from platform import python_implementation
import os
import re
import signal
import sys
import threading
import unittest
class MockServer(WSGIServer):
"""Non-socket HTTP server"""
def __init__(self, server_address, RequestHandlerClass):
BaseServer.__init__(self, server_address, RequestHandlerClass)
self.server_bind()
def server_bind(self):
host, port = self.server_address
self.server_name = host
self.server_port = port
self.setup_environ()
class MockHandler(WSGIRequestHandler):
"""Non-socket HTTP handler"""
def setup(self):
self.connection = self.request
self.rfile, self.wfile = self.connection
def finish(self):
pass
def hello_app(environ,start_response):
start_response("200 OK", [
('Content-Type','text/plain'),
('Date','Mon, 05 Jun 2006 18:49:54 GMT')
])
return [b"Hello, world!"]
def header_app(environ, start_response):
start_response("200 OK", [
('Content-Type', 'text/plain'),
('Date', 'Mon, 05 Jun 2006 18:49:54 GMT')
])
return [';'.join([
environ['HTTP_X_TEST_HEADER'], environ['QUERY_STRING'],
environ['PATH_INFO']
]).encode('iso-8859-1')]
def run_amock(app=hello_app, data=b"GET / HTTP/1.0\n\n"):
server = make_server("", 80, app, MockServer, MockHandler)
inp = BufferedReader(BytesIO(data))
out = BytesIO()
olderr = sys.stderr
err = sys.stderr = StringIO()
try:
server.finish_request((inp, out), ("127.0.0.1",8888))
finally:
sys.stderr = olderr
return out.getvalue(), err.getvalue()
def compare_generic_iter(make_it,match):
"""Utility to compare a generic 2.1/2.2+ iterator with an iterable
If running under Python 2.2+, this tests the iterator using iter()/next(),
as well as __getitem__. 'make_it' must be a function returning a fresh
iterator to be tested (since this may test the iterator twice)."""
it = make_it()
n = 0
for item in match:
if not it[n]==item: raise AssertionError
n+=1
try:
it[n]
except IndexError:
pass
else:
raise AssertionError("Too many items from __getitem__",it)
try:
iter, StopIteration
except NameError:
pass
else:
# Only test iter mode under 2.2+
it = make_it()
if not iter(it) is it: raise AssertionError
for item in match:
if not next(it) == item: raise AssertionError
try:
next(it)
except StopIteration:
pass
else:
raise AssertionError("Too many items from .__next__()", it)
class IntegrationTests(TestCase):
def check_hello(self, out, has_length=True):
pyver = (python_implementation() + "/" +
sys.version.split()[0])
self.assertEqual(out,
("HTTP/1.0 200 OK\r\n"
"Server: WSGIServer/0.2 " + pyver +"\r\n"
"Content-Type: text/plain\r\n"
"Date: Mon, 05 Jun 2006 18:49:54 GMT\r\n" +
(has_length and "Content-Length: 13\r\n" or "") +
"\r\n"
"Hello, world!").encode("iso-8859-1")
)
def test_plain_hello(self):
out, err = run_amock()
self.check_hello(out)
def test_environ(self):
request = (
b"GET /p%61th/?query=test HTTP/1.0\n"
b"X-Test-Header: Python test \n"
b"X-Test-Header: Python test 2\n"
b"Content-Length: 0\n\n"
)
out, err = run_amock(header_app, request)
self.assertEqual(
out.splitlines()[-1],
b"Python test,Python test 2;query=test;/path/"
)
def test_request_length(self):
out, err = run_amock(data=b"GET " + (b"x" * 65537) + b" HTTP/1.0\n\n")
self.assertEqual(out.splitlines()[0],
b"HTTP/1.0 414 Request-URI Too Long")
def test_validated_hello(self):
out, err = run_amock(validator(hello_app))
# the middleware doesn't support len(), so content-length isn't there
self.check_hello(out, has_length=False)
def test_simple_validation_error(self):
def bad_app(environ,start_response):
start_response("200 OK", ('Content-Type','text/plain'))
return ["Hello, world!"]
out, err = run_amock(validator(bad_app))
self.assertTrue(out.endswith(
b"A server error occurred. Please contact the administrator."
))
self.assertEqual(
err.splitlines()[-2],
"AssertionError: Headers (('Content-Type', 'text/plain')) must"
" be of type list: <class 'tuple'>"
)
def test_status_validation_errors(self):
def create_bad_app(status):
def bad_app(environ, start_response):
start_response(status, [("Content-Type", "text/plain; charset=utf-8")])
return [b"Hello, world!"]
return bad_app
tests = [
('200', 'AssertionError: Status must be at least 4 characters'),
('20X OK', 'AssertionError: Status message must begin w/3-digit code'),
('200OK', 'AssertionError: Status message must have a space after code'),
]
for status, exc_message in tests:
with self.subTest(status=status):
out, err = run_amock(create_bad_app(status))
self.assertTrue(out.endswith(
b"A server error occurred. Please contact the administrator."
))
self.assertEqual(err.splitlines()[-2], exc_message)
def test_wsgi_input(self):
def bad_app(e,s):
e["wsgi.input"].read()
s("200 OK", [("Content-Type", "text/plain; charset=utf-8")])
return [b"data"]
out, err = run_amock(validator(bad_app))
self.assertTrue(out.endswith(
b"A server error occurred. Please contact the administrator."
))
self.assertEqual(
err.splitlines()[-2], "AssertionError"
)
def test_bytes_validation(self):
def app(e, s):
s("200 OK", [
("Content-Type", "text/plain; charset=utf-8"),
("Date", "Wed, 24 Dec 2008 13:29:32 GMT"),
])
return [b"data"]
out, err = run_amock(validator(app))
self.assertTrue(err.endswith('"GET / HTTP/1.0" 200 4\n'))
ver = sys.version.split()[0].encode('ascii')
py = python_implementation().encode('ascii')
pyver = py + b"/" + ver
self.assertEqual(
b"HTTP/1.0 200 OK\r\n"
b"Server: WSGIServer/0.2 "+ pyver + b"\r\n"
b"Content-Type: text/plain; charset=utf-8\r\n"
b"Date: Wed, 24 Dec 2008 13:29:32 GMT\r\n"
b"\r\n"
b"data",
out)
def test_cp1252_url(self):
def app(e, s):
s("200 OK", [
("Content-Type", "text/plain"),
("Date", "Wed, 24 Dec 2008 13:29:32 GMT"),
])
# PEP3333 says environ variables are decoded as latin1.
# Encode as latin1 to get original bytes
return [e["PATH_INFO"].encode("latin1")]
out, err = run_amock(
validator(app), data=b"GET /\x80%80 HTTP/1.0")
self.assertEqual(
[
b"HTTP/1.0 200 OK",
mock.ANY,
b"Content-Type: text/plain",
b"Date: Wed, 24 Dec 2008 13:29:32 GMT",
b"",
b"/\x80\x80",
],
out.splitlines())
def test_interrupted_write(self):
# BaseHandler._write() and _flush() have to write all data, even if
# it takes multiple send() calls. Test this by interrupting a send()
# call with a Unix signal.
pthread_kill = support.get_attribute(signal, "pthread_kill")
def app(environ, start_response):
start_response("200 OK", [])
return [b'\0' * support.SOCK_MAX_SIZE]
class WsgiHandler(NoLogRequestHandler, WSGIRequestHandler):
pass
server = make_server(support.HOST, 0, app, handler_class=WsgiHandler)
self.addCleanup(server.server_close)
interrupted = threading.Event()
def signal_handler(signum, frame):
interrupted.set()
original = signal.signal(signal.SIGUSR1, signal_handler)
self.addCleanup(signal.signal, signal.SIGUSR1, original)
received = None
main_thread = threading.get_ident()
def run_client():
http = HTTPConnection(*server.server_address)
http.request("GET", "/")
with http.getresponse() as response:
response.read(100)
# The main thread should now be blocking in a send() system
# call. But in theory, it could get interrupted by other
# signals, and then retried. So keep sending the signal in a
# loop, in case an earlier signal happens to be delivered at
# an inconvenient moment.
while True:
pthread_kill(main_thread, signal.SIGUSR1)
if interrupted.wait(timeout=float(1)):
break
nonlocal received
received = len(response.read())
http.close()
background = threading.Thread(target=run_client)
background.start()
server.handle_request()
background.join()
self.assertEqual(received, support.SOCK_MAX_SIZE - 100)
class UtilityTests(TestCase):
def checkShift(self,sn_in,pi_in,part,sn_out,pi_out):
env = {'SCRIPT_NAME':sn_in,'PATH_INFO':pi_in}
util.setup_testing_defaults(env)
self.assertEqual(util.shift_path_info(env),part)
self.assertEqual(env['PATH_INFO'],pi_out)
self.assertEqual(env['SCRIPT_NAME'],sn_out)
return env
def checkDefault(self, key, value, alt=None):
# Check defaulting when empty
env = {}
util.setup_testing_defaults(env)
if isinstance(value, StringIO):
self.assertIsInstance(env[key], StringIO)
elif isinstance(value,BytesIO):
self.assertIsInstance(env[key],BytesIO)
else:
self.assertEqual(env[key], value)
# Check existing value
env = {key:alt}
util.setup_testing_defaults(env)
self.assertIs(env[key], alt)
def checkCrossDefault(self,key,value,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(kw[key],value)
def checkAppURI(self,uri,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(util.application_uri(kw),uri)
def checkReqURI(self,uri,query=1,**kw):
util.setup_testing_defaults(kw)
self.assertEqual(util.request_uri(kw,query),uri)
def checkFW(self,text,size,match):
def make_it(text=text,size=size):
return util.FileWrapper(StringIO(text),size)
compare_generic_iter(make_it,match)
it = make_it()
self.assertFalse(it.filelike.closed)
for item in it:
pass
self.assertFalse(it.filelike.closed)
it.close()
self.assertTrue(it.filelike.closed)
def testSimpleShifts(self):
self.checkShift('','/', '', '/', '')
self.checkShift('','/x', 'x', '/x', '')
self.checkShift('/','', None, '/', '')
self.checkShift('/a','/x/y', 'x', '/a/x', '/y')
self.checkShift('/a','/x/', 'x', '/a/x', '/')
def testNormalizedShifts(self):
self.checkShift('/a/b', '/../y', '..', '/a', '/y')
self.checkShift('', '/../y', '..', '', '/y')
self.checkShift('/a/b', '//y', 'y', '/a/b/y', '')
self.checkShift('/a/b', '//y/', 'y', '/a/b/y', '/')
self.checkShift('/a/b', '/./y', 'y', '/a/b/y', '')
self.checkShift('/a/b', '/./y/', 'y', '/a/b/y', '/')
self.checkShift('/a/b', '///./..//y/.//', '..', '/a', '/y/')
self.checkShift('/a/b', '///', '', '/a/b/', '')
self.checkShift('/a/b', '/.//', '', '/a/b/', '')
self.checkShift('/a/b', '/x//', 'x', '/a/b/x', '/')
self.checkShift('/a/b', '/.', None, '/a/b', '')
def testDefaults(self):
for key, value in [
('SERVER_NAME','127.0.0.1'),
('SERVER_PORT', '80'),
('SERVER_PROTOCOL','HTTP/1.0'),
('HTTP_HOST','127.0.0.1'),
('REQUEST_METHOD','GET'),
('SCRIPT_NAME',''),
('PATH_INFO','/'),
('wsgi.version', (1,0)),
('wsgi.run_once', 0),
('wsgi.multithread', 0),
('wsgi.multiprocess', 0),
('wsgi.input', BytesIO()),
('wsgi.errors', StringIO()),
('wsgi.url_scheme','http'),
]:
self.checkDefault(key,value)
def testCrossDefaults(self):
self.checkCrossDefault('HTTP_HOST',"foo.bar",SERVER_NAME="foo.bar")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="on")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="1")
self.checkCrossDefault('wsgi.url_scheme',"https",HTTPS="yes")
self.checkCrossDefault('wsgi.url_scheme',"http",HTTPS="foo")
self.checkCrossDefault('SERVER_PORT',"80",HTTPS="foo")
self.checkCrossDefault('SERVER_PORT',"443",HTTPS="on")
def testGuessScheme(self):
self.assertEqual(util.guess_scheme({}), "http")
self.assertEqual(util.guess_scheme({'HTTPS':"foo"}), "http")
self.assertEqual(util.guess_scheme({'HTTPS':"on"}), "https")
self.assertEqual(util.guess_scheme({'HTTPS':"yes"}), "https")
self.assertEqual(util.guess_scheme({'HTTPS':"1"}), "https")
def testAppURIs(self):
self.checkAppURI("http://127.0.0.1/")
self.checkAppURI("http://127.0.0.1/spam", SCRIPT_NAME="/spam")
self.checkAppURI("http://127.0.0.1/sp%E4m", SCRIPT_NAME="/sp\xe4m")
self.checkAppURI("http://spam.example.com:2071/",
HTTP_HOST="spam.example.com:2071", SERVER_PORT="2071")
self.checkAppURI("http://spam.example.com/",
SERVER_NAME="spam.example.com")
self.checkAppURI("http://127.0.0.1/",
HTTP_HOST="127.0.0.1", SERVER_NAME="spam.example.com")
self.checkAppURI("https://127.0.0.1/", HTTPS="on")
self.checkAppURI("http://127.0.0.1:8000/", SERVER_PORT="8000",
HTTP_HOST=None)
def testReqURIs(self):
self.checkReqURI("http://127.0.0.1/")
self.checkReqURI("http://127.0.0.1/spam", SCRIPT_NAME="/spam")
self.checkReqURI("http://127.0.0.1/sp%E4m", SCRIPT_NAME="/sp\xe4m")
self.checkReqURI("http://127.0.0.1/spammity/spam",
SCRIPT_NAME="/spammity", PATH_INFO="/spam")
self.checkReqURI("http://127.0.0.1/spammity/sp%E4m",
SCRIPT_NAME="/spammity", PATH_INFO="/sp\xe4m")
self.checkReqURI("http://127.0.0.1/spammity/spam;ham",
SCRIPT_NAME="/spammity", PATH_INFO="/spam;ham")
self.checkReqURI("http://127.0.0.1/spammity/spam;cookie=1234,5678",
SCRIPT_NAME="/spammity", PATH_INFO="/spam;cookie=1234,5678")
self.checkReqURI("http://127.0.0.1/spammity/spam?say=ni",
SCRIPT_NAME="/spammity", PATH_INFO="/spam",QUERY_STRING="say=ni")
self.checkReqURI("http://127.0.0.1/spammity/spam?s%E4y=ni",
SCRIPT_NAME="/spammity", PATH_INFO="/spam",QUERY_STRING="s%E4y=ni")
self.checkReqURI("http://127.0.0.1/spammity/spam", 0,
SCRIPT_NAME="/spammity", PATH_INFO="/spam",QUERY_STRING="say=ni")
def testFileWrapper(self):
self.checkFW("xyz"*50, 120, ["xyz"*40,"xyz"*10])
def testHopByHop(self):
for hop in (
"Connection Keep-Alive Proxy-Authenticate Proxy-Authorization "
"TE Trailers Transfer-Encoding Upgrade"
).split():
for alt in hop, hop.title(), hop.upper(), hop.lower():
self.assertTrue(util.is_hop_by_hop(alt))
# Not comprehensive, just a few random header names
for hop in (
"Accept Cache-Control Date Pragma Trailer Via Warning"
).split():
for alt in hop, hop.title(), hop.upper(), hop.lower():
self.assertFalse(util.is_hop_by_hop(alt))
class HeaderTests(TestCase):
def testMappingInterface(self):
test = [('x','y')]
self.assertEqual(len(Headers()), 0)
self.assertEqual(len(Headers([])),0)
self.assertEqual(len(Headers(test[:])),1)
self.assertEqual(Headers(test[:]).keys(), ['x'])
self.assertEqual(Headers(test[:]).values(), ['y'])
self.assertEqual(Headers(test[:]).items(), test)
self.assertIsNot(Headers(test).items(), test) # must be copy!
h = Headers()
del h['foo'] # should not raise an error
h['Foo'] = 'bar'
for m in h.__contains__, h.get, h.get_all, h.__getitem__:
self.assertTrue(m('foo'))
self.assertTrue(m('Foo'))
self.assertTrue(m('FOO'))
self.assertFalse(m('bar'))
self.assertEqual(h['foo'],'bar')
h['foo'] = 'baz'
self.assertEqual(h['FOO'],'baz')
self.assertEqual(h.get_all('foo'),['baz'])
self.assertEqual(h.get("foo","whee"), "baz")
self.assertEqual(h.get("zoo","whee"), "whee")
self.assertEqual(h.setdefault("foo","whee"), "baz")
self.assertEqual(h.setdefault("zoo","whee"), "whee")
self.assertEqual(h["foo"],"baz")
self.assertEqual(h["zoo"],"whee")
def testRequireList(self):
self.assertRaises(TypeError, Headers, "foo")
def testExtras(self):
h = Headers()
self.assertEqual(str(h),'\r\n')
h.add_header('foo','bar',baz="spam")
self.assertEqual(h['foo'], 'bar; baz="spam"')
self.assertEqual(str(h),'foo: bar; baz="spam"\r\n\r\n')
h.add_header('Foo','bar',cheese=None)
self.assertEqual(h.get_all('foo'),
['bar; baz="spam"', 'bar; cheese'])
self.assertEqual(str(h),
'foo: bar; baz="spam"\r\n'
'Foo: bar; cheese\r\n'
'\r\n'
)
class ErrorHandler(BaseCGIHandler):
"""Simple handler subclass for testing BaseHandler"""
# BaseHandler records the OS environment at import time, but envvars
# might have been changed later by other tests, which trips up
# HandlerTests.testEnviron().
os_environ = dict(os.environ.items())
def __init__(self,**kw):
setup_testing_defaults(kw)
BaseCGIHandler.__init__(
self, BytesIO(), BytesIO(), StringIO(), kw,
multithread=True, multiprocess=True
)
class TestHandler(ErrorHandler):
"""Simple handler subclass for testing BaseHandler, w/error passthru"""
def handle_error(self):
raise # for testing, we want to see what's happening
class HandlerTests(TestCase):
def checkEnvironAttrs(self, handler):
env = handler.environ
for attr in [
'version','multithread','multiprocess','run_once','file_wrapper'
]:
if attr=='file_wrapper' and handler.wsgi_file_wrapper is None:
continue
self.assertEqual(getattr(handler,'wsgi_'+attr),env['wsgi.'+attr])
def checkOSEnviron(self,handler):
empty = {}; setup_testing_defaults(empty)
env = handler.environ
from os import environ
for k,v in environ.items():
if k not in empty:
self.assertEqual(env[k],v)
for k,v in empty.items():
self.assertIn(k, env)
def testEnviron(self):
h = TestHandler(X="Y")
h.setup_environ()
self.checkEnvironAttrs(h)
self.checkOSEnviron(h)
self.assertEqual(h.environ["X"],"Y")
def testCGIEnviron(self):
h = BaseCGIHandler(None,None,None,{})
h.setup_environ()
for key in 'wsgi.url_scheme', 'wsgi.input', 'wsgi.errors':
self.assertIn(key, h.environ)
def testScheme(self):
h=TestHandler(HTTPS="on"); h.setup_environ()
self.assertEqual(h.environ['wsgi.url_scheme'],'https')
h=TestHandler(); h.setup_environ()
self.assertEqual(h.environ['wsgi.url_scheme'],'http')
def testAbstractMethods(self):
h = BaseHandler()
for name in [
'_flush','get_stdin','get_stderr','add_cgi_vars'
]:
self.assertRaises(NotImplementedError, getattr(h,name))
self.assertRaises(NotImplementedError, h._write, "test")
def testContentLength(self):
# Demo one reason iteration is better than write()... ;)
def trivial_app1(e,s):
s('200 OK',[])
return [e['wsgi.url_scheme'].encode('iso-8859-1')]
def trivial_app2(e,s):
s('200 OK',[])(e['wsgi.url_scheme'].encode('iso-8859-1'))
return []
def trivial_app3(e,s):
s('200 OK',[])
return ['\u0442\u0435\u0441\u0442'.encode("utf-8")]
def trivial_app4(e,s):
# Simulate a response to a HEAD request
s('200 OK',[('Content-Length', '12345')])
return []
h = TestHandler()
h.run(trivial_app1)
self.assertEqual(h.stdout.getvalue(),
("Status: 200 OK\r\n"
"Content-Length: 4\r\n"
"\r\n"
"http").encode("iso-8859-1"))
h = TestHandler()
h.run(trivial_app2)
self.assertEqual(h.stdout.getvalue(),
("Status: 200 OK\r\n"
"\r\n"
"http").encode("iso-8859-1"))
h = TestHandler()
h.run(trivial_app3)
self.assertEqual(h.stdout.getvalue(),
b'Status: 200 OK\r\n'
b'Content-Length: 8\r\n'
b'\r\n'
b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82')
h = TestHandler()
h.run(trivial_app4)
self.assertEqual(h.stdout.getvalue(),
b'Status: 200 OK\r\n'
b'Content-Length: 12345\r\n'
b'\r\n')
def testBasicErrorOutput(self):
def non_error_app(e,s):
s('200 OK',[])
return []
def error_app(e,s):
raise AssertionError("This should be caught by handler")
h = ErrorHandler()
h.run(non_error_app)
self.assertEqual(h.stdout.getvalue(),
("Status: 200 OK\r\n"
"Content-Length: 0\r\n"
"\r\n").encode("iso-8859-1"))
self.assertEqual(h.stderr.getvalue(),"")
h = ErrorHandler()
h.run(error_app)
self.assertEqual(h.stdout.getvalue(),
("Status: %s\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: %d\r\n"
"\r\n" % (h.error_status,len(h.error_body))).encode('iso-8859-1')
+ h.error_body)
self.assertIn("AssertionError", h.stderr.getvalue())
def testErrorAfterOutput(self):
MSG = b"Some output has been sent"
def error_app(e,s):
s("200 OK",[])(MSG)
raise AssertionError("This should be caught by handler")
h = ErrorHandler()
h.run(error_app)
self.assertEqual(h.stdout.getvalue(),
("Status: 200 OK\r\n"
"\r\n".encode("iso-8859-1")+MSG))
self.assertIn("AssertionError", h.stderr.getvalue())
def testHeaderFormats(self):
def non_error_app(e,s):
s('200 OK',[])
return []
stdpat = (
r"HTTP/%s 200 OK\r\n"
r"Date: \w{3}, [ 0123]\d \w{3} \d{4} \d\d:\d\d:\d\d GMT\r\n"
r"%s" r"Content-Length: 0\r\n" r"\r\n"
)
shortpat = (
"Status: 200 OK\r\n" "Content-Length: 0\r\n" "\r\n"
).encode("iso-8859-1")
for ssw in "FooBar/1.0", None:
sw = ssw and "Server: %s\r\n" % ssw or ""
for version in "1.0", "1.1":
for proto in "HTTP/0.9", "HTTP/1.0", "HTTP/1.1":
h = TestHandler(SERVER_PROTOCOL=proto)
h.origin_server = False
h.http_version = version
h.server_software = ssw
h.run(non_error_app)
self.assertEqual(shortpat,h.stdout.getvalue())
h = TestHandler(SERVER_PROTOCOL=proto)
h.origin_server = True
h.http_version = version
h.server_software = ssw
h.run(non_error_app)
if proto=="HTTP/0.9":
self.assertEqual(h.stdout.getvalue(),b"")
else:
self.assertTrue(
re.match((stdpat%(version,sw)).encode("iso-8859-1"),
h.stdout.getvalue()),
((stdpat%(version,sw)).encode("iso-8859-1"),
h.stdout.getvalue())
)
def testBytesData(self):
def app(e, s):
s("200 OK", [
("Content-Type", "text/plain; charset=utf-8"),
])
return [b"data"]
h = TestHandler()
h.run(app)
self.assertEqual(b"Status: 200 OK\r\n"
b"Content-Type: text/plain; charset=utf-8\r\n"
b"Content-Length: 4\r\n"
b"\r\n"
b"data",
h.stdout.getvalue())
def testCloseOnError(self):
side_effects = {'close_called': False}
MSG = b"Some output has been sent"
def error_app(e,s):
s("200 OK",[])(MSG)
class CrashyIterable(object):
def __iter__(self):
while True:
yield b'blah'
raise AssertionError("This should be caught by handler")
def close(self):
side_effects['close_called'] = True
return CrashyIterable()
h = ErrorHandler()
h.run(error_app)
self.assertEqual(side_effects['close_called'], True)
def testPartialWrite(self):
written = bytearray()
class PartialWriter:
def write(self, b):
partial = b[:7]
written.extend(partial)
return len(partial)
def flush(self):
pass
environ = {"SERVER_PROTOCOL": "HTTP/1.0"}
h = SimpleHandler(BytesIO(), PartialWriter(), sys.stderr, environ)
msg = "should not do partial writes"
with self.assertWarnsRegex(DeprecationWarning, msg):
h.run(hello_app)
self.assertEqual(b"HTTP/1.0 200 OK\r\n"
b"Content-Type: text/plain\r\n"
b"Date: Mon, 05 Jun 2006 18:49:54 GMT\r\n"
b"Content-Length: 13\r\n"
b"\r\n"
b"Hello, world!",
written)
def testClientConnectionTerminations(self):
environ = {"SERVER_PROTOCOL": "HTTP/1.0"}
for exception in (
ConnectionAbortedError,
BrokenPipeError,
ConnectionResetError,
):
with self.subTest(exception=exception):
class AbortingWriter:
def write(self, b):
raise exception
stderr = StringIO()
h = SimpleHandler(BytesIO(), AbortingWriter(), stderr, environ)
h.run(hello_app)
self.assertFalse(stderr.getvalue())
def testDontResetInternalStateOnException(self):
class CustomException(ValueError):
pass
# We are raising CustomException here to trigger an exception
# during the execution of SimpleHandler.finish_response(), so
# we can easily test that the internal state of the handler is
# preserved in case of an exception.
class AbortingWriter:
def write(self, b):
raise CustomException
stderr = StringIO()
environ = {"SERVER_PROTOCOL": "HTTP/1.0"}
h = SimpleHandler(BytesIO(), AbortingWriter(), stderr, environ)
h.run(hello_app)
self.assertIn("CustomException", stderr.getvalue())
# Test that the internal state of the handler is preserved.
self.assertIsNotNone(h.result)
self.assertIsNotNone(h.headers)
self.assertIsNotNone(h.status)
self.assertIsNotNone(h.environ)
if __name__ == "__main__":
unittest.main()
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