|
|
# Copyright 2010, Google Inc.
|
|
|
# All rights reserved.
|
|
|
#
|
|
|
# Redistribution and use in source and binary forms, with or without
|
|
|
# modification, are permitted provided that the following conditions are
|
|
|
# met:
|
|
|
#
|
|
|
# * Redistributions of source code must retain the above copyright
|
|
|
# notice, this list of conditions and the following disclaimer.
|
|
|
# * Redistributions in binary form must reproduce the above
|
|
|
# copyright notice, this list of conditions and the following disclaimer
|
|
|
# in the documentation and/or other materials provided with the
|
|
|
# distribution.
|
|
|
# * Neither the name of Google Inc. nor the names of its
|
|
|
# contributors may be used to endorse or promote products derived from
|
|
|
# this software without specific prior written permission.
|
|
|
|
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
import difflib
|
|
|
import socket
|
|
|
|
|
|
import httpplus
|
|
|
|
|
|
|
|
|
class MockSocket(object):
|
|
|
"""Mock non-blocking socket object.
|
|
|
|
|
|
This is ONLY capable of mocking a nonblocking socket.
|
|
|
|
|
|
Attributes:
|
|
|
early_data: data to always send as soon as end of headers is seen
|
|
|
data: a list of strings to return on recv(), with the
|
|
|
assumption that the socket would block between each
|
|
|
string in the list.
|
|
|
read_wait_sentinel: data that must be written to the socket before
|
|
|
beginning the response.
|
|
|
close_on_empty: If true, close the socket when it runs out of data
|
|
|
for the client.
|
|
|
"""
|
|
|
def __init__(self, af, socktype, proto):
|
|
|
self.af = af
|
|
|
self.socktype = socktype
|
|
|
self.proto = proto
|
|
|
|
|
|
self.early_data = []
|
|
|
self.data = []
|
|
|
self.remote_closed = self.closed = False
|
|
|
self.close_on_empty = False
|
|
|
self.sent = ''
|
|
|
self.read_wait_sentinel = httpplus._END_HEADERS
|
|
|
self.blocking = True
|
|
|
|
|
|
def close(self):
|
|
|
self.closed = True
|
|
|
|
|
|
def connect(self, sa):
|
|
|
self.sa = sa
|
|
|
|
|
|
def setblocking(self, timeout):
|
|
|
self.blocking = bool(timeout)
|
|
|
|
|
|
def recv(self, amt=-1):
|
|
|
# we only properly emulate non-blocking sockets
|
|
|
assert not self.blocking
|
|
|
if self.early_data:
|
|
|
datalist = self.early_data
|
|
|
elif not self.data:
|
|
|
return ''
|
|
|
else:
|
|
|
datalist = self.data
|
|
|
if amt == -1:
|
|
|
return datalist.pop(0)
|
|
|
data = datalist.pop(0)
|
|
|
if len(data) > amt:
|
|
|
datalist.insert(0, data[amt:])
|
|
|
if not self.data and not self.early_data and self.close_on_empty:
|
|
|
self.remote_closed = True
|
|
|
return data[:amt]
|
|
|
|
|
|
@property
|
|
|
def ready_for_read(self):
|
|
|
return ((self.early_data and httpplus._END_HEADERS in self.sent)
|
|
|
or (self.read_wait_sentinel in self.sent and self.data)
|
|
|
or self.closed or self.remote_closed)
|
|
|
|
|
|
def send(self, data):
|
|
|
# this is a horrible mock, but nothing needs us to raise the
|
|
|
# correct exception yet
|
|
|
assert not self.closed, 'attempted to write to a closed socket'
|
|
|
assert not self.remote_closed, ('attempted to write to a'
|
|
|
' socket closed by the server')
|
|
|
if len(data) > 8192:
|
|
|
data = data[:8192]
|
|
|
self.sent += data
|
|
|
return len(data)
|
|
|
|
|
|
|
|
|
def mockselect(r, w, x, timeout=0):
|
|
|
"""Simple mock for select()
|
|
|
"""
|
|
|
readable = filter(lambda s: s.ready_for_read, r)
|
|
|
return readable, w[:], []
|
|
|
|
|
|
|
|
|
class MockSSLSocket(object):
|
|
|
def __init__(self, sock):
|
|
|
self._sock = sock
|
|
|
self._fail_recv = True
|
|
|
|
|
|
def __getattr__(self, key):
|
|
|
return getattr(self._sock, key)
|
|
|
|
|
|
def __setattr__(self, key, value):
|
|
|
if key not in ('_sock', '_fail_recv'):
|
|
|
return setattr(self._sock, key, value)
|
|
|
return object.__setattr__(self, key, value)
|
|
|
|
|
|
def recv(self, amt=-1):
|
|
|
try:
|
|
|
if self._fail_recv:
|
|
|
raise socket.sslerror(socket.SSL_ERROR_WANT_READ)
|
|
|
return self._sock.recv(amt=amt)
|
|
|
finally:
|
|
|
self._fail_recv = not self._fail_recv
|
|
|
|
|
|
|
|
|
def mocksslwrap(sock, keyfile=None, certfile=None,
|
|
|
server_side=False, cert_reqs=httpplus.socketutil.CERT_NONE,
|
|
|
ssl_version=None, ca_certs=None,
|
|
|
do_handshake_on_connect=True,
|
|
|
suppress_ragged_eofs=True):
|
|
|
assert sock.blocking, ('wrapping a socket with ssl requires that '
|
|
|
'it be in blocking mode.')
|
|
|
return MockSSLSocket(sock)
|
|
|
|
|
|
|
|
|
def mockgetaddrinfo(host, port, unused, streamtype):
|
|
|
assert unused == 0
|
|
|
assert streamtype == socket.SOCK_STREAM
|
|
|
if host.count('.') != 3:
|
|
|
host = '127.0.0.42'
|
|
|
return [(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, '',
|
|
|
(host, port))]
|
|
|
|
|
|
|
|
|
class HttpTestBase(object):
|
|
|
def setUp(self):
|
|
|
self.orig_socket = socket.socket
|
|
|
socket.socket = MockSocket
|
|
|
|
|
|
self.orig_getaddrinfo = socket.getaddrinfo
|
|
|
socket.getaddrinfo = mockgetaddrinfo
|
|
|
|
|
|
self.orig_select = httpplus.select.select
|
|
|
httpplus.select.select = mockselect
|
|
|
|
|
|
self.orig_sslwrap = httpplus.socketutil.wrap_socket
|
|
|
httpplus.socketutil.wrap_socket = mocksslwrap
|
|
|
|
|
|
def tearDown(self):
|
|
|
socket.socket = self.orig_socket
|
|
|
httpplus.select.select = self.orig_select
|
|
|
httpplus.socketutil.wrap_socket = self.orig_sslwrap
|
|
|
socket.getaddrinfo = self.orig_getaddrinfo
|
|
|
|
|
|
def assertStringEqual(self, l, r):
|
|
|
try:
|
|
|
self.assertEqual(l, r, ('failed string equality check, '
|
|
|
'see stdout for details'))
|
|
|
except:
|
|
|
add_nl = lambda li: map(lambda x: x + '\n', li)
|
|
|
print 'failed expectation:'
|
|
|
print ''.join(difflib.unified_diff(
|
|
|
add_nl(l.splitlines()), add_nl(r.splitlines()),
|
|
|
fromfile='expected', tofile='got'))
|
|
|
raise
|
|
|
|
|
|
def doPost(self, con, expect_body, body_to_send='This is some POST data'):
|
|
|
con.request('POST', '/', body=body_to_send,
|
|
|
expect_continue=True)
|
|
|
expected_req = ('POST / HTTP/1.1\r\n'
|
|
|
'Host: 1.2.3.4\r\n'
|
|
|
'content-length: %d\r\n'
|
|
|
'Expect: 100-Continue\r\n'
|
|
|
'accept-encoding: identity\r\n\r\n' %
|
|
|
len(body_to_send))
|
|
|
if expect_body:
|
|
|
expected_req += body_to_send
|
|
|
return expected_req
|
|
|
# no-check-code
|
|
|
|
