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from cStringIO import StringIO
import socket
from nose.plugins.skip import SkipTest
from netlib import socks, tcp
import tutils
def test_client_greeting():
raw = tutils.treader("\x05\x02\x00\xBE\xEF")
out = StringIO()
msg = socks.ClientGreeting.from_file(raw)
msg.to_file(out)
assert out.getvalue() == raw.getvalue()[:-1]
assert msg.ver == 5
assert len(msg.methods) == 2
assert 0xBE in msg.methods
assert 0xEF not in msg.methods
def test_server_greeting():
raw = tutils.treader("\x05\x02")
out = StringIO()
msg = socks.ServerGreeting.from_file(raw)
msg.to_file(out)
assert out.getvalue() == raw.getvalue()
assert msg.ver == 5
assert msg.method == 0x02
def test_message():
raw = tutils.treader("\x05\x01\x00\x03\x0bexample.com\xDE\xAD\xBE\xEF")
out = StringIO()
msg = socks.Message.from_file(raw)
assert raw.read(2) == "\xBE\xEF"
msg.to_file(out)
assert out.getvalue() == raw.getvalue()[:-2]
assert msg.ver == 5
assert msg.msg == 0x01
assert msg.atyp == 0x03
assert msg.addr == ("example.com", 0xDEAD)
def test_message_ipv4():
# Test ATYP=0x01 (IPV4)
raw = tutils.treader("\x05\x01\x00\x01\x7f\x00\x00\x01\xDE\xAD\xBE\xEF")
out = StringIO()
msg = socks.Message.from_file(raw)
assert raw.read(2) == "\xBE\xEF"
msg.to_file(out)
assert out.getvalue() == raw.getvalue()[:-2]
assert msg.addr == ("127.0.0.1", 0xDEAD)
def test_message_ipv6():
if not hasattr(socket, "inet_ntop"):
raise SkipTest("Skipped because inet_ntop is not available")
# Test ATYP=0x04 (IPV6)
ipv6_addr = "2001:db8:85a3:8d3:1319:8a2e:370:7344"
raw = tutils.treader(
"\x05\x01\x00\x04" +
socket.inet_pton(
socket.AF_INET6,
ipv6_addr) +
"\xDE\xAD\xBE\xEF")
out = StringIO()
msg = socks.Message.from_file(raw)
assert raw.read(2) == "\xBE\xEF"
msg.to_file(out)
assert out.getvalue() == raw.getvalue()[:-2]
assert msg.addr.host == ipv6_addr
def test_message_invalid_rsv():
raw = tutils.treader("\x05\x01\xFF\x01\x7f\x00\x00\x01\xDE\xAD\xBE\xEF")
tutils.raises(socks.SocksError, socks.Message.from_file, raw)
def test_message_unknown_atyp():
raw = tutils.treader("\x05\x02\x00\x02\x7f\x00\x00\x01\xDE\xAD\xBE\xEF")
tutils.raises(socks.SocksError, socks.Message.from_file, raw)
m = socks.Message(5, 1, 0x02, tcp.Address(("example.com", 5050)))
tutils.raises(socks.SocksError, m.to_file, StringIO())
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