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Asked: 2026-05-19T13:46:03+00:00

I’m trying to create a simple web filtering app in python. The way I

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I’m trying to create a simple web filtering app in python. The way I want to do this is to monitor traffic on ports tcp 80/443 (http) and if there is traffic, I want to check something before I let it go through. If it fails the check, I would like for the user to be redirected to a page of my choosing.

So my question is, when the user visits http://www.google.com in the browser, is there a way that I can intercept that request, and is there a way I can redirect them to another page by my choosing?

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  1. Editorial Team

    You need to write a web proxy, and set your web clients proxy server to http://localhost:8000/ (or whatever the proxy is listening on).

    Your web client will then send HTTP like this:

    GET http://www.google.com

    to your proxy which it must then rewrite as:

    GET /

    and send on to http://www.google.com, getting the response and then sending it back on the original socket to the client. Note that explanation is massively simplified.

    Anyway, its all standard stuff and I suspect Python web proxies exist already for you to hack on.

    Edit: http://proxies.xhaus.com/python/

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