モバイルアプリ開発者のための mitmproxy 入門 ref: http://qiita.com/hkurokawa/items/9034274cc1b9e1405c68

file0.txt

pip install mitmproxy

file1.txt

% mitmproxy

file2.py

# -*- coding: utf-8 -*-
def response(context, flow):
    path = flow.request.path
    query = flow.request.get_query()
    if path.endswith("/api/v1/list.json") and query.in_any('type', 'reload'):
        flow.response.replace("艦これ", "hogehoge")

file3.txt

mitmproxy -s test_mitmproxy.py

file4.py

# -*- coding: utf-8 -*-
import random

def start(ctx, argv):
    if len(argv) != 3:
        raise ValueError('Usage: -s "pseudo_unstable_network.py hostname percentage(0-10)"')
    # You may want to use Python's argparse for more sophisticated argument parsing.
    ctx.arg1, ctx.arg2 = argv[1], argv[2]

def request(context, flow):
    host = flow.request.host
    if host.endswith(context.arg1) and random.randint(0, 10) <= int(context.arg2):
        context.log("Kill the request for %s. Host: %s" % (flow.request.get_url(), host))
        flow.kill(context._master)

file5.txt

mitmproxy -s "pseudo_unstable_network.py api.example.com 8"