mitmproxy/examples/contrib/change_upstream_proxy.py
Maximilian Hils 08895e9ba6 restructure examples
- restructure examples (fix #4031)
 - remove example dependencies from setup.py,
   we do not need special dependencies for our supported addons.
 - unify how we generate docs from code
 - improve example docs
2020-06-23 16:00:14 +02:00

28 lines
1.0 KiB
Python

from mitmproxy import http
import typing
# This scripts demonstrates how mitmproxy can switch to a second/different upstream proxy
# in upstream proxy mode.
#
# Usage: mitmdump -U http://default-upstream-proxy.local:8080/ -s change_upstream_proxy.py
#
# If you want to change the target server, you should modify flow.request.host and flow.request.port
def proxy_address(flow: http.HTTPFlow) -> typing.Tuple[str, int]:
# Poor man's loadbalancing: route every second domain through the alternative proxy.
if hash(flow.request.host) % 2 == 1:
return ("localhost", 8082)
else:
return ("localhost", 8081)
def request(flow: http.HTTPFlow) -> None:
if flow.request.method == "CONNECT":
# If the decision is done by domain, one could also modify the server address here.
# We do it after CONNECT here to have the request data available as well.
return
address = proxy_address(flow)
if flow.live:
flow.live.change_upstream_proxy_server(address) # type: ignore