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
|
import socket
from ._stream_sync import SyncSocketStream
from ._proto_socks4 import (
ConnectRequest,
ConnectResponse
)
class Socks4Proto:
def __init__(self, stream: SyncSocketStream, dest_host, dest_port,
user_id=None, rdns=None):
if rdns is None:
rdns = False
self._dest_host = dest_host
self._dest_port = dest_port
self._user_id = user_id
self._rdns = rdns
self._stream = stream
def negotiate(self):
self._socks_connect()
def _socks_connect(self):
req = ConnectRequest(
host=self._dest_host,
port=self._dest_port,
user_id=self._user_id,
rdns=self._rdns
)
if req.need_resolve:
_, addr = self._stream.resolver.resolve(
req.host,
family=socket.AF_INET
)
req.set_resolved_host(addr)
self._stream.write_all(bytes(req))
data = self._stream.read_exact(8)
res = ConnectResponse(data[:2])
res.validate()
|
