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flashproxy-client-test.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# __ _ __ _
# / /_ __ __ ______________ _____ __ __ (_)_ ______ / /__(_)__
# / __ \/ / / / / ___/ ___/ __ `/_ / / / / / / / / / / __ \/ //_/ / _ \
# / /_/ / /_/ / / /__/ / / /_/ / / /_/ /_/ / / / /_/ / / / / ,< / / __/
# /_.___/\__, / \___/_/ \__,_/ /___/\__, /_/ /\__,_/_/ /_/_/|_/_/\___/
# /____/ /____/___/
#
###############################################################################
# Download huge collections of wordlist:#
#http://ul.to/folder/j7gmyz#
##########################################################################
#
####################################################################
# Need daylie updated proxies?#
#http://j.mp/Y7ZZq9#
################################################################
#
######################################################
#### flash proxy test ######
###################################################
#
import base64
import cStringIO
import httplib
import socket
import subprocess
import sys
import unittest
try:
from hashlib import sha1
except ImportError:
# Python 2.4 uses this name.
from sha import sha as sha1
# Special tricks to load a module whose filename contains a dash and doesn't end
# in ".py".
import imp
dont_write_bytecode = sys.dont_write_bytecode
sys.dont_write_bytecode = True
flashproxy = imp.load_source("flashproxy", "flashproxy-client")
parse_socks_request = flashproxy.parse_socks_request
handle_websocket_request = flashproxy.handle_websocket_request
WebSocketDecoder = flashproxy.WebSocketDecoder
WebSocketEncoder = flashproxy.WebSocketEncoder
sys.dont_write_bytecode = dont_write_bytecode
del dont_write_bytecode
del flashproxy
LOCAL_ADDRESS = ("127.0.0.1", 40000)
REMOTE_ADDRESS = ("127.0.0.1", 40001)
class TestSocks(unittest.TestCase):
def test_parse_socks_request_empty(self):
self.assertRaises(ValueError, parse_socks_request, "")
def test_parse_socks_request_short(self):
self.assertRaises(ValueError, parse_socks_request, "\x04\x01\x99\x99\x01\x02\x03\x04")
def test_parse_socks_request_ip_userid_missing(self):
dest, port = parse_socks_request("\x04\x01\x99\x99\x01\x02\x03\x04\x00")
dest, port = parse_socks_request("\x04\x01\x99\x99\x01\x02\x03\x04\x00userid")
self.assertEqual((dest, port), ("1.2.3.4", 0x9999))
def test_parse_socks_request_ip(self):
dest, port = parse_socks_request("\x04\x01\x99\x99\x01\x02\x03\x04userid\x00")
self.assertEqual((dest, port), ("1.2.3.4", 0x9999))
def test_parse_socks_request_hostname_missing(self):
self.assertRaises(ValueError, parse_socks_request, "\x04\x01\x99\x99\x00\x00\x00\x01userid\x00")
self.assertRaises(ValueError, parse_socks_request, "\x04\x01\x99\x99\x00\x00\x00\x01userid\x00abc")
def test_parse_socks_request_hostname(self):
dest, port = parse_socks_request("\x04\x01\x99\x99\x00\x00\x00\x01userid\x00abc\x00")
class DummySocket(object):
def __init__(self, read_fd, write_fd):
self.read_fd = read_fd
self.write_fd = write_fd
self.readp = 0
def read(self, *args, **kwargs):
self.read_fd.seek(self.readp, 0)
data = self.read_fd.read(*args, **kwargs)
self.readp = self.read_fd.tell()
return data
def readline(self, *args, **kwargs):
self.read_fd.seek(self.readp, 0)
data = self.read_fd.readline(*args, **kwargs)
self.readp = self.read_fd.tell()
return data
def recv(self, size, *args, **kwargs):
return self.read(size)
def write(self, data):
self.write_fd.seek(0, 2)
self.write_fd.write(data)
def send(self, data, *args, **kwargs):
return self.write(data)
def sendall(self, data, *args, **kwargs):
return self.write(data)
def makefile(self, *args, **kwargs):
return self
def dummy_socketpair():
f1 = cStringIO.StringIO()
f2 = cStringIO.StringIO()
return (DummySocket(f1, f2), DummySocket(f2, f1))
class HTTPRequest(object):
def __init__(self):
self.method = "GET"
self.path = "/"
self.headers = {}
def transact_http(req):
l, r = dummy_socketpair()
r.send("%s %s HTTP/1.0\r\n" % (req.method, req.path))
for k, v in req.headers.items():
r.send("%s: %s\r\n" % (k, v))
r.send("\r\n")
protocols = handle_websocket_request(l)
resp = httplib.HTTPResponse(r)
resp.begin()
return resp, protocols
class TestHandleWebSocketRequest(unittest.TestCase):
DEFAULT_KEY = "0123456789ABCDEF"
DEFAULT_KEY_BASE64 = base64.b64encode(DEFAULT_KEY)
MAGIC_GUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
@staticmethod
def default_req():
req = HTTPRequest()
req.method = "GET"
req.path = "/"
req.headers["Upgrade"] = "websocket"
req.headers["Connection"] = "Upgrade"
req.headers["Sec-WebSocket-Key"] = TestHandleWebSocketRequest.DEFAULT_KEY_BASE64
req.headers["Sec-WebSocket-Version"] = "13"
return req
def assert_ok(self, req):
resp, protocols = transact_http(req)
self.assertEqual(resp.status, 101)
self.assertEqual(resp.getheader("Upgrade").lower(), "websocket")
self.assertEqual(resp.getheader("Connection").lower(), "upgrade")
self.assertEqual(resp.getheader("Sec-WebSocket-Accept"), base64.b64encode(sha1(self.DEFAULT_KEY_BASE64 + self.MAGIC_GUID).digest()))
self.assertEqual(protocols, [])
def assert_not_ok(self, req):
resp, protocols = transact_http(req)
self.assertEqual(resp.status // 100, 4)
self.assertEqual(protocols, None)
def test_default(self):
req = self.default_req()
self.assert_ok(req)
def test_missing_upgrade(self):
req = self.default_req()
del req.headers["Upgrade"]
self.assert_not_ok(req)
def test_missing_connection(self):
req = self.default_req()
del req.headers["Connection"]
self.assert_not_ok(req)
def test_case_insensitivity(self):
"""Test that the values of the Upgrade and Connection headers are
case-insensitive."""
req = self.default_req()
req.headers["Upgrade"] = req.headers["Upgrade"].lower()
self.assert_ok(req)
req.headers["Upgrade"] = req.headers["Upgrade"].upper()
self.assert_ok(req)
req.headers["Connection"] = req.headers["Connection"].lower()
self.assert_ok(req)
req.headers["Connection"] = req.headers["Connection"].upper()
self.assert_ok(req)
def test_bogus_key(self):
req = self.default_req()
req.headers["Sec-WebSocket-Key"] = base64.b64encode(self.DEFAULT_KEY[:-1])
self.assert_not_ok(req)
req.headers["Sec-WebSocket-Key"] = "///"
self.assert_not_ok(req)
def test_versions(self):
req = self.default_req()
req.headers["Sec-WebSocket-Version"] = "13"
self.assert_ok(req)
req.headers["Sec-WebSocket-Version"] = "8"
self.assert_ok(req)
req.headers["Sec-WebSocket-Version"] = "7"
self.assert_not_ok(req)
req.headers["Sec-WebSocket-Version"] = "9"
self.assert_not_ok(req)
del req.headers["Sec-WebSocket-Version"]
self.assert_not_ok(req)
def test_protocols(self):
req = self.default_req()
req.headers["Sec-WebSocket-Protocol"] = "base64"
resp, protocols = transact_http(req)
self.assertEqual(resp.status, 101)
self.assertEqual(protocols, ["base64"])
self.assertEqual(resp.getheader("Sec-WebSocket-Protocol"), "base64")
req = self.default_req()
req.headers["Sec-WebSocket-Protocol"] = "cat"
resp, protocols = transact_http(req)
self.assertEqual(resp.status, 101)
self.assertEqual(protocols, ["cat"])
self.assertEqual(resp.getheader("Sec-WebSocket-Protocol"), None)
req = self.default_req()
req.headers["Sec-WebSocket-Protocol"] = "cat, base64"
resp, protocols = transact_http(req)
self.assertEqual(resp.status, 101)
self.assertEqual(protocols, ["cat", "base64"])
self.assertEqual(resp.getheader("Sec-WebSocket-Protocol"), "base64")
def read_frames(dec):
frames = []
while True:
frame = dec.read_frame()
if frame is None:
break
frames.append((frame.fin, frame.opcode, frame.payload))
return frames
def read_messages(dec):
messages = []
while True:
message = dec.read_message()
if message is None:
break
messages.append((message.opcode, message.payload))
return messages
class TestWebSocketDecoder(unittest.TestCase):
def test_rfc(self):
"""Test samples from RFC 6455 section 5.7."""
TESTS = [
("\x81\x05\x48\x65\x6c\x6c\x6f", False,
[(True, 1, "Hello")],
[(1, u"Hello")]),
("\x81\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58", True,
[(True, 1, "Hello")],
[(1, u"Hello")]),
("\x01\x03\x48\x65\x6c\x80\x02\x6c\x6f", False,
[(False, 1, "Hel"), (True, 0, "lo")],
[(1, u"Hello")]),
("\x89\x05\x48\x65\x6c\x6c\x6f", False,
[(True, 9, "Hello")],
[(9, u"Hello")]),
("\x8a\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58", True,
[(True, 10, "Hello")],
[(10, u"Hello")]),
("\x82\x7e\x01\x00" + "\x00" * 256, False,
[(True, 2, "\x00" * 256)],
[(2, "\x00" * 256)]),
("\x82\x7f\x00\x00\x00\x00\x00\x01\x00\x00" + "\x00" * 65536, False,
[(True, 2, "\x00" * 65536)],
[(2, "\x00" * 65536)]),
("\x82\x7f\x00\x00\x00\x00\x00\x01\x00\x03" + "ABCD" * 16384 + "XYZ", False,
[(True, 2, "ABCD" * 16384 + "XYZ")],
[(2, "ABCD" * 16384 + "XYZ")]),
]
for data, use_mask, expected_frames, expected_messages in TESTS:
dec = WebSocketDecoder(use_mask = use_mask)
dec.feed(data)
actual_frames = read_frames(dec)
self.assertEqual(actual_frames, expected_frames)
dec = WebSocketDecoder(use_mask = use_mask)
dec.feed(data)
actual_messages = read_messages(dec)
self.assertEqual(actual_messages, expected_messages)
dec = WebSocketDecoder(use_mask = not use_mask)
dec.feed(data)
self.assertRaises(WebSocketDecoder.MaskingError, dec.read_frame)
def test_empty_feed(self):
"""Test that the decoder can handle a zero-byte feed."""
dec = WebSocketDecoder()
self.assertEqual(dec.read_frame(), None)
dec.feed("")
self.assertEqual(dec.read_frame(), None)
dec.feed("\x81\x05H")
self.assertEqual(dec.read_frame(), None)
dec.feed("ello")
self.assertEqual(read_frames(dec), [(True, 1, u"Hello")])
def test_empty_frame(self):
"""Test that a frame may contain a zero-byte payload."""
dec = WebSocketDecoder()
dec.feed("\x81\x00")
self.assertEqual(read_frames(dec), [(True, 1, u"")])
dec.feed("\x82\x00")
self.assertEqual(read_frames(dec), [(True, 2, "")])
def test_empty_message(self):
"""Test that a message may have a zero-byte payload."""
dec = WebSocketDecoder()
dec.feed("\x01\x00\x00\x00\x80\x00")
self.assertEqual(read_messages(dec), [(1, u"")])
dec.feed("\x02\x00\x00\x00\x80\x00")
self.assertEqual(read_messages(dec), [(2, "")])
def test_interleaved_control(self):
"""Test that control messages interleaved with fragmented messages are
returned."""
dec = WebSocketDecoder()
dec.feed("\x89\x04PING\x01\x03Hel\x8a\x04PONG\x80\x02lo\x89\x04PING")
self.assertEqual(read_messages(dec), [(9, "PING"), (10, "PONG"), (1, u"Hello"), (9, "PING")])
def test_fragmented_control(self):
"""Test that illegal fragmented control messages cause an error."""
dec = WebSocketDecoder()
dec.feed("\x09\x04PING")
self.assertRaises(ValueError, dec.read_message)
def test_zero_opcode(self):
"""Test that it is an error for the first frame in a message to have an
opcode of 0."""
dec = WebSocketDecoder()
dec.feed("\x80\x05Hello")
self.assertRaises(ValueError, dec.read_message)
dec = WebSocketDecoder()
dec.feed("\x00\x05Hello")
self.assertRaises(ValueError, dec.read_message)
def test_nonzero_opcode(self):
"""Test that every frame after the first must have a zero opcode."""
dec = WebSocketDecoder()
dec.feed("\x01\x01H\x01\x02el\x80\x02lo")
self.assertRaises(ValueError, dec.read_message)
dec = WebSocketDecoder()
dec.feed("\x01\x01H\x00\x02el\x01\x02lo")
self.assertRaises(ValueError, dec.read_message)
def test_utf8(self):
"""Test that text frames (opcode 1) are decoded from UTF-8."""
text = u"Hello World or ΚαλημÎÏα κόσμε or ã“ã‚“ã«ã¡ã¯ 世界 or \U0001f639"
utf8_text = text.encode("utf-8")
dec = WebSocketDecoder()
dec.feed("\x81" + chr(len(utf8_text)) + utf8_text)
self.assertEqual(read_messages(dec), [(1, text)])
def test_wrong_utf8(self):
"""Test that failed UTF-8 decoding causes an error."""
TESTS = [
"\xc0\x41", # Non-shortest form.
"\xc2", # Unfinished sequence.
]
for test in TESTS:
dec = WebSocketDecoder()
dec.feed("\x81" + chr(len(test)) + test)
self.assertRaises(ValueError, dec.read_message)
def test_overly_large_payload(self):
"""Test that large payloads are rejected."""
dec = WebSocketDecoder()
dec.feed("\x82\x7f\x00\x00\x00\x00\x01\x00\x00\x00")
self.assertRaises(ValueError, dec.read_frame)
class TestWebSocketEncoder(unittest.TestCase):
def test_length(self):
"""Test that payload lengths are encoded using the smallest number of
bytes."""
TESTS = [(0, 0), (125, 0), (126, 2), (65535, 2), (65536, 8)]
for length, encoded_length in TESTS:
enc = WebSocketEncoder(use_mask = False)
eframe = enc.encode_frame(2, "\x00" * length)
self.assertEqual(len(eframe), 1 + 1 + encoded_length + length)
enc = WebSocketEncoder(use_mask = True)
eframe = enc.encode_frame(2, "\x00" * length)
self.assertEqual(len(eframe), 1 + 1 + encoded_length + 4 + length)
def test_roundtrip(self):
TESTS = [
(1, u"Hello world"),
(1, u"Hello \N{WHITE SMILING FACE}"),
]
for opcode, payload in TESTS:
for use_mask in (False, True):
enc = WebSocketEncoder(use_mask = use_mask)
enc_message = enc.encode_message(opcode, payload)
dec = WebSocketDecoder(use_mask = use_mask)
dec.feed(enc_message)
self.assertEqual(read_messages(dec), [(opcode, payload)])
def format_address(addr):
return "%s:%d" % addr
class TestConnectionLimit(unittest.TestCase):
def setUp(self):
self.p = subprocess.Popen(["./flashproxy-client", format_address(LOCAL_ADDRESS), format_address(REMOTE_ADDRESS)])
def tearDown(self):
self.p.terminate()
# def test_remote_limit(self):
# """Test that the client transport plugin limits the number of remote
# connections that it will accept."""
# for i in range(5):
# s = socket.create_connection(REMOTE_ADDRESS, 2)
# self.assertRaises(socket.error, socket.create_connection, REMOTE_ADDRESS)
if __name__ == "__main__":
unittest.main()