# Copyright (C) 2005-2010 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Tests for HTTP implementations.
This module defines a load_tests() method that parametrize tests classes for
transport implementation, http protocol versions and authentication schemes.
"""
# TODO: Should be renamed to bzrlib.transport.http.tests?
# TODO: What about renaming to bzrlib.tests.transport.http ?
from cStringIO import StringIO
import httplib
import os
import select
import SimpleHTTPServer
import socket
import sys
import threading
import bzrlib
from bzrlib import (
bzrdir,
config,
errors,
osutils,
remote as _mod_remote,
tests,
transport,
ui,
urlutils,
)
from bzrlib.symbol_versioning import (
deprecated_in,
)
from bzrlib.tests import (
features,
http_server,
http_utils,
)
from bzrlib.transport import (
http,
remote,
)
from bzrlib.transport.http import (
_urllib,
_urllib2_wrappers,
)
if features.pycurl.available():
from bzrlib.transport.http._pycurl import PyCurlTransport
def load_tests(standard_tests, module, loader):
"""Multiply tests for http clients and protocol versions."""
result = loader.suiteClass()
# one for each transport implementation
t_tests, remaining_tests = tests.split_suite_by_condition(
standard_tests, tests.condition_isinstance((
TestHttpTransportRegistration,
TestHttpTransportUrls,
Test_redirected_to,
)))
transport_scenarios = [
('urllib', dict(_transport=_urllib.HttpTransport_urllib,
_server=http_server.HttpServer_urllib,
_qualified_prefix='http+urllib',)),
]
if features.pycurl.available():
transport_scenarios.append(
('pycurl', dict(_transport=PyCurlTransport,
_server=http_server.HttpServer_PyCurl,
_qualified_prefix='http+pycurl',)))
tests.multiply_tests(t_tests, transport_scenarios, result)
# each implementation tested with each HTTP version
tp_tests, remaining_tests = tests.split_suite_by_condition(
remaining_tests, tests.condition_isinstance((
SmartHTTPTunnellingTest,
TestDoCatchRedirections,
TestHTTPConnections,
TestHTTPRedirections,
TestHTTPSilentRedirections,
TestLimitedRangeRequestServer,
TestPost,
TestProxyHttpServer,
TestRanges,
TestSpecificRequestHandler,
)))
protocol_scenarios = [
('HTTP/1.0', dict(_protocol_version='HTTP/1.0')),
('HTTP/1.1', dict(_protocol_version='HTTP/1.1')),
]
tp_scenarios = tests.multiply_scenarios(transport_scenarios,
protocol_scenarios)
tests.multiply_tests(tp_tests, tp_scenarios, result)
# proxy auth: each auth scheme on all http versions on all implementations.
tppa_tests, remaining_tests = tests.split_suite_by_condition(
remaining_tests, tests.condition_isinstance((
TestProxyAuth,
)))
proxy_auth_scheme_scenarios = [
('basic', dict(_auth_server=http_utils.ProxyBasicAuthServer)),
('digest', dict(_auth_server=http_utils.ProxyDigestAuthServer)),
('basicdigest',
dict(_auth_server=http_utils.ProxyBasicAndDigestAuthServer)),
]
tppa_scenarios = tests.multiply_scenarios(tp_scenarios,
proxy_auth_scheme_scenarios)
tests.multiply_tests(tppa_tests, tppa_scenarios, result)
# auth: each auth scheme on all http versions on all implementations.
tpa_tests, remaining_tests = tests.split_suite_by_condition(
remaining_tests, tests.condition_isinstance((
TestAuth,
)))
auth_scheme_scenarios = [
('basic', dict(_auth_server=http_utils.HTTPBasicAuthServer)),
('digest', dict(_auth_server=http_utils.HTTPDigestAuthServer)),
('basicdigest',
dict(_auth_server=http_utils.HTTPBasicAndDigestAuthServer)),
]
tpa_scenarios = tests.multiply_scenarios(tp_scenarios,
auth_scheme_scenarios)
tests.multiply_tests(tpa_tests, tpa_scenarios, result)
# activity: on all http[s] versions on all implementations
tpact_tests, remaining_tests = tests.split_suite_by_condition(
remaining_tests, tests.condition_isinstance((
TestActivity,
)))
activity_scenarios = [
('urllib,http', dict(_activity_server=ActivityHTTPServer,
_transport=_urllib.HttpTransport_urllib,)),
]
if tests.HTTPSServerFeature.available():
activity_scenarios.append(
('urllib,https', dict(_activity_server=ActivityHTTPSServer,
_transport=_urllib.HttpTransport_urllib,)),)
if features.pycurl.available():
activity_scenarios.append(
('pycurl,http', dict(_activity_server=ActivityHTTPServer,
_transport=PyCurlTransport,)),)
if tests.HTTPSServerFeature.available():
from bzrlib.tests import (
ssl_certs,
)
# FIXME: Until we have a better way to handle self-signed
# certificates (like allowing them in a test specific
# authentication.conf for example), we need some specialized pycurl
# transport for tests.
class HTTPS_pycurl_transport(PyCurlTransport):
def __init__(self, base, _from_transport=None):
super(HTTPS_pycurl_transport, self).__init__(
base, _from_transport)
self.cabundle = str(ssl_certs.build_path('ca.crt'))
activity_scenarios.append(
('pycurl,https', dict(_activity_server=ActivityHTTPSServer,
_transport=HTTPS_pycurl_transport,)),)
tpact_scenarios = tests.multiply_scenarios(activity_scenarios,
protocol_scenarios)
tests.multiply_tests(tpact_tests, tpact_scenarios, result)
# No parametrization for the remaining tests
result.addTests(remaining_tests)
return result
class FakeManager(object):
def __init__(self):
self.credentials = []
def add_password(self, realm, host, username, password):
self.credentials.append([realm, host, username, password])
class RecordingServer(object):
"""A fake HTTP server.
It records the bytes sent to it, and replies with a 200.
"""
def __init__(self, expect_body_tail=None, scheme=''):
"""Constructor.
:type expect_body_tail: str
:param expect_body_tail: a reply won't be sent until this string is
received.
"""
self._expect_body_tail = expect_body_tail
self.host = None
self.port = None
self.received_bytes = ''
self.scheme = scheme
def get_url(self):
return '%s://%s:%s/' % (self.scheme, self.host, self.port)
def start_server(self):
self._sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._sock.bind(('127.0.0.1', 0))
self.host, self.port = self._sock.getsockname()
self._ready = threading.Event()
self._thread = threading.Thread(target=self._accept_read_and_reply)
self._thread.setDaemon(True)
self._thread.start()
self._ready.wait(5)
def _accept_read_and_reply(self):
self._sock.listen(1)
self._ready.set()
self._sock.settimeout(5)
try:
conn, address = self._sock.accept()
# On win32, the accepted connection will be non-blocking to start
# with because we're using settimeout.
conn.setblocking(True)
while not self.received_bytes.endswith(self._expect_body_tail):
self.received_bytes += conn.recv(4096)
conn.sendall('HTTP/1.1 200 OK\r\n')
except socket.timeout:
# Make sure the client isn't stuck waiting for us to e.g. accept.
self._sock.close()
except socket.error:
# The client may have already closed the socket.
pass
def stop_server(self):
try:
self._sock.close()
except socket.error:
# We might have already closed it. We don't care.
pass
self.host = None
self.port = None
class TestAuthHeader(tests.TestCase):
def parse_header(self, header, auth_handler_class=None):
if auth_handler_class is None:
auth_handler_class = _urllib2_wrappers.AbstractAuthHandler
self.auth_handler = auth_handler_class()
return self.auth_handler._parse_auth_header(header)
def test_empty_header(self):
scheme, remainder = self.parse_header('')
self.assertEqual('', scheme)
self.assertIs(None, remainder)
def test_negotiate_header(self):
scheme, remainder = self.parse_header('Negotiate')
self.assertEqual('negotiate', scheme)
self.assertIs(None, remainder)
def test_basic_header(self):
scheme, remainder = self.parse_header(
'Basic realm="Thou should not pass"')
self.assertEqual('basic', scheme)
self.assertEqual('realm="Thou should not pass"', remainder)
def test_basic_extract_realm(self):
scheme, remainder = self.parse_header(
'Basic realm="Thou should not pass"',
_urllib2_wrappers.BasicAuthHandler)
match, realm = self.auth_handler.extract_realm(remainder)
self.assertTrue(match is not None)
self.assertEqual('Thou should not pass', realm)
def test_digest_header(self):
scheme, remainder = self.parse_header(
'Digest realm="Thou should not pass"')
self.assertEqual('digest', scheme)
self.assertEqual('realm="Thou should not pass"', remainder)
class TestHTTPServer(tests.TestCase):
"""Test the HTTP servers implementations."""
def test_invalid_protocol(self):
class BogusRequestHandler(http_server.TestingHTTPRequestHandler):
protocol_version = 'HTTP/0.1'
server = http_server.HttpServer(BogusRequestHandler)
try:
self.assertRaises(httplib.UnknownProtocol, server.start_server)
except:
server.stop_server()
self.fail('HTTP Server creation did not raise UnknownProtocol')
def test_force_invalid_protocol(self):
server = http_server.HttpServer(protocol_version='HTTP/0.1')
try:
self.assertRaises(httplib.UnknownProtocol, server.start_server)
except:
server.stop_server()
self.fail('HTTP Server creation did not raise UnknownProtocol')
def test_server_start_and_stop(self):
server = http_server.HttpServer()
server.start_server()
try:
self.assertTrue(server._http_running)
finally:
server.stop_server()
self.assertFalse(server._http_running)
def test_create_http_server_one_zero(self):
class RequestHandlerOneZero(http_server.TestingHTTPRequestHandler):
protocol_version = 'HTTP/1.0'
server = http_server.HttpServer(RequestHandlerOneZero)
self.start_server(server)
self.assertIsInstance(server._httpd, http_server.TestingHTTPServer)
def test_create_http_server_one_one(self):
class RequestHandlerOneOne(http_server.TestingHTTPRequestHandler):
protocol_version = 'HTTP/1.1'
server = http_server.HttpServer(RequestHandlerOneOne)
self.start_server(server)
self.assertIsInstance(server._httpd,
http_server.TestingThreadingHTTPServer)
def test_create_http_server_force_one_one(self):
class RequestHandlerOneZero(http_server.TestingHTTPRequestHandler):
protocol_version = 'HTTP/1.0'
server = http_server.HttpServer(RequestHandlerOneZero,
protocol_version='HTTP/1.1')
self.start_server(server)
self.assertIsInstance(server._httpd,
http_server.TestingThreadingHTTPServer)
def test_create_http_server_force_one_zero(self):
class RequestHandlerOneOne(http_server.TestingHTTPRequestHandler):
protocol_version = 'HTTP/1.1'
server = http_server.HttpServer(RequestHandlerOneOne,
protocol_version='HTTP/1.0')
self.start_server(server)
self.assertIsInstance(server._httpd,
http_server.TestingHTTPServer)
class TestWithTransport_pycurl(object):
"""Test case to inherit from if pycurl is present"""
def _get_pycurl_maybe(self):
self.requireFeature(features.pycurl)
return PyCurlTransport
_transport = property(_get_pycurl_maybe)
class TestHttpUrls(tests.TestCase):
# TODO: This should be moved to authorization tests once they
# are written.
def test_url_parsing(self):
f = FakeManager()
url = http.extract_auth('http://example.com', f)
self.assertEqual('http://example.com', url)
self.assertEqual(0, len(f.credentials))
url = http.extract_auth(
'http://user:pass@example.com/bzr/bzr.dev', f)
self.assertEqual('http://example.com/bzr/bzr.dev', url)
self.assertEqual(1, len(f.credentials))
self.assertEqual([None, 'example.com', 'user', 'pass'],
f.credentials[0])
class TestHttpTransportUrls(tests.TestCase):
"""Test the http urls."""
def test_abs_url(self):
"""Construction of absolute http URLs"""
t = self._transport('http://bazaar-vcs.org/bzr/bzr.dev/')
eq = self.assertEqualDiff
eq(t.abspath('.'), 'http://bazaar-vcs.org/bzr/bzr.dev')
eq(t.abspath('foo/bar'), 'http://bazaar-vcs.org/bzr/bzr.dev/foo/bar')
eq(t.abspath('.bzr'), 'http://bazaar-vcs.org/bzr/bzr.dev/.bzr')
eq(t.abspath('.bzr/1//2/./3'),
'http://bazaar-vcs.org/bzr/bzr.dev/.bzr/1/2/3')
def test_invalid_http_urls(self):
"""Trap invalid construction of urls"""
t = self._transport('http://bazaar-vcs.org/bzr/bzr.dev/')
self.assertRaises(errors.InvalidURL,
self._transport,
'http://http://bazaar-vcs.org/bzr/bzr.dev/')
def test_http_root_urls(self):
"""Construction of URLs from server root"""
t = self._transport('http://bzr.ozlabs.org/')
eq = self.assertEqualDiff
eq(t.abspath('.bzr/tree-version'),
'http://bzr.ozlabs.org/.bzr/tree-version')
def test_http_impl_urls(self):
"""There are servers which ask for particular clients to connect"""
server = self._server()
server.start_server()
try:
url = server.get_url()
self.assertTrue(url.startswith('%s://' % self._qualified_prefix))
finally:
server.stop_server()
class TestHttps_pycurl(TestWithTransport_pycurl, tests.TestCase):
# TODO: This should really be moved into another pycurl
# specific test. When https tests will be implemented, take
# this one into account.
def test_pycurl_without_https_support(self):
"""Test that pycurl without SSL do not fail with a traceback.
For the purpose of the test, we force pycurl to ignore
https by supplying a fake version_info that do not
support it.
"""
self.requireFeature(features.pycurl)
# Import the module locally now that we now it's available.
pycurl = features.pycurl.module
self.overrideAttr(pycurl, 'version_info',
# Fake the pycurl version_info This was taken from
# a windows pycurl without SSL (thanks to bialix)
lambda : (2,
'7.13.2',
462082,
'i386-pc-win32',
2576,
None,
0,
None,
('ftp', 'gopher', 'telnet',
'dict', 'ldap', 'http', 'file'),
None,
0,
None))
self.assertRaises(errors.DependencyNotPresent, self._transport,
'https://launchpad.net')
class TestHTTPConnections(http_utils.TestCaseWithWebserver):
"""Test the http connections."""
def setUp(self):
http_utils.TestCaseWithWebserver.setUp(self)
self.build_tree(['foo/', 'foo/bar'], line_endings='binary',
transport=self.get_transport())
def test_http_has(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertEqual(t.has('foo/bar'), True)
self.assertEqual(len(server.logs), 1)
self.assertContainsRe(server.logs[0],
r'"HEAD /foo/bar HTTP/1.." (200|302) - "-" "bzr/')
def test_http_has_not_found(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertEqual(t.has('not-found'), False)
self.assertContainsRe(server.logs[1],
r'"HEAD /not-found HTTP/1.." 404 - "-" "bzr/')
def test_http_get(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
fp = t.get('foo/bar')
self.assertEqualDiff(
fp.read(),
'contents of foo/bar\n')
self.assertEqual(len(server.logs), 1)
self.assertTrue(server.logs[0].find(
'"GET /foo/bar HTTP/1.1" 200 - "-" "bzr/%s'
% bzrlib.__version__) > -1)
def test_has_on_bogus_host(self):
# Get a free address and don't 'accept' on it, so that we
# can be sure there is no http handler there, but set a
# reasonable timeout to not slow down tests too much.
default_timeout = socket.getdefaulttimeout()
try:
socket.setdefaulttimeout(2)
s = socket.socket()
s.bind(('localhost', 0))
t = self._transport('http://%s:%s/' % s.getsockname())
self.assertRaises(errors.ConnectionError, t.has, 'foo/bar')
finally:
socket.setdefaulttimeout(default_timeout)
class TestHttpTransportRegistration(tests.TestCase):
"""Test registrations of various http implementations"""
def test_http_registered(self):
t = transport.get_transport('%s://foo.com/' % self._qualified_prefix)
self.assertIsInstance(t, transport.Transport)
self.assertIsInstance(t, self._transport)
class TestPost(tests.TestCase):
def test_post_body_is_received(self):
server = RecordingServer(expect_body_tail='end-of-body',
scheme=self._qualified_prefix)
self.start_server(server)
url = server.get_url()
http_transport = self._transport(url)
code, response = http_transport._post('abc def end-of-body')
self.assertTrue(
server.received_bytes.startswith('POST /.bzr/smart HTTP/1.'))
self.assertTrue('content-length: 19\r' in server.received_bytes.lower())
# The transport should not be assuming that the server can accept
# chunked encoding the first time it connects, because HTTP/1.1, so we
# check for the literal string.
self.assertTrue(
server.received_bytes.endswith('\r\n\r\nabc def end-of-body'))
class TestRangeHeader(tests.TestCase):
"""Test range_header method"""
def check_header(self, value, ranges=[], tail=0):
offsets = [ (start, end - start + 1) for start, end in ranges]
coalesce = transport.Transport._coalesce_offsets
coalesced = list(coalesce(offsets, limit=0, fudge_factor=0))
range_header = http.HttpTransportBase._range_header
self.assertEqual(value, range_header(coalesced, tail))
def test_range_header_single(self):
self.check_header('0-9', ranges=[(0,9)])
self.check_header('100-109', ranges=[(100,109)])
def test_range_header_tail(self):
self.check_header('-10', tail=10)
self.check_header('-50', tail=50)
def test_range_header_multi(self):
self.check_header('0-9,100-200,300-5000',
ranges=[(0,9), (100, 200), (300,5000)])
def test_range_header_mixed(self):
self.check_header('0-9,300-5000,-50',
ranges=[(0,9), (300,5000)],
tail=50)
class TestSpecificRequestHandler(http_utils.TestCaseWithWebserver):
"""Tests a specific request handler.
Daughter classes are expected to override _req_handler_class
"""
# Provide a useful default
_req_handler_class = http_server.TestingHTTPRequestHandler
def create_transport_readonly_server(self):
return http_server.HttpServer(self._req_handler_class,
protocol_version=self._protocol_version)
def _testing_pycurl(self):
# TODO: This is duplicated for lots of the classes in this file
return (features.pycurl.available()
and self._transport == PyCurlTransport)
class WallRequestHandler(http_server.TestingHTTPRequestHandler):
"""Whatever request comes in, close the connection"""
def handle_one_request(self):
"""Handle a single HTTP request, by abruptly closing the connection"""
self.close_connection = 1
class TestWallServer(TestSpecificRequestHandler):
"""Tests exceptions during the connection phase"""
_req_handler_class = WallRequestHandler
def test_http_has(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# Unfortunately httplib (see HTTPResponse._read_status
# for details) make no distinction between a closed
# socket and badly formatted status line, so we can't
# just test for ConnectionError, we have to test
# InvalidHttpResponse too. And pycurl may raise ConnectionReset
# instead of ConnectionError too.
self.assertRaises(( errors.ConnectionError, errors.ConnectionReset,
errors.InvalidHttpResponse),
t.has, 'foo/bar')
def test_http_get(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises((errors.ConnectionError, errors.ConnectionReset,
errors.InvalidHttpResponse),
t.get, 'foo/bar')
class BadStatusRequestHandler(http_server.TestingHTTPRequestHandler):
"""Whatever request comes in, returns a bad status"""
def parse_request(self):
"""Fakes handling a single HTTP request, returns a bad status"""
ignored = http_server.TestingHTTPRequestHandler.parse_request(self)
self.send_response(0, "Bad status")
self.close_connection = 1
return False
class TestBadStatusServer(TestSpecificRequestHandler):
"""Tests bad status from server."""
_req_handler_class = BadStatusRequestHandler
def test_http_has(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.InvalidHttpResponse, t.has, 'foo/bar')
def test_http_get(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.InvalidHttpResponse, t.get, 'foo/bar')
class InvalidStatusRequestHandler(http_server.TestingHTTPRequestHandler):
"""Whatever request comes in, returns an invalid status"""
def parse_request(self):
"""Fakes handling a single HTTP request, returns a bad status"""
ignored = http_server.TestingHTTPRequestHandler.parse_request(self)
self.wfile.write("Invalid status line\r\n")
return False
class TestInvalidStatusServer(TestBadStatusServer):
"""Tests invalid status from server.
Both implementations raises the same error as for a bad status.
"""
_req_handler_class = InvalidStatusRequestHandler
def test_http_has(self):
if self._testing_pycurl() and self._protocol_version == 'HTTP/1.1':
raise tests.KnownFailure(
'pycurl hangs if the server send back garbage')
super(TestInvalidStatusServer, self).test_http_has()
def test_http_get(self):
if self._testing_pycurl() and self._protocol_version == 'HTTP/1.1':
raise tests.KnownFailure(
'pycurl hangs if the server send back garbage')
super(TestInvalidStatusServer, self).test_http_get()
class BadProtocolRequestHandler(http_server.TestingHTTPRequestHandler):
"""Whatever request comes in, returns a bad protocol version"""
def parse_request(self):
"""Fakes handling a single HTTP request, returns a bad status"""
ignored = http_server.TestingHTTPRequestHandler.parse_request(self)
# Returns an invalid protocol version, but curl just
# ignores it and those cannot be tested.
self.wfile.write("%s %d %s\r\n" % ('HTTP/0.0',
404,
'Look at my protocol version'))
return False
class TestBadProtocolServer(TestSpecificRequestHandler):
"""Tests bad protocol from server."""
_req_handler_class = BadProtocolRequestHandler
def setUp(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
"pycurl doesn't check the protocol version")
super(TestBadProtocolServer, self).setUp()
def test_http_has(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.InvalidHttpResponse, t.has, 'foo/bar')
def test_http_get(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.InvalidHttpResponse, t.get, 'foo/bar')
class ForbiddenRequestHandler(http_server.TestingHTTPRequestHandler):
"""Whatever request comes in, returns a 403 code"""
def parse_request(self):
"""Handle a single HTTP request, by replying we cannot handle it"""
ignored = http_server.TestingHTTPRequestHandler.parse_request(self)
self.send_error(403)
return False
class TestForbiddenServer(TestSpecificRequestHandler):
"""Tests forbidden server"""
_req_handler_class = ForbiddenRequestHandler
def test_http_has(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.TransportError, t.has, 'foo/bar')
def test_http_get(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
self.assertRaises(errors.TransportError, t.get, 'foo/bar')
class TestRecordingServer(tests.TestCase):
def test_create(self):
server = RecordingServer(expect_body_tail=None)
self.assertEqual('', server.received_bytes)
self.assertEqual(None, server.host)
self.assertEqual(None, server.port)
def test_setUp_and_stop(self):
server = RecordingServer(expect_body_tail=None)
server.start_server()
try:
self.assertNotEqual(None, server.host)
self.assertNotEqual(None, server.port)
finally:
server.stop_server()
self.assertEqual(None, server.host)
self.assertEqual(None, server.port)
def test_send_receive_bytes(self):
server = RecordingServer(expect_body_tail='c', scheme='http')
self.start_server(server)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((server.host, server.port))
sock.sendall('abc')
self.assertEqual('HTTP/1.1 200 OK\r\n',
osutils.recv_all(sock, 4096))
self.assertEqual('abc', server.received_bytes)
class TestRangeRequestServer(TestSpecificRequestHandler):
"""Tests readv requests against server.
We test against default "normal" server.
"""
def setUp(self):
super(TestRangeRequestServer, self).setUp()
self.build_tree_contents([('a', '0123456789')],)
def test_readv(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
l = list(t.readv('a', ((0, 1), (1, 1), (3, 2), (9, 1))))
self.assertEqual(l[0], (0, '0'))
self.assertEqual(l[1], (1, '1'))
self.assertEqual(l[2], (3, '34'))
self.assertEqual(l[3], (9, '9'))
def test_readv_out_of_order(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
l = list(t.readv('a', ((1, 1), (9, 1), (0, 1), (3, 2))))
self.assertEqual(l[0], (1, '1'))
self.assertEqual(l[1], (9, '9'))
self.assertEqual(l[2], (0, '0'))
self.assertEqual(l[3], (3, '34'))
def test_readv_invalid_ranges(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# This is intentionally reading off the end of the file
# since we are sure that it cannot get there
self.assertListRaises((errors.InvalidRange, errors.ShortReadvError,),
t.readv, 'a', [(1,1), (8,10)])
# This is trying to seek past the end of the file, it should
# also raise a special error
self.assertListRaises((errors.InvalidRange, errors.ShortReadvError,),
t.readv, 'a', [(12,2)])
def test_readv_multiple_get_requests(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# force transport to issue multiple requests
t._max_readv_combine = 1
t._max_get_ranges = 1
l = list(t.readv('a', ((0, 1), (1, 1), (3, 2), (9, 1))))
self.assertEqual(l[0], (0, '0'))
self.assertEqual(l[1], (1, '1'))
self.assertEqual(l[2], (3, '34'))
self.assertEqual(l[3], (9, '9'))
# The server should have issued 4 requests
self.assertEqual(4, server.GET_request_nb)
def test_readv_get_max_size(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# force transport to issue multiple requests by limiting the number of
# bytes by request. Note that this apply to coalesced offsets only, a
# single range will keep its size even if bigger than the limit.
t._get_max_size = 2
l = list(t.readv('a', ((0, 1), (1, 1), (2, 4), (6, 4))))
self.assertEqual(l[0], (0, '0'))
self.assertEqual(l[1], (1, '1'))
self.assertEqual(l[2], (2, '2345'))
self.assertEqual(l[3], (6, '6789'))
# The server should have issued 3 requests
self.assertEqual(3, server.GET_request_nb)
def test_complete_readv_leave_pipe_clean(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# force transport to issue multiple requests
t._get_max_size = 2
l = list(t.readv('a', ((0, 1), (1, 1), (2, 4), (6, 4))))
# The server should have issued 3 requests
self.assertEqual(3, server.GET_request_nb)
self.assertEqual('0123456789', t.get_bytes('a'))
self.assertEqual(4, server.GET_request_nb)
def test_incomplete_readv_leave_pipe_clean(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# force transport to issue multiple requests
t._get_max_size = 2
# Don't collapse readv results into a list so that we leave unread
# bytes on the socket
ireadv = iter(t.readv('a', ((0, 1), (1, 1), (2, 4), (6, 4))))
self.assertEqual((0, '0'), ireadv.next())
# The server should have issued one request so far
self.assertEqual(1, server.GET_request_nb)
self.assertEqual('0123456789', t.get_bytes('a'))
# get_bytes issued an additional request, the readv pending ones are
# lost
self.assertEqual(2, server.GET_request_nb)
class SingleRangeRequestHandler(http_server.TestingHTTPRequestHandler):
"""Always reply to range request as if they were single.
Don't be explicit about it, just to annoy the clients.
"""
def get_multiple_ranges(self, file, file_size, ranges):
"""Answer as if it was a single range request and ignores the rest"""
(start, end) = ranges[0]
return self.get_single_range(file, file_size, start, end)
class TestSingleRangeRequestServer(TestRangeRequestServer):
"""Test readv against a server which accept only single range requests"""
_req_handler_class = SingleRangeRequestHandler
class SingleOnlyRangeRequestHandler(http_server.TestingHTTPRequestHandler):
"""Only reply to simple range requests, errors out on multiple"""
def get_multiple_ranges(self, file, file_size, ranges):
"""Refuses the multiple ranges request"""
if len(ranges) > 1:
file.close()
self.send_error(416, "Requested range not satisfiable")
return
(start, end) = ranges[0]
return self.get_single_range(file, file_size, start, end)
class TestSingleOnlyRangeRequestServer(TestRangeRequestServer):
"""Test readv against a server which only accept single range requests"""
_req_handler_class = SingleOnlyRangeRequestHandler
class NoRangeRequestHandler(http_server.TestingHTTPRequestHandler):
"""Ignore range requests without notice"""
def do_GET(self):
# Update the statistics
self.server.test_case_server.GET_request_nb += 1
# Just bypass the range handling done by TestingHTTPRequestHandler
return SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET(self)
class TestNoRangeRequestServer(TestRangeRequestServer):
"""Test readv against a server which do not accept range requests"""
_req_handler_class = NoRangeRequestHandler
class MultipleRangeWithoutContentLengthRequestHandler(
http_server.TestingHTTPRequestHandler):
"""Reply to multiple range requests without content length header."""
def get_multiple_ranges(self, file, file_size, ranges):
self.send_response(206)
self.send_header('Accept-Ranges', 'bytes')
boundary = "%d" % random.randint(0,0x7FFFFFFF)
self.send_header("Content-Type",
"multipart/byteranges; boundary=%s" % boundary)
self.end_headers()
for (start, end) in ranges:
self.wfile.write("--%s\r\n" % boundary)
self.send_header("Content-type", 'application/octet-stream')
self.send_header("Content-Range", "bytes %d-%d/%d" % (start,
end,
file_size))
self.end_headers()
self.send_range_content(file, start, end - start + 1)
# Final boundary
self.wfile.write("--%s\r\n" % boundary)
class TestMultipleRangeWithoutContentLengthServer(TestRangeRequestServer):
_req_handler_class = MultipleRangeWithoutContentLengthRequestHandler
class TruncatedMultipleRangeRequestHandler(
http_server.TestingHTTPRequestHandler):
"""Reply to multiple range requests truncating the last ones.
This server generates responses whose Content-Length describes all the
ranges, but fail to include the last ones leading to client short reads.
This has been observed randomly with lighttpd (bug #179368).
"""
_truncated_ranges = 2
def get_multiple_ranges(self, file, file_size, ranges):
self.send_response(206)
self.send_header('Accept-Ranges', 'bytes')
boundary = 'tagada'
self.send_header('Content-Type',
'multipart/byteranges; boundary=%s' % boundary)
boundary_line = '--%s\r\n' % boundary
# Calculate the Content-Length
content_length = 0
for (start, end) in ranges:
content_length += len(boundary_line)
content_length += self._header_line_length(
'Content-type', 'application/octet-stream')
content_length += self._header_line_length(
'Content-Range', 'bytes %d-%d/%d' % (start, end, file_size))
content_length += len('\r\n') # end headers
content_length += end - start # + 1
content_length += len(boundary_line)
self.send_header('Content-length', content_length)
self.end_headers()
# Send the multipart body
cur = 0
for (start, end) in ranges:
self.wfile.write(boundary_line)
self.send_header('Content-type', 'application/octet-stream')
self.send_header('Content-Range', 'bytes %d-%d/%d'
% (start, end, file_size))
self.end_headers()
if cur + self._truncated_ranges >= len(ranges):
# Abruptly ends the response and close the connection
self.close_connection = 1
return
self.send_range_content(file, start, end - start + 1)
cur += 1
# No final boundary
self.wfile.write(boundary_line)
class TestTruncatedMultipleRangeServer(TestSpecificRequestHandler):
_req_handler_class = TruncatedMultipleRangeRequestHandler
def setUp(self):
super(TestTruncatedMultipleRangeServer, self).setUp()
self.build_tree_contents([('a', '0123456789')],)
def test_readv_with_short_reads(self):
server = self.get_readonly_server()
t = self._transport(server.get_url())
# Force separate ranges for each offset
t._bytes_to_read_before_seek = 0
ireadv = iter(t.readv('a', ((0, 1), (2, 1), (4, 2), (9, 1))))
self.assertEqual((0, '0'), ireadv.next())
self.assertEqual((2, '2'), ireadv.next())
if not self._testing_pycurl():
# Only one request have been issued so far (except for pycurl that
# try to read the whole response at once)
self.assertEqual(1, server.GET_request_nb)
self.assertEqual((4, '45'), ireadv.next())
self.assertEqual((9, '9'), ireadv.next())
# Both implementations issue 3 requests but:
# - urllib does two multiple (4 ranges, then 2 ranges) then a single
# range,
# - pycurl does two multiple (4 ranges, 4 ranges) then a single range
self.assertEqual(3, server.GET_request_nb)
# Finally the client have tried a single range request and stays in
# that mode
self.assertEqual('single', t._range_hint)
class LimitedRangeRequestHandler(http_server.TestingHTTPRequestHandler):
"""Errors out when range specifiers exceed the limit"""
def get_multiple_ranges(self, file, file_size, ranges):
"""Refuses the multiple ranges request"""
tcs = self.server.test_case_server
if tcs.range_limit is not None and len(ranges) > tcs.range_limit:
file.close()
# Emulate apache behavior
self.send_error(400, "Bad Request")
return
return http_server.TestingHTTPRequestHandler.get_multiple_ranges(
self, file, file_size, ranges)
class LimitedRangeHTTPServer(http_server.HttpServer):
"""An HttpServer erroring out on requests with too much range specifiers"""
def __init__(self, request_handler=LimitedRangeRequestHandler,
protocol_version=None,
range_limit=None):
http_server.HttpServer.__init__(self, request_handler,
protocol_version=protocol_version)
self.range_limit = range_limit
class TestLimitedRangeRequestServer(http_utils.TestCaseWithWebserver):
"""Tests readv requests against a server erroring out on too much ranges."""
# Requests with more range specifiers will error out
range_limit = 3
def create_transport_readonly_server(self):
return LimitedRangeHTTPServer(range_limit=self.range_limit,
protocol_version=self._protocol_version)
def get_transport(self):
return self._transport(self.get_readonly_server().get_url())
def setUp(self):
http_utils.TestCaseWithWebserver.setUp(self)
# We need to manipulate ranges that correspond to real chunks in the
# response, so we build a content appropriately.
filler = ''.join(['abcdefghij' for x in range(102)])
content = ''.join(['%04d' % v + filler for v in range(16)])
self.build_tree_contents([('a', content)],)
def test_few_ranges(self):
t = self.get_transport()
l = list(t.readv('a', ((0, 4), (1024, 4), )))
self.assertEqual(l[0], (0, '0000'))
self.assertEqual(l[1], (1024, '0001'))
self.assertEqual(1, self.get_readonly_server().GET_request_nb)
def test_more_ranges(self):
t = self.get_transport()
l = list(t.readv('a', ((0, 4), (1024, 4), (4096, 4), (8192, 4))))
self.assertEqual(l[0], (0, '0000'))
self.assertEqual(l[1], (1024, '0001'))
self.assertEqual(l[2], (4096, '0004'))
self.assertEqual(l[3], (8192, '0008'))
# The server will refuse to serve the first request (too much ranges),
# a second request will succeed.
self.assertEqual(2, self.get_readonly_server().GET_request_nb)
class TestHttpProxyWhiteBox(tests.TestCase):
"""Whitebox test proxy http authorization.
Only the urllib implementation is tested here.
"""
def setUp(self):
tests.TestCase.setUp(self)
self._old_env = {}
def tearDown(self):
self._restore_env()
tests.TestCase.tearDown(self)
def _install_env(self, env):
for name, value in env.iteritems():
self._old_env[name] = osutils.set_or_unset_env(name, value)
def _restore_env(self):
for name, value in self._old_env.iteritems():
osutils.set_or_unset_env(name, value)
def _proxied_request(self):
handler = _urllib2_wrappers.ProxyHandler()
request = _urllib2_wrappers.Request('GET','http://baz/buzzle')
handler.set_proxy(request, 'http')
return request
def test_empty_user(self):
self._install_env({'http_proxy': 'http://bar.com'})
request = self._proxied_request()
self.assertFalse(request.headers.has_key('Proxy-authorization'))
def test_invalid_proxy(self):
"""A proxy env variable without scheme"""
self._install_env({'http_proxy': 'host:1234'})
self.assertRaises(errors.InvalidURL, self._proxied_request)
class TestProxyHttpServer(http_utils.TestCaseWithTwoWebservers):
"""Tests proxy server.
Be aware that we do not setup a real proxy here. Instead, we
check that the *connection* goes through the proxy by serving
different content (the faked proxy server append '-proxied'
to the file names).
"""
# FIXME: We don't have an https server available, so we don't
# test https connections.
def setUp(self):
super(TestProxyHttpServer, self).setUp()
self.build_tree_contents([('foo', 'contents of foo\n'),
('foo-proxied', 'proxied contents of foo\n')])
# Let's setup some attributes for tests
self.server = self.get_readonly_server()
self.proxy_address = '%s:%d' % (self.server.host, self.server.port)
if self._testing_pycurl():
# Oh my ! pycurl does not check for the port as part of
# no_proxy :-( So we just test the host part
self.no_proxy_host = self.server.host
else:
self.no_proxy_host = self.proxy_address
# The secondary server is the proxy
self.proxy = self.get_secondary_server()
self.proxy_url = self.proxy.get_url()
self._old_env = {}
def _testing_pycurl(self):
# TODO: This is duplicated for lots of the classes in this file
return (features.pycurl.available()
and self._transport == PyCurlTransport)
def create_transport_secondary_server(self):
"""Creates an http server that will serve files with
'-proxied' appended to their names.
"""
return http_utils.ProxyServer(protocol_version=self._protocol_version)
def _install_env(self, env):
for name, value in env.iteritems():
self._old_env[name] = osutils.set_or_unset_env(name, value)
def _restore_env(self):
for name, value in self._old_env.iteritems():
osutils.set_or_unset_env(name, value)
def proxied_in_env(self, env):
self._install_env(env)
url = self.server.get_url()
t = self._transport(url)
try:
self.assertEqual('proxied contents of foo\n', t.get('foo').read())
finally:
self._restore_env()
def not_proxied_in_env(self, env):
self._install_env(env)
url = self.server.get_url()
t = self._transport(url)
try:
self.assertEqual('contents of foo\n', t.get('foo').read())
finally:
self._restore_env()
def test_http_proxy(self):
self.proxied_in_env({'http_proxy': self.proxy_url})
def test_HTTP_PROXY(self):
if self._testing_pycurl():
# pycurl does not check HTTP_PROXY for security reasons
# (for use in a CGI context that we do not care
# about. Should we ?)
raise tests.TestNotApplicable(
'pycurl does not check HTTP_PROXY for security reasons')
self.proxied_in_env({'HTTP_PROXY': self.proxy_url})
def test_all_proxy(self):
self.proxied_in_env({'all_proxy': self.proxy_url})
def test_ALL_PROXY(self):
self.proxied_in_env({'ALL_PROXY': self.proxy_url})
def test_http_proxy_with_no_proxy(self):
self.not_proxied_in_env({'http_proxy': self.proxy_url,
'no_proxy': self.no_proxy_host})
def test_HTTP_PROXY_with_NO_PROXY(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
'pycurl does not check HTTP_PROXY for security reasons')
self.not_proxied_in_env({'HTTP_PROXY': self.proxy_url,
'NO_PROXY': self.no_proxy_host})
def test_all_proxy_with_no_proxy(self):
self.not_proxied_in_env({'all_proxy': self.proxy_url,
'no_proxy': self.no_proxy_host})
def test_ALL_PROXY_with_NO_PROXY(self):
self.not_proxied_in_env({'ALL_PROXY': self.proxy_url,
'NO_PROXY': self.no_proxy_host})
def test_http_proxy_without_scheme(self):
if self._testing_pycurl():
# pycurl *ignores* invalid proxy env variables. If that ever change
# in the future, this test will fail indicating that pycurl do not
# ignore anymore such variables.
self.not_proxied_in_env({'http_proxy': self.proxy_address})
else:
self.assertRaises(errors.InvalidURL,
self.proxied_in_env,
{'http_proxy': self.proxy_address})
class TestRanges(http_utils.TestCaseWithWebserver):
"""Test the Range header in GET methods."""
def setUp(self):
http_utils.TestCaseWithWebserver.setUp(self)
self.build_tree_contents([('a', '0123456789')],)
server = self.get_readonly_server()
self.transport = self._transport(server.get_url())
def create_transport_readonly_server(self):
return http_server.HttpServer(protocol_version=self._protocol_version)
def _file_contents(self, relpath, ranges):
offsets = [ (start, end - start + 1) for start, end in ranges]
coalesce = self.transport._coalesce_offsets
coalesced = list(coalesce(offsets, limit=0, fudge_factor=0))
code, data = self.transport._get(relpath, coalesced)
self.assertTrue(code in (200, 206),'_get returns: %d' % code)
for start, end in ranges:
data.seek(start)
yield data.read(end - start + 1)
def _file_tail(self, relpath, tail_amount):
code, data = self.transport._get(relpath, [], tail_amount)
self.assertTrue(code in (200, 206),'_get returns: %d' % code)
data.seek(-tail_amount, 2)
return data.read(tail_amount)
def test_range_header(self):
# Valid ranges
map(self.assertEqual,['0', '234'],
list(self._file_contents('a', [(0,0), (2,4)])),)
def test_range_header_tail(self):
self.assertEqual('789', self._file_tail('a', 3))
def test_syntactically_invalid_range_header(self):
self.assertListRaises(errors.InvalidHttpRange,
self._file_contents, 'a', [(4, 3)])
def test_semantically_invalid_range_header(self):
self.assertListRaises(errors.InvalidHttpRange,
self._file_contents, 'a', [(42, 128)])
class TestHTTPRedirections(http_utils.TestCaseWithRedirectedWebserver):
"""Test redirection between http servers."""
def create_transport_secondary_server(self):
"""Create the secondary server redirecting to the primary server"""
new = self.get_readonly_server()
redirecting = http_utils.HTTPServerRedirecting(
protocol_version=self._protocol_version)
redirecting.redirect_to(new.host, new.port)
return redirecting
def setUp(self):
super(TestHTTPRedirections, self).setUp()
self.build_tree_contents([('a', '0123456789'),
('bundle',
'# Bazaar revision bundle v0.9\n#\n')
],)
# The requests to the old server will be redirected to the new server
self.old_transport = self._transport(self.old_server.get_url())
def test_redirected(self):
self.assertRaises(errors.RedirectRequested, self.old_transport.get, 'a')
t = self._transport(self.new_server.get_url())
self.assertEqual('0123456789', t.get('a').read())
def test_read_redirected_bundle_from_url(self):
from bzrlib.bundle import read_bundle_from_url
url = self.old_transport.abspath('bundle')
bundle = self.applyDeprecated(deprecated_in((1, 12, 0)),
read_bundle_from_url, url)
# If read_bundle_from_url was successful we get an empty bundle
self.assertEqual([], bundle.revisions)
class RedirectedRequest(_urllib2_wrappers.Request):
"""Request following redirections. """
init_orig = _urllib2_wrappers.Request.__init__
def __init__(self, method, url, *args, **kwargs):
"""Constructor.
"""
# Since the tests using this class will replace
# _urllib2_wrappers.Request, we can't just call the base class __init__
# or we'll loop.
RedirectedRequest.init_orig(self, method, url, *args, **kwargs)
self.follow_redirections = True
def install_redirected_request(test):
test.overrideAttr(_urllib2_wrappers, 'Request', RedirectedRequest)
class TestHTTPSilentRedirections(http_utils.TestCaseWithRedirectedWebserver):
"""Test redirections.
http implementations do not redirect silently anymore (they
do not redirect at all in fact). The mechanism is still in
place at the _urllib2_wrappers.Request level and these tests
exercise it.
For the pycurl implementation
the redirection have been deleted as we may deprecate pycurl
and I have no place to keep a working implementation.
-- vila 20070212
"""
def setUp(self):
if (features.pycurl.available()
and self._transport == PyCurlTransport):
raise tests.TestNotApplicable(
"pycurl doesn't redirect silently annymore")
super(TestHTTPSilentRedirections, self).setUp()
install_redirected_request(self)
self.build_tree_contents([('a','a'),
('1/',),
('1/a', 'redirected once'),
('2/',),
('2/a', 'redirected twice'),
('3/',),
('3/a', 'redirected thrice'),
('4/',),
('4/a', 'redirected 4 times'),
('5/',),
('5/a', 'redirected 5 times'),
],)
self.old_transport = self._transport(self.old_server.get_url())
def create_transport_secondary_server(self):
"""Create the secondary server, redirections are defined in the tests"""
return http_utils.HTTPServerRedirecting(
protocol_version=self._protocol_version)
def test_one_redirection(self):
t = self.old_transport
req = RedirectedRequest('GET', t.abspath('a'))
new_prefix = 'http://%s:%s' % (self.new_server.host,
self.new_server.port)
self.old_server.redirections = \
[('(.*)', r'%s/1\1' % (new_prefix), 301),]
self.assertEqual('redirected once',t._perform(req).read())
def test_five_redirections(self):
t = self.old_transport
req = RedirectedRequest('GET', t.abspath('a'))
old_prefix = 'http://%s:%s' % (self.old_server.host,
self.old_server.port)
new_prefix = 'http://%s:%s' % (self.new_server.host,
self.new_server.port)
self.old_server.redirections = [
('/1(.*)', r'%s/2\1' % (old_prefix), 302),
('/2(.*)', r'%s/3\1' % (old_prefix), 303),
('/3(.*)', r'%s/4\1' % (old_prefix), 307),
('/4(.*)', r'%s/5\1' % (new_prefix), 301),
('(/[^/]+)', r'%s/1\1' % (old_prefix), 301),
]
self.assertEqual('redirected 5 times',t._perform(req).read())
class TestDoCatchRedirections(http_utils.TestCaseWithRedirectedWebserver):
"""Test transport.do_catching_redirections."""
def setUp(self):
super(TestDoCatchRedirections, self).setUp()
self.build_tree_contents([('a', '0123456789'),],)
self.old_transport = self._transport(self.old_server.get_url())
def get_a(self, transport):
return transport.get('a')
def test_no_redirection(self):
t = self._transport(self.new_server.get_url())
# We use None for redirected so that we fail if redirected
self.assertEqual('0123456789',
transport.do_catching_redirections(
self.get_a, t, None).read())
def test_one_redirection(self):
self.redirections = 0
def redirected(transport, exception, redirection_notice):
self.redirections += 1
dir, file = urlutils.split(exception.target)
return self._transport(dir)
self.assertEqual('0123456789',
transport.do_catching_redirections(
self.get_a, self.old_transport, redirected).read())
self.assertEqual(1, self.redirections)
def test_redirection_loop(self):
def redirected(transport, exception, redirection_notice):
# By using the redirected url as a base dir for the
# *old* transport, we create a loop: a => a/a =>
# a/a/a
return self.old_transport.clone(exception.target)
self.assertRaises(errors.TooManyRedirections,
transport.do_catching_redirections,
self.get_a, self.old_transport, redirected)
class TestAuth(http_utils.TestCaseWithWebserver):
"""Test authentication scheme"""
_auth_header = 'Authorization'
_password_prompt_prefix = ''
_username_prompt_prefix = ''
# Set by load_tests
_auth_server = None
def setUp(self):
super(TestAuth, self).setUp()
self.server = self.get_readonly_server()
self.build_tree_contents([('a', 'contents of a\n'),
('b', 'contents of b\n'),])
def create_transport_readonly_server(self):
return self._auth_server(protocol_version=self._protocol_version)
def _testing_pycurl(self):
# TODO: This is duplicated for lots of the classes in this file
return (features.pycurl.available()
and self._transport == PyCurlTransport)
def get_user_url(self, user, password):
"""Build an url embedding user and password"""
url = '%s://' % self.server._url_protocol
if user is not None:
url += user
if password is not None:
url += ':' + password
url += '@'
url += '%s:%s/' % (self.server.host, self.server.port)
return url
def get_user_transport(self, user, password):
return self._transport(self.get_user_url(user, password))
def test_no_user(self):
self.server.add_user('joe', 'foo')
t = self.get_user_transport(None, None)
self.assertRaises(errors.InvalidHttpResponse, t.get, 'a')
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def test_empty_pass(self):
self.server.add_user('joe', '')
t = self.get_user_transport('joe', '')
self.assertEqual('contents of a\n', t.get('a').read())
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def test_user_pass(self):
self.server.add_user('joe', 'foo')
t = self.get_user_transport('joe', 'foo')
self.assertEqual('contents of a\n', t.get('a').read())
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def test_unknown_user(self):
self.server.add_user('joe', 'foo')
t = self.get_user_transport('bill', 'foo')
self.assertRaises(errors.InvalidHttpResponse, t.get, 'a')
# Two 'Authentication Required' errors should occur (the
# initial 'who are you' and 'I don't know you, who are
# you').
self.assertEqual(2, self.server.auth_required_errors)
def test_wrong_pass(self):
self.server.add_user('joe', 'foo')
t = self.get_user_transport('joe', 'bar')
self.assertRaises(errors.InvalidHttpResponse, t.get, 'a')
# Two 'Authentication Required' errors should occur (the
# initial 'who are you' and 'this is not you, who are you')
self.assertEqual(2, self.server.auth_required_errors)
def test_prompt_for_username(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
'pycurl cannot prompt, it handles auth by embedding'
' user:pass in urls only')
self.server.add_user('joe', 'foo')
t = self.get_user_transport(None, None)
stdout = tests.StringIOWrapper()
stderr = tests.StringIOWrapper()
ui.ui_factory = tests.TestUIFactory(stdin='joe\nfoo\n',
stdout=stdout, stderr=stderr)
self.assertEqual('contents of a\n',t.get('a').read())
# stdin should be empty
self.assertEqual('', ui.ui_factory.stdin.readline())
stderr.seek(0)
expected_prompt = self._expected_username_prompt(t._unqualified_scheme)
self.assertEqual(expected_prompt, stderr.read(len(expected_prompt)))
self.assertEqual('', stdout.getvalue())
self._check_password_prompt(t._unqualified_scheme, 'joe',
stderr.readline())
def test_prompt_for_password(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
'pycurl cannot prompt, it handles auth by embedding'
' user:pass in urls only')
self.server.add_user('joe', 'foo')
t = self.get_user_transport('joe', None)
stdout = tests.StringIOWrapper()
stderr = tests.StringIOWrapper()
ui.ui_factory = tests.TestUIFactory(stdin='foo\n',
stdout=stdout, stderr=stderr)
self.assertEqual('contents of a\n', t.get('a').read())
# stdin should be empty
self.assertEqual('', ui.ui_factory.stdin.readline())
self._check_password_prompt(t._unqualified_scheme, 'joe',
stderr.getvalue())
self.assertEqual('', stdout.getvalue())
# And we shouldn't prompt again for a different request
# against the same transport.
self.assertEqual('contents of b\n',t.get('b').read())
t2 = t.clone()
# And neither against a clone
self.assertEqual('contents of b\n',t2.get('b').read())
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def _check_password_prompt(self, scheme, user, actual_prompt):
expected_prompt = (self._password_prompt_prefix
+ ("%s %s@%s:%d, Realm: '%s' password: "
% (scheme.upper(),
user, self.server.host, self.server.port,
self.server.auth_realm)))
self.assertEqual(expected_prompt, actual_prompt)
def _expected_username_prompt(self, scheme):
return (self._username_prompt_prefix
+ "%s %s:%d, Realm: '%s' username: " % (scheme.upper(),
self.server.host, self.server.port,
self.server.auth_realm))
def test_no_prompt_for_password_when_using_auth_config(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
'pycurl does not support authentication.conf'
' since it cannot prompt')
user =' joe'
password = 'foo'
stdin_content = 'bar\n' # Not the right password
self.server.add_user(user, password)
t = self.get_user_transport(user, None)
ui.ui_factory = tests.TestUIFactory(stdin=stdin_content,
stderr=tests.StringIOWrapper())
# Create a minimal config file with the right password
conf = config.AuthenticationConfig()
conf._get_config().update(
{'httptest': {'scheme': 'http', 'port': self.server.port,
'user': user, 'password': password}})
conf._save()
# Issue a request to the server to connect
self.assertEqual('contents of a\n',t.get('a').read())
# stdin should have been left untouched
self.assertEqual(stdin_content, ui.ui_factory.stdin.readline())
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def test_user_from_auth_conf(self):
if self._testing_pycurl():
raise tests.TestNotApplicable(
'pycurl does not support authentication.conf')
user = 'joe'
password = 'foo'
self.server.add_user(user, password)
# Create a minimal config file with the right password
conf = config.AuthenticationConfig()
conf._get_config().update(
{'httptest': {'scheme': 'http', 'port': self.server.port,
'user': user, 'password': password}})
conf._save()
t = self.get_user_transport(None, None)
# Issue a request to the server to connect
self.assertEqual('contents of a\n', t.get('a').read())
# Only one 'Authentication Required' error should occur
self.assertEqual(1, self.server.auth_required_errors)
def test_changing_nonce(self):
if self._auth_server not in (http_utils.HTTPDigestAuthServer,
http_utils.ProxyDigestAuthServer):
raise tests.TestNotApplicable('HTTP/proxy auth digest only test')
if self._testing_pycurl():
raise tests.KnownFailure(
'pycurl does not handle a nonce change')
self.server.add_user('joe', 'foo')
t = self.get_user_transport('joe', 'foo')
self.assertEqual('contents of a\n', t.get('a').read())
self.assertEqual('contents of b\n', t.get('b').read())
# Only one 'Authentication Required' error should have
# occured so far
self.assertEqual(1, self.server.auth_required_errors)
# The server invalidates the current nonce
self.server.auth_nonce = self.server.auth_nonce + '. No, now!'
self.assertEqual('contents of a\n', t.get('a').read())
# Two 'Authentication Required' errors should occur (the
# initial 'who are you' and a second 'who are you' with the new nonce)
self.assertEqual(2, self.server.auth_required_errors)
class TestProxyAuth(TestAuth):
"""Test proxy authentication schemes."""
_auth_header = 'Proxy-authorization'
_password_prompt_prefix = 'Proxy '
_username_prompt_prefix = 'Proxy '
def setUp(self):
super(TestProxyAuth, self).setUp()
self._old_env = {}
self.addCleanup(self._restore_env)
# Override the contents to avoid false positives
self.build_tree_contents([('a', 'not proxied contents of a\n'),
('b', 'not proxied contents of b\n'),
('a-proxied', 'contents of a\n'),
('b-proxied', 'contents of b\n'),
])
def get_user_transport(self, user, password):
self._install_env({'all_proxy': self.get_user_url(user, password)})
return self._transport(self.server.get_url())
def _install_env(self, env):
for name, value in env.iteritems():
self._old_env[name] = osutils.set_or_unset_env(name, value)
def _restore_env(self):
for name, value in self._old_env.iteritems():
osutils.set_or_unset_env(name, value)
def test_empty_pass(self):
if self._testing_pycurl():
import pycurl
if pycurl.version_info()[1] < '7.16.0':
raise tests.KnownFailure(
'pycurl < 7.16.0 does not handle empty proxy passwords')
super(TestProxyAuth, self).test_empty_pass()
class SampleSocket(object):
"""A socket-like object for use in testing the HTTP request handler."""
def __init__(self, socket_read_content):
"""Constructs a sample socket.
:param socket_read_content: a byte sequence
"""
# Use plain python StringIO so we can monkey-patch the close method to
# not discard the contents.
from StringIO import StringIO
self.readfile = StringIO(socket_read_content)
self.writefile = StringIO()
self.writefile.close = lambda: None
def makefile(self, mode='r', bufsize=None):
if 'r' in mode:
return self.readfile
else:
return self.writefile
class SmartHTTPTunnellingTest(tests.TestCaseWithTransport):
def setUp(self):
super(SmartHTTPTunnellingTest, self).setUp()
# We use the VFS layer as part of HTTP tunnelling tests.
self._captureVar('BZR_NO_SMART_VFS', None)
self.transport_readonly_server = http_utils.HTTPServerWithSmarts
def create_transport_readonly_server(self):
return http_utils.HTTPServerWithSmarts(
protocol_version=self._protocol_version)
def test_open_bzrdir(self):
branch = self.make_branch('relpath')
http_server = self.get_readonly_server()
url = http_server.get_url() + 'relpath'
bd = bzrdir.BzrDir.open(url)
self.assertIsInstance(bd, _mod_remote.RemoteBzrDir)
def test_bulk_data(self):
# We should be able to send and receive bulk data in a single message.
# The 'readv' command in the smart protocol both sends and receives
# bulk data, so we use that.
self.build_tree(['data-file'])
http_server = self.get_readonly_server()
http_transport = self._transport(http_server.get_url())
medium = http_transport.get_smart_medium()
# Since we provide the medium, the url below will be mostly ignored
# during the test, as long as the path is '/'.
remote_transport = remote.RemoteTransport('bzr://fake_host/',
medium=medium)
self.assertEqual(
[(0, "c")], list(remote_transport.readv("data-file", [(0,1)])))
def test_http_send_smart_request(self):
post_body = 'hello\n'
expected_reply_body = 'ok\x012\n'
http_server = self.get_readonly_server()
http_transport = self._transport(http_server.get_url())
medium = http_transport.get_smart_medium()
response = medium.send_http_smart_request(post_body)
reply_body = response.read()
self.assertEqual(expected_reply_body, reply_body)
def test_smart_http_server_post_request_handler(self):
httpd = self.get_readonly_server()._get_httpd()
socket = SampleSocket(
'POST /.bzr/smart %s \r\n' % self._protocol_version
# HTTP/1.1 posts must have a Content-Length (but it doesn't hurt
# for 1.0)
+ 'Content-Length: 6\r\n'
'\r\n'
'hello\n')
# Beware: the ('localhost', 80) below is the
# client_address parameter, but we don't have one because
# we have defined a socket which is not bound to an
# address. The test framework never uses this client
# address, so far...
request_handler = http_utils.SmartRequestHandler(socket,
('localhost', 80),
httpd)
response = socket.writefile.getvalue()
self.assertStartsWith(response, '%s 200 ' % self._protocol_version)
# This includes the end of the HTTP headers, and all the body.
expected_end_of_response = '\r\n\r\nok\x012\n'
self.assertEndsWith(response, expected_end_of_response)
class ForbiddenRequestHandler(http_server.TestingHTTPRequestHandler):
"""No smart server here request handler."""
def do_POST(self):
self.send_error(403, "Forbidden")
class SmartClientAgainstNotSmartServer(TestSpecificRequestHandler):
"""Test smart client behaviour against an http server without smarts."""
_req_handler_class = ForbiddenRequestHandler
def test_probe_smart_server(self):
"""Test error handling against server refusing smart requests."""
server = self.get_readonly_server()
t = self._transport(server.get_url())
# No need to build a valid smart request here, the server will not even
# try to interpret it.
self.assertRaises(errors.SmartProtocolError,
t.get_smart_medium().send_http_smart_request,
'whatever')
class Test_redirected_to(tests.TestCase):
def test_redirected_to_subdir(self):
t = self._transport('http://www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'http://www.example.com/foo/subdir')
self.assertIsInstance(r, type(t))
# Both transports share the some connection
self.assertEqual(t._get_connection(), r._get_connection())
def test_redirected_to_self_with_slash(self):
t = self._transport('http://www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'http://www.example.com/foo/')
self.assertIsInstance(r, type(t))
# Both transports share the some connection (one can argue that we
# should return the exact same transport here, but that seems
# overkill).
self.assertEqual(t._get_connection(), r._get_connection())
def test_redirected_to_host(self):
t = self._transport('http://www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'http://foo.example.com/foo/subdir')
self.assertIsInstance(r, type(t))
def test_redirected_to_same_host_sibling_protocol(self):
t = self._transport('http://www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'https://www.example.com/foo')
self.assertIsInstance(r, type(t))
def test_redirected_to_same_host_different_protocol(self):
t = self._transport('http://www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'ftp://www.example.com/foo')
self.assertNotEquals(type(r), type(t))
def test_redirected_to_different_host_same_user(self):
t = self._transport('http://joe@www.example.com/foo')
r = t._redirected_to('http://www.example.com/foo',
'https://foo.example.com/foo')
self.assertIsInstance(r, type(t))
self.assertEqual(t._user, r._user)
class PredefinedRequestHandler(http_server.TestingHTTPRequestHandler):
"""Request handler for a unique and pre-defined request.
The only thing we care about here is how many bytes travel on the wire. But
since we want to measure it for a real http client, we have to send it
correct responses.
We expect to receive a *single* request nothing more (and we won't even
check what request it is, we just measure the bytes read until an empty
line.
"""
def handle_one_request(self):
tcs = self.server.test_case_server
requestline = self.rfile.readline()
headers = self.MessageClass(self.rfile, 0)
# We just read: the request, the headers, an empty line indicating the
# end of the headers.
bytes_read = len(requestline)
for line in headers.headers:
bytes_read += len(line)
bytes_read += len('\r\n')
if requestline.startswith('POST'):
# The body should be a single line (or we don't know where it ends
# and we don't want to issue a blocking read)
body = self.rfile.readline()
bytes_read += len(body)
tcs.bytes_read = bytes_read
# We set the bytes written *before* issuing the write, the client is
# supposed to consume every produced byte *before* checking that value.
# Doing the oppposite may lead to test failure: we may be interrupted
# after the write but before updating the value. The client can then
# continue and read the value *before* we can update it. And yes,
# this has been observed -- vila 20090129
tcs.bytes_written = len(tcs.canned_response)
self.wfile.write(tcs.canned_response)
class ActivityServerMixin(object):
def __init__(self, protocol_version):
super(ActivityServerMixin, self).__init__(
request_handler=PredefinedRequestHandler,
protocol_version=protocol_version)
# Bytes read and written by the server
self.bytes_read = 0
self.bytes_written = 0
self.canned_response = None
class ActivityHTTPServer(ActivityServerMixin, http_server.HttpServer):
pass
if tests.HTTPSServerFeature.available():
from bzrlib.tests import https_server
class ActivityHTTPSServer(ActivityServerMixin, https_server.HTTPSServer):
pass
class TestActivityMixin(object):
"""Test socket activity reporting.
We use a special purpose server to control the bytes sent and received and
be able to predict the activity on the client socket.
"""
def setUp(self):
tests.TestCase.setUp(self)
self.server = self._activity_server(self._protocol_version)
self.server.start_server()
self.activities = {}
def report_activity(t, bytes, direction):
count = self.activities.get(direction, 0)
count += bytes
self.activities[direction] = count
# We override at class level because constructors may propagate the
# bound method and render instance overriding ineffective (an
# alternative would be to define a specific ui factory instead...)
self.orig_report_activity = self._transport._report_activity
self._transport._report_activity = report_activity
def tearDown(self):
self._transport._report_activity = self.orig_report_activity
self.server.stop_server()
tests.TestCase.tearDown(self)
def get_transport(self):
return self._transport(self.server.get_url())
def assertActivitiesMatch(self):
self.assertEqual(self.server.bytes_read,
self.activities.get('write', 0), 'written bytes')
self.assertEqual(self.server.bytes_written,
self.activities.get('read', 0), 'read bytes')
def test_get(self):
self.server.canned_response = '''HTTP/1.1 200 OK\r
Date: Tue, 11 Jul 2006 04:32:56 GMT\r
Server: Apache/2.0.54 (Fedora)\r
Last-Modified: Sun, 23 Apr 2006 19:35:20 GMT\r
ETag: "56691-23-38e9ae00"\r
Accept-Ranges: bytes\r
Content-Length: 35\r
Connection: close\r
Content-Type: text/plain; charset=UTF-8\r
\r
Bazaar-NG meta directory, format 1
'''
t = self.get_transport()
self.assertEqual('Bazaar-NG meta directory, format 1\n',
t.get('foo/bar').read())
self.assertActivitiesMatch()
def test_has(self):
self.server.canned_response = '''HTTP/1.1 200 OK\r
Server: SimpleHTTP/0.6 Python/2.5.2\r
Date: Thu, 29 Jan 2009 20:21:47 GMT\r
Content-type: application/octet-stream\r
Content-Length: 20\r
Last-Modified: Thu, 29 Jan 2009 20:21:47 GMT\r
\r
'''
t = self.get_transport()
self.assertTrue(t.has('foo/bar'))
self.assertActivitiesMatch()
def test_readv(self):
self.server.canned_response = '''HTTP/1.1 206 Partial Content\r
Date: Tue, 11 Jul 2006 04:49:48 GMT\r
Server: Apache/2.0.54 (Fedora)\r
Last-Modified: Thu, 06 Jul 2006 20:22:05 GMT\r
ETag: "238a3c-16ec2-805c5540"\r
Accept-Ranges: bytes\r
Content-Length: 1534\r
Connection: close\r
Content-Type: multipart/byteranges; boundary=418470f848b63279b\r
\r
\r
--418470f848b63279b\r
Content-type: text/plain; charset=UTF-8\r
Content-range: bytes 0-254/93890\r
\r
mbp@sourcefrog.net-20050309040815-13242001617e4a06
mbp@sourcefrog.net-20050309040929-eee0eb3e6d1e7627
mbp@sourcefrog.net-20050309040957-6cad07f466bb0bb8
mbp@sourcefrog.net-20050309041501-c840e09071de3b67
mbp@sourcefrog.net-20050309044615-c24a3250be83220a
\r
--418470f848b63279b\r
Content-type: text/plain; charset=UTF-8\r
Content-range: bytes 1000-2049/93890\r
\r
40-fd4ec249b6b139ab
mbp@sourcefrog.net-20050311063625-07858525021f270b
mbp@sourcefrog.net-20050311231934-aa3776aff5200bb9
mbp@sourcefrog.net-20050311231953-73aeb3a131c3699a
mbp@sourcefrog.net-20050311232353-f5e33da490872c6a
mbp@sourcefrog.net-20050312071639-0a8f59a34a024ff0
mbp@sourcefrog.net-20050312073432-b2c16a55e0d6e9fb
mbp@sourcefrog.net-20050312073831-a47c3335ece1920f
mbp@sourcefrog.net-20050312085412-13373aa129ccbad3
mbp@sourcefrog.net-20050313052251-2bf004cb96b39933
mbp@sourcefrog.net-20050313052856-3edd84094687cb11
mbp@sourcefrog.net-20050313053233-e30a4f28aef48f9d
mbp@sourcefrog.net-20050313053853-7c64085594ff3072
mbp@sourcefrog.net-20050313054757-a86c3f5871069e22
mbp@sourcefrog.net-20050313061422-418f1f73b94879b9
mbp@sourcefrog.net-20050313120651-497bd231b19df600
mbp@sourcefrog.net-20050314024931-eae0170ef25a5d1a
mbp@sourcefrog.net-20050314025438-d52099f915fe65fc
mbp@sourcefrog.net-20050314025539-637a636692c055cf
mbp@sourcefrog.net-20050314025737-55eb441f430ab4ba
mbp@sourcefrog.net-20050314025901-d74aa93bb7ee8f62
mbp@source\r
--418470f848b63279b--\r
'''
t = self.get_transport()
# Remember that the request is ignored and that the ranges below
# doesn't have to match the canned response.
l = list(t.readv('/foo/bar', ((0, 255), (1000, 1050))))
self.assertEqual(2, len(l))
self.assertActivitiesMatch()
def test_post(self):
self.server.canned_response = '''HTTP/1.1 200 OK\r
Date: Tue, 11 Jul 2006 04:32:56 GMT\r
Server: Apache/2.0.54 (Fedora)\r
Last-Modified: Sun, 23 Apr 2006 19:35:20 GMT\r
ETag: "56691-23-38e9ae00"\r
Accept-Ranges: bytes\r
Content-Length: 35\r
Connection: close\r
Content-Type: text/plain; charset=UTF-8\r
\r
lalala whatever as long as itsssss
'''
t = self.get_transport()
# We must send a single line of body bytes, see
# PredefinedRequestHandler.handle_one_request
code, f = t._post('abc def end-of-body\n')
self.assertEqual('lalala whatever as long as itsssss\n', f.read())
self.assertActivitiesMatch()
class TestActivity(tests.TestCase, TestActivityMixin):
def setUp(self):
tests.TestCase.setUp(self)
self.server = self._activity_server(self._protocol_version)
self.server.start_server()
self.activities = {}
def report_activity(t, bytes, direction):
count = self.activities.get(direction, 0)
count += bytes
self.activities[direction] = count
# We override at class level because constructors may propagate the
# bound method and render instance overriding ineffective (an
# alternative would be to define a specific ui factory instead...)
self.orig_report_activity = self._transport._report_activity
self._transport._report_activity = report_activity
def tearDown(self):
self._transport._report_activity = self.orig_report_activity
self.server.stop_server()
tests.TestCase.tearDown(self)
class TestNoReportActivity(tests.TestCase, TestActivityMixin):
def setUp(self):
tests.TestCase.setUp(self)
# Unlike TestActivity, we are really testing ReportingFileSocket and
# ReportingSocket, so we don't need all the parametrization. Since
# ReportingFileSocket and ReportingSocket are wrappers, it's easier to
# test them through their use by the transport than directly (that's a
# bit less clean but far more simpler and effective).
self.server = ActivityHTTPServer('HTTP/1.1')
self._transport=_urllib.HttpTransport_urllib
self.server.start_server()
# We override at class level because constructors may propagate the
# bound method and render instance overriding ineffective (an
# alternative would be to define a specific ui factory instead...)
self.orig_report_activity = self._transport._report_activity
self._transport._report_activity = None
def tearDown(self):
self._transport._report_activity = self.orig_report_activity
self.server.stop_server()
tests.TestCase.tearDown(self)
def assertActivitiesMatch(self):
# Nothing to check here
pass
class TestAuthOnRedirected(http_utils.TestCaseWithRedirectedWebserver):
"""Test authentication on the redirected http server."""
_auth_header = 'Authorization'
_password_prompt_prefix = ''
_username_prompt_prefix = ''
_auth_server = http_utils.HTTPBasicAuthServer
_transport = _urllib.HttpTransport_urllib
def create_transport_readonly_server(self):
return self._auth_server()
def create_transport_secondary_server(self):
"""Create the secondary server redirecting to the primary server"""
new = self.get_readonly_server()
redirecting = http_utils.HTTPServerRedirecting()
redirecting.redirect_to(new.host, new.port)
return redirecting
def setUp(self):
super(TestAuthOnRedirected, self).setUp()
self.build_tree_contents([('a','a'),
('1/',),
('1/a', 'redirected once'),
],)
new_prefix = 'http://%s:%s' % (self.new_server.host,
self.new_server.port)
self.old_server.redirections = [
('(.*)', r'%s/1\1' % (new_prefix), 301),]
self.old_transport = self._transport(self.old_server.get_url())
self.new_server.add_user('joe', 'foo')
def get_a(self, transport):
return transport.get('a')
def test_auth_on_redirected_via_do_catching_redirections(self):
self.redirections = 0
def redirected(transport, exception, redirection_notice):
self.redirections += 1
dir, file = urlutils.split(exception.target)
return self._transport(dir)
stdout = tests.StringIOWrapper()
stderr = tests.StringIOWrapper()
ui.ui_factory = tests.TestUIFactory(stdin='joe\nfoo\n',
stdout=stdout, stderr=stderr)
self.assertEqual('redirected once',
transport.do_catching_redirections(
self.get_a, self.old_transport, redirected).read())
self.assertEqual(1, self.redirections)
# stdin should be empty
self.assertEqual('', ui.ui_factory.stdin.readline())
# stdout should be empty, stderr will contains the prompts
self.assertEqual('', stdout.getvalue())
def test_auth_on_redirected_via_following_redirections(self):
self.new_server.add_user('joe', 'foo')
stdout = tests.StringIOWrapper()
stderr = tests.StringIOWrapper()
ui.ui_factory = tests.TestUIFactory(stdin='joe\nfoo\n',
stdout=stdout, stderr=stderr)
t = self.old_transport
req = RedirectedRequest('GET', t.abspath('a'))
new_prefix = 'http://%s:%s' % (self.new_server.host,
self.new_server.port)
self.old_server.redirections = [
('(.*)', r'%s/1\1' % (new_prefix), 301),]
self.assertEqual('redirected once',t._perform(req).read())
# stdin should be empty
self.assertEqual('', ui.ui_factory.stdin.readline())
# stdout should be empty, stderr will contains the prompts
self.assertEqual('', stdout.getvalue())
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