1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
import pytest
from socksio import (
ProtocolError,
SOCKS4ARequest,
SOCKS4Command,
SOCKS4Connection,
SOCKS4Reply,
SOCKS4ReplyCode,
SOCKS4Request,
SOCKSError,
)
@pytest.mark.parametrize(
"address,expected_address,expected_port",
[
(("127.0.0.1", 3080), b"\x7f\x00\x00\x01", 3080),
(("127.0.0.1", "3080"), b"\x7f\x00\x00\x01", 3080),
("127.0.0.1:8080", b"\x7f\x00\x00\x01", 8080),
((b"127.0.0.1", 3080), b"\x7f\x00\x00\x01", 3080),
((b"127.0.0.1", b"3080"), b"\x7f\x00\x00\x01", 3080),
(b"127.0.0.1:8080", b"\x7f\x00\x00\x01", 8080),
],
)
def test_socks4request_from_address(address, expected_address, expected_port) -> None:
req = SOCKS4Request.from_address(SOCKS4Command.CONNECT, address, user_id=b"socksio")
assert req.command == SOCKS4Command.CONNECT
assert req.addr == expected_address
assert req.port == expected_port
assert req.user_id == b"socksio"
@pytest.mark.parametrize(
"address,user_id",
[
(("::1", 3080), b"socksio"), # IPV6
("localhost:3080", b"socksio"), # Domain names
],
)
def test_socks4request_from_address_errors(address, user_id) -> None:
with pytest.raises(SOCKSError):
SOCKS4Request.from_address(
command=SOCKS4Command.BIND, address=address, user_id=user_id
)
def test_socks4request_from_address_dump_raises_if_no_user_id():
req = SOCKS4Request.from_address(SOCKS4Command.CONNECT, "127.0.0.1:8080")
with pytest.raises(SOCKSError):
req.dumps()
@pytest.mark.parametrize(
"address,expected_address,expected_port",
[
(("127.0.0.1", 3080), b"\x7f\x00\x00\x01", 3080),
(("127.0.0.1", "3080"), b"\x7f\x00\x00\x01", 3080),
("127.0.0.1:8080", b"\x7f\x00\x00\x01", 8080),
((b"127.0.0.1", 3080), b"\x7f\x00\x00\x01", 3080),
((b"127.0.0.1", b"3080"), b"\x7f\x00\x00\x01", 3080),
(b"127.0.0.1:8080", b"\x7f\x00\x00\x01", 8080),
],
)
def test_socks4arequest_from_address(address, expected_address, expected_port) -> None:
req = SOCKS4ARequest.from_address(
SOCKS4Command.CONNECT, address, user_id=b"socksio"
)
assert req.command == SOCKS4Command.CONNECT
assert req.addr == expected_address
assert req.port == expected_port
assert req.user_id == b"socksio"
def test_socks4arequest_from_address_dump_raises_if_no_user_id():
req = SOCKS4ARequest.from_address(SOCKS4Command.CONNECT, "127.0.0.1:8080")
with pytest.raises(SOCKSError):
req.dumps()
@pytest.mark.parametrize("command", [SOCKS4Command.BIND, SOCKS4Command.CONNECT])
def test_socks4_connection_request(command: SOCKS4Command) -> None:
conn = SOCKS4Connection(user_id=b"socks")
request = SOCKS4Request.from_address(command=command, address=("127.0.0.1", 8080))
conn.send(request)
data = conn.data_to_send()
assert len(data) == 9 + 5
assert data[0:1] == b"\x04"
assert data[1:2] == command
assert data[2:4] == (8080).to_bytes(2, byteorder="big")
assert data[4:8] == b"\x7f\x00\x00\x01"
assert data[8:13] == b"socks"
assert data[13] == 0
@pytest.mark.parametrize("request_reply_code", list(SOCKS4ReplyCode))
def test_socks4_receive_data(request_reply_code: bytes) -> None:
conn = SOCKS4Connection(user_id=b"socks")
reply = conn.receive_data(
b"".join(
[
b"\x00",
request_reply_code,
(8080).to_bytes(2, byteorder="big"),
b"\x7f\x00\x00\x01",
]
)
)
assert reply == SOCKS4Reply(
reply_code=SOCKS4ReplyCode(request_reply_code), port=8080, addr="127.0.0.1"
)
@pytest.mark.parametrize(
"data",
[
b"\x00Z\x1f\x90\x7f\x00\x00", # missing one byte
b"\x0FZ\x1f\x90\x7f\x00\x00\x01", # not starting with 0
b"\x00\xFF\x1f\x90\x7f\x00\x00\x01", # incorrect reply code
],
)
def test_socks4_receive_malformed_data(data: bytes) -> None:
conn = SOCKS4Connection(user_id=b"socks")
with pytest.raises(ProtocolError):
conn.receive_data(data)
@pytest.mark.parametrize("command", [SOCKS4Command.BIND, SOCKS4Command.CONNECT])
def test_SOCKS4A_connection_request(command: SOCKS4Command) -> None:
conn = SOCKS4Connection(user_id=b"socks")
request = SOCKS4ARequest.from_address(
command=command, address=("proxy.example.com", 8080)
)
conn.send(request)
data = conn.data_to_send()
assert len(data) == 32
assert data[0:1] == b"\x04"
assert data[1:2] == command
assert data[2:4] == (8080).to_bytes(2, byteorder="big")
assert data[4:8] == b"\x00\x00\x00\xFF"
assert data[8:14] == b"socks\x00"
assert data[14:] == b"proxy.example.com\x00"
|
