redirect.py

from mitmproxy import http

def request(flow: http.HTTPFlow) -> None:
    # pretty_host takes the "Host" header of the request into account,
    # which is useful in transparent mode where we usually only have the IP
    # otherwise.
    flow.request.headers['User-Agent'] = 'MitmProxy'
    if flow.request.pretty_host == "123.com.tw":
        flow.request.host = "456.com.tw"
    # 將123.com.tw的訪問全導到456.com.tw