blob: 57e11d5bebbb59d4fc7d0021354a1ec97a154322 (
plain)
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
|
# This script makes mitmproxy switch to passthrough mode for all HTTP
# responses with "Connection: Upgrade" header. This is useful to make
# WebSockets work in untrusted environments.
#
# Note: Chrome (and possibly other browsers), when explicitly configured
# to use a proxy (i.e. mitmproxy's regular mode), send a CONNECT request
# to the proxy before they initiate the websocket connection.
# To make WebSockets work in these cases, supply
# `--ignore :80$` as an additional parameter.
# (see http://mitmproxy.org/doc/features/passthrough.html)
import netlib.http.semantics
from libmproxy.protocol.tcp import TCPHandler
from libmproxy.protocol import KILL
from libmproxy.script import concurrent
def start(context, argv):
netlib.http.semantics.Request._headers_to_strip_off.remove("Connection")
netlib.http.semantics.Request._headers_to_strip_off.remove("Upgrade")
def done(context):
netlib.http.semantics.Request._headers_to_strip_off.append("Connection")
netlib.http.semantics.Request._headers_to_strip_off.append("Upgrade")
@concurrent
def response(context, flow):
value = flow.response.headers.get_first("Connection", None)
if value and value.upper() == "UPGRADE":
# We need to send the response manually now...
flow.client_conn.send(flow.client_conn.protocol.assemble(flow.response))
# ...and then delegate to tcp passthrough.
TCPHandler(flow.live.c, log=False).handle_messages()
flow.reply(KILL)
|
