def socks_connect(self, connect_to):
try:
client_greet = socks.ClientGreeting(
socks.VERSION.SOCKS5,
[socks.METHOD.NO_AUTHENTICATION_REQUIRED])
client_greet.to_file(self.wfile)
self.wfile.flush()
server_greet = socks.ServerGreeting.from_file(self.rfile)
server_greet.assert_socks5()
if server_greet.method != socks.METHOD.NO_AUTHENTICATION_REQUIRED:
raise socks.SocksError(
socks.METHOD.NO_ACCEPTABLE_METHODS,
"pathoc only supports SOCKS without authentication")
connect_request = socks.Message(
socks.VERSION.SOCKS5,
socks.CMD.CONNECT,
socks.ATYP.DOMAINNAME,
connect_to,
)
connect_request.to_file(self.wfile)
self.wfile.flush()
connect_reply = socks.Message.from_file(self.rfile)
connect_reply.assert_socks5()
if connect_reply.msg != socks.REP.SUCCEEDED:
raise socks.SocksError(connect_reply.msg, "SOCKS server error")
except (socks.SocksError, exceptions.TcpDisconnect) as e:
raise PathocError(str(e))
def test_with_authentication(self):
p = self.pathoc()
with p.connect():
socks.ClientGreeting(
socks.VERSION.SOCKS5,
[socks.METHOD.USERNAME_PASSWORD]
).to_file(p.wfile)
p.wfile.flush()
f = p.request("get:/p/200") # the request doesn't matter, error response from handshake will be read anyway.
assert f.status_code == 502
assert b"SOCKS5 mode failure" in f.content
assert b"mitmproxy only supports SOCKS without authentication" in f.content
def test_no_connect(self):
"""
mitmproxy doesn't support UDP or BIND SOCKS CMDs
"""
p = self.pathoc()
with p.connect():
socks.ClientGreeting(
socks.VERSION.SOCKS5,
[socks.METHOD.NO_AUTHENTICATION_REQUIRED]).to_file(p.wfile)
socks.Message(socks.VERSION.SOCKS5, socks.CMD.BIND,
socks.ATYP.DOMAINNAME,
("example.com", 8080)).to_file(p.wfile)
p.wfile.flush()
p.rfile.read(2) # read server greeting
f = p.request(
"get:/p/200"
) # the request doesn't matter, error response from handshake will be read anyway.
assert f.status_code == 502
assert b"SOCKS5 mode failure" in f.content